Senior Full Stack (Python/Angular/React) Engineer

🏢 Summary: Full-time Senior Full Stack Developer role focused on building React and TypeScript interfaces, BFF services, and integrations with APIs, LLMs, and streaming endpoints. The position covers scalable frontend architecture, performance and resilience, and delivery of product features from prototype to production, with office work expected 2–3 days per week. 🗂️ Requirements: Strong hands-on TypeScript experience, Several years of software engineering experience, Strong React and modern frontend tooling experience, Frontend unit and integration testing experience, API design and development with NestJS and Node.js, Understanding of server-side rendering, Server Components, CDN strategies, and caching, Software architecture, clean code, and system design knowledge, Ability to work effectively amid uncertainty, Docker, Git, CI/CD, and Azure experience 📃 Skills: TypeScript, React, NestJS, Node.js, Docker, Git, CI/CD, Azure, Testing, SSR, CDN, Caching 🏢 Description: Role overview Svitla Systems Inc. is looking for a Senior Full Stack Developer for a full-time position (40 hours per week) in Kraków, Poland. Our client is a British wholesale distributor. You will be responsible for building user interfaces with TypeScript and React, developing and maintaining BFF services, integrating APIs and LLM services, designing scalable frontend architecture, optimizing application performance and user experience, implementing error handling and resilience patterns, and collaborating with product and engineering teams to deliver features from prototype to production. Office work is expected 2-3 days per week. Responsibilities Building user interfaces using TypeScript and React. Building and maintaining Backend for Frontend (BFF) services to orchestrate API calls and shape data for user interface needs. Integrating APIs, LLM services, and streaming endpoints to deliver product features. Designing and implementing scalable and maintainable frontend architecture. Ensuring performance, responsiveness, and optimal user experience across the application. Implementing error handling, loading states, and resilience patterns for distributed systems. Collaborating with product and engineering teams to bring concepts from prototype to production. Requirements Strong hands-on experience with TypeScript development. Several years of experience in software engineering, ideally with a strong focus on React and modern frontend development tools. Experience with frontend testing, including unit and integration testing. API design and development experience using NestJS and Node.js. Understanding of server-side rendering, Server Components, CDN strategies, and caching. Solid understanding of software architecture, clean code, and system design. Ability to work effectively in environments with a high degree of uncertainty and take a pragmatic, solution-oriented approach to problem-solving. Experience with Docker, Git, CI/CD, and Azure. Nice to Have Knowledge of GraphQL APIs. Experience with state management libraries (e.g. Zustand, React Query). Familiarity with Python, particularly in the context of working with backend services or AI-powered systems. Experience building data-intensive or real-time user interfaces. Familiarity with designing user experiences for AI-powered features or non-deterministic outputs. We offer US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in the workspace, either remote or in our welcoming office. Comprehensive medical insurance after one month. MultiSport card with access to 2500 sports facilities all over Poland Bonuses for recommendations of new employees. Bonuses for article writing, public talks, and other activities. 15 vacation days, 10 national holidays, 10 sick leaves, and family days off. Personalized learning program tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Welcome and anniversary presents, gifts for children, and more. Regular corporate events and meetups. Awesome team, friendly and supportive community!

