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Nodejs Backend Developer Jobs in California (NOW HIRING)

eTouch Systems

Full Stack Web Developer

San Jose, CA · On-site

Our Direct Client in San Jose is looking for Full Stack Developer with Node.js backend and React.js front end. Requirement: Full Stack Developer Strong Java Programming Skills. Hands on needed ...

Chargie

Senior Data & Backend Engineer

Culver City, CA · On-site

$125K - $150K/yr

Step into Node.js backend development and production support as needed - contributing to internal GraphQL APIs and RESTful/event-driven services alongside the core engineering team. * Design and ...

Sparktek

Backend Developer

San Jose, CA · On-site

Ability to work with existing Node.js services to resolve bugs or build new features * Competent in ... patterns, programming paradigms, and best practices for Node.js * Experience with TypeScript

Sparktek

Backend Developer

San Jose, CA · On-site

Ability to work with existing Node.js services to resolve bugs or build new features * Competent in ... patterns, programming paradigms, and best practices for Node.js * Experience with TypeScript

eTouch Systems

Full Stack Web Developer

San Jose, CA · On-site

Our Direct Client in San Jose is looking for Full Stack Developer with Node.js backend and React.js front end. Requirement: Full Stack Developer Strong Java Programming Skills. Hands on needed ...

krg technology inc

Java Backend Developer

San Jose, CA · On-site

$59.25 - $76.75/hr

Ideal candidate should have excellent working knowledge in Java back end and good understanding of ... Knowledge of JavaScript, HTML 5, CSS 3, Jquery, AngularJS, Bootstrap and Node.js is a plus Have ...

KRG Technology

Java Backend Developer

San Jose, CA · On-site

$59.25 - $76.75/hr

... Node.js is a plus · Have experience using tools - Git, TFS, Stash, JIRA, Jenkins
Should be able to develop, debug code, trouble shoot production issues & apply code fixes.
Review code and unit ...

Jobsbridge

Backend NodeJS Developer

Sunnyvale, CA · On-site

$60.25 - $77.75/hr

... programming in Javascript using current design patterns/practices, especially as it applies to building flexible NodeJS and AngularJS applications Strong on Back-end development Deep hands-on ...

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Infographic showing various Nodejs Backend Developer job openings in California as of August 2026, with employment types broken down into 50% Full Time, and 50% Contract. Highlights an 94% In-person, and 6% Remote job distribution.

Senior Backend Engineer

The French Sourcer

San Francisco, CA • On-site

$170 - $230/hr

Other

Posted 20 days ago

Job description

Senior Backend Engineer — San Francisco

San Francisco, CA, United States · Permanent · On-site (5 days a week, flexible to 3 for exceptional profiles)

Own backend systems where a bug doesn't just break a feature, it touches real money moving through real credit decisions.

What you'd actually work on

  • Building and owning production backend systems that power core payments and credit workflows, using TypeScript and Node.js end to end
  • Designing APIs, services, and data contracts that other teams (data science, risk, product) depend on daily, where "good enough" stops being good enough once real transactions are on the line
  • Building internal tools that let non-engineering teams review decisions and trace data lineage without pinging an engineer every time something looks off
  • Taking ambiguous, loosely defined problems and turning them into shipped, production-grade slices rather than waiting for a fully scoped ticket
  • Improving reliability and latency on systems where downtime or a bad edge case has a direct, visible cost, not just a Slack complaint
  • Working cross-functionally with risk and data science to define what data actually needs to look like before it hits a decisioning model
  • Owning the full lifecycle from architecture decisions through to production support, not handing off after the first deploy

Where it gets technically interesting

  • A TypeScript and Node.js backend where correctness isn't optional. This stack directly powers payment and credit decisions, so tradeoffs get scrutinized differently than in a typical SaaS product
  • Serverless architecture on AWS (Lambdas), which means thinking hard about cold starts, statelessness, and failure isolation rather than defaulting to a monolith
  • A PostgreSQL data layer feeding into Snowflake for downstream analytics and modeling, so schema decisions have consequences well past your own service
  • Designing systems and data contracts from close to zero: the infrastructure is still being defined, so you'll shape patterns other engineers will follow, not just extend someone else's
  • Close, regular collaboration with a data science team turning your APIs and data pipelines into production, ML-driven decisions, which raises the bar on what "clean data" actually means
  • Real production stakes from day one: the systems you touch are already live with paying enterprise customers, not waiting on a future launch

What we're looking for

  • 5 to 12 years of backend engineering experience, including real production ownership, not just feature work inside someone else's system
  • Strong hands‑on experience with TypeScript in production, plus solid SQL and relational database skills
  • Direct experience in payments, fintech, or credit and risk systems, ideally at a fast‑growing, VC‑backed company
  • Comfort with AWS, serverless architecture (Lambdas), and designing for reliability at scale
  • A track record of owning a project or product area end to end: defining the problem, proposing the approach, shipping it, and iterating
  • Experience collaborating across risk, data science, and engineering, not just within a single team's boundaries
  • Bonus: Python proficiency and experience with data pipelines, ETL, or Snowflake

The companyAn AI-native fintech company building credit and payments infrastructure for B2B commerce, backed by top‑tier venture investors with $250M+ raised to date. A lean engineering team of around 30 to 40 people, already powering payment and credit workflows for enterprise customers in live production, not in beta. This role sits close to the founding team and works directly with risk and data science on some of the company's highest-stakes systems.

Compensation: $170,000 to $230,000 base, plus competitive equity

Languages: English (fluent, professional)

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