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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