Senior Fullstack (React+Next.js+Node.JS) Engineer

🏢 Summary: Senior Front-End Engineer role focused on building and scaling a unified, widget-based micro-frontend platform for intelligent agreement management in a high-scale SaaS environment. The position involves developing secure, high-availability UI solutions with React, TypeScript, and Node.js, integrating AI-driven workflows, and supporting federal-grade, zero-trust architectures. Engineers contribute to CI/CD pipelines, observability, and performance optimization across global deployments. 🗂️ Requirements: 8+ years of software development experience, Proficiency in TypeScript, Proficiency in React, Experience building reusable front-end components, Experience with front-end testing libraries, Proficiency in NodeJS, Proficiency in Express, Proficiency in NextJS, Experience delivering SaaS products, Experience with version control and build processes, Experience with testing and code release processes, Experience building or consuming RESTful or gRPC services 📃 Skills: TypeScript, React, NodeJS, Express, NextJS, JavaScript, REST, gRPC, CI/CD, Micro-frontends, XML, JSON, ADO 🏢 Description: Over 1.5 million customers and more than a billion people in over 180 countries use Customer solutions to accelerate the process of doing business and simplify people’s lives. With intelligent agreement management, Client unleashes business-critical data that is trapped inside of documents. Until now, these were disconnected from business systems of record, costing businesses time, money, and opportunity. Using our product companies can create, commit, and manage agreements. Team Overview Our unified, widget‑based front-end platform that powers Intelligent Agreement Management (IAM) experiences across creation, sending, signing, and management—bringing consistent, modern UX to our most visible product surfaces. It standardizes how teams build UI via a shared shell and micro‑frontend architecture, with robust utilities and CI/CD that publish versioned widgets to our global CDN for reliable, high‑scale delivery. Engineers on our Team work at a meaningful scale—building experiences used by 1.7 million organizations—and integrate agreement‑centric AI to turn contracts into intelligent workflows. Joining our Team means shaping platform patterns, performance, and observability that accelerate how online signature works across the company.Our product also enable federal‑grade workloads without sacrificing developer velocity. Engineers here tackle secure‑by‑default patterns for identity, data handling, and observability—building on zero‑trust principles, strict network segmentation. You’ll design for high availability in constrained environments, optimize performance with privacy, and leverage automated compliance guardrails in CI/CD to ship with confidence. If you enjoy solving hard platform problems—telemetry without PII, resilient rollouts, deterministic builds, and least‑privilege runtime sandboxes. Requirements: 8+ years of development experience Proficient with TypeScript and the React framework Proficient in building reusable front-end components Proficient with front-end testing libraries Proficient with Express and NodeJS, Next JS Experience delivering a SaaS product Nice to have: Be open minded, forward thinking, and passionate about great software Experience with the entire software development lifecycle, including version control, build process, testing, and code release Experience with data modeling or schema languages, such as XML Schema or JSON Schema. Agile and Test-driven development methodologies Experience with ADO (Bonus) Experience with micro-frontend frameworks Experience building/consuming RESTful or gRPC web-services Strong communication skills, particularly in an asynchronous environment

🏢 Summary: Senior Frontend Platform Engineer role focused on building and scaling a secure, micro-frontend-based SaaS UI platform used in highly regulated, enterprise environments. The position involves developing reusable components, CI/CD pipelines, and high-availability frontend systems integrated with REST/gRPC services. Engineers shape platform standards, performance, and secure-by-default practices at global scale. 🗂️ Requirements: 8+ years of professional software development experience, Strong proficiency in TypeScript, Strong proficiency in React, Experience building production-grade reusable frontend component libraries, Experience with frontend testing frameworks and test automation, Solid experience with Next.js, Solid experience with Node.js, Solid experience with Express, Experience delivering SaaS products, Experience integrating with RESTful or gRPC services 📃 Skills: TypeScript, React, Next.js, Node.js, Express, JavaScript, REST, gRPC, CI/CD, Azure, JSON, XML, Micro-frontend, Agile, TDD 🏢 Description: #4727 Our Client is building a SaaS platform used globally to streamline business-critical workflows and transform document-driven processes into intelligent, automated systems. Their platform powers agreement lifecycle experiences at a massive scale, serving millions of organizations across highly regulated and enterprise environments. The team develops a unified, widget-based frontend platform that standardizes how product teams deliver modern, high-performance user interfaces. This platform provides a shared shell, micro-frontend architecture, and automated CI/CD pipelines that distribute versioned UI components globally with high reliability. Part of the work includes supporting secure, compliance-heavy environments designed for federal-grade workloads. Engineers design systems that are secure by default, privacy-aware, and built on zero-trust principles. The role involves solving advanced platform challenges such as resilient rollouts, deterministic builds, telemetry