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Senior C# Developer

Talan
Polandfull_timeVerifiedPosted 19 Nov 2025

About the role

<h3>Company Description</h3><p>🌍 <strong><em>Why Talan?</em></strong></p><p><strong>Talan – Positive Innovation</strong></p><p>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.</p><p><strong>Talan at a Glance</strong></p><p>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.</p><p><strong>Our Core Areas of Expertise</strong></p><ul><li><p><strong>Data &amp; Technologies: </strong>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.</p></li><li><p><strong>Cloud &amp; Application Services: </strong>We integrate leading platforms such as SAP, Salesforce, Oracle, Microsoft, AWS, and IBM Maximo, helping clients transition to the cloud and improve operational efficiency.</p></li><li><p><strong>Management &amp; Innovation Consulting:</strong> 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.</p></li></ul><p><strong>We work with major global clients across diverse sectors, including Transport &amp; Logistics, Financial Services, Energy &amp; Utilities, Retail, and Media &amp; Telecommunications.</strong></p><h3>Job Description</h3><p>We are looking for a <strong>Senior C# Developer</strong> 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.</p><p><strong>Responsibilities</strong></p><ul><li><p>Design, develop, and maintain high-quality, low-latency C# services.</p></li><li><p>Continuously optimize performance and scalability of applications.</p></li><li><p>Collaborate with quantitative analysts and traders to understand requirements and translate them into technical solutions.</p></li><li><p>Participate in Agile development processes and contribute to Scrum/Kanban team ceremonies.</p></li><li><p>Conduct code reviews and maintain high coding standards.</p></li><li><p>Implement DevOps practices to ensure continuous integration, delivery, and reliable infrastructure.</p></li><li><p>Mentor and provide technical guidance to junior team members.</p></li></ul><p><strong>Qualifications</strong></p><p><strong>Experience:</strong></p><ul><li><p><strong>Minimum of 7 years</strong> of professional experience in <strong>C# development</strong>.</p></li><li><p>Strong knowledge of the <strong>.NET 6+</strong> runtime and related frameworks.</p></li><li><p>Demonstrated experience in low-latency programming concepts and techniques.</p></li><li><p>Proficiency with <strong>Aeron </strong>and <strong>SBE </strong>for low-latency messaging.</p></li><li><p>Experience with<strong> Docker, containerization, and cloud platforms</strong> (<strong>AWS</strong> preferred).</p></li><li><p>Solid understanding of <strong>DevOps practices</strong> and automation for <strong>CI/CD pipelines</strong>.</p></li><li><p>Experience working in Agile teams, following Scrum or Kanban methodologies.</p></li></ul><p><strong>Education:</strong></p><ul><li><p>Bachelor’s degree in Computer Science, Engineering, or a related technical field.</p></li></ul><p><strong>Skills &amp; Knowledge</strong></p><p><strong>Technical:</strong></p><ul><li><p>Deep understanding of low-latency service architecture.</p></li><li><p>Hands-on experience with performance tuning and system optimization.</p></li><li><p>Knowledge of cloud infrastructure and container orchestration.</p></li><li><p>Familiarity with software development best practices, testing, and documentation.</p></li></ul><p><strong>Soft Skills:</strong></p><ul><li><p>Strong communication skills in English (written and spoken).</p></li><li><p>Ability to collaborate effectively with diverse, cross-functional teams.</p></li><li><p>Analytical mindset and proactive problem-solving approach.</p></li><li><p>Leadership skills and experience mentoring junior developers.</p></li></ul><p><strong>Nice to Have:</strong></p><ul><li><p>Previous experience in financial services, algorithmic trading, or fintech.</p></li><li><p>Familiarity with AI/ML applications in trading systems.</p></li><li><p>Certifications in cloud platforms or .NET technologies.</p></li></ul><p><strong>What We Offer

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Talan

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