Technical Lead - Java Backend

AI in this role

openaiclaudegeminilangchainn8n

prompt-engineeringrag

Location: Bangalore - Indraprastha, India

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 aerospace and space, cybersecurity and digital identity, we’re driven by a mission to build a future we can all trust.

Present in India since 1953, Thales is headquartered in Noida and has other operational offices and sites spread across Delhi, Gurugram, Bengaluru and Mumbai, among others. Over 2200 employees are working with Thales and its joint ventures in India. Since the beginning, Thales has been playing an essential role in India’s growth story by sharing its technologies and expertise in Defence, Aerospace and Cyber & Digital sectors. Thales has two engineering competence centres in India - one in Noida focused on Cyber & Digital business, while the one in Bengaluru focuses on hardware, software and systems engineering capabilities for both the civil and defence sectors, serving global needs. The Group has also established an MRO (Maintenance, Repair & Overhaul) facility in Gurugram to provide comprehensive avionics maintenance and repair services to Indian airlines and support the growth of the local aviation industry.

Job Description:

We are looking for a highly skilled Tech Lead with strong experience in Java and Spring Boot, along with working knowledge of Cloud, DevOps, and modern AI-based tools.
The ideal candidate should have experience building scalable backend systems, working with cloud infrastructure, and exposure to emerging AI/automation technologies.
It is well-suited for someone with a strong passion for technology, committed to delivering secure and scalable solutions, and motivated by the challenges of distributed systems and complex technical problems.
This role requires hands-on development, system design, and collaboration with cross-functional teams to build high-quality, production-grade applications.

Key Responsibilities:

Design and develop scalable backend services using Java and Spring Boot
Build and maintain microservices-based architectures
Work with AWS cloud services for deployment and infrastructure
Work with Kubernetes / container-based deployments
Configure and maintain CI/CD pipelines (GitHub / GitLab / Jenkins)
Collaborate with DevOps, QA, and product teams for release management
Explore and integrate AI / automation tools (n8n, LLM APIs, agent-based workflows, prompt engineering, etc.)
Ensure code quality, performance, and security best practices
Participate in design discussions and technical reviews
Mentor junior developers when required

Required Skills:

Strong experience in Java (17+)
Strong experience in Spring Boot / Spring Framework
Experience with REST APIs / Microservices
Working experience with AWS
Experience with Kubernetes / Docker
Experience with CI/CD tools (GitHub Actions / GitLab CI / Jenkins)
Knowledge of Event-driven architecture / Kafka / RabbitMQ
Experience with Observability tools (Datadog, Prometheus, Grafana, etc.)
Experience with OpenAI / Claude / Gemini / LangChain / RAG
Good understanding of system design and scalable architecture
Experience working in Agile / Scrum teams

Good to Have (Preferred):

Experience with Terraform or Infrastructure as Code
Experience with n8n / workflow automation tools
Exposure to Agentic AI / LLM / Prompt Engineering
Experience in Cloud / Distributed systems

Soft Skills:

Strong problem-solving skills
Ability to work independently
Good communication skills
Ownership mindset
Willingness to learn new technologies

WHY JOIN US:

Opportunity to grow into a technical leadership role.
Work with international teams on meaningful, high-impact projects.
Strong focus on learning and development.
Competitive compensation, bonuses, and employee-friendly policies.
Supportive team culture focused on innovation and technical excellence.

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.

How we score this

Technical Lead - Java Backend at Thales scores 23 out of 100 on AI centrality, which makes it AI Level 1 of 4 (Little AI) on this board. The level measures how much of the work is AI, not seniority.

Classification

AI Level 1. The work itself involves no AI, or AI only appears as scenery, such as a company tagline.

AI Level 480 to 100
AI Level 360 to 79
AI Level 240 to 59
AI Level 10 to 39

Bands come from how often the tools, models and workflows of the role are named in the posting itself. Open the description and count.

Prepare for this job

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Skills and AI tools this role asks for

Prompt EngineeringRagOpenAIClaudeGeminiLangChainN8n

Questions you could be asked

How do you structure and test a prompt to get consistent output from a language model?
How would you design a retrieval step so the model answers from real data instead of guessing?
What are the limits of OpenAI that you've run into, and how did you work around them?
What's a project where you used Claude hands-on?
Walk me through how you've used Gemini in your day-to-day work.

Adapt your resume

List these exact terms on your resume: Prompt Engineering, Rag, OpenAI, Claude, and Gemini. An applicant tracking system matches the wording, not the idea.
Attach one line of real, concrete experience to at least one of them — a tool named with nothing behind it rarely survives a human read.

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