Full-stack Technical Lead (Java+React)

🏢 Summary: Senior Full-Stack Engineer (Backend-Leaning) role focused on building and scaling secure B2B SaaS platforms within an Azure cloud environment. The position involves developing Java/Spring Boot backend services, Angular frontend applications, and integrating event-driven and search capabilities. You will work closely with architecture leadership to deliver scalable, high-quality features in a mature enterprise ecosystem. 🗂️ Requirements: 6+ years experience in building B2B SaaS or enterprise systems, Strong expertise in Java and Spring Boot, Experience building secure REST APIs, Solid experience with Angular, Hands-on experience with Azure cloud services, Experience with Docker and CI/CD pipelines, Experience with PostgreSQL and Elasticsearch, Experience with Apache Kafka, Ability to design scalable and resilient backend architectures 📃 Skills: Java, OpenJDK, SpringBoot, REST, Angular, Azure, Docker, CICD, PostgreSQL, Elasticsearch, Kafka, SonarQube, DockerCompose 🏢 Description: N-iX is a global software development service company that helps businesses across the globe create next-generation software products. Founded in 2002, we unite 2,400+ tech-savvy professionals across 40+ countries, working on impactful projects for industry leaders and Fortune 500 companies. Our expertise spans cloud, data, AI/ML, embedded software, IoT, and more, driving digital transformation across finance, manufacturing, telecom, healthcare, and other industries. Join N-iX and become part of a team where your ideas make a real impact. We are seeking a highly skilled and motivated Senior Full-Stack Engineer (Backend-Leaning) with 6+ years of professional experience to join our growing core engineering team. In this role, you will be instrumental in designing, scaling, and maintaining our enterprise-grade financial SaaS platform. While you will work across the full stack, your core strength and primary focus will be on building robust, high-performance backend systems using Java and modern enterprise frameworks. Requirements & Qualifications: Experience: 6+ years of proven professional experience building robust B2B SaaS platforms or large-scale enterprise systems. Experience in the financial technology (FinTech) sector or building financial-grade systems is a strong plus. Core Backend Stack (Must-Have): Strong expertise in Java, Spring Boot, Axon Framework, PostgreSQL, Elasticsearch, and Apache Kafka. Testing Requirement (Must-Have): Proficiency in Groovy. Backend test coverage via Groovy is a mandatory part of the development process. Frontend Stack (Must-Have): Solid experience with Angular and TypeScript for building modern web applications. Infrastructure & DevOps (Must-Have): Hands-on experience with Docker Compose and Gradle. Nice-to-Haves: Working experience with Keycloak, SonarQube, OpenAPI/Swagger, SendGrid, and Playwright is a plus. Key Responsibilities: Design, develop, and maintain secure, scalable, and resilient backend services using Java (OpenJDK), Spring Boot and Axon Framework. Architect and optimize relational databases (PostgreSQL) and structured search solutions using Elasticsearch. Develop responsive and clean user interfaces using Angular and TypeScript, ensuring seamless integration with backend REST APIs. Implement event-driven patterns and messaging queues using Apache Kafka to ensure high-throughput communication. Write and maintain comprehensive backend test coverage using Groovy. This is a strict, mandatory part of our development lifecycle. Manage identity and access management solutions by leveraging Keycloak for financial-grade security and authentication. Maintain high code quality through rigorous testing, code reviews, and analysis via SonarQube. Containerize applications using Docker and Docker Compose, and manage CI/CD deployment pipelines within the Azure Cloud ecosystem. Collaborate closely with cross-functional teams to define OpenAPI/Swagger specifications and integrate third-party services like SendGrid.

