Senior Full Stack Engineer

🏢 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: Senior Frontend Engineer role focused on building and scaling a modern fintech platform for managing corporate spending. The position involves leading development of React and TypeScript-based SPA applications, integrating with microservices and APIs, and driving performance and architectural improvements. You will collaborate cross-functionally while mentoring engineers and shaping scalable front-end solutions in a cloud-native environment. 🗂️ Requirements: 5+ years professional software engineering experience, Strong commercial experience with React, Strong expertise in TypeScript, Advanced knowledge of modern JavaScript (ES6+), Experience building large-scale SPA applications, Experience designing scalable front-end architectures, Experience working with APIs and microservices-based systems, Hands-on experience with front-end testing (unit, integration, e2e), Experience with CI/CD pipelines, Experience with AWS, Experience with Kubernetes, Professional English proficiency (min. B2), Fluent Polish, Residence in Poland 📃 Skills: React, TypeScript, JavaScript, ES6, SPA, REST, GraphQL, Microservices, CI/CD, AWS, Kubernetes, Testing, SSR 🏢 Description: Join a team building a modern fintech platform that helps businesses manage company spending more efficiently. The project focuses on developing a financial product that enables seamless integration of financial tools—including corporate cards, expense management, and invoice processing—directly with partner ecosystems such as banks, accounting platforms, and HR systems. The platform empowers companies to automate financial operations, simplify reconciliation processes, and gain full real-time visibility into their spending. Your tasks Lead initiatives focused on designing, building, and maintaining scalable front-end applications primarily using React and TypeScript Build modern, performant, and intuitive user interfaces for key areas of the fintech platform Collaborate closely with cross-functional teams across backend engineering, product, and design to deliver scalable product solutions Integrate front-end applications with microservices-based architectures and APIs (REST / GraphQL) Analyze application performance and implement optimizations to ensure high responsiveness, reliability, and scalability Participate in code reviews, architecture discussions, and post-mortems while mentoring other engineers Proactively address technical debt and guide the team through technical challenges, refactoring initiatives, and architectural migrations Requirements At least 5 years of professional software engineering experience, including strong commercial experience with React Strong expertise in TypeScript, modern JavaScript (ES6+), and building large-scale SPA applications Solid experience designing scalable front-end architectures using component-based and modular design principles Experience working with APIs and distributed systems in microservices-based environments Hands-on experience with front-end testing frameworks (unit, integration, e2e) and observability/monitoring tools Previous work with CI/CD pipelines, cloud environments such as AWS, and container orchestration platforms like Kubernetes Strong problem-solving skills, ownership mindset, and passion for mentoring and elevating engineering teams Professional English proficiency - minimum B2 Fluent in Polish required Residing in Poland required Nice-to-have requirements Previous experience in fintech or building financial products Understanding of payments, cards, expense management, or accounting-related domains Experience working in a scale-up environment Experience with GraphQL, SSR, performance optimization, or building design systems What we offer Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People If you want to work on systems with high operational significance — apply now!

