Technical Team Lead (React +Node.js)

🏢 Summary: Hybrid Team Lead FullStack role focused on building and scaling high-performance web applications using React and Node.js, while leading a development team. The position combines hands-on front-end and back-end development with architectural design, API development, and cloud-based deployments. You will drive technical excellence across the full software development lifecycle in an international R&D environment. 🗂️ Requirements: 7+ years full-stack development experience with React and Node.js, 2+ years experience in team leadership or senior developer role, Expertise in React.js, Redux, React Hooks, Strong knowledge of HTML5, CSS3, JavaScript (ES6+), Proficiency in Node.js and Express.js, Experience designing RESTful APIs or GraphQL APIs, Knowledge of OAuth, JWT or session-based authentication, Experience with PostgreSQL or MySQL, Experience with AWS, Azure or GCP, Experience with Docker and CI/CD pipelines 📃 Skills: React, Redux, JavaScript, HTML5, CSS3, Node.js, Express, GraphQL, REST, OAuth, JWT, PostgreSQL, MySQL, AWS, Azure, GCP, Docker, Kubernetes, CI/CD, Webpack, Babel, Vite 🏢 Description: Team Lead FullStack (Node.js, React) IT · Warsaw (City Center) · Hybrid About the Client Our Client is a fast-growing, international technology company that provides innovative digital solutions for the global market. They are currently expanding and developing their R&D center in Warsaw. They are a leader in AI-powered enterprise operations, delivering digital solutions and consulting services that drive value and transform businesses. They specialize in using advanced technology to streamline operations, improve efficiency, and unlock new revenue opportunities, particularly within the private capital markets. With over a decade of experience supporting high-growth companies, they bring deep domain expertise and a proven ability to turn technology into a strategic advantage. Role Overview We are seeking a highly skilled Full Stack Team Lead with expertise in React and Node.js to lead our dynamic team. The ideal candidate will have over 7 years of experience in designing and building high-performance web applications, along with demonstrated leadership experience. You will lead a team of developers, working on both front-end and back-end development, contributing to every stage of the software development lifecycle, and mentoring junior team members. Key Responsibilities Team Leadership & Mentorship: Lead and mentor a team of software engineers, fostering a collaborative and high-performance environment. Provide technical guidance, conduct code reviews, and support professional development. Front-End Development: Build and maintain interactive and responsive user interfaces using React.js, Redux, and modern JavaScript (ES6+). Back-End Development: Develop robust, scalable server-side applications and RESTful APIs using Node.js and Express. Application Architecture & Integration: Design and implement scalable architectures and microservices that meet business needs, ensuring best practices are followed across the team. Collaborate with database engineers to design efficient database schemas and manage data interactions using MongoDB or SQL databases. Deployment & Testing: Manage deployments and ensure seamless delivery of updates using CI/CD pipelines and containerization tools like Docker. Ensure high-quality code by writing unit and integration tests, performing debugging, and optimizing application performance. Collaboration & Documentation: Work closely with designers, product managers, and other developers to deliver innovative and user-centric solutions. Create and maintain technical documentation for applications, APIs, and architectural decisions, ensuring team adherence to documentation standards. Requirements & Qualifications Experience & Education: 7+ years of professional experience in full-stack development with React and Node.js. 2+ years of experience in a team lead or senior leadership role, guiding and mentoring other developers. A Bachelor's degree in Computer Science or equivalent is preferred. Front-End Stack: Expertise in React.js, Redux, React Hooks, and component-based architecture. Strong knowledge of HTML5, CSS3, and modern JavaScript (ES6+). Familiarity with front-end tools like Webpack, Babel, or Vite. Back-End Stack: Proficiency in Node.js and Express.js for building server-side applications. Experience with API design and integration, including GraphQL (preferred) or RESTful services. Knowledge of authentication mechanisms such as OAuth, JWT, and session-based authentication. Database & DevOps: Hands-on experience with databases such as PostgreSQL or MySQL. Experience with cloud platforms such as AWS, Azure, or GCP. Familiarity with containerization tools like Docker and orchestration tools like Kubernetes is a plus. Soft Skills: Strong problem-solving and analytical skills. Excellent communication and collaboration abilities, with a proven ability to lead and motivate a team. Eagerness to stay updated on emerging technologies and trends, and to drive continuous improvement within the team. What Is Offered Compensation: Monthly compensation up to 9,000 USD gross . Contract Type: Employment Contract (Umowa o Pracę) ONLY . Please note that there is strictly no B2B option available for this position. Work Model: Hybrid (3 days working from the office located in the center of Warsaw, 2 days working from home). Stability: Long-term cooperation with a stable, international organization. Culture: We value creative problem solvers who learn fast, work well in an open and diverse environment, and enjoy pushing the bar for success ever higher. We do work hard, but we also choose to have fun while doing it.

🏢 Summary: Hybrid Tech Lead role responsible for driving technical direction across backend and frontend, ensuring scalability, performance, and code quality. The position involves hands-on full‑stack development, architectural decision-making, and leading a cross-functional product team. You will own API design, database architecture, and UI implementation while mentoring engineers and aligning technology with product goals. 🗂️ Requirements: 5+ years commercial experience with PHP 7+, Strong experience designing and maintaining scalable backend systems, Proficiency in PostgreSQL schema design and query optimization, Production experience with React, Experience with TypeScript, Ability to design and maintain RESTful APIs, Strong knowledge of SOLID principles and design patterns, Experience with Git and automated testing tools, Hands-on Tech Lead experience, Experience working in cross-functional product teams, Active usage of AI coding tools, Ability to write and communicate technical documentation in English 📃 Skills: PHP, PostgreSQL, React, TypeScript, REST, Git, PHPUnit, PHPStan, CSFixer, SOLID, Figma, Copilot, ChatGPT, Claude 🏢 Description: About SINGU At SINGU , we’re redefining how the world’s most ambitious real estate companies run their operations. Our mission is to become Europe’s leading platform for managing warehouse, logistics, retail, and multi-site commercial real estate portfolios — empowering our Clients to protect revenue, boost efficiency, and unlock new value across every aspect of their business. Our unified CAFM platform already powers the daily operations of over 250 million m² of real estate worldwide , supporting more than 500,000 professionals. Following our union with the UK’s Micad and Germany’s net-haus, we now help manage 100,000+ buildings across 35+ countries — and we’re just getting started. Backed by a leading growth equity investor, we’re scaling rapidly and partnering with global leaders such as Prologis, ECE, CTP, Hillwood, Logicor, GLP, and Unibail-Rodamco-Westfield. As we continue to grow through strategic acquisitions and bold innovation, we stay true to our core values: adaptability, collaboration, and client focus. If you’re ready to help build Europe’s leading platform for property operations — and make a tangible impact on how the real estate industry works — join SINGU and be part of this transformation. Build the architecture for SINGU's newest revenue line — Project Tracker. The product Project Tracker is SINGU's new module for managing CAPEX/OPEX projects across commercial real estate portfolios. MVP went live early this year. Foundations work, but the architecture for the next few years is still open. Traction is real: 294 people from 110 clients on the waitlist (Prologis, Mapletree, NEPI, Globalworth, Segro). After a demo, Prologis's Director of Global Operations asked for early access. Separately priced module – a revenue line, not a free feature. Alongside Project Tracker, we have several AI initiatives in active development across the platform. As Tech Lead you won't be siloed in one module – you'll have visibility and a seat at the table on the broader AI work shaping where the product goes next. The team Small and co-located in our Kraków office: a PM, a UX designer, a backend developer, a fullstack developer, and a mobile developer, QA sits in a dedicated team alongside us. You'll work shoulder-to-shoulder on the same floor. The stack PHP 8 on Phalcon (monolith), PostgreSQL, React 18 in parts of the UI, TypeScript. What you'll do – honestly This isn't a pure tech role. You'll juggle: Architecture: decisions that stick for years on a module still finding its shape. Requirements analysis & work decomposition: turning client needs into shippable scope. Hands-on development: you ship code. People work: knowing when to call the shot and when to trust the team. What we're looking for: 5+ years commercial PHP (8+), confident with Git, PHPUnit, PHPStan, CSFixer. Fluent in PostgreSQL (schema, performance, migrations). Production React (TypeScript preferred). SOLID, design patterns, REST API design as second nature. You actively use AI tools (Copilot, ChatGPT, Claude) – expected, not nice-to-have. Tech Lead experience: either proven, or you've been making technical and architectural decisions as a senior and are ready to step into the role Polish fluent enough to work daily with the team. English good enough to run client meetings: our clients are a mix of Polish and international, so you'll switch between both depending on the call. Nice-to-haves: Flutter, AWS, Kubernetes/Docker/CI, experience with Phalcon or similar lightweight PHP frameworks. Honest notes Project Tracker is early – a new module still in active development. The MVP is live, but the product is taking shape and you're shaping its architecture, not inheriting it The role is a mix. Hands-on + architecture + analysis + people. If you want to stop coding, this isn't it. No on-call for this role. The practical stuff Salary: 20,000–25,000 PLN net B2B / 16,600–20,750 PLN gross UoP. Hybrid: 2–3 days/week from Kraków office. Top-notch Apple equipment , private healthcare (dental + vision), life and health insurance, sport card, annual training budget, commute subsidy, referral programme, extra day off for medical check-ups, annual team offsite. If this role sounds like a good fit, we’d love to hear from you. Apply and help us build technology that supports critical operations every day.

