Senior Software Engineer, ScamShield

Who We Are

Open Government Products (OGP) operates like a startup within the government; We are a fast-paced team of engineers, designers, and product managers dedicated to public good. We autonomously identify opportunities to solve public problems using tech, rapidly prototype, and launch solutions all the way from citizen-facing apps to automating public agency operations. Embracing an open-sourced and flat hierarchy, we cut through bureaucracy to focus on real-world, user-centric innovations that drive change.

The Team

In 2024, over S$1.1B was lost to scams in Singapore. Numbers for the first half of 2025 have shaped up to be in the same range. Public awareness and education about scams is not enough, we need active efforts in preventing scams from happening in the first place.

You will be joining the ScamShield team, which builds and operates Singapore's national anti-scam platform. As Singapore's unified citizen-facing brand for anti-scam efforts, ScamShield protects citizens from scam messages, calls, and links through AI-powered detection systems, provides tools for government agencies like the Singapore Police Force to coordinate anti-scam efforts at scale, and is expanding into scam awareness and education to help citizens recognise and avoid scams before they happen. To read more about ScamShield and our initiatives, visit our product page.

About the Role

We're looking for a Senior Software Engineer to join the ScamShield team. This role expects a blend of technical expertise, entrepreneurship and leadership skills, fostering a start-up mindset within our team.

Key Responsibilities

• Design and develop scalable, high-quality software across the tech stack and write production-ready code.
• Execute as a strong independent technical IC, championing best engineering practices and fostering a culture of continuous improvement.
• Build and maintain systems that process high volumes of scam reports and messages, ensuring reliability and performance at scale.
• Collaborate cross-functionally with multiple government agencies (e.g., Singapore Police Force, GovTech) and external partners (eg. Big Tech, banks, telcos), communicating technical tradeoffs and decisions effectively.
• Contribute to the development and improvement of AI-powered scam detection and classification systems.
• Identify and prioritize initiatives that maximize the security and efficiency of our products.
• Set, measure and achieve relevant objectives, aligning team efforts with overall strategic goals.

Preferred Skills and Qualifications

• Proficient in TypeScript, React, and AWS; experience with NestJS is a plus.
• Knowledge in working with RDBMS (ideally PostgreSQL).
• Experience with high-volume data processing is a strong plus ScamShield handles large volumes of scam messages and reports daily, and the ability to design performant systems at scale is highly valued.
• Experience with mobile app development is a plus ScamShield includes a citizen-facing mobile app for checking and reporting scams.
• Experience with secure software development lifecycle (SSDLC), including CI/CD processes, Git, Infrastructure as Code (IaC), and deploying applications to cloud environments.
• Experience in startups or fast-paced environments; proven ability to succeed in dynamic settings and manage shifting priorities.
• Experience in technical leadership, guiding software teams and setting high standards while mentoring engineers.
• Excellent communication skills for articulating technical concepts and ideas.
• A passion for public service, driving impactful changes, and improving how technology serves society.

Working at OGP

Ownership and Autonomy Beyond technical tasks, this means having autonomy to voice opinions and suggest future directions. Building what you believe in drives the creation of great solutions.

Rapid Prototyping We prioritize testing ideas over debating them, allowing us to identify problems quickly and convey possibilities to others. This fail-fast approach accelerates innovation.

Flexibility We provide flexible work arrangements based on what works best for our team and its members, fostering a productive and supportive environment.

Continuous Learning Drive professional growth by exploring new architectures, frameworks, and technologies. With dedicated yearly learning months and hackathons, continuous learning is essential as we tackle innovative ideas and challenges.

Mission-Driven Our work is dedicated to the public good, aiming to improve the lives of Singapore citizens. We focus on creating impactful solutions that enhance the community and the place we call home.

Projects OGP has worked on include:

ScamShield Citizen-facing mobile app, enhanced in August 2024, helps users check and report suspicious communications. The apps automatically filter known scam numbers using a machine learning classifier. An admin dashboard also allows police to verify reported scams.

ParkingSG A mobile app alternative to parking coupons. It lets users pay, extend, and refund their parking sessions just using their phones.

RedeemSG Helps the Singapore Government to create, send and track redemptions of digital vouchers easily.

COVID-19 Vaccination A suite of systems built to enable Singapore's national vaccination campaign for COVID-19. This includes informational sites, appointment booking systems, and records management systems.

data.gov.sg An open repository of all the Singapore Government's public data. It helps people understand the data using visualizations and articles, and provides real-time APIs for developers to use.

Isomer Provides government agencies with an easy-to-deploy static website building and hosting service to create usable, secure and faster informational websites quickly.

FormSG A form builder tool for agencies to self-service and create online forms that capture classified data, with the goal of replacing paper forms.

PaySG Was developed to enable digital payments for government services, and was initially used for payments for COVID-19 swab tests and Stay-Home Notices for incoming travellers to Singapore.

An overview of other OGP products can be found on our website https://open.gov.sg