🏢 Summary: The offer is for a Senior Frontend Developer responsible for building and maintaining user interfaces using React within AI-powered business platforms. The role focuses on developing high-quality, scalable front-end solutions with strong emphasis on TDD, performance, and cross-team collaboration. Candidates will work in an Agile environment delivering robust, user-friendly products. 🗂️ Requirements: 6+ years of experience with JavaScript and TypeScript, Strong knowledge of React.js and Redux, Understanding of JavaScript design patterns, Knowledge of functional programming, Knowledge of asynchronous programming, Experience with Git and branch management, Ability to debug front-end issues using debugging tools, Experience creating and integrating custom packages, Understanding of object-oriented programming in JavaScript, Hands-on experience with HTML5 and CSS3, Experience with Test-Driven Development (TDD), Experience with Continuous Integration, Familiarity with Agile development practices, Ability to write cross-browser compatible code 📃 Skills: JavaScript, TypeScript, React, Redux, Next.js, HTML5, CSS3, Git, TDD, CI, Agile 🏢 Description: Overview We are a company that leads in AI-powered business operations, providing digital solutions and consulting services that help businesses grow and improve. We focus on using advanced technology to make operations easier, increase efficiency, and create new opportunities, especially in private capital markets. Our services include: PaaS (Platform as a Service): Our main platform uses AI to improve workflows, generate insights, and help businesses grow faster. SaaS (Software as a Service): A cloud platform that offers strong performance, smart tools, and large-scale execution. S&C (Solutions and Consulting Suite): Flexible technology tools to manage, develop, and improve business performance. With over ten years of experience helping fast-growing companies and private equity-backed businesses, we bring deep knowledge and a proven track record of turning technology into a real advantage. Responsibilities Design and develop user interfaces using React. Implement and maintain test-driven development (TDD) and continuous integration. Work with project managers, analysts, and sales teams to deliver high-quality products on time. Follow best practices in testing, accessibility, and performance. Work closely with design, backend, QA, and product teams to build user-friendly solutions. Requirements 6+ years experience with JavaScript and TypeScript. Understand design patterns and how to use them in JavaScript. Experience with modern front-end frameworks like React.js + Redux; Next.js is a bonus. Knowledge of functional and asynchronous programming. Experience with Git and branch management. Ability to debug front-end issues and use debugging tools. Familiar with creating and integrating custom packages. Understand object-oriented programming concepts in JavaScript. Can work under pressure and meet tight deadlines. Hands-on experience with HTML5 and CSS3. Familiar with Agile development practices. Good communication and organizational skills. Able to write code that works across different browsers. Bachelor’s degree in Computer Science or similar is preferred. Why Join Us? We appreciate creative problem-solvers who learn quickly, work well in a diverse environment, and like to raise the standard for success. We work hard but also make sure to enjoy what we do.

🏢 Summary: Fullstack Engineer role focused on building and scaling a global data-driven insights platform using modern JavaScript technologies. The position involves developing backend and frontend services, designing scalable databases, and influencing system architecture. You will work on high-load systems, ensure code quality, and contribute to technical decisions and mentoring. 🗂️ Requirements: 5+ years of experience with JavaScript and Node.js, 3+ years of experience with TypeScript and React or Next.js, Hands-on experience with scalable backend systems, Experience designing SQL and NoSQL database schemas, Ability to optimize queries for high-load systems, Knowledge of web fundamentals and networking concepts, Understanding of OWASP security best practices, Experience with AWS cloud services, Experience writing unit, integration, and e2e tests, Professional proficiency in English 📃 Skills: JavaScript, Node.js, TypeScript, React, Next.js, REST, GraphQL, SQL, NoSQL, AWS, CORS, OWASP, Microservices, Serverless 🏢 Description: We’re building a data-driven insights platform used by professionals worldwide. Our mission is to turn complex data into actionable insights and empower teams to make better decisions. We value ownership, technical excellence, and collaboration . If you enjoy building scalable systems, mentoring engineers, and shaping software architecture, you’ll fit right in. 🎯 Your mission Develop and maintain backend and frontend services (REST/GraphQL APIs, React apps) Design scalable database schemas (SQL & NoSQL) and optimize queries for high-load systems Collaborate with product, design, and DevOps teams to deliver robust solutions Write clean, tested code (unit, integration, e2e) Influence architecture and technical decisions Mentor other developers and share best practices 📌 You should have 5+ years in JavaScript / Node.js 3+ years in TypeScript + React/Next.js Hands-on experience with scalable backend systems Knowledge of web fundamentals & networking (CORS, browser behavior) Understanding of security best practices (OWASP) Experience with cloud services (AWS preferred) Strong communication skills in English Ability to work independently and take ownership ✨ Nice to have Experience with microservices / serverless architectures Data pipelines, scraping, or data-heavy applications Team leadership or mentoring experience Exposure to AI/ML integrations 💡 Why join us High-impact role on a global data platform Work with modern technologies and best engineering practices Autonomy & ownership in your work Collaborative and experienced team Competitive employment package and benefits.

