Senior Software Engineer

🏢 Summary: Senior .NET Developer role focused on building secure, scalable, cloud-native enterprise solutions on Azure. The position involves developing serverless applications, backend APIs, data integrations, and CI/CD-enabled delivery in an Agile, hybrid team environment. 🗂️ Requirements: 7+ years of professional software development experience, Hands-on C# and .NET Core/.NET 6+ experience, Azure Functions development and deployment experience, Azure Storage Accounts and Blob Storage expertise, Azure Key Vault expertise, Event-driven and asynchronous processing knowledge, OOP, design patterns, and SOLID principles knowledge, CI/CD pipeline experience with Azure DevOps or GitHub Actions, Agile/Scrum team experience, English communication skills 📃 Skills: C#, .NET, Azure, Functions, Blob, KeyVault, ServiceBus, AppServices, SQL, CosmosDB, CI/CD, DevOps, GitHub, ARM, Bicep, Terraform, OOP, SOLID, Agile, Scrum 🏢 Description: Location: Wroclaw, hybrid 3 days/week About the Role We are looking for an experienced and passionate Senior .NET Developer with strong Azure expertise to join our engineering team. In this role, you will design, develop, and enhance scalable digital products and technology services used by clients and internal teams worldwide. You will work in a modern cloud-native environment, contribute to high-impact projects, and collaborate with cross-functional teams to build secure, reliable, and highly available enterprise solutions. Key Responsibilities Design, develop, and deploy serverless applications using Azure Functions Build and optimize integrations with Azure Blob Storage for large-scale data handling Implement secure access and secrets management using Azure Key Vault Develop scalable backend services and APIs using .NET 6+ / .NET Core Apply software engineering best practices: code reviews, automated testing, and CI/CD Ensure security, reliability, and performance across all delivered solutions Troubleshoot production issues and contribute to system improvements Collaborate closely with cross-functional teams in an Agile environment Advocate for clean code, maintainable architecture, and technical excellence Required Skills & Experience 7+ years of professional software development experience Strong hands-on experience with C# and .NET Core / .NET 6+ Proven experience building and deploying Azure Functions (Durable Functions is a plus) Deep experience with Azure Storage Accounts and Blob Storage (containers, lifecycle management, access tiers) Strong experience with Azure Key Vault (secrets, certificates, access policies) Experience with other Azure services : Azure Service Bus Azure App Services / Web Apps Azure SQL / Cosmos DB (nice to have) Solid understanding of event-driven and async processing patterns Strong knowledge of OOP, Design Patterns, and SOLID principles Experience with CI/CD pipelines (Azure DevOps or GitHub Actions) Working knowledge of Infrastructure as Code (ARM / Bicep / Terraform) – nice to have Experience working in Agile / Scrum teams Strong analytical and problem-solving skills Excellent communication skills in English (Polish is a plus)

🏢 Summary: Full-time Senior .NET Developer role focused equally on maintaining legacy .NET Framework 4.8 backend systems and delivering AI/ML-powered product features. The position involves integrating AI APIs, owning services throughout their lifecycle, and collaborating asynchronously with a global team during 15:00–18:00 CET overlap hours. Flexible hybrid work is available, with occasional visits to the Gdańsk office. 🗂️ Requirements: 5+ years of professional .NET/C# experience, Experience with .NET Framework 4.8 production systems, Software architecture knowledge, Microservices and REST API knowledge, Async programming experience, AI/ML model or API integration experience, Cloud platform experience, Written communication and asynchronous collaboration skills, Availability for 15:00–18:00 CET US meeting overlap, Independent end-to-end problem ownership 📃 Skills: .NET, C#, Azure, Microservices, REST, AI, ML 🏢 Description: Svitla Systems Inc. is looking for a Senior .NET Developer (AI/ML Integration) for a full-time position (40 hours per week) in Poland. Our client is an AI-driven SaaS company delivering a unified platform for retailers. We're looking for a Senior .NET Developer who combines strong backend engineering skills with hands-on experience building AI/ML-powered features. You'll split your time evenly between core .NET development — including maintaining and evolving our legacy systems — and integrating AI capabilities into our products. AI isn't a "nice to have" here; it's a core part of the job. This role works across a globally distributed team spanning India and both US coasts, so comfort with asynchronous collaboration and overlapping across time zones is important. The role offers a flexible hybrid format, with occasional visits to our Gdańsk office approximately 1–2 times per month. Requirements: 5+ years of professional experience with .NET / C#, including working with .NET Framework 4.8 in legacy production systems. Solid understanding of software architecture (microservices, REST APIs, async patterns, etc.). Experience integrating AI/ML models or APIs into applications. Comfortable working across legacy (.NET Framework). Experience with cloud platforms (Azure preferred, given the .NET stack). Strong written communication and async collaboration skills, given the distributed, multi-time-zone team, working evening hours to accommodate meetings with the US: 15-18CET. Comfortable working independently and owning problems end-to-end. Nice to have: Python, for ML/data workflows alongside .NET. Node.js / React, for full-stack or frontend collaboration. Docker / Kubernetes, for containerization and deployment. Strong grasp of SOLID principles and clean architecture practices. Experience with TDD (Test-Driven Development). Familiarity with prompt engineering. Experience modernizing legacy .NET Framework apps (e.g., migration paths to .NET Core). Understanding of CI/CD pipelines. Responsibilities: Design, build, and maintain backend services using .NET Framework 4.8 (legacy). Architect and implement AI/ML-powered features (LLM integrations, RAG pipelines, recommendation systems, or similar). Integrate with AI APIs and platforms (e.g., OpenAI, Anthropic, Azure AI, or similar). Support existing .NET Framework 4.8 legacy applications. Own technical decisions across the full lifecycle: design, development, testing, deployment, monitoring. Collaborate with product and data teams to translate designs into real user-facing features. Coordinate effectively with teammates across India, East Coast, and West Coast time zones. Mentor other engineers and contribute to technical direction. 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! Ref # 5299

🏢 Summary: Senior Azure Integration Developer role focused on designing and delivering secure, scalable enterprise integrations in a large financial-services environment. The position builds cloud-native APIs and microservices, influences integration architecture, and supports cloud transformation initiatives. 🗂️ Requirements: 7+ years of commercial Microsoft Azure development experience, Azure Functions expertise, API Management (APIM) expertise, Azure Service Bus expertise, Application Insights expertise, Strong Python programming skills, Commercial Java or .NET experience, REST API and cloud integration solution design experience, Microservices and distributed systems knowledge, Unit testing and production-quality software delivery experience, Enterprise application or CRM integration experience, Clear technical communication and cross-functional collaboration skills 📃 Skills: Azure, Functions, APIM, ServiceBus, ApplicationInsights, Python, Java, .NET, REST, Microservices, Testing, CRM 🏢 Description: We're looking for a Senior Azure Integration Developer to join a global engineering team delivering modern integration solutions within a large-scale financial services environment. In this role, you'll work on enterprise-grade integrations connecting business-critical platforms through Azure technologies. You'll collaborate closely with Solution Architects, influence technical decisions, and help shape scalable, secure integration patterns used across the organisation. What you'll be doing As a Senior Azure Integration Developer, you'll take ownership of designing and building secure, scalable integrations between enterprise applications and cloud platforms. Your responsibilities will include: Designing end-to-end API and integration solutions using modern Azure services. Developing cloud-native applications with Azure Functions, API Management (APIM) and Azure Service Bus. Building secure communication between enterprise platforms, backend systems and user-facing applications. Developing, optimizing and maintaining Python-based services while contributing across Java or .NET components where needed. Creating scalable microservice integration patterns for enterprise environments. Writing clean, maintainable code supported by comprehensive unit testing. Monitoring application performance, troubleshooting production issues and improving reliability using Azure Application Insights. Participating in architecture discussions, design reviews and technical planning. Supporting future cloud transformation initiatives, including potential integration with Google Cloud Platform (GCP). What we're looking for We're looking for someone who combines strong software engineering skills with a solid understanding of enterprise integrations. You'll ideally bring: 7+ years of commercial experience developing solutions on Microsoft Azure. Strong expertise with Azure Functions, API Management (APIM), Azure Service Bus and Application Insights . Excellent programming skills in Python , alongside commercial experience with Java or .NET . Experience designing and building REST APIs and cloud integration solutions. Strong understanding of microservices architecture and distributed systems. Extensive experience writing unit tests and delivering