🏢 Summary: Full Stack Engineer role focused on building secure, scalable digital-asset solutions using Angular, C#/.NET, Azure, APIs, and DLT/blockchain integrations. The position works in an agile environment to deliver end-to-end applications and support cloud deployments, testing, and technical design. 🗂️ Requirements: Bachelor’s or Master’s degree in Computer Science, IT, or related field, Strong Full Stack development experience, Angular frontend expertise, TypeScript, HTML, and CSS proficiency, C#/.NET backend development expertise, REST API and microservices development experience, Azure cloud services and DevOps tooling experience, API and integration-services design and consumption experience, SDLC and Agile methodology understanding, DLT, blockchain, or digital-asset platform knowledge or experience, CI/CD, Git, and automated-testing framework familiarity, Strong problem-solving and analytical skills 📃 Skills: Angular, TypeScript, HTML, CSS, C#, .NET, REST, Microservices, Azure, DevOps, DLT, Blockchain, CI/CD, Git, Testing, SDLC, Agile 🏢 Description: Job Description: Emerging technologies such as Distributed Ledger Technology (DLT), cloud, and API-driven ecosystems are reshaping financial market infrastructures. Euroclear seeks to seize these opportunities to develop innovative products, services, and capabilities that address market inefficiencies and strengthen its position as a leading financial market infrastructure provider. The Innovation Tribe within IT is the delivery arm of these game-changing digital capabilities across business lines and entities. To support our growth and ambitions, we are reinforcing the team with a Full Stack Engineer with experience or strong interest in DLT , working in a fast-paced and truly agile environment. As a Full Stack Engineer, you will contribute to building end-to-end digital asset solutions , combining Angular frontend development, C# backend services , and Azure cloud capabilities , while integrating with blockchain and distributed systems. Key Responsibilities: Design, develop, and maintain end-to-end applications Collaborate with Product Owners, Architects, and engineers to design and deliver innovative features aligned with business needs Build and maintain backend services in C# (.NET) , exposing robust and secure APIs Develop and enhance Angular-based user interfaces , ensuring performance, scalability, and usability Integrate applications with DLT / blockchain platforms , enabling interaction with digital asset services Design and consume REST APIs and event-driven services , supporting internal and external integrations Ensure code quality and maintainability through code reviews, testing, and engineering best practices Write and execute unit and integration tests to ensure reliability and platform stability Ensure solutions are secure and compliant , following internal security standards and guidelines Collaborate with DevOps and GTS teams to support CI/CD pipelines and Azure cloud deployments Participate in technical design discussions , ensuring alignment with platform architecture and standards Continuously explore and adopt emerging technologies , especially in DLT, cloud, and API ecosystems Job Requirements: Bachelor’s or Master’s degree in Computer Science, IT, or a related field Strong experience as a Full Stack Developer / Engineer Frontend expertise: Angular (preferred) TypeScript, HTML, CSS Backend expertise: C# / .NET ecosystem API development (REST, Microservices) Experience working with Azure cloud services and DevOps tooling Good understanding of software development lifecycle (SDLC) and Agile methodologies Experience designing and consuming APIs and integration services Knowledge or experience in DLT, blockchain, or digital asset platforms Familiarity with CI/CD pipelines, Git, and automated testing frameworks Strong problem-solving and analytical skills Nice to Have Experience with smart contracts (Solidity) or blockchain frameworks Exposure to event-driven architectures (Kafka, messaging systems) Experience with Docker / Kubernetes Knowledge of financial services or market infrastructure You Are: A passionate Full Stack engineer who enjoys building modern, scalable applications Curious and motivated to work with DLT, blockchain, and digital assets A strong team player , collaborating across engineering, product, and platform teams Proactive and solution-oriented, with a “make things happen” mindset Eager to learn new technologies and adapt quickly in a fast-paced environment Comfortable working in a complex and evolving technical landscape About Us Why join us Embark on your new adventure at Euroclear, and work at the heart of the global capital markets. We connect over 2,000 financial institutions across the globe. As an open and resilient infrastructure, we contribute to the stability of the financial markets. We help clients cut through complexity, lower costs, and mitigate risks of financial transactions. At Euroclear, we have the clear ambition to use our key role to facilitate and accelerate a sustainable global financial system. What We Offer: Work closely with inspiring, supportive and engaged colleagues from more than 80 different countries. Practice your talents in a highly professional international environment. Join a learning and development environment with an emphasis on knowledge sharing and