Tech Lead (Node.js / React)

🏢 Summary: The offer is for a Tech Lead role combining hands-on development (primarily Node.js and React) with technical leadership across multiple projects and teams. The position focuses on system architecture, scalable solution design, and maintaining high engineering standards while coordinating cross-functional development efforts. It requires strong technical expertise and the ability to guide teams across diverse technology stacks. 🗂️ Requirements: 8+ years of software development experience, Proven experience as Tech Lead or similar role, Strong hands-on experience with Node.js, Strong hands-on experience with React, Experience in system design and software architecture, Ability to work across multiple technology stacks, Knowledge of CI/CD practices, Understanding of code quality standards, Experience with scalable systems 📃 Skills: Node.js, React, JavaScript, CI/CD, Architecture, SystemDesign, Scalability, CodeQuality 🏢 Description: Working as a Tech Lead, you will: Lead and coordinate the work of multiple development teams across different projects and technology stacks Act as a hands-on technical expert, contributing to development (primarily Node.js / React, with flexibility across other technologies) Design, review, and consult on system architecture and technical solutions Translate business requirements into scalable and maintainable technical implementations Collaborate closely with developers, providing guidance on complex technical challenges and best practices Build, grow, and structure engineering teams, including active participation in recruitment processes Allocate and staff projects using both existing team members and new hires Ensure alignment and consistency across projects in terms of technical standards and delivery quality Monitor progress, identify risks, and proactively communicate status to stakeholders Foster a strong engineering culture focused on ownership, quality, and continuous improvement About Chabre IT Services Chabre IT Services is a global professional IT services provider, building long-lasting relationships with Enterprises. We specialize in the delivery of tailor-made solutions,  smart outsourcing, try&hire, and success fee services. We are a smart IT boutique with unique knowledge, which will deliver your ideas into reality. About our Client Our client is a global technology and management consultancy specializing in driving digital transformation in the financial services industry. It operates at the intersection of business and technology by combining innovative thinking with unrivalled industry knowledge to deliver endto-end data-driven solutions and fast-track digital initiatives for banking and payments, capital markets, wealth and asset management, insurance, and the energy sector. Qualifications 8+ years of professional experience in software development Proven experience in a Tech Lead or similar leadership role Strong hands-on expertise in Node.js and React (experience with additional technologies is a plus) Ability to operate across multiple technology stacks and adapt to different project needs Experience in system design and software architecture Strong understanding of modern development practices, including CI/CD, code quality, and scalability Experience in team building, mentoring, and technical leadership Ability to communicate effectively with both technical and non-technical stakeholders Strong organizational skills and ability to manage multiple teams and priorities simultaneously Proactive mindset with strong ownership and problem-solving skills English proficiency at C1 level We offer Rate up to 170,00 PLN /h + VAT Remote work Subsidy for peripherals in the amount of 500,00zł Working tool (MacBook Pro or Lenovo Legion 5) Co-financing of courses related to the position Benefits: MultiSport, Medicover

🏢 Summary: The offer is for a Senior Front-end Developer responsible for building and maintaining modern web applications using React and Angular in an international, agile environment. The role focuses on developing new features, optimizing performance, ensuring high code quality through testing, and contributing to architectural decisions. It also involves working with APIs, real-time solutions, and CI/CD processes. 