Senior Software Development Engineer (Flexible/Remote working)

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Senior Software Engineer – AI-Enabled Engineering
Mark43’s mission is to empower communities and their governments with new technologies that improve the safety and quality of life for all. We build powerful, scalable, and elegant software that sets a new standard for the tools upon which our first responders rely. Our users are diverse, and we are therefore committed to embracing diversity of thought and experience within our team.
Seattle, and the California Highway Patrol—and we’ve recently expanded into the UK with our first customer overseas.
Mark43 is building a next-generation AI-augmented engineering team . This is a foundational opportunity to help rethink how software is designed, developed, and delivered using intelligent agentic or related tools.

We’re looking for a Senior Software Engineer to help lead our AI-enabled engineering initiative. You’ll work at the frontier of AI and software development, experimenting with agentic workflows and shaping how AI tools are integrated into every layer of our engineering stack.
This isn’t just about using AI to autocomplete code—it’s about designing and orchestrating systems of AI agents that can plan, write, review, test, and deploy software collaboratively. In essence, you’ll play a role akin to a tech lead for a team of intelligent coding agents .
Design multi-agent systems with coding-focused agents (e.g., Write the prompts, logic, and scaffolding that guide each agent’s behavior

~ Evaluate and refine agents’ output, performance, collaboration patterns, and feedback loops

Prototyped a new coding assistant workflow using open-source LLMs and internal knowledge bases

• Collaborated with a cross-functional team to build a fast, AI-powered interface for internal tooling
• Helped define the evaluation framework for AI contributions—accuracy, speed, and impact
• Mentored a teammate on combining TypeScript and AI tools to accelerate UI prototyping
• Explored best practices for safely and securely integrating generative AI into a public sector codebase

We’re looking for an experienced software engineer who is eager to build smarter systems by pairing technical expertise with emerging AI tools. You don’t need to be an AI researcher—but you do need hands-on experience applying generative AI tools to real-world development workflows.
5+ years of professional software engineering experience

• Java, TypeScript + React, and MySQL
• Extensive applied experience with AI-assisted development tooling—whether it’s Cursor, Windsurf, LLM APIs, codegen platforms, vector databases, agentic frameworks like LangChain, or custom-built systems
• A strong product mindset and interest in building for real-world impact
• Comfort operating in ambiguity and helping define best practices in a rapidly evolving space

We’re flexible on which tools you’ve used—we care more about your ability to learn, adapt, and creatively apply AI in practical settings than checking a specific tech box.
You care about building tech that serves the public good

~ Before applying to a remote role, please ensure that you are able to perform the position in one of the states listed above. State locations and specifics are subject to change as our hiring requirements shift.
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Mark43 is committed to the full inclusion of all qualified individuals. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex disability, age, sexual orientation, gender identity, national origin, veteran status, or genetic information. As part of this commitment, we will ensure that persons with disabilities are provided reasonable accommodations. If reasonable accommodation is needed, please email View email address on mark43.com requesting the accommodation.