training. Competitive salary and comprehensive benefits. Ways of working Find your own optimal balance within our hybrid working model, where you can connect at the office 8 days a month and also benefit from remote working. Great Place to Work for All We are committed to creating an inclusive culture that celebrates diversity and strives to be a Great Place to Work for All. All qualified applicants will be considered for employment, regardless of any aspect that makes them unique (including race, religion, national origin, gender, sexual orientation, age, marital status, pregnancy, disability, ...). If you need any specific accommodation due to disability or any other reason, you can let the recruiter know during your application process. Our values guide how we work together and shape our future: Our mission and values - Euroclear

🏢 Summary: Full Stack Engineer role building end-to-end digital asset solutions using Angular, C#/.NET, Azure, APIs, and blockchain integrations. The position works in an agile environment to deliver secure, scalable applications and cloud deployments for financial-market infrastructure. 🗂️ Requirements: Bachelor’s or Master’s degree in Computer Science, IT, or related field, Full Stack development experience, Angular, TypeScript, HTML and CSS expertise, C#/.NET backend development experience, REST API and microservices development experience, Azure cloud services and DevOps tooling experience, API and integration-services design and consumption experience, SDLC and Agile methodology knowledge, DLT, blockchain or digital-asset platform knowledge or experience, CI/CD, Git and automated-testing framework familiarity 📃 Skills: Angular, TypeScript, HTML, CSS, C#, .NET, REST, Microservices, Azure, DevOps, DLT, Blockchain, Git, CI/CD, Solidity, Kafka, Docker, Kubernetes 🏢 Description: Job Description: Emerging technologies such as Distributed Ledger Technology (DLT), cloud, and API-driven ecosystems are reshaping financial market infrastructures. Euroclear seeks to seize these opportunities to develop innovative products, services, and capabilities that address market inefficiencies and strengthen its position as a leading financial market infrastructure provider. The Innovation Tribe within IT is the delivery arm of these game-changing digital capabilities across business lines and entities. To support our growth and ambitions, we are reinforcing the team with a Full Stack Engineer with experience or strong interest in DLT , working in a fast-paced and truly agile environment. As a Full Stack Engineer, you will contribute to building end-to-end digital asset solutions , combining Angular frontend development, C# backend services , and Azure cloud capabilities , while integrating with blockchain and distributed systems. Key Responsibilities: Design, develop, and maintain end-to-end applications Collaborate with Product Owners, Architects, and engineers to design and deliver innovative features aligned with business needs Build and maintain backend services in C# (.NET) , exposing robust and secure APIs Develop and enhance Angular-based user interfaces , ensuring performance, scalability, and usability Integrate applications with DLT / blockchain platforms , enabling interaction with digital asset services Design and consume REST APIs and event-driven services , supporting internal and external integrations Ensure code quality and maintainability through code reviews, testing, and engineering best practices Write and execute unit and integration tests to ensure reliability and platform stability Ensure solutions are secure and compliant , following internal security standards and guidelines Collaborate with DevOps and GTS teams to support CI/CD pipelines and Azure cloud deployments Participate in technical design discussions , ensuring alignment with platform architecture and standards Continuously explore and adopt emerging technologies , especially in DLT, cloud, and API ecosystems Job Requirements: Bachelor’s or Master’s degree in Computer Science, IT, or a related field Strong experience as a Full Stack Developer / Engineer Frontend expertise: Angular (preferred) TypeScript, HTML, CSS Backend expertise: C# / .NET ecosystem API development (REST, Microservices) Experience working with Azure cloud services and DevOps tooling Good understanding of software development lifecycle (SDLC) and Agile methodologies Experience designing and consuming APIs and integration services Knowledge or experience in DLT, blockchain, or digital asset platforms Familiarity with CI/CD pipelines, Git, and automated testing frameworks Strong problem-solving and analytical skills Nice to Have Experience with smart contracts (Solidity) or blockchain frameworks Exposure to event-driven architectures (Kafka, messaging systems) Experience with Docker / Kubernetes Knowledge of financial services or market infrastructure You Are: A passionate Full Stack engineer who enjoys building modern, scalable applications Curious and motivated to work with DLT, blockchain, and digital assets A strong team player , collaborating across engineering, product, and platform teams Proactive and solution-oriented, with a “make things happen” mindset Eager to learn new technologies and adapt quickly in a fast-paced environment Comfortable working in a complex and evolving technical landscape About Us Why join us Embark