Senior .NET Developer

🏢 Summary: Senior C++ Developer contract role for building and supporting high-performance, low-latency FX trading and risk-management systems in a hybrid Kraków setup. The role covers real-time, multi-threaded application development, production support, performance optimization, and collaboration with global agile teams. 🗂️ Requirements: 7+ years of professional C++ software development experience, Modern C++ expertise, Multi-threading and concurrency experience, Low-latency, real-time systems development experience, FX trading platforms and trade lifecycle process knowledge, Risk-management systems and financial-markets technology experience, Algorithms, data structures, object-oriented design, system architecture, and design patterns knowledge, Relational database experience, Messaging technology experience, CI/CD and DevOps experience, Microsoft Azure exposure, Enterprise production application support experience, Fluent English 📃 Skills: C++, Multithreading, Concurrency, Algorithms, Databases, MSSQL, Sybase, Oracle, IBMMQ, Kafka, GitLab, Azure, DevOps, CICD 🏢 Description: Location: Kraków, Poland (Hybrid – 3 days onsite per week) Experience: 8+ years Employment Type: B2B, Full-time Position Overview We are looking for an experienced Senior C++ Developer with strong FX domain expertise to join our technology team in Kraków. The end client is a leading global financial services organization specializing in wealth management, investment banking, and asset management, with a strong focus on innovation, technology, and delivering secure, high-performance solutions for global markets. The ideal candidate will have deep experience in building high-performance, low-latency, real-time systems and a strong understanding of foreign exchange (FX) trading platforms, lifecycle processes, and risk management systems . You will work on mission-critical applications, designing and developing scalable solutions that support complex financial workflows in a fast-paced trading environment. Key Responsibilities Design, develop, and maintain high-performance C++ applications for FX trading and risk management platforms. Build and optimize low-latency, multi-threaded, real-time systems . Work closely with business, product, and technology teams to deliver robust trading solutions. Apply strong knowledge of algorithms, data structures, and system design principles to solve complex technical challenges. Develop and enhance applications supporting FX trade lifecycle processes. Troubleshoot production issues and provide L3 application support . Participate in incident management, root cause analysis, and performance optimization. Implement best practices around software development, testing, deployment, and CI/CD processes. Collaborate with global teams in an agile development environment. Required Skills & Experience 7+ years of professional software development experience with strong C++ expertise. Extensive experience with: Modern C++ development Multi-threading and concurrency Low-latency application development Real-time systems Performance optimization and troubleshooting Strong domain experience in: FX trading platforms FX lifecycle processes Risk management systems Financial markets technology Excellent understanding of: Algorithms Data structures Object-oriented design System architecture and design patterns Hands-on experience with relational databases such as: MS SQL Server Sybase Oracle Experience with messaging technologies: IBM MQ Kafka Experience with CI/CD and DevOps practices, preferably: GitLab CI/CD Automated build and deployment pipelines Exposure to Microsoft Azure cloud technologies. Experience supporting production applications in enterprise environments. Strong analytical and problem-solving skills. Excellent verbal and written communication skills. Fluent English communication skills. Preferred Qualifications Previous experience working in investment banking, capital markets, or financial technology environments. Knowledge of trading protocols, market data systems, or electronic trading platforms. Experience improving application performance and reducing latency in mission-critical systems.

