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Full-time
Posted 11h ago
Apply by Jun 28
~40 hrs/week
Responsibilities
Design, build, and operate end-to-end product features across the full stack, including front-end interfaces and back-end microservices. Collaborate with cross-functional teams to deliver scalable, high-performance services and maintain production reliability.
Requirements
Requires 5-8 years of professional software engineering experience with strong proficiency in Java, Spring Boot, and a modern front-end framework like React. Must have hands-on experience with relational databases, AWS cloud services, and automated testing pipelines.
Full 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.
Booking Holdings (NASDAQ: BKNG) is the world leader in online travel and services that support the entire travel journey. Our platforms - including Booking.com, Priceline, Agoda, KAYAK and OpenTable - utilize advanced AI, machine learning and other innovative technologies to simplify and personalize the travel experience.
Booking Holdings’ portfolio of brands serves a broad range of customers, including leisure and business travelers, as well as travel and hospitality partners such as hotels, airlines, car rental providers, activities, and restaurants. Our platforms connect global travel demand with local supply, supporting millions of bookings every week in over 220 countries and territories.
Each brand within the Booking Holdings portfolio serves a distinct role in the travel ecosystem:
• 𝐁𝐨𝐨𝐤𝐢𝐧𝐠.𝐜𝐨𝐦 – a global leader in online travel, continuously investing in the technology that helps take the friction out of travel to connect millions of travelers with memorable experiences every day
• 𝐏𝐫𝐢𝐜𝐞𝐥𝐢𝐧𝐞 – leading online travel platform delivering savings on millions of hotels, flights, alternative accommodations, rental cars, vacation packages, activities, and cruises for over 25 years
• 𝐀𝐠𝐨𝐝𝐚 – global digital travel provider of accommodations, flights, ground transportation, and activities based in the heart of Asia
• 𝐊𝐀𝐘𝐀𝐊 – travel search engine processing billions of searches, partnering with hundreds of global travel brands, and earning the trust of millions of leisure and business travelers worldwide
• 𝐎𝐩𝐞𝐧𝐓𝐚𝐛𝐥𝐞 – leader in restaurant technology, connecting restaurants and diners, and helping diners discover and book the perfect table
Our advanced technology platforms integrate search, pricing, availability, payments, and customer support to simplify travel planning and booking. Our mission is to make it easier for everyone to experience the world.
Offices: 800 Connecticut Avenue, Norwalk, CT 06854, US · 70 Sir John Rogerson's Quay, Dublin, County Dublin, IE · Calea Șerban Voda 206-218, Sectorul 4, Bucharest, 040215, RO · 31 RMZ Ecoworld Road, Adarsh Palm Retreat, Bengaluru, 560013, IN
TravelEcommerceInternet Financial ServicesPaymentsTechnologyArtificial IntelligenceOnline Travel AgenciesTravel and hospitality technologyTravel payments and fintech
Booking Holdings (NASDAQ: BKNG) is the world leader in online travel and services that support the entire travel journey. Our platforms - including Booking.com, Priceline, Agoda, KAYAK and OpenTable - utilize advanced AI, machine learning and other innovative technologies to simplify and personalize the travel experience.
Booking Holdings’ portfolio of brands serves a broad range of customers, including leisure and business travelers, as well as travel and hospitality partners such as hotels, airlines, car rental providers, activities, and restaurants. Our platforms connect global travel demand with local supply, supporting millions of bookings every week in over 220 countries and territories.
Each brand within the Booking Holdings portfolio serves a distinct role in the travel ecosystem:
• 𝐁𝐨𝐨𝐤𝐢𝐧𝐠.𝐜𝐨𝐦 – a global leader in online travel, continuously investing in the technology that helps take the friction out of travel to connect millions of travelers with memorable experiences every day
• 𝐏𝐫𝐢𝐜𝐞𝐥𝐢𝐧𝐞 – leading online travel platform delivering savings on millions of hotels, flights, alternative accommodations, rental cars, vacation packages, activities, and cruises for over 25 years
• 𝐀𝐠𝐨𝐝𝐚 – global digital travel provider of accommodations, flights, ground transportation, and activities based in the heart of Asia
• 𝐊𝐀𝐘𝐀𝐊 – travel search engine processing billions of searches, partnering with hundreds of global travel brands, and earning the trust of millions of leisure and business travelers worldwide
• 𝐎𝐩𝐞𝐧𝐓𝐚𝐛𝐥𝐞 – leader in restaurant technology, connecting restaurants and diners, and helping diners discover and book the perfect table
Our advanced technology platforms integrate search, pricing, availability, payments, and customer support to simplify travel planning and booking. Our mission is to make it easier for everyone to experience the world.
Offices: 800 Connecticut Avenue, Norwalk, CT 06854, US · 70 Sir John Rogerson's Quay, Dublin, County Dublin, IE · Calea Șerban Voda 206-218, Sectorul 4, Bucharest, 040215, RO · 31 RMZ Ecoworld Road, Adarsh Palm Retreat, Bengaluru, 560013, IN
TravelEcommerceInternet Financial ServicesPaymentsTechnologyArtificial IntelligenceOnline Travel AgenciesTravel and hospitality technologyTravel payments and fintech