Principal Full-stack Engineer (Node/React, Backend-focused)

🚀 Who we are:

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries.

📍About the Product:
You’ll work on a cloud-native AI governance platform designed to intercept, classify, and control high-velocity AI interactions in real time.

The platform analyzes user prompts, AI responses, coding-agent activity, and enterprise search outputs. It applies need-to-know access filtering, policy transformations, and audit controls within sub-second decision windows, ensuring sensitive knowledge never crosses boundaries it shouldn’t. 

This product introduces a new security layer designed specifically for AI systems, enabling organisations to innovate quickly while maintaining strict governance over their data and models.

🎯 About the Role:
We are looking for a Principal Full-Stack Engineer (Backend-focused) to join a small, high-caliber team developing the core components of the system.

- Your primary focus will be backend engineering with Node.js/TypeScript - building high-performance services, scalable APIs, distributed processing flows, and policy-evaluation pipelines.

- When needed, you’ll contribute to the React-based frontend to deliver features end-to-end. 

- You will take ownership of major technical decisions, collaborate with engineering, product, DevOps, and AI/security teams. 

🔥 Why This Role Stands Out:

• Mission-critical product and deep engineering challenges 
• Modern stack: Node.js, TypeScript, React, PostgreSQL, Docker, cloud-native tooling
• Focus on architectural thinking: system structure, service-to-service communication, and production scalability
• Work on real multi-service production systems
• High degree of autonomy and technical ownership
• Fully remote, flexible environment with strong operational support

📍What You Bring:

• 10+ years of professional software development experience
• 5+ years of hands-on experience with Node.js and TypeScript, including strong understanding of runtime behavior and performance optimization
• Strong knowledge of backend architecture, distributed systems, scalable service design, and service-to-service communication in multi-service production environments
• Proven experience building SaaS systems with relational databases (PostgreSQL or similar) in containerized/cloud-native environments
• Practical React experience sufficient for full-stack delivery
• Strong communication skills and comfort working asynchronously in a distributed team
• Ability to thrive in a fast-paced, high-ownership environment
• Excellent English (written and spoken)

Nice to Have:

• Experience with CI/CD pipelines (GitHub Actions or similar)
• Experience with Python and/or Go
• Production experience with large-scale TypeScript-based backend systems
• Exposure to LLM/AI products (LLM APIs, vector DBs, orchestration frameworks)
• Experience integrating ML/AI models into production systems
• Background in B2B or security-focused products

Why Us?

- We provide 20 days of vacation leave per calendar year (plus official national holidays of a country you are based in).

- We provide full accounting and legal support in all countries we operate.

- We utilize a fully remote work model with a powerful workstation and co-working space in case you need it.

- We offer a highly competitive package with yearly performance and compensation reviews.