🗂️ Requirements: Minimum 5 years of experience as Front-end Developer, Strong knowledge of JavaScript (ESNext), Strong knowledge of TypeScript, Commercial experience with React, Commercial experience with Angular (2+), Strong knowledge of HTML and CSS, Experience with Responsive Web Design, Experience with REST or GraphQL APIs, Experience with testing frameworks, Experience with Docker, Experience with CI/CD tools, Understanding of application architecture, Experience with performance optimization, Good command of English 📃 Skills: JavaScript, TypeScript, React, Angular, HTML, CSS, RWD, REST, GraphQL, WebSockets, Jest, Vitest, Playwright, Cypress, Docker, Azure, CI/CD 🏢 Description: Working as a Senior Front-end Developer, you will: Design, develop, and maintain modern web applications using React and Angular (2+) Build new features and continuously improve existing functionalities Ensure high quality of code through testing (unit, integration, and end-to-end) Collaborate closely with cross-functional, international teams (developers, designers, Product Owners, domain experts) Contribute to architectural decisions and application performance optimization Work with APIs (REST, GraphQL) and real-time solutions (e.g. WebSockets) Support debugging and troubleshooting, including bug fixing when needed Create and maintain technical documentation Participate in agile development processes and CI/CD practices About Chabre IT Services Chabre IT Services is a global professional IT services provider, building long-lasting relationships with Enterprises. We specialize in the delivery of tailor-made solutions,  smart outsourcing, try&hire, and success fee services. We are a smart IT boutique with unique knowledge, which will deliver your ideas into reality. About our Client Our client is an international organization delivering advanced digital solutions in the areas of environmental analysis, engineering, and sustainability. They combine scientific expertise with modern technology to support global initiatives related to water and environmental management. The company operates in a highly collaborative, international environment and focuses on building impactful, data-driven products used worldwide. Qualifications At least 5 years of professional experience as a Front-end Developer Strong knowledge of JavaScript (ESNext) and TypeScript Solid experience with React and its ecosystem Experience with Angular (2+) Strong understanding of HTML, CSS, and Responsive Web Design (RWD) Good understanding of browser differences and application performance optimization Experience with testing frameworks (Jest, Vitest, Playwright, Cypress, or similar) Experience working with APIs (REST, GraphQL) Familiarity with Docker Experience with CI/CD tools (e.g. Azure DevOps) Strong understanding of application architecture and system stability Good command of English (both spoken and written) We offer Rate up to 150,00 PLN /h + VAT Remote/Hybrid work (occasional visits to the office in Rzeszów) Subsidy for peripherals in the amount of 500,00zł Working tool (MacBook Pro or Lenovo Legion 5) Co-financing of courses related to the position Benefits: MultiSport, Medicover

🏢 Summary: The offer is for a Senior Frontend Engineer responsible for designing and delivering scalable, high-performance Angular applications integrated with AWS-based backend services. The role involves building reusable UI components, developing Node.js services, and ensuring seamless frontend-backend integration in containerized cloud environments. It includes ownership of code quality, automated testing, and CI/CD processes within an agile setup. 🗂️ Requirements: 5+ years frontend or full-stack development experience, Strong expertise in Angular and TypeScript, Proficiency in HTML5 and CSS3, Experience with Bootstrap or component libraries, Practical experience with Node.js, Experience building or consuming REST APIs, Hands-on experience with AWS services integration, Experience with authentication mechanisms (OAuth, OIDC, JWT), Experience with automated testing tools, Experience with CI/CD pipelines, Experience with Git workflows 📃 Skills: Angular, TypeScript, HTML5, CSS3, Bootstrap, Node.js, REST, Express, NestJS, AWS, Cognito, APIGateway, S3, CloudFront, ECS, EKS, Fargate, OAuth, OIDC, JWT, Jest, Cypress, Playwright, CI/CD, Git 🏢 Description: Working as a Senior Frontend Engineer, you will: take ownership of designing and delivering modern Angular applications with a strong focus on scalability, performance, and usability build and maintain reusable UI components using TypeScript, Bootstrap, HTML5, and CSS3 integrate frontend applications with backend services hosted on AWS, including container-based environments develop and support Node.js services (e.g., REST APIs, BFF layers) to ensure smooth communication between frontend and backend collaborate closely with product, design, and engineering teams in an agile environment to translate requirements into working solutions troubleshoot complex integration challenges related to authentication, networking, CORS, and deployments ensure high code quality through peer reviews, automated testing, and continuous improvements contribute to CI/CD processes and promote best practices in testing, monitoring, and observability About Chabre IT Services Chabre IT Services is a global professional IT services provider, building long-lasting relationships with Enterprises. We specialize in the delivery of tailor-made solutions,  smart outsourcing, try&hire, and success fee services. We are a