TwinCore

If you're a Senior .NET Engineer who feels ready to move beyond feature delivery and influence engineering quality at a broader level — this role might be your next step.

We’re looking for a part-time/hourly Tech Lead / Principal Developer who will shape technical standards, architectural decisions, and hiring quality across multiple projects.

This is a hands-on leadership role focused on architecture, system design, technical excellence, and decision-making — not daily feature implementation.

What makes this role different?

You won’t be measured by story points or tickets closed.
You’ll be measured by the quality bar you set, the architectural clarity you bring, and the engineers you help grow and hire.

You will work across multiple projects and domains, gaining wider system design exposure than a typical single-product role offers.

Your impact will include:

Architecture & Technical Quality

• Owning and influencing key architectural decisions (.NET, microservices, scalability)
• Conducting deep code reviews and enforcing engineering standards
• Identifying and systematically reducing technical debt
• Improving and evolving our internal framework based on real project needs
  
   

Hiring & Technical Interviews

• Leading technical interviews for Middle and Senior engineers
• Assessing architectural thinking, problem-solving depth, and engineering maturity
• Raising the hiring bar and strengthening technical evaluation standards
• Contributing to a consistent and high-quality hiring process
  
   

Pre-Sales & Strategic Contribution

• Participating in pre-sales calls
• Providing technical estimations
• Balancing long-term technical quality with business and delivery constraints
  
   

Requirements

• 6+ years of experience with Microsoft .NET
• Strong understanding of React or Angular
• Practical experience with microservices architecture
• Experience scaling systems in production
• Proven experience conducting technical interviews and performing code reviews
• English level B2+
  
   

Nice to Have

• Experience with Azure or AWS in production
• Understanding of CI/CD pipelines, monitoring, and logging
• Background in solution architecture or pre-sales engineering
• Experience improving or maintaining internal frameworks or shared platforms
• Experience working with distributed or remote teams
• Previous experience in a part-time or fractional Tech Lead / Principal Engineer role
  
   

This role is ideal for engineers who want to:

• Deepen their system design and architecture expertise
• Strengthen decision-making under real business constraints
• Develop technical leadership and interviewing skills
• Influence engineering standards beyond a single team
• Grow toward Principal, Staff Engineer, or Solution Architect roles
  
   

Engagement

• Part-time (10–20 hours per week)
• Flexible schedule, fully remote
• Focus on architecture, quality, and technical leadership
   

If you are ready to operate at a higher level of technical influence and expand both your technical depth and soft skills, we would be glad to connect.