without exposing sensitive data, and high-availability architecture in constrained environments. This is an opportunity to shape platform standards, performance practices, and developer tooling in a system operating at meaningful scale. Responsibilities : Design and implement reusable frontend components within a micro-frontend architecture. Build and maintain a shared UI platform that enables consistent user experiences across products. Develop scalable CI/CD pipelines that publish versioned frontend artifacts for global delivery. Contribute to secure-by-default engineering patterns aligned with compliance requirements. Optimize performance, observability, and reliability across distributed frontend systems. Collaborate with cross-functional teams to define platform standards and engineering best practices. Integrate frontend systems with RESTful and/or gRPC backend services. Support high-availability deployments in regulated or restricted environments. Required Qualifications : 8+ years of professional software development experience. Strong proficiency in TypeScript and React. Experience building reusable, production-grade frontend component libraries. Experience with frontend testing frameworks and test automation. Solid experience with Next.js , Node.js , and Express . Proven track record delivering SaaS products. Preferred Qualifications : Experience across the full software development lifecycle. Familiarity with schema modeling (e.g., JSON Schema or XML Schema). Experience with Agile and test-driven development methodologies. Experience with Azure DevOps or comparable CI/CD tooling. Knowledge of micro-frontend frameworks. Experience building or consuming RESTful or gRPC services. Strong written communication skills in asynchronous environments. Passion for platform engineering and high-quality software craftsmanship.

🏢 Summary: Frontend Platform Engineer role focused on building a scalable, secure micro-frontend architecture for a global SaaS platform operating in regulated environments. The position involves developing reusable UI components, maintaining a shared frontend platform, and implementing robust CI/CD pipelines for high-availability deployments. The role emphasizes performance, security-by-default principles, and integration with backend services at enterprise scale. 🗂️ Requirements: 4+ years of professional software development experience, Strong proficiency in TypeScript, Strong proficiency in React, Experience building production-grade reusable frontend component libraries, Experience with frontend testing frameworks and test automation, Solid experience with Next.js, Solid experience with Node.js, Solid experience with Express, Experience delivering SaaS products, Experience integrating with RESTful or gRPC services, Experience working with CI/CD pipelines 📃 Skills: TypeScript, React, Next.js, Node.js, Express, CI/CD, REST, gRPC, Micro-frontend, JSON, XML, Azure, DevOps, Agile, TDD, Telemetry 🏢 Description: #4729 Our Client is building a SaaS platform used globally to streamline business-critical workflows and transform document-driven processes into intelligent, automated systems. Their platform powers agreement lifecycle experiences at a massive scale, serving millions of organizations across highly regulated and enterprise environments. The team develops a unified, widget-based frontend platform that standardizes how product teams deliver modern, high-performance user interfaces. This platform provides a shared shell, micro-frontend architecture, and automated CI/CD pipelines that distribute versioned UI components globally with high reliability. Part of the work includes supporting secure, compliance-heavy environments designed for federal-grade workloads. Engineers design systems that are secure by default, privacy-aware, and built on zero-trust principles. The role involves solving advanced platform challenges such as resilient rollouts, deterministic builds, telemetry without exposing sensitive data, and high-availability architecture in constrained environments. This is an opportunity to shape platform standards, performance practices, and developer tooling in a system operating at meaningful scale. Responsibilities Design and implement reusable frontend components within a micro-frontend architecture. Build and maintain a shared UI platform that enables consistent user experiences across products. Develop scalable CI/CD pipelines that publish versioned frontend artifacts for global delivery. Contribute to secure-by-default engineering patterns aligned with compliance requirements. Optimize performance, observability, and reliability across distributed frontend systems. Collaborate with cross-functional teams to define platform standards and engineering best practices. Integrate frontend systems with RESTful and/or gRPC backend services. Support high-availability deployments in regulated or restricted environments. Required Qualifications 4+ years of professional software development experience. Strong proficiency in TypeScript and React. Experience building reusable, production-grade frontend component libraries. Experience with frontend testing frameworks and test automation. Solid experience with Next.js , Node.js , and Express . Proven track record delivering SaaS products. Preferred Qualifications Experience across the full software development lifecycle. Familiarity with schema modeling (e.g., JSON Schema or XML Schema). Experience with Agile and test-driven development methodologies. Experience with Azure DevOps or comparable CI/CD tooling. Knowledge of micro-frontend frameworks. Experience building or consuming RESTful or gRPC services. Strong written communication skills in asynchronous environments. Passion for platform engineering and high-quality software craftsmanship.

