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Senior Backend Developer (Node.js,.NET)

Techquarter

Cluj-Napoca Hybrid permanent

Posted: December 9, 2025

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Quick Summary

We are looking for a highly motivated and self-driven Backend Developer to join our team in Cluj-Napoca, Romania. The ideal candidate will be responsible for designing, testing, developing, and maintaining prime software experiences, with a focus on scalability, resilience, accuracy, and reliability.

Job Description

ABOUT YOU:

We are searching for a driven BackendSoftware Developer who will play a pivotal role in turning digital concepts into reality. In this position, you will be responsible for analyzing, designing, testing, developing, and maintaining prime software experiences.

Are you someone who is highly motivated, self-driven, and capable of tackling ambitious product development goals? Our objective is to ensure seamless interoperability between applications and platform services, with a strong emphasis on scalability, resilience, accuracy, and reliability. We are looking for individuals who share our focus and dedication.

The first three months will require full-time office presence, after which the position will allow for a flexible schedule with 2-3 days per week in the office.

If this resonates with you, then keep reading below. We also expect you to take full ownership of the software artifacts you create, while consistently upholding the highest technical standards and delivering exceptional customer experiences.


IN THIS ROLE YOU WILL::
• Design, develop, and maintain scalable, high-quality web applications and APIs, with a focus on C#.NET and TypeScript/JavaScript services.
• Build secure, reliable, and compliant solutions with an emphasis on scalability, performance, and maintainability.
• Collaborate with user experience designers, product managers, and other engineers to deliver new features, platform improvements, and bug fixes.
• Write testable, reliable code and implement continuous deployment practices for production systems.
• Participate in design and code reviews, providing technical feedback to uphold engineering excellence.
• Mentor and support the career development of engineers through methodologies like pair programming and technical guidance.
• Analyze and optimize application code, APIs, and distributed systems to ensure efficiency and reliability.
• Deploy, monitor, and troubleshoot large-scale systems to maintain high availability and resolve issues in a timely manner.
• Stay current with emerging technologies, leading hands-on implementation efforts and driving innovation across the platform.


YOU ARE A GREAT FIT IF YOU BRING THE FOLLOWING::
• Bachelor's degree, or equivalent professional experience
• 5+ years of professional software development experience
• Extensive experience with one or more of the following technologies: C#.NET, TypeScript/JavaScript, Docker, Kafka, and AWS services, coupled with a strong aptitude for learning new tools and frameworks
• Experience building RESTful APIs and working with databases
• In-depth knowledge of large-scale web application design, including clustering, caching, performance tuning, and scalability strategies
• Understanding of agile methodologies like Scrum, Kanban, and agile engineering practices like Test-Driven Development, Continuous integration, and other Extreme programming practices
• Excellent communication and interpersonal skills


WHAT ABOUT US

We’re a results-driven team of IT professionals with a knack for innovation and using the latest technologies to help enterprises achieve digital transformation. Our winning formula encompasses a holistic approach to software development, expert guidance, and a trusted partnership.
Our mission is to help build cutting-edge software solutions specifically designed to improve operational efficiency, increase productivity, help alleviate costs, and enhance customer experience.

WHAT WE OFFER:

🏥 Comprehensive Medical Insurance to ensure you're covered.
🏋️ Monthly Gym allowance up to 150 RON to keep you active and fit.
🌴 24 holiday days plus 3 bonus days off for rest and relaxation.
🎂 A day off on your Birthday because it's your special day!
🏡 3 days of remote work per week for work-life flexibility.
📚Bookster
🛠️ Technical Trainings & Certificates to keep your skills sharp.
🎓 Learning & Development sessions to fuel your growth.
🍽️ Weekly breakfast/lunch at the office to fuel your productivity.
🏞️ GetTogethers and other community events

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