🏢 Summary: Full-time Team Lead Software Engineer role focused on leading a full-stack team building high-performance web applications using React and Node.js. The position combines hands-on development with architectural ownership, mentoring, and delivery of scalable, AI-powered enterprise platforms. Work involves designing microservices, APIs, and cloud-based containerized deployments in a hybrid setup from Warsaw. 🗂️ Requirements: 7+ years full-stack experience with React.js and Node.js in production, 2+ years in Team Lead or senior engineering leadership role, Strong knowledge of React ecosystem (Redux, Hooks, component architecture, performance optimization), Proficiency in HTML5, CSS3, JavaScript ES6+, Experience with build tools (Webpack, Vite, or Babel), Experience with Express.js and RESTful API design, Knowledge of OAuth, JWT, session-based authentication, Experience with PostgreSQL or MySQL, Experience with MongoDB or other NoSQL databases, Hands-on experience with Docker, Familiarity with AWS or other major cloud platform, Experience with Git and Agile/Scrum methodologies 📃 Skills: React, Redux, JavaScript, HTML5, CSS3, Node.js, Express, REST, GraphQL, OAuth, JWT, PostgreSQL, MySQL, MongoDB, Docker, Kubernetes, AWS, Git, Webpack, Vite, Babel, Agile, Scrum 🏢 Description: 💰 Salary: 29,500–33,200 PLN/month 🌎 Hybrid from Warsaw, Poland 🕦 Full-time position, long-term ☑️ Contract of Employment We are looking for a Team Lead Software Engineer to join our client, a technology company that builds AI-powered platforms and consulting solutions for enterprise operations, with a strong focus on the private capital sector. The company has over ten years of experience working with high-growth and PE-backed businesses, combining deep domain expertise with advanced technology to drive measurable results. In this role, the focus will be on leading a team of developers across front-end and back-end development, owning architectural decisions, and contributing directly to the codebase. You will mentor engineers and drive the delivery of high-performance web applications using React and Node.js. Requirements 7+ years of full-stack development experience with React.js and Node.js in production environments 2+ years in a team lead, tech lead, or senior engineering leadership role Strong command of the React ecosystem: Redux, React Hooks, component architecture, and performance optimization Solid HTML5, CSS3, and modern JavaScript (ES6+); experience with build tooling such as Webpack, Vite, or Babel Proficiency with Express.js and API design (RESTful; GraphQL is a plus) Working knowledge of auth patterns: OAuth, JWT, session-based authentication Hands-on experience with PostgreSQL or MySQL; familiarity with MongoDB or similar NoSQL databases Docker experience required; Kubernetes is a plus Familiarity with at least one major cloud platform (AWS preferred) Comfortable with Git workflows and Agile/Scrum delivery Responsibilities Lead and mentor a team of software engineers; run code reviews, set engineering standards, and hold the bar on quality Architect and build full-stack features using React.js (with Redux and Hooks) on the front end and Node.js / Express.js on the back end Design scalable microservices and RESTful (or GraphQL) APIs aligned with product requirements Own the testing strategy: define coverage expectations, enforce unit and integration testing, and integrate quality gates into CI/CD pipelines Manage containerized deployments via Docker; collaborate on infrastructure with cloud platforms (AWS, Azure, or GCP) Partner directly with Product and Design to translate requirements into production-grade, accessible interfaces Model and maintain SQL and NoSQL data schemas; own data interaction patterns across services Monitor production systems, triage incidents, and drive root-cause resolution Keep technical documentation accurate and up to date Get to know DevsData We are a technology consulting company and a recruitment agency, delivering software solutions to clients from Europe and the US. We work 100% remotely, in an international team. We employ people with experience in international corporations as well as the ones from the best technical and business universities. Find out more: https://devsdata.com

🏢 Summary: Senior Fullstack Software Engineer & Tech Lead role focused on designing and delivering scalable, cloud-native applications on AWS using modern full-stack technologies. The position combines hands-on development with technical leadership, architecture design, and infrastructure automation. The engineer will drive end-to-end solutions, from UI and APIs to CI/CD and Infrastructure-as-Code. 🗂️ Requirements: 8+ years of software engineering experience, Strong experience in full-stack development, Expertise in TypeScript, Experience with React, Hands-on experience with AWS, Experience with serverless services (Lambda, Batch), Knowledge of Infrastructure-as-Code (Terraform or CloudFormation), Experience with RESTful API development, Experience with relational databases, Experience with NoSQL databases, Experience with CI/CD pipelines, Ability to lead technical design and mentor engineers 📃 Skills: TypeScript, React, AWS, Lambda, Batch, Terraform, CloudFormation, REST, SQL, SQLServer, DB2, Sybase, MongoDB, Elasticsearch, CI/CD 🏢 Description: Senior React Developer with AWS Join a global leader in financial technology as a Senior React Developer with AWS, shaping the future of innovative, cloud-native web applications. In this high-impact role, you'll spearhead the design and development of cutting-edge solutions at a major international institution, collaborating with cross-functional teams across Warsaw, London, New York, and India. Be part of a forward-thinking environment driving a transformative cloud migration strategy, leveraging AI and modern development practices to deliver scalable, high-performance platforms. What You'll Do: Architect and engineer modern web applications using React, TypeScript, and AWS Lead technical decision-making and provide architectural guidance to the development team Develop and maintain serverless solutions with AWS Lambda, Batch, and CloudWatch Write Infrastructure-as-Code with Terraform to streamline deployment and infrastructure management Collaborate closely with designers, product managers, and stakeholders to translate requirements into robust solutions Support migration of legacy systems to cloud-native, React-based architectures Optimize CI/CD pipelines for automated, efficient deployment Work with cloud storage solutions such as S3, MongoDB, and ElasticSearch Required Skills: 8+ years of practical software engineering experience Strong expertise in React and TypeScript Hands-on experience with AWS services, especially Lambda, Batch, and CloudWatch Experience with Terraform or similar Infrastructure-as-Code tools Solid understanding of relational and non-relational databases (MongoDB, ElasticSearch, S3) Knowledge of RESTful API design and development Excellent communication skills, capable of engaging with non-technical stakeholders Bachelor’s degree in Computer Science, Engineering, Mathematics, or related field Nice to Have Skills: Experience with CI/CD pipelines Familiarity with serverless architecture best practices Knowledge of AI development tooling in cloud environments Preferred Education and Experience: Bachelor’s or higher degree in a technical discipline 8+ years of professional experience in software engineering, with a focus on full-stack and cloud-native solutions Other Requirements: Ability to work in an on-site environment in the centre of Warsaw Willingness to contribute to a dynamic, global team driven by innovation and excellence Bring your expertise to a role that truly makes an impact - apply now and help shape the future of financial technology!