🏢 Summary: Senior Java Full Stack Engineer role focused on end-to-end development of innovative applications in an XP environment. The position covers design, architecture, development, and DevOps with strong emphasis on microservices and cloud-based deployments. Work involves building reactive UIs and scalable backend services using modern Java and front-end technologies. 🗂️ Requirements: BS degree in Computer Science or equivalent experience, 5+ years full stack development experience, 5+ years Java and Spring development experience, 2+ years React or modern JavaScript framework experience, Experience with functional programming and Java Streams, 2+ years TDD/BDD experience with JUnit, Jasmine, Mockito, Protractor or Selenium, 2+ years experience with microservices architecture and Spring Boot or Spring Cloud, Experience with Jenkins and DevOps practices, Experience designing and deploying cloud or hybrid solutions, Experience with container platforms such as Kubernetes or Cloud Foundry, Knowledge of microservices design patterns including service discovery and circuit breaker 📃 Skills: Java, Spring, SpringBoot, SpringCloud, React, Kotlin, JUnit, Jasmine, Mockito, Protractor, Selenium, Kubernetes, CloudFoundry, Jenkins, Microservices, DevOps, TDD, BDD, JavaStreams, FunctionalProgramming, Cloud, XP 🏢 Description: #4992 Our client is a global integrated Shipping Services company, recognized for its independent and innovative approach. As a niche carrier, they operate select trades where they provide superior service, ensuring stability, reliability, and flexibility for their customers worldwide. By maintaining strategic partnerships with major carriers and offering alternative line structures, they stand out in a market dominated by alliances. We are seeking a Senior Java Full Stack Engineer to join our dynamic development team. This is a hands-on role involving the full development cycle- from design and architecture to development and deployment- with a focus on innovative applications. You will work in an XP environment, collaborating remotely with pairing practices to deliver high-quality solutions. Responsibilities : Full stack development of innovative applications using Java, Spring, and React. Own the entire development lifecycle, including design, architecture, development, and DevOps. Work in an XP environment with remote pairing. Develop reactive UIs and modern front-end experiences. Implement and maintain microservices-based architectures. Contribute to TDD/BDD development using frameworks such as JUnit, Jasmine, Mockito, Protractor/Selenium. Deploy and manage cloud/hybrid solutions and containerized applications (Kubernetes, Cloud Foundry). Apply design principles like service discovery, circuit breakers, and scalable microservices. Switch effectively between different technologies and tasks in a fast-paced environment. Requirements : BS degree in Computer Science or equivalent experience. 5–6+ years of full stack development experience. 5–6+ years of Java and Spring development; experience with Kotlin is an advantage. 2+ years of front-end development with React (or other modern JS frameworks). Experience with functional programming and Java Streams. 2+ years of experience in TDD/BDD using JUnit, Jasmine, Mockito, Protractor/Selenium. 2+ years of experience with microservices, Spring Boot/Cloud, and DevOps practices including Jenkins. Experience designing, developing, and deploying cloud/hybrid-based solutions. Experience with container-based environments (Kubernetes, Cloud Foundry). Familiarity with modern design patterns and architecture principles: microservices, service discovery, circuit breaker. Strong problem-solving skills, critical thinking, and ability to assess a broad range of information solutions. Excellent English communication skills (verbal and written). Nice-to-Have: Experience in Kotlin development. Experience in developing reactive UIs (Reactive JS).

🏢 Summary: Lead FullStack Engineer role focused on building and scaling high-traffic, public-facing web platforms for a major European online marketplace. The position involves full SDLC ownership, AI-assisted development, and delivering highly available, performance-optimized solutions using modern cloud and frontend technologies. Work includes backend and frontend development, cloud infrastructure, CI/CD, and integration of AI frameworks into the development workflow. 