Parallel Web Systems jobs

Senior Software Engineer, GraphQL Remote - United States Reddit is a community of communities. It's built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 126 million daily active unique visitors, Reddit is one of the internet's largest sources of information. For more information, visit www.redditinc.com . Location: This role is completely remote-friendly . If you happen to live close to one of our physical office locations, our doors are open for you to come into the office as often as you'd like. Who We Are GraphQL is Reddit's first-party API layer, providing client access to Reddit's rich dataset and driving the next generation of user experiences. GraphQL provides product engineers across Reddit clear interfaces, a powerful and flexible execution engine, and world-class developer ergonomics. Our team's mission is to develop the next generation of foundational GraphQL infrastructure, scale our solutions to support hundreds of millions of users, and build intuitive tools for contributors to create and expand GraphQL schema. Some of our present and future challenges include: - Driving adoption of our Golang-based federated GraphQL architecture. - Deploying GraphQL to operate concurrently across global datacenters. - Expanding our developer tooling to enable elegant schema contributions. - Building deep observability to coordinate GraphQL requests efficiently across Reddit's architecture. - Tuning our stack for latency, resilience, and scale. What you'll

Full Stack Web Developer 3 Locations posted: Posted 30+ Days Ago

Full Stack Web Developer 50 Locations posted: Posted 2 Days Ago

Web Full Stack Developer 2 Locations posted: Posted 3 Days Ago

Principal Software Engineer Torrance, California, United States About Epirus E pirus is a high-growth technology company dedicated to overcoming the asymmetric challenges inherent to the future of national security. Epirus' flagship product, Leonidas, is a software-defined system built using intelligent power management techniques that allow power-hungry systems to do more with less. Job Summary: This is an exciting role in an innovative, high-growth defense technology company. The ideal candidate for the position is someone who has a breadth of knowledge developing software in embedded systems using modern programming languages. Responsibilities: - Building the software for real-time coordination of hundreds of intelligent power-amplified modules over web-based services - Architecting and evolving an embedded Linux platform utilizing open-source software and web-based microservices - Design and implementation of system management software to safely bring up, shutdown, and monitor a distributed system of electronic components - Provide mentorship and guidance to team members in the art of embedded software development Basic Qualifications: - BS degree in Computer Engineering, Computer Science, or related - 8+ years of experience developing software in a systems programming language such as C++, Rust, or C - Experience developing resource-constrained software for embedded systems - Expert knowledge of multi-threading, parallelism, and concurrency; an ability to produce thread-safe software modules that cooperate well together - A firm grasp of Data Structures, Algorithms, Design Patterns, and other Computer Science fundamentals - An understanding of computing performance and an ability to optimize software performance in large or distributed systems - US Citizen or

AI Trainer - Advanced HTML/ CSS Developers Remote AI Trainer - Advanced HTML/ CSS Developers About Prolific Prolific is not just another player in the AI space - we are building the biggest pool of quality human data in the world. Over 35,000 AI developers, researchers, and organizations use Prolific to gather data from paid study participants with a wide variety of experiences, knowledge, and skills. The role We're looking for HTML/ CSS Developers to help train and evaluate cutting-edge AI models. If you have the necessary experience, we'll send you an assessment to test your skills and suitability for AI tasks. If successful, you'll be invited to join Prolific as a Domain Expert participant, where you'll get paid to train and evaluate powerful AI models. Researchers looking for your skills tend to pay $40/hr per AI task completed. You must be prepared to complete paid tasks that require one hour of uninterrupted work, though many are shorter. What you'll bring HTML/ CSS developer skills and verifiable professional experience as a HTML/ CSS developer A willingness to take our skills verification test to assess your suitability for our Domain Expert participant pool Strong attention to detail and the ability to concentrate on complex tasks for up to one hour at a time A reliable and fast internet connection and access to a computer A willingness to self-declare your earnings, as our participants are self-employed A Paypal account to receive payment from our clients What you'll be doing in the role