🏢 Summary: Hybrid Lead Software Engineer role focused on providing hands-on technical leadership and architectural direction for a cloud-native background screening platform. The position combines Angular/NestJS full-stack development with team mentorship, Azure-based architecture, and CI/CD optimization. You will drive scalable, secure solutions while mentoring developers and collaborating with cross-functional international teams. 🗂️ Requirements: 7+ years of software development experience, Experience in Senior or Technical Lead role, Strong expertise in Angular (v2+), Strong expertise in TypeScript, Experience with NgRx state management, Hands-on experience with NestJS, Experience with PostgreSQL, Experience with Microsoft Azure and cloud-native architecture, Practical knowledge of Docker, Practical knowledge of Kubernetes, Experience with CI/CD pipelines, Experience with unit testing frameworks (Jasmine, Karma, Jest), Experience with TDD, Proven experience leading development teams, Strong architectural design and technical decision-making skills, Strong English communication skills 📃 Skills: Angular, TypeScript, NgRx, NestJS, Node.js, PostgreSQL, Azure, Docker, Kubernetes, CI/CD, HTML5, CSS3, SCSS, Jasmine, Karma, Jest, TDD, SOLID, DRY, Scrum 🏢 Description: We support recruitment for a US-based company that is a provider of mission-critical background screening solutions. They work with Fortune 100 clients helping them manage risk and hire the best talent. This role will provide you with an outstanding opportunity to work for an industry-leading company. With over 4500 employees from 30+ different nationalities, you will be working with a diverse bunch of creatives redefining the world of digital background check and verification services across the globe. As a Lead Software Engineer , you will provide hands-on technical leadership to an international development team based in Kraków. You will balance architecture and coding excellence with mentorship and team development, ensuring high-quality software delivery aligned with business priorities. You will collaborate closely with backend teams, Product Owners, and global stakeholders, influencing architectural decisions, improving engineering practices, and strengthening agile delivery standards. Key takeaways: Stack : Angular, TypeScript, NgRx, NestJS (Node.js), PostgreSQL, Microsoft Azure, Docker, Kubernetes, CI/CD Salary : 190 - 210 PLN net/h on B2B Working model: Hybrid - 1x weekly from the office on Al. Pokoju Location : Krakow, Poland Recruitment process: A call with a Motife recruiter (30 min) An online interview with a technical case (1.5h) Responsibilities: Technical Leadership & Architecture Drive architectural decisions focused on scalability, performance, and security Ensure alignment with cloud-native best practices (Azure environment) Oversee robust API integrations and seamless system communication Lead refactoring initiatives to improve codebase quality continuously Hands-On Development Contribute high-quality, production-ready code Support complex feature implementation and technical problem-solving Analyse and resolve production issues to maintain system stability Engineering Excellence Champion best practices (SOLID, DRY, design patterns) Conduct thorough code reviews Promote TDD and automated testing culture Improve CI/CD pipelines and deployment processes Team Mentorship & Agile Collaboration Mentor junior and mid-level developers through pair programming and feedback Actively support Scrum values and agile ceremonies Partner with Product Owners during refinement sessions to ensure feasibility and accurate estimations Foster a collaborative, inclusive, and growth-oriented engineering culture Requirements: Technical Expertise 7+ years of software development experience, including time in a Senior or Technical Lead role Strong expertise in Angular (v2+), TypeScript, HTML5, CSS3/SCSS, and state management (NgRx) Hands-on experience with NestJS and PostgreSQL Experience working with Microsoft Azure and cloud-native architecture Practical knowledge of Docker, Kubernetes, and CI/CD pipelines Experience with unit testing frameworks (Jasmine, Karma, Jest) and TDD Leadership Experience Proven experience leading development teams Strong background in architectural design and technical decision-making Ability to balance hands-on coding with strategic thinking Communication & Mindset Strong English communication skills (spoken and written) Collaborative and product-oriented mindset Passion for clean code, continuous improvement, and mentoring others Comfortable working in international, cross-functional environments What we offer: Hybrid work model (just 1 day a week from the office) Modern office space and high-quality equipment Opportunity to play a key role in a global technology transformation If you are looking for corporate benefits, we provide paid access to private medical healthcare, life insurance and Multisport card

🏢 Summary: Lead Software Engineer role focused on hands-on development and architectural leadership within a cloud-native background screening platform. The position combines Angular and NestJS development with technical mentorship and ownership of scalable, secure solutions in Azure. You will drive engineering excellence, improve CI/CD processes, and lead an international team in delivering high-quality software. 