🏢 Summary: Lead Software Engineer role focused on designing and delivering scalable, secure, high-performance full-stack applications for enterprise and public sector clients. The position involves building modern frontend and backend systems, developing APIs and microservices, and supporting CI/CD, testing, and cloud environments. The role also includes technical leadership and mentoring within cross-functional teams. 🗂️ Requirements: Strong experience with JavaScript and TypeScript, Backend development experience with Node.js or Python, Experience with modern frontend frameworks, Knowledge of REST and GraphQL APIs, Experience with microservices architecture, Experience with cloud platforms (AWS, Azure, or GCP), Familiarity with CI/CD pipelines, Experience with testing frameworks, Understanding of security best practices, Understanding of performance optimization, Experience mentoring developers or leading technical initiatives 📃 Skills: JavaScript, TypeScript, Node.js, Python, React, Vue, Angular, REST, GraphQL, Microservices, AWS, Azure, GCP, CI/CD, Testing, Security, Performance 🏢 Description: International company delivering advanced internet connectivity solutions is looking for a Lead Software Engineer to help build scalable, secure, and high-performance digital products used by enterprise and public sector clients. Your responsibilities 🚀 Designing and developing modern full-stack applications Building scalable front-end solutions (React, Vue, Angular) Developing backend services and APIs (REST / GraphQL) Creating reusable components and microservices Supporting CI/CD, testing, monitoring, and automation Collaborating with Product and Design teams Mentoring engineers and supporting technical decisions Must have ✅ Strong experience with JavaScript / TypeScript Backend development experience (Node.js or Python preferred) Experience with modern frontend frameworks Knowledge of APIs, microservices, and cloud platforms (AWS, Azure, GCP) Familiarity with CI/CD and testing frameworks Understanding of security and performance best practices Experience mentoring developers or leading technical initiatives Nice to have ⭐ Experience with AI-driven tools Knowledge of design systems or distributed systems Advanced security knowledge What’s offered 🎁 International work environment Modern tech stack and large-scale systems Learning & development opportunities Competitive salary + private healthcare + pension plan Hybrid working model

🏢 Summary: Backend-heavy Fullstack Engineer role focused on building and scaling a cyber risk reporting platform used by US MSPs. The position centers on designing and owning Node/NestJS backend systems, including integrations, job queues, and data modeling, within a fast-paced product environment. You will work closely with a small, autonomous team shipping features every sprint using AI-assisted development tools. 🗂️ Requirements: Minimum 2 years commercial backend experience in Node.js or NestJS, Production experience designing schemas and writing database migrations, Hands-on experience building and debugging job queues, Experience integrating third-party APIs on the backend, Solid knowledge of TypeScript, Working experience with React, Practical experience with PostgreSQL, Practical experience with Redis, Experience using Docker, Use of AI development tools, Fluent English, Availability to work evening hours aligned with US (UTC-6) team 📃 Skills: Node.js, NestJS, TypeScript, React, PostgreSQL, Redis, Docker, BullMQ, TypeORM, Auth0, Swagger, Express, Fastify, ConnectWise, Autotask, Kaseya, Microsoft365, GoogleWorkspace 🏢 Description: We're The Digital Bunch, a cross-disciplinary digital consultancy with offices in Warsaw, Riyadh, Sydney, and London. We combine strategy, design, and technology to help companies grow. Software development is one of our core verticals, and we embed with product companies long-term as part of their engineering teams. This role is for our work on a cyber risk reporting platform. The product scans networks, endpoints, and cloud environments (Microsoft 365, Google Workspace), checks breach databases, and generates risk reports with an AI layer on top for analysis and recommendations. The reports are sold to MSPs in the US who use them to show clients where they stand on security. It's cyber tooling, nothing else. The platform has been live for 5+ years, was acquired last year by a larger company (100+ people), and is actively growing. New features ship every sprint. The codebase is mature but moves fast. You'd join a small team on our side: our CTO and one other developer. On the client side in Dallas there's