Senior Fullstack Engineer

Cloudsine (https://www.cloudsine.tech) is an up and coming Web and GenAI security technology company headquartered in Singapore. Our flagship software, WebOrion® (https://www.weborion.io), is already trusted and used by large enterprise customers such asBanks, Government, Telcos, and Large Forbes Global 2000 companies spread across Asia including Australia, Indonesia, India, Philippines, Hong Kong andSingapore.

Now, we're taking on the next frontier: building an AI Security Platform to defend against AIattacks such as Prompt Injection, Image Poisoning, etc from OWASP Top10 forLLM. We're looking for a hands-on engineering leader to own delivery of thisroadmap — if you're ready to be part of a revolutionary mission in the world of cybersecurity, this is your chance to shine!

What you will be working on:

• Design, build, and ship features end-to-end across the frontend and backend of CloudsineAI's product suite, includingWebOrion® and TraceCtrl

• Work closely with the Software Engineering Manager and Product Manager to turn roadmap items into well-scoped technical designs and shipped releases

• Write clean, well-tested, and maintainable code,and participate actively in code reviews to help raise the bar across the team

• Collaborate with the Lead Cyber Researcher to help productionize research findings — turning detection techniques and security models into robust, scalable product features

• Work with DevOps on deployment, observability,and performance of the services you build

• Support the Technical Director on technical implementation for Enterprise & Public Sector customization requests whereneeded

• Take ownership of specific product modules or services, including their long-term technical health and scalability

• Contribute to technical architecture discussions and help mentor more junior engineers as the team grows

• Stay current with modern web, cloud, and AI/security engineering practices

What we are looking for:

• Bachelor's Degree in Computer Science,Engineering or equivalent

• 2–6 years of professional fullstack softwaredevelopment experience

• Strong hands-on experience with a modern frontend framework (e.g. React, Vue) and backend language (e.g. Python, Golang,Node.js/TypeScript)

• Solid understanding of REST/GraphQL API design,databases (SQL and/or NoSQL), and cloud-native deployment (AWS)

• Comfortable working with CI/CD pipelines and containerized environments (Docker, Kubernetes)

• Familiarity with AI/ML concepts or cybersecurity fundamentals is a strong plus, given our GenAI security domain

• Strong problem-solving skills, attention todetail, and ability to work well in a fast-paced, evolving startup environment

• Able to work both independently and collaboratively across product, research, and delivery teams

• Only Singapore citizens or PRs need apply

Interested applicants, please drop us a note at [email protected] with your CV and cover letter.