🗂️ Requirements: 7+ years software development experience, Experience in Senior or Technical Lead role, Strong expertise in Angular (v2+), Proficiency in TypeScript, HTML5, CSS3, SCSS, Experience with NgRx state management, Hands-on experience with NestJS, Experience with PostgreSQL, Experience with Azure cloud environment, Practical knowledge of Docker and Kubernetes, Experience with CI/CD pipelines, Experience with unit testing frameworks, Knowledge of TDD practices, Strong architectural design experience, Experience leading development teams 📃 Skills: Angular, TypeScript, NgRx, NestJS, NodeJS, PostgreSQL, Azure, Docker, Kubernetes, CICD, Jasmine, Karma, Jest, HTML5, CSS3, SCSS, TDD, SOLID, Scrum 🏢 Description: We support recruitment for a US-based company that is a provider of mission-critical background screening solutions. They work with Fortune 100 clients helping them manage risk and hire the best talent. This role will provide you with an outstanding opportunity to work for an industry-leading company. With over 4500 employees from 30+ different nationalities, you will be working with a diverse bunch of creatives redefining the world of digital background check and verification services across the globe. As a Lead Software Engineer , you will provide hands-on technical leadership to an international development team based in Kraków. You will balance architecture and coding excellence with mentorship and team development, ensuring high-quality software delivery aligned with business priorities. You will collaborate closely with backend teams, Product Owners, and global stakeholders, influencing architectural decisions, improving engineering practices, and strengthening agile delivery standards. Key takeaways: Stack : Angular, TypeScript, NgRx, NestJS (Node.js), PostgreSQL, Microsoft Azure, Docker, Kubernetes, CI/CD Salary : 190 - 210 PLN net/h on B2B Working model: Hybrid - 1x weekly from the office on Al. Pokoju Location : Krakow, Poland Recruitment process: A call with a Motife recruiter (30 min) An online interview with a technical case (1.5h) Responsibilities: Technical Leadership & Architecture Drive architectural decisions focused on scalability, performance, and security Ensure alignment with cloud-native best practices (Azure environment) Oversee robust API integrations and seamless system communication Lead refactoring initiatives to improve codebase quality continuously Hands-On Development Contribute high-quality, production-ready code Support complex feature implementation and technical problem-solving Analyse and resolve production issues to maintain system stability Engineering Excellence Champion best practices (SOLID, DRY, design patterns) Conduct thorough code reviews Promote TDD and automated testing culture Improve CI/CD pipelines and deployment processes Team Mentorship & Agile Collaboration Mentor junior and mid-level developers through pair programming and feedback Actively support Scrum values and agile ceremonies Partner with Product Owners during refinement sessions to ensure feasibility and accurate estimations Foster a collaborative, inclusive, and growth-oriented engineering culture Requirements: Technical Expertise 7+ years of software development experience, including time in a Senior or Technical Lead role Strong expertise in Angular (v2+), TypeScript, HTML5, CSS3/SCSS, and state management (NgRx) Hands-on experience with NestJS and PostgreSQL Experience working with Microsoft Azure and cloud-native architecture Practical knowledge of Docker, Kubernetes, and CI/CD pipelines Experience with unit testing frameworks (Jasmine, Karma, Jest) and TDD Leadership Experience Proven experience leading development teams Strong background in architectural design and technical decision-making Ability to balance hands-on coding with strategic thinking Communication & Mindset Strong English communication skills (spoken and written) Collaborative and product-oriented mindset Passion for clean code, continuous improvement, and mentoring others Comfortable working in international, cross-functional environments What we offer: Hybrid work model (just 1 day a week from the office) Modern office space and high-quality equipment Opportunity to play a key role in a global technology transformation If you are looking for corporate benefits, we provide paid access to private medical healthcare, life insurance and Multisport card

🏢 Summary: Hybrid React Team Lead role focused on leading the development of scalable web applications and managing a frontend team in a dynamic, product-oriented environment. The position combines hands-on React development with architectural decisions, state management design, and close collaboration with cross-functional teams. It requires strong expertise in modern frontend technologies, testing practices, and performance optimization. 🗂️ Requirements: 5+ years experience with JavaScript/TypeScript, 3+ years experience with React.js, Strong knowledge of React Hooks, Strong knowledge of Context API, Strong knowledge of Redux (Redux Toolkit preferred), Experience with frontend design patterns, Experience with clean code principles, Experience with RESTful APIs or GraphQL, Good knowledge of HTML5, Good knowledge of CSS3/SCSS, Experience with responsive design, Experience with component libraries and design systems, Familiarity with Webpack or Vite, Experience leading or mentoring developers 📃 Skills: JavaScript, TypeScript, React, Redux, ReduxToolkit, Hooks, ContextAPI, HTML5, CSS3, SCSS, REST, GraphQL, Webpack, Vite, Jest, ReactTestingLibrary, Storybook, MaterialUI, Tailwind, Next.js, Lighthouse, ChromeDevTools, WCAG 🏢 Description: Please note: This is a hybrid role – 3 days per week from the office in Warsaw. Overview We are a leader in AI-powered enterprise operations. We deliver digital solutions and consulting services that help companies grow and improve their performance. We use advanced technology to simplify processes, increase efficiency, and create new business opportunities, especially in private capital markets. Our ecosystem includes: PaaS (Platform as a Service) – an AI-based platform that improves workflows, provides useful insights, and supports value creation across portfolios. SaaS (Software as a Service) – a cloud platform that offers strong performance, smart tools, and scalable solutions. S&C (Solutions and Consulting Suite) – modular technology solutions that help manage, grow, and improve company performance. With more than 10 years of experience working with fast-growing companies and private equity-backed businesses, we combine strong industry