Senior .Net Developer (Mobile)

🏢 Summary: Senior Mobile Developer role leading the design and delivery of a secure, mobile-first platform integrated with backend, access control, payments, and operational systems. The position combines hands-on mobile development with architectural influence over a .NET/C# backend and technical leadership responsibilities. Offers ownership of product direction, team building, and long-term platform strategy with relocation and visa support available. 🗂️ Requirements: Strong commercial experience developing and shipping mobile applications, Experience with mobile security and biometrics, Experience implementing push notifications and BLE, Experience with API-driven architectures, Basic understanding of .NET/C# backend, Experience integrating third-party systems and operational platforms, Knowledge of CRM, CMS, ERP, payment and reporting systems, Understanding of cloud infrastructure, Strong documentation and security mindset, English or Polish language proficiency 📃 Skills: Mobile, iOS, Android, Biometrics, BLE, APIs, .NET, C#, CRM, CMS, ERP, Payments, Cloud 🏢 Description: Senior Mobile Developer — B2B Contract | Warsaw | Start Immediately $5,500—$6,000/month · Full-time · In-office · Relocation bonus · Milestone bonuses The Opportunity We're building a mobile app that talks to real-world access control and operational systems—secure logins, biometrics, BLE-based access, payments, and reporting, all in one platform. We need a hands-on mobile developer to own the app and ship features fast, working side-by-side with our .NET backend team and directly with the CEO. This starts as a B2B contract with real potential to grow into a bigger, long-term role—architecture, team leadership, the works—if it's a fit on both sides. This is a senior-level role only. We need someone with a proven track record—live, shipped apps in production and a portfolio to show it. No juniors, no mid-level, no exceptions. What You'll Build Mobile app features (iOS/Android or cross-platform) — real, production, shipping code. Authentication, biometrics, push notifications, and BLE functionality. API integrations with our .NET/C# backend team. Direct input into how the app connects to our customer portal, payments, and reporting systems. Fast decisions, zero bureaucracy—you work directly with the CEO and core team. What You Bring Proven track record: Live apps you've shipped that are currently in production, with a portfolio or App Store/Google Play links to prove it. Strong senior-level commercial experience—this is not an entry-level role. Comfortable working with APIs and collaborating with a backend team (bonus if you know .NET/C#). Working knowledge of mobile security fundamentals: authentication, permissions, push notifications, and BLE. Independent, clear communicator who delivers. Based in Warsaw or willing to relocate, and available to start immediately. Nice to Have Basic knowledge of .NET CRM/CMS experience (e.g. Umbraco). Access control or IoT/BLE hardware integration experience. Interest in leading a mobile team as the product grows. What's In It for You $5,500 — $6,000 /month (B2B contract). Relocation bonus if you're moving to Warsaw. Milestone bonuses for major deliveries (first release, key integrations, platform go-live). Modern Warsaw office. Direct access to the CEO—your work shapes the product. Fast-moving, low-bureaucracy environment with genuine long-term growth opportunities. Please include links to live apps or a portfolio with your application. Applications without proof of shipped work will not be considered. Start immediately. Interview process takes days, not weeks.

