Fullstack Developer (Java Springboot Reactjs) for Banking Industry

PT. SIGMA GLOBAL TEKNOLOGI (SIGMATECH); Jakarta Utara; On-site; IDR 279,000,000 - 468,720,000; Part time

Benefits offered by this job

Medical

BPJS

Annual & Sick Leaves

Flexible working

Job summary

PT. SIGMA GLOBAL TEKNOLOGI (SIGMATECH) is seeking a skilled Fullstack Developer (Java Springboot, ReactJS) for the Banking Industry to join our development team in South Jakarta. You will build and maintain robust applications that support secure banking operations.

The role requires 3-5 years of experience, strong Java and Spring Boot skills, ReactJS frontend, RESTful APIs, and familiarity with databases, cloud platforms, Docker, and CI/CD. Contract position with potential extension.

Qualifications

• 3–5 years of professional software development
• Strong experience in Java and Spring Boot for backend
• Experience with banking systems, financial apps or regulated environments
• Relational and non-relational databases (PostgreSQL, MySQL, MongoDB)
• RESTful API design and microservices architecture
• Git and collaborative workflows
• Cloud platforms (AWS/Azure/Google Cloud) and Docker
• Security best practices: authentication, authorization, data encryption

Responsibilities

• Develop, maintain and enhance full-stack applications with Java Springboot and ReactJS
• Design RESTful APIs and microservices for banking operations
• Create responsive frontends with ReactJS emphasizing performance and accessibility
• Collaborate with product managers and other developers to implement requirements
• Conduct code reviews and ensure code quality and best practices
• Troubleshoot and resolve issues in production and development environments
• Contribute to system architecture discussions and technical decisions
• Ensure compliance with banking security regulations and data protection
• Document code and technical designs for knowledge sharing
• Optimize performance and scalability for high transaction volumes

Skills

Java

Spring Boot

ReactJS

RESTful APIs

Microservices

Databases

Git

Cloud platforms

Docker

Security

Tools

AWS

Azure

Google Cloud

Job description

Fullstack Developer (Java Springboot Reactjs) for Banking Industry

About the role

PT. SIGMA GLOBAL TEKNOLOGI (SIGMATECH) is seeking a Fullstack Developer (Java Springboot Reactjs) for Banking Industry to join our talented development team. This is a contract position based in South Jakarta, Jakarta. In this role, you will be responsible for developing and maintaining robust, scalable applications that serve the banking sector, utilising Java Springboot for backend architecture and ReactJS for frontend interfaces. You will play a crucial role in building secure, efficient financial solutions that meet the rigorous demands of the banking industry. This position offers the opportunity to work on high-impact projects whilst contributing to the technological advancement of the financial services sector.

What you'll be doing

• Develop, maintain and enhance full-stack applications using Java Springboot and ReactJS, ensuring code quality and adherence to industry standards
• Design and implement RESTful APIs and microservices using Java Springboot that support complex banking operations and transactions
• Create responsive, user-friendly frontend interfaces using ReactJS with a focus on performance optimisation and accessibility
• Collaborate with product managers, business analysts and other developers to understand requirements and translate them into technical solutions
• Conduct code reviews and provide constructive feedback to maintain high standards of code quality and best practices
• Troubleshoot, debug and resolve technical issues in production and development environments with minimal downtime
• Participate in system architecture discussions and contribute to technical decision-making processes
• Ensure compliance with banking security regulations, data protection standards and industry best practices
• Document code, technical designs and implementation details for future reference and team knowledge sharing
• Optimise application performance and scalability to handle high transaction volumes typical of banking systems

What we're looking for

• Proven experience as a Fullstack Developer with a minimum of 3-5 years in professional software development
• Strong proficiency in Java and Java Springboot framework, including experience building scalable backend services
• Demonstrated experience working with banking systems, financial applications or regulated environments
• Knowledge of relational and non-relational databases (e.g. PostgreSQL, MySQL, MongoDB)
• Understanding of RESTful API design principles and microservices architecture
• Familiarity with version control systems such as Git and collaborative development workflows
• Experience with cloud platforms (AWS, Azure, or Google Cloud) and containerisation technologies like Docker
• Understanding of security best practices, including authentication, authorisation and data encryption
• Excellent problem-solving skills and the ability to work independently as well as in collaborative team environments
• Strong communication skills and the ability to articulate technical concepts to both technical and non-technical stakeholders
• Preferred: Experience with CI/CD pipelines, agile development methodologies and automated testing frameworks
• Preferred: Knowledge of banking compliance regulations such as PCI-DSS, ISO 20022 or local banking standards

What we offer

• Contract position with potential for extension based on performance and project needs
• Competitive compensation package commensurate with experience and qualifications
• Opportunity to work on cutting-edge banking technology solutions with industry-leading tools and frameworks
• Collaborative work environment with experienced professionals who are passionate about technology
• Access to professional development resources and opportunities to enhance technical skills
• Flexible working arrangements and a supportive workplace culture
• Exposure to complex, high-impact projects that directly influence the financial services sector

About us

PT. SIGMA GLOBAL TEKNOLOGI (SIGMATECH) is a forward-thinking technology company specialising in delivering innovative software solutions to the banking and financial services sector. With a commitment to excellence, security and innovation, SIGMATECH works alongside leading financial institutions to develop robust, scalable applications that meet the complex demands of modern banking. Our team comprises experienced software engineers, architects and technical specialists dedicated to creating solutions that drive digital transformation within the financial industry. We pride ourselves on fostering a collaborative culture where technical excellence is valued and professional growth is encouraged.

Perks and benefits

Medical Miscellaneous allowance Attractive Salary, THR, BPJS, Annual & Sick Leaves