Senior .NET Developer

Talan Group; Warszawa; On-site; PLN 213,038 - 298,253; Full time

Benefits offered by this job

Permanent full-time contract

Career development opportunities

Training opportunities in finance and technology

Job summary

An international consulting group is seeking a Senior Developer in Warsaw to build a new greenfield solution in electronic trading within the fixed income space. The role involves ensuring high-quality software delivery using best practices in code management and testing. Ideal candidates should have a strong understanding of .Net/.Net Core, experience in RESTful API development, and familiarity with AWS. This hybrid position offers opportunities for career development in a multicultural environment.

Qualifications

• Deep understanding of .Net/.Net Core with OO principles.
• Experience in RESTful API techniques.
• Solid understanding of multi-threading and asynchronous programming.

Responsibilities

• Take responsibility for software delivery quality.
• Contribute to the technical design and document architecture.
• Collaborate effectively with partner technology teams.

Skills

.Net/.Net Core

ASP.NET Core Web API

SQL and NoSQL databases

Docker

Middleware messaging services

Continuous integration and delivery tools

Education

Bachelor degree in Computer Science or related field

Job description

Talan is an international consulting group specializing in innovation and business transformation through technology. With over 7,200 consultants in 21 countries and a turnover of €850M, we are committed to delivering impactful, future-ready solutions.

Talan at a Glance

Headquartered in Paris and operating globally, Talan combines technology, innovation, and empowerment to deliver measurable results for our clients. Over the past 22 years, we’ve built a strong presence in the IT and consulting landscape, and we’re on track to reach €1 billion in revenue this year.

Our Core Areas of Expertise

• Data & Technologies: We design and implement large-scale, end-to-end architecture and data solutions, including data integration, data science, visualization, Big Data, AI, and Generative AI.
• Cloud & Application Services: We integrate leading platforms such as SAP, Salesforce, Oracle, Microsoft, AWS, and IBM Maximo, helping clients transition to the cloud and improve operational efficiency.
• Management & Innovation Consulting: We lead business and digital transformation initiatives through project and change management best practices (PM, PMO, Agile, Scrum, Product Ownership), and support domains such as Supply Chain, Cybersecurity, and ESG/Low-Carbon strategies.

We work with major global clients across diverse sectors, including Transport & Logistics, Financial Services, Energy & Utilities, Retail, and Media & Telecommunications.

Job Description

As a Senior developer you will be responsible for ensuring the team delivers high quality software, using industry best practices for code management, testing and CI/CD. This is an exciting opportunity to build a new greenfield solution, working as part of a small team, to help the business improve their electronic trading capabilities within the fixed income space. The platform itself is built on top of AWS and makes use of many services within the AWS ecosystem.

Job Responsibilities / Role

• Take responsibility for the software delivery by ensuring quality and scope expectations are met.
• Contribute and take ownership of the technical design and ensure all aspects of the system architecture are well documented.
• Work closely with partner technology teams and to collaborate effectively.

Qualifications

Technical Skills Required:

• Very deep understanding of .Net/.Net Core and solid understanding of OO principles.
• Experience in ASP.NET Core Web API and RESTful API techniques.
• Solid understanding of and experience with multi-threading and asynchronous programming.
• Familiar with SQL and NoSql databases.
• Hands‑on experience with containerisation solutions like Docker.
• Experience designing and building API based service oriented or microservice architectures.
• Diligent with automated testing i.e. NUnit/Moq/Cucumber etc.
• Strong experience with middleware messaging services like Rabbit MQ, TIBCO, SignalR etc.
• Solid experience with continuous integration and continuous delivery tools like Git, TeamCity etc.

Nice to have Skills:

• Experience configuring continuous integration and continuous delivery tools.
• Experience using AWS platform.

Qualities & Skills

• Energetic, motivated and determined.
• Pragmatic and results-oriented.
• Adaptable to diverse set of technical responsibilities.
• Excellent analytical and problem solving skills.
• Productive and able to manage time effectively.
• Strong written and verbal communication skills.

Qualifications

Bachelor degree in Computer Science / Information Technology or a related field, or substantial practical experience of software delivery at an advanced level.

Additional Information

What do we offer you?

• Hybrid position based in Warsaw, Poland.
• Permanent, full-time contract with career development opportunities.
• Chance to work in a challenging, multicultural environment with international projects.
• Exposure to large-scale financial IT systems and cross-country operations.
• Training opportunities to develop new skills in finance, technology, and data management.

Talan Spain’s commitment to non-discrimination based on gender, race, ideology, or any other reason, in accordance with the company’s "Equality Plan" and the current regulations on gender equality between women and men (Royal Decree-Law 6/2019).