Xtremax

Develops digital applications with interactive design

Full Stack Engineer - AI, Public Sector

AI Application Engineering +1Posted on Nov 10

Full-timeSingaporeNo salary listedIn-person

About the Job

Requirements

Proven experience designing and building scalable, reliable, and maintainable software systems.
Strong proficiency in modern software development, including React.js, TypeScript, and Node.js, and a deep understanding of browser architecture.
Ability to build large language model workflows using retrieval-augmented generation, tool calling, structured outputs, agents, and human-in-the-loop patterns.
Ability to build evaluation pipelines using golden datasets, regression tests, deterministic evaluators, and large language model-as-a-judge methods.
Ability to implement observability, monitoring, guardrails, fallbacks, and validation for reliable AI systems.
Ability to balance model quality, latency, reliability, maintainability, and cost.
Ability to maintain automated tests, continuous integration and continuous delivery pipelines, and technical documentation.
Hands-on experience with quality engineering practices, including unit, integration, and end-to-end automated testing and test automation frameworks.
Solid grasp of continuous integration and continuous delivery, infrastructure concepts, and agile engineering practices.
Strong troubleshooting and debugging skills, including analyzing complex system behaviors and logs.
Excellent communication skills to explain technical trade-offs and quality standards to diverse stakeholders.

Responsibilities

Design, develop, and maintain high-quality features and services for government product teams, ensuring accessibility and performance.
Develop full-stack features across frontend, backend, APIs, data, and AI systems.
Design and build production-grade applied AI-powered applications and developer tools.
Use continuous integration and continuous delivery pipelines to ensure seamless, reliable, and high-quality deployments.
Develop and maintain technical documentation, including API specifications, troubleshooting guides, and system architecture diagrams.
Translate customer feedback and production issues into reusable product improvements.
Work alongside Product Management to provide Level 1 and Level 2 support to customers.
Work directly with government teams on discovery, demonstrations, proofs of concept, architecture discussions, onboarding, integrations, and troubleshooting.
Gain knowledge in debugging and remediating Web Content Accessibility Guidelines accessibility issues on production websites.

Desired Qualifications

Knowledge of Docker, infrastructure as code, and Bash scripting.
Passion for building inclusive technology and willingness to apply or develop expertise in Web Content Accessibility Guidelines 2.2 standards and assistive technologies.
Willingness to learn about digital accessibility, including regulations and Web Content Accessibility Guidelines 2.2 Level A and AA requirements, and to learn to use screen readers such as VoiceOver, NVDA, and TalkBack.
Experience writing code that meets accessibility standards such as the Web Content Accessibility Guidelines.
Candidates with more than seven years of relevant software engineering experience may be considered for senior positions.

Full Stack Engineer - AI (Public Sector)

Xtremax Pte. Ltd. · Singapore, Singapore · Contract · Posted 2026-11-10

Workplace: on_site

Department: Development

Description

We are looking for a hands-on Software Engineer with strong AI engineering capabilities who can build production AI systems and work directly with the teams using them. This role spans full-stack development, LLM applications, evaluation, observability, deployment, and customer-facing technical delivery. Accessibility experience is not required, but you should be willing to develop expertise in digital accessibility and WCAG standards.

Responsibility

Design, develop, and maintain high-quality features and services for government product teams, ensuring accessibility and performance.
Develop full-stack features across frontend, backend, APIs, data, and AI systems.
Design and build production-grade applied AI-powered applications and developer tools.
Utilise CI/CD pipelines to ensure seamless, reliable, and high-quality deployments.
Develop and maintain technical documentation, including API specs, troubleshooting guides, and system architecture diagrams.
Translate customer feedback and production issues into reusable product improvements.
Work alongside Product Management to provide L1/L2 support to customers we serve.
Work directly with government teams on discovery, demos, Proof-of-Concepts, architecture discussions, onboarding, integrations, and troubleshooting.
Gain knowledge debugging and remediating WCAG accessibility issues on production websites

Requirements

Proven experience in designing and building scalable, reliable, and maintainable software systems.
Strong proficiency in modern software development (e.g., React.js, TypeScript, Node.js) and a deep understanding of browser architecture.
Build LLM workflows using RAG, tool calling, structured outputs, agents, and human-in-the-loop patterns.
Build evaluation pipelines using golden datasets, regression tests, deterministic evaluators, and LLM-as-a-judge.
Implement observability, monitoring, guardrails, fallbacks, and validation for reliable AI systems.
Balance model quality, latency, reliability, maintainability, and cost.
Maintain automated tests, CI/CD pipelines, and technical documentation.
Hands-on experience with quality engineering practices, including automated testing (unit, integration, E2E) and test automation frameworks.
Solid grasp of CI/CD, infrastructure concepts, and agile engineering practices.
Strong troubleshooting and debugging skills, with an ability to analyze complex system behaviors and logs.
Excellent communication skills to explain technical trade-offs and quality standards to diverse stakeholders.

Nice to Haves

Docker, Infrastructure as a Code and Bash scripting knowledge
Passion for building inclusive technology and a willingness to apply or develop expertise in WCAG 2.2 standards and assistive technologies.
Willingness to learn knowledge of digital accessibility, including digital accessibility regulations & Web Content Accessibility Guidelines (WCAG) 2.2 Level A and AA requirements, learn how to use screen readers such as VoiceOver, NVDA and TalkBack.
Experience writing code that meets accessibility standards such as the Web Content Accessibility Guidelines (WCAG).
Candidates with more than 7 years of relevant experience in software engineering may be considered for senior positions.

Benefits

By submitting your resume/CV, you consent and agree to allow the information provided to be used and processed by or on behalf of Xtremax Pte Ltd for purposes related to your registration of interest in current or future employment with us and for the processing of your application for employment.

You also represent to us that you have obtained the consent of your referees when you disclose to us their personal data for the purpose of conducting reference checks.

The personal data held by us relating to your application will be kept strictly confidential and in accordance with the PDPA. You may also refer to our Privacy Policy for more details here:

We regret to inform you that should you not consent to providing the necessary data required for us to process your application, your application will be considered void.

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About the Company

Xtremax

Develops digital applications with interactive design

Xtremax is a digital solutions agency serving governments, large organizations, and educational institutions to design, build, and manage digital applications. Its team across Singapore, Bandung, and Kuala Lumpur uses user-centered design, strategic content planning, and modern technology to deliver end-to-end projects. The company differentiates itself with an award-winning track record, regional reach, and deep experience in public and educational sectors. Its goal is to help clients achieve measurable outcomes by delivering reliable digital platforms and engaging experiences that align with strategic objectives.

Company size: 201-500
Company stage: Not listed
Total funding: Not listed
Headquarters: Singapore, Singapore
Founded: 2003

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