🏢 Summary: Senior .NET Developer role focused on building and maintaining scalable back-end services for an electronic-component selection system and manufacturer database integrations. The position involves Azure and CosmosDB development, test automation, AI-assisted engineering, and close Agile collaboration with a US-based team. 🗂️ Requirements: 8+ years of .NET development experience, Senior-level problem-solving capabilities, C# experience, Azure cloud experience, CosmosDB experience, Practical use of AI development tools, Fluent English, Availability for daily meetings between 17:00 and 19:00 CET, Residence in Poland or eligibility to work in Poland 📃 Skills: .NET, C#, Azure, CosmosDB, Playwright, Selenium, GitHub, Copilot, ChatGPT, Cursor, Agile 🏢 Description: We are part of an international organization listed on Nasdaq Stockholm, operating in 11 countries. In Poland, we work with full autonomy. We independently choose our technologies, processes, and ways of working while maintaining the highest professional standards. We deliver a wide range of IT projects in Poland and internationally, across multiple domains and technologies. This allows our consultants to develop their competencies and gain experience aligned with their professional ambitions. Our collaboration is built around the CARE philosophy. For us, it means responsible project matching, transparent cooperation, and a long-term approach to professional growth. Join us as Senior .NET Developer Grow in an environment that cares about your development as much as you do. Your responsibilities Designing, developing, and maintaining high-performance back-end services using .NET and C# for an established, scalable system used for selecting electronic components and integrating with manufacturer databases. Working extensively with Azure cloud services and CosmosDB to build, maintain, and monitor resilient solutions. Setting up test automation structures and frameworks from scratch using tools like Playwright or Selenium . Actively leveraging AI coding assistants such as GitHub Copilot , ChatGPT , or Cursor to enhance productivity and troubleshooting, while proactively sharing AI-assisted development practices with the team. Collaborating directly with the US-based team in an Agile environment, actively participating in code reviews, sprint planning, and architectural discussions. Communicating with business stakeholders to understand requirements and translate them into effective technical solutions. Requirements Minimum 8 years of professional experience in .NET development, demonstrating a senior-level mindset and problem-solving capabilities. Experience with C# , the Azure cloud ecosystem, and CosmosDB . Practical experience in using modern AI tools in daily software development and a willingness to promote these practices. Fluency in English to ensure seamless communication with US managers and developers. Flexibility to align with US working hours, specifically attending daily meetings between 17:00 and 19:00 CET. You need to live in Poland and/or be eligible to work here. Nice to have: Background or interest in Electrical Engineering. General understanding of testing practices, CI/CD pipelines, and Git version control. Knowledge in TypeScript or JavaScript. What we offer 100% remote work Work in a Scandinavian culture built on logic and dialogue. Health and sports benefits tailored to your needs. Speed Coaching – short sessions that provide new perspectives and solutions. Sports training, an internal team, and opportunities to take part in competitions. Team events and development-focused meetups.

🏢 Summary: Hybrid .NET Developer role supporting a digital banking modernization program, rebuilding legacy BPM applications into scalable modern .NET solutions. The position combines backend development, automated testing, enterprise integrations, Kubernetes deployment support, and AI-assisted development with Claude and Codex. 🗂️ Requirements: 3+ years of C# and .NET development experience, Experience with .NET Framework and legacy-code modernization, Practical experience with Claude and Codex, Strong automated-testing experience, Enterprise application design and implementation experience, Strong MS SQL knowledge, Experience with Git, JIRA and TeamCity, English proficiency for technical documentation 📃 Skills: C#, .NET, .NETFramework, Claude, Codex, MS SQL, Git, JIRA, TeamCity, LLM, Testing 🏢 Description: Unleash innovative web solutions — shape the future of digital banking experiences! Łódź-based opportunity with hybrid work model (2 days in the office/month). As a .NET Developer you will be working for our client, a leading financial institution focused on delivering innovative digital banking solutions. You will join a strategic modernization initiative involving the redevelopment of a BPM platform. The project focuses on rebuilding legacy applications from .NET Framework to modern .NET technologies. You will collaborate closely with AI-powered development tools and help deliver scalable, secure, and maintainable solutions in a complex enterprise environment. Your main responsibilities: Develop and maintain backend services using .NET and C# Rebuild legacy applications from .NET Framework to modern .NET architecture Create and maintain automated tests Collaborate with business stakeholders to analyze and refine requirements Design scalable and maintainable software solutions Integrate applications with databases and external services Utilize LLM-based tools such as Claude and Codex to support software development activities Participate in code reviews and ensure adherence to development standards Deploy and support applications running in Kubernetes environments Work closely with cross-functional teams in an Agile delivery model You're ideal for this role if you have: At least 3 years of experience in software development using C# and .NET Experience with .NET Framework and modernizing legacy code Practical experience working with LLM tools such as Claude and Codex Strong experience with automated testing Experience designing and implementing enterprise applications Strong knowledge of MS SQL Experience using Git, JIRA, and TeamCity Ability to work independently while collaborating effectively within a team English skills sufficient to write and understand technical documentation Nice to have: Knowledge of Docker and Kubernetes

