Senior C#/.NET Developer (Azure DevOps, Databricks)

Luxoft Poland; Kraków; On-site; PLN 260,000 - 380,000; Full time

Benefits offered by this job

Private Medical & Dental care & Life

MyBenefit program

Internal Mobility program

Job summary

Luxoft Poland is seeking a senior .NET developer to lead the build of a new data and application platform for a client in investment banking. You will replace a highly experienced developer, advise the team, and set technical direction and standards.

You will design and deliver scalable back-end services, data pipelines on Databricks, and robust CI/CD processes in Azure DevOps, while mentoring others and upholding high quality and agile discipline.

Qualifications

• Minimum 10 years of professional experience as a .NET developer (C#).
• Hands-on Azure DevOps experience (repos, boards, pipelines, CI/CD).
• Proven Databricks experience and data workflow knowledge.
• Capable of acting as a technical lead and mentoring a team.
• Experience building new platforms or major systems from scratch.
• Experience in automated testing of .NET applications.
• Strong RESTful API design experience.
• Familiar with Scrum/Kanban and agile practices.

Responsibilities

• Design, develop, and maintain back-end services and APIs using .NET (C#).
• Build and optimize data pipelines and workloads on Databricks.
• Design, implement, and maintain CI/CD pipelines in Azure DevOps.
• Mentor and guide the team on architecture and best practices.
• Define and consume RESTful APIs across teams.
• Translate business requirements into robust technical solutions.
• Write and maintain automated tests (unit/integration).
• Participate in Scrum/Kanban ceremonies and agile planning.

Skills

.NET/C# expert

Azure DevOps

Databricks

Technical lead

System architecture

Automated testing

RESTful APIs

Agile/Scrum/Kanban

Communication

Mentoring

Job description

We are looking for a senior .NET developer to join our client's team and lead the build of a new data and application platform. You will replace a highly experienced developer, advise and guide the team, and set technical direction and standards. The team focuses on clean code, agile methodologies, and high-quality delivery. The client is from the investment banking industry.

Responsibilities:

• Design, develop, and maintain scalable back-end services and APIs using .NET (C#)
• Build and optimize data pipelines and workloads on Databricks
• Design, implement, and maintain CI/CD pipelines and release processes in Azure DevOps
• Advise and guide the team on architecture, design decisions, and best practices while the new platform is built
• Mentor developers and raise the technical level of the team through code reviews and pair programming
• Define and consume RESTful APIs, clearly communicating requirements and constraints across teams
• Translate business and product requirements into robust technical solutions
• Apply clean code principles and contribute to continuous improvement of engineering standards and tooling
• Write and maintain automated tests (unit, integration)
• Participate actively in agile ceremonies (Scrum/Kanban), including refinement, planning, reviews, and retrospectives
• Work closely with QA, product managers, and architects to ensure high-quality, business-aligned deliveries
• Support and improve existing applications in a fast-paced, enterprise investment-banking environment

Mandatory Skills Description:

• Minimum 10 years of professional experience as a .NET developer (C#), with a proven track record on long-term projects
• Strong hands-on experience with Azure DevOps (repos, boards, pipelines, CI/CD)
• Proven experience with Databricks
• Proven ability to act as a technical lead: advising, guiding, and mentoring a development team
• Experience building new platforms or major systems from the ground up
• Experience in automated testing of .NET applications
• Excellent problem-solving abilities
• Experience in RESTful API design
• Familiarity with agile development practices (Scrum, Kanban, etc.)
• Good communication skills and the ability to clearly state requirements to other teams

Opportunity for Poland-based candidates

Benefits

• Tax-deductible costs on a contract of employment for all development roles
• Stable employment based on an employment contract
• Private Medical & Dental care & Life Insurance
• MyBenefit program (sports card, well-being program etc.)
• Internal Mobility program - possibility of rotation between projects, locations, accounts