knowledge with technology expertise to create real business value. The Opportunity We are looking for an experienced and motivated React Team Lead to lead the development of modern and scalable web applications. You will manage a team of React developers, support good frontend architecture practices, and make sure we deliver fast and high-quality user interfaces. The ideal candidate has strong experience with React (including Hooks and Context API), Redux, and frontend design patterns. You should feel comfortable working in a dynamic and team-oriented environment. Responsibilities Lead, mentor, and support a team of React developers through code reviews, 1:1 meetings, and practical guidance. Work closely with product managers, designers, and backend engineers to plan and prioritize features. Manage sprint planning, task estimation, and delivery timelines for the frontend team. Design and build complex user interfaces using React, Hooks, and Context API. Develop and maintain scalable state management solutions using Redux Toolkit. Apply modern frontend design patterns (such as container/presenter, compound components, render props, and HOCs). Build reusable component libraries and ensure alignment with the design system. Improve application performance, accessibility, and cross-browser compatibility. Promote best practices in code quality, testing, CI/CD, and documentation. Maintain strong unit and integration test coverage (e.g., with Jest and React Testing Library). Support frontend architecture decisions and evaluate new tools when needed. Requirements 5+ years of experience with JavaScript/TypeScript, including 3+ years with React.js Strong knowledge of React Hooks, Context API, and Redux (Redux Toolkit preferred) Experience with frontend design patterns and clean code principles Experience working with RESTful APIs or GraphQL Good knowledge of HTML5, CSS3/SCSS, and responsive design Experience with component libraries and design systems (e.g., Storybook, Material UI, Tailwind) Familiarity with build tools such as Webpack or Vite Experience leading or mentoring developers Nice to Have Experience with performance tools (e.g., Lighthouse, Chrome DevTools) Experience with SSR/SSG frameworks like Next.js Knowledge of accessibility standards (WCAG) Contributions to open-source frontend projects Why Join Us? We are looking for creative people who solve problems, learn quickly, and enjoy working in an open and diverse environment. We work hard, support each other, and also make time to enjoy what we do.

🏢 Summary: Frontend Team Lead role focused on leading the development of scalable, high-performance React applications in a hybrid work model. The position combines hands-on architecture and implementation with mentoring a frontend team and enforcing best practices in design patterns, testing, and CI/CD. The role requires strong expertise in modern React ecosystem and state management to drive frontend excellence. 🗂️ Requirements: 5+ years experience with JavaScript or TypeScript, 3+ years commercial experience with React.js, Strong knowledge of React Hooks and Context API, Strong experience with Redux and Redux Toolkit, Experience with frontend design patterns and clean code principles, Experience integrating REST or GraphQL APIs, Strong knowledge of HTML5 and CSS3 or SCSS, Experience with component libraries and design systems, Familiarity with Webpack or Vite build tools, Experience with unit and integration testing, Experience leading or mentoring frontend developers 📃 Skills: JavaScript, TypeScript, React, Hooks, ContextAPI, Redux, ReduxToolkit, HTML5, CSS3, SCSS, REST, GraphQL, Webpack, Vite, Jest, ReactTestingLibrary, Storybook, MaterialUI, Tailwind, Next.js, Lighthouse, ChromeDevTools, WCAG, CICD 🏢 Description: Frontend Team Lead (React) 📍 Warsaw Poland, Hybrid remote with 3 days from office 💼 Contract of Employment / Umowa o pracę 💰 Monthly compensation up to 8,000 USD About the Client Our Client is a leader in AI-powered enterprise operations, delivering digital solutions and consulting services that drive value and transform businesses. They specialize in using advanced technology to streamline operations, improve efficiency, and unlock new revenue opportunities, particularly within the private capital markets. Their integrated ecosystem includes PaaS - Platform as a Service, the Core Platform, an AI-native enterprise operations foundation built to optimize workflows, surface insights, and accelerate value creation across portfolios; SaaS - Software as a Service, a cloud platform delivering unmatched performance, intelligence, and execution at scale; and S&C - Solutions and Consulting Suite, modular technology playbooks designed to manage, grow, and optimize company performance. With over a decade of experience supporting high-growth companies and private equity-backed platforms, brings deep domain expertise and a proven ability to turn technology into a strategic advantage. The Role We are looking for an experienced and passionate React Team Lead to lead the development of modern, scalable web applications. You will guide a team of React developers, enforce best practices in frontend architecture and design patterns, and ensure delivery of high-performance user interfaces. The ideal candidate has strong expertise in React (including Hooks and Context API), Redux, and frontend design patterns, and thrives in a fast-paced, collaborative environment. Key Responsibilities Lead, mentor, and support a team of React developers through code reviews, 1:1s, and hands-on coaching. Collaborate with product managers, designers, and backend engineers to define and prioritize features. Own and manage sprint planning, task estimation, and delivery timelines for the frontend team. Architect and implement complex user interfaces using React, Hooks, and Context API. Maintain and evolve a scalable state management solution using Redux Toolkit. Enforce modern frontend design patterns (such as container/presenter, compound