smart IT boutique with unique knowledge, which will deliver your ideas into reality. About our Client Our client is a global technology and consulting organization specializing in delivering complex IT solutions and digital transformation initiatives. The company supports enterprise clients in modernizing their platforms, leveraging cloud technologies, and building scalable, high-performance applications in dynamic, agile environments. Qualifications 5+ years of experience in frontend or full-stack development with strong ownership of delivered solutions strong expertise in Angular , TypeScript, HTML5/CSS3, and component libraries such as Bootstrap practical experience with Node.js and building or consuming REST APIs (e.g., Express, NestJS) solid understanding of integrating web applications with AWS services (e.g., Cognito, API Gateway, S3, CloudFront) experience working with containerized environments (ECS, EKS, Fargate) is a strong advantage hands-on experience with authentication mechanisms (OAuth, OIDC, JWT) strong debugging and problem-solving skills, especially across frontend-backend integrations experience with automated testing tools (e.g., Jest, Cypress, Playwright) and CI/CD pipelines familiarity with Git-based workflows and modern development practices excellent communication skills and ability to work in a collaborative, consulting-oriented environment We offer Rate up to 160,00 PLN /h + VAT Remote work Subsidy for peripherals in the amount of 500,00zł Working tool (MacBook Pro or Lenovo Legion 5) Co-financing of courses related to the position Benefits: MultiSport, Medicover

🏢 Summary: Senior Tech Lead role focused on leading engineering teams and defining technical strategy for digital transformation and automation projects. The position involves designing scalable cloud-based solutions using Node.js and React, overseeing architecture, code quality, and CI/CD processes. The role combines hands-on technical leadership with collaboration across international stakeholders. 🗂️ Requirements: Minimum 10 years experience in designing and delivering IT solutions, At least 3 years experience in Tech Lead role, Strong proficiency in Node.js and React, Practical experience with Azure or GCP, Experience with Kubernetes and Terraform, Experience implementing CI/CD pipelines, Experience managing distributed international teams, Higher technical education in Computer Science, Engineering, or related field, Familiarity with ITIL v4, DevOps, Agile, Kanban, Fluent English B2/C1 level 📃 Skills: Node.js, React, Azure, GCP, Kubernetes, Terraform, CI/CD, ITIL, DevOps, Agile, Kanban, JavaScript, Cloud 🏢 Description: We are seeking an experienced Tech Lead to play a pivotal role in leading and growing our engineering teams. The ideal candidate will combine deep technological expertise—especially in node.js/react and cloud solutions—with strong leadership and communication skills. You will be responsible for technical strategy, architecture, code quality, and mentoring, while collaborating with business stakeholders and supporting international projects. Our expectations - Minimum 10 years of experience in designing and delivering IT solutions, including at least 3 years in a leadership role (Tech Lead). - Strong proficiency in node.js/react - Practical experience with cloud platforms (Azure, GCP), Kubernetes, Terraform, CI/CD. - Proven ability to manage distributed and international teams, conduct code reviews, and mentor engineers. - Experience working in international environments and communicating with technical and business stakeholders. - Higher technical education (Computer Science, Engineering, Project Management). - Familiarity with ITIL v4, DevOps, Agile, Kanban methodologies. - Fluent English (B2/C1 level). Soft skills - Excellent communication and presentation skills. - Ability to work under pressure in a dynamic environment. - Proactive, goal-oriented, and problem-solving mindset. - Relationship-building skills with technical and business teams. Key tasks - Lead and mentor technical teams (Frontend, Backend, DevOps, QA) in digital transformation and automation projects. - Design and oversee scalable, secure solutions based on node.js/react and cloud components (Azure, Kubernetes, Terraform). - Implement and maintain CI/CD processes, test automation, monitoring, and deployment pipelines. - Conduct code reviews and ensure adherence to best practices in architecture and security. - Translate business requirements into concrete technical solutions and support pre-sales activities. - Coordinate knowledge transfer and onboarding for development teams. - Monitor project progress, report KPIs, and analyze risks. - Collaborate with international teams and stakeholders (Europe, USA, APAC). - Maintain project documentation and lead status meetings and retrospectives. - Foster a culture of innovation, continuous improvement, and high performance.

