About Codex Solutions
A joint venture company by ST Engineering and HTX (Home Team Science and Technology Agency), Codex Solutions is set up to be a dynamic and forward-looking technology company established to develop cutting-edge software solutions that support and strengthen Singapore’s homeland security efforts.
As a mission-driven organisation, we are focused on building strong in-house capabilities that directly address the complex challenges faced by the Home Team.
With a strong emphasis on innovation, product excellence, and impact at scale, Codex Solutions offers a unique environment where purpose meets technology.
We are assembling a diverse and talented team of technologists and problem solvers who are passionate about making a real difference.
If you're looking to shape meaningful solutions and be part of something bigger — Codex Solutions is where you’ll want to be.
Together, We Can Make A Significant Impact
We are looking for an experienced and forward-thinking Software Architect to define, lead, and evolve the architectural strategy of complex, enterprise-grade applications.
You will be instrumental in ensuring the scalability, security, performance, and maintainability of our software solutions, while also guiding development teams and influencing technology direction.
This role requires a strong mix of hands‐on technical leadership, architectural design, and cross‐functional collaboration.
Be Part of Our Success
Architectural Leadership
Lead end-to-end solution design — from requirement analysis to system architecture, integration, and delivery alignment.
Develop architecture blueprints, high-level design, and technology stack recommendations that balance scalability, security, and cost efficiency.
Collaborate with business and delivery teams to translate functional needs into technical solutions.
Present solution architectures and technical proposals to internal stakeholders and customers.
Standards & Best Practices
Define and maintain Codex’s software architecture standards, reusable components, and development guidelines.
Promote modern engineering approaches (Agile, DevSecOps, Cloud-Native, and Microservices).
Ensure architecture consistency across projects through reviews and technical governance.
Engineering Leadership & Delivery Enablement
Partner with engineering leads to ensure delivery teams adhere to approved architectural patterns.
Provide technical guidance during build and deployment phases (e.g., integration, performance, and security).
Participate in design and code reviews for critical systems.
Security, Compliance & Quality
Embed cybersecurity considerations and compliance standards into architectural design.
Champion resilience, observability, and performance engineering as part of solution quality.
Innovation & Modernization
Evaluate and introduce emerging technologies relevant to Codex’s product roadmap (AI/ML, data streaming, automation, low-code, etc.).
Support R&D initiatives led by the CTO to drive future-ready capabilities.
Contribute to defining and operationalizing product or platform modernization strategies.
Mentorship & Technical Oversight
Mentor engineers and technical leads to raise architectural competency across teams.
Contribute to internal knowledge sharing and architecture community initiatives.
Solutioning Support
Support pre-engagement and tender activities by developing solution proposals, architecture decks, and effort estimations.
Collaborate with bid teams to align proposed solutions with Codex’s technology direction.
Participate in client workshops to validate design assumptions and ensure solution alignment.
Qualities We Value
8+ years of experience
in software design and architectural experience, with exposure to solutioning or pre-sales architecture.
Experience in public sector or mission-critical domains is a plus.
Strong understanding of Agile, DevOps, and CI/CD practices with practical experience integrating software quality, automation, and cloud infrastructure.
Proven experience with software performance tuning, scalability, security compliance, and resilience engineering.
Solid foundation in API design, microservices, event-driven architecture, and cloud platforms (AWS, Azure, or GCP).
Demonstrated ability to lead cross-functional technical teams and manage complex stakeholder expectations.
Strong communication and documentation skills for both technical and non-technical audiences.
Our Commitment That Goes Beyond the Norm
An environment where you will be working on cutting‐edge technologies and architectures.
Safe space where diverse perspectives are valued, and everyone’s unique contributions are celebrated.
Meaningful work and projects that make a difference in people’s lives.
A fun, passionate and collaborative workplace.
Competitive remuneration and comprehensive benefits.
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