FullStack Engineer II - EVERGREEN

Booking Holdings Inc.; Bengaluru; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

Booking Holdings Inc. in Bengaluru seeks a Full Stack Software Engineer II to design, build, and operate end-to-end product features across the stack. You will work in a cross-functional team to ship customer-focused solutions, taking ownership from design to production, monitoring and iteration.

Proficiency in Java, Spring Boot, React, and cloud/CI/CD practices is valued. Role emphasizes constructing scalable services, APIs, and data access with a focus on reliability and performance, including

Qualifications

• 5–8 years of professional software engineering experience.
• Strong drive to build high quality systems and improve existing ones.
• Back-end language (Java, Spring Boot / Dropwizard) and one modern front-end framework (React).
• Experience building and consuming HTTP APIs / microservices.
• Solid understanding of data structures, algorithms, and OO design.
• Hands-on experience with relational databases (MySQL) and writing efficient SQL.
• Experience with automated testing (unit, integration).
• Experience using CI/CD tools and Git.
• Comfort working in agile, cross-functional teams and collaborating with non-engineering stakeholders.
• Strong communication skills with the ability to explain trade-offs and make pragmatic decisions.
• Ownership, learning and continuous improvement mindset.
• Experience with modern AI tooling to accelerate design, coding, testing and documentation while maintaining high engineering standards.
• Experience operating high-volume, low-latency services in production, including performance tuning, capacity planning and incident handling.
• Hands-on experience with AWS cloud services (EC2/EKS, S3, RDS).

Responsibilities

• Design & build end-to-end features across web front-ends and back-end services.
• Implement and evolve APIs and microservices (REST/GraphQL/event-driven) that are secure, scalable, and observable.
• Develop user interfaces using modern JavaScript/TypeScript, HTML/CSS and a component-based framework (React).
• Strong experience designing and implementing backend services in Java (or similar JVM languages), including APIs, business logic and integrations.
• Work with relational databases (MySQL) and caching solutions to model, store and retrieve data efficiently.
• Write high-quality, testable code with unit, integration and end-to-end tests as appropriate.
• Use CI/CD pipelines to ship changes frequently and safely.
• Monitor services in production (logs, metrics, traces, alerts) and participate in on-call / incident response where applicable.
• Collaborate closely with product, design and data to refine problems, define solutions and run experiments (A/B tests).
• Contribute to technical design discussions, code reviews, and knowledge sharing.
• Champion security, privacy, performance and reliability in your solutions.
• Mentor junior engineers informally and help raise the engineering bar in the team.

Skills

Java / Spring Boot

React

APIs / microservices

CI/CD

SQL / MySQL

Testing (unit/integration)

Git

Communication skills

Ownership / learning

Tools

Kubernetes

AWS

Kafka

AI tooling (e.g., Copilot)

Job description

As a Full Stack Software Engineer II, you will work end‑to‑end across front‑end and back‑end systems to ship features that directly impact our customers and partners.

Role Overview

You will:

• Design, build, and operate end‑to‑end product features across the stack (front‑end, back‑end, data & integration).

• Work in a cross‑functional team (product, design, data, other engineers) to solve real customer problems.

• Take ownership from design and implementation to production, monitoring and iteration.

• Contribute to engineering quality, reliability, and best practices within your team.

• Rapidly developing next-generation scalable, flexible, and high-performance services for the SS&F Department.

• Design, Develop and Maintain High Critical Services serving

Key Responsibilities

• Design & build end‑to‑end features across web front‑ends and back‑end services.

• Implement and evolve APIs and microservices (REST/GraphQL/event‑driven) that are secure, scalable, and observable.

• Develop user interfaces using modern JavaScript/TypeScript, HTML/CSS and a component‑based framework (e.g. React or equivalent).

• Strong experience designing and implementing backend services in Java (or similar JVM languages), including APIs, business logic and integrations.

• Work with relational databases (e.g. MySQL) and caching solutions to model, store and retrieve data efficiently.

• Write high‑quality, testable code with unit, integration and end‑to‑end tests as appropriate.

• Use CI/CD pipelines to ship changes frequently and safely.

• Monitor services in production (logs, metrics, traces, alerts) and participate in on‑call / incident response where applicable.

• Collaborate closely with product, design and data to refine problems, define solutions and run experiments (A/B tests).

• Contribute to technical design discussions, code reviews, and knowledge sharing.

• Champion security, privacy, performance and reliability in your solutions.

• Mentor junior engineers informally and help raise the engineering bar in the team.

Required Qualifications

• 5–8 years of professional software engineering experience, including production systems.

• Have a strong drive to build high quality systems and improve the quality of existing systems

• Strong skills in back‑end language (Java, Spring Boot / Dropwizard) and one modern front‑end framework (e.g. React).

• Experience building and consuming HTTP APIs / microservices.

• Solid understanding of data structures, algorithms, and object‑oriented design.

• Hands‑on experience with relational databases (MySQL or equivalent) and writing efficient SQL.

• Experience with automated testing (unit, integration; familiarity with test pyramids and quality gates).

• Experience using CI/CD tools and version control (Git).

• Comfort working in agile, cross‑functional teams and collaborating with non‑engineering stakeholders.

• Strong communication skills, with the ability to explain trade‑offs and make pragmatic decisions.

• Mindset of ownership, learning and continuous improvement.

• Experience using modern AI tooling (e.g. Claude, GitHub Copilot, Windsurf or similar) to accelerate design, coding, testing and documentation, while maintaining high engineering standards.

• Experience operating high‑volume, low‑latency services in production, including performance tuning, capacity planning and incident handling.

• Hands‑on experience with AWS cloud services (e.g. EC2/EKS, S3, RDS, networking and monitoring) for deploying and operating backend workloads.

Nice‑to‑Have

• Experience with high‑traffic, distributed systems and performance tuning.

• Exposure to Kubernetes / container orchestration and cloud environments (e.g. AWS).

• Experience with message queues / streaming (e.g. Kafka) and event‑driven architectures.

• Familiarity with A/B testing and experimentation platforms.

• Front‑end experience in design systems / component libraries and accessibility best practices.

• Previous experience in e‑commerce, travel, payments, or fraud/risk domains.

Pre-Employment Screening

If your application is successful, your personal data may be used for a pre‑employment screening check by a third party as permitted by applicable law. Depending on the vacancy and applicable law, a pre‑employment screening may include employment history, education and other information (such as media information) that may be necessary for determining your qualifications and suitability for the position.