components, render props, and HOCs). Build reusable component libraries and maintain design system alignment. Optimize application performance, accessibility, and cross-browser compatibility. Drive best practices in code quality, testing, CI/CD, and documentation. Maintain high unit and integration test coverage (e.g., using Jest, React Testing Library). Contribute to frontend architecture decisions and evaluate new tools/libraries as needed. Requirements 5+ years of experience in JavaScript/TypeScript with 3+ years in React.js Strong expertise with React Hooks, Context API, and Redux (Redux Toolkit preferred) Proven experience with frontend design patterns and clean code principles Experience integrating with RESTful APIs or GraphQL Solid understanding of HTML5, CSS3/SCSS, and responsive UI design Experience with component libraries and design systems (e.g., Storybook, Material UI, Tailwind) Familiarity with build tools like Webpack, Vite, and bundler optimizations Experience leading or mentoring engineers in a team setting Nice to Have Familiarity with performance profiling tools (e.g., Lighthouse, Chrome DevTools) Experience with SSR/SSG frameworks like Next.js Knowledge of accessibility standards (WCAG) Contributions to open-source frontend libraries What’s Offered Monthly compensation up to 8,000 USD Opportunity to lead a specialized frontend team in a fast-growing tech company Real influence on frontend architecture and design patterns

🏢 Summary: Full-time hybrid Associate Frontend Team Lead role focused on leading a React development team, owning frontend architecture, and delivering high-performance web applications. The position combines hands-on coding with mentorship and technical leadership in building scalable, enterprise-grade AI-driven platforms. You will drive best practices in frontend design, state management, testing, and performance optimization. 🗂️ Requirements: 5+ years experience with JavaScript and TypeScript, Minimum 3 years experience with React.js, Strong proficiency in React Hooks and Context API, Experience with Redux and Redux Toolkit, Knowledge of frontend design patterns and clean code practices, Experience integrating REST or GraphQL APIs, Proficiency in HTML5, CSS3, SCSS, Experience with responsive UI development, Hands-on experience with component libraries and design systems, Familiarity with Webpack or Vite, Experience leading or mentoring developers, Experience with unit and integration testing 📃 Skills: JavaScript, TypeScript, React, ReactHooks, ContextAPI, Redux, ReduxToolkit, HTML5, CSS3, SCSS, REST, GraphQL, Webpack, Vite, Storybook, MaterialUI, Tailwind, Next.js, Jest, ReactTestingLibrary, Lighthouse, ChromeDevTools, WCAG, CICD 🏢 Description: 💰 Salary: 25,000-29,500 PLN/month 🌎 Hybrid from Warsaw, Poland 🕦 Full-time position, long-term ☑️ Contract of Employment We are looking for an Associate Frontend Team Lead to join our client, a technology company that builds AI-powered platforms and consulting solutions for enterprise operations, with a strong focus on the private capital sector. The company has over ten years of experience working with high-growth and PE-backed businesses, combining deep domain expertise with advanced technology to drive measurable results. In this role, the focus will be on leading a team of developers across front-end development, owning architectural decisions, and contributing directly to the codebase. You will mentor engineers and drive the delivery of high-performance web applications. Requirements: 5+ years of experience with JavaScript/TypeScript, including at least 3 years working with React.js Strong proficiency in React Hooks, Context API, and Redux (preferably Redux Toolkit) Demonstrated understanding of frontend design patterns and clean coding practices Experience integrating frontend applications with RESTful APIs or GraphQL services Solid knowledge of HTML5, CSS3/SCSS, and building responsive user interfaces Hands-on experience with component libraries and design systems (e.g., Storybook, Material UI, Tailwind) Familiarity with modern build tools such as Webpack and Vite, including optimization techniques Experience leading or mentoring developers within a team environment Nice to Have: Familiarity with performance analysis and profiling tools (e.g., Lighthouse, Chrome DevTools) Experience working with SSR/SSG frameworks like Next.js Understanding of web accessibility standards (WCAG) Contributions to open-source frontend projects or libraries Key Responsibilities: Guide and support a team of React developers through code reviews, one-on-one meetings, and practical coaching. Work closely with product managers, designers, and backend engineers to shape and prioritize features. Take ownership of sprint planning, task estimation, and meeting delivery deadlines for the frontend team. Design and build sophisticated user interfaces using React, including Hooks and the Context API. Develop and maintain a scalable state management approach using Redux Toolkit. Apply and promote modern frontend design patterns such as container/presenter, compound components, render props, and higher-order components. Create reusable components and ensure consistency with the overall design system. Improve application performance, accessibility, and compatibility across different browsers. Champion best practices for code quality, testing, CI/CD processes, and documentation. Ensure strong unit and integration test coverage using tools like Jest and React Testing Library. Participate in frontend architecture decisions and assess new tools and libraries when appropriate. Get to know DevsData: We are a technology consulting company and a recruitment agency, delivering software solutions to clients from Europe and the US. We work 100% remotely, in an international team, including people from Asia, London, or San Francisco. We employ people with experience in international corporations as well as students of the best technical and business universities.

