Senior Software Development Engineer (Full Stack)

About the role

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Development Engineer (Full Stack) based in the United States.

As a Senior Software Development Engineer, you will help build and evolve scalable infrastructure powering real-time voice and messaging experiences. You will take ownership of key platform components, contributing across frontend applications and backend services. Working in a collaborative, remote-first engineering environment, you will influence architectural decisions and drive high-quality software delivery. You will also help strengthen development practices, including the effective and responsible use of AI-assisted engineering tools. Through technical leadership, mentorship, and hands-on problem-solving, you will contribute to platform reliability, performance, and long-term maintainability. This is an opportunity to make a meaningful impact within a small team where engineering contributions directly shape the product.

Accountabilities You will lead the development and continuous improvement of full-stack platform capabilities, taking responsibility for technical quality and reliable delivery from initial design through production.

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Design, build, and maintain full-stack functionality across frontend applications and backend API services.

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Own features and systems throughout their lifecycle, including technical design, implementation, release, production support, and incident response.

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Lead architecture discussions and make pragmatic technical decisions that balance delivery speed, reliability, and maintainability.

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Integrate AI-assisted development tools into daily workflows to accelerate implementation, testing, and debugging while maintaining code correctness and quality.

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Help establish safe practices and review standards for AI-generated code.

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Mentor engineers through code reviews, pair programming, and constructive design feedback.

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Collaborate with product owners and QA teams to scope, prioritize, and deliver performant, maintainable software.

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Improve technical planning, deployment pipelines, development tooling, monitoring, and debugging capabilities.

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Promote strong testing practices, including unit and integration testing.

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Participate in on-call rotations, lead incident response when required, and ensure postmortem actions are followed through.

Requirements

The ideal candidate combines strong full-stack engineering expertise with experience owning production systems, guiding technical decisions, and working collaboratively in a remote environment.

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5+ years of professional software development experience, including ownership of production systems.