Backend Software Engineer (Java)

CAPGEMINI SINGAPORE PTE. LTD.; Singapore; On-site; SGD 90,000 - 130,000; Full time

Benefits offered by this job

Flexible work practices

40 hours of self-development per year

Learning opportunities

Job summary

Capgemini Singapore is seeking an experienced backend Java Developer to design, build, and maintain robust enterprise-grade services. You will implement microservices with Spring, integrate Kafka-based event streams, and ensure secure, scalable APIs while collaborating with cross-functional teams in a fast-paced environment.

The role emphasizes production support, architecture influence, and adherence to regulatory and security standards within financial systems.

Qualifications

• Bachelor's degree in computer science, engineering, or a related field.
• 3–7 years of hands-on backend development experience with Java.
• Strong Java (JDK 17+), Spring Boot and Spring Cloud expertise.
• Solid microservices, RESTful API design knowledge.
• Experience with Kafka or similar messaging platforms.
• Multithreading, concurrency and performance tuning proficiency.
• Relational/NoSQL DB experience (PostgreSQL, MongoDB).
• Containerization with Docker/Kubernetes; CI/CD awareness.
• Security knowledge (OAuth2/JWT/encryption) and cloud familiarity.

Responsibilities

• Develop Java services integrated in end-to-end processing.
• Design and code robust, secure APIs to persist/retrieve data.
• Provide L3 production support and participate in code reviews.
• Offer technical leadership and influence architectural decisions.
• Collaborate with product, QA, and infrastructure teams.
• Ensure regulatory, security, and audit compliance for financial systems.
• Build enterprise-grade apps using Java 17+ and Spring ecosystem.
• Design microservices architecture and utilize Kafka for events.
• Implement multi-threading, concurrency handling, and performance optimizations.
• Adhere to SOLID, design patterns and secure coding practices.

Skills

Java

Spring Boot

Spring Cloud

REST API design

Multithreading

Performance tuning

SOLID principles

Design patterns

OAuth2/JWT/encryption security

Communication skills

Education

Bachelor's degree in computer science, engineering, or a related field

Tools

Kafka

Docker

Kubernetes

PostgreSQL

MongoDB

Job description

Work Description

Work with subject matter experts to develop solutions that meet business requirements. Develop java services integrated in the end-to-end processing. Design and code a significant amount of a robust, secure and efficient API to persist / retrieve data and implement the business logic. Responsible for all aspects of software development and production support (L3). Participation in code reviews and sharing of knowledge with other members of the team. Provide technical leadership and influence architectural decisions. Communicate effectively with cross-functional teams including product, QA, and infrastructure. Ensure compliance with regulatory, security, and audit requirements (especially relevant for financial systems). Develop and maintain enterprise-grade applications using Java (JDK 17+) and related frameworks. Design and implement microservices architecture using Spring ecosystem. Work with messaging systems such as Kafka for event-driven architectures. Implement multi-threading, concurrency handling, and performance optimization in Java applications. Ensure code quality using design patterns, SOLID principles, and clean coding practices. Implement security best practices including OAuth2, JWT, encryption, and secure coding standards.

Job Requirements

• Bachelor's degree in computer science, engineering, or a related field.
• At least 3 - 7 years of hands-on experience in backend development using Java.
• Strong proficiency in Java (JDK 17+), Spring Boot, and Spring Cloud.
• Solid understanding of microservices architecture and RESTful API design.
• Experience working with Kafka or similar messaging/event-streaming platforms.
• Strong knowledge of multithreading, concurrency, and performance tuning.
• Experience with relational and NoSQL databases (e.g., PostgreSQL, Oracle, MongoDB).
• Familiarity with containerization and orchestration tools (Docker, Kubernetes).
• Understanding of CI/CD pipelines and DevOps practices.
• Strong knowledge of software design principles, including SOLID and design patterns.
• Experience implementing application security standards (OAuth2, JWT, encryption).
• Familiarity with cloud platforms (AWS, Azure, or Google Cloud) is a plus.
• Strong problem-solving skills and ability to work in a fast-paced, agile environment.
• Excellent communication and collaboration skills.

Let's talk about what's in it for you!

Passionate people are Capgemini's Ace of Spades - join us to discover a career that will challenge, support and inspire you. Working at Capgemini you'll find the rewards are more than just financial. You will work alongside some very smart and inspiring people on exciting projects, and you will also enjoy incredible benefits. We offer flexible work practices and 40 hours of self-development every year with a huge selection of learning opportunities to choose from.

Capgemini actively supports the community in 3 ways:

• Diversity and Inclusion - we believe diversity of thought fuels excellence and innovation, which is why we positively encourage applications from suitably qualified candidates regardless of their gender identity, ethnicity, sexual orientation, religion, ability, intersex status or age. To support our commitment to diversity and inclusion, we celebrate special events and days of significance that are important to our employees such as Diwali, Bastille Day, Pride, IDAHOBIT, IWD and International day of people with Disabilities. Our Employee Resource Groups Women@Capgemini and OutFront support the grassroots passion of employees to drive our diversity agenda and effect change.
• Digital inclusion - at Capgemini we are using our skills to drive social impact initiatives focusing on helping society address the impact of the digital and automation revolution. We also provide employees with opportunities to give back to the community through charity projects and volunteer days.
• Environmental Sustainability - Capgemini joined the CDP's (Carbon Disclosure Project) prestigious "A list" for its commitment to the Net-Zero economy. We are focusing on helping our clients transform towards more sustainable business models and committing to reduce our own carbon emissions (GHG) by 20% per employee by 2020.

Recognised by Ethisphere as one of the World's Most Ethical Companies for the last 8 years in a row, ethics and values are at the heart of Capgemini's corporate culture and business. Embedded in our DNA, our seven values - Honesty, Boldness, Trust, Team Spirit, Freedom, Fun and Modesty - have remained the same since company inception in 1967.

Come join us, bring your whole self to work, create new possibilities for you, your customers and your community and help us to be Architects of Positive Futures.