on your new adventure at Euroclear, and work at the heart of the global capital markets. We connect over 2,000 financial institutions across the globe. As an open and resilient infrastructure, we contribute to the stability of the financial markets. We help clients cut through complexity, lower costs, and mitigate risks of financial transactions. At Euroclear, we have the clear ambition to use our key role to facilitate and accelerate a sustainable global financial system. What We Offer: Work closely with inspiring, supportive and engaged colleagues from more than 80 different countries. Practice your talents in a highly professional international environment. Join a learning and development environment with an emphasis on knowledge sharing and training. Competitive salary and comprehensive benefits. Ways of working Find your own optimal balance within our hybrid working model, where you can connect at the office 8 days a month and also benefit from remote working. Great Place to Work for All We are committed to creating an inclusive culture that celebrates diversity and strives to be a Great Place to Work for All. All qualified applicants will be considered for employment, regardless of any aspect that makes them unique (including race, religion, national origin, gender, sexual orientation, age, marital status, pregnancy, disability, ...). If you need any specific accommodation due to disability or any other reason, you can let the recruiter know during your application process. Our values guide how we work together and shape our future: Our mission and values - Euroclear

🏢 Summary: Full-time Senior Backend Developer role building a modern, large-scale enterprise platform for a global manufacturing customer. The position focuses on Node.js/TypeScript backend services, REST APIs, enterprise integrations, database design, and secure, scalable application delivery, with planned work through December 2026 and a possible extension to February 2027. 🗂️ Requirements: 7+ years of software development experience, 5+ years of Node.js backend development experience, TypeScript and JavaScript proficiency, RESTful API design and development knowledge, Enterprise-scale web application development experience, Software architecture and design patterns knowledge, Relational database experience, Secure coding and application security knowledge, Agile development experience, Advanced English, Availability for business trips to Basel, Switzerland 📃 Skills: Node.js, TypeScript, JavaScript, REST, PostgreSQL, SQL, Agile 🏢 Description: Svitla Systems Inc. is looking for a Senior Backend Developer (Node.js) for a full-time position (40 hours per week) in Europe . Our client is a leading multinational company in the building materials industry. You'll join the implementation of a large-scale enterprise web application for a global manufacturing customer. The project focuses on developing and implementing a modern enterprise platform that will replace an existing business application used across multiple countries. The backend solution will be built using modern technologies and integrated with various enterprise systems to support business-critical processes. The project's planned end date is December 18, 2026, with a possible extension to February 01, 2027. Requirements 7+ years of experience in software development. 5+ years of experience developing backend applications using Node.js. Strong knowledge of TypeScript and JavaScript. Understanding of designing and developing RESTful APIs. Experience with enterprise-scale web application development. In-depth understanding of software architecture principles and design patterns. Knowledge of relational databases (PostgreSQL, SQL Server, or similar). Understanding of secure coding practices and application security principles. Experience working in Agile software development environments. Strong analytical and problem-solving skills. Advanced English. Availability for business trips to Basel, Switzerland, during key project phases (Kick-off, end of Concept Phase, and Go-Live readiness review). Responsibilities Develop scalable backend services using Node.js and TypeScript. Implement RESTful APIs and backend business logic for enterprise web applications. Collaborate with architects to define technical solutions and application architecture. Participate in technical design sessions and solution discussions. Integrate backend services with internal and third-party enterprise systems. Design and optimize database structures, queries, and data models. Ensure application performance, scalability, reliability, and security. Write clean, maintainable, and well-tested code following engineering best practices. Participate in code reviews. Collaborate closely with Front End Developers, QA Engineers, Business Analysts, and DevOps Engineers. Participate in Agile ceremonies including sprint planning, daily stand-ups, reviews, and retrospectives. We offer US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in workspace, either remote or our welcoming office. Bonuses for article writing, public talks, and other activities. Generous time off, including vacation, national holidays, sick leaves, and family days. Personalized learning programs tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Regular corporate online activities. Awesome team and a friendly, supportive community!