🏢 Summary: Senior .NET Developer role focused on building and enhancing distributed microservices for digital banking systems in a European financial environment. The position involves designing scalable, high-quality solutions using C# and .NET, implementing asynchronous communication, and ensuring robust automated testing practices. Remote-first model with collaboration on complex financial platforms. 🗂️ Requirements: 5+ years of experience in C# and .NET development, Strong experience with microservices architecture, Knowledge of CQRS, REST, OOP, EventSourcing, Experience with RabbitMQ or Kafka, Experience with NoSQL and relational databases, Experience with automated testing (unit, integration, contract), Knowledge of DomainDrivenDesign principles, Understanding of BPMS workflows, Experience with Git, Good command of Polish, Legal right to work in the EU 📃 Skills: C#, .NET, Microservices, CQRS, REST, OOP, EventSourcing, RabbitMQ, Kafka, Git, NoSQL, SQL, Docker, Testcontainers, Pact, DomainDrivenDesign, BPMS 🏢 Description: Unleash innovation — revolutionize financial systems with expert .NET development! Wroclaw-based opportunity with remote work model (5 remote days per week). As a Senior .NET Developer , you will be working for our client, a leading financial organization committed to transforming the digital banking experience. You’ll contribute to building and enhancing distributed microservices that enable seamless financial operations across Europe, driving innovation and operational excellence. Your main responsibilities: Develop and maintain scalable, high-quality microservices using C# and .NET technologies following Domain-Driven Design principles. Design and implement asynchronous communication patterns with RabbitMQ or Kafka to ensure system robustness. Collaborate with cross-functional teams to create automated tests, including unit, integration, and contract tests, utilizing Docker, Testcontainers, and Pact. Optimize code for performance, scalability, and reliability, adhering to Clean Code standards. Implement RESTful APIs and work with NoSQL and relational databases for effective data management. Contribute to the continuous improvement of development processes and best practices. Engage proactively in team collaboration, sharing knowledge and solving complex technical challenges. You're ideal for this role if you have: Minimum of 5 years of experience in C# and .NET development in a senior role. Understanding of workflows in BPMS platforms. Strong knowledge of microservices architecture, CQRS, REST, OOP, and Event Sourcing. Practical experience with asynchronous messaging (RabbitMQ/Kafka), Git, NoSQL databases, and relational databases. Familiarity with automated testing frameworks, including unit, integration, and contract testing. Good understanding of Domain-Driven Design (DDD) principles and clean code practices. Excellent team collaboration skills and a responsible, engaged work attitude. It is a strong plus if you have: Experience with Polish language communication skills. Knowledge of automated testing tools and frameworks. Language Required for the role: Polish: Good command Eligibility for the role: Only candidates with an existing legal right to work in the European Union 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 Android Mobile Developer role on a large-scale financial/payments platform focused on Token ID Android tools development. The position involves building and enhancing Android applications and backend components in a high-performance, secure, and scalable environment using modern technologies. Hybrid work from Warsaw with a long-term engagement on a globally distributed system. 🗂️ Requirements: Minimum 7+ years of experience in Android development, Strong experience with backend development using Spring Boot, Hands-on experience with Kubernetes and Docker, Experience with Jenkins for CI/CD, Proficiency in Java 21, Experience with SQL databases, Experience building and consuming REST and Web Services, Experience with IntelliJ, Experience with GenAI tools including Claude Code, Ability to develop and integrate Android applications with backend services 📃 Skills: Android, Java, SpringBoot, Kubernetes, Docker, Jenkins, IntelliJ, SQL, REST, WebServices, GenAI, Claude, CI/CD 🏢 Description: Senior Android Mobile Developer 📌 We’re looking for an experienced Senior Android Mobile Developer to join a fast-paced, high-impact project in the financial / payments domain. You’ll be working on a large-scale, globally distributed platform that processes millions of transactions and powers critical payment flows used worldwide. The project focuses on performance, security, and scalability, with strong engineering standards and modern technologies. 