Senior React Engineer

The Role

We are currently seeking a Senior Frontend Engineer with React expertise to join our team on a greenfield project for a leading organization in the consumer healthcare navigation sector.

This is a unique opportunity to build a Minimum Viable Product (MVP) from the ground up—a demo website that will serve as a crucial tool for their sales team. You'll be responsible for crafting a high-impact, reusable, and scalable frontend experience that effectively showcases their unparalleled consumer experience and validated claims savings to self-insured employer clients. You'll use your expertise to shape the technical architecture, ensure code quality, and collaborate closely with product and design teams to bring this vision to life.

What You Will Do

• Define the overall structure of the MVP (frontend–backend integration, hosting, deployment).
• Choose appropriate frameworks, libraries, and cloud services that allow quick delivery without over-engineering.
• Implement key features that showcase product value to the sales team (demo workflows, integrations, sample data).
• Ensure the site is responsive, usable, and polished enough for customer-facing demos.
• Write maintainable, well-structured code even under MVP timelines.

Requirements

• Strong proficiency in JavaScript (ES6+) and TypeScript.
• Hands-on experience with React.js.
• Solid understanding of state management libraries (e.g., Redux, Vuex, or Pinia).
• Knowledge of modern front-end build pipelines, tools, and workflows (Webpack, Vite, Babel).
• Familiarity with RESTful APIs.
• Strong grasp of HTML5, CSS3, and responsive design principles.
• Experience with unit and integration testing frameworks (e.g., Jest, Cypress, Testing Library).
• Familiarity with version control (Git) and CI/CD pipelines.

Nice To Have

• Strong advantage: Vue.js, Next,.JSin the skillset package, adaptability
• Experience with server-side rendering (SSR) and static site generation.
• Exposure to cloud platforms (AWS, Azure, or GCP).
• Knowledge of design systems and component libraries (e.g., Material UI, TailwindCSS).
• Understanding of accessibility (a11y) and SEO best practices.

What We Offer

• Hybrid/flexible working model and flexible working hours
• Private Medical and/or Health Insurance (location dependent)
• Length of Service Awards
• Referral programme
• The option of a cafeteria package, meal tickets, or team lunches (location dependent)
• A culture of continuous growth, supported by our People Lead system and various training resources for your personal development
• Agile mindset, simplified processes, and a great atmosphere where commitment and autonomy are celebrated
• A community-first mindset, working with talented people across technology products and consulting
• Charity events and programs
• Salary range: 3600 - 5900 EUR gross/month (Note: the specific amount will depend on your experience and competencies.)

Additional Benefits Based On Location:

Lithuania:

Discount benefits platform, the opportunity to work from abroad (max. 60 days per annum)

(*) As we hire permanent employees for this role, we offer remote opportunities only in Lithuania.

About Us

Zenitech is a leading technology solutions provider dedicated to reshaping the global digital landscape. Headquartered in the UK, Zenitech operates internationally, with offices in Lithuania, Romania, and Hungary.

We use a bespoke approach depending upon where the client is on their digital journey, comprising a combination of access to dedicated R&D labs, technology implementation advice, and specialist nearshore development talent. As an international community of individuals who are open to learn from each other, we collectively define and input into the digital future of the clients’ businesses.

Why Zenitech?

• Impactful Projects: Drive meaningful change through digital transformation projects and have an opportunity to make an impact on many different industries.
• Collaborative Culture: Be part of a diverse, inclusive team committed to growth, innovation, and continuous learning.
• Professional Growth: Zenitech supports continuous learning and development through the People Lead system, helping you advance your skills and career.

Diversity And Inclusion

Zenitech celebrates diversity in all its forms. We aim to create an inclusive environment where everyone feels valued for their unique contributions and perspectives. If you require any adjustments during the application process, please let us know—we’re here to help. Our commitment to diversity, equity, inclusion, and belonging can be found here.