🗂️ Requirements: 5+ years of experience building reliable, scalable software systems, Strong knowledge of software architecture and design patterns, Proficiency in C# and TypeScript, Strong experience with SQL and NoSQL databases, Strong frontend development experience (HTML, CSS, JavaScript), Experience with React, Next.js, Vue.js or Angular, Experience with AI tools (ChatGPT, Codex) in development workflows, Experience with AI frameworks (Vercel AI SDK, LangChain), Experience with AWS, Terraform, Docker, Experience building and consuming APIs in service-based architectures, Experience with CI/CD pipelines, Experience with logging and monitoring tools (Datadog, NewRelic), Strong unit testing skills (backend and frontend), Experience with Git, Upper-intermediate English, Availability to work in required time zone (ET or 13:00–21:00 EET) 📃 Skills: C#, TypeScript, SQL, NoSQL, GraphQL, Redis, HTML, CSS, JavaScript, React, Next.js, Vue.js, Angular, ChatGPT, Codex, LangChain, Vercel, AWS, Terraform, Docker, Git, CI/CD, Datadog, NewRelic 🏢 Description: Аbout us: N-iX i s a software development service company that helps businesses across the globe develop successful software products. Founded in 2002 in Lviv, N-iX has come a long way and increased its presence in eight countries Poland, Ukraine, Sweden, Bulgaria, Malta, the UK, the US, and Colombia. Today, we are a strong community of 2,000+ professionals and a reliable partner for global industry leaders and Fortune 500 companies. About the client: Our customer is the European online car market, with over 30 million monthly users and a presence in 18 countries. As a Lead FullStack Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers. Responsibilities: Developing fast, high-traffic public-facing websites Explore new technologies and help the team to use them Work using AI tools and apply them to the SDLC Following software development best practices while delivering the work Following testing principles while testing your own code to ensure production readiness Follow the philosophy of: you-build-it-you-run-it (be responsible for the SDLC processes) Requirements: 5+ years developing reliable, highly available, and scalable software systems Strong understanding of software architecture and design patterns Firm grasp of clean code principles and coding standards Strong proficiency using AI tooling, such as ChatGPT/Codex, for rapid development Experience integrating AI tooling into your development environment for streamlined usage Experience with AI Frameworks like Vercel AI SDK, LangChain, etc. Strong proficiency with the following technologies: C#+Typescript Strong proficiency with SQL & NoSQL datastores (GraphQL, Redis) Strong proficiency with frontend development (HTML, CSS, JavaScript) Strong proficiency with component-based frameworks and SSR (Next.js/React or Vue.js) or Angular with the desire to learn React/ Vue.js. Hands-on experience developing and maintaining 3rd party content management systems Knowledge of modern cloud infrastructures and tools, such as AWS, Terraform, and Docker Experience with APIs and developing in a service-based application environment Experience building optimized UIs for performance Proficiency with version control systems such as Git Experience working within a formal CI/CD pipeline Experience with logging, monitoring, and alerting services like Datadog, Newrelic Solid approach to testing and ensuring quality of code, Unit testing, backend, and frontend At least Upper-intermediate English level This role requires mandatory timezone coverage: work must align with the Toronto (ET) timezone for LATAM hours and 13:00–21:00 EET for EU hours approximately. 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 *not applicable for freelancers

🏢 Summary: Platform Engineering role focused on building and operating core cloud infrastructure, enabling teams to deliver software quickly and reliably under a "you build it, you run it" approach. The position involves managing Kubernetes clusters, CI/CD platforms, and leading infrastructure migrations across AWS-based environments. Emphasis is placed on automation, scalability, observability, security, and infrastructure as code. 🗂️ Requirements: Strong understanding of IaaS concepts: compute, storage, networking, identity management, Hands-on experience with AWS cloud services, Expertise in Platform Engineering or DevOps principles, Deep knowledge of CI/CD processes and safe deployment practices, Experience with Infrastructure as Code using AWS CDK and Terraform, Strong experience with observability tools, Experience with GitHub Actions, Experience with Kubernetes administration, Ability to lead infrastructure migration projects, Knowledge of platform security best practices 📃 Skills: AWS, Azure, GCP, Kubernetes, Terraform, CDK, Akamai, Grafana, NewRelic, GitHubActions, CI/CD, IaaS, DevOps 🏢 Description: (5318) N-iX is a global software development service company that helps businesses across the globe create next-generation software products. Founded in 2002, we unite 2,400+ tech-savvy professionals across 40+ countries, working on impactful projects for industry leaders and Fortune 500 companies. Our