📍 Hybrid from Warsaw - 2-3 days per week Role Details: Duration: Minimum 6 months and will be extended Years of exp: Minimum 7+ Years Details about the project they would be working on: Token ID Android Tools development Job description: Mandatory skills : Android Development, Spring boot, k8s, Docker, Jenkins, IntelliJ, claude code, GenAI, Java 21, SQL, rest, Web Services Roles and Responsibilities: Develop and maintain new features for Android test tools and their backend components. Contribute to the design, development, and enhancement of various Android‑based tool applications used within the Token ID ecosystem. Deliver the following engagement components: Issuer Mobile Application TR Mobile Application Terminal Mobile Application Demo Wallet Ensure high‑quality code, performance optimization, and smooth integration with backend services. Collaborate with cross‑functional teams to support the full development lifecycle, including design, development, testing, and deployment. Troubleshoot issues, debug applications, and contribute to continuous improvements. ✅ Benefits: Work with modern technologies and international teams Long-term and stable cooperation Professional growth opportunities 📩 If you’re interested and meet the qualifications, please send your CV to Alina Pchelnikova at alina.pchelnikova@dcvtechnologies.co.uk

🏢 Summary: Senior Android Mobile Developer role focused on building and enhancing Android test tools and backend components within a Token ID ecosystem for secure payment solutions. The position involves developing high-impact mobile applications and ensuring scalable, high-performance integrations with backend services. Work is delivered in a hybrid model as part of a long-term B2B contract. 🗂️ Requirements: 7+ years of professional experience, Strong Android development experience, Proficiency in Java 21, Experience with Spring Boot, Experience with REST APIs and Web Services, Knowledge of SQL, Experience with Kubernetes, Experience with Docker, Experience with Jenkins, Proficiency with IntelliJ, Experience with Claude, Experience with GenAI 📃 Skills: Android, Java, Spring, REST, SQL, Kubernetes, Docker, Jenkins, IntelliJ, Claude, GenAI 🏢 Description: We are looking for an experienced Senior Android Mobile Developer to join a project for a world-leading payment technology company . You will work on advanced Android tools within a Token ID ecosystem, contributing to high-impact mobile applications used globally. 🔧 Project Overview The project focuses on Token ID Android Tools development , including multiple mobile applications supporting secure payment solutions. 📍 Location & Work Model Location: Warsaw or Gdansk Work Mode: Hybrid (1-2 days hybrid from the office) ⏳ Contract Details Contract Type: B2B (details to be shared) Daily Rate: 1.100 PLN/day – 1.300 PLN/day 👤 Experience Minimum 7+ years of professional experience 🛠 Mandatory Skills Please ensure your CV clearly reflects hands-on experience with the following: Android Development Java 21 Spring Boot REST APIs & Web Services SQL Kubernetes (k8s) Docker Jenkins IntelliJ Claude Code GenAI 📱 Responsibilities Develop and maintain new features for Android test tools and their backend components Design, develop, and enhance Android-based tool applications within the Token ID ecosystem Work on the following engagement components: Issuer Mobile Application TR Mobile Application Terminal Mobile Application Demo Wallet Ensure high-quality, scalable, and well-performing code Optimize performance and ensure seamless backend integration Collaborate with cross-functional teams across the full SDLC Debug, troubleshoot, and continuously improve applications 🚀 Join us and be part of a cutting-edge project for a global payment technology leader, where your work will directly impact secure, large-scale mobile solutions used worldwide.If you’re ready to take on a challenging Android role and work with modern technologies - we’d love to hear from you!

🏢 Summary: Senior .NET Developer role focused on building and enhancing a custom industrial application supporting end-to-end production and logistics processes. The position involves backend development in .NET, frontend development with Angular, and designing microservices-based solutions deployed in AWS. The project emphasizes scalability, traceability, and continuous product improvement. 🗂️ Requirements: Minimum 5 years of commercial experience as a .NET Developer, Strong hands-on experience with .NET in backend development, Practical experience with Angular in frontend development, Experience with microservices-based architecture, Experience with AWS cloud services 📃 Skills: .NET, Angular, AWS, Microservices 🏢 Description: We are looking for a Senior .NET Developer to join a long‑term product development project in the industrial and manufacturing domain. The role focuses on building and maintaining a custom‑built application that supports end‑to‑end production and logistics processes for industrial clients. The project uses modern technologies and follows an innovation‑driven approach, with strong emphasis on process traceability, scalability, and continuous improvement. Your tasks Develop and maintain backend solutions using .NET for a custom industrial application Implement new product functionalities according to business and process requirements Build and extend frontend features using Angular Design and develop solutions based on a microservices architecture Develop, deploy, and maintain solutions in an AWS cloud environment Requirements Minimum 5 years of commercial experience as a .NET Developer Strong hands‑on experience with .NET in backend development Practical experience with Angular in frontend development Experience working with microservices‑based architectures Experience working with AWS cloud services Fluency in English Residing in Poland required