🏢 Summary: Lead the development of a modern fintech expense-management platform that integrates payments, cards, invoicing, and financial tools into partner systems. The role focuses on building scalable Kotlin microservices, improving system reliability and architecture, and guiding engineers through technical challenges. 🗂️ Requirements: 5+ years of software development experience, Kotlin server-side expertise, Distributed systems experience, Microservices experience, Cloud environment experience, PostgreSQL proficiency, Testing framework experience, Observability tooling experience, English proficiency at B2 level or higher, Residence in Poland 📃 Skills: Kotlin, AWS, Kubernetes, PostgreSQL, JUnit, Testcontainers, Grafana 🏢 Description: Join a team working on a modern fintech platform that supports company expense management. The project focuses on developing a finance solution that enables seamless integration of financial tools (including payment cards, expense management, and invoice handling) directly into partner systems such as banks, accounting platforms, and HR solutions. The product being developed allows companies to simplify financial processes, automate settlements, and gain full real-time control over their spending. Your tasks Leading initiatives to design, build, and maintain scalable microservices primarily using Kotlin Collaborating with cross-functional teams to develop innovative solutions across Platform, Services, SMB, and other domains Analyzing system performance and implementing optimizations to ensure high reliability and scalability Participating in code reviews, post-mortems, and providing mentorship to other engineers Proactively improving the architecture and quality of solutions, and leading the team through technical challenges and migrations Requirements Minimum 5 years of professional experience in software development Expertise in server-side languages, especially Kotlin, and experience with distributed systems, microservices, and cloud environments (e.g., AWS, Kubernetes) Proficiency with relational databases like PostgreSQL, testing frameworks (e.g., JUnit, Testcontainers), and observability tools like Grafana Strong problem-solving skills and a collaborative mindset to mentor and upskill your teammates Very good knowledge of English - min. B2 level Residing in Poland required Nice-to-have requirements Previous work in the fintech industry or with financial products Knowledge of topics related to payments, cards, or accounting Experience working in a scale-up environment Proficiency in one of the following front-end technologies: React or TypeScript

🏢 Summary: Senior Fullstack Developer role for building a greenfield project-management module, with React front-end development and C#/.NET microservices. The position covers end-to-end delivery, including automated testing, CI/CD deployment, and monitoring in Azure Kubernetes environments. It offers 100% remote work for candidates based in or eligible to work in Poland. 🗂️ Requirements: React experience, C# and .NET development experience, Practical microservices architecture knowledge, Docker and Kubernetes deployment experience in Azure, Azure DevOps workflow experience, Automated unit and integration testing practice, Ability to independently own and deliver complex tasks, Fluent English, Residence in Poland or eligibility to work in Poland 📃 Skills: React, C#, .NET, Microservices, Docker, Kubernetes, Azure, AzureDevOps, CI/CD, GitHub, Copilot, Testing 🏢 Description: e are part of an international organization listed on Nasdaq Stockholm, operating in 11 countries. In Poland, we work with full autonomy. We independently choose our technologies, processes, and ways of working while maintaining the highest professional standards. We deliver a wide range of IT projects in Poland and internationally, across multiple domains and technologies. This allows our consultants to develop their competencies and gain experience aligned with their professional ambitions. Our collaboration is built around the CARE philosophy. For us, it means responsible project matching, transparent cooperation, and a long-term approach to professional growth. Join us as Senior Fullstack Developer. Grow in an environment that cares about your development as much as you do. Your responsibilities Design, develop, and maintain fullstack features with a focus on front-end web application development using React coupled with C# and .NET microservices. Build automated intelligent forms, dynamic UI workflows, and CMS -connected data pipelines for a greenfield project management module. Take ownership of the end-to-end development cycle, including writing automated unit and integration tests, deployment, and monitoring. Collaborate with the team utilizing AI-assisted coding tools like GitHub Copilot to maintain code quality and accelerate delivery. Interact directly with Azure DevOps CI/CD pipelines and push code into a cloud-hosted Kubernetes cluster in Azure . Requirements Experience in React , with the ability to take ownership of complex frontend tasks. Knowledge in Tailwind CSS or UI libraries like shadcn/ui is an advantage. Experience in C# and .NET development, including practical knowledge in microservices architecture. Experience with modern cloud deployment environments, specifically Docker and Kubernetes in Azure . Experience working with Azure DevOps workflows, including pull requests, code reviews, and basic CI/CD execution. Habit of writing automated tests for your own code. Independent, self-starter mindset with the ability to drive tasks independently and navigate established architectures. Fluent English language skills. You need to live in Poland and/or be eligible to work here. What we offer • 100% remote work • Work in a Scandinavian culture built on logic and dialogue. • Health and sports benefits tailored to your needs. • Speed Coaching – short sessions that provide new perspectives and solutions. • Sports training, an internal team, and opportunities to take part in competitions. • Team events and development-focused meetups.

