20+ years building software and the teams behind it.
With over two decades in software engineering, I have progressed from mobile development to CTO and Head of Engineering roles across Singapore and Southeast Asia. I currently lead engineering at GovTech Singapore, building digital public infrastructure that serves millions of citizens, and serve as Head of Technology at the National Environment Agency.
My career spans individual contributor work, technical leadership, people management, and startup co-founding. I am passionate about developing engineers into leaders and actively mentor engineering managers globally.
Building digital public infrastructure for millions of Singaporeans.
Adopted Amazon Nova (Gen AI/LLM) for transport tech operations.
Led Product, Design & Engineering for an EdTech startup.
Built infrastructure for Jewel @ Changi Airport.
↗ AWS Startups Blog
iOS, Android, Apple TV, Roku, Chromecast — featured at Google I/O & WWDC.
Engineered mobile and digital products at one of Southeast Asia's largest telcos.
Built VoIP and social communications products at an early Singapore startup.
Developed airline reservation and ticketing systems used by carriers across the Asia-Pacific.
The world's leading streaming platform for award-winning Asian entertainment — K-dramas, anime, and more — subtitled in 150+ languages by a global fan community.
SMRT's commuter super app — MRT maps, real-time bus arrival timings, islandwide food deals, and a loyalty rewards system where every tap at the gantry earns redeemable points.
Singtel's flagship self-care app — real-time data usage, bill management, roaming, and account services for millions of Singapore subscribers.
Reservation and ticketing systems powering the world's leading low-cost carriers. Navitaire's New Skies platform handles end-to-end travel commerce for 60+ airlines across 4 continents.
Real-time Singapore weather radar, temperature gradient, and wind flow visualisation. Built with React + Leaflet.
Always building something new. Check back later.
“I had the privilege of working with Julius on AWS technologies for SMRT. In my interactions with Julius, he has demonstrated his strong technical skills, business acumen and leadership. Julius is also a keen innovator whom is always on the lookout for the latest technologies and receptive to creative ideas that can improve the user experience of the Wink+ application. One of these ideas has even resulted in his team being one of the first few adopters of Amazon Nova (Generative AI, LLM). It has been a pleasure working with Julius and I do hope that I have the chance to collaborate with him in the future.”
“Despite holding the mighty title of Head of Technology, he never acted like a ‘big boss.’ Instead, he’s the kind of leader who feels more like a supportive teammate… or your friendly neighborhood uncle (the cool and wise kind who gives great career advice over kopi). Affectionately known on the team as ‘Mr. Sunshine,’ Julius has a magical way of lifting everyone’s mood just by walking into the room. As a junior developer when I first joined, Julius played a huge part in shaping my career. He patiently shared his industry experience, taught me best practices, and always made time to guide me—without ever making it feel like a top-down lecture.”
“When I first saw Julius at work, I immediately understood what the ideal CTO should be, and where the gaps have been for every other engineering leader I’d met previously. Julius is a walking masterclass in how servant leadership, when effectively combined with deep experience, raw intellect, and a knack for mentorship in a single person, can transform entire teams and companies. What I personally appreciate most about Julius is that there is a thoughtful candor to his words. If something isn’t quite working well or making sense, I can trust him to find time to collaborate on driving a solution; conversely, if my logic is missing a critical perspective, I can trust him to be honest and help me see things in a more complete way.”
“One of the most visionary technical leaders I’ve had the privilege to work with. His ability to balance strategic thinking with deep technical expertise has been instrumental in our company’s success. Under his leadership, our engineering organization has consistently delivered innovative solutions while maintaining exceptional quality standards. What truly sets Julius apart is his talent for cultivating engineering excellence. Julius excels at translating complex business challenges into clear technical roadmaps and has an exceptional ability to communicate technical concepts to diverse stakeholders.”
“I feel extremely fortunate to have had the opportunity to work under Julius’s guidance. He has been instrumental in my professional development, providing an unwavering commitment to excellence, vast knowledge, and expertise that has been truly inspiring. One of his standout qualities is his talent for creating a positive and inclusive workplace where all team members feel appreciated and respected. I have never trusted someone at work as much as I trust him. Through his mentorship and encouragement, I have been able to take on new challenges and exceed my own expectations.”
“Working with Julius in ZilLearn has been an eye-opening and life-changing experience. He is an inspiring and understanding leader who often looks out for me and advises me whenever I need it. Julius has a vast knowledge across all domains and technical expertise that feels like a walking Google (or OpenAI). I find myself always walking away with new knowledge after every session with him. He is very strategic and is definitely one of the people with the best stakeholder management skills I have ever seen. There isn’t anyone that I know without an immense respect for him.”
“Julius belongs in the top 1% of Engineering Manager / Leaders. He has the complete balance between IQ and EQ, and uses that to excel in bringing value AND purpose to the company and everyone in it. While working with Julius, he made sure that my work was challenging, there was a purpose and future in my career and most especially cared that I was being acknowledged for my work. He does not use empty and pointless words as he spends a lot of time reading books and research papers to validate his point. There’s always something to learn from him. Out of all the people I’d like to work with again Julius is definitely number 1 on the list.”
“Julius is a rare professional who combines strong technical expertise with a deep understanding of product strategy and execution. He consistently leads with a calm and positive demeanor, even under pressure, and always prioritizes the well-being of the team. He has a natural ability to grasp complex concepts quickly and distill them into clear, actionable insights. He empowers his team by giving them the freedom to explore and experiment with new technologies, fostering innovation and continuous growth. Working with Julius is both inspiring and rewarding.”
Academic papers from my MA in Christian Apologetics at Biola University (GPA 3.99/4.0).