Senior Full Stack Engineer (2552)

About the Position

Ciklum is looking for a Senior Full Stack Engineer to join our team full-time in Ukraine. As a Senior Full Stack Engineer, become part of a cross-functional development team engineering experiences of tomorrow.

Responsibilities7

• Design, develop, and maintain scalable full-stack applications using React, Node.js
• Develop the core product offering implemented to track and analyse billions of events on websites and apps
• Develop integrations with Supply-Side Platforms (SSPs) and Demand-Side Platforms (DSPs)
• Integrate AI/ML capabilities into our platform, including LLM APIs and on-premise model deployments
• Build agentic workflows and AI-powered automation to enhance platform capabilities
• Collaborate with product, data science, and engineering teams to deliver end-to-end solutions
• Mentor junior developers and contribute to engineering best practices

Requirements7

• 5+ years of professional software development experience
• Strong proficiency in JavaScript/TypeScript, React, and Node.js
• Experience building high-performance, low-latency distributed systems
• Strong understanding of RESTful APIs, microservices architecture, and cloud platforms (AWS/GCP)
• Experience with databases (SQL and NoSQL) and data streaming technologies
• Excellent problem-solving skills and ability to work autonomously
• Strong communication skills and collaborative mindset

Benefits6

• Strong community: Work alongside top professionals in a friendly, open-door environment
• Growth focus: Take on large-scale projects with a global impact and expand your expertise
• Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications
• Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies
• Flexibility: Enjoy radical flexibility — work remotely or from an office, your choice
• Care: We’ve got you covered with company-paid medical insurance, mental health support, and financial & legal consultations