Lead software engineer driving technical direction across backend platforms, engineering scalability, and long-term system evolution.

My work focuses on shaping technical roadmaps, improving engineering foundations, and translating business complexity into reliable and scalable technical solutions.

I work across backend engineering, platform architecture, cloud optimization, technical leadership, mentoring, and engineering process improvements while staying deeply hands-on with implementation and system design.

I care about engineering excellence, sustainable technical leadership, and building systems that scale both technically and organizationally.

• Architected and evolved scalable multitenant backend platforms supporting 60,000+ users across multiple providers
• Delivered measurable infrastructure and platform optimization initiatives, including payment architecture improvements reducing transaction costs by 40% and reliability improvements reducing maintenance downtime by 75%
• Led technical direction across enterprise engineering initiatives, shaping backend evolution, architectural modernization, and long-term platform strategy
• Designed developer productivity and operational excellence improvements, significantly accelerating onboarding, deployment consistency, and engineering workflows
• Built backend solutions across fintech, mobility, healthcare, privacy-tech, and enterprise platform domains
• Mentored engineers and strengthened engineering practices through technical guidance, knowledge sharing, and architecture leadership
• Delivered compliance-critical and integration-heavy backend capabilities for enterprise and regulated environments
• Progressed from hands-on engineering to platform-level technical ownership through consistent delivery and architectural impact

Defining engineering initiatives focused on backend scalability, modular platform evolution, and long-term architectural sustainability.

Designed a strategic infrastructure optimization roadmap projected to reduce cloud costs by ~45–50% through architectural rationalization, workload redistribution, and platform efficiency improvements.

Strengthening engineering execution through mentoring, delivery process improvements, and clearer architectural decision-making across backend initiatives.

• Bachelor's Degree, Information Systems Engineering
  • Faculty of Technical Sciences, University of Novi Sad
  • GPA: 9.19/10.0
  • Vega IT Scholarship Recipient (2 consecutive years)
  • Republic of Serbia Scholarship Recipient (3 years)

I’m always open to conversations around backend engineering, platform architecture, technical leadership, and building scalable systems.

Whether it’s architecture discussions, engineering collaboration, or opportunities to build impactful systems, feel free to reach out.

• 📧 Email: radojevic.stefan.sr@gmail.com
• 💼 LinkedIn: Stefan Radojevic

"The best way to predict the future is to engineer it."