🏢 Summary: Senior .NET Developer role focused on building and maintaining secure, high-performance online banking solutions in a hybrid work model. The position involves developing new backend features, optimizing databases, and managing containerized applications in an Agile, distributed environment. The role also includes ensuring code quality, supporting production systems, and contributing to secure payment functionalities. 🗂️ Requirements: Minimum 4 years of experience in IT systems development, Strong hands-on experience with .NET, Strong knowledge of PostgreSQL, Strong knowledge of MS SQL, Experience with Docker, Experience with Kubernetes, Practical understanding of Agile methodology, Ability to develop new features and maintain existing systems, Ability to work independently in distributed teams 📃 Skills: .NET, C#, PostgreSQL, MS SQL, SQL, Docker, Kubernetes, Agile, Elixir, Sorbnet 🏢 Description: Innovate online banking and join the team as a Senior .NET Developer! Warsaw-based opportunity with hybrid work model (2 times in the office/month). As a Senior .NET Developer , you will be working for our client, one of the leaders in online banking, supporting the development and maintenance of secure, high-performance financial solutions. You’ll be contributing to a team responsible for building and enhancing banking functionalities, ensuring reliability and innovation. Working in a distributed Agile environment, you’ll play a key role in both implementing complex backend logic and actively collaborating with cross-functional teams. Your main responsibilities: Design and develop new features in .NET 8 Implement and optimize SQL-based data access Build and maintain containerized applications using Docker and Kubernetes Collaborate with distributed teams in an Agile environment Participate in the development of secure payment solutions Share knowledge and support less experienced team members Ensure code quality through code reviews and testing Maintain existing functionalities and resolve production issues Manage your own time and responsibilities while working remotely You're ideal for this role if you have: Strong experience in developing IT systems (min. 4 years of experience) Solid hands-on experience with .NET Strong knowledge of PostgreSQL and MS SQL Practical understanding of Agile software development Excellent communication and collaboration skills in distributed teams Ability to work independently and manage your time effectively Experience in developing new features and maintaining existing ones A passion for software development and continuous learning Experience with Docker and Kubernetes Nice to have: Knowledge of banking domain such as payments and transactions (e.g. Elixir, Sorbnet)

🏢 Summary: Senior .NET Developer role focused on building and maintaining secure, high-performance online banking solutions in a distributed Agile environment. The position involves developing backend features in .NET 8, optimizing SQL-based data access, and working with containerized applications. Hybrid work model with strong emphasis on reliability, security, and collaboration. 🗂️ Requirements: Minimum 4 years of experience in IT system development, Hands-on experience with .NET, especially .NET 8, Strong knowledge of PostgreSQL, Strong knowledge of MS SQL, Experience with Docker, Experience with Kubernetes, Practical experience in Agile software development, Experience in developing new features and maintaining existing systems, Good command of Polish, Legal right to work in the European Union 📃 Skills: .NET, C#, PostgreSQL, MSSQL, SQL, Docker, Kubernetes, Agile 🏢 Description: Ignite digital innovation — shape the future of online banking! Warszawa-based opportunity with hybrid work model (2 days in the office/month, up to 4 remote days/week). As a Senior .NET Developer , you will be working for our client, a leader in online banking, supporting the development and maintenance of secure, high-performance financial solutions. You’ll join a dynamic team dedicated to building cutting-edge banking functionalities, ensuring top-tier reliability and innovation. Operating within a distributed Agile environment, you’ll play a pivotal role in implementing complex backend logic while collaborating seamlessly across teams. This is your chance to contribute to transformative financial technology and accelerate your career growth. Your main responsibilities: Design and develop new features in .NET 8 to enhance banking solutions. Implement and optimize SQL-based data access for performance and security. Build and maintain containerized applications using Docker and Kubernetes. Collaborate with distributed teams within an Agile framework. Participate in the development of secure payment solutions. Share knowledge and mentor less experienced team members. Ensure code quality through reviews and testing. Maintain existing functionalities and address production