Fullstack Software Engineer - Romania

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!