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Typescript React Developer Junior Jobs in California

8VC

Product Engineer - Thorin

San Francisco, CA · On-site

We need someone who can own large pieces of it end to end. • You should be a strong frontend engineer (TypeScript, React) who ships fast and writes clean code. • You should have real experience ...

Supplied Talent

Senior Full Stack Engineer

Sunnyvale, CA · On-site

$180 - $240/hr

Write production‑grade TypeScript/React/Node.js -- first PR to production in week one * Work cross-functionally with product and forward-deployed engineering teams * Join customer calls to demo ...

Replo

Founding Engineer

San Francisco, CA · On-site

$140K - $500K/yr

About the role Hiring a full-stack/founding engineers to join our team and focused on product ... Is proficient in Typescript/React/Node * Uses Cursor/Claude Code to accelerate their work * Has ...

1X

Software Engineer - Product

San Carlos, CA · On-site

Responsibilities : • Own features end-to-end across the Go backend, TypeScript/React frontend ... stack engineer equally fluent in Go backend services and TypeScript/React frontends; designs ...

8VC

Product Engineer - Thorin

San Francisco, CA · On-site

You should be a strong frontend engineer (TypeScript, React) who ships fast and writes clean code. You should have real experience building AI-powered products at work or at home, but thinking hard ...

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Typescript React Developer Junior information

What is the difference between Typescript React Developer Junior vs Typescript React Developer Mid-Level?

CriteriaTypescript React Developer JuniorTypescript React Developer Mid-Level
Experience0-2 years2-5 years
SkillsBasic understanding of React and Typescript, limited project experienceProficient in React and Typescript, able to handle complex projects
ResponsibilitiesAssist in development, bug fixing, learning best practicesLead small features, optimize code, mentor juniors
Work EnvironmentEntry-level teams, supervised tasksCollaborative teams, independent task management

The main difference between a Typescript React Developer Junior and a Mid-Level is experience and responsibility. Juniors are typically new to the field, focusing on learning and assisting, while Mid-Level developers handle more complex tasks and contribute more independently.

What are the key skills and qualifications needed to thrive as a junior Typescript React developer?

To thrive as a Junior TypeScript React Developer, you need a solid understanding of JavaScript, TypeScript, React fundamentals, and basic web development principles, often supported by a relevant degree or coding bootcamp experience. Familiarity with version control systems like Git, package managers (npm/yarn), and front-end build tools is typically required. Strong problem-solving skills, attention to detail, and effective communication help you collaborate and learn within development teams. These skills and qualities are crucial for building reliable, maintainable user interfaces and for growing professionally in a fast-paced tech environment.

What are some common challenges junior Typescript React developers face when joining a new team, and how can they overcome them?

Junior Typescript React developers often encounter challenges such as understanding established codebases, adapting to team coding standards, and effectively using TypeScript’s type system. To overcome these, it’s helpful to actively participate in code reviews, seek feedback from senior developers, and make use of available documentation. Regularly pairing with teammates and practicing writing typed components can also accelerate learning and ease the transition into collaborative workflows.

What is a Typescript React developer junior?

Typescript React Developer Juniors are entry-level software developers who specialize in building web applications using React, a popular JavaScript library for user interfaces, and TypeScript, a typed superset of JavaScript. They typically have foundational knowledge of these technologies and work on tasks such as developing components, fixing bugs, and collaborating with more experienced developers. Junior developers are expected to learn best practices, write clean and maintainable code, and gradually take on more complex responsibilities as they gain experience.
What are popular job titles related to Typescript React Developer Junior jobs in California? For Typescript React Developer Junior jobs in California, the most frequently searched job titles are:
What job categories do people searching Typescript React Developer Junior jobs in California look for? The top searched job categories for Typescript React Developer Junior jobs in California are:
What cities in California are hiring for Typescript React Developer Junior jobs? Cities in California with the most Typescript React Developer Junior job openings:
Typescript React Developer Junior jobs near you
Infographic showing various Typescript React Developer Junior job openings in California as of August 2026, with employment types broken down into 79% Full Time, 3% Part Time, and 18% Contract. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution.

Founding Full Stack Developer

Hired Recruiters

San Francisco, CA • On-site, Remote

Full-time

Re-posted 9 days ago

Job description

Comity is looking for a Full Stack Developer to contribute both to our mobile application and backend for our Guaranteed Income product. The app will integrate with Comity's backend via a REST API and allow our members to apply for the Comity Card, see upcoming advances, transaction history, and balance, manage their card, and settle up at tax time. We are building a multiplatform app with React Native, but prioritizing Android which has greater market share among our target customer base. The backend will integrate with third party data vendors and our card processor, and expose REST APIs to our mobile application and internal admin portal.
You will work with our engineering team to design, develop, test, and deploy our mobile app, which is built with React Native and Typescript, and our backend, which is built with Kotlin. This includes implementing mobile components and features, REST APIs and batch jobs, third party API and SDK integrations, application monitoring, and writing unit, integration, and functional tests. As one of our first engineering hires, you will have broad impact and ownership over our codebase, technology choices, and team culture.
  • Funding $4.6M
  • Founded 2018
  • Salary: $160k - $200k
  • 100% US remote
  • ~8 employees
  • Seed Company
  • Skills: React
  • Will Transfer H1
Skills and Experience
  • 4+ years experience working on production web services or mobile applications.
  • We like to hire generalists, but experience with any part of our stack (Typescript, React Native, Kotlin, OpenAPI, Gradle, PostgreSQL, AWS) is a plus.
  • We are a small team working on a greenfield product, so an ability to work well in an unstructured environment with loosely defined requirements is critical.
Location
New York is the preferred location for this role but we are open to US-based remote engineers as well. Our founding team is located in New York, where we plan to establish an office. We also work remotely with engineers in Austin, San Francisco, and New Mexico. We plan to host colocated work weeks once per quarter in New York.

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