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Concord • 50 milesRemote · Hybrid · Onsite · Field · All Environments

Concord • 50 milesRemote · Hybrid · Onsite · Field · All Environments

Concord • 50 milesRemote · Hybrid · Onsite · Field · All Environments

765 python react jobs at 380 companies in Concord, CA

PromotedHiringCafe

Founding Backend / Infra Engineer

Cupertino, CA, US

$160k-$300k/yr On-SiteFull Time

HiringCafe

HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.

Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.

Node.js, Python, Elasticsearch, Redis

Help us #BeatIndeed & #BeatLinkedIn

PromotedHiringCafe

Founding Full-stack / Product Engineer

Cupertino, CA, US

$130k-$300k/yr On-SiteFull Time

HiringCafe

HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.

Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).

React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe

Help us #BeatIndeed & #BeatLinkedIn

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2mo

Staff Level Full Stack Engineer (React / Python)

San Francisco, California, United States

OnsiteFull Time

Sourcetable

Sourcetable: AI-powered spreadsheet platform that automates data analysis.

9+ YOEProven Python and React experience, 9+ years, CS degree or equivalent, startup experience, ownership of projects, focus on scalability and performance.

React, Python, Cassandra, SQL, NoSQL, Docker, CI/CD

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UI Engineer - Full-Stack (React/TypeScript, Python)

San Francisco, California, United States

$140k-$320k/yr OnsiteFull Time

Guild.ai

Guild.ai: Building a neutral control plane for production AI agents.

Strong production experience with React and TypeScript, comfortable working with Python backends, API design, frontend architecture, performance, testing, and collaborating with designers.

React, TypeScript, Python, Kubernetes, LLM, CLI

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1mo

Senior Product Software Engineer (Python)

San Francisco or Chicago or Los Angeles

$160k-$200k/yr HybridFull Time

Tyba

Tyba: AI software for modeling and operating renewable energy projects.

5+ YOE5+ years full-stack engineering experience; strong Python and React; production GraphQL experience; willingness to learn ClojureScript; familiarity with AI-assisted coding tools; strong cross-functional communication.

Python, React, GraphQL, Strawberry, ClojureScript, Cursor, Copilot, Claude Code, Warp Agent Mode, Recharts, ECharts, dbt, Snowflake, Redshift, PyTorch, AWS, PostgreSQL, Fulcro, Tailwind CSS, Clojure, Kotlin

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4d

Staff Software Engineer, Full Stack

San Francisco, California, United States

$162k-$245k/yr RemoteFull Time

Phantom

Phantom: Digital wallet for storing and trading various cryptocurrencies

3+ YOEBachelor's in CS or related field,3+ years software engineering experience,proficiency with Typescript,React,React Native,Node.js,Python,Java,BLS writing tests and system monitoring.

Typescript, React, React Native, Node.js, Python, Java

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2mo

Tech Lead Manager - Full Stack

San Francisco, California, United States

OnsiteFull Time

Medra

Medra: Builds autonomous robots and AI for scientific research.

Senior-level engineering lead with strong full-stack experience, Python backend, React frontend, and system design.

Python, React, TypeScript, HTML, CSS, JavaScript, REST, Postgres, Redis

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1w

Senior Software Engineer (Applied AI)

New York City or San Francisco

$200k-$240k/yr OnsiteFull Time

Traba

Traba: AI-driven platform connecting industrial businesses with vetted workers.

5+ YOE5+ years full‑stack experience with TypeScript, React/React Native and Node.js or Python; strong APIs, distributed systems, PostgreSQL, messaging (Kafka or RabbitMQ); hands‑on LLM/agent integration; excellent communication.

TypeScript, React, React Native, Node.js, Python, PostgreSQL, Kafka, RabbitMQ, LLMs, agents

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3mo

Engineering Manager, Social Commerce

San Francisco, California, United States

$248k-$279k/yr OnsiteFull Time

Discord

Discord: A platform providing voice, video, and text communication services.

5+ YOE2+ Mgmt5+ years of software engineering; 2+ years in engineering management; strong full-stack skills (Python, TypeScript/React, React Native); product mindset; comfortable with ambiguity; track record of growing engineers.

Python, TypeScript/React, React Native

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1mo

Product Engineer

San Francisco, California, United States

$115k-$150k/yr OnsiteFull Time

Workhelix

Workhelix: Provides software to measure and optimize enterprise AI ROI.

2+ YOE2+ years full-stack engineering experience; strong Python and React preference; SQL fluency; experience with FastAPI/Postgres/React stack; strong communication, systems mindset, and customer-focused problem solving.

FastAPI, Python, Postgres, PostgreSQL, React, SQL, Slack

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2mo

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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3mo

AI Engineer, Quality (Evals)

San Francisco, California, United States

$170k-$220k/yr RemoteFull Time

Fieldguide

Fieldguide: AI-native platform for automating audit and advisory workflows.