a PM, QA, support, and two engineers, plus people from the parent company who rotate in when needed. Flat setup, a lot of independence. We write code with Cursor and Claude Code every day. Not as a gimmick, that's how we actually work. If you're already using AI tooling, good. If not, you'll pick it up in the first week. ⚠️ Read this first, this is a backend-heavy role Most of the interesting work lives on the server: job queues, third-party integrations, data modeling, async scans, report generation. The frontend matters, but it's not where you'll spend most of your time. If your experience is mostly React with some REST calls, this isn't the right role. We need someone who's actually built and owned Node/NestJS backends in production, schemas, queues, integrations, migrations, the whole thing. We're happy to consider someone with ~2 years of experience if those two years are genuinely backend-heavy. We're not happy to consider 6 years of frontend with a skills-list backend section. ⏰ Working hours, read this too The client team is in Dallas, Texas (UTC-6). You need to be available in the evenings: - Daily standups happen between 19:00–21:00 Polish time, 30–45 minutes - Monday planning runs at 23:00 Polish time - The rest of the day is yours. Most people work something like 12:00–20:00 or 14:00–21:00 - No weekends, no on-call If you can't do evenings, this isn't the right fit. Wanted to be upfront about that. 📌 The work You'll ship features across the full stack, weighted toward the backend: NestJS on the server, PostgreSQL and Redis underneath, React on the frontend. The backend integrates with 15+ external services (breach intelligence APIs, cloud provider APIs, PSA systems like ConnectWise), runs BullMQ job queues, and uses TypeORM and Auth0. There's always something new to wire up. About 10% of your time goes to triaging production issues reported by customers. That's engineering debugging, not answering support tickets. Small team means you have real input into what gets built and how. Nobody's handing you pixel-perfect Jira tickets. We ship behind feature flags, get it in front of users fast, and iterate. If you're the type who spends three weeks perfecting architecture before writing a line of code, this isn't your pace. First-day commits. Our CTO onboards you personally, but we expect you shipping from the start. 👉 What we're looking for - At least 2 years of commercial backend work in Node.js / NestJS (or a close equivalent, Express or Fastify with real production ownership). We'll ask about it. - You've designed schemas, written migrations, debugged queues, and integrated third-party APIs, not just consumed them from a frontend - Solid TypeScript and React. You don't need to be a CSS wizard, you need to be comfortable moving across the stack - Hands-on with PostgreSQL, Redis, Docker - You use AI tools for development (Cursor, Claude Code, Copilot, whatever works for you) - Fluent English, spoken and written. You're on daily video calls with Americans - Actually okay with working late Polish hours (see above) - Self-directed. Nobody assigns you tasks step by step 👍 Bonus points - Worked in cybersecurity, SOC/SIEM tooling, or compliance before - Know your way around BullMQ, TypeORM, Auth0, or Swagger codegen - Built integrations with PSA systems (ConnectWise, Autotask, Kaseya) or MSP-facing tooling - Worked with US-based teams or in product companies 🚫 Probably not for you if - Your CV lists React/Next/Tailwind projects and the backend section is a skills list with no project evidence - You've mostly consumed REST APIs, not built them - Your backend experience is a single side project or a bootcamp module - You want to spend most of your day on UI polish 🎉 What you get - 20,000–26,000 PLN net/month, B2B - Fully remote, or Warsaw office in central Warsaw (dogs welcome) - Long-term product work on a single platform, not project hopping - Latest hardware and tooling - Multisport card - Regular salary reviews - Referral bonuses 💃 Hiring process 1. Intro call with Alex (CTO). 15–30 min. We talk about the role, you ask questions, and we see if it makes sense for both sides. 2. Take-home task. Build a small full-stack app (React + NestJS). The NestJS side carries most of the weight. Capped at 2 hours. Use AI tools, we don't care how you get there, we care that it works and you understand it. 3. Live review. 60 min. You walk us through your code, we ask you to add a feature live (should take minutes with AI, not half an hour), then we talk architecture and how you think about systems. 4. Meet the client team. Short call with the Dallas side before we finalize.