🏢 Summary: Opportunity for a Lead Full Stack Engineer to provide technical leadership while building scalable, high‑performance applications using the Microsoft stack and modern cloud architecture. The role combines hands-on full stack development with active adoption of AI-assisted engineering practices across the SDLC. You will drive engineering excellence, mentor teams, and integrate AI capabilities into products and internal tools. 🗂️ Requirements: 7+ years experience with Microsoft stack (.NET, C#, SQL Server, T-SQL), Strong experience with .NET Core and Angular, Proficiency in JavaScript, HTML, CSS, Experience with Git, Experience designing scalable and maintainable systems, Knowledge of SOLID principles and design patterns, Experience with microservices architecture, Experience with Azure or other cloud platforms, Experience working in Scrum environments, Hands-on use of GenAI tools (Copilot, ChatGPT, Cursor) in SDLC, Experience integrating LLM APIs or AI capabilities into applications, Understanding of AI risks, testing, reviews, and compliance guardrails 📃 Skills: .NET, C#, SQL, T-SQL, .NETCore, Angular, JavaScript, HTML, CSS, Git, Azure, Microservices, SOLID, GenAI, LLM, Copilot, ChatGPT, Cursor 🏢 Description: About the Client: The Client provides comprehensive operational support and a range of expert services to the world’s leading insurers, brokers, fleet managers and automotive manufacturers. 3,300 employees across ten countries deliver exceptional standards on a large scale for over 1,200 clients. We help the global insurance market to handle millions of claims each year in the most cost-effective and efficient ways possible. The Client is embarking on an exciting and challenging transformation program and our software solutions are a driving force behind this strategy using cloud computing and leading-edge design patterns. Short Role Description: This is a great opportunity for an experienced Lead Full Stack Engineer to join our Software Development team as part of one of our established Scrum teams. Each agile team includes technical leadership, development, architecture, QA, product, and project management roles. We are looking for a strong engineering leader who combines deep hands-on development expertise with an AI-first mindset. This role requires an AI Champion — someone who actively applies AI tools across the Software Development Life Cycle and helps elevate engineering productivity, quality, and delivery standards through practical and responsible AI adoption. You will not only build high-performance applications, including high-traffic customer-facing platforms, but also act as a multiplier for engineering excellence by introducing modern practices, tools, and ways of working. Responsibilities: Provide technical leadership, mentorship, and hands-on support to engineers within the team. Design, develop, test, document, and maintain scalable backend and frontend solutions. Deliver high-quality, reusable, and maintainable code aligned with best engineering practices. Actively apply AI-assisted development approaches across design, coding, testing, and debugging. Drive improvements in engineering efficiency, quality, and delivery through practical AI usage. Produce clear and structured technical documentation. Provide realistic estimates and manage delivery timelines effectively. Participate in all Scrum ceremonies and contribute to team performance and continuous improvement. Coach teams on effective usage of GenAI tools and promote AI-first engineering culture. Requirements: 7+ years of experience with Microsoft development stack (.NET / C# / SQL Server / T-SQL). Strong experience with .NET Core, Angular, JavaScript, HTML, CSS, Git. Hands-on experience designing scalable and maintainable systems. Solid understanding of SOLID principles, design patterns, and microservices architecture. Experience working with cloud platforms (Azure preferred). Strong experience working in Scrum environments across different team setups. AI & Engineering Excellence Requirements: Proven hands-on experience using GenAI tools (e.g., Copilot, ChatGPT, Cursor, etc.) to improve development speed, code quality, testing, debugging, and documentation. Practical experience integrating LLM APIs or AI capabilities into applications or internal tools. Understanding of AI limitations, risks, and guardrails (testing, reviews, policies, compliance). Ability to introduce new tools and practices, influence teams, and scale adoption across engineering. Nice to Have: Experience building internal developer productivity tools or engineering automation solutions. Exposure to performance, scalability, and security requirements for large-scale platforms. Personal Attributes: Self-organising problem solver. Able to think outside the box (open thinking). Strong ability to work effectively in a team. Collaborating, motivating and energizing others (Team player). Encourage and drive others to deliver high-quality, cutting-edge software. You will have attention to detail and have a proactive ethos. Always looking for continuous improvement. Excellent verbal and written communication skills, in English. We offer*: Flexible working format - remote, office-based or flexible A competitive salary and good compensation package Personalized career growth Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more) Active tech communities with regular knowledge sharing Education reimbursement Memorable anniversary presents Corporate events and team buildings Other location-specific benefits