🏢 Summary: Senior Full-Stack Engineer role focused on building scalable ASP.NET/C# microservices and React/TypeScript interfaces, with a 60/40 frontend-to-backend split. The position offers technical ownership, mentoring opportunities, and a potential path to Tech Lead while working hybrid from Poland under an employment contract. 🗂️ Requirements: Poland residency, MSc in Computer Science or equivalent, 5+ years building secure REST APIs with ASP.NET, 5+ years developing frontend applications with React, Microservices architecture expertise, Cloud design-pattern knowledge, Technical ownership, Technical leadership, English B2 fluency 📃 Skills: ASP.NET, C#, React, TypeScript, REST, Microservices, Cloud, AWS, Agile, DDD 🏢 Description: We’re looking for a Senior Full-Stack Engineer who brings deep technical expertise and a collaborative mindset to our product development team. You will work with a modern microservices architecture, building scalable backend services using the ASP.NET Web API with C#, and intuitive frontend interfaces using mainly React and TypeScript. This is a hands-on engineering role with a 60/40 front-/backend focus, ideal for someone who likes to take ownership, thrives in a dynamic product team, and enjoys mentoring others. This role could easily become a Tech Lead role in a foreseeable future. If you're passionate about designing high-impact software in a cloud-native environment, we’d love to hear from you. This Poland-based role offers remote flexibility, but we value in-person collaboration. Our team meets in Poland for at least one week each quarter, so we request all applicants to be located in Poland. This is not a globally remote role. Poland residency is required. The contract form is Umowa o Pracę (only, no B2B). What you will be responsible for Collaborate proactively in refinement sessions with product and tech teams to ensure clarity and feasibility of features. Design, implement, and maintain scalable web APIs using ASP.NET and microservices architecture principles. Develop responsive user interfaces with React and TypeScript that enhance usability and performance. Work closely with Product Owners to clarify feature requirements and ensure business context is well-understood. Define, design and align feature architecture with the Head of Engineering to ensure consistency and scalability. Ensure features meet Definition of Done, with state-of-the-art unit, integration, and end-to-end test coverage. Support incident response and production issue resolution as per team standards. Actively contribute to team knowledge sharing and coach colleagues in technical best practices. What makes you a match Essential Qualifications: MSc+ in Computer Science or equivalent 5 years of proven experience in building secure REST APIs using ASP.NET , as well as developing solid front-end applications with React are non-negotiable must haves. Comprehensive knowledge of contemporary web application architectures, with a focus on microservices and cloud design patterns. Demonstrated ability of high technical Ownership and Tech Leadership are a requirement for this role. Bonus Skills: Hands-on experience with AWS infrastructure. Experience working in cross-functional product teams using Agile practices and following Domain-Driven Design (DDD). Collaboration and Interpersonal Skills: Clear and adaptive communication with both technical and non-technical stakeholders. Strong sense of ownership, accountability, and proactive problem-solving. Languages: English: B2 - (No certificate required, but Fluency) Polish and German: desired, not required What you can expect A dynamic, ambitious team where your voice is heard, and your contributions truly matter. You’ll have real ownership over your decisions in a trusted, cross-functional environment within a Swiss product company that puts people first. We offer fair compensation, flexible working hours, a hybrid work setup, and a culture that supports both personal and professional growth, fostering a healthy work-life balance. Employer of Record: For this role, we offer employment through our trusted Employer of Record provider Remote.com , ensuring full legal compliance and a seamless experience for our team members in Poland. ID Verification: To maintain a fair and secure hiring process, candidates may be asked to verify their identity their identity before speaking with our Recruiter. This step helps us prevent fraud and focus our resources on genuine applicants. About us Who we are esurance is a Swiss InsurTech offering a SaaS platform that connects SMEs, insurance providers, brokers, and business application providers. Founded in 2013, we're on a mission to make health insurance for small businesses truly hassle-free. What makes us unique You'll be part of a connected, forward-thinking team built on trust, openness, and mutual respect — working hybrid from Zürich or remotely across Europe. We invest in your growth through agile practices, real ownership, and a transparent Grading System that ensures fair pay and clear career paths. Our core values We are connected. We are ahead. We are clear. We are approachable. Do these resonate with you? → Come join us. Our Recruitment Process & Principles We keep our process transparent and respect your time: Application Review — You hear from us within 5 business days. Always. Recruiter Screen — A relaxed Get2Know call to explore mutual fit. Four Interviews — Two Role Knowledge interviews (peer + supervisor), one Culture Match, one Leadership conversation. Batched into two days wherever possible. Hiring Decision — Thoughtful, timely. You'll know within 1–2 weeks. Use of Artificial Intelligence (AI) We use AI to increase productivity and you're welcome to use it to polish your CV or Coverletter. Interviews and assessments should reflect your genuine self, though. Recruiting Agencies: We don't work with unsolicited agency submissions. Thanks for respecting this.