production-quality software. Experience integrating enterprise applications or CRM platforms. The ability to communicate technical ideas clearly and collaborate with architects and cross-functional teams. Nice to have Experience working with Google Cloud Platform (GCP) . Exposure to cloud migration or modernisation projects. Experience integrating enterprise SaaS platforms within large organisations. What makes this opportunity different? This isn't just another Azure development role. You'll have the opportunity to influence how enterprise platforms communicate across a global organisation, designing integration patterns that are secure, scalable and built for the future. You'll work with experienced architects, modern cloud technologies and complex engineering challenges where your technical decisions truly matter. If you're passionate about cloud integration, APIs and enterprise-scale Azure development, we'd love to hear from you.

🏢 Summary: Senior Azure Integration Developer role focused on designing and delivering secure, scalable enterprise integrations for a large financial-services environment. The position combines Azure-based API and microservice development with technical ownership, architecture collaboration, and production reliability work. 🗂️ Requirements: 7+ years of commercial Microsoft Azure development experience, Azure Functions expertise, API Management (APIM) expertise, Azure Service Bus expertise, Application Insights expertise, Python programming experience, Commercial Java or .NET experience, REST API and cloud integration design experience, Microservices and distributed-systems knowledge, Unit testing and production-quality software delivery experience, Enterprise application or CRM integration experience 📃 Skills: Azure, Functions, APIM, ServiceBus, ApplicationInsights, Python, Java, .NET, REST, Microservices, GCP 🏢 Description: We're looking for a Senior Azure Integration Developer to join a global engineering team delivering modern integration solutions within a large-scale financial services environment. In this role, you'll work on enterprise-grade integrations connecting business-critical platforms through Azure technologies. You'll collaborate closely with Solution Architects, influence technical decisions, and help shape scalable, secure integration patterns used across the organisation. What you'll be doing As a Senior Azure Integration Developer, you'll take ownership of designing and building secure, scalable integrations between enterprise applications and cloud platforms. Your responsibilities will include: Designing end-to-end API and integration solutions using modern Azure services. Developing cloud-native applications with Azure Functions, API Management (APIM) and Azure Service Bus. Building secure communication between enterprise platforms, backend systems and user-facing applications. Developing, optimizing and maintaining Python-based services while contributing across Java or .NET components where needed. Creating scalable microservice integration patterns for enterprise environments. Writing clean, maintainable code supported by comprehensive unit testing. Monitoring application performance, troubleshooting production issues and improving reliability using Azure Application Insights. Participating in architecture discussions, design reviews and technical planning. Supporting future cloud transformation initiatives, including potential integration with Google Cloud Platform (GCP). What we're looking for We're looking for someone who combines strong software engineering skills with a solid understanding of enterprise integrations. You'll ideally bring: 7+ years of commercial experience developing solutions on Microsoft Azure. Strong expertise with Azure Functions, API Management (APIM), Azure Service Bus and Application Insights . Excellent programming skills in Python , alongside commercial experience with Java or .NET . Experience designing and building REST APIs and cloud integration solutions. Strong understanding of microservices architecture and distributed systems. Extensive experience writing unit tests and delivering production-quality software. Experience integrating enterprise applications or CRM platforms. The ability to communicate technical ideas clearly and collaborate with architects and cross-functional teams. Nice to have Experience working with Google Cloud Platform (GCP) . Exposure to cloud migration or modernisation projects. Experience integrating enterprise SaaS platforms within large organisations. What makes this opportunity different? This isn't just another Azure development role. You'll have the opportunity to influence how enterprise platforms communicate across a global organisation, designing integration patterns that are secure, scalable and built for the future. You'll work with experienced architects, modern cloud technologies and complex engineering challenges where your technical decisions truly matter. If you're passionate about cloud integration, APIs and enterprise-scale Azure development, we'd love to hear from you.