issues. Manage your time effectively while working remotely. You're ideal for this role if you have: At least 4 years of experience in IT system development. Solid hands-on experience with .NET (especially .NET 8). Strong knowledge of PostgreSQL and MS SQL. Practical understanding of Agile software development. Excellent communication and collaboration skills in distributed teams. Ability to work independently and manage your responsibilities. Experience developing new features and maintaining existing ones. Passion for software development and continuous learning. Experience with Docker and Kubernetes. It is a strong plus if you have: (optional) Certifications in relevant technologies. Experience with financial or payment systems. Language Required for the role: Good command of Polish. Eligibility to work on this role: Only candidates with an existing legal right to work in the European Union 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 Full Stack Software Engineer role focused on modernizing and scaling client, transaction, and regulatory reporting platforms within Asset Management technology. The position involves building high-quality cloud-native solutions, automating processes, and collaborating in a global agile environment. Hybrid work from the Wroclaw office is required 3 days per week. 🗂️ Requirements: 5+ years of hands-on application development experience using .NET, Experience with SQL Server or PostgreSQL, Practical experience with Terraform, Experience with CI/CD pipelines, Experience with Microsoft Azure, Ability to translate business requirements into technical requirements, Excellent communication skills, Bachelor's or master's degree in software engineering or equivalent, Banking or financial industry experience 📃 Skills: .NET, SQL, SQLServer, PostgreSQL, Terraform, GitLab, Azure, Angular, React, CI/CD 🏢 Description: We are looking for a Senior .NET Full Stack Software Engineer to join our crew in Wroclaw, driving the modernization and scalability of client, transaction and regulatory reporting platforms within Asset Management technology. Our team is responsible for providing timely and accurate client reports, transaction reports and reports to global regulators. Please note that working from the client's office is required 3 days per week. Responsibilities Drive the modernization and scalability of client, transaction and regulatory reporting platforms within Asset Management technology Implement high quality solutions that address business needs and adhere to industry standards Advance automation of manual processes to the next level Collaborate closely within an agile team and a global agile organization Translate high level business requirements into technical requirements addressing reliability, scalability and performance needs Ensure timely and accurate delivery of client reports, transaction reports and reports to global regulators Requirements 5+ years of hands-on application development experience using .NET Skills in SQL Server or PostgreSQL databases Practical experience with Infrastructure as Code (Terraform) and CI/CD pipelines (preferably GitLab) Experience with Microsoft Azure and cloud native solutions Experience in translating high-level business requirements into IT requirements Excellent communication skills Bachelor's or master's degree or equivalent with a focus in software engineering Banking or financial experience strongly desired Nice to have Familiarity with Angular or React 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 a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

🏢 Summary: Senior Software Developer role focused on building and evolving a modern mobile healthcare application that supports people with hearing disabilities. The position involves end-to-end development of mobile and backend solutions within a cross-functional, international Agile team. You will drive technical decisions, contribute to architecture, and ensure high-quality, scalable software delivery. 🗂️ Requirements: 5+ years of software development experience, Strong proficiency in C# or .NET MAUI or native Android or iOS development, Experience in mobile application development, Understanding of software architecture and design patterns, Experience with Agile methodologies (Scrum or SAFe), Ability to design and develop backend solutions, Experience with code reviews and automated testing, Fluent English 📃 Skills: C#, .NET, MAUI, Android, iOS, Scrum, SAFe, Architecture, Testing, Backend 🏢 Description: Build technology that truly matters Join our agile product team in Warsaw and help people with hearing disabilities improve their everyday lives through innovative mobile solutions. As part of our R&D organization, you will work on a modern mobile healthcare application connecting cutting-edge hearing technology with intuitive user experiences. About the role As a Senior Software Developer, you will play a key role in shaping, building, and evolving our mobile solutions. Working in a cross‑functional, international team, you will contribute end‑to‑end — from requirement discussions to design, development, testing, and release. Working with us, You will receive full-time