Lead Full-Stack Software Engineer (.Net, Blazor)

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  

Join a high-impact modernization initiative for a leading UK PropTech company, where you'll help transform a mission-critical legacy SaaS/TOM platform into a modern, scalable solution. You'll dive deep into classic .NET monolith code to uncover and reshape complex business logic—an engaging challenge for engineers who love problem-solving at the architectural level. 

This project offers the rare opportunity to rebuild both backend and frontend from the ground up using modern frameworks, cloud-ready patterns, and clean architecture principles. Expect a strong focus on engineering excellence: analytics and monitoring instrumentation, automated testing, CI/CD maturity, and maintainable code quality. If you want to leave a lasting technical legacy and work in a team that values innovation, this is the project for you.

What You’ll Do

• Lead full-stack development across the modernization program: backend, APIs, services, and Blazor UI
• Participate in designing and implementing the migration of a legacy WebForms application → Blazor (Server or WASM)
• Develop modern .NET 7–10 backend services and help decompose monolithic components into smaller, maintainable services
• Ensure front-end and back-end alignment, define coding standards, and maintain high engineering quality
• Collaborate with the Solution Architect on technical designs, integration patterns, and architectural decisions
• Implement cloud-native solutions using Azure Cloud Services
• Conduct code reviews, mentor developers, and support best engineering practices in the team
• Troubleshoot performance, reliability, and security issues across the full stack
• Contribute to CI/CD improvements, automated testing practices, and DevOps integration

What You Bring

• 7+ years of experience in software development with strong emphasis on .NET and full-stack engineering
• Proven hands-on experience building modern UIs with Blazor (Server/WASM)
• Solid experience modernizing or extending legacy .NET applications (ASP.NET WebForms, .NET Framework)
• Strong backend experience:
• .NET 6–10, REST APIs
• microservices or modular monolith patterns
• asynchronous/parallel workflows
• Deep understanding of Azure cloud services (Azure SQL, Virtual Machines, Container Apps, and App Insights)
• Strong knowledge of relational databases (SQL Server)
• Experience working in Agile teams, leading technical discussions, and driving development efforts
• Strong communication skills and ability to mentor other developers

Nice to have

• Experience with UI/UX componentization, frontend performance tuning, or Blazor state management patterns
• Experience with event-driven systems, messaging, or CQRS/MediatR
• Prior involvement in migration/modernization initiatives
• Knowledge of domain-driven design, clean architecture, or enterprise integration patterns

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.