Lead Architect, Delhi, India

Overview

WELCOME TO SITA

At SITA, we keep airports moving, airlines flying smoothly, and borders open. Our technology and communication innovations power the success of the global air travel industry.

You'll find us in 95% of international airports, working closely with over 2,500 transportation and government clients. Each partnership brings unique challenges, and we thrive on delivering fresh solutions and cutting-edge tech to keep operations running like clockwork. We don't just move the world forward—we're proud to be recognized as a Great Place to Work® by our employees and certified in most of our growing locations. Here, we feel empowered, supported, and inspired to grow.

Are you ready to love your job?

The adventure begins right here, with you, at SITA

ABOUT THE ROLE & TEAM

We are seeking an experienced Lead Architect with strong Java development foundations and proven solution design expertise to join our technology team. This role goes beyond high-level design - you will act as the Technical Owner for one or more mission-critical application built on Java, AWS, and MongoDB , while also shaping new solutions for future customer and business needs.

As a Lead Architect, you will combine hands-on technical depth with architectural leadership , ensuring that systems are scalable, secure, and aligned with modern cloud-native principles. You will work closely with engineering teams, product owners, and stakeholders, acting as the technical authority throughout the application lifecycle.

The world is changing. Are you ready to define the future of travel with us?

WHAT YOU' LL DO

• Own the end-to-end technical architecture of existing applications built on Java, AWS, and MongoDB

• Act as Technical Owner , responsible for architecture decisions, technical roadmap, and system health

• Design scalable, resilient, and cost-effective cloud-native solutions using AWS services

• Provide hands-on technical leadership, including design reviews, code reviews, and technical guidance

• Define and enforce architecture standards, design patterns, and best practices

• Collaborate with product, delivery, and business teams to translate requirements into technical solutions

• Identify and manage technical risks, performance bottlenecks, and architectural debt

• Support incident resolution, root-cause analysis, and continuous improvement initiatives

• Mentor engineers and promote strong engineering and DevOps practices

Qualifications

ABOUT YOUR SKILLS

• Strong background in Java development , with experience using Spring / Spring Boot

• Proven experience in solution architecture or application architecture roles

• Hands-on expertise with AWS cloud services , including compute, storage, networking, and security

• Solid experience working with MongoDB , including data modeling and performance considerations

• Deep understanding of microservices architecture , REST APIs, and distributed systems

• Experience with CI/CD pipelines , DevOps practices, and infrastructure-as-code concepts

• Ability to balance hands-on technical work with architectural leadership responsibilities

• Strong analytical, problem-solving, and communication skills

NICE-TO-HAVE

• Experience working in the aviation, travel, or transportation domain

• Exposure to containerization and orchestration (Docker, Kubernetes)

• Knowledge of event-driven architectures and messaging platforms

• Experience modernizing legacy systems to cloud-native architectures

• Prior experience in customer-facing or pre-sales technical roles