🏢 Summary: Join a high-impact financial services transformation program modernizing and extending Product Control and Risk applications for a unified operating model. The role involves full-stack C#/.NET development, legacy modernization, and cloud migration in close collaboration with Business Analysts. 🗂️ Requirements: Commercial C#/.NET development experience, Full-stack development capability, Experience with modern and legacy applications, MongoDB or NoSQL database knowledge, Agile delivery experience, Direct collaboration with Business Analysts, End-to-end feature ownership, Strong problem-solving skills 📃 Skills: C#, .NET, MongoDB, SQL, WPF, NoSQL, Cloud, Agile 🏢 Description: About the project: Join an international technology team supporting a large-scale transformation program within the financial services sector. The project focuses on consolidating multiple business entities into a unified operating model. As part of this transformation, the team is extending existing platforms to support additional business entities while modernizing core applications and migrating towards cloud-based solutions. The UK has been selected as the target architecture, making this a strategic, high-impact program with long-term visibility. Your responsibilities: Design, develop and enhance business-critical applications supporting Product Control and Risk functions. Participate in the modernization of legacy systems Develop scalable backend services using C#/.NET . Work across the full software development lifecycle in a true full-stack environment. Collaborate closely with Business Analysts to translate business requirements into technical solutions. Contribute to cloud adoption and application modernization initiatives. Tech Stack: C# .NET MongoDB SQL WPF Cloud technologies (modernization and migration initiatives) What we're looking for: Strong commercial experience with C#/.NET development. Full-stack mindset with the ability to work across backend and frontend technologies. Experience working with both modern and legacy applications. Knowledge of MongoDB or other NoSQL databases. Comfortable working in Agile environments and collaborating directly with Business Analysts. Strong problem-solving skills and willingness to take ownership of features from design through deployment. Nice to have: Experience within banking or financial services. Knowledge of Product Control, Risk systems or trading environments. Exposure to cloud migration or application modernization projects. Experience working with financial trading platforms.

🏢 Summary: Senior Full-stack Developer role focused on building Node.js microservices and REST APIs, contributing to Angular front ends, and modernizing legacy platforms into scalable AWS cloud-native solutions. The position owns the full delivery lifecycle, provides technical leadership and mentoring, and requires hybrid work from Gdansk or Krakow three days per week. 🗂️ Requirements: Bachelor’s degree in Computer Science, Engineering, or related field, 5+ years of professional software development experience, Leadership experience building production-grade systems, Expertise in Node.js, microservices, REST API design, and full-stack development, Angular development experience, Legacy-system modernization and target-state architecture design experience, Hands-on AWS cloud services experience, Relational and NoSQL database experience, Monitoring, observability, and automated testing experience, Agile delivery experience, Hybrid work from Gdansk or Krakow 3 days per week 📃 Skills: Node.js, Angular, Java, JavaScript, AWS, EC2, S3, Lambda, Kinesis, Firehose, DynamoDB, EKS, CloudWatch, PostgreSQL, Splunk, Honeycomb, Playwright, DB2, REST, Microservices 🏢 Description: We're looking for a Senior Full-stack Developer (Node.js, Angular, Java, JavaScript) to join our team in Poland. The ideal candidate thrives on solving complex problems, modernizing legacy platforms, and delivering robust cloud-native solutions. In this role, you’ll be hands-on with the full technology stack—shaping architecture, leading development efforts, and partnering closely with cross-functional teams to drive strategic initiatives forward. If you are an engineer who enjoys both the technical and collaborative aspects of building software at scale, we’d love to meet you. Please note that hybrid work, 3 days from Gdansk or Krakow, is required. Responsibilities Design, develop, and