🏢 Summary: Full-Stack Application Developer role focused primarily on building scalable service-layer APIs and integrations, with additional responsibility for developing React.js front-end features. The position combines backend engineering (REST/GraphQL, data persistence, messaging) with modern UI development in a hybrid work model. You will design secure, reliable systems used at scale within a global enterprise environment. 🗂️ Requirements: B.S. degree in Computer Science, Engineering, Mathematics, Physics or related technical field, Minimum 8–10 years of relevant software development experience, Strong experience building service layers and APIs (REST or GraphQL), Proficiency in at least one backend stack: Node.js or Java, Solid experience with React.js and TypeScript, Experience with SQL or NoSQL databases and data modelling, Experience implementing authentication and authorization mechanisms, Experience with unit testing and integration testing, Familiarity with CI/CD and modern DevOps practices, Professional English communication skills, Willingness to enter into employment contract 📃 Skills: Node.js, Express, NestJS, Java, SpringBoot, React, TypeScript, JavaScript, REST, GraphQL, SQL, NoSQL, PostgreSQL, SQLServer, MySQL, MongoDB, Kafka, Testing, CICD, DevOps 🏢 Description: Think start-up energy, backed by enterprise scale. We are building a modern platform within a global organization—combining the agility, ownership, and engineering freedom of a start-up with the stability and funding of an industry leader. You’ll work in a highly collaborative, international environment where your contributions directly shape real products used at scale. Who we are looking for Full-Stack Application Developer with a strong emphasis on the services layer (backend/API, integration, reliability) and a React.js UI. This role can be performed in a hybrid model, where you can balance work from home and office to match your needs and role requirements. What you will be responsible for Services Layer / Backend (Primary Focus) Design, build, and maintain service-layer components (RESTful APIs and/or GraphQL), including domain services, orchestration, and integrations. Implement authentication/authorization, request validation, error handling, and consistent API contracts. Develop data access and persistence logic using SQL and/or NoSQL stores; optimize queries and data models for performance and reliability. Build integration patterns (event-driven, async messaging, batch, streaming) as needed using tools like Kafka/MQ UI / Front-End (React.js) Develop and maintain UI features using React.js, TypeScript, and modern state management patterns. Collaborate with design/UX to build reusable components, ensure accessibility, and deliver responsive experiences. Integrate the UI with backend services using well-defined API contracts; implement client-side validation and error handling. Proficiency in one or more backend stacks, such as: Strong experience building service layers and APIs (REST/GraphQL), including secure and scalable design. Node.js (Express/NestJS) and TypeScript Java (Spring Boot) Solid experience with React.js, modern JavaScript/TypeScript, component patterns, and API integration. Experience with databases (e.g., PostgreSQL, SQL Server, MySQL, MongoDB) and data modelling. Strong testing discipline: unit testing and integration testing Familiarity with CI/CD, code quality tools, and modern DevOps practices. What we value These skills will help you succeed in this role: Ability to collaborate with stakeholders across functions and geographies. Strong analytical skills, with ability to collect, absorb, and analyze information quickly and independently. Good written and verbal communication skills (English is a must) High level of engagement Willingness to enter into contract for employment. Education&Other B.S. degree (or foreign education equivalent) in Computer Science, Engineering, Mathematics, and Physics or other technical course of study required. MS degree strongly preferred. Min. 8-10 years of relatable experience. Minimum Salary: ​ zł182,004 Annual The minimum salary quoted above applies to the role in the primary location specified. If the candidate ultimately works outside of this primary location, the applicable minimum salary may differ.​ Salary will be determined based on factors such as the position, type of work performed, individual skills, job description, working hours, diligence, initiative, self-management, length of employment, availability, and the quantity and quality of work delivered, as well as other objective and non-discriminatory criteria relevant to State Street employees.​ In addition to salary, employees are eligible to be considered for discretionary annual performance-based awards.