Senior Full Stack Engineer

Help Build the Security Layer for the Agentic AI Era We’re building at the frontier of two unstoppable waves: agentic AI and security . Autonomous AI agents are exploding in capability — planning, executing, and learning in real time — but enterprise security hasn’t caught up. That’s where we come in. At Skyrelis, we’re creating the runtime security and observability layer for next-gen agentic systems, giving enterprises the trust, visibility, and control they need without slowing innovation. This is your chance to be part of a founding engineering team shaping a completely new category — agentic security — at the moment it matters most. If you’ve ever wanted to join a startup right as the market is being created , work hands-on with cutting-edge AI frameworks , and help define the best practices and tools for securing autonomous systems at scale, this is it. Why Join Us Shape a New Category – Build the security and observability layer for agentic AI before anyone else does. Frontier Tech – Work hands-on with multi-agent AI frameworks, runtime guardrails, and real-time security analytics. Zero → One Impact – No legacy code, no bureaucracy — your work defines the product and company direction. High Ownership – Early-stage equity and technical leadership in a rapidly growing market. World-Class Team – Founders with deep AI and cybersecurity experience who move fast and build ambitiously. Role Overview This is a full-time contractor position for a Senior Full Stack Developer . You will architect, design, and develop highly scalable and secure systems for the Management Plane of our SaaS platform. You’ll work across the full stack — from clean and modular frontends to robust and secure backend APIs — and ensure smooth integration with Auth0, PostgreSQL multi-tenant databases, and AWS infrastructure. This role demands strong hands-on development experience, deep understanding of system design, and a commitment to clean, maintainable, and scalable code. Key Responsibilities Frontend Development Build responsive, accessible, and high-performance UIs using React , Redux , TypeScript , and Tailwind CSS . Write clean, modular, and reusable components following modern React patterns (Hooks, Context API). Maintain design consistency with scalable UI architecture principles. Backend Development Design and develop RESTful APIs for a multi-tenant SaaS application , ensuring tenant isolation and data integrity . Implement secure authentication and authorization flows using Auth0 , JWT , and RBAC . Design and manage PostgreSQL database schemas for multi-tenant environments (schema-per-tenant). Build and maintain database scripts, functions, and schema synchronization utilities. Write clean, testable, and well-documented code with a focus on readability and maintainability . Design scalable backend solutions capable of handling high concurrency and large datasets. Implement API security best practices — input validation, rate limiting, secure token management, and access control. Conduct code reviews, refactoring, and performance optimization to ensure robust system performance. DevOps & Deployment Containerize applications using Docker and deploy to AWS ECS/ECR . Define and maintain AWS CloudFormation templates for infrastructure as code. Collaborate on CI/CD pipelines using GitHub Actions for automated testing and deployments. Monitor and troubleshoot production systems, ensuring uptime and reliability. Required