Software Engineer, Parallel File Systems, AI/ML Storage Seattle, WA, USA Google's software engineers develop the next-generation technologies that change how billions of users connect, explore, and interact with information and one another. Our products need to handle information at massive scale, and extend well beyond web search. We're looking for engineers who bring fresh ideas from all areas, including information retrieval, distributed computing, large-scale system design, networking and data storage, security, artificial intelligence, natural language processing, UI design and mobile; the list goes on and is growing every day. As a software engineer, you will work on a specific project critical to Google's needs with opportunities to switch teams and projects as you and our fast-paced business grow and evolve. We need our engineers to be versatile, display leadership qualities and be enthusiastic to take on new problems across the full-stack as we continue to push technology forward. In this role, AI/ML includes many different workflows like pre-training, training, reinforcement learning, inferencing, etc. You will be instrumental in building the next-generation of cloud storage, specifically tailored for extreme-scale, data-intensive workloads such as generative AI and real-time inference. You will join us in delivering industry-leading performance, with the service aiming for throughput up to 10TB/s, significantly surpassing performer offerings. Google Cloud accelerates every organization's ability to digitally transform its business and industry. We deliver enterprise-grade solutions that leverage Google's cutting-edge technology, and tools that help developers build more sustainably. Customers in more than 200 countries and territories turn to Google Cloud

Web Developer 2 Locations posted: Posted 2 Days Ago

Electrical Engineer – Vehicle Systems Los Angeles, CA Parallel Systems is pioneering autonomous battery-electric rail vehicles designed to transform freight transportation by shifting portions of the $900 billion U.S. trucking industry onto rail. Our innovative technology offers cleaner, safer, and more efficient logistics solutions. Join our dynamic team and help shape a smarter, greener future for global freight. Electrical Engineer - Vehicle Systems Parallel Systems is seeking an Electrical Engineer to own the design and development of vehicle electrical systems for our production autonomous battery-electric rail vehicles. This role focuses on vehicle electronics, including power distribution, traction & braking systems, safety-critical control logic, and compute/sensor networks. You'll serve as the responsible engineer of high-reliability electrical systems that are tightly integrated with mechanical, software, and autonomy components and subject to regulatory oversight. The ideal candidate brings automotive or vehicle experience, is eager to work on regulated, safety-critical systems, and thrives in cross-functional environments. This position requires up to 25% travel to our contract manufacturer and customer sites. Responsibilities: - Own the design & development of vehicle electrical systems, including wiring harnesses, commercial-off-the-shelf hardware, and test stands - Drive the development and documentation of safety-critical subsystems, including DFMEAs, system hazard analyses, and verification & validation - Perform hands-on hardware bring-up, bench testing, and debugging of electrical assemblies and prototype vehicles - Lead end-to-end system integration with full lifecycle ownership, interface management, and cross-functional alignment to ensure the system works with all software and mechanical dependencies - Maintain accurate engineering documentation including schematics,

Web Engineer Gurugram

MTS 1, Full Stack Engineer Toronto, Ontario, Canada Join our team as a Senior Full Stack Engineer and help shape the future of global ecommerce. Collaborate with high-velocity teams to design, build, and scale scalable cloud-native solutions on AWS. Leverage your expertise in Python, JavaScript, and modern cloud technologies to deliver impactful consumer-facing applications at scale.

System Test Engineer Los Angeles, CA Parallel Systems is pioneering autonomous battery-electric rail vehicles designed to transform freight transportation by shifting portions of the $900 billion U.S. trucking industry onto rail. Our innovative technology offers cleaner, safer, and more efficient logistics solutions. Join our dynamic team and help shape a smarter, greener future for global freight. Senior System Test Engineer Parallel Systems is building autonomous, battery-electric rail vehicles to modernize freight transportation. We are looking for a hands-on System Test Engineer to own hardware and vehicle validations at our HQ and contract manufacturer, ensuring every system meets performance, safety, and regulatory requirements before release. This role sits at the intersection of systems engineering, hardware validation, and factory operations. You will work closely with internal Responsible Engineers and other stakeholders to define how vehicles are tested, execute validation campaigns, and maintain rigorous traceability from top-level requirements through subsystem and vehicle verification. Responsibilities - Own vehicle-level and subsystem validation activities, including overall system validation site acceptance testing, and customer integration testing - Design, build, and operate test benches and related V&V infrastructure - Plan and execute system integration and validation campaigns across mechanical, electrical, controls, and embedded software systems - Plan and execute environmental qualification or DVP campaigns for vehicle and subsystems - Work with Responsible Engineers to decompose top-level system requirements into actionable test requirements and verification plans - Manage and maintain requirements traceability from system requirements through validation evidence using a structured requirements database - Define and document test procedures,