🏢 Summary: Senior Full Stack Developer role focused on architecting and delivering high-performance web applications using React and Node.js. The position involves leading system design, building scalable front-end and back-end solutions, and overseeing cloud-based deployments and DevOps processes. The role includes technical ownership of microservices, APIs, databases, and application performance in a hybrid Warsaw-based setup. 🗂️ Requirements: 7+ years full stack development experience, 2+ years in senior or technical lead role, Expert-level React.js with Hooks and Redux, Advanced JavaScript ES6+ proficiency, Strong Node.js and Express.js experience, Experience designing REST or GraphQL APIs, Experience with OAuth, JWT, sessions, RBAC, Database design and optimization with PostgreSQL, MySQL, or MongoDB, Hands-on Docker experience, Experience with AWS, Azure, or GCP, CI/CD pipeline management experience, Proficiency with Git workflows, Bachelor’s or Master’s in Computer Science or related field 📃 Skills: React, Redux, JavaScript, HTML5, CSS3, Node.js, Express, GraphQL, REST, OAuth, JWT, RBAC, PostgreSQL, MySQL, MongoDB, Docker, Kubernetes, AWS, Azure, GCP, Git, CI/CD, Webpack, Babel, Vite 🏢 Description: 🧩 About the Company Our client is a rapidly growing US-based technology firm with global operations. With a strong commitment to innovation and quality engineering, the company is building a new engineering hub in Warsaw. This is your opportunity to join a high-performing team and play a pivotal role in developing next-generation digital solutions for the private capital markets. 📍 Location & Setup Start remotely and transition to a hybrid model based in Warsaw (3 days/week in the office in the coming months). 🧠 The Role: Senior Full Stack Developer (React & Node.js) We’re looking for an expert-level Senior Full Stack Developer with at least 7 years of professional experience in designing, architecting, and delivering high-performance web applications. You will take ownership of complex technical challenges across both the front-end and back-end, drive architectural decisions, and provide technical leadership and mentorship within the software development lifecycle. 🔧 Key Responsibilities Technical Leadership: Architect and develop scalable, responsive UIs with React.js, Redux, and modern JavaScript (ES6+). System Design: Design, build, and scale advanced server-side applications, microservices architecture, and RESTful/GraphQL APIs with Node.js and Express. Data Architecture: Lead database design, optimization, and integration strategies (PostgreSQL, MySQL, or MongoDB). Quality Assurance: Define testing strategies, write robust unit/integration tests, and establish efficient debugging protocols for the team. DevOps & Deployment: Oversee and optimize CI/CD pipelines, containerization using Docker, and cloud deployments. Agile Mentorship: Lead agile collaboration with product managers, designers, and engineers, while mentoring mid-level and junior developers. Performance: Proactively monitor system performance, identify bottlenecks, and maintain high-availability production-grade applications. Standards: Establish and maintain comprehensive technical documentation and coding standards. 📌 What We’re Looking For Front-End: Expert-level experience with React.js, Hooks, Redux, and complex component-based architecture. Deep mastery of HTML5, CSS3, and ES6+. Advanced configuration and optimization experience with build tools like Webpack, Babel, or Vite. Back-End: Senior-level proficiency in Node.js & Express.js for enterprise applications. Extensive API design and architecture experience (GraphQL highly preferred, alongside REST). Deep understanding and implementation experience with advanced security and authentication protocols: OAuth, JWT, sessions, and RBAC. Databases & DevOps: Proven experience in scaling and optimizing relational and non-relational databases (PostgreSQL, MySQL, or MongoDB). Solid hands-on experience with Docker; Kubernetes experience is highly advantageous. Demonstrated experience designing and deploying applications on cloud platforms (AWS, Azure, or GCP). Advanced proficiency with Git workflows and driving Agile/Scrum methodologies. 🎓 Qualifications Bachelor’s or Master’s in Computer Science or a related field. 7+ years of hands-on experience in full stack development. 2+ years of experience in a senior or technical lead capacity. Proven track record of architecting, deploying, and maintaining high-traffic production applications. 💡 Soft Skills Strategic, analytical thinker and highly effective problem-solver. Strong technical leadership, team collaboration, and cross-functional communication skills. Self-motivated with excellent time management and the ability to drive projects autonomously. Passion for continuous learning, adopting new technologies, and sharing knowledge with the team. 🎁 What’s Offered Competitive salary up to $6,200 USD/month. Hybrid remote role with 3 days form office in the heart of Warsaw Generous Paid Time Off (PTO). Comprehensive full benefits package. The unique chance to shape the technical foundation of a new engineering hub and lead high-impact projects. A supportive, innovation-driven work environment that values technical excellence.