🏢 Summary: The offer is for a Frontend Engineer to design and build modern, secure user interfaces for an identity and access management platform. The role focuses on implementing authentication-related flows, integrating with Auth0 and REST APIs, and developing reusable, well-tested components using modern frontend practices. You will contribute to scalable, accessible, cloud-based applications in a collaborative Agile environment. 🗂️ Requirements: Strong commercial experience with TypeScript, Strong commercial experience with React, Experience building secure authentication flows (login, onboarding, account management), Hands-on experience with Storybook and component-driven development, Experience with automated testing (unit, integration, E2E), Experience integrating with Auth0 or other CIAM solutions, Solid understanding of REST API integration, Experience delivering scalable cloud-based web applications, Understanding of accessibility standards and tools, Experience working in Agile environments 📃 Skills: TypeScript, React, Auth0, CIAM, REST, Storybook, Vitest, Playwright, Testing, Accessibility, axe-core, Cloud, Agile 🏢 Description: Working as a Frontend Engineer, you will: design and develop modern front-end interfaces for an identity and access management platform implement user-facing flows such as login, onboarding, and account management integrate UI layers with authentication services (e.g. Auth0) and backend APIs collaborate closely with IAM and backend engineers to deliver cohesive, secure solutions build and maintain a reusable component library using Storybook ensure high code quality through automated testing (unit, integration, E2E) develop accessible applications, leveraging tools like axe-core for compliance contribute to improving UI consistency and developer experience across the platform participate in architectural discussions and propose front-end best practices support continuous improvement through knowledge sharing and collaboration About Chabre IT Services Chabre IT Services is a global professional IT services provider, building long-lasting relationships with Enterprises. We specialize in the delivery of tailor-made solutions,  smart outsourcing, try&hire, and success fee services. We are a smart IT boutique with unique knowledge, which will deliver your ideas into reality. About our Client Our client is a global technology and consulting organization delivering complex digital transformation initiatives for enterprise clients. They specialize in combining advisory, delivery, and managed services to drive measurable business outcomes. Qualifications strong commercial experience with TypeScript and React proven experience building secure authentication flows (login, onboarding, account management) hands-on experience with Storybook and component-driven development experience with automated testing tools such as Vitest, React Testing Library, and Playwright (or similar) experience integrating front-end applications with Auth0 or other CIAM solutions solid understanding of REST API integration experience delivering scalable, cloud-based web applications good understanding of accessibility standards and tools (e.g. axe-core) strong problem-solving and communication skills experience working in collaborative, Agile environments familiarity with identity and access management concepts is a plus We offer Rate: 140 - 160 PLN /h + VAT Remote work Subsidy for peripherals in the amount of 500,00zł Working tool (MacBook Pro or Lenovo Legion 5) Co-financing of courses related to the position Benefits: MultiSport, Medicover

🏢 Summary: The offer is for a .NET Developer role focused on building scalable, cloud-native applications using modern .NET technologies. The position involves end-to-end delivery, designing technical solutions based on business needs, and ensuring high code quality through testing and best practices. The role also includes working with microservices architectures and leveraging AI-assisted development tools in Agile environments. 🗂️ Requirements: Strong experience with .NET Core / .NET 6+, Experience with Azure and/or AWS, Experience with microservices architecture, Experience with distributed systems, Ability to design technical solutions from business requirements, Hands-on experience with integration and E2E testing, Knowledge of BDD testing approach, Focus on code quality and security best practices, Experience working in Agile environments, Familiarity with AI-assisted development tools 📃 Skills: .NET, .NETCore, C#, Azure, AWS, Microservices, DistributedSystems, REST, IntegrationTesting, E2E, BDD, Agile, AI 🏢 Description: Working as a .NET Developer, you will: develop and deliver high-quality solutions using modern .NET technologies take ownership of key components or subsystems within larger projects, supporting end-to-end delivery design and implement scalable, cloud-native applications (Azure or AWS) translate business needs into clear technical designs and architecture decisions collaborate closely with stakeholders, both technical and non-technical, across the full project lifecycle contribute to discovery, planning, and refinement of specifications and acceptance criteria ensure code quality through testing strategies (including integration and end-to-end tests) participate in architectural discussions and proactively propose improvements use AI-assisted