Compute Server Platform Architect Sunnyvale CA or Toronto Canada Cerebras Systems builds the world's largest AI chip, 56 times larger than GPUs. Our novel wafer-scale architecture provides the AI compute power of dozens of GPUs on a single chip, with the programming simplicity of a single device. This approach allows Cerebras to deliver industry-leading training and inference speeds and empowers machine learning users to effortlessly run large-scale ML applications, without the hassle of managing hundreds of GPUs or TPUs. Cerebras' current customers include top model labs, global enterprises, and cutting-edge AI-native startups. OpenAI recently announced a multi-year partnership with Cerebras , to deploy 750 megawatts of scale, transforming key workloads with ultra high-speed inference. Thanks to the groundbreaking wafer-scale architecture, Cerebras Inference offers the fastest Generative AI inference solution in the world, over 10 times faster than GPU-based hyperscale cloud inference services. This order of magnitude increase in speed is transforming the user experience of AI applications, unlocking real-time iteration and increasing intelligence via additional agentic computation. About The Role As a Compute / Server Platform Architect on the Cluster Architecture Team, you will own the server-side platform architecture that enables Cerebras CS3-based AI clusters (training and inference) to deliver predictable performance, scalability, and reliability. Our accelerators are network-attached, so the x86 server fleet is a first-class part of the end-to-end system: it runs critical-path runtime functions (for example orchestration, prompt caching, and IO/control services) and must be co-designed with software for token-level latency, throughput, and cost efficiency. You will

Senior Software Engineer Los Angeles, CA Parallel Systems is pioneering autonomous battery-electric rail vehicles designed to transform freight transportation by shifting portions of the $900 billion U.S. trucking industry onto rail. Our innovative technology offers cleaner, safer, and more efficient logistics solutions. Join our dynamic team and help shape a smarter, greener future for global freight. Senior Software Engineer Parallel Systems is seeking a Senior Software Engineer to design, build, and optimize critical system applications. You will work on high-performance backend systems that empower our rail vehicles to navigate the rail network safely and securely, as well as interface with customer's train control systems. This role requires deep expertise in systems programming and the ability to build robust, efficient software solutions. Responsibilities: - Design and implement high-performance, low-latency backend systems for critical train control applications. - Develop and maintain system-level software written primarily in Rust. - Optimize existing codebases for scalability, performance, and reliability. - Collaborate with cross-functional teams to architect fault-tolerant and distributed systems. - Ensure software meets security, compliance, and performance standards. - Conduct performance profiling, debugging, and system diagnostics for complex issues. - Contribute to code reviews, technical discussions, and best practices within the team. What Success Looks Like: - After 30 Days: You've ramped up quickly, developed a deep understanding of our backend systems, and are actively contributing to high-impact feature development that improves the performance and reliability of our train systems. - After 60 Days: You've taken initiative in designing a scalable architecture for integrating

Distributed Software Engineer Bengaluru, Karnataka, India; Sunnyvale CA or Toronto Canada Cerebras Systems builds the world's largest AI chip, 56 times larger than GPUs. Our novel wafer-scale architecture provides the AI compute power of dozens of GPUs on a single chip, with the programming simplicity of a single device. This approach allows Cerebras to deliver industry-leading training and inference speeds and empowers machine learning users to effortlessly run large-scale ML applications, without the hassle of managing hundreds of GPUs or TPUs. Cerebras' current customers include top model labs, global enterprises, and cutting-edge AI-native startups. OpenAI recently announced a multi-year partnership with Cerebras , to deploy 750 megawatts of scale, transforming key workloads with ultra high-speed inference. Thanks to the groundbreaking wafer-scale architecture, Cerebras Inference offers the fastest Generative AI inference solution in the world, over 10 times faster than GPU-based hyperscale cloud inference services. This order of magnitude increase in speed is transforming the user experience of AI applications, unlocking real-time iteration and increasing intelligence via additional agentic computation. About The Role Cerebras Systems is a pioneer in large-scale AI Supercomputers. These multi-exaflop supercomputers are deployed in some of the biggest datacenters. These supercomputers are built using our Wafer-Scale Cluster technology - a cluster of several Wafer Scale Engine (WSE) chips. The Cluster engineering team is responsible for delivering software that are all-things related to cluster. Responsibilities - Automate bare-metal configuration of networking, OS, and application software in large clusters of Cerebras WSE, servers, and switches. - Additional push button