expertise spans cloud, data, AI/ML, embedded software, IoT, and more, driving digital transformation across finance, manufacturing, telecom, healthcare, and other industries. Join N-iX and become part of a team where your ideas make a real impact. Our customer is the European online car market with over 30 million monthly users, with a market presence in 18 countries. The role: Become part of Platform Engineering team and enable engineering teams to deliver software quickly and reliably, living our “you build it, you run it” approach. We are responsible for internal core infrastructure products, like our centralized Kubernetes cluster and managed CI/CD solutions, used across 30+ teams. Topics like scalability, resilience, observability, and resource optimization are part of our daily conversations. We invest in self-service and a product mindset with an emphasis on developer experience to increase our impact. We also contribute to the improvement of the architecture, engineering practices, and processes across the company. Requirements: Strong understanding of core IaaS concepts such as compute, storage, networking, and identity management. Experience with IaaS cloud providers, particularly AWS (experience with Azure, GCP, etc., also considered). Expertise in Platform Engineering and/or DevOps principles, with a focus on automation and reliability. Excellent problem-solving and collaboration skills, with a solution-oriented mindset. Deep knowledge of CI/CD processes and best practices for safely deploying code. Cloud & CDN: Strong AWS expertise; hands-on experience with Akamai (or migrating from it to AWS) will be a huge advantage. IaC: Deep expertise in AWS CDK and Terraform. Observability: Strong experience with Grafana and New Relic. CI/CD: Proficiency with GitHub Actions. Responsibilities: Take ownership of the end-to-end operations of the products managed by your team. Keep your team's products up to date by leveraging a modern, state-of-the-art tech stack. Collaborate closely with an Engineering Manager and cross-functional tech teams to identify and solve critical problems. Influence architectural decisions, choose the right technologies, and develop infrastructure products that meet business needs. Lead key projects and initiatives, taking ownership of their successful execution. Be a bar-raiser within the company by defining and advocating best practices for safe code deployment. Develop the tools that empower teams to adopt these practices. Lead and execute infrastructure migration projects: Migration from Akamai to AWS; Migration from New Relic to Grafana; Migration from Terraform to AWS CDK (Infrastructure as Code). Resolve platform security tickets and ensure high standards of infrastructure protection. Build clear execution plans, align with cross-functional teams across multiple time zones, and share updates promptly.

🏢 Summary: Senior Java Full Stack Engineer role focused on end-to-end development of innovative applications within a global shipping services domain. The position covers full ownership of the development lifecycle, including architecture, DevOps, and XP-based remote pairing. It requires strong expertise in Java, Spring, React, microservices, and cloud-native technologies. 🗂️ Requirements: BS degree in Computer Science or equivalent experience, 5-6+ years of full-stack development experience, 5-6+ years of experience with Java and Spring, Experience with Functional Programming and Java Streams, 2+ years of front-end development with React, Experience with Reactive UI (Reactive JS), 2+ years of TDD/BDD using Junit, Jasmin, Mockito, Protractor or Selenium, 2+ years of experience with microservices architecture (Spring Boot/Cloud), Experience with DevOps practices and Jenkins, Experience designing and deploying cloud or hybrid solutions, Experience with container-based environments (Kubernetes, Cloud Foundry), Familiarity with microservices design concepts (service discovery, circuit breaker), Good English communication skills 📃 Skills: Java, Spring, React, JavaScript, Junit, Jasmin, Mockito, Protractor, Selenium, SpringBoot, SpringCloud, Kotlin, Jenkins, Kubernetes, CloudFoundry, Microservices, TDD, BDD 🏢 Description: We are looking for an experienced Senior Java Full Stack Engineer to join our development team. Our customer – integrated Shipping Services has set itself apart as an independent carrier with a fresh, unique approach. His strategy as a global niche carrier offers distinctive advantages to customers worldwide. We have created a smart, efficient network that ensures stable, reliable services, and we have made it our mission to focus on the needs of our customers, which stand at the heart of all our decisions. The main idea of our product operates in select trades, where it has a competitive advantage