​ ​ We Offer: ​ Permanent contract from day one​ Additional holidays (Birthday Day Off, 3rd and 5th year anniversary Day Off)​ Gold Medical Package for employees and their families (partner and children)​ Premium life insurance package and private pension plan​ Wide range of soft skills training, technical workshops, language classes and development programs​ Opportunities to volunteer your time to company-driven initiatives, employee networks or organizations of your choice​ Variety of well-being programs​ Additional benefits available depending on the seniority of the role About State Street Across the globe, institutional investors rely on us to help them manage risk, respond to challenges, and drive performance and profitability. We keep our clients at the heart of everything we do, and smart, engaged employees are essential to our continued success. We are committed to fostering an environment where every employee feels valued and empowered to reach their full potential. As an essential partner in our shared success, you’ll benefit from inclusive development opportunities, flexible work-life support, paid volunteer days, and vibrant employee networks that keep you connected to what matters most. Join us in shaping the future. As an Equal Opportunity Employer, we consider all qualified applicants for all positions without regard to race, creed, color, religion, national origin, ancestry, ethnicity, age, disability, genetic information, sex, sexual orientation, gender identity or expression, citizenship, marital status, domestic partnership or civil union status, familial status, military and veteran status, and other characteristics protected by applicable law.

🏢 Summary: Lead Software Engineer role focused on building scalable, secure, and high-performance full-stack applications for enterprise and public sector clients. The position involves designing modern frontend and backend solutions, developing APIs and microservices, and supporting cloud-based CI/CD environments. The role also includes technical leadership and mentoring while ensuring best practices in security and performance. 🗂️ Requirements: Strong experience with JavaScript, Strong experience with TypeScript, Backend development experience with Node.js or Python, Experience with modern frontend frameworks, Knowledge of APIs and microservices, Experience with cloud platforms (AWS, Azure, or GCP), Familiarity with CI/CD pipelines, Experience with testing frameworks, Understanding of security best practices, Understanding of performance optimization best practices, Experience mentoring developers or leading technical initiatives 📃 Skills: JavaScript, TypeScript, Node.js, Python, React, Vue, Angular, REST, GraphQL, Microservices, APIs, AWS, Azure, GCP, CICD, Testing, Security, Performance 🏢 Description: International company delivering advanced internet connectivity solutions is looking for a Lead Software Engineer to help build scalable, secure, and high-performance digital products used by enterprise and public sector clients. Your responsibilities 🚀 Designing and developing modern full-stack applications Building scalable front-end solutions (React, Vue, Angular) Developing backend services and APIs (REST / GraphQL) Creating reusable components and microservices Supporting CI/CD, testing, monitoring, and automation Collaborating with Product and Design teams Mentoring engineers and supporting technical decisions Must have ✅ Strong experience with JavaScript / TypeScript Backend development experience (Node.js preferred or Python) Experience with modern frontend frameworks Knowledge of APIs, microservices, and cloud platforms (AWS, Azure, GCP) Familiarity with CI/CD and testing frameworks Understanding of security and performance best practices Experience mentoring developers or leading technical initiatives Nice to have ⭐ Experience with AI-driven tools Knowledge of design systems or distributed systems Advanced security knowledge

🏢 Summary: Front-End Software Engineer role focused on building scalable, modern web applications within a cross-functional product team. The position involves developing reusable UI components, integrating with APIs, and ensuring high performance, accessibility, and security standards. You will work with modern frameworks and contribute to automation, CI/CD, and innovative digital solutions. 