Senior Mechanical Engineer Los Angeles, CA Parallel Systems is pioneering autonomous battery-electric rail vehicles designed to transform freight transportation by shifting portions of the $900 billion U.S. trucking industry onto rail. Our innovative technology offers cleaner, safer, and more efficient logistics solutions. Join our dynamic team and help shape a smarter, greener future for global freight. Senior Mechanical Engineer Parallel Systems is seeking a Senior Mechanical Engineer with expertise in dynamics, simulation, and CAD design to help us design the next generation of our self-propelled rail vehicles. This role will focus on designing and analyzing mechanical systems for performance, safety, and durability. Ideal candidates will have experience in vehicle dynamics and structural analysis, with a preference for those who have worked in railway or road vehicle applications . Responsibilities: - Design and analyze vehicle structures, mechanisms, and actuated systems with a focus on dynamics, kinematics, and structural integrity . - Develop, optimize, and maintain CAD models for mechanical components and assemblies. - Conduct multibody dynamics simulations to assess system performance under real-world conditions. - Perform finite element analysis (FEA) for structural, fatigue, and modal performance. - Investigate and resolve mechanical failures to improve system reliability. - Support prototype development, testing, and validation of vehicle components as part of a multi-disciplinary team. Requirements: - 5+ years of experience in mechanical engineering with a focus on structures , dynamics, simulation, and machine design . - Strong proficiency in CAD software (SolidWorks, CATIA, Siemens NX, or similar). - Experience with multibody dynamics (MBD)

Full Stack Engineer, Web Presence and Platform N/A Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies-from the world's largest enterprises to the most ambitious startups-use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone's reach while doing the most important work of your career. About the team Web Presence and Platform (WPP) is organized into two pillars, each of which is grouped into pods that focus on the central tenets of Stripe's public mission. The Presence pillar creates industry-leading designs for Stripe's front door surfaces, educates customers about the power of our platform, and drives our business success. The Platform pillar builds the internal machinery that powers these surfaces, and is responsible for making our websites fast, stable, and easy to modify. WPP offers exciting opportunities to have a major impact on Stripe's success, as stripe.com is often a user's first impression of the company, and the vast majority of signups come via the website. We'll apply data-driven rigor to our curiosity, and we'll come up with clever ways to get insight into important questions. We'll have the leeway to test out-of-the-box ideas alongside incremental ones. We'll apply Stripe's users-first mentality both internally and externally, crafting tangible productivity and quality-of-life improvements for colleagues while maintaining and

Data Engineer - Multimodal Systems San Francisco, California, United States Zyphra is an artificial intelligence company based in San Francisco, California. The Role: As a Data Engineer - Multimodal Systems , you will be a core contributor to creating, collecting, and improving Zyphra's datasets and data pipelines across a variety of modalities. Your work will intersect with almost every team at Zyphra. You will be involved in collecting large-scale datasets and implementing and optimizing highly parallel data pipelines. You'll Work Across: - Large-scale data collection across a variety of modalities (text, audio, image) - Designing and working with highly efficient, parallelized data processing pipelines across modalities - Designing and running rigorous experimental ablations to demonstrate the impact of new data improvements What We're Looking For / Requirements: - Strong implementation and prototyping ability - Can take an idea from conception to experimentation quickly - The ability to work well with others in a high-paced research setting - Can rapidly learn new fields and are excited to implement new ideas - Excellent communication and collaboration skills, and can work effectively on both research and engineering implementation at scale. Qualifications / Additional Skills: - Experience collecting, handling, and processing large datasets - Experience with parallel Python programming frameworks such as Dask - Understanding of the state-of-the-art in dataset curation across modalities - A generally meticulous nature and a strong interest in actually looking at data and sanity checking things - Strong grasp of proper experimental methodology for running rigorous ablations and other