deploy backend services, microservices, and RESTful APIs—primarily in Node.js—with front-end contributions in Angular Modernize legacy systems by evaluating current-state architectures and defining target-state solutions that maximize performance, scalability, and maintainability Deliver high-quality software in an agile environment, partnering closely with product managers, architects, and other engineering teams Own the end-to-end development lifecycle: requirements gathering, solution design, coding, testing (including API and Playwright automation), deployment, and operational support Implement and manage AWS cloud services (e.g., EC2, S3, Lambda, Kinesis, Firehose, DynamoDB, EKS, CloudWatch) to build resilient, observable, and secure solutions Promote best practices in coding standards, testing, monitoring (via Splunk, Honeycomb), and documentation Mentor and guide engineers, fostering a culture of technical excellence, ownership, and continuous improvement Engage directly with clients and stakeholders, translating broad, ambiguous business needs into concrete technical plans Requirements Bachelor's degree in Computer Science, Engineering, or related field; Master's degree strongly preferred 5+ years of professional software development experience, with demonstrated leadership in building production-grade systems Deep expertise in Node.js, microservices architecture, REST API design, and full-stack development (Angular contributing to ~20% of workload) Proven success modernizing legacy systems, assessing current architectures, and defining target-state designs Hands-on experience with AWS cloud services (EC2, S3, Lambda, Kinesis, Firehose, DynamoDB, EKS, CloudWatch, and related tools) Experience with relational and NoSQL databases (DynamoDB, PostgreSQL); familiarity with DB2 is a plus Proficiency using modern monitoring and observability platforms (Splunk, Honeycomb) and automated testing frameworks (API testing tools, Playwright) Strong command of agile methodologies and iterative delivery Nice to have Exposure to Java for DB2 integration and legacy system interfacing Experience leading cross-functional initiatives in large enterprise environments Familiarity with API management, security, and governance best practices Experience with Playwright We offer We gather like-minded people: Top tech minds driving innovation in AI, cloud and digital platform modernization Supportive team and agile, startup-like culture Hybrid by design mode and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Career development programs Thought leadership, mentoring, soft skills and well-being programs Certification (Anthropic, Gemini, GCP, Azure, AWS) English classes We cover it all: Stable pay Participation in the Employee Stock Purchase Plan with a 15% discount Benefits package (health insurance, multisport, shopping vouchers) Referral bonuses up to $2,000 Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and more Corporate, social and well-being events Please, note: Benefits listed above are available to employees only We are open for working with Contractors. Terms of B2B cooperation agreements are agreed individually We will reach out to selected candidates exclusively EPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. With over thirty years of expertise in custom software, product and platform engineering, we empower our clients to become AI-Native enterprises, driving measurable value from innovation and digital investments.

🏢 Summary: Senior Full-stack Developer role focused on designing and modernizing cloud-native applications with Node.js and Angular. The position owns the full delivery lifecycle, including architecture, AWS implementation, automated testing, and operational support, while collaborating with clients and mentoring engineers. Hybrid work from Gdansk or Krakow three days per week is required. 