Senior Software Engineer (C#)

Why Join Exadel

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.

What powers it all? Our people are ambitious, collaborative, and constantly evolving.

About the Client

The Client is a custom software development company committed to providing quality IT solutions that facilitate and add value to clients’ businesses. They offer a full spectrum of custom software services, including web and mobile application development.

What You’ll Do  

• Take full ownership of C# services responsible for high-scale data ingestion and real-time security analysis


• Ensure the engine operates reliably across diverse customer environments


• Navigate, maintain, and enhance a complex codebase using semi-functional programming paradigms


• Uphold high standards of code quality and mathematical correctness in security detections


• Identify and resolve support-related bugs through deep-dive analysis


• Participate in live troubleshooting sessions with end-users


• Design and implement ad-hoc improvements and tailored solutions for specific customer architectural needs


• Help ensure the product remains a gold standard in identity security

What You Bring  

• Advanced C# Mastery: Deep expertise in the .NET ecosystem and modern C# development.


• Functional Programming Mindset: Familiarity with or a strong interest in functional programming concepts (immutability, pure functions, etc.) applied within C#.


• Complex System Debugging: Proven ability to navigate, understand, and debug large-scale, multi-threaded codebases.


• Customer-Facing Maturity: The professional confidence and communication skills required to lead live technical troubleshooting sessions with global customers.


• Performance Engineering: Experience in optimizing high-throughput data processing services.


• 4+ years of experience in Backend development with a focus on C#.


• Strong analytical and mathematical thinking, suited for a semi-functional code environment.


• Full English Proficiency: Essential for clear communication during live support sessions and collaboration with international teams.


• Experience with Active Directory, LDAP, or Cloud Identity providers – A significant advantage.

English level

Upper-Intermediate

Legal & Hiring Information

• Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more


• Reasonable accommodations are available to enable individuals with disabilities to perform essential functions


• Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs

Your Benefits at Exadel 

Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.

• International projects


• In-office, hybrid, or remote flexibility


• Medical healthcare


• Recognition program


• Ongoing learning & reimbursement 


• Well-being program


• Team events & local benefits 


• Sports compensation 


• Referral bonuses 


• Top-tier equipment provision

Exadel Culture

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.