Senior Recruiter Los Angeles, CA Parallel Systems is pioneering autonomous battery-electric rail vehicles designed to transform freight transportation by shifting portions of the $900 billion U.S. trucking industry onto rail. Our innovative technology offers cleaner, safer, and more efficient logistics solutions. Join our dynamic team and help shape a smarter, greener future for global freight. Senior Recruiter Parallel Systems is building autonomous, battery-electric rail vehicles to modernize freight transportation. We are hiring a Senior Recruiter to help us build the team that will bring this technology into the real world. This role will sit on the Talent team and report to the Head of Talent. You will own full-cycle recruiting across technical and business-critical roles, with a heavy focus on sourcing exceptional candidates for engineering, hardware, software, manufacturing, operations, and go-to-market hiring. This is a hands-on recruiting role. We are looking for someone who can build pipeline from scratch, engage passive talent, partner tightly with hiring managers, and help improve how recruiting operates at Parallel. The right person is comfortable using modern recruiting tools, automation, and AI where appropriate to increase speed, consistency, candidate quality, and hiring manager visibility. Responsibilities: - Own full-cycle recruiting for assigned roles, from intake through offer close. - Drive outbound sourcing for priority searches, including target company mapping, candidate research, outreach, follow-ups, and pipeline conversion. - Build high-quality candidate pipelines through sourcing, referrals, events, networks, and targeted outreach campaigns. - Partner with hiring managers to define role requirements, calibrate on talent bar, build search strategies,

Senior Web Engineer New York, NY, United States, Remote About Polymarket Polymarket is the world's largest prediction market platform. We enable individuals to express views on real-world events by trading on outcomes across politics, economics, sports, culture, and current affairs. Built as a peer-to-peer marketplace with no centralized "house," Polymarket aggregates diverse opinions into transparent, market-based probabilities that reflect collective expectations about the future. We're growing fast - both in terms of volume ($21B traded in 2025) and adoption as an alternative news source. Our ambition is to become a ubiquitous beacon of truth in global media and we need your help adding fuel to the fire. About the Role Polymarket is looking for a Senior Web Engineer to own complex frontend features, improve reliability, and help us ship faster with confidence. You'll own major web surfaces end-to-end: from scoping and implementation through launch, monitoring, and production support. This is a high-ownership role at the intersection of frontend product development, backend systems, performance, and reliability. You should be comfortable shipping complicated React/Next.js features, debugging ambiguous production issues, and working across teams without needing hand-holding. We want someone who can move fast, make strong technical decisions, and help raise the quality bar for our frontend systems. What You'll Do - Own and ship complex features end-to-end. Build and launch web features across Polymarket's core product surfaces, making thoughtful tradeoffs between speed, quality, architecture, and long-term maintainability. - Collaborate across the stack. Work closely with backend engineers to design APIs, reason through

Software Development Engineer, RDS Platform - High Availability East Palo Alto, California, USA Do you think innovating for customers and providing solutions for scale, availability and durability, while learning from ever growing fleet of RDS deployments at Amazon Web Service (AWS) interesting? Amazon is breaking new ground and changing the rules for relational databases. At Amazon Web Services (AWS), we are the public cloud. AWS commands a majority of the world's public cloud traffic, serving customers at ultra large scale, and this volume is growing exponentially every day. At Amazon/AWS, we take databases to their limits. Due to our scale, we see issues that no other RDBMS customers see. We are creatively and disruptively solving some of the most complex database problems related to immense growth, scaling, leveraging the cloud, extremely high performance and high availability requirements. Do these types of challenges excite you? Do you want to part of the core group that's responsible for availability and durability of the world's largest fleet of relational databases on cloud ? If you're an engineer who want to be significant part of this core group, come on board! We are eager to brainstorm, mentor, and get software built together. We have challenging problems to solve in distributed systems, concurrency, high availability, durability, performance, languages, and performance engineering. We intend to be the world's best and most reliable database, built by an excellent team, all while having fun - come join us on the journey! About the team AWS values diverse experiences.

