Software Engineer, Full Stack (ReactJs/PHP/Hack) (contract role)

OPTIMUM SOLUTIONS (SINGAPORE) PTE LTD; Singapore; On-site; SGD 70,000 - 110,000; Full time

Job summary

OPTIMUM SOLUTIONS (SINGAPORE) PTE LTD is seeking a Software Engineer (Full Stack) to join its Business Support Engineering team in Singapore. The role focuses on resolving complex technical issues, enhancing product features, and building tools for global telecom and mobile operator partners.

This is a contract ending in August 2027. You will design, develop and maintain front-end interfaces, backend systems, APIs and data pipelines, collaborating with regional teams in Singapore, the US and

Qualifications

• 3-5 years of software engineering experience, including full-stack development.
• Proficiency in JavaScript and ReactJS; experience building modern web UIs.
• Experience with PHP/Hack and GraphQL for backend/API work.
• Foundational SQL knowledge; experience with databases and data handling.
• Experience through the SDLC: design, develop, test, debug, deploy.
• Strong problem-solving and analytical skills; able to troubleshoot complex issues.
• Experience collaborating with cross-functional teams and communicating technical concepts.
• Familiarity with Python, Spark, data pipelines or large-scale data processing; familiarity with Angular/Vue.js.

Responsibilities

• Provide Level 3 technical support by troubleshooting and resolving complex issues.
• Develop and implement full-stack enhancements, bug fixes and product improvements.
• Collaborate with Technical Leads, PMs, Designers and cross-functional teams to define requirements.
• Design, develop and maintain front-end interfaces, backend systems and APIs.
• Build and enhance user interfaces using ReactJS and Bloks or similar frameworks.
• Develop and maintain middle-tier APIs to integrate back-end systems with front-ends.
• Work with data pipelines and dashboards to support product analytics.
• Prepare technical design proposals ensuring scalable, maintainable solutions.
• Develop automated tools to improve operational efficiency and reduce issues.
• Participate in rotations and collaborate with regional teams across locations.

Skills

JavaScript

ReactJS

PHP/Hack

GraphQL

SQL

Python

Spark

Data pipelines

APIs

Troubleshooting

Job description

Our client is a globally recognised technology company looking for a Software Engineer (Full Stack) to join its Business Support Engineering team in Singapore.

The role will support global telecom and mobile operator partners by resolving complex technical issues, enhancing existing product features, and developing tools and platform improvements.

This is a contract ending in August 2027.

Responsibilities

• Provide Level 3 (L3) technical support by troubleshooting, investigating and resolving complex technical issues, bugs and partner-related queries.
• Develop and implement full-stack enhancements, bug fixes and product improvements to address specific partner requirements.
• Collaborate with Technical Leads, Product Managers, Designers and cross-functional engineering teams to define technical requirements and deliver solutions.
• Design, develop and maintain front-end interfaces, backend systems and APIs using technologies such as ReactJS, JavaScript, Hack (PHP) and GraphQL.
• Build and enhance user interfaces using ReactJS and Meta's server-driven UI framework, Bloks.
• Develop and maintain middle-tier APIs to integrate backend systems with complex front-end applications.
• Work with SQL and Spark to build data pipelines, aggregate data and develop dashboards to support product analytics.
• Prepare and communicate technical design proposals, ensuring solutions are scalable, maintainable and aligned with engineering standards.
• Develop automated tools and solutions to improve operational efficiency, streamline support processes and reduce recurring technical issues.
• Participate in project rotations and collaborate with regional engineering teams across Singapore, the US and Ireland.

Requirements

• 3-5 years of software engineering experience, with hands-on experience in full-stack development.
• Strong proficiency in JavaScript and ReactJS, with experience developing modern web applications and user interfaces.
• Practical experience with PHP/Hack and GraphQL, particularly in backend development and API integration.
• Foundational knowledge of SQL and experience working with databases and data handling.
• Experience across the software development lifecycle, including technical design, development, testing, debugging and deployment.
• Strong problem-solving and analytical skills, with the ability to troubleshoot complex technical issues and deliver effective solutions.
• Experience working collaboratively with cross-functional teams and communicating technical concepts effectively.
• Ability to manage multiple priorities and deliver solutions within agreed timelines
• Experience with Python, Spark, data pipelines or large-scale data processing.
• Familiarity with other modern JavaScript frameworks such as Angular or Vue.js.