Full-Stack Developer (Node.js + React)

Altamira is a software development outsourcing company focused on delivering impactful, cost-efficient, and high-quality solutions for client growth and productivity. Our expertise spans product and technology development.

Our service delivery teams operate across Slovakia, Ukraine, and the Middle East, with plans to expand into Europe, the UK, and the US. We specialize in EdTech, Fintech, eCommerce, and Pharma industry verticals.

We are seeking a skilled Full-Stack Developer (Node.js + React) to join our team for a long-term outstaffing project with an international client. In this role, you will be fully integrated into the client's engineering team, collaborating closely with their engineers, product managers, and stakeholders.

Project Overview

You will contribute to an established product with an active development roadmap, focusing on building and maintaining scalable back-end services and complex front-end applications. This role involves working with modern JavaScript and TypeScript technologies, alongside maintaining and extending legacy systems. We seek a highly autonomous and ownership-driven individual capable of thriving in a distributed team environment.

Requirements

Back-end (Node.js, with PHP/Laravel exposure)

• Deep, hands-on experience with Node.js in production environments.
• Strong knowledge of TypeScript and modern JavaScript.
• Experience designing and implementing RESTful APIs.
• Understanding of back-end architecture patterns, including layered architecture, modular design, and separation of concerns.
• Solid understanding of asynchronous programming, the event loop, and performance considerations in Node.js.
• Experience working with SQL databases, including query optimization, transactions, and migrations.
• Knowledge of authentication and authorization mechanisms (JWT, OAuth, role-based access).
• Experience with error handling, logging, and monitoring in back-end services.
• Ability to write maintainable and testable code (unit and integration tests).
• Practical experience working with PHP and Laravel in production environments.
• Ability to maintain and extend existing Laravel-based services.
• Comfort working with and debugging legacy PHP/Laravel codebases.

Front-end (React.js)

• Strong experience building complex applications with React.
• Confident use of modern React patterns (hooks, context, controlled components).
• Experience with state management solutions (Redux, React Query, or similar).
• Ability to design and implement scalable component architectures.
• Strong understanding of front-end performance optimization (memoization, rendering control, code splitting).
• Experience working with forms, validation, and complex UI state.
• Knowledge of accessibility (a11y) and cross-browser compatibility.
• Experience integrating front-end applications with APIs and handling asynchronous data flows.
• Ability to maintain consistent UI/UX in large codebases.

Responsibilities

• Develop and maintain back-end services using Node.js and TypeScript.
• Design, implement, and evolve RESTful APIs.
• Maintain and extend existing PHP and Laravel services.
• Build and maintain complex front-end applications using React.
• Collaborate closely with the client's team on feature development and technical decisions.
• Ensure code quality through testing, code reviews, and best engineering practices.
• Work with existing and legacy systems, improving stability and maintainability.
• Take ownership of features end-to-end, from implementation to delivery.
• Contribute to performance, reliability, and scalability improvements across the full stack.

Our Recruitment Process

Our transparent recruitment journey typically takes up to 2 weeks and includes the following stages:

• Recruiting Interview (30-45 min)
• Technical Interview (1-1.5h)
• Client Interview (optional, up to 1h)
• Pre-Offer Call (15min)
• Reference Check
• Offer

What We Offer

• Competitive salary with opportunities for development and growth.
• Possibility to work from our Bratislava and Kyiv offices or fully remotely.
• Supportive management, engaging tasks, and continuous assistance.
• Medical insurance (optional).
• English language courses.
• Provision of technical equipment.
• 20 workdays of paid vacation, paid sick leave, and regular salary reviews.
• Flexible schedule and ability to manage your working hours.
• Support for personal growth and skills upgrading.
• A great team environment, support for initiatives, and the ability to contribute to common goals.

At Altamira, we believe that our success is intrinsically linked to the success of our Talents and our Clients.