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Full Stack Software Engineer

Rapsys Technologies Pte. Ltd

Singapore, SGonsite$44k-$131k/yrPosted Jun 2, 2026

Skills

typescriptnodeopenaiazurecicdgooglecloudawsllmjavascript

About the role

The Government Digital Products (GDP) Team spearheads the digital transformation of

government. We design and build large-scale digital platforms that enable agencies to better

serve the people of Singapore.

We are looking for a Full-Stack Software Engineer to drive the development of a Whole-of-

Government Chat platform, incorporating modern search architectures and Generative AI

capabilities.

You will lead by example, guide architectural decisions, mentor engineers, and champion strong

engineering practices while responsibly introducing emerging technologies such as GenAI into

production systems.

What to Expect

● Provide technical leadership to an agile, cross-functional development team

● Define and communicate technical vision across multiple workstreams

● Design scalable, secure, and resilient architectures for search and AI-powered systems

● Make architectural trade-offs balancing performance, cost, reliability, and security

● Collaborate with other Tech Leads to plan technical spikes and long-term technical

strategy beyond sprint scope

● Identify technical risks early and lead mitigation strategies

● Architect systems leveraging:

○ LLM integrations (e.g., Azure OpenAI, OpenAI APIs, etc.)

○ Retrieval-Augmented Generation (RAG)

○ Semantic search and vector databases

● Establish guardrails for AI systems including:

○ Evaluation frameworks

○ Observability and monitoring

○ Data governance and security considerations

● Guide the team from experimentation → prototype → production-ready AI systems

● Evaluate emerging AI technologies and assess suitability for public sector use cases

● Champion Agile technical practices (TDD, pair programming, refactoring, CI/CD)

● Lead DevOps adoption including build, release automation, and infrastructure

improvements

● Oversee automated testing strategy (unit, integration, performance)

● Lead resolution of technical blockers and retrospective improvements

● Ensure engineering standards are upheld across the team

● Work closely with Product Owners and Business Analysts to prioritise business stories

and technical investments

● Collaborate with UX Designers for feasibility studies and solution estimation

● Partner with Delivery Managers on long-term planning, system integrations, and

resource forecasting

● Represent the development team in governance and stakeholder meetings

● Mentor and coach engineers to grow both technically and professionally

How to Succeed

● 5–7+ years of experience in web application development

● Proven experience leading agile development teams

● Strong hands-on experience with:

○ Node.js, TypeScript

○ Cloud platforms (Azure, AWS, GCP)

○ SQL & NoSQL databases

○ CI/CD pipelines

○ DevOps practices

● Designed or led systems involving:

○ Search engines (crawl, index, ranking, relevance tuning)

○ Semantic search or vector search

○ RAG architectures

● Production experience integrating LLMs into applications

● Experience managing AI-related trade-offs:

○ Latency vs cost

○ Accuracy vs hallucination risks

○ Prompt engineering strategies

○ Model evaluation methodologies

● Understanding of AI system governance, security, and responsible AI practices

● Strong coaching and mentoring capabilities

● Comfortable leading technical discussions and influencing stakeholders

● Proactive self-starter with strong ownership mindset

● Passionate about continuous improvement

● Curious about emerging technologies and willing to experiment responsibly

● Strong communication and stakeholder management skills

● Meticulous attention to quality and engineering standards

Pay: $3,634.82 - $10,886.41 per month

Work Location: In person

Compensation

This Full-Stack Engineer role pays $44k-$131k/yr. Within typical range for full-stack engineer roles in Singapore.

Questions about this role

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