development tools responsibly to enhance productivity and code quality support team members through knowledge sharing and contribute to continuous improvement About Chabre IT Services Chabre IT Services is a global professional IT services provider, building long-lasting relationships with Enterprises. We specialize in the delivery of tailor-made solutions,  smart outsourcing, try&hire, and success fee services. We are a smart IT boutique with unique knowledge, which will deliver your ideas into reality. About our Client Our client is a global technology and consulting organization delivering complex digital transformation initiatives for enterprise clients. They specialize in combining advisory, delivery, and managed services to drive measurable business outcomes. Qualifications strong experience with modern .NET (.NET Core / .NET 6+) solid understanding of cloud platforms (Azure and/or AWS) experience with microservices and distributed systems architecture ability to design technical solutions based on business requirements hands-on experience with testing approaches (e.g. integration, E2E, BDD) strong focus on code quality, security, and engineering best practices excellent problem-solving skills and ownership mindset ability to clearly communicate technical concepts to different audiences experience working in collaborative, Agile environments familiarity with AI-supported development tools and willingness to use them effectively proactive attitude towards learning and supporting team growth We offer Rate: 140 - 170 PLN /h + VAT Remote work Subsidy for peripherals in the amount of 500,00zł Working tool (MacBook Pro or Lenovo Legion 5) Co-financing of courses related to the position Benefits: MultiSport, Medicover

🏢 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: The role involves building and maintaining scalable backend systems using .NET technologies, designing REST and GraphQL APIs, and implementing real-time and AI-driven features. The position focuses on microservices architecture, cloud-native development in Azure, and CI/CD-based deployments. It requires strong backend expertise within Agile environments with emphasis on clean architecture and code quality. 🗂️ Requirements: 6+ years of experience with .NET (C#, ASP.NET Core), Experience with REST APIs and GraphQL, Knowledge of microservices architecture, Knowledge of CQRS and Clean Architecture, Experience with Azure, Experience with Docker, Experience with CI/CD pipelines, Experience with AI/LLM integrations, Proficiency with Git 📃 Skills: .NET, C#, ASP.NET, REST, GraphQL, SignalR, Microservices, CQRS, Azure, Docker, CI/CD, Git, LLM, AI 🏢 Description: Working as a Senior Backend Engineer, you will: Build scalable backend systems using .NET (C# / ASP.NET Core) Design and develop REST APIs and GraphQL integrations Implement real-time communication (SignalR) Work with microservices / modular monolith architecture (Clean Architecture, CQRS) Integrate AI features (LLMs, agent workflows) into backend systems Develop cloud-native solutions in Azure and manage deployments (Docker, CI/CD) Collaborate in Agile teams and ensure code quality through testing About Chabre IT Services Chabre IT Services is a global professional IT services provider, building long-lasting relationships with Enterprises. We specialize in the delivery of tailor-made solutions,  smart outsourcing, try&hire, and success fee services. We are a smart IT boutique with unique knowledge, which will deliver your ideas into reality. About our Client Our client is a global technology and management consultancy specializing in driving digital transformation in the financial services industry. It operates at the intersection of business and technology by combining innovative thinking with unrivalled industry knowledge to deliver endto-end data-driven solutions and fast-track digital initiatives for banking and payments, capital markets, wealth and asset management, insurance, and the energy sector. Qualifications 6+ years of experience with .NET (C#, ASP.NET Core) Experience with REST APIs, GraphQL, and system integrations Knowledge of architectural patterns (microservices, CQRS, Clean Architecture) Experience with messaging/event-driven systems is a plus Familiarity with Azure and containerization (Docker) Experience with AI/LLM integrations Good understanding of CI/CD and Git English at C1 level We offer Rate: 150 - 180 PLN /h + VAT Remote work Subsidy for peripherals in the amount of 500,00zł Working tool (MacBook Pro or Lenovo Legion 5) Co-financing of courses related to the position Benefits: MultiSport, Medicover