🏢 Summary: Senior Full Stack Developer role delivering and optimizing internal cloud applications in a hybrid Warszawa-based model. The position leads Java and Angular development, solution design, performance improvements, technical delivery, and junior developer mentoring. 🗂️ Requirements: 7+ years of software or application development experience, Java and Spring Boot expertise, Angular, Angular Material, JavaScript, and TypeScript expertise, REST API and microservices architecture experience, Docker or similar container technology experience, Fluent English, Existing legal right to work in Europe, Leadership, mentorship, communication, and collaboration capabilities 📃 Skills: Java, SpringBoot, Angular, AngularMaterial, JavaScript, TypeScript, REST, Microservices, Docker, GitLab, Azure 🏢 Description: Ignite cloud innovation at scale — architect and elevate modern full stack solutions that empower teams to move faster and deliver better impact! Location & Work Model Warszawa-based opportunity with hybrid work model (2 remote days per week). As a Senior Full Stack Developer, you will be working for our client, a leading innovator in cloud-based enterprise solutions. You will be instrumental in delivering and continuously optimizing internal applications that support dynamic business needs. Your expertise will drive project success, foster technical excellence, and enable scalable growth. Your main responsibilities: Lead the development, implementation, and maintenance of full stack applications using Java, Angular, TypeScript, Docker, GitLab, and Azure Cloud Collaborate with internal customers and stakeholders to design, adapt, and optimize custom cloud solutions for internal projects Drive improvements in performance, reliability, and overall solution quality through proactive optimization Coordinate with the team to ensure smooth delivery, clear technical direction, and strong alignment with customer needs Support and mentor junior developers, strengthening team capability and engineering best practices Promote innovation through exploring and applying emerging technologies and modern engineering approaches You’re ideal for this role if you have: 7+ years of experience in software/application development Strong expertise in Java and modern backend development (including Spring Boot) Strong expertise in Angular, Angular Material, and JavaScript/TypeScript Experience building API service architectures (REST, microservices) Hands-on experience with Docker or similar container technologies A self-managed, quality-focused mindset with strong communication and collaboration skills, including leadership and mentorship capabilities It is a strong plus if you have: (optional) Experience with cloud technologies, especially Azure Cloud Experience with build automation and continuous integration tools Language Required for the role: Fluent English Eligibility for the role: Only candidates with an existing legal right to work in Europe will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior .NET Developer role focused on transforming a data-intensive analytical platform for the cloud. The position involves scalable architecture design, legacy modernization, SOA-based development, user support, and close collaboration with engineering, analysis, and QA teams. 🗂️ Requirements: 5+ years of .NET software development experience, Web services design and implementation expertise, AWS and cloud environment experience, Redux and Context API mastery in React applications, Software design principles and best practices, Advanced English 📃 Skills: .NET, AWS, React, Redux, Context, SOA, Webservices 🏢 Description: We are looking for a Senior .NET Developer to join our team and contribute to the cloud transformation of a data-intensive analytical platform. In this role, you will collaborate with innovative and diverse professionals from around the world, designing scalable architectures and modernizing legacy components to ensure performance and reliability. Your tasks Contributing to the cloud transformation of a data-intensive analytical platform by designing scalable architectures and modernizing legacy components Ensuring continuous technological evolution of the product by proposing and implementing modern frameworks and architectural improvements Applying Service Oriented Architecture (SOA) concepts in software design and development Providing timely and courteous support to platform users, ensuring issues are understood, analyzed, and resolved promptly Collaborating closely with a team of software engineers, analysts, and quality engineers to design and build software solutions that meet business needs Adhering to team design and coding procedures and standards Requirements Minimum 5 years of experience in software development with a strong focus on .NET technologies Deep expertise in designing and implementing web services Practical experience with AWS and cloud environments Hands-on mastery of Redux and Context API in React applications Strong understanding of software design principles and best practices Advanced level of English Nice-to-have requirements Experience with C#