🏢 Summary: Full-time Senior Java Engineer role supporting a large-scale digital marketing platform’s core backend, messaging, queues, and REST APIs. The position follows EST hours and includes a 24/7 on-call rotation every three weeks, including weekends. 🗂️ Requirements: 6+ years of commercial Java engineering experience, 6+ years developing large-scale applications, Experience with distributed systems, Experience with multithreading, Expert SQL knowledge, Strong Kubernetes experience, Knowledge of Cassandra, Knowledge of AWS SQS, S3, CloudFormation, and Lambda, Knowledge of Jenkins, Experience with OTEL and Grafana, Familiarity with AI agents, Upper-intermediate English or higher, Availability for EST working hours, Participation in 24/7 on-call rotation, including weekends 📃 Skills: Java, SQL, Kubernetes, Cassandra, AWS, SQS, S3, CloudFormation, Lambda, Jenkins, OTEL, Grafana, AI 🏢 Description: The Opportunity Svitla Systems Inc. is looking for a Senior Java Engineer for a full-time position (40 hours per week) in Europe. Our client is a digital marketing company that offers email marketing, social media marketing, event marketing, and online survey tools to help organizations expand their businesses by fostering stronger customer relationships. General info on the Big Delivery Team: handles all back-end systems, message processing, queuing, REST API apps, and messaging apps. Sometimes the whole team can handle incidents in the prod environment, and developer engagement will be needed. On-call rotation: once every 3 weeks; availability outside US business hours; 24/7 on-call, so weekends are also covered. Working hours: EST working hours (from 9 am EST). Requirements: 6+ years of commercial experience in developing large-scale applications. Proven experience in distributed systems and multi-threading. 6+years of commercial experience as a Java Engineer with successful project implementations. Expert knowledge of SQL. Strong experience with Kubernetes. Knowledge of Cassandra. Strong understanding of the following AWS services: SQS, S3, CloudFormation, Lambda. Knowledge of  Jenkins. Experience with observability tools such as OTEL and Grafana. Familiarity with AI; understanding of how to run and work with agents. Upper-intermediate English or higher. Nice to have: Some experience with DevOps and/or SRE, since they're expected to do a bit of everything here. Domain knowledge of email, SMS, push, etc. Experience with Quarkus and Ruby. Knowledge of RabbitMQ and ZooKeeper. Knowledge of AWS EKS and CloudWatch. Experience with CI/CD: Argo. Experience with HyperDX. Familiarity with JUnit, RSpec. Familiarity with JavaScript. Familiarity with DynamoDB. Responsibilities: Perform the development of the core back-end platform that supports multiple apps in the customer’s ecosystem. Participate in on-call rotations to ensure stable infrastructure support. Provide development of RESTful APIs. Be actively involved in team meetings and product discussions.

