Java Backend Engineer - Spring Boot, Rest/Graphql

Arbeit Infotech; Jawa Barat; On-site; IDR 700,000,000 - 1,100,000,000; Full time

Benefits offered by this job

Health insurance

Competitive salary & bonuses

Paid time off

Job summary

Arbeit Infotech in Depok, West Java, seeks a Senior Backend Engineer with expertise in Java and the Spring framework to join our engineering team and deliver scalable fintech back-end solutions. You will design core features, work with frontend, product, and QA to push the platform forward in a fast-paced environment.

The role is on-site in Depok. A strong Java track record with Spring, Hibernate, REST microservices, and experience with relational and NoSQL databases is essential for success.

Qualifications

• Bachelor’s degree or equivalent practical experience.
• 5+ years in backend software development with Java.
• Strong Java ecosystem: Spring Boot, Spring MVC, Hibernate/JPA.
• Experience designing RESTful APIs and microservices.
• Experience with PostgreSQL/MySQL and NoSQL (MongoDB/Cassandra).
• Familiar with Kafka, RabbitMQ, Redis; Git and CI/CD.

Responsibilities

• Design, develop, and maintain robust back-end services and APIs in Java.
• Collaborate with cross-functional teams to define new features.
• Write clean, well-documented, testable code and participate in code reviews.
• Troubleshoot and resolve issues in production and development.
• Contribute to architecture discussions and best practices.
• Optimize performance, scalability, and security.
• Mentor junior backend engineers and promote learning.

Skills

Backend development

5+ years experience

Problem solving

Communication

Education

Bachelor’s degree in Computer Science, Engineering, or related field

Tools

Java

Spring Framework (Spring Boot, Spring MVC)

Hibernate/JPA

RESTful APIs

Microservices

PostgreSQL/MySQL

MongoDB/Cassandra

Kafka/RabbitMQ

Redis

Git

CI/CD

Job description

About the Role

Our client, a fast‑growing financial technology company operating in Depok, West Java, is looking for a highly skilled Senior Backend Engineer with expertise in Java and the Spring framework to join their established engineering team. This on‑site role requires a dedicated professional passionate about building scalable, reliable, and performant back‑end systems. You will design and develop core features for our financial platforms, work closely with front‑end developers, product managers, and other stakeholders, and contribute to shaping the future of fintech innovation within a collaborative and fast‑paced environment.

Key Responsibilities

• Design, develop, and maintain robust, scalable, and high‑performance back‑end services and APIs using Java.
• Collaborate with cross‑functional teams, including front‑end developers, product managers, and QA engineers, to define and implement new features.
• Write clean, efficient, well‑documented, and testable code, adhering to industry best practices.
• Participate actively in code reviews, providing constructive feedback to peers and junior engineers.
• Troubleshoot, debug, and resolve complex technical issues in production and development environments.
• Contribute to architectural discussions and decisions, driving technical innovation and best practices.
• Optimize application performance, scalability, and security.
• Mentor junior backend engineers and foster a culture of continuous learning and improvement.
• Ensure successful integration of back‑end services with third‑party systems and databases.

Requirements

• Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
• 5+ years of professional experience in backend software development, with a strong focus on Java.
• Expertise in the Java ecosystem, including Spring Framework (Spring Boot, Spring MVC), Hibernate/JPA.
• Proficiency in designing and developing RESTful APIs and microservices.
• Experience with relational databases (e.g., PostgreSQL, MySQL) and NoSQL databases (e.g., MongoDB, Cassandra).
• Familiarity with messaging queues (e.g., Kafka, RabbitMQ) and caching mechanisms (e.g., Redis).
• Experience with version control systems (Git) and CI/CD pipelines.
• Strong understanding of object‑oriented programming principles, design patterns, and data structures.
• Excellent problem‑solving, analytical, and communication skills.

Benefits

• Competitive salary and attractive bonus structure.
• Comprehensive health, dental, and vision insurance.
• Generous paid time off and holidays.
• Opportunities for professional development, training, and attending conferences.
• Collaborative and supportive team environment.
• Modern office facilities in a convenient Depok location.
• Clear career progression path within a growing organization.