🏢 Summary: Hands-on Senior .NET Developer / Technical Lead role focused on building backend APIs for a new customer mobile app and modernizing a large operational platform. The role offers ownership of architecture, integrations, engineering standards, and future backend team development, with compensation of $5,000–$6,000 plus milestone bonuses and relocation support to Warsaw. 🗂️ Requirements: Commercial .NET / C# experience, Production backend systems and API development experience, API design, authentication, authorization, and security knowledge, SQL and database design experience, Third-party and existing business-system integration experience, Legacy application modernization experience, Cloud infrastructure, CI/CD, testing, and production support knowledge, Technical ownership and sound decision-making ability, Strong communication and practical problem-solving skills 📃 Skills: .NET, C#, API, SQL, Authentication, Authorization, Security, CI/CD, Cloud, Testing, Monitoring, Azure, Umbraco, Microservices, IoT, CRM, ERP, CMS 🏢 Description: Senior .NET Developer / Technical Lead One of the largest logistics and storage companies in the region is looking for a Senior .NET Developer / Technical Lead to help build the next generation of its technology platform. This is a hands-on role with significant ownership. You’ll work closely with the leadership and product teams, make important technical decisions, and help modernize a large operational platform used across the business. Your first project: Your immediate priority will be building the backend APIs for a new customer mobile application . Customers will use the app to manage their accounts and rentals, make payments, and access their storage units. You’ll work closely with the mobile team to design the APIs, authentication, permissions, integrations, and backend workflows that make this possible. Beyond the mobile application, you’ll help move the business away from legacy systems and towards a modern, API-driven platform connecting customer applications, operations, payments, access control, reporting, notifications, and other core services. What you’ll do Design and build production APIs and backend services using .NET / C# Work closely with the mobile team on API contracts and backend workflows Take ownership of key backend and architecture decisions Integrate new services with existing systems and SQL databases Help modernize and gradually replace legacy applications Design secure and reliable integrations between business-critical systems Improve testing, monitoring, documentation, and CI/CD practices Help establish development standards as the platform grows Mentor and potentially help build the future backend team What we’re looking for Strong commercial experience with .NET / C# Proven experience building production backend systems and APIs Strong understanding of API design, authentication, authorization, and security Good SQL and database design experience Experience integrating third-party or existing business systems Experience working with or modernizing legacy applications Understanding of cloud infrastructure, CI/CD, testing, and production support Ability to take ownership and make sound technical decisions Strong communication skills and a practical approach to solving problems Nice to have Experience in any of the following would be useful, but is not required : Azure or another major cloud platform Payments Mobile application backends Access-control, IoT, or hardware-connected systems CRM, ERP, CMS, or operational platforms Umbraco Microservices or event-driven systems Leading or mentoring other developers Why join? This isn’t a maintenance role. You’ll have the opportunity to influence the architecture of a major new platform, replace legacy technology with modern systems, and see the software you build used directly by customers and operations. You’ll join at an important stage of the project with the opportunity to take real technical ownership and grow into a broader leadership role as the engineering team expands. Offer: $5,000 — $6,000 (depending on experience) Rewarding bonuses for milestones hit. Work in a new high-tech office in Warsaw Long-term growth opportunities and career progression Relocation support to Warsaw (If needed)

