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30 junior frontend developer jobs at 22 companies in Vacaville, CA

2mo
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Frontend Engineer
San Francisco, California, United States
$150k-$200k/yr OnsiteFull Time
Clera
Clera: AI talent agent matching professionals with high-growth startup roles
2+ YOE2+ years software development; experience defining frontend architecture; hands-on Kubernetes; APIs/backend experience; background in systems or distributed systems.
Kubernetes, Grafana, WebSockets, GitOps
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1mo
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Frontend Developer (React) Junior/Mid
San Francisco, California, United States
RemoteFull Time
CareerSwift
CareerSwift: AI-powered recruitment and job search automation platform
3+ YOERequires 3+ years with React, JavaScript/TypeScript, modern CSS frameworks, and REST/GraphQL API integration; experience optimizing UI performance and collaborating with designers/backend engineers.
React, JavaScript, TypeScript, REST, GraphQL, CSS
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Senior Frontend Engineer
San Francisco or New York City
$150k-$250k/yr OnsiteFull Time
Halliday
Halliday: Unified crypto payment infrastructure and agentic workflow protocol for blockchain.
2+ YOE2+ years building production frontends with React and TypeScript, strong frontend fundamentals (state management, API integration, responsive design, performance), product mindset, collaboration skills, and willingness to be based in SF Bay Area or NYC.
React, TypeScript, Workflow Protocol, ethers.js, viem, wagmi
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2mo
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Front-End Engineer
Oakland, California, United States
$90k-$120k/yr HybridFull Time
Dutch
Dutch: Providing virtual veterinary consultations and prescription services for pets.
1+ YOEBachelor's degree (any) with 1 year front-end experience; strong JS (ES6+), TypeScript, CSS; Vue.js; Shopify; REST/GraphQL; Git; HTML.
JavaScript, TypeScript, CSS, Vue.js, Shopify, REST API, GraphQL, Git, HTML
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2mo
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Software Engineer, Front-End
San Francisco or Seattle
$164k-$284k/yr HybridFull Time
Superhuman
Superhuman: An AI-native productivity platform for email, writing, and collaboration.
7+ years front-end experience with TypeScript/JavaScript, React, HTML/CSS; strong UI/UX focus; experience with AI features; familiarity with CI/CD; ability to work independently; mentor junior engineers.
TypeScript, JavaScript, HTML, CSS, React
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Software Engineer | Frontend
Lisbon or San Francisco or Sunnyvale or Raleigh or Seattle or Boston or London or Bangalore or Dublin or Kyiv or Portugal
OnsiteFull Time
SingleStore
SingleStore: Provides a distributed SQL database for real-time analytics.
2+ YOEFrontend engineer with 2+ years on a SaaS product; strong experience with React and TypeScript, browser application architecture, and familiarity with backend languages (Golang, Python, Rust) is a plus.
React, TypeScript, Golang, Python, Rust, SQL
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1w
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Retail Front End Supervisor - Full-Time
Pinole, California, United States
$19-$21/hr OnsiteFull Time
Burlington Stores
Burlington StoresNYSE: BURL: Off-price retailer of apparel, footwear, and home goods.
1+ YOEMinimum 1 year supervisory retail experience, strong interpersonal skills, ability to lift 40+ lbs, work nights/weekends/holidays, coach and develop associates, ensure store operations and asset protection.
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Software Engineer, Product Experiences
San Francisco or Washington
$160k-$220k/yr OnsiteFull Time
Peregrine
Peregrine: Data integration and analytics platform for public safety agencies.
2+ YOE2+ years building production user-facing software; strong React/TypeScript frontend skills; full-stack experience; degree in CS or equivalent; experience with distributed systems and product-focused development.
React, Redux, TypeScript, Mapbox, Python, Django, Celery, Airflow, Kafka, PostgreSQL, Elasticsearch, Bedrock, Sagemaker, AWS, Pulumi, Terraform, Kubernetes
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1mo
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Product Engineer
San Francisco, California, United States
OnsiteFull Time
Goodfire
Goodfire: Developing tools to interpret and steer artificial intelligence systems.
2+ YOE2+ years building production software; full‑stack depth in frontend, backend, systems, or infrastructure; strong product judgment; collaboration with research, design, and customer teams; focus on model interpretability.
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2w
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Software Engineer
United States or San Francisco
$96k-$169k/yr HybridFull Time
Ethos
EthosNasdaq: LIFE: Provides an online platform for instant life insurance coverage.
2+ YOE2-5 years software engineering experience; full-stack JavaScript/TypeScript, Node or Python; frontend (HTML,CSS,React); API design, security, testing, and feature-flag/A-B experience.
