Design, develop, and maintain backend .NET applications and microservices. Optimize PostgreSQL schemas and queries, implement asynchronous communication with RabbitMQ, build and consume REST APIs, write unit/integration tests, participate in code reviews, and collaborate with frontend, QA, and DevOps teams.
CAPCO POLAND
Mid .NET Developer
Location: Poland, Warsaw
Work schedule: Sunday-Thursday; 7:30-15:30 CET
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.
Our secret?
A culture that’s fast, flexible, and fiercely entrepreneurial. We move quickly, think creatively, and always put our people first.
We’re passionate about growth - both for our clients and ourselves - and that means attracting the very best talent to join us on this exciting journey.
We’re proud to be:
• Trailblazers in banking, payments, capital markets, wealth, and asset management
• Champions of an agile, nimble, and innovative work environment
• Dedicated to building a team of top-notch professionals who share our drive and vision
• Trailblazers in banking, payments, capital markets, wealth, and asset management
• Champions of an agile, nimble, and innovative work environment
• Dedicated to building a team of top-notch professionals who share our drive and vision
OVERVIEW
We are looking for a Mid-level .NET Developer to join a team building modern, scalable backend solutions based on distributed and event-driven architecture. If you enjoy working in a microservices environment and have experience with asynchronous communication, this role is for you.
RESPONSIBILITIES
- Design, develop, and maintain backend applications using .NET
- Build and maintain microservices-based systems
- Design and optimize PostgreSQL databases
- Implement asynchronous communication using RabbitMQ
- Contribute to system architecture and technical design decisions
- Write unit and integration tests
- Participate in code reviews and ensure high code quality
- Collaborate closely with frontend developers, QA, and DevOps teams
- Important: Work schedule - Sunday-Thursday - 7:30-15:30 CET
- 4-5+ years of experience with .NET / .NET Core
- Strong proficiency in C#
- Hands-on experience with PostgreSQL (schema design, query optimization)
- Practical experience with RabbitMQ or another message broker
- Experience building and consuming REST APIs
- Good understanding of design patterns and Clean Code principles
- Experience with Git
- Ability to work in an Agile environment
NICE TO HAVE
- Experience with microservices architecture
- Knowledge of Docker and/or Kubernetes
- Experience with CI/CD pipelines
- Understanding of event-driven architecture
- Experience working with high-availability systems
ONLINE RECRUITMENT PROCESS STEPS
- Screening call with the Recruiter
- Hiring Manager Technical Interview
- Client stage
- Feedback/Offer
We offer a flexible collaboration model based on a B2B contract, with the opportunity to work on diverse projects.
Top Skills
.Net,.Net Core,C#,Postgresql,Rabbitmq,Rest Api,Git,Microservices,Docker,Kubernetes,Ci/Cd,Event-Driven Architecture
Capco New York, New York, USA Office





Inside the Empire State Building in the heart of NYC is where you will find our office. Near all public transportation it is a commuters dream.
Similar Jobs at Capco
Fintech • Professional Services • Consulting • Energy • Financial Services • Cybersecurity • Generative AI
The Lead .NET Engineer will design and enhance applications for a Sales Planning web application, collaborating with teams to deliver scalable solutions.
Top Skills:
.Net 8BlazorBootstrapC#CSSEntity Framework CoreHTMLJavaScript
Fintech • Professional Services • Consulting • Energy • Financial Services • Cybersecurity • Generative AI
Lead end-to-end delivery of large-scale banking transformation programs, manage multi-stream teams and vendors, oversee governance, risk, budgets, timelines, regulatory compliance, and change management to align technical delivery with business objectives.
Top Skills:
Agile,Waterfall,Hybrid Delivery Methodologies
Fintech • Professional Services • Consulting • Energy • Financial Services • Cybersecurity • Generative AI
Lead requirements gathering, gap analysis, and process redesign for banking transformation programs. Collaborate with stakeholders, vendors, and IT to define target-state solutions, translate needs into functional specs/user stories, support SIT/UAT testing, change management, and ensure regulatory and compliance alignment.
What you need to know about the NYC Tech Scene
As the undisputed financial capital of the world, New York City is an epicenter of startup funding activity. The city has a thriving fintech scene and is a major player in verticals ranging from AI to biotech, cybersecurity and digital media. It also has universities like NYU, Columbia and Cornell Tech attracting students and researchers from across the globe, providing the ecosystem with a constant influx of world-class talent. And its East Coast location and three international airports make it a perfect spot for European companies establishing a foothold in the United States.
Key Facts About NYC Tech
- Number of Tech Workers: 549,200; 6% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Capgemini, Bloomberg, IBM, Spotify
- Key Industries: Artificial intelligence, Fintech
- Funding Landscape: $25.5 billion in venture capital funding in 2024 (Pitchbook)
- Notable Investors: Greycroft, Thrive Capital, Union Square Ventures, FirstMark Capital, Tiger Global Management, Tribeca Venture Partners, Insight Partners, Two Sigma Ventures
- Research Centers and Universities: Columbia University, New York University, Fordham University, CUNY, AI Now Institute, Flatiron Institute, C.N. Yang Institute for Theoretical Physics, NASA Space Radiation Laboratory






