Senior .NET Developer – Financial Services & Microservices
Offer summary

(Summary generated by AI based on the full job description)

The project focuses on innovative financial debt management solutions. Technologies used include C#, .NET, Domain-Driven Design, CQRS, Event-Driven Architecture (RabbitMQ/Kafka) and OpenAPI, AsyncAPI. Responsibilities cover backend development, designing distributed systems, automated testing, and optimizing microservices to ensure high performance and system observability. Benefits include medical care, Multisport access, Pluralsight subscription, and flexible working hours.

you can start ASAP

Senior .NET Developer – Financial Services & Microservices

Company: ITDS Polska Sp. z o.o.

from: 2 September 2026
to: 2 October 2026
21 000 - 24 780net (+ VAT)/ mth.B2B contract (full-time)
Offer parameters
level:mid • senior
working mode:remote
location:Wrocław, Lower Silesia
Wrocław, Lower Silesia

Requirements

Expected technologies

.NET
AsyncAPI
C#
Data Contracts
Kafka
MongoDB
Microsoft SQL Server
OpenAPI
PostgreSQL
RabbitMQ

Operating system

Linux

Our requirements

  • 5+ years of experience in a similar development role
  • Strong proficiency in C# and .NET technologies
  • Experience with Domain-Driven Design (DDD) and bounded contexts
  • Knowledge of CQRS, Eventual Consistency, and Read Model projections
  • Expertise in messaging patterns and Event-Driven Architecture (RabbitMQ/Kafka)
  • Hands-on experience with OpenAPI, AsyncAPI, and Data Contracts
  • Proficiency in automated testing (unit, integration, contract testing)
  • Experience in microservices design and asynchronous processing
  • Understanding of observability concepts (logs, metrics, tracing)
  • Familiarity with relational databases (PostgreSQL, MSSQL) and NoSQL (MongoDB)
  • Ability to collaborate effectively with business teams to refine requirements
  • Polish: Good command
  • English: Communicative level

Optional

  • Relevant certifications in cloud or microservices architecture
  • Experience working in Agile teams

Your responsibilities

  • Develop backend services using C# and .NET technologies to drive financial solutions
  • Implement Domain-Driven Design (DDD) principles and tactical patterns for robust architecture
  • Design and build distributed systems with CQRS and Eventual Consistency to ensure high performance and reliability
  • Utilize messaging patterns and Event-Driven Architecture (EDA) to enable seamless communication between services
  • Manage API contracts using OpenAPI, AsyncAPI, and Data Contracts for consistency and clarity
  • Implement automated testing, including unit, integration, and contract tests, to ensure quality and stability
  • Develop and optimize microservices, ensuring asynchronous synchronization for scalability
  • Enhance observability with logging, metrics, and performance monitoring to maintain system health

About the project

As a Senior .NET Developer, you will be working for our client, a leader in the financial services industry, focusing on innovative debt management solutions. You will collaborate with your Team Lead and the development team to deliver scalable, efficient solutions. This role offers a dynamic environment where your expertise will directly influence cutting-edge financial technology, paving the way for career growth and innovation.
Unleash the Power of Innovation — Shape the Future of Financial Technology!
Wroclaw-based opportunity with remote work model
Only candidates with an existing legal right to work in the European Union will be considered for this role.

This is how we organize our work

This is how we work

at the client's site

This is how we work on a project

  • Continuous Deployment
  • Continuous Integration

#GETREADY to meet with us!

ITDS Business Consultants is involved in many various, innovative and professional IT projects for international companies in the financial industry in Europe. We offer an environment for professional, ambitious, and driven people.
We would like to meet you. If you are interested please apply and attach your CV in English or Polish, including a statement that you agree to our processing and storing of your personal data.

ITDS’s Whistleblower Procedure

📌 You can report violations in accordance with ITDS’s Whistleblower Procedure available here: https://itds.pl/wp-content/uploads/2025/03/INFORMATION-ON-PROCEDURE-FOR-REPORTING-BREACHES-AND-PROTECTION-OF-WHISTLEBLOWERS-AT-ITDS-POLSKA.pdf
Company

What we offer

  • Stable and long-term cooperation with very good conditions
  • Enhance your skills and develop your expertise in the financial industry
  • Work on the most strategic projects available in the market
  • Define your career roadmap and develop yourself in the best and fastest possible way by delivering strategic projects for different clients of ITDS over several years
  • Participate in Social Events, training, and work in an international environment
  • Access to attractive Medical Package
  • Access to Multisport Program
  • Access to Pluralsight
  • Flexible hours

Benefits

  • sharing the costs of sports activities
  • private medical care
  • flexible working time
  • fruits
  • integration events
  • corporate gym
  • saving & investment scheme
  • no dress code
  • coffee / tea
  • drinks
  • christmas gifts
  • birthday celebration
  • sharing the costs of a streaming platform subscription
  • access to +100 projects
  • access to Pluralsight

Recruitment stages

  • 1.
    online interview
  • 2.
    online interview

ITDS Polska Sp. z o.o.

ITDS supports financial service providers to take the next steps.
We identify what’s possible, every day. Opportunities in the areas of technology, organization, and digitization.
We see where banks, insurers, payment companies, or fintech can go and how they can get there.
That’s why we want to stimulate you to ramp up your ambition. Forget what you perceive as restraints and step towards the new reality.
ITDS in Poland - Pure player in new Technologies & Financial Industry
+300 IT implementation professionals
+20 clients in the Banking, Insurance, Payment & Fintech Industry
ITDS excels in digital strategy delivery and implementation of best-of-breed lending solutions. ITDS has delivered successful strategic projects throughout Europe since 1998. We combine the experience we’ve accumulated with in-depth knowledge of technologies, business processes, and EU legislation to unlock new business opportunities.

This is how we work

Senior .NET Developer – Financial Services & Microservices
21k–24.8k zł / mth. (B2B)
I apply to:
ITDS Polska Sp. z o.o.
Wrocław, Lower Silesia
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