Javascript, Typescript, Node, Python, Optimizely, HTML, CSS, React, Claude Code, Cursor, Copilot, Iterable, Twilio, Salesforce, Regal, Webpack
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6d
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Software Engineer, Agents
San Francisco, California, United States
$259k-$351k/yr HybridFull Time
Benchling: Cloud platform for biotechnology research and development.
2+ YOE2+ years professional software engineering experience; backend (Python) and frontend (React) experience; product sense; familiarity with LLMs and AI; customer collaboration and rapid iteration.
Python, React, Benchling, LLMs
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1mo
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Full-Stack Software Engineer
United States or San Francisco
RemoteFull Time
Concentrate AI
Concentrate AI: Provides an AI gateway for managing LLM model access.
2+ YOE2+ years experience; strong TypeScript and Node.js skills; frontend experience with React/Next.js; PostgreSQL schema and query knowledge; Docker, CI/CD, JWT/OAuth, testing discipline; familiarity with Fastify and modern frontend tooling.
TypeScript, Node.js, React, Next.js, Tailwind, Fastify, PostgreSQL, Docker, CI/CD, JWT, OAuth, Kysely, Drizzle, Redis, Nginx, Turborepo, Nx, OpenAI
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1mo
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Software Engineer, Product
San Francisco or New York City
$141k-$225k/yr HybridFull Time
Pave
Pave: Cloud-based software for managing and benchmarking employee compensation.
2+ YOE2+ years engineering experience (full-stack, backend, or frontend); experience with TypeScript and Node.js preferred; strong product instincts, collaboration, and execution focus; B2B SaaS experience a plus.
TypeScript, Node.js
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2mo
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Software Engineer - Product (New Grad)
San Francisco, California, United States
$130k-$150k/yr OnsiteFull Time
Julius
Julius: Conversational AI for automated data analysis and visualization.
Experience with React, Next.js, Tailwind CSS, Python; shipped production code; strong frontend and backend understanding; live projects.
React, Next.js, Tailwind CSS, Python
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1w
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Software Engineer (Implementation)
San Francisco, California, United States
$180k-$225k/yr OnsiteFull Time
Quanta
Quanta: AI-powered accounting platform for real-time financial data
2+ YOE2+ years software engineering experience, strong backend and frontend fundamentals, project management skills, fast learner of accounting concepts, strong communication; willing to work in-person in San Francisco.
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1mo
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Founding Design Engineer
San Francisco, California, United States
$150k-$250k/yr OnsiteFull Time
Hikinex
Hikinex: Provider of outsourced sales and administrative business solutions.
1+ YOE1+ year experience (1–5 years) shipping frontend React/TypeScript, portfolio or product with real users, experience at early-stage startups, familiarity with design systems, and a Design/Arts/CS degree.
React, TypeScript, Figma, Tailwind CSS, Next.js
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2mo
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Full Stack Product Engineer, AI Enabled Products
San Francisco or New York City or Colorado or United States
$130k-$175k/yr RemoteFull Time
Solv Health
Solv Health: Connects patients with same-day doctor appointments and urgent care.
2+ YOE2+ years building and maintaining production web applications; comfortable across frontend and backend; experience with React, Python, and SQL/Postgres; experience using AI-assisted development tools; strong testing, debugging, and collaboration skills.
React, Remix, Python, FastAPI, Postgres, SQL
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1w
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Software Engineer Intern - Enterprise Systems (Fall 2026)
San Francisco, California, United States
$29/hr OnsiteInternship
Astranis
Astranis: Builds and operates small geostationary communications satellites.
Currently pursuing a B.S. or M.S. in CS/ECE/CE, experience with Python, ability to design/write/test software; embedded, frontend, and devops experience are a plus.
Python
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2mo
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Software Engineer Intern
San Francisco, California, United States
OnsiteFull Time
Phonely
Phonely: AI-powered voice platform for automated customer phone interactions.
Pursuing or recently completed degree in Computer Science or related field; experience with JavaScript/TypeScript and modern frontend frameworks; familiarity with Next.js; strong problem-solving and debugging skills; ability to work with customers and teammates; eager to learn quickly.
JavaScript, TypeScript, React, Next.js, Python, AWS, GCP, Kubernetes, Redis, Datadog
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2w
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Design Engineer Intern
San Francisco, California, United States
$8k-$10k/mo OnsiteInternship
Gumloop
Gumloop: Platform for building AI automated workflows without code.
Final-year student in design, CS, or related field with hands-on TypeScript and React experience, portfolio, product intuition, and exposure to design systems and frontend development.
TypeScript, React, Tailwind CSS, Next.js, TanStack Query, Figma
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