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MidSenior Full-Stack SDE (React+C#)

Akvelon

Job Location:

Belgrade - Serbia

Monthly Salary: Not provided by the employer

Posted: 21 July 2026 (17 days ago)

Application Deadline: 18 October 2026

Vacancies: 1 Vacancy

Job Summary

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# 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: