Tietoevry is hiring a Senior Full Stack Engineer (React, Node & Nest) - Tieto Tech Consulting (m/f/d)

Tieto Tech Consulting (MentorMate from 2001 to 2026) provides design-led, data-centric, and AI-powered digital engineering & consulting services to enterprises worldwide. With a strong heritage of Nordic quality, local presence, and global-scale operations, we are backed by 8,500+ IT professionals. Our clients trust us for advanced data and analytics skills, top industry-specific expertise, specialized software R&D, and the capabilities of a multinational team. We are part of Tieto, a leading technology company with an annual revenue of approximately EUR 2bn. Tieto Tech Consulting’s team in Bulgaria consists of 500+ professionals specializing in the development of tailored digital solutions in diverse industries. We are looking to hire a Senior Full Stack Engineer, who will play a key role in developing scalable web applications and backend-for-frontend services using React, TypeScript, Node.js, and NestJS. Working closely with cross-functional teams, you will help deliver reliable, user-focused healthcare solutions while contributing across the full software development lifecycle. The role combines hands-on engineering, collaboration, and continuous improvement, with strong emphasis on code quality, automated testing, maintainability, and Agile delivery practices. Key Responsibilities - Develop and enhance frontend functionality for modern healthcare-focused web applications - Build and maintain backend-for-frontend services using Node.js and NestJS - Collaborate closely with Product Owners, Business Analysts, designers, QA engineers, and developers to deliver high-quality features - Participate in feature refinement, technical discussions, sprint planning, and Agile ceremonies - Contribute to building scalable, maintainable, and well-tested solutions following engineering best practices - Write and maintain unit and automated tests to ensure product quality and reliability - Investigate and resolve application issues in collaboration with support and QA teams - Support continuous improvement initiatives across development processes, tooling, and team collaboration Required Experience & Qualifications - 5+ years of professional software development experience - Strong experience building modern web applications using React and TypeScript - Solid backend development experience with Node.js and NestJS - Experience working in large-scale frontend projects and distributed development teams - Strong understanding of modern frontend architecture and component-based development - Hands-on experience with automated testing frameworks such as Vitest, Jest, Cypress, or Playwright - Experience applying Test-Driven Development (TDD) and writing maintainable, well-tested code - Proficiency with Git and collaborative development workflows - Experience with styling solutions such as Tailwind CSS, Styled Components, or Emotion - Understanding of software engineering best practices, code quality, and maintainability - Strong communication skills and fluent English A significant advantage would be - Experience with UI component libraries such as Material UI - Familiarity with messaging and event-streaming platforms such as Kafka - Understanding of Web Accessibility standards and best practices - Exposure to CI/CD workflows and tools such as GitHub Actions - Experience collaborating with designers using Figma - Familiarity with design systems and reusable component libraries - Experience working in healthcare, regulated, or enterprise environments is considered an advantage - Familiarity with Agentic coding practices and AI-assisted development tools