Senior Backend JavaScript Developer role based in San Francisco. The posting provides no substantive details about responsibilities or requirements.
Description
We’re looking for exceptional and experienced Senior Backend JavaScript Developers to join our Unblocker team, with deep expertise in Node.js and building production-grade backend services.
In this role, you will take end-to-end ownership of product and feature development, building SaaS applications and services in a microservices architecture, using modern technologies in a fast-paced and professional environment.
Tech Stack:
Node.js, JavaScript, MongoDB, Kubernetes, Redis (including Redis Streams)
*Hybrid position based in San Francisco*
Responsibilities- End-to-end feature development, from design and implementation to production rollout and ongoing improvements.
- Build and operate backend services with a strong focus on scalability, reliability, and performance in a microservices environment.
- Participate in system design and architecture planning, and contribute to technical decisions across the team.
- Work with asynchronous, message-driven components using Redis Streams, including debugging, tuning, and ensuring resilient processing.
- Write high-quality, maintainable code with appropriate test coverage; participate actively in code reviews.
- Collaborate effectively with teammates and cross-functional stakeholders to deliver high-impact outcomes.
- Continuously learn, adapt, and stay up-to-date with best practices and evolving technologies.
- 5+ years of hands-on software engineering experience, including 3+ years focused on backend JavaScript / Node.js development.
- Proven experience building and maintaining SaaS applications and/or production backend services.
- Experience working in a microservices architecture (service boundaries, APIs, reliability patterns).
- Hands-on experience with MongoDB and Redis (including practical experience with Redis Streams or similar pub/sub/stream processing).
- Familiarity with Kubernetes and containerized deployments.
- Good understanding of system design fundamentals: APIs, data modeling, performance, scalability, and reliability.
- Fast learner, able to work both independently and as a team player.
- Strong written and verbal communication skills.
Nice to Have:
- Experience with AWS and cloud-based production environments.
- Experience with observability tooling (logging/metrics/tracing) and incident response.
- Experience with scraping, browser automation, Playwright, Puppeteer, or Selenium.
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