🏢 Summary: Oferta dotyczy roli Senior Full-Stack Engineer w projekcie Network Cloud, obejmującej rozwój oprogramowania do konfiguracji, monitorowania i optymalizacji serwerów oraz sieci. Praca polega na samodzielnym dostarczaniu funkcjonalności end-to-end w Java i React, przy rozwoju systemów cloud-native oraz automatyzacji sieci. Współpraca odbywa się hybrydowo, z okresowymi spotkaniami w Krakowie lub Warszawie. 🗂️ Requirements: Java 21, Spring / Spring Boot, Hibernate, JavaScript, TypeScript, React, Redux Toolkit, Relacyjne bazy danych, MariaDB, Linux, Git, Tworzenie testowalnego i utrzymywalnego kodu full-stack, Techniczny język angielski, Platformy cloud-native, Kubernetes, Narzędzia AI i LLM 📃 Skills: Java, Spring, SpringBoot, Hibernate, JavaScript, TypeScript, React, Redux, MariaDB, Linux, Git, Kubernetes, CloudNative, LLM 🏢 Description: Wspólnie z naszym Partnerem Biznesowym, liderem branży nowych technologii i automatyzacji sieci, poszukujemy doświadczonego specjalisty do realizacji projektów jako Senior Full-Stack Engineer w projekcie Network Cloud. Projekt obejmuje tworzenie oprogramowania do konfiguracji, monitorowania i optymalizacji serwerów oraz sieci dla klientów na całym świecie – od automatyzacji sieci mobilnych po rozwój aplikacji cloud-native. 💡 ZAKRES USŁUG - Samodzielna realizacja funkcjonalności end-to-end – od modelu danych i API na backendzie po interfejs użytkownika na froncie. - Projektowanie i rozwój usług backendowych w Java oraz rozbudowanych interfejsów w React. - Rozwój i utrzymanie wspólnej biblioteki komponentów UI oraz architektury backendowej. - Udział w przeglądach kodu obejmujących cały stos technologiczny – backend, frontend oraz warstwę integracyjną między nimi. - Merytoryczna współpraca z globalnymi centrami R&D Partnera. 🔍 WYMAGANE KOMPETENCJE - Zaawansowana znajomość Java 21 wraz z Spring / Spring Boot i Hibernate. - Praktyczne doświadczenie w JavaScript, TypeScript, React oraz Redux Toolkit. - Dobra znajomość relacyjnych baz danych, w szczególności MariaDB. - Znajomość systemu Linux na poziomie użytkownika lub wyższym oraz biegła obsługa Git. - Umiejętność samodzielnego tworzenia dobrze przetestowanego i łatwego w utrzymaniu kodu po obu stronach stosu technologicznego. - Zaawansowany, techniczny język angielski – do projektowania rozwiązań, code review i dokumentacji. - Udokumentowane doświadczenie z platformami cloud-native, np. Kubernetes. - Swoboda w korzystaniu z narzędzi AI (asystenci kodowania, LLM-y) oraz umiejętność oceny, kiedy warto im zaufać, a kiedy oprzeć się na własnej wiedzy. Mile widziane: - Doświadczenie w tworzeniu oprogramowania dla systemów telekomunikacyjnych. - Znajomość protokołów takich jak IPv4/6, DNS, BGP, DHCP, SR i ZTP. - Znajomość bibliotek do wizualizacji danych – Cytoscape.js, react-chartjs-2, MapLibre lub podobnych. - Doświadczenie z Storybook, narzędziami mono-repo (Lerna) lub Webpack. - Znajomość narzędzi automatyzacji, np. Ansible lub Terraform. - Znajomość zagadnień sieciowych Linux i Kubernetes (routing, iptables, CNI). TRYB WSPÓŁPRACY Model hybrydowy – gotowość do spotkań koordynacyjnych z biura w Krakowie lub w Warszawie (1x w tygodniu / 1x na 2 tygodnie). ✨ OFERUJEMY - Nowy sposób na aplikowanie z AI Rekruterem (AIR) – w trakcie procesu możesz porozmawiać z wirtualnym rekruterem 24/7, bez czekania na telefon. Finalną decyzję zawsze podejmuje Opiekun Projektu. - Współpracę w modelu projektowym, z rozliczeniem opartym na etapach i protokołach odbioru poszczególnych deliverables. - Wsparcie po stronie Connectis w sprawach administracyjnych i rozliczeniowych związanych ze współpracą. - Uczestnictwo w wydarzeniach branżowych oraz meetupach technologicznych. - 5 000 PLN za polecenie znajomych do naszych projektów. - Elastyczną formę współpracy B2B przy projektach realizowanych dla renomowanego Partnera z branży nowych technologii i automatyzacji sieci. - Szybki i zdalny proces. Dziękujemy za wszystkie zgłoszenia. Pragniemy poinformować, że skontaktujemy się z wybranymi osobami.

