Senior C# Developer

Why Talan?
Talan – Positive Innovation
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
We are looking for a
Senior C# Developer
to join our algorithmic trading team. In this role, you will be responsible for designing, developing, and maintaining low-latency services and infrastructure that support algorithmic trading libraries across multiple target environments. This position involves close collaboration with quantitative analysts, traders, and cross-functional technical teams.

Responsibilities

• Design, develop, and maintain high-quality, low-latency C# services.
• Continuously optimize performance and scalability of applications.
• Collaborate with quantitative analysts and traders to understand requirements and translate them into technical solutions.
• Participate in Agile development processes and contribute to Scrum/Kanban team ceremonies.
• Conduct code reviews and maintain high coding standards.
• Implement DevOps practices to ensure continuous integration, delivery, and reliable infrastructure.
• Mentor and provide technical guidance to junior team members.

Qualifications
Experience:

• Minimum of 7 years
  of professional experience in
  C# development
  .
• Strong knowledge of the
  .NET 6+
  runtime and related frameworks.
• Demonstrated experience in low-latency programming concepts and techniques.
• Proficiency with
  Aeron
  and
  SBE
  for low-latency messaging.
• Experience with
  Docker, containerization, and cloud platforms
  (
  AWS
  preferred).
• Solid understanding of
  DevOps practices
  and automation for
  CI/CD pipelines
  .
• Experience working in Agile teams, following Scrum or Kanban methodologies.

Education:

• Bachelor's degree in Computer Science, Engineering, or a related technical field.

Skills & Knowledge
Technical:

• Deep understanding of low-latency service architecture.
• Hands-on experience with performance tuning and system optimization.
• Knowledge of cloud infrastructure and container orchestration.
• Familiarity with software development best practices, testing, and documentation.

Soft Skills:

• Strong communication skills in English (written and spoken).
• Ability to collaborate effectively with diverse, cross-functional teams.
• Analytical mindset and proactive problem-solving approach.
• Leadership skills and experience mentoring junior developers.

Nice to Have:

• Previous experience in financial services, algorithmic trading, or fintech.
• Familiarity with AI/ML applications in trading systems.
• Certifications in cloud platforms or .NET technologies.

What We Offer:

• Full-time, permanent position.
• Hybrid work model (office + remote).
• Opportunity to work in a highly innovative, international environment.
• Professional development and continuous training.
• Comprehensive benefits package including private medical and life insurance.
• Exposure to cutting-edge technologies in algorithmic trading.

If you're passionate about building high-performance trading systems and collaborating with a team of developers and quantitative analysts, we would love to hear from you