Principal Software Engineer

Y3 TECHNOLOGIES PTE LTD; Singapore; On-site; SGD 150,000 - 190,000; Full time

Job summary

Y3 TECHNOLOGIES PTE LTD in Singapore is seeking a senior software engineer with 10–13 years of hands-on experience to help build scalable, enterprise-grade applications. You will lead development efforts, design technical specifications, and mentor a team of developers to deliver robust solutions using Java, Spring, Hibernate, REST services, and modern front-end tech.

You will architect systems based on user needs, participate in design reviews, testing, and documentation, coordinate releases,

Qualifications

• Bachelor's degree in computer science, information technology, or related field.
• 10–13 years hands-on software development experience in enterprise environments.
• Strong proficiency in Java and OOP principles.
• Experience with Spring, Hibernate, and MVC web frameworks.
• Familiarity with Spring Boot, RESTful services, and Drools is a plus.
• Proficient in VueJS/ReactJS, jQuery and Bootstrap.
• Working knowledge of HTML5 and relational databases (EDB Postgres).
• Demonstrated ability to lead and mentor technical teams.
• Excellent problem-solving, analytical, and debugging skills.
• Strong verbal and written communication skills.

Responsibilities

• Contribute to development of high-quality, scalable software as part of a dynamic team.
• Design and draft comprehensive technical specifications for software tasks.
• Provide technical leadership and guidance to developers to meet project objectives.
• Write clean, maintainable code aligned with specifications.
• Conduct unit testing to ensure quality, performance, reliability.
• Troubleshoot and resolve development issues.
• Support software and product implementation as needed.
• Participate in system integration testing to ensure seamless performance.
• Maintain detailed documentation for projects and processes.
• Collaborate cross-functionally to enhance software products.
• Coordinate release planning and deployment with stakeholders.
• Architect systems based on user requirements for scalability and performance.
• Translate business requirements into robust functional and technical specs.
• Lead or contribute to design validation, debugging, testing.
• Conduct peer reviews of designs and code to adhere to best practices.
• Manage data and application migration activities where applicable.
• Support pre-sales with technical input and solution design.
• Take on additional responsibilities as required by project demands.

Skills

Technical leadership

Mentoring

Problem solving

Communication skills

Multi-priority management

Self-motivated

Education

Bachelor's degree in CS/IT or related field

Tools

Spring

Hibernate

MVC frameworks

Spring Boot

RESTful services

Drools

VueJS

ReactJS

jQuery

Bootstrap

HTML5

EDB Postgres

Git

SVN

Job description

Primary Responsibilities

• Contribute to the development of high-quality, scalable software as part of a dynamic and innovative team.
• Design and draft comprehensive technical specifications for software development tasks.
• Provide technical leadership and guidance to a team of developers to meet project objectives.
• Write clean, efficient, and maintainable code in alignment with defined specifications.
• Conduct unit testing to ensure software quality, performance, and reliability.
• Troubleshoot and resolve technical issues encountered during development.
• Support software and product implementation as needed.
• Participate in system integration testing to ensure seamless performance across modules.
• Maintain detailed documentation for software projects and development processes.
• Collaborate cross-functionally with teams to continuously enhance software products and solutions.
• Coordinate release planning and deployment activities with relevant stakeholders.
• Architect systems based on user requirements, ensuring scalability and performance.
• Translate business and user requirements into robust functional and technical specifications.
• Lead or contribute to design validation, debugging, and testing efforts.
• Conduct peer reviews of designs and code to ensure adherence to best practices.
• Manage data and application migration activities where applicable.
• Support pre‑sales teams with technical input and solution design during proposal stages.
• Take on additional responsibilities as required by project demands.

Job Requirements:

• Bachelor's degree in computer science, Information Technology, ora related field.
• 10 to 13 years of hands‑on experience in software development, preferably in enterprise environments.
• Strong proficiency in Java and Object‑Oriented Programming principles.
• Experience with Spring, Hibernate, and web frameworks using MVC architecture.
• Familiarity with Spring Boot, RESTful services, and business rules engines like Drools is a plus.
• Skilled in front‑end technologies including VueJS, ReactJS, jQuery, and Bootstrap
• Working knowledge of front‑end technologies such as HTML5.
• Experience with relational databases, especially EDB Postgres, is desirable.
• Demonstrated ability to lead and mentor technical teams.
• Excellent problem‑solving, analytical, and debugging skills.
• Strong verbal and written communication skills.
• Self‑motivated with a passion for continuous learning andimprovement.
• Ability to manage multiple priorities in a fast‑paced environment and meet deadlines.
• Strong hands‑on experience with open‑source technologies.
• Proficient with version control tools like Git and SVN.
• Experience in solution architecture consulting and technical leadership.