🏢 Summary: Software Engineer role on the Client team building secure browser extensions, desktop applications, CLI tools and SDKs for a global cybersecurity product. The position focuses on client-side engineering in a zero-trust, end-to-end encrypted environment with strong ownership across the full development lifecycle. Ideal for engineers who enjoy solving complex product and security challenges while contributing to open-source and high-quality software at scale. 🗂️ Requirements: 3+ years of experience building JavaScript applications in production, Strong client-side engineering experience with React or similar framework, Ability to design simple, robust solutions to complex problems, Experience writing and maintaining unit, integration and end-to-end tests, Ability to implement secure client-side business logic and data handling, Comfort collaborating across product, design and engineering, Interest in security, privacy or trustworthy software systems 📃 Skills: JavaScript, React, HTML, CSS, Storybook, Jest, WebdriverIO, OpenPGP, Git, Docker, Windows, macOS, Linux 🏢 Description: THE CLIENT Our client is a fast-growing cybersecurity product company rethinking how teams manage and share sensitive access. Their platform is trusted by 40,000+ organisations across 50+ countries - and growing fast. This is an engineering-led business: modern architecture, real technical challenges, and a strong focus on open source, privacy, and security. They’re building a fully remote, collaborative team and looking for engineers who take ownership and enjoy solving meaningful problems. If you want to work on a product with real impact at global scale - this is worth a conversation. THE ROLE: Our client is looking for a software engineer to join its Client team and help build the applications through which users experience the product, including browser extensions, desktop applications, command-line tools and SDKs. This is not a typical frontend role. Because their product is built around end-to-end encryption and a zero-trust model, their client applications carry significant responsibility for security, data handling and product behaviour. The role sits at the intersection of client engineering, product thinking, usability and security-sensitive application design. You would work on features used by a large open-source community, contributing across the full lifecycle: understanding the problem, shaping the approach, implementing the solution, testing it thoroughly and improving it over time. This role will suit someone who enjoys solving complex product problems, keeping solutions simple, and working in an environment where quality, openness and collaboration matter. RESPONSIBILITIES: Build and improve client applications across browser, desktop and adjacent client surfaces Translate product and user needs into secure, usable client-side solutions Implement and maintain business logic, local data handling and security-sensitive workflows on the client side Contribute to testing strategy across unit, integration and end-to-end levels Work closely with product, design and engineering peers to refine solutions before implementation Help improve code quality, performance, maintainability and documentation Contribute to open-source collaboration with the community where relevant CORE REQUIREMENTS 3+ years of experience building JavaScript applications in production Strong client-side engineering fundamentals with React or a similar framework Ability to break down complex problems and design simple, robust solutions Good testing habits and attention to quality Comfort working across product, engineering and implementation questions - not just coding tickets Strong collaboration skills, openness to feedback, and a low-ego working style Interest in security, privacy, or building trustworthy software systems NICE TO HAVE Experience building browser extensions, desktop applications or other multi-platform clients Experience with security-sensitive applications, client-side cryptography or zero-trust architectures Experience with design systems, Storybook or usability-focused product development Open-source contribution experience Experience maintaining long-lived software products Familiarity with other languages such as Go, Swift, C#, PHP, Python or Rust Tools and technologies you’ll work with: JavaScript, React, HTML/CSS, Storybook, Jest, WebdriverIO, OpenPGP-related tooling, Git and Docker across Windows, macOS and Linux environments. (We do not expect candidates to bring experience with every tool listed here) How you work You take ownership of problems, not just tasks You value simplicity and avoid over-engineering You work well in an environment where feedback is frequent and constructive