Experience shipping production software; proficiency in TypeScript, React, Python, PostgreSQL; familiarity with AI evaluation, observability, and LLM-based systems.

TypeScript, React, Python, PostgreSQL, LangSmith, LangGraph, LLM, RAG, Vector Databases, Embeddings

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2mo

Senior Full-Stack Software Engineer - Applied AI

San Francisco or San Jose or Cupertino or Palo Alto

HybridFull Time

Mainstay

Mainstay: AI platform for single-family rental real estate transactions.

5+ YOE5+ years producing production software; AI feature deployment; strong full-stack skills with Python and React; remote collaboration.

Python, TypeScript, FastAPI, Django, React, Next.js, Airflow, dbt, Snowflake, PostgreSQL, AWS, Terraform, GitHub

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3mo

Senior Full Stack Software Engineer

San Francisco or United States

$204k-$286k/yr HybridFull Time

Vivodyne

Vivodyne: Tests therapeutics on lab-grown human tissues using AI and robotics.

5+ YOE5+ years building complex React apps, TypeScript, Postgres; Python; FastAPI; API design; collaboration with scientists; AI tooling.

React, TypeScript, PostgreSQL, FastAPI, Python, CSS, Tailwind, TanStack

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3mo

Member of Technical Staff - Forward Deployed Engineer

New York or San Francisco

OnsiteFull Time

Valthos

Valthos: Develops AI systems to identify biological threats and design countermeasures.

Strong software engineering background; Python, React, TypeScript; cloud infra; collaboration; travel 25%+; ability to ship production systems.

Python, TypeScript, React, Cloud infrastructure, Data structures, Front-end frameworks

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3mo

Staff Software Engineer

Berkeley, California, United States

$190k-$228k/yr OnsiteFull Time

Copper

Copper: Manufacturing battery-integrated induction stoves for simple home electrification.

10+ YOE10+ years of software development; cloud-based systems; TypeScript/Python; React; SQL; experience with AWS; strong collaboration and ownership.

TypeScript, Python, React, SQL, AWS, protobufs, RPC frameworks

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3mo

Senior Full Stack Engineer, Agentic Security

Bengaluru or San Francisco or New York City or Amsterdam or London

RemoteFull Time

Dynamo AI

Dynamo AI: A building trustworthy AI guardrails, observability, and red-teaming tools for enterprise deployments.

Strong full-stack experience building backend services and React UIs; experience with Python/FastAPI, TypeScript/React, PostgreSQL, Redis, Docker/Kubernetes, CI/CD and production release ownership; familiarity with AI-assisted development workflows.

Python, FastAPI, NestJS, React, Next.js, TypeScript, PostgreSQL, Redis, Redis Streams, Docker, Helm, GitHub Actions, Kubernetes, AWS, PyInstaller, Git, Cursor, Claude Code, Copilot, pyproject.toml, ArgoCD

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3mo

Full Stack Software Engineer

Austin or Cupertino

HybridFull Time

Apple

AppleNASDAQ: AAPL: Designs and sells consumer electronics, software, and online services.

10+ YOEBS + 10 years of experience; proficient in Python, JavaScript, or Go; frontend with React; SQL/NoSQL; Linux; REST APIs; JWT/OAuth.

Python, JavaScript, Go, React, SQL, NoSQL, Linux, REST API, JWT, OAuth, CI/CD, TeamCity, GitLab, Docker, Kubernetes, OpenAI API, Splunk, Elastic Stack

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2mo

Senior Software Engineer

San Francisco or New York City

$180k-$230k/yr HybridFull Time

Beacons

Beacons: All-in-one business platform for content creators and influencers.

Proficient in TypeScript (React) and Python (Flask); AI-native workflow experience; experience with SQL/Postgres; startup experience; strong customer focus.

React, TypeScript, Python, Flask, Firebase, SQL, PostgreSQL

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3mo

Product Engineer US

San Francisco or New York

HybridFull Time

Namespace

Namespace: Cloud infrastructure platform for faster software builds and tests.

Strong software fundamentals; experience with TypeScript/JavaScript (React), Go, Python; track record shipping product features; customer-centric; collaborative.

TypeScript/JavaScript, Go, Python, React

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2mo

Principle Software Engineer, AI Observability & Evals Platform

Boston or San Francisco or New York City

$230k-$270k/yr OnsiteFull Time

LangChain

LangChain: Tools for building and deploying production-ready AI agents.

10+ YOE10+ years backend or full-stack engineering; strong Python/Go; TypeScript/React; architectural decisions; reliable, scalable systems; mentoring.

Python, Go, TypeScript, React

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3mo

Ex-Founder

San Francisco, California, United States

OnsiteFull Time

Wispr Flow

Wispr Flow: Provides AI-powered voice dictation software for computers and mobile devices.

Former founder with engineering or growth expertise; for engineers: proficient in TypeScript, React, Python; for growth: scalable growth experience and user-centric mindset.

TypeScript, React, Python

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