We’re building Lightning, a platform powering large-scale sales and operations for the fiber internet industry in the US. The system is live and scaling fast, and we’re entering a phase where deep architectural improvements are needed to support growth, performance, and new features.
We’re looking for a Senior Full-Stack Engineer who can:
Take ownership of critical parts of our .NET Core + React codebase.
Contribute to refactoring and restructuring to improve scalability and maintainability.
Collaborate with both web and mobile teams to align architecture and standards.
Mentor juniors/mids through code reviews and knowledge sharing.
Help us raise the overall technical bar while shipping features that matter.
This role is ideal for someone who is senior in skill, not just title — a developer ready to own critical parts of the system and grow into more leadership responsibility.
4+ years professional experience in full-stack software development.Strong skills in .NET Core, C#, Entity Framework, SQL.Solid experience with React.js (React Native a plus).Familiarity with clean architecture, design patterns, and scalable system design.Experience participating in code reviews and mentoring junior developers.Strong communication skills in English (written and spoken).Bonus Points:Experience with large-scale SaaS platforms.Knowledge of CI/CD, Docker, AWS/Azure.Hands-on experience with mobile (React Native) + web integration.