🗂️ Requirements: Bachelor’s degree in Computer Science, Engineering, or related field, 5+ years of professional software development experience, Leadership experience building production-grade systems, Deep Node.js expertise, Microservices architecture experience, REST API design experience, Full-stack development experience with Angular, Legacy-system modernization and target-state architecture design experience, Hands-on AWS services experience, Relational and NoSQL database experience, Monitoring, observability, and automated testing experience, Agile delivery proficiency, Hybrid work from Gdansk or Krakow 3 days per week 📃 Skills: Node.js, Angular, Java, JavaScript, AWS, EC2, S3, Lambda, Kinesis, Firehose, DynamoDB, EKS, CloudWatch, PostgreSQL, Splunk, Honeycomb, Playwright, DB2 🏢 Description: We're looking for a Senior Full-stack Developer (Node.js, Angular, Java, JavaScript) to join our team in Poland. The ideal candidate thrives on solving complex problems, modernizing legacy platforms, and delivering robust cloud-native solutions. In this role, you’ll be hands-on with the full technology stack—shaping architecture, leading development efforts, and partnering closely with cross-functional teams to drive strategic initiatives forward. If you are an engineer who enjoys both the technical and collaborative aspects of building software at scale, we’d love to meet you. Please note that hybrid work, 3 days from Gdansk or Krakow, is required. Responsibilities Design, develop, and deploy backend services, microservices, and RESTful APIs—primarily in Node.js—with front-end contributions in Angular Modernize legacy systems by evaluating current-state architectures and defining target-state solutions that maximize performance, scalability, and maintainability Deliver high-quality software in an agile environment, partnering closely with product managers, architects, and other engineering teams Own the end-to-end development lifecycle: requirements gathering, solution design, coding, testing (including API and Playwright automation), deployment, and operational support Implement and manage AWS cloud services (e.g., EC2, S3, Lambda, Kinesis, Firehose, DynamoDB, EKS, CloudWatch) to build resilient, observable, and secure solutions Promote best practices in coding standards, testing, monitoring (via Splunk, Honeycomb), and documentation Mentor and guide engineers, fostering a culture of technical excellence, ownership, and continuous improvement Engage directly with clients and stakeholders, translating broad, ambiguous business needs into concrete technical plans Requirements Bachelor's degree in Computer Science, Engineering, or related field; Master's degree strongly preferred 5+ years of professional software development experience, with demonstrated leadership in building production-grade systems Deep expertise in Node.js, microservices architecture, REST API design, and full-stack development (Angular contributing to ~20% of workload) Proven success modernizing legacy systems, assessing current architectures, and defining target-state designs Hands-on experience with AWS cloud services (EC2, S3, Lambda, Kinesis, Firehose, DynamoDB, EKS, CloudWatch, and related tools) Experience with relational and NoSQL databases (DynamoDB, PostgreSQL); familiarity with DB2 is a plus Proficiency using modern monitoring and observability platforms (Splunk, Honeycomb) and automated testing frameworks (API testing tools, Playwright) Strong command of agile methodologies and iterative delivery Nice to have Exposure to Java for DB2 integration and legacy system interfacing Experience leading cross-functional initiatives in large enterprise environments Familiarity with API management, security, and governance best practices Experience with Playwright We offer We gather like-minded people: Top tech minds driving innovation in AI, cloud and digital platform modernization Supportive team and agile, startup-like culture Hybrid by design mode and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Career development programs Thought leadership, mentoring, soft skills and well-being programs Certification (Anthropic, Gemini, GCP, Azure, AWS) English classes We cover it all: Stable pay Participation in the Employee Stock Purchase Plan with a 15% discount Benefits package (health insurance, multisport, shopping vouchers) Referral bonuses up to $2,000 Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and more Corporate, social and well-being events Please, note: Benefits listed above are available to employees only We are open for working with Contractors. Terms of B2B cooperation agreements are agreed individually We will reach out to selected candidates exclusively EPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. With over thirty years of expertise in custom software, product and platform engineering, we empower our clients to become AI-Native enterprises, driving measurable value from innovation and digital investments.

