Backend Developer; Node.js
Position: Backend Developer (Node.js)
Backend Developer (Node.js)
Ixilix is a technology-driven company that builds high-quality solutions and long-term partnerships. Our team is growing, and we are looking for a Middle + Backend Node.js Developer
.
Requirements
• 4+ years of commercial experience as a Backend / Node.js Developer
• Strong knowledge of Node.js and backend development principles
• Production experience with Nest.js and Next.js
• Deep understanding of network protocols
: HTTP/HTTPS, TCP, Web Socket (and common messaging patterns)
• Strong experience with databases:
MySQL
, MongoDB
, Redis
, Click House
• Proven experience in database optimization
: query optimization, indexing strategies, schema refactoring
• Strong knowledge of RxJS and reactive programming
• Excellent understanding of OOP, SOLID principles
, and design patterns
• Strong Git skills (branches, rebasing, resolving conflicts)
• Experience optimizing application performance and scalability
• English B1
Responsibilities
• Develop, maintain, and scale backend services using Node.js
• Build and support applications based on Nest.js and Next.js
• Design and implement REST APIs and Web Socket-based services
• Work closely with frontend and full-stack developers to deliver end-to-end solutions
• Participate in code reviews and contribute to high code quality standards
• Optimize backend performance and system reliability
• Refactor existing codebase and improve service architecture
• Design, refactor, and optimize database schemas
• Investigate and resolve complex production issues
Nice to have
• Experience with high-load systems
• Understanding of event-driven architectures
• Experience with message brokers (Kafka, Rabbit
MQ, etc.)
• Experience with microservices or modular backend architectures
• Experience in game, gambling, or real-time systems (optional)
Competencies
• Strong analytical and problem-solving skills
• Ability to work with complex legacy systems
• Clear communication and collaboration skills
• Ownership mindset and responsibility for delivered solutions
• Proactive approach to improvements and refactoring
What we offer:
Rewards & Celebrations
• Quarterly Bonus System
• Team Buildings Compensations
• Memorable Days Financial Benefit
Learning & Development
• Annual fixed budget for personal learning
• English Language Courses Compensation
Time Off & Leave
• Paid Annual Leave (Vacation) - 24 working days
• Sick leave - unlimited number of days, fully covered
Wellbeing Support
• Mental Health Support (Therapy Compensation)
• Holiday Helper Service
Workplace Tools & Assistance
• Laptop provided by Company (after probation)
Work conditions:
• Remote work from EU
• Flexible 8-hour workday, typically between 9:00 - 18:00 CET
• Five working days, Monday to Friday
• Public holidays observed according to Ukrainian legislation
• Business trips to Bratislava every 3-6 months (company provides compensation of expenses)
At Ixilix, we value transparency, trust, and ownership. We believe that great results come from people who care - about their work, their team, and the impact they create.
Sounds like you? Let’s connect! We’re just one click away.
#J-18808-Ljbffr
Apply Now
Apply Now
Backend Developer (Node.js)
Ixilix is a technology-driven company that builds high-quality solutions and long-term partnerships. Our team is growing, and we are looking for a Middle + Backend Node.js Developer
.
Requirements
• 4+ years of commercial experience as a Backend / Node.js Developer
• Strong knowledge of Node.js and backend development principles
• Production experience with Nest.js and Next.js
• Deep understanding of network protocols
: HTTP/HTTPS, TCP, Web Socket (and common messaging patterns)
• Strong experience with databases:
MySQL
, MongoDB
, Redis
, Click House
• Proven experience in database optimization
: query optimization, indexing strategies, schema refactoring
• Strong knowledge of RxJS and reactive programming
• Excellent understanding of OOP, SOLID principles
, and design patterns
• Strong Git skills (branches, rebasing, resolving conflicts)
• Experience optimizing application performance and scalability
• English B1
Responsibilities
• Develop, maintain, and scale backend services using Node.js
• Build and support applications based on Nest.js and Next.js
• Design and implement REST APIs and Web Socket-based services
• Work closely with frontend and full-stack developers to deliver end-to-end solutions
• Participate in code reviews and contribute to high code quality standards
• Optimize backend performance and system reliability
• Refactor existing codebase and improve service architecture
• Design, refactor, and optimize database schemas
• Investigate and resolve complex production issues
Nice to have
• Experience with high-load systems
• Understanding of event-driven architectures
• Experience with message brokers (Kafka, Rabbit
MQ, etc.)
• Experience with microservices or modular backend architectures
• Experience in game, gambling, or real-time systems (optional)
Competencies
• Strong analytical and problem-solving skills
• Ability to work with complex legacy systems
• Clear communication and collaboration skills
• Ownership mindset and responsibility for delivered solutions
• Proactive approach to improvements and refactoring
What we offer:
Rewards & Celebrations
• Quarterly Bonus System
• Team Buildings Compensations
• Memorable Days Financial Benefit
Learning & Development
• Annual fixed budget for personal learning
• English Language Courses Compensation
Time Off & Leave
• Paid Annual Leave (Vacation) - 24 working days
• Sick leave - unlimited number of days, fully covered
Wellbeing Support
• Mental Health Support (Therapy Compensation)
• Holiday Helper Service
Workplace Tools & Assistance
• Laptop provided by Company (after probation)
Work conditions:
• Remote work from EU
• Flexible 8-hour workday, typically between 9:00 - 18:00 CET
• Five working days, Monday to Friday
• Public holidays observed according to Ukrainian legislation
• Business trips to Bratislava every 3-6 months (company provides compensation of expenses)
At Ixilix, we value transparency, trust, and ownership. We believe that great results come from people who care - about their work, their team, and the impact they create.
Sounds like you? Let’s connect! We’re just one click away.
#J-18808-Ljbffr
Apply Now
Apply Now