Middle / Mid-Senior Full-Stack SDE C#, React (Serbia, Poland)
Akvelon · Armenia
Software Development · 1,001-5,000 employees
About the role
Design and maintain frontend features for repository and wiki-related products using React and TypeScript. Integrate these UI components with backend services and SQL databases to improve product reliability and performance.
What they look for
Requirements
Requires strong expertise in React and TypeScript alongside practical experience with C#, .NET, and MS SQL. Candidates must possess strong problem-solving skills and a minimum of B2 English proficiency.
Full description
We are looking for a Middle / Mid-Senior Frontend-focused Full-Stack Software Development Engineer to join a team supporting critical source control and documentation services used by internal engineering teams and external enterprise customers. The role is approximately 80% frontend work and 20% backend plus SQL work, with a focus on React/TypeScript UI development, service integration, troubleshooting, and product improvements across repository and wiki infrastructure at large scale.
Tasks
- Design, implement, and maintain frontend features for repository and wiki-related product experiences;
- Build high-quality React and TypeScript UI components and flows;
- Integrate frontend functionality with backend services and APIs;
- Support backend and SQL changes where needed as part of the 20% backend scope;
- Investigate and resolve product, performance, and reliability issues across frontend and backend touchpoints;
- Contribute to product improvements, testing, validation, and ongoing development tasks.
Requirements
- Strong frontend development experience with React and TypeScript;
- Solid understanding of modern web application architecture, UI state management, component design, and frontend quality practices;
- Practical C# and .NET backend experience for service integration and feature support;
- Solid MS SQL experience for data access, troubleshooting, and backend-adjacent tasks;
- Ability to work across frontend-heavy product development with occasional backend and SQL ownership;
- Strong troubleshooting and problem-solving skills, with the ability to dig into issues and find practical solutions;
- Strong communication skills and B2 English minimum for interactions with client stakeholders and external customers.
Nice to Have:
- Experience with Azure DevOps or source-control-related products;
- Understanding of Git concepts or repository tooling;
- Experience with performance optimization for large-scale web applications.
Benefits
Working Conditions: Overlap: by 10AM PST. B2B contract
Locations: Serbia, Poland, Bosnia