🏢 Summary: Software Engineer role focused on building and improving secure client applications including browser extensions, desktop apps, CLI tools and SDKs within a zero-trust, end-to-end encrypted product. The position combines client-side engineering, security-sensitive design and product thinking, contributing across the full development lifecycle. You will deliver secure, high-quality solutions used by a large global and open-source community. 🗂️ Requirements: 3+ years of production experience with JavaScript, Strong experience with React or similar framework, Solid client-side engineering fundamentals, Experience designing simple, robust solutions for complex problems, Hands-on experience with unit, integration and end-to-end testing, Ability to implement secure client-side data handling and business logic, Experience collaborating across product, design and engineering teams, Interest in security, privacy or secure software systems 📃 Skills: JavaScript, React, HTML, CSS, Storybook, Jest, WebdriverIO, OpenPGP, Git, Docker, Windows, macOS, Linux 🏢 Description: THE CLIENT Our client is a fast-growing cybersecurity product company rethinking how teams manage and share sensitive access. Their platform is trusted by 40,000+ organisations across 50+ countries - and growing fast. This is an engineering-led business: modern architecture, real technical challenges, and a strong focus on open source, privacy, and security. They’re building a fully remote, collaborative team and looking for engineers who take ownership and enjoy solving meaningful problems. If you want to work on a product with real impact at global scale - this is worth a conversation. THE ROLE: Our client is looking for a software engineer to join its Client team and help build the applications through which users experience the product, including browser extensions, desktop applications, command-line tools and SDKs. This is not a typical frontend role. Because their product is built around end-to-end encryption and a zero-trust model, their client applications carry significant responsibility for security, data handling and product behaviour. The role sits at the intersection of client engineering, product thinking, usability and security-sensitive application design. You would work on features used by a large open-source community, contributing across the full lifecycle: understanding the problem, shaping the approach, implementing the solution, testing it thoroughly and improving it over time. This role will suit someone who enjoys solving complex product problems, keeping solutions simple, and working in an environment where quality, openness and collaboration matter. RESPONSIBILITIES: Build and improve client applications across browser, desktop and adjacent client surfaces Translate product and user needs into secure, usable client-side solutions Implement and maintain business logic, local data handling and security-sensitive workflows on the client side Contribute to testing strategy across unit, integration and end-to-end levels Work closely with product, design and engineering peers to refine solutions before implementation Help improve code quality, performance, maintainability and documentation Contribute to open-source collaboration with the community where relevant CORE REQUIREMENTS 3+ years of experience building JavaScript applications in production Strong client-side engineering fundamentals with React or a similar framework Ability to break down complex problems and design simple, robust solutions Good testing habits and attention to quality Comfort working across product, engineering and implementation questions - not just coding tickets Strong collaboration skills, openness to feedback, and a low-ego working style Interest in security, privacy, or building trustworthy software systems NICE TO HAVE Experience building browser extensions, desktop applications or other multi-platform clients Experience with security-sensitive applications, client-side cryptography or zero-trust architectures Experience with design systems, Storybook or usability-focused product development Open-source contribution experience Experience maintaining long-lived software products Familiarity with other languages such as Go, Swift, C#, PHP, Python or Rust Tools and technologies you’ll work with: JavaScript, React, HTML/CSS, Storybook, Jest, WebdriverIO, OpenPGP-related tooling, Git and Docker across Windows, macOS and Linux environments. (We do not expect candidates to bring experience with every tool listed here) How you work You take ownership of problems, not just tasks You value simplicity and avoid over-engineering You work well in an environment where feedback is frequent and constructive