and where it can provide superior service. We maintain a flexible partnership approach with other major carriers, and our new line structure is a much-needed alternative to customers concerned about the current alliance-dominated market. Responsibilities: Hands-on full-stack development of innovative applications Owning the entire development cycle, including design, architecture, development, and DevOps Working in XP with Remote pairing Requirements: BS degree in Computer Science or equivalent combination of education and experience 5-6+ years of full-stack development 5-6+ years of experience in the following technologies: Java, Spring Experience with Functional Programming and Java Streams 2+ years of experience in front-end development with React Experience with developing a reactive UI (Reactive JS) 2+ years of experience in TDD/BDD development in the following frameworks: Junit, Jasmin, Mockito, Protractor/Selenium 2+ years of experience in micro-services-based architecture and tools (Spring Boot/Cloud) Experience in DevOps development and Jenkins Experience in development in Kotlin – an advantage Experience in designing, developing, and deploying cloud/hybrid-based solutions Experience in developing and deploying in container-based environments (Kubernetes, Cloud Foundry) Familiarity with the following design concepts: micro-services, service discovery, circuit breaker Self-starter with the ability to appropriately prioritize and plan complex work in a rapidly changing environment Versatility and the capability to switch easily between different tasks and technologies Experience in assessing a broad range of information solutions and products Strong critical thinker with problem-solving aptitude Good English - verbal and written 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 *not applicable for freelancers

🏢 Summary: Senior .NET Fullstack Engineer role focused on building scalable backend services and modern dashboards for client and internal products. The position involves designing REST APIs, applying Clean Architecture and DDD, and optimizing database performance. The engineer will contribute to system design and performance improvements within a cloud-based environment. 🗂️ Requirements: 7+ years of experience with .NET, Strong knowledge of C#, 3+ years of experience with React, TypeScript, or Angular, Experience with ASP.NET and Web API, Experience with MSSQL and Entity Framework, Experience with unit testing using xUnit, Experience with Docker and Git, Experience with Azure and Azure DevOps, Experience optimizing SQL queries and stored procedures, Knowledge of Clean Architecture and Domain-Driven Design 📃 Skills: C#, .NET, ASP.NET, React, TypeScript, Angular, MSSQL, EntityFramework, xUnit, Git, Docker, Azure, AzureDevOps, WebAPI, SQL, DDD 🏢 Description: #5349 N-iX is a global software development company, empowering businesses worldwide with next-generation tech solutions. Since 2002, we have grown into a team of 2,400+ experts with offices in Kraków, Warsaw, and Wroclaw, and an active Polish community. We deliver high-impact projects for Fortune 500 clients and industry leaders, offering flexible work formats (remote, office, or hybrid) and lots of growth opportunities. Join us to create technology that drives real change for businesses and people across the world. N-iX is looking for a Senior .NET Fullstack Engineer to join the team working on the customer's product. You will join a functional team focused on building advanced tools, dashboards, and UIs for both external clients and internal users. The team's recent achievements include developing a new Client Dashboard and an Analyst Dashboard that enables the Operations team to efficiently track tasks and monitor their SLAs. Responsibilities: Design and develop scalable backend services using .NET. Apply Clean Architecture and DDD (Domain-Driven Design) principles. Build REST APIs and model domain logic. Optimize SQL/EF Core data access, SQL queries, and stored procedures. Ensure high code quality through testing and reviews. Identify and address performance bottlenecks in APIs and database queries. Contribute to system design and performance improvements. Requirements: 7+ years of experience with .NET and strong knowledge of C# fundamentals. 3+ years of experience with React, TypeScript, or Angular. Must-Have Tech Stack: C#, .NET 8/10, ASP.NET , MSSQL, Web API, Entity Framework, xUnit. Tools & Infrastructure: Git, Docker, Azure, Azure DevOps, API GW, Datadog. Ability to work with a high level of autonomy and take full ownership of tasks. Strong self-management skills in an environment with no micro-management. C1 English level (both written and spoken). Nice-to-Have Skills: Familiarity with event-driven architectures or messaging systems (e.g., Azure ServiceBus).