🏢 Summary: Backend Tech Lead role focused on leading and implementing a strategic rewrite of a core financial platform module into a modern, scalable architecture. The position combines hands-on Java/Spring Boot development with architectural decision-making, API design, and integration across multiple enterprise banking systems. It involves designing high-performance backend services handling large transactional and reporting datasets. 🗂️ Requirements: 7+ years backend or fullstack development experience, Strong Java expertise, Strong Spring Boot expertise, Experience designing REST APIs, Experience as Tech Lead or technical owner, Experience designing scalable and distributed systems, Strong relational database design skills (PostgreSQL), Experience with Elasticsearch or similar search technology, Experience integrating external systems via REST or GraphQL, Experience with Docker and Kubernetes, Experience with CI/CD pipelines, Knowledge of OAuth2 and OIDC, Working knowledge of React, Working knowledge of TypeScript, Experience handling large datasets with complex queries, Ability to lead architecture and mentor developers 📃 Skills: Java, Spring, SpringBoot, REST, GraphQL, PostgreSQL, Elasticsearch, Docker, Kubernetes, CI/CD, OAuth2, OIDC, React, TypeScript, SQL, Microservices, DistributedSystems 🏢 Description: Our client is an international financial technology company building solutions that support transaction communication, balances visibility, reporting, and integrations across multiple banking systems . We are looking for a Backend Tech Lead to join a strategic rewrite of a core platform module. The role combines technical leadership with hands-on backend development , helping redesign a legacy component into a modern, scalable architecture. You will work closely with product stakeholders, platform engineers, and frontend teams to design and implement reliable, high-performance backend services that integrate multiple enterprise systems. IN SHORT: 🌍 Remote work or on-site (Wrocław, Bielsko-Biała) – your choice! 💰 170 - 190 PLN/h + VAT ☑️ B2B contract Your Daily Missions Lead the design and development of backend services for a core platform rewrite. Design scalable services responsible for transactions, balances, statements, and reporting data . Define API contracts and integration patterns between backend services, frontend applications, and external enterprise systems. Make key decisions around data modeling, search/indexing strategies, and performance optimization for million-row datasets with complex filtering, sorting, and pagination . Support frontend teams by ensuring API-first design and smooth integration with React applications . Ensure engineering quality through code reviews, architecture discussions, and mentoring other developers . Collaborate closely with product, frontend, and platform teams to deliver robust, production-ready systems . The Essentials We're Seeking 7+ years of experience in backend or fullstack software development. Strong expertise in Java and Spring Boot , including designing modular backend services and REST APIs. Experience acting as a Tech Lead or technical owner responsible for architectural decisions. Solid experience designing scalable APIs and distributed systems . Strong understanding of data modeling in relational databases (e.g., PostgreSQL) and designing efficient query patterns. Practical experience with Elasticsearch (or similar search/indexing technologies) for filtering, search, and aggregation over large datasets. Experience designing hybrid data architectures combining multiple data sources . Experience working with external system integrations , including REST or GraphQL APIs. Familiarity with containerized environments (Docker, Kubernetes) and modern CI/CD pipelines. Understanding of security patterns in enterprise systems (OAuth2, OIDC, authentication and authorization flows). Working knowledge of React and TypeScript , enabling effective collaboration with frontend teams. Proven ability to break down complex architectural changes into manageable development phases . Experience using AI-assisted development tools (e.g., Cursor, Claude Code, or similar agentic coding tools) and openness to experimenting with AI-driven approaches to improve development efficiency and engineering workflows . Ability to combine hands-on engineering with technical leadership and mentoring . Nice-to-Haves Experience in FinTech, banking, or enterprise integration platforms . Experience with large-scale transactional or reporting systems . Experience with GraphQL integrations . Experience with data migration or legacy system modernization . Experience designing API-first platforms . Familiarity with observability practices (logging, metrics, tracing). Understanding of database partitioning and query optimization patterns . Reasons Why You Would Enjoy Working With Us We work in the latest technologies and with international clients, and our projects are polished from < to /> - learn about some of the projects we have completed. We organize TechTalks, meet-ups and create guilds where we exchange knowledge - you can learn a lot from your teammates. We have a close-knit team and we make sure to have regular integrations - we often go out to celebrate together. You can work remotely or choose to work from our offices in Wroclaw or Bielsko-Biala. However, we count on your openness to occasionally visit the office for team meetings or client visits, or possible occasional trips to the client's headquarters. You can adjust your working hours to suit your needs, starting your day between 7:00 and 10:00 am. You can work with great specialists in their fields who also have a sense of humor and other after-hours hobbies. It is the people who create the unique atmosphere and relaxed atmosphere at CSHARK. We have a flat structure - we are not a corporation and don't want to be one 🙃. We offer bonuses for employee referrals (from 3000 PLN to 7000 PLN). We organize remote English classes and provide access to the company library. You can also become an author/author of articles published on our technical blog - https://cshark.com/blog/ .