🏢 Summary: Senior .NET Developer role focused on building and scaling enterprise-grade systems in FinTech, HealthTech and AI domains for international and public sector clients. The position involves designing architecture, implementing robust integrations, and delivering high-availability solutions that pass audits and handle high traffic and large data volumes. Strong emphasis on clean architecture, asynchronous processing, and production-ready code. 🗂️ Requirements: Minimum 5 years of experience with .NET and C#, Experience building enterprise systems based on relational SQL databases, Experience with REST and SOAP APIs and system integrations using WebServices and XML, Experience developing multi-layer web applications hosted on IIS, Experience implementing background job processing and asynchronous communication, Ability to write unit and integration tests, Experience with CI/CD pipelines, Knowledge of Clean Architecture, CQRS and MediatR, Experience with high-availability systems operating 24/7, Experience with systems handling 200+ concurrent users and large XML message volumes 📃 Skills: .NET, C#, SQL, PostgreSQL, REST, SOAP, WebServices, XML, IIS, Hangfire, CI/CD, GitHubActions, AzureDevOps, CleanArchitecture, CQRS, MediatR, HA 🏢 Description: Tworzymy produkty z obszaru FinTech, HealthTech i AI (choć nie zamykamy się w sztywnych ramach). Pracujemy w modelach Team Augmentation oraz end-to-end, głównie dla klientów zagranicznych i sektora publicznego w Polsce. Nie opowiadamy historii o „innowacjach” ani „dynamicznym środowisku”. Interesuje nas konkret: kod, architektura i decyzje, które dowożą. Budujemy działające produkty, które przechodzą audyty, skalują się i realnie zdobywają rynek - nie kolejne slajdy ani sprinty do odhaczenia. Stawiamy na odpowiedzialność, techniczne myślenie i sensowną współpracę. A przy okazji - po prostu dobrze się u nas pracuje! Nasze must have Minimum 5 lat doświadczenia w pracy z .NET / C# Doświadczenie w budowie lub rozwoju systemów informatycznych klasy enterprise opartych o relacyjne bazy danych SQL (np. PostgreSQL) Doświadczenie pracy z REST API oraz SOAP, w tym integracji systemowych z wykorzystaniem WebServices i komunikatów XML Doświadczenie w budowie wielowarstwowych aplikacji webowych działających w środowisku IIS (IIS 8 / IIS 10) Doświadczenie w implementacji mechanizmów przetwarzania zadań w tle (np. Hangfire) oraz pracy z komunikacją asynchroniczną Umiejętność pisania testów jednostkowych i integracyjnych Doświadczenie w pracy z CI/CD (GitHub Actions, Azure DevOps) Znajomość Clean Architecture / CQRS / MediatR Doświadczenie w pracy nad systemami: obsługującymi 200+ jednoczesnych użytkowników przetwarzającymi duże wolumeny komunikatów (np. XML) działającymi w trybie wysokiej dostępności (HA) 24/7 Nice to have Doświadczenie pracy z React + TypeScript w projektach komercyjnych Znajomość Material UI / Tailwind / innej biblioteki UI Co możemy Ci zaproponować Współpracę w modelu B2B lub UoP Budżet szkoleniowy (do 2500 zł netto rocznie) Elastyczne godziny pracy i praca zdalna Multisport Plus i prywatna opieka medyczna

🏢 Summary: Development of enterprise-grade systems in FinTech, HealthTech and AI domains using .NET technologies. The role focuses on designing and delivering scalable, high-availability web applications and integrations that pass audits and handle high traffic and large data volumes. Work includes backend architecture, system integrations and maintaining production-ready solutions operating 24/7. 🗂️ Requirements: Minimum 5 years of experience with .NET and C#, Experience building enterprise systems based on relational SQL databases, Experience with REST and SOAP APIs and system integrations using WebServices and XML, Experience developing multi-layer web applications hosted on IIS, Experience implementing background job processing and asynchronous communication, Ability to write unit and integration tests, Experience with CI/CD pipelines using GitHub Actions or Azure DevOps, Knowledge of Clean Architecture, CQRS and MediatR, Experience with high-availability systems operating 24/7, Experience with systems handling 200+ concurrent users and large volumes of XML messages 📃 Skills: .NET, C#, SQL, PostgreSQL, REST, SOAP, WebServices, XML, IIS, Hangfire, Asynchronous, UnitTesting, IntegrationTesting, CICD, GitHubActions, AzureDevOps, CleanArchitecture, CQRS, MediatR, HighAvailability 🏢 Description: Tworzymy produkty z obszaru FinTech, HealthTech i AI (choć nie zamykamy się w sztywnych ramach). Pracujemy w modelach Team Augmentation oraz end-to-end, głównie dla klientów zagranicznych i sektora publicznego w Polsce. Nie opowiadamy historii o „innowacjach” ani „dynamicznym środowisku”. Interesuje nas konkret: kod, architektura i decyzje, które dowożą. Budujemy działające produkty, które przechodzą audyty, skalują się i realnie zdobywają rynek - nie kolejne slajdy ani sprinty do odhaczenia. Stawiamy na odpowiedzialność, techniczne myślenie i sensowną współpracę. A przy okazji - po prostu dobrze się u nas pracuje! Nasze must have Minimum 5 lat doświadczenia w pracy z .NET / C# Doświadczenie w budowie lub rozwoju systemów informatycznych klasy enterprise opartych o relacyjne bazy danych SQL (np. PostgreSQL) Doświadczenie pracy z REST API oraz SOAP, w tym integracji systemowych z wykorzystaniem WebServices i komunikatów XML Doświadczenie w budowie wielowarstwowych aplikacji webowych działających w środowisku IIS (IIS 8 / IIS 10) Doświadczenie w implementacji mechanizmów przetwarzania zadań w tle (np. Hangfire) oraz pracy z komunikacją asynchroniczną Umiejętność pisania testów jednostkowych i integracyjnych Doświadczenie w pracy z CI/CD (GitHub Actions, Azure DevOps) Znajomość Clean Architecture / CQRS / MediatR Doświadczenie w pracy nad systemami: obsługującymi 200+ jednoczesnych użytkowników przetwarzającymi duże wolumeny komunikatów (np. XML) działającymi w trybie wysokiej dostępności (HA) 24/7 Nice to have Doświadczenie pracy z React + TypeScript w projektach komercyjnych Znajomość Material UI / Tailwind / innej biblioteki UI Co możemy Ci zaproponować Współpracę w modelu B2B lub UoP Budżet szkoleniowy (do 2500 zł netto rocznie) Elastyczne godziny pracy i praca zdalna Multisport Plus i prywatna opieka medyczna

