Jobs Companies Hamster Senior Javascript Engineer

About this Senior Javascript Engineer role at Hamster

Hamster · Hybrid · San Francisco

You will need a strong background in modern JavaScript frameworks and a deep understanding of full-stack development. You will be instrumental in designing, developing, and maintaining scalable and high-performance applications, with a particular focus on integrating cutting-edge AI capabilities.

Responsibilities

  • Lead the design, development, and deployment of complex web applications using Next.js and NestJS.

  • Develop robust and efficient backend services with Node.js, interacting with PostgreSQL databases.

  • Implement and maintain real-time messaging solutions.

  • Apply expertise in AI prompt engineering to optimize interactions with large language models.

  • Contribute to the training and fine-tuning of machine learning models.

  • Develop and integrate features related to embedding, chunking, and Retrieval Augmented Generation (RAG).

  • Write clean, maintainable, and well-documented code in TypeScript.

  • Collaborate closely with product managers, designers, and other engineers to define, design, and ship new features.

  • Mentor junior engineers and contribute to best practices within the team.

  • Participate in code reviews to ensure code quality and adherence to standards.

Required Skills and Qualifications

  • Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.

  • 5+ years of experience as a JavaScript Engineer, with a focus on full-stack development.

  • Proficiency in TypeScript.

  • Strong experience with PostgreSQL.

  • Extensive experience with Next.js for front-end development.

  • Demonstrated experience with NestJS for backend development.

  • Proven experience with AI prompt engineering.

  • Familiarity with model training concepts and practices.

  • Experience implementing and managing real-time messaging systems.

  • Understanding and practical application of embedding and chunking techniques.

  • Experience with Retrieval Augmented Generation (RAG) implementation.

  • Solid understanding of software design principles, data structures, and algorithms.

  • Excellent problem-solving skills and attention to detail.

  • Strong communication and interpersonal skills.

Preferred Qualifications

  • Experience with cloud platforms (AWS, Azure, GCP).

  • Familiarity with containerization technologies (Docker, Kubernetes).

  • Experience with testing frameworks (e.g., Jest, React Testing Library).

Ready to apply to Hamster?
Apply to Hamster

Similar jobs

Mercury
Senior Software Engineer - Frontend Developer Experience
Mercury
⚡ Apply early San Francisco, CA, New York, N... · location restricted $200,700–$250,900
● New 👁 Seen ✓ Applied 2w ago
Sentry
Senior Software Engineer (Frameworks), JavaScript SDK
Sentry
⚡ Apply early San Francisco, California Hybrid $155,000–$400,000
● New 👁 Seen ✓ Applied 3w ago
Sentry
Senior Software Engineer (Node), JavaScript SDK
Sentry
⚡ Apply early San Francisco, California Hybrid $155,000–$400,000
● New 👁 Seen ✓ Applied 3w ago
LangChain
JavaScript Engineer (Open Source Team)
LangChain
⚡ Apply early San Francisco, CA Onsite $160,000–$240,000
● New 👁 Seen ✓ Applied 4w ago
Air Apps
Frontend Web Developer
Air Apps
⚡ Apply early San Francisco Onsite $99,000–$170,000
● New 👁 Seen ✓ Applied 4w ago
Databento
Software Engineer (TypeScript/JavaScript)
Databento
⚡ Apply early Remote / Boston / Salt Lake Ci... · location restricted
● New 👁 Seen ✓ Applied 1mo ago
YL
Polyglot Engineer (JS/Python/Go)
YLD
⚡ Apply early UK Onsite
● New 👁 Seen ✓ Applied 1d ago
Xsolla
Frontend developer
Xsolla
⚡ Apply early Russia · location restricted
● New 👁 Seen ✓ Applied 1d ago
Plain Concepts
Senior Frontend Developer
Plain Concepts
⚡ Apply early Portugal · location restricted
● New 👁 Seen ✓ Applied 1d ago

Sign up for suggestions tailored to the jobs you open and the searches you save.

More jobs at Hamster

See all jobs at Hamster →

Apply now
🤖

Whoa — hold up

JobsRadar was built for real people having a rough time in their job search — not for automated requests. You're clicking way too fast and you're now temporarily blocked.

Come back later. If you're genuinely job hunting, we've got your back — just act like a human.

Catch your next role the second it’s posted.

Create a free account and we’ll watch the boards for you — the instant a job matches your search, it lands in your inbox or Telegram. No digging, no refreshing.

Create free account

Free forever · takes 30 seconds · already have one?

Get an edge on your job hunt.

Join our Telegram channel for the stuff that helps you land the role — salary benchmarks, the weekly market pulse, and new-feature drops. No spam, just signal.

Join the channel — it's free