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Senior/Lead Software Engineer (.NET+AWS+IdM)

Today Sofia, Bulgaria

Why Join Exadel

Exadel is an AI-first global tech company with 25+ years of engineering excellence, 2,000+ professionals, 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 — ambitious, collaborative, and constantly evolving.

About the Client

Our client is a global leader in financial and audit software solutions, empowering professionals in accounting, compliance, and data analytics to work smarter and more securely. The company serves thousands of organizations worldwide, from mid-sized firms to large enterprises, helping them modernize workflows, ensure regulatory compliance, and enhance data integrity across complex ecosystems.

They are currently undergoing a major cloud transformation, evolving their product suite into a secure, scalable, and AI-ready SaaS platform. This modernization initiative focuses on improving system performance, implementing advanced Identity and Access Management (IAM) capabilities, and strengthening security and governance across their product ecosystem - paving the way for the next generation of intelligent audit and financial solutions.

Project Tech Stack

The project is centered on building a secure, scalable, and high-performance IAM platform using .NET 8/10, C#, and AWS Cloud. The backend solution is powered by microservices, Aurora PostgreSQL, Redis, and EKS, with a strong emphasis on performance, security, and reliability. Key components include Auth0-based authentication, custom authorization services (RBAC/ABAC), and observability tooling, ensuring operational transparency and high availability.

What You’ll Do

  • Lead the design and delivery of backend and cloud-native solutions built on .NET and AWS
  • Collaborate with the Solution Architect to define technical direction, standards, and implementation best practices
  • Guide and oversee the engineering team, resolving technical challenges and ensuring high-quality, on-time delivery
  • Integrate and optimize IAM components (e.g., Auth0) in accordance with OAuth 2.1, OIDC, and Zero Trust standards
  • Review designs and code, drive technical excellence, and maintain consistency across services
  • Partner with DevOps and QA to enhance CI/CD pipelines and deployment reliability
  • Contribute across all program phases to ensure architectural alignment and consistent delivery

What You Bring

  • 8+ years of experience in .NET (C#, .NET 6–10) development, with strong backend engineering expertise
  • Proven experience leading teams and driving delivery within distributed, Agile environments
  • Deep knowledge of AWS, microservices, and event-driven architectures
  • Hands-on experience with IAM solutions (Auth0 or equivalent), OAuth 2.1/OIDC, and RBAC/ABAC models
  • Solid understanding of Aurora/PostgreSQL, Redis, and EKS
  • Excellent communication, problem-solving, and decision-making skills with a balance of technical and business focus

Nice to Have

  • Familiarity with front-end technologies (Angular, TypeScript)
  • Experience in modernization or re-architecture projects (lift-and-shift to cloud)
  • Bachelor’s or Master’s degree in Computer Science, Software Engineering, or related field

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.

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Client-provided location(s): Sofia, Bulgaria, Barra do Garças, Brazil, Zestap’oni, Georgia, Dabas, Hungary, Kėdainiai, Lithuania, Ozorków, Poland, Făgăraș, Romania, Chernivtsi, Ukraine, Nurota, Uzbekistan
Job ID: 5650438004
Employment Type: OTHER
Posted: 2025-10-27T18:33:17

Perks and Benefits

  • Health and Wellness

    • Parental Benefits

      • Work Flexibility

        • Office Life and Perks

          • Vacation and Time Off

            • Financial and Retirement

              • Professional Development

                • Diversity and Inclusion