Senior Software Engineer, AI Products

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.

Be Part of Our Success

• Develop full-stack, reactive web applications for deployment on desktop or cloud platforms such as AWS, Microsoft Azure or GCP.

• Work with UX/UI designers to develop responsive front-end user interfaces using HTML, CSS, React.js or equivalent technologies.

• Work with AI Engineers and Software Engineers to develop server-side applications using Python, Node.js or equivalent frameworks.

• Leverage AI-assisted development tools to improve software development productivity, code quality and engineering workflows.

• Apply hands-on experience with Generative AI and Agentic AI to design and implement intelligent application features and workflows.

• Integrate Generative AI, Large Language Models (LLMs), Retrieval-Augmented Generation (RAG) and Agentic AI capabilities into applications through APIs and appropriate architecture, enabling secure, scalable and maintainable intelligent features and workflows.

• Work with QA engineers to develop test scripts and ensure the quality and reliability of applications.

• Troubleshoot and resolve technical issues during development and in production.

• Document and communicate full-stack and AI integration designs to technical stakeholders.

• Apply DevOps, CI/CD, automated testing, software design and secure coding best practices.

• Keep abreast of emerging technologies, tools and trends across full-stack development, Generative AI and Agentic AI.

• Work closely with engagement and product managers to develop prototypes and demos for end users.

Qualities We Value

• Experience in technology development with min. 3 years of experience in delivering large-scale projects with multi-sites deployment and proven track records.

• Hands-on experience with front end languages such as HTML5, CSS and JavaScript and frameworks such as React or Angular.

• Hands-on experience with back-end technologies / framework such as Python, Node, Express and SQL/NoSQL Database.

• Hands-on experience with test automation and CI/CD workflow.

• Hands-on experience with Docker and Kubernetes is preferred.

• Experience with software development practices using Agile SCRUM or Kanban methodology.

• Ability to communicate technical concepts in a clear and effective manner.

• Ability to work effectively with cross-functional teams.

• Self-motivated, team player, creative with excellent communication skills, excellent interpersonal skills and ability to work independently.

• Having domain knowledge in Homeland Security sector will be an added advantage.
  

Our Commitment That Goes Beyond the Norm

• Opportunity to work on meaningful public sector digital initiatives.

• A supportive, purpose-driven team culture.

• Structured career development and technical upskilling.

• Access to modern tools, cloud technologies, and secure DevSecOps environments.

Additional Information

Shortlisted applicants may be involved in classified or sensitive projects that require handling of restricted information. As such, selected candidates will be required to undergo a security clearance process as part of the employment consideration.