1057 react English-speaking jobs in Warsaw

content of our users is being created, where stability and performance are key.Tech Stack: TypeScript • React ... Science or equivalent real-world experience5+ years of software development experienceDeep expertise in React

Demonstrated proficiency in frontend development with React and TypeScript. ... Architect, develop, and support backend components using Django/FastAPI and frontend modules with React

Node.js Developer will contribute to product development for a renewable energy platform connecting photovoltaic producers with contractors. Responsibilities include designing APIs, writing database queries, and creating new functionalities.

Senior Business Development Specialist will co-create and implement the company's business strategy, create sales campaigns, manage customer outreach channels, and collaborate with HR to provide IT services. Requires 5+ years of experience in a similar role, including 3+ years in the IT industry, a successful sales campaign portfolio, and experience conquering foreign markets.

iOS Developer will contribute to a new fintech product, an alternative to traditional bank accounts, using Swift UI 2.0, Kotlin, and Angular technologies. The role involves collaborating with a small scrum team and utilizing tools like Jira, Slack, Github, and Google Cloud Platform.

Unity 3D Engineer will design, implement, and release a web3 strategy game set in the Middle Ages. Experience with Unity WebGL or Wasm, Unity Asset Pipelines, and Addressables System is required.

Node.js Developer/DevOps will build a scalable NFT platform using Ethereum and AWS. Experience with Kubernetes, Jenkins, and cloud platforms is required. Must have at least 4 years of Node.js development experience and strong English communication skills.

Python Developer will join a team developing a medical examination application for the European Union. Responsibilities include developing the application and contributing to code cleanliness and good programming practices. Requires 3+ years of experience with Python and Django.

Support clients in developing fintech and e-commerce platforms using Python. Work on project architecture and development practices. Provide feedback and collaborate with client tech teams.

Blockchain Developer will build a scalable NFT platform using Ethereum and AWS. Experience with Solidity and Ethereum application development is required. The role involves working in Scrum and collaborating with a team.

Part-time Golang Developer to transform a Ruby monolith into Go services. Responsibilities include validating parameters, creating API queries, and sending events. Requires experience with API, gRPC, and JWT. Must have B2 English proficiency.

Blockchain Engineer will focus on security testing and analysis of smart contracts for blockchain data analysis projects. Experience with Solana, Polkadot, Cardano, or Algorand is required.

Ruby on Rails Developer will work on a greenfield hospitality website project integrating with booking platforms and payment systems. Experience with Vue.js, relational databases, and AWS is preferred.

Webflow Developer needed to create landing pages and mobile views for sales campaigns. Experience with Webflow, HTML, CSS, and email marketing tools (Mailchimp preferred) required.

Postgres).You are a team player.You are comfortable communicating in English.Nice to haveExperience with React

Develop a startup project automating contract signing processes, including contract creation, sales and HR automation, API integrations, and custom solutions. Requires experience with React.js or Elixir (Phoenix) and knowledge of modern application architectures, RESTful APIs, code optimization, and automated testing.

Our platform puts information in motion, streaming in near real‑time so companies can react faster, build

DevOps Lead to manage product development in the gaming industry and shape the DevOps culture. Requires 5+ years of experience, leadership preferred. Expertise in k8s, Docker, Terraform, cloud platforms (AWS, GCP, Azure), Unity Build Pipeline, blockchain, and security. Excellent English skills needed for international team.

Front-end Developer will contribute to a new fintech product, a bank account alternative, using Angular, SwiftUI, and Kotlin technologies. The role involves collaborating with a small scrum team and utilizing tools like Jira, Slack, Github, and Google Cloud Platform.

are a person who values teamworkYou have a positive attitude towards new challengesExperience with React