work agreement, with a permanent contract after 3 months; flexible working hours; great opportunities for usage of newest technology; a generous benefits package (private medical care, sports card, and more); a Scandinavian-style work culture that values equality, autonomy, and work-life balance — no titles, no silos – pure collaboration. What you will focus on Designing and developing high‑quality mobile and backend solutions Driving technical decisions and contributing to system architecture Delivering new features that improve user experience and product value Collaborating closely with product owners, designers, and other developers Ensuring code quality through testing, reviews, and best engineering practices Investigating and resolving complex technical challenges Mentoring other developers and supporting team growth What we are looking for Solid experience in software development (typically 5+ years) Strong skills in at least one of the following: C# / .NET MAUI Native mobile development (Android and/or iOS) Good understanding of software architecture and design patterns Experience with Agile ways of working (Scrum / SAFe) Focus on quality, maintainability, and clean code Strong communication skills and fluent English Curiosity and motivation to continuously improve What we offer Meaningful work in healthcare technology Modern tech stack and engineering practices Flexible working hours and hybrid setup Private medical care, sports card and other benefits Scandinavian work culture built on trust, equality, autonomy, and work–life balance — no hierarchy, no silos, just true collaboration Opportunities for growth – both technical and leadership

🏢 Summary: Remote Senior .NET Developer role (EST hours) focused on designing and enhancing backend services for a banking trading platform, with strong emphasis on .NET and Oracle PL/SQL development in an Agile environment. The position involves building scalable integrations and maintaining critical trading functionalities. It targets experienced backend engineers within financial services. 🗂️ Requirements: 6+ years backend development experience, Strong experience with .NET Framework, Strong experience with C#, Solid expertise in Oracle PL/SQL, Experience with REST APIs, Experience with distributed application architectures, Experience in enterprise or financial services environments, Ability to work in Agile teams, Poland based candidate, Availability to work EST hours 📃 Skills: .NET, C#, Oracle, PLSQL, REST, SQL, CI/CD, Git, Agile 🏢 Description: *We are looking for Poland based candidate. The job is remote with EST working hours. At Capco Poland, we’re not just another consultancy - we’re the spark behind digital transformation in the financial world. As a global leader in technology and management consulting, we thrive on helping clients tackle the toughest challenges across banking, payments, capital markets, wealth, and asset management. Build scalable backend solutions powering the next generation of digital trading experiences. The Role We are looking for a Senior .NET Developer to join a high-performing delivery team supporting the enhancement and expansion of a leading banking client’s trading application platform. You will play a key role in designing, developing, and maintaining backend services and integrations that support critical trading functionality and business operations. This role is ideal for someone with strong backend engineering expertise, solid database development experience, and a collaborative mindset who enjoys working in fast-paced Agile delivery environments. What You’ll Do Design, develop, and maintain backend services and APIs using .NET Framework technologies Develop and optimize Oracle PL/SQL packages, procedures, functions, and database objects Collaborate with cross-functional teams including QA, business analysts, and frontend developers to deliver new trading platform features Participate in code reviews, technical design discussions, and release activities to ensure high-quality software delivery Troubleshoot production issues, identify performance improvements, and support ongoing platform stability What We’re Looking For 6+ years of backend development experience within enterprise or financial services environments Strong hands-on experience with .NET Framework and C# application development Solid expertise in Oracle PL/SQL development and database optimization Experience working with REST APIs, integrations, and distributed application architectures Strong problem-solving, communication, and stakeholder collaboration skills within Agile teams Bonus Points For Experience working on trading platforms, banking systems, or capital markets applications Familiarity with performance tuning and query optimization in Oracle databases Exposure to CI/CD pipelines, source control tools, and automated deployment processes Understanding of secure coding standards and enterprise application best practices We offer a flexible collaboration model based on a B2B contract, with the opportunity to work on diverse projects. Recruitment Process: HR Interview with the recruiter Technical Interview Client Interview Feedback and offer