🏢 Summary: Senior Full Stack Developer role focused on building and operating a cloud-native product suite for asset lifecycle and investment decision-making. The position combines hands-on .NET/C#, Angular, AWS, integrations, DevOps, and production-quality ownership in a data-intensive environment. 🗂️ Requirements: Extensive .NET Core, C#, and Angular experience, Distributed systems and REST API integration experience, Microservices, Docker, Kubernetes, and Kafka or AMQ experience, SQL and/or NoSQL database experience, AWS cloud-native solution experience, CI/CD, test automation, and release management experience, Git, Azure DevOps, and/or GitHub Actions experience, Containerized application experience, Senior-level technical ownership and problem-solving, Stakeholder and technical communication skills 📃 Skills: .NET, C#, Angular, AWS, EKS, Docker, Kubernetes, Kafka, AMQ, REST, SQL, NoSQL, Git, DevOps, CI/CD, Azure, GitHub 🏢 Description: We are looking for an experienced Senior Full Stack Developer to support the development of a complex product suite used in a large-scale asset lifecycle and investment decision environment. The solutions help business and technical teams work with transparent, reliable, and traceable data, supporting better decisions around business cases, assumptions, calculations, forecasts, cost models, and operational planning. This is a senior hands-on engineering role combining backend, frontend, cloud, integrations, and production ownership. You will join a product environment where software quality, maintainability, cloud-native engineering, and strong technical ownership are key. About the role You will work on a suite of digital products used by different business functions, including engineering, finance, procurement, business development, project teams, and asset management stakeholders. The platform includes case management and orchestration capabilities, specialist tools for forecasting and cost estimation, data-driven components for assumptions and market information, and a reporting/data warehouse layer. The goal is to ensure that data, calculations, and business assumptions remain consistent, traceable, and reliable across products and processes. Key responsibilities Design, develop, and maintain scalable applications using .NET / C#, Angular, cloud services, and modern integration patterns. Build secure, maintainable, and reliable software aligned with product and architecture goals. Take ownership of solution quality, including security, compliance, authentication, authorization, and data protection. Improve production applications with a focus on reliability, performance, observability, incident resolution, and long-term maintainability. Work with cloud-native architecture and deployment patterns, primarily in AWS. Design and maintain integrations using REST APIs, microservices, and messaging platforms such as Kafka. Support DevOps practices: CI/CD, test automation, release management, and developer productivity improvements. Participate in technical discussions, architecture decisions, code reviews, and solution design. Mentor less experienced engineers and support high engineering standards across the team. Collaborate with architects, product owners, and stakeholders to translate business needs into robust technical solutions. Requirements Extensive hands-on experience with .NET Core, C#, and Angular. Strong understanding of object-oriented programming, clean code, SOLID, design patterns, and maintainable architecture. Experience building distributed systems and integrations using REST APIs, microservices, Docker, Kubernetes, and messaging platforms such as Kafka or AMQ. Experience working with SQL and/or NoSQL databases. Strong practical experience with cloud-native solutions on AWS, including areas such as: EKS / Kubernetes cloud storage secrets management, e.g. AWS Secrets Manager monitoring and observability production-grade deployments infrastructure automation Good understanding of DevOps practices and tools for automation, CI/CD, testing, and releases. Experience with Git, Azure DevOps, and/or GitHub Actions. Ability to work with containerized applications using Docker and Kubernetes. Senior-level ownership, strong problem-solving skills, and the ability to balance delivery speed with long-term quality. Strong communication skills and experience working with architects, product owners, and business stakeholders. Nice to have Experience with data-heavy applications, reporting platforms, forecasting tools, cost estimation, or business case systems. Experience with asset management, finance, investment-related systems, or complex operational platforms. Experience mentoring engineers and influencing technical direction in a product team.