🏢 Summary: The offer is for a Software Engineer to develop and maintain high-performance, cloud-native storage infrastructure and backend systems in Azure. The role covers full software development lifecycle responsibilities, including designing microservices, building APIs, and optimizing scalable distributed systems. The position involves working with C# and .NET technologies in a fast-paced environment, contributing to architectural decisions and mentoring other engineers. 🗂️ Requirements: 4+ years of software engineering experience in large-scale distributed systems, 4+ years of experience building resilient and highly available web services, Experience with architectural standards and technical design decisions, Experience in full-stack development, Degree in Computer Science (B.S., M.S., or PhD) or equivalent experience, Availability for shifted working hours with at least 4 hours overlap with PST time zone 📃 Skills: C#, .NET, ASP.NET, Azure, AKS, AzureAppServices, AzureBlobStorage, SQL, NoSQL, REST, gRPC, Microservices 🏢 Description: N-iX is a global software development service company that helps businesses across the globe create next-generation software products. Founded in 2002, we unite 2,400+ tech-savvy professionals across 40+ countries, working on impactful projects for industry leaders and Fortune 500 companies. Our expertise spans cloud, data, AI/ML, embedded software, IoT, and more, driving digital transformation across finance, manufacturing, telecom, healthcare, and other industries. Join N-iX and become part of a team where your ideas make a real impact. Our Client is looking for a self-motivated Software Engineer to join us in developing storage infrastructure to organize and facilitate our business growth. Our team is the center of how customers and services store their critical data and trust its security, performance, availability, compliance, and durability, which enables customer derive intelligence and analytics through AI & BI. As a Software Engineer , you will own all aspects of the software development lifecycle, including design, development, testing, deployment, and maintenance of product features in the Client's software products. You enjoy fast-paced entrepreneurial environments where you can solve difficult problems using current technologies and tools. You collaborate well with other team members when brainstorming, designing, and implementing new solutions. You will also help the team succeed by thinking about ways to improve processes, suggesting ways to make the team more effective, and mentoring and modeling engineering best practices. Responsibility: Design, develop, and maintain high-performance backend systems and APIs using C# and .NET technologies, hosted in Azure and various compliance-level data centers Leverage Azure services like Azure App Services, Azure Kubernetes Service (AKS), Azure Blob Storage, and SQL/No-SQL Databases to build scalable, secure, and reliable cloud-native solutions Build and maintain microservices-based architectures using C#, ASP.NET , and others Design and implement RESTful or gRPC APIs, ensure seamless integration with other systems and products Optimize architecture and solution for scalability and availability, with cost and maintenance in mind Identify and address performance bottlenecks and scalability challenges proactively Align across teams for designs, communicate, and resolve roadblocks Guide and mentor other engineers through design and code reviews Shifted working hours with at least 6 hours of daily overlap with the PST time zone (Pacific Standard Time) Requirements: 4+ years of software engineering experience in large-scale distributed systems 4+ years of experience building resilient and highly available web services Experience in understanding architectural standards and decisions Experience in full-stack development B.S., M.S., or PhD in Computer Science or equivalent experience

🏢 Summary: Senior Front-End Engineer role focused on building core components of an AI-powered document processing and workflow automation platform for a global financial services organization. The position combines strong React/TypeScript front-end development with full-stack integration in a cloud-native environment. You will contribute to architecture, performance, security, and integration with AI-driven services. 🗂️ Requirements: 6+ years software engineering experience with strong front-end focus, Strong proficiency in React and TypeScript, Solid understanding of front-end architecture and state management, Experience integrating REST APIs, microservices, or event-driven systems, Experience with relational or NoSQL databases, Experience with cloud platforms (GCP, AWS, or Azure), Familiarity with CI/CD pipelines and Docker, Experience with Git and modern DevOps tools, Understanding of performance, scalability, and security principles, Experience working in agile cross-functional teams 📃 Skills: React, TypeScript, JavaScript, HTML, CSS, REST, Microservices, Python, FastAPI, Flask, Django, PostgreSQL, MySQL, MongoDB, Firestore, GCP, AWS, Azure, Docker, Git, CI/CD, PubSub, WebSockets, OAuth2, JWT, IAM, VertexAI, Gemini, LangChain 🏢 Description: (4579) N-iX is a global software development service company that helps businesses across the globe create next-generation software products. Founded in 2002, we unite 2,400+ tech-savvy professionals across 40+ countries, working on