Fullstack Software Engineer - Romania

Fullstack Software Engineer - Romania Break barriers, not builds. Join Onoff to flip telecom on its head with world-class devs and real SaaS power. Profitable, product-led, zero fluff - just sharp minds, and bold moves. Apply now Fullstack Engineer (Java / React) — Bucharest, Romania We’re not hiring "just another developer." We’re looking for a sharp Fullstack Engineer to join our squad in Bucharest. You will help build and scale the internal tooling and backoffice systems powering Onoff’s global telecom platform. Why Onoff? • Real Impact: Build the backoffice core driving our innovative mobile communication platform. • Hybrid Work: 3 days remote per week from our central office near Universitate (Teatrul Național). • Focused Squad Culture: Work in a lean team (1 Team Lead + 3 Engineers) where your ideas drive real decisions. • Perks & Support: Competitive pay, private health plan, extra time off, travel budget, and continuous learning support. What You’ll Do • Design, build, and maintain end-to-end backoffice features and internal tooling. • Write clean, high-performance code on the backend (Java 21/22+) and modern UIs on the frontend (React.js) • Handle full lifecycle development: implementation, CI/CD, testing, and deployment. • Take proactive ownership of quality: monitor logs (ex:Grafana), debug issues independently, and participate in code reviews. • Collaborate closely within your squad to ship fast, reliable solutions. What You Bring • Technical Core: Hands-on experience with modern Java (v21/22 mandatory) and React.js or Angular. • System Knowledge: Solid understanding of databases, deployment pipelines, and CI/CD. Microservices experience and design patterns are a strong plus. • Proactive Mindset: You take full ownership of your tasks. You don't wait for step-by-step instructions—you test, debug, and fix. • Practical Experience: Around 5 years of hands-on experience (proven project impact matters more than exact years). • Communication: Strong spoken and written English skills (B2/C1 level). Ready to build? Send your CV and let’s talk! Department Engineering Role Software Engineer Location Bucharest Remote status Hybrid Employment type Full-time Applicant tracking system by Teamtailor