Java Backend Tech Lead - Production Systems & Architecture

Location: Bucharest, Romania

Thales is a global technology leader trusted by governments, institutions, and enterprises to tackle their most demanding challenges. From quantum applications and artificial intelligence to cybersecurity and 6G innovation, our solutions empower critical decisions rooted in human intelligence. Operating at the forefront of defence and security, aerospace and space, cybersecurity and digital identity, we’re driven by a mission to build a future we can all trust.

In Romania, we are advancing innovation through software engineering, research and development, delivering solutions in key markets in which Thales Group operates. Our engineers design, develop and integrate solutions that impact global industries – from fully operational systems and subsystems for naval warfare and maritime security operations, to air traffic management systems, satellite-based solutions, tactical indoor simulations, identity and biometric technologies and more.

Ready to code the future with Thales Romania? We are looking for a Tech Lead Backend Software Developer (Java 21, Spring Boot 3, Spring Batch) to join a passionate global team driving front-line innovation in AI, banking, energy, aerospace, security, and beyond, delivering real value across industries including AI, banking, energy, aerospace, security, and more.

🌍 Context:

We’re working with a top shipping company to enhance container maritime tracking.

Your mission: enable real-time land transport monitoring (inland tracking) in a carrier haulage context. Data comes from multiple providers, then is processed, enriched, and distributed to internal and external customers via APIs, push notifications, and EDI.

✅ Responsibilities:

As a Tech Leader Backend Software Developer , you will:

• •Design the technical architecture for new features
• •Lead and perform code reviews
• •Ensure quality, performance, and maintainability of delivered developments
• •Act as a technical referent for the team
• •Participate in architectural choices
• •Collaborate with PPO and business teams
• •Participate in incident resolution
• •Own production-related challenges: deployment, supervision, incident analysis, performance optimization, and maintenance in operational conditions

🔥 Required Competencies/Experience:

• •Master’s degree or engineering diploma
• •Proven experience in software development, would be a plus experience as a technical leader
• •Strong understanding of Agile (Scrum frameworks)

Tech Stack:

• •Java 21
• •Spring Boot 3
• •Spring Batch
• •REST APIs (Swagger/OpenAPI)
• •PostgreSQL (+ PostGIS)
• •AWS Kinesis / AWS Lambda (Streaming + serverless)
• •Flink (stream processing)
• •Docker (deployment)

🌐 Soft Skills:

• •Strong teamwork mindset, including remote collaboration
• •Dynamic and proactive problem-solving
• •Solution-oriented, resourceful, innovative
• •Ability to work independently and take ownership
• •Adaptable to change

👉 If you enjoy building and leading high-impact backend systems in production environments, we’d love to meet you. Apply now and help us deliver reliable tracking services at scale!

Connect with Andreea Burcea, Talent Acquisition Partner #LI-BA1 who is eager to explore together with you this exciting opportunity.

At Thales, we’re committed to fostering a workplace where respect, trust, collaboration, and passion drive everything we do. Here, you’ll feel empowered to bring your best self, thrive in a supportive culture, and love the work you do. Join us, and be part of a team reimagining technology to create solutions that truly make a difference – for a safer, greener, and more inclusive world.