Zenitech is seeking an experienced Lead Full Stack Engineer to spearhead a critical integration project with a leading global SaaS company. You will have the chance to work on a project focusing on a highly analytical, data-rich platform used by Fortune 500 enterprises and major consulting firms for organizational design and workforce planning.

Your role will be not just to code but to drive architectural decisions, champion best practices, and help enhance the platform’s core capabilities, focusing on data visualization, micro-frontend adoption, and system scalability.

What you will do

Deliver software features into production in a data-rich SaaS environment
Develop scalable backend and frontend components (React, Kotlin, TypeScript)
Drive best practices within SDLC (CI/CD, observability, testing)
Collaborate with product and design teams to refine features
Participate in code reviews, refactoring, and performance optimization
Support componentization, microservices, and micro-frontends adoption
Ensure code quality via TDD/BDD and test automation
Work in an Agile team, contributing to incremental value delivery

Requirements

Proven track record delivering software features in production (ideally B2B SaaS)
Strong software engineering background with React + backend (Kotlin)
Experience with microservices/micro-frontends
Proficiency in CI/CD, Git, observability, testing frameworks
Strong communication and collaborative mindset

Nice To Have

Familiarity with AI/ML concepts
Exposure to Kubernetes/Docker in production environments
Knowledge of design patterns and SOLID principles
Familiarity with micro-frontend architecture

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 program

Additional benefits based on location:

Hungary

Extensive cafeteria package tailored to your needs (including SZÉP card)

Romania

Bookster library subscription, and 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 Romania and Hungary.

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.