🏢 Summary: Middle/Senior Front-End Engineer role focused on building scalable React-based customer experiences for onboarding, pricing, subscriptions, and payments. The position combines hands-on product development, automated testing, code quality, and cross-functional collaboration in a large-scale global product environment. 🗂️ Requirements: 4+ years of commercial software development experience, Strong React, TypeScript, JavaScript, and RxJS expertise, Experience building scalable front-end applications, Experience with Jest, Karma, WebdriverIO, and Cucumber, Knowledge of code-quality practices and tools, including SonarQube and ESLint, Experience in product-oriented, Agile environments, Familiarity with modern development tooling and CI/CD practices, Upper-Intermediate English or higher 📃 Skills: React, TypeScript, JavaScript, RxJS, SonarQube, ESLint, Jest, Karma, WebdriverIO, Cucumber, CI/CD, Webpack, GitLab, ELK, Tableau, PNPM, Miro, Claude, Backend 🏢 Description: Join a product development team building customer-facing experiences used by millions of users worldwide. The role focuses on scalable Front-End solutions that improve onboarding, subscriptions, pricing, trial conversion, and payment flows. Customer An international product company operates a large-scale digital platform with millions of users globally. The organization invests in customer acquisition, onboarding, trial experiences, subscription management, and payment solutions, with an engineering and product culture focused on innovation, experimentation, and long-term growth. Project Join a product development team responsible for customer growth and experience optimization initiatives. The team works on strategic product areas including pricing evolution, onboarding journeys, trial conversion, and payment experience improvements. The project combines modern Front-End development practices with cross-functional collaboration and a data-driven product approach. Engineers contribute ideas, participate in technical discussions, and help improve development processes across teams. Requirements • 4+ years of commercial software development experience • Strong expertise in React, TypeScript, JavaScript, and RxJS • Experience building modern, scalable Front-End applications • Strong understanding of software quality practices and code-quality tools such as SonarQube and ESLint • Experience with automated testing frameworks including Jest, Karma, WebdriverIO, and Cucumber • Experience working in product-oriented companies and Agile development environments • Familiarity with modern development tooling and CI/CD practices • Ability to collaborate effectively within cross-functional teams • Good communication skills and a proactive mindset • Willingness to learn and contribute beyond Front-End development when needed • Upper-Intermediate English level or higher Will Be a Plus • Experience with Webpack • Familiarity with GitLab and GitLab CI • Experience using the ELK stack and Tableau • Knowledge of PNPM • Experience with collaboration tools such as Miro • Exposure to AI-assisted development tools such as Claude Code • Understanding of Back-End development concepts Personal Profile • Strong team player with a collaborative mindset • Product-oriented thinking and a customer-focused approach • Passion for learning and continuous improvement • Proactive attitude toward innovation and process enhancement • Ownership mentality and willingness to contribute to team success • Openness to knowledge sharing and mentoring culture Responsibilities • Develop and enhance customer-facing product features focused on onboarding, pricing, subscriptions, and payment experiences • Build scalable, maintainable, high-quality Front-End applications using React and TypeScript • Collaborate with Product Managers, Designers, QA Engineers, and Back-End Engineers in a cross-functional environment • Participate in technical discussions, architecture decisions, and solution design activities • Ensure code quality through testing, static-analysis tools, and engineering best practices • Write and maintain automated tests for UI and integration scenarios • Participate in peer code reviews and knowledge-sharing initiatives • Contribute to improving engineering processes, developer experience, and team collaboration • Support continuous improvement initiatives that increase engineering efficiency and product quality • Assist with Back-End-related implementation tasks when needed