impactful projects for industry leaders and Fortune 500 companies. Our expertise spans cloud, data, AI/ML, embedded software, IoT, and more, driving digital transformation across finance, manufacturing, telecom, healthcare, and other industries. Join N-iX and become part of a team where your ideas make a real impact. Position Overview: Our client is a global UK-based financial services and investment banking organization developing an AI-powered document processing and automation platform used across multiple business units. The platform enables large-scale data processing, workflow automation, intelligent document recognition, and modern digital experiences for internal consumers across the banking group. We are looking for a Senior Front-End Engineer with solid full-stack capability to join a cross-functional engineering team building core components of the AI-driven document processing automation platform Key Responsibilities Build modern UI components and front-end features using React and TypeScript Develop reusable component libraries, design systems, hooks, and state management patterns. Work with product and design teams to translate workflows into high-quality user experiences. Integrate UIs with backend APIs, real-time events, and AI-driven document workflows. Ensure front-end performance, accessibility, responsiveness, and frontend security best practices. Collaborate with GenAI engineering teams to integrate document-processing functionality. Work with Google Cloud services such as Cloud Run, Cloud Functions, Pub/Sub, Cloud Storage. Participate in architectural discussions and technical decision-making across the platform. Write automated tests and contribute to CI/CD, code quality, and secure development practices. Requirements 6+ years of experience in software engineering with significant front-end focus. Strong proficiency in React and TypeScript Solid understanding of front-end architecture, state management, component lifecycles, and rendering models. Experience in consuming and integrating REST APIs, microservices, or event-driven systems. Experience with Python frameworks is a strong plus (FastAPI, Flask, Django). Experience with relational and/or NoSQL databases (PostgreSQL, MySQL, MongoDB, Firestore). Experience with cloud-native environments (GCP preferred; AWS/Azure acceptable). Familiarity with CI/CD pipelines, Docker, Git, and modern DevOps tooling. Strong software engineering principles: reliability, scalability, performance, security. Experience working in agile cross-functional teams on complex, multi-team products. Strong communication skills for working with technical and non-technical stakeholders. Nice to Have Experience integrating with AI/ML or GenAI-driven features. Experience with Vertex AI, Gemini, LangChain, or LLM-based services. Familiarity with event-driven systems, WebSockets, or Pub/Sub. Experience building internal tools, dashboards, or workflow automation systems. Knowledge of authentication and authorization standards (OAuth2, JWT, SSO, IAM). Understanding of OCR, document processing, or enterprise workflow products.

🏢 Summary: Senior Full Stack Team Lead role focused on building and scaling web applications using React and Node.js while leading a development team. The position combines hands-on front-end and back-end development with architecture design, API development, and deployment in cloud environments. You will drive technical decisions, ensure code quality, and oversee delivery of scalable, production-ready systems. 🗂️ Requirements: 7+ years full-stack development experience with React and Node.js, 2+ years experience in leadership or senior technical role, Strong experience with React.js, Redux, React Hooks, Strong knowledge of HTML5, CSS3, modern JavaScript, Proficiency in Node.js and Express.js, Experience building REST APIs, Experience with PostgreSQL or MySQL, Experience with authentication methods (OAuth, JWT, sessions), Experience with CI/CD and Docker, Experience working with production systems, Experience with Git, Understanding of Agile/Scrum methodologies 📃 Skills: React, Redux, JavaScript, HTML5, CSS3, Node.js, Express, REST, GraphQL, PostgreSQL, MySQL, OAuth, JWT, Docker, Kubernetes, AWS, Azure, GCP, Git, CI/CD, Webpack, Babel, Vite, MongoDB 🏢 Description: Overview We are a leading company in AI-based enterprise operations. We provide digital solutions and consulting services that help businesses grow and improve. We use modern technology to make processes simpler, increase efficiency, and create new ways to earn money, especially in private capital markets. Our ecosystem includes three main parts. First, PaaS (Platform as a Service) with the Orion Platform, which helps improve workflows, show useful insights, and support value growth across portfolios. Second, SaaS (Software as a Service), a cloud platform that offers strong performance and smart tools at scale. Third, our Solutions and Consulting Suite, which includes flexible technology solutions to manage, grow, and improve company performance. With more than 10 years of experience, we support fast-growing companies and private equity platforms, turning technology into a real business advantage. Responsibilities and Duties We are looking for an experienced Full Stack Team Lead with strong skills in React and Node.js. The right person has over 7 years of experience building high-quality web applications and has experience