🏢 Summary: Senior Fullstack Developer role for a greenfield project management module, building React front ends with C#/.NET microservices. The position covers end-to-end delivery, automated testing, Azure DevOps CI/CD, and deployments to Kubernetes in Azure, with 100% remote work available. 🗂️ Requirements: React experience, C# and .NET development experience, Microservices architecture knowledge, Docker and Kubernetes experience in Azure, Azure DevOps workflow experience, CI/CD execution experience, Automated unit and integration testing practice, Ability to independently own complex development tasks, Fluent English, Residence in Poland or eligibility to work in Poland 📃 Skills: React, C#, .NET, Microservices, Docker, Kubernetes, Azure, AzureDevOps, CI/CD, GitHubCopilot, Testing 🏢 Description: We are the part of an international organization listed on Nasdaq Stockholm, operating in 11 countries. In Poland, we work with full autonomy. We independently choose our technologies, processes, and ways of working while maintaining the highest professional standards. We deliver a wide range of IT projects in Poland and internationally, across multiple domains and technologies. This allows our consultants to develop their competencies and gain experience aligned with their professional ambitions. Our collaboration is built around the CARE philosophy. For us, it means responsible project matching, transparent cooperation, and a long-term approach to professional growth. Join us as Senior Fullstack Developer. Grow in an environment that cares about your development as much as you do. Your responsibilities Design, develop, and maintain fullstack features with a focus on front-end web application development using React coupled with C# and .NET microservices. Build automated intelligent forms, dynamic UI workflows, and CMS -connected data pipelines for a greenfield project management module. Take ownership of the end-to-end development cycle, including writing automated unit and integration tests, deployment, and monitoring. Collaborate with the team utilizing AI-assisted coding tools like GitHub Copilot to maintain code quality and accelerate delivery. Interact directly with Azure DevOps CI/CD pipelines and push code into a cloud-hosted Kubernetes cluster in Azure . Requirements Experience in React , with the ability to take ownership of complex frontend tasks. Knowledge in Tailwind CSS or UI libraries like shadcn/ui is an advantage. Experience in C# and .NET development, including practical knowledge in microservices architecture. Experience with modern cloud deployment environments, specifically Docker and Kubernetes in Azure . Experience working with Azure DevOps workflows, including pull requests, code reviews, and basic CI/CD execution. Habit of writing automated tests for your own code. Independent, self-starter mindset with the ability to drive tasks independently and navigate established architectures. Fluent English language skills. You need to live in Poland and/or be eligible to work here. What we offer 100% remote work Work in a Scandinavian culture built on logic and dialogue. Health and sports benefits tailored to your needs. Speed Coaching – short sessions that provide new perspectives and solutions. Sports training, an internal team, and opportunities to take part in competitions. Team events and development-focused meetups.

🏢 Summary: Senior C# backend role building, testing, deploying, and supporting a consumer-facing microservices platform used across several European countries. The position combines backend architecture, AWS infrastructure automation, production support, Agile delivery, and mentoring. 🗂️ Requirements: 5+ years of production C# software development experience, Hands-on .NET Core and .NET Framework experience, AWS and Terraform or CloudFormation experience, MS SQL, PostgreSQL, or DynamoDB knowledge, REST API expertise, CI/CD process experience, Object-oriented design patterns, SOLID principles, Clean Code, and architectural problem-solving, Computer Science degree, AI tooling usage, Agile Scrum and/or Kanban experience, English proficiency 📃 Skills: C#, .NET, TypeScript, REST, AWS, Terraform, CloudFormation, SQL, PostgreSQL, DynamoDB, CI/CD, SOLID, Scrum, Kanban 🏢 Description: We are seeking candidates for our client, which operates in Europe. You will need to be proficient in C# backend development with a thorough understanding of the .NET technologies involved. Strong backend skills where you can demonstrate your ability to apply these technologies, as well as deploy and maintain them will be crucial to success. Technologies we work with: C#, .NET Core, .NET Framework, TypeScript, REST APIs, AWS, Terraform, CloudFormation Responsibilities: Designing, writing, testing functionalities for a backend system written in C# Design software architecture between backend, frontend and mobile apps Deploying and maintaining microservices in AWS using Terraform or CloudFormation Debugging and maintaining system on production used by consumers from several European countries Scoping and assessing the complexity of features Participating in sprint planning, daily sprints and meetings with product owners for grooming new features Collaborating with other team members and teams who depend on functionalities that you develop Recruiting and mentoring new team members Required qualifications: 5+ years of production software development experience in C# engineer role Solid hands-on experience in .NET Core and .NET Framework technologies Experience in working with AWS and Terraform / CloudFormation Strong knowledge of DBMS like MS SQL / PostgreSQL / DynamoDB Expertise of REST APIs Strong hands-on experience of CI&CD processes Proficiency in OO design patterns, SOLID principles, Clean Code and solving architectural problems Computer Science degree AI Tooling usage Able to work with Agile methodologies such as SCRUM and/or Kanban Good communication and collaboration skills Self-motivation, proactive attitude Proficiency in English Nice to have: Experience in developing Cloud and Infrastructure solutions with AWS and CI/CD processes supported by tools like Docker, Kubernetes, Jenkins, Terraform, CircleCI, GitlabCI, Datadog, etc. Exposure to frontend development in React Working experience with one of the object-oriented and/or functional languages such as TypeScript, Java, Elixir, C++, Golang, Erlang, Python, Kotlin.