🏢 Summary: Mid Full Stack Engineer role focused on building and improving AI-powered enterprise products across frontend and backend systems. The position involves developing web applications, APIs, and production features using modern technologies while collaborating closely with cross-functional teams. Candidates will work with AI development tools and contribute to scalable, high-quality software in a fast-growing environment. 🗂️ Requirements: 2–5 years of experience building production web applications, Knowledge of React, Knowledge of TypeScript or another modern frontend framework, Experience building backend services, Experience building REST APIs, Familiarity with testing and version control, Understanding of web application architecture, Understanding of client-server communication, Problem-solving skills, Attention to code quality, Strong communication skills, Experience using AI development tools, Willingness to collaborate across engineering, product, and design teams 📃 Skills: React, TypeScript, REST, Git, GitHub, Copilot, Claude, ChatGPT, Python, Node.js, AWS, GCP, Azure, Docker, CI/CD 🏢 Description: About Us Many companies want to use AI agents, but these agents often struggle with complex business tasks. We solve this problem by building a platform that understands company knowledge, policies, processes, and workflows, enabling AI to make reliable decisions instead of simply generating answers. Our technology helps businesses automate up to 85% of customer cases, reduce handling time by 20–25%, and complete tasks that previously took hours in just a few seconds. Our mission is simple: to give people better answers everywhere. About the Role We are looking for a Mid Full Stack Engineer who enjoys building products and solving real user problems. In this role, you'll work across both the frontend and backend, collaborating closely with engineers, product managers, and designers to deliver new features and improve existing ones. You'll have the opportunity to work with modern AI technologies, contribute to production systems, and grow your technical skills in a fast-moving environment. If you enjoy learning, shipping high-quality software, and working on products used by enterprise customers, we'd love to hear from you. Responsibilities - Build and maintain product features across both frontend and backend. - Develop user interfaces using modern frontend technologies. - Build and extend backend APIs and business logic. - Collaborate with engineers, product managers, and designers to implement new functionality. - Improve application performance, reliability, and usability. - Write clean, maintainable, and well-tested code. - Participate in code reviews and engineering discussions. - Help monitor production systems and improve features based on user feedback and product data. - Use AI development tools to improve productivity and software development workflows. Requirements - 2–5 years of experience building production web applications. - Good knowledge of React, TypeScript, or another modern frontend framework. - Experience building backend services and REST APIs. - Familiarity with modern software engineering practices, testing, and version control. - Understanding of web application architecture and client-server communication. - Good problem-solving skills and attention to code quality. - Strong communication skills and willingness to collaborate across engineering, product, and design teams. - Experience using AI tools such as GitHub Copilot, Claude Code, ChatGPT, or similar in day-to-day development. - Curiosity, ownership of your work, and a desire to continuously learn. Nice to Have - Experience with Python, Node.js, or both. - Experience working on AI-powered products or LLM integrations. - Familiarity with cloud platforms (AWS, GCP, or Azure). - Knowledge of Docker, CI/CD, or modern deployment workflows. - Understanding of performance optimization and accessibility best practices. What We Offer - B2B contract. - Company stock options. - MacBook Pro for work. - Modern technology stack with opportunities to contribute to open-source projects. - Access to advanced AI development tools, including GitHub Copilot, Claude Code, OpenAI Codex, TypingMind, and MCP Servers. - The opportunity to work on real AI products used by enterprise customers. - A collaborative engineering culture focused on learning, ownership, and continuous improvement. - The chance to grow your career alongside experienced engineers in a fast-growing AI company. Why Join Us Our leadership team brings deep experience in AI and knowledge management. We've raised over $60 million in funding and achieved three consecutive years of 3× growth. We believe great products are built by great teams, and our culture is shaped by these values: - Quality - We care about craftsmanship and building software that lasts. - Momentum - We move quickly, iterate often, and continuously improve. - Accountability - We take responsibility for our work, communicate openly, and support one another. - Hard Work - We believe ambitious goals require dedication and teamwork. - Learning Agility - We stay curious, embrace feedback, and continuously develop our skills. - Adapt and Thrive - We welcome change and see challenges as opportunities to improve. - Win Together - We succeed by collaborating, sharing knowledge, and helping each other grow.