React js jobs in Poland

 ...Responsibilities: Develop and maintain scalable frontend applications using React 19 and TypeScript . Build and optimize applications within a...  ...(strict mode) and modern JavaScript. Solid knowledge of Node.js and React . Experience working with Turbo monorepos and... 

 ...~5+ years of experience in full-stack development with a strong focus on backend. ~ Deep expertise in TypeScript, Node.js, Next.js, and React . ~ Experience with AWS Serverless , distributed computing, and big data architectures. ~ Strong SQL skills (Postgres... 

 ...maps out robust application features fluidly natively using Node.js paradigms, evaluates web performance boundaries cleanly natively...  ...heavily unit-tested source code natively leveraging TypeScript, React, HTML5, and relevant modern software frameworks. Web Performance... 

 ...manage their portfolio, and interact with their assets. Our stack is React on web and React Native on mobile, and we ship fast, measure...  ...engineers who have strong views on things like TanStack Router vs Next.js App Router and can back them up with real experience). Set the... 

 ...from time to time. What you should have ~ Strong technical skills that allow you to read, write and debug code ( Javascript/Node.js preferred). ~5+ years experience in a Solutions Engineering, Sales Engineering, a Customer Solutions or a Forward Deployed... 

 ...(e.g., Splunk, New Relic, CloudWatch, Prometheus, Grafana, Kibana, Sentry). Hands-on programming capacity with JavaScript, Node.js, and TypeScript inside Linux/Mac environments. Solid background in Linux Systems Engineering and sustainable incident response patterns... 

 ...product systems Contribute to a product experience where AI feels proactive, consistent, and dependable over time Tech Stack Next.js Python NodeJs Pytorch OpenAI / Anthropic / open-source LLMs SQL & noSQL Kubernetes Docker How We Work The... 

 ...of 3+ years of proven, successful professional software engineering history operating as a Backend Developer, Systems Engineer, Node.js/Python Specialist, API Integration Architect, or closely matching technical capacity inside production environments. Expert Backend... 

 ..., Docker, or Kubernetes environments. ~ Familiarity with foundational API test automation concepts, script writing (via Python or JS/TS), and monitoring dashboards (such as **Grafana**). ~ Location Context: 100% remote-first full-time operational framework restricted... 

Softeta is an IT solutions provider based in Vilnius, Lithuania. With over 90 professionals located across Lithuania and Poland, we support companies in overcoming complex IT challenges through tailor-made software development and data-driven solutions. Softeta is looking...

About Nethermind Nethermind is a blockchain research and software engineering company building high-performance infrastructure, security tooling, and cryptographic systems across the Ethereum ecosystem and beyond. We work closely with protocol teams, L2s, and ZK projects...

About Innovecs: Innovecs is a premier, globally recognized digital services and enterprise software development outsourcing company with an established operational footprint across the United States, United Kingdom, European Union, Israel, Australia, and Ukraine. Celebrated...

Summary The Wikimedia Foundation is seeking a Senior Software Engineer to join the team supporting the Wikidata Platform — the structured data backbone of Wikimedia projects and a key part of the global open knowledge ecosystem. You’ll help scale and sustain the Wikidata...

About AI Acquisition: AI Acquisition (aiacquisition.com) is a premier, internationally recognized AI product incubator, growth marketing tech developer, and elite automated systems provider operating on a relentless mission to build, test, and ship highly autonomous enterprise...

Who are we? Equinix is the world’s digital infrastructure company®, shortening the path to connectivity to enable the innovations that enrich our work, life and planet.  A place where tech thinkers and future builders turn bold ideas into breakthrough experiences...

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. The Repayment Scheduling engineering team is growing rapidly, and we're looking for a Senior ...

About Oversee: Oversee is a premier, internationally recognized corporate travel technology pioneer, machine learning innovator, and enterprise SaaS trailblazer on an absolute mission to completely reshape how multinational travel spending is managed, optimized, and audited...

Dropbox is looking for a Data Engineer to join our Analytics Data Engineering (ADE) team within Data Science & AI Platform. In this role you will build large, scalable analytics pipelines using modern data technologies. This is not a “maintain existing platform” or “make...

About Bnberry: Bnberry is a premier, internationally recognized travel technology pioneer, e-commerce hospitality innovator, and distribution channel management leader on an absolute mission to engineer next-generation software platforms for the global lodging and property...

InPost has revolutionised e-commerce parcel delivery in Poland and is now one of Europe’s leading out-of-home (OOH) e-commerce enablement platforms. Founded in 1999 by Rafał Brzoska. InPost provides delivery services through a network of over 64,000 Automated Parcel Machines...

Altoros - a leading IT services provider is looking for a **Unity Support Engineer. **!Part-time position. Responsibilities: Regularly review Unity SDK release notes on a monthly basis and: Identify and flag breaking changes that may impact integration with...

At Zowie, we build AI agents that handle millions of real conversations every month, for brands like InPost, Empik, Decathlon, and Allianz. They track packages, sort out claims, and actually resolve the issues people bring them. We're changing how people interact with ...

About A1 There are over 5 billion users using basic applications today such email, notes, tasks that are not AI-native. Our mission is to build a proactive smart assistant for everyday users to bring intelligence to conversations, errands, organising and workflows, with...

About Nethermind Nethermind is a blockchain research and software engineering company building high-performance infrastructure, security tooling, and cryptographic systems across the Ethereum ecosystem and beyond. We work closely with protocol teams, L2s, and ZK projects...

About Primer: Primer is a premier, globally distributed financial technology pioneer building the unified automation infrastructure for international payments. By consolidating fragmented transaction flows, checkout funnels, and alternative provider networks into a single...

InPost Group is an innovative European out of home deliveries company, revolutionizing the way parcels are delivered to customers. With operations across several countries, our network of intelligent lockers provides customers with a fast, convenient, and secure delivery...

Symphony Solutions is a Cloud and AI-driven IT company headquartered in the Netherlands. We are a premier software provider of custom iGaming, Healthcare, and Airline solutions. Devoted to delivering the highest quality of service, we offer our expertise in full-cycle ...

About Gcore: Gcore is a premier, internationally recognized web infrastructure giant, cloud computing titan, and global artificial intelligence enablement leader operating on an absolute mission to build, protect, and scale the invisible software and hardware foundations...

ShiftKey is a healthcare workforce marketplace operating in a regulated (HIPAA) environment, and we are building toward being an AI-native company. We are past the experimentation phase but nowhere near done - and that middle stage is exactly why this role exists. The...

About Nethermind Nethermind is a blockchain research and software engineering company building high-performance infrastructure, security tooling, and cryptographic systems across the Ethereum ecosystem and beyond. We work closely with protocol teams, L2s, and ZK projects...