leading a team. You will guide developers, work on both front-end and back-end, take part in all stages of development, and support junior team members. Key Responsibilities Team Leadership & Mentorship: Lead and support a team of developers. Help them grow, review code, and give technical advice. Front-End Development: Build and maintain user interfaces using React.js, Redux, and modern JavaScript. Back-End Development: Create strong and scalable server applications and APIs using Node.js and Express. Integration: Work with database engineers to design databases and manage data using MongoDB or SQL. Application Architecture: Design scalable systems and microservices that meet business needs. Testing & Debugging: Write tests, fix issues, and improve performance. Support good testing practices. Deployment: Manage releases using CI/CD tools and Docker. Collaboration: Work with designers, product managers, and developers to create useful solutions. Communicate with both technical and non-technical teams. Maintenance: Monitor systems, fix problems, and improve applications. Documentation: Write and maintain technical documents for systems and APIs. Requirements Front-End: Strong experience with React.js, Redux, React Hooks, and component-based design Good knowledge of HTML5, CSS3, and modern JavaScript Familiar with tools like Webpack, Babel, or Vite Back-End: Strong skills in Node.js and Express.js Experience building and using APIs (GraphQL is a plus, REST is required) Knowledge of authentication methods like OAuth, JWT, and sessions Database: Experience with PostgreSQL or MySQL Additional Skills: Experience with Docker and Kubernetes is a plus Knowledge of cloud platforms like AWS, Azure, or GCP Experience with Git Understanding of Agile/Scrum methods Qualifications At least 7 years of experience in full-stack development with React and Node.js At least 2 years in a leadership or senior role Experience working with live production systems Bachelor’s degree in Computer Science or similar (preferred) Soft Skills Strong problem-solving and analytical thinking Good communication and teamwork skills Ability to work independently and manage tasks well Willingness to learn new technologies and improve continuously Why Join Us? We look for people who solve problems creatively, learn quickly, and enjoy working in an open and diverse team. We work hard, but we also like to enjoy what we do and aim for high results.

🏢 Summary: Senior Scala + Java Engineer role focused on designing and building scalable, event-driven backend systems for a large European online marketplace. The position involves working with functional programming principles, distributed systems, and cloud infrastructure to enhance performance and reliability. You will contribute to architectural decisions and improve CI/CD, observability, and system resilience. 🗂️ Requirements: 4+ years of backend development experience in Scala and Java, Strong commercial experience with Scala, Experience with Spring Boot, Experience with AWS or other cloud platforms, Experience with event-driven architectures, Hands-on experience with Typelevel ecosystem, Knowledge of Cats Effect, Strong understanding of functional programming, Experience building distributed systems, Strong knowledge of concurrency and asynchronous programming, Upper-intermediate English level 📃 Skills: Scala, Java, Spring, AWS, Kafka, Cats, Typelevel, CI/CD, Concurrency, DistributedSystems, FunctionalProgramming 🏢 Description: About us: N-iX is a software development service company that helps businesses across the globe develop successful software products. Founded in 2002 in Lviv, N-iX has come a long way and increased its presence in eight countries Poland, Ukraine, Sweden, Bulgaria, Malta, the UK, the US, and Colombia. Today, we are a strong community of 2,000+ professionals and a reliable partner for global industry leaders and Fortune 500 companies. About the client: Our customer is the European online car market with over 30 million monthly users, with a market presence in 18 countries. As a Senior Scala + Java Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers. Responsibilities Design and implement scalable backend services in Scala and Java Model complex business domains using strong type systems Build and maintain event-driven and distributed systems Contribute to architectural decisions around concurrency, streaming, and data consistency Write clean, testable, and maintainable code Improve CI/CD pipelines, observability, and system reliability Collaborate closely with product and platform teams Required Experience 4+ years of backend development experience in Scala and Java (main focus on Scala) Java Spring Boot experience Experience with Clouds, AWS preferably Familiarity with event-driven architectures (Kafka ) Hands-on experience with the Typelevel ecosystem Deep understanding of: Effect systems (Cats Effect); Functional programming principles; Type classes, higher-kinded types; Pure vs impure boundaries Experience building distributed systems Strong understanding of concurrency and asynchronous programming At least upper-intermediate English level Nice to Have Experience with Scala 3 Experience with PHP Knowledge of tagless-final patterns Experience in fintech or high-integrity domains Experience contributing to open source 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 *not applicable for freelancers