> Markdown version of [/jobs/ext/3011973-senior-software-engineer-full-stack-nyc-or-sf](https://www.wearedevelopers.com/jobs/ext/3011973-senior-software-engineer-full-stack-nyc-or-sf). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer - Full Stack [NYC or SF] - **Company:** Concurrence Corp. - **Location:** San Francisco, CA, United States - **Experience:** Expert - **Salary:** $220,000.0 - $260,000.0 - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, WebSocket - **Published:** September 20, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=afbac630984b41d4 ## About the Role * You've shipped production full-stack features end to end and owned the outcome * You're strong across the stack, from data modeling and APIs to modern front-end work * You sweat correctness and reliability, especially where sensitive data is involved * You have good product instincts and care how things feel to use * You're low ego, direct, and hold yourself to a high bar * You can work on site in New York City or San Francisco, * Experience in a regulated or critical, low margin for error domain (healthcare, finance, legal) * Experience and familiarity with WebSockets, SSE client and server implementations * Background with design systems or complex UI state * Experience with production AI or ML products ## Description * Building real-time interfaces for clinical oversight of live agent conversations * Owning a feature end to end, from schema to API to UI * Designing tools that let non-engineers shape agent behavior safely * Making healthcare data explorable through natural language * Hardening the reliability and performance of applications clinicians depend on * Working with designers, clinicians, and customers to get the details right, * Daily catered lunch and dinner * Mental health support and wellness coaching * Flexible wellness stipend for fitness, therapy, or personal growth Growth & Development * Annual learning budget for courses, books, or conferences * Conference attendance budget for professional development * Annual team offsite * Academic collaboration opportunities * Unlimited PTO ## Related Videos - [Minimal infrastructure for Real‑Time Phone Agents: transcripts in, responses out](https://www.wearedevelopers.com/videos/1736-minimal-infrastructure-for-real-time-phone-agents-transcripts-in-responses-out) - [Edit Your Future: Queerverse Radical AI](https://www.wearedevelopers.com/videos/909-edit-your-future-queerverse-radical-ai) - [Rest API Antipatterns](https://www.wearedevelopers.com/videos/100208-rest-api-antipatterns) - [Build and Deploy a Fullstack App with Open Source Tooling](https://www.wearedevelopers.com/videos/775-build-and-deploy-a-fullstack-app-with-open-source-tooling) - [REST in Peace? What does the API protocol of the future look like? Or do we have it already?](https://www.wearedevelopers.com/videos/1683-rest-in-peace-what-does-the-api-protocol-of-the-future-look-like-or-do-we-have-it-already) - [Leveraging Server-Sent Events (SSE) for Efficient Data Streaming in UI Development](https://www.wearedevelopers.com/videos/905-leveraging-server-sent-events-sse-for-efficient-data-streaming-in-ui-development) ## Related Articles - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [5 Reasons Why Attending Conferences in 2026 Matters More Than You Think](https://www.wearedevelopers.com/magazine/692-5-reasons-why-attending-conferences-in-2026-matters-more-than-you-think) - [Why Attend a Developer Event in 2026?](https://www.wearedevelopers.com/magazine/688-why-attend-a-developer-event-in-2026) - [Dev Digest 132 - Binging WADFlix?](https://www.wearedevelopers.com/magazine/473-dev-digest-132-binging-wadflix)