Software Engineer - Kernels Mountain View, CA What MatX Is Building MatX is on a mission to be the compute platform for AGI. We are developing vertically integrated full-stack solutions from silicon to systems including hardware and software to train and run the largest ML workloads for AGI. We primarily use the Rust programming language . What You'll Do Here - Design and optimize kernels that interface directly with our hardware - Work in partnership with our ML Research and Hardware Engineering teams - Provide expertise and guidance on hardware architecture from a programmer's perspective, ensuring seamless integration with the software stack Who You Are - Bachelor of Computer Science or equivalent degree - Experience optimizing software for specialized hardware, employing techniques such as parallelism, SIMD programming, C, assembly-level optimization, or GPU/CUDA programming - Language: at least one of assembly, C++, C, Zig, or Rust - This is a hybrid role that will require you to work from our Mountain View, CA office 3 days a week on Tuesday through Thursday Bonus Points If You Have - Experience implementing kernels for ML models such as Transformers - Experience using and implementing distributed parallelism techniques such as AllReduce, AllToAll, data parallelism, tensor parallelism. - Familiarity with how compilers work Compensation The US base salary for this full-time position is determined based on a variety of factors including role, experience, location, job related skills, and relevant education and training. Career length is only a guideline for compensation. - Early Career - $120,000

Software Development Engineer - Neptune, The AWS In-Memory Databases Console Team Dublin, IRL The In-Memory and Emerging DB organization drives innovation across Amazon's managed database services, owning and evolving the management consoles that serve over 295,000 monthly active users. Our console team spans five distinct database services - ElastiCache, MemoryDB, DocumentDB, Timestream, and Neptune - and this role is dedicated to the Neptune Console Amazon Neptune is a fast, scalable, fully-managed graph database service used by thousands of customers worldwide. Neptune powers a rich variety of graph use cases including recommendation engines, fraud prevention, knowledge graphs, and drug discovery. The service supports both the Resource Description Framework (RDF) and property graph data models, along with their respective query languages. This is a unique opportunity to shape the customer-facing console experience for one of the fastest-growing graph database services in the industry. To learn more about Amazon Neptune visit: https://aws.amazon.com/neptune/ Our team understands and values work life balance. Most days, our entire team is co-located in the Dublin office, but support occasional remote work if needed. We generally keep core in-office hours from 10am to 4pm and provide flexibility for people to structure their working hours around them. The role involves day time on-call responsibilities, typically once every 2-3 months. We don't like to get paged in the middle of the night or on weekends; so we investigate operational gaps on a weekly basis, proactively root-cause issues and fix them for good. Our team has a mixture of engineers from diverse

IT Manager Los Angeles, CA Parallel Systems is pioneering autonomous battery-electric rail vehicles designed to transform freight transportation by shifting portions of the $900 billion U.S. trucking industry onto rail. Our innovative technology offers cleaner, safer, and more efficient logistics solutions. Join our dynamic team and help shape a smarter, greener future for global freight. IT Manager Parallel Systems is seeking an experienced, hands-on IT Manager to own and scale the company's internal IT function. This role is responsible for both strategy and execution. You will design, implement, and operate the IT systems that support a fast-growing engineering and operations organization. You will report into the engineering organization and work primarily on-site at our California offices. This is not a helpdesk-only role. You will be the primary owner of corporate IT, expected to make decisions, drive improvements, and personally execute where needed. Responsibilities - Own the end-to-end IT strategy and operating model, ensuring infrastructure, tooling, and security scale with company growth and business priorities - Act as the primary IT owner for the company, serving as the main technical partner to leadership and department heads - Design, maintain, and continuously improve corporate IT infrastructure, including networking, conference room systems, end-user devices, and cloud-based assets - Lead network architecture and long-term infrastructure improvement projects across offices and facilities - Manage IT budget, forecast spend, and drive cost efficiency across hardware, SaaS tools, and managed service providers - Own vendor relationships and contract negotiations, including SaaS renewals, hardware procurement, and external IT