🗂️ Requirements: Strong knowledge of JavaScript, Strong knowledge of TypeScript, Commercial experience with React, Vue, or Angular, Understanding of component-based architecture, Experience with state management, Experience with REST or GraphQL APIs, Familiarity with CI/CD pipelines, Experience with modern front-end tooling, Experience with CSS frameworks, Knowledge of testing frameworks, Understanding of responsive design, Knowledge of accessibility standards 📃 Skills: JavaScript, TypeScript, React, Vue, Angular, REST, GraphQL, CI/CD, Tailwind, Jest, Cypress, Playwright, HTML, CSS 🏢 Description: We’re partnering with a global technology company delivering advanced connectivity and digital networking solutions for enterprise clients worldwide. The organization focuses on building scalable digital platforms, automation, and modern user experiences in an international, fast-paced environment. About the Role As a Front-End Software Engineer, you’ll join a cross-functional product squad responsible for creating modern, scalable, and user-friendly web applications. You’ll work closely with designers, back-end engineers, and product teams to deliver high-quality digital experiences and reusable UI solutions. Key Responsibilities Develop and maintain modern web applications using frameworks such as React, Vue, or Angular Build reusable UI components and contribute to shared front-end libraries Integrate applications with APIs and platform services Ensure high standards of performance, accessibility, responsiveness, and security Implement automated testing and support CI/CD processes Collaborate across teams to improve front-end standards, scalability, and delivery efficiency Contribute to innovative initiatives around automation, AI-enabled solutions, and digital product development Requirements Must Have Strong knowledge of JavaScript and TypeScript Commercial experience with React, Vue, or Angular Understanding of component-based architecture and state management Experience working with REST APIs / GraphQL Familiarity with CI/CD pipelines and modern front-end tooling Experience with CSS frameworks such as Tailwind or similar Knowledge of testing frameworks like Jest, Cypress, or Playwright Understanding of responsive design and accessibility standards Nice to Have Experience with design systems or component libraries Exposure to AI-related tools or modern developer productivity solutions Knowledge of observability or monitoring tools Experience with low-code platforms Awareness of front-end security best practices What’s Offered International and collaborative work environment Opportunity to work with modern technologies and large-scale digital platforms Professional growth and learning opportunities Competitive salary and benefits package Private healthcare Pension scheme Hybrid work model

🏢 Summary: A fully remote Full Stack Engineer role in a late-stage product company building a new engineering team in Poland. The position focuses on developing scalable, production-grade applications using TypeScript, React, and Node.js across the stack. Engineers collaborate cross-functionally to deliver end-to-end features with strong emphasis on quality, performance, and reliability. 🗂️ Requirements: Strong proficiency in TypeScript, Experience with React, Experience with Node.js or server-side TypeScript, Understanding of testing practices, Experience with CI/CD, Experience with version control, Ability to work in a collaborative, fast-paced environment 📃 Skills: TypeScript, React, Node.js, CI/CD, Git, APIs, Microservices, AWS, GCP, Azure, Testing 🏢 Description: A late-stage (Series D), well-funded product company is building a brand-new, fully-remote engineering team in Poland. We're looking for talented Full Stack Engineers who can build high-quality, scalable applications using TypeScript , React , and modern backend frameworks. You'll work closely with product, design, and other engineers to deliver features end-to-end. While financial markets experience is a plus, it is not required - strong engineering fundamentals matter more. We are open to candidates who specialize in only front-end or only back-end development, as well as true full-stack engineers. What You'll Do Design, build, and maintain production-grade applications using TypeScript across the stack. Develop intuitive, performant user interfaces using React and modern front-end tooling. Build and maintain backend services, APIs, and integrations (Node.js / TypeScript). Collaborate with product managers and designers to translate requirements into technical solutions. Write clean, testable, maintainable code with strong attention to performance and reliability. Participate in code reviews, architecture discussions, and continuous improvement initiatives. Troubleshoot issues across the stack and contribute to a culture of engineering excellence. Required Skills Strong proficiency in TypeScript . Experience with React for front-end development. Experience with Node.js , server-side TypeScript, or similar backend frameworks. Solid understanding of modern software engineering practices: testing, CI/CD, version control, code reviews. Ability to work in a fast-paced, collaborative environment. Nice to Have Experience working in financial markets , fintech, or trading systems. Familiarity with cloud platforms (AWS, GCP, Azure). Experience with microservices, event-driven architectures, or distributed systems. Exposure to data visualization libraries or real-time data applications. Experience with performance optimization on either the front-end or back-end.