Senior Full Stack Engineer (React, Node & Nest)

Описание на позицията

Tieto Tech Consulting (MentorMate from 2001 to 2026) provides design-led, data-centric, and AI-powered digital engineering & consulting services to enterprises worldwide. 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.

This role is based on a hybrid work model, with 3 days per week in our Sofia office.

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 tools like 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

What We Offer Work where you wantChoose to work remotely, in-office, or a combination of the two

Professional growthClear career path with vertical and horizontal advancement opportunities

Flexible Benefits PackageCustomize your benefits with 100+ options, including additional insurance.

UpskillingVarious trainings, knowledge-sharing events, and a personal learning budget

Incentive programsRewards for referring employees, sharing knowledge, and more

Extra days offThe longer you work with us, the more paid leave you get

Social eventsEnjoy team gatherings and communities of interest

Giving to othersTake part in various charity and volunteer activities

Mental wellnessAccess to a counseling support package if needed

About Tieto Tech Consulting Tieto Tech Consulting provides design-led, data-centric, and AI-powered digital engineering and consulting services to enterprises worldwide. With a strong heritage of Nordic quality, local presence, and global-scale operations, we are backed by more than 8,500 IT professionals. Our team creates people-first experiences and builds tailored digital solutions, cloud, BI, and AI systems. We integrate modern data platforms and unify diverse enterprise software solutions into scalable digital ecosystems, helping organizations accelerate growth, improve efficiency, and become smarter through purposeful technology. Clients trust us for our advanced data and analytics capabilities, deep industry expertise, specialized software R&D, and the strength of our multinational team. We are part of Tieto, a leading technology company with annual revenue of approximately EUR 2 billion.