🏢 Summary: Integration Developer role focused on designing, building, and supporting scalable cloud-native integrations across a diverse application landscape. The position uses Java, Python, Oracle Cloud services, Docker, and Kubernetes to deliver reliable APIs and integration flows throughout their full lifecycle. 🗂️ Requirements: Bachelor’s degree in Computer Science, Information Technology, or related field, Integration Developer or similar experience, Kubernetes and microservices architecture experience, Java programming experience, Python programming experience, Spring Boot, REST, SOAP, and Camel experience, Docker and container orchestration expertise, CI/CD and version control knowledge, Network protocols, security principles, and cloud infrastructure knowledge, Problem-solving and attention to detail 📃 Skills: Java, Python, SpringBoot, REST, SOAP, Camel, Kubernetes, Docker, Microservices, CI/CD, Git, Jenkins, OracleCloud 🏢 Description: We are looking for Developer in Integrations Development team to be part of our team which is responsible (but not limited to) for developing and maintaining integrations between various applications company is using to run the business. Our role is to be part of whole lifecycle of the implementing of such integrations - from helping business process owners to realize idea, setting up requirements, development, production deployment, handover to support lines up to benefits realization of what our work has contributed. As a retail business company with long history, many support offices and thousands of stores around the globe it is not a surprise that application and technology portfolio is fairly wide - from top-new digital platforms to large ERP accounting systems, from presence in public clouds, using newest beta services to on-site server based CRM applications. Our talent is to fulfill any demand if it gives value disregard how different the applications we are integrating might be. We are looking for you if you are ready for such challenges which in the end are making work and life more interesting and engaging! Responsibilities Design and implement highly scalable, resilient, and performant cloud-native integration solutions. Create and manage containerized applications using Docker and Kubernetes, ensuring seamless deployment and orchestration. Write clean, maintainable, and efficient code to build integration services. Develop integration flows and APIs using a mix of custom code in Java and Python, and Oracle Cloud native services. Ensure that integrations are designed with scalability, reliability, and fault tolerance in mind. Collaborate with cross-functional teams to understand business requirements and translate them into technical specifications. Proactively identify and resolve any issues related to the performance and reliability of integrations. Advocate for and implement best practices in cloud architecture, Kubernetes management, integration design, and coding. Ensure all solutions adhere to enterprise security policies and compliance requirements. Document all processes, designs, and deployments meticulously for future reference and for the use of other team members. Work closely with other developers, architects, and product teams to deliver end-to-end solutions. Provide technical guidance and support to other team members. Participate in code reviews, team meetings, and knowledge-sharing sessions. Requirements Bachelor’s degree in computer science, Information Technology, or a related field. Proven experience as an Integration Developer or similar role, with a focus on Kubernetes and microservices architecture. Strong programming skills and experience in languages such as Java, Python, Spring Boot, REST, SOAP, Camel. In-depth knowledge of Kubernetes, Docker, and related container orchestration and management technologies. Familiarity with CI/CD tools and version control systems (e.g., Git, Jenkins). Solid understanding of network protocols, security principles, and cloud infrastructure. Excellent problem-solving abilities and a strong attention to detail. Nice to have Understanding of retail business processes. Experience with public clouds. Experience in test automation for unit and integration testing. What do we offer? Contract of employment Annual bonus Private medical care Cafeteria Platform/Multisport English lessons subsidized by the company Group insurance Attractive discounts for products and services at our stations Employee stock purchase plan Employee Assistance Program (Lyra) Two additional days off (Good Friday, Friday after Corpus Christi) – with the possibility of exchanging for other holidays Employee Referral Bonus Program Trainings & possibility to develop skills in a wide international environment When working with us you can depend upon it that you will not be judged on the grounds of race, national origin, gender, sexual orientation, disability, age, or other legally protected status. Oppositely – we believe that our diverse and inclusive culture helps us create an amazing atmosphere where everybody feels welcome. Interested? We encourage you to apply. We know great companies are built from within, by great people like you. Come grow with us! We´re looking forward to your application We hereby inform that in the company Circle K Business Centre Poland sp. z o.o. with registered office in Warsaw an Internal Notification and Follow-up Actions Procedures applies.

🏢 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.