Senior Software Engineer - Integrations

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About this role

Senior Software Engineer - Integrations Manchester Applicants must be authorized to work for any employer in the country in which the role is being hired. We are unable to sponsor or take over sponsorship of an employment visa at this time. About Mark43 Mark43 empowers communities and their governments with technology that improves safety and quality of life. We build modern, resilient software that first responders and public safety agencies depend on in their most critical moments. Role Overview We are seeking an experienced Senior Software Engineer - Integrations who will take technical ownership of building and scaling integrations between Mark43's core platform and mission‑critical third‑party systems. You'll lead the design, development, and implementation of robust APIs, data pipelines, and messaging layers, ensuring seamless operational data flow for emergency dispatch and response systems. This is a hybrid role requiring at least three days per week in our Manchester office to support strong team collaboration. What You'll Do - Lead full lifecycle development of integrations that connect the Mark43 platform with external systems such as 911 call centers, state databases, evidence systems, and other key services. - Drive architectural decisions and ensure scalable, maintainable solutions across REST APIs, message queues, and event‑driven workflows. - Collaborate closely with Product, Engineering, and partner technical teams to define reliable API contracts and integration patterns. - Mentor and guide more junior engineers on the team, elevate coding standards, and lead code reviews. - Contribute to integration testing strategies, observability, and dashboards to monitor operational data

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