Senior Software Engineer, Full-Stack and AI Systems

2 Days Old

Role Overview We are seeking a Senior Software Engineer to architect and scale our platform-level agentic AI systems. This role combines full-stack engineering excellence with deep expertise in LLM-powered experiences. You’ll design, implement, and optimize core components across frontend, backend, and model integrations, while driving engineering direction in close collaboration with our co-founders. Your work will directly shape the reliability, speed, and cohesion of company’s multi-agent ecosystem. Key Responsibilities
Architect and implement cross-agent systems that power core platform experiences. Build and scale full-stack product components using TypeScript/React and Python services. Integrate LLMs into production workflows with strong contracts, observability, and test coverage. Develop shared UI components and typed SDKs to unify cross-agent experiences. Lead engineering direction, collaborating with founders and cross-functional stakeholders.
Requirements
Senior-level full-stack experience in React, TypeScript, and Python. Proven ability to design, ship, and scale LLM-powered applications. Expertise in API design, streaming, and CI/CD pipelines. Strong cloud infrastructure background (AWS, GCP, or Azure). Track record of building reliable systems with measurable performance and error budgets.
Nice-to-Have
Experience with WebRTC or audio-aware UI design. Hands‑on work with agentic AI frameworks. History of creating design tokens, SDKs, or cross‑agent platforms.
First-Month Focus
Audit current cross-agent flows for UI/UX cohesion. Implement shared components and typed contracts for reliability. Establish instrumentation for frontend performance and model round‑trip tracing.
Success OKRs (90 Days)
Deliver end-to-end tested, production‑grade agentic workflows with Launch cross‑agent design system and SDK used by at least 2 internal teams. Establish weekly “deploy and measure” cadence with performance metrics and error budgets.
Culture Fit
Persistent, driven problem solver Willing to push back on leadership to defend quality/timelines Thrives in high‑ambiguity, fast‑paced startup environments
About Us 👏 Team from OpenAI, DeepMind, NASA, GoogleX, Tesla, and 2 physicians: 6 exits, 2 IPOs.🔥 Our model outperforms Claude, Gemini, and GPT‑4.5 on clinical benchmarks.📈 400+ healthcare orgs signed in 16 months.⚡️ $25M raised from YC, Amity Ventures, Sequoia scouts, and more.🌎 $1T+ market opportunity. We’re going after all of it. Why Join Us? 🔥 Shape the Future of Healthcare: Build category‑defining partnerships that enable doctors to focus on saving lives.📈 Early‑Stage Impact: Join early and play a critical role in shaping our partnership roadmap and overall company growth.🌎 Remote‑First Culture: Work with a talented, mission‑driven team in a flexible, remote environment.💰 Competitive Compensation: Enjoy a competitive salary, equity, and the opportunity to make a real difference.🏆 Solve Scalability Challenges: Tackle complex challenges in a rapidly growing company, driving impactful change in healthcare. #J-18808-Ljbffr
Location:
United Kingdom
Job Type:
FullTime