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I’m a software engineer with a decade of experience building high-quality digital products ranging from AI-powered platforms and APIs to full-stack web applications. While my strengths lie in system architecture and backend engineering, I also care deeply about crafting secure, intuitive, and aesthetically refined user experiences. I approach every product with an end-to-end mindset — combining technical reliability, thoughtful design, and scalable architecture to deliver solutions built with long-term value in mind.…I’m a software engineer with a decade of experience building high-quality digital products ranging from AI-powered platforms and APIs to full-stack web applications. While my strengths lie in system architecture and backend engineering, I also care deeply about crafting secure, intuitive, and aesthetically refined user experiences. I approach every product with an end-to-end mindset — combining technical reliability, thoughtful design, and scalable architecture to deliver solutions built with long-term value in mind.

Davina Leong

Web Developer, Full Stack Developer, Data Scientist, +2

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I’m a software engineer with a decade of experience building high-quality digital products ranging from AI-powered platforms and APIs to full-stack web applications. While my strengths lie in system architecture and backend engineering, I also care deeply about crafting secure, intuitive, and aesthetically refined user experiences. I approach every product with an end-to-end mindset — combining technical reliability, thoughtful design, and scalable architecture to deliver solutions built with long-term value in mind.…I’m a software engineer with a decade of experience building high-quality digital products ranging from AI-powered platforms and APIs to full-stack web applications. While my strengths lie in system architecture and backend engineering, I also care deeply about crafting secure, intuitive, and aesthetically refined user experiences. I approach every product with an end-to-end mindset — combining technical reliability, thoughtful design, and scalable architecture to deliver solutions built with long-term value in mind.

Available to hire

I’m a software engineer with a decade of experience building high-quality digital products ranging from AI-powered platforms and APIs to full-stack web applications. While my strengths lie in system architecture and backend engineering, I also care deeply about crafting secure, intuitive, and aesthetically refined user experiences. I approach every product with an end-to-end mindset — combining technical reliability, thoughtful design, and scalable architecture to deliver solutions built with long-term value in mind.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Work Experience

Founder & CEO at GraceSoft

January 1, 2020 - Present

Founded and led GraceSoft, driving product strategy, technical architecture, and delivery across AI-powered business software including internal workflow systems and client-facing SaaS products.

AI Engineer at StarLIMS

July 1, 2025 - January 31, 2026

Spearheaded AI integration into STARLIMS workflows by designing and implementing a retrieval-augmented generation (RAG) pipeline, embedding GPT-based chatbots for PUB lab technicians, and prototyping an MCP (Model Context Protocol) architecture to connect AI hosts, clients, and servers with STARLIMS databases.

Business Data Analyst (with Distinction) at BCG Rise 2.0

February 1, 2025 - September 1, 2025

Graduated with Distinction, applying SCQ and Pyramid frameworks to solve business cases; designed 2 Power BI dashboards and 3 SQL scripts for data transformation and visualization; conducted peer tutoring in coding.

Cybersecurity Capstone Project at Vertical Institute

August 1, 2024 - September 30, 2024

Assessed a simulated bank, identifying high-risk vulnerabilities and proposing fixes, including HTTPS and AES encryption; created a password system using mnemonic models and outlined an incident response plan for 4 threat scenarios with PDPA/GDPR considerations.

Applied AI for Developers Workshop at Vertical Institute

July 1, 2024 - July 31, 2024

Used ChatGPT to fix 15+ bugs and generate 10+ reusable components, speeding up JS, PHP, and Laravel development by 30%; authored articles on AI-assisted coding with measurable engagement.

UX Design Capstone Project at Vertical Institute

May 1, 2024 - June 30, 2024

Led UX design for a FinTech app; interviews and usability tests reduced task time by 40%; constructed and tested 4 high-fidelity prototypes with 90% user satisfaction.

Associate Systems Engineer at Government Investment Corporation (GIC)

May 1, 2023 - December 1, 2023

Improved WordPress VIP workflows with multiple vendors; simplified SDLC for 4 departments, raising process understanding and tool adoption.

Web Developer at EPOS POS System Singapore

July 1, 2022 - January 31, 2023

Created SOPs to cut dev onboarding by 40% and speed up delivery by 25%; customized 15 WordPress sites with Elementor and JavaScript; deployed client’s payment system.

Web Developer at FirstCom Solutions

July 1, 2021 - June 30, 2022

Produced 22+ e-commerce sites using OpenCart and WooCommerce; managed deployment of 30+ sites with cron tasks; integrated payments into custom Wix checkout; mentored junior devs.

Web Developer at The Shipyard; The Pixel Age; LIV3LY Pte Ltd

November 1, 2015 - May 1, 2021

Implemented 6+ apps in Laravel, Node.js, ReactJS, CodeIgniter, and Angular; delivered social, mobility, and dating platforms; created 4 dashboards and APIs using MySQL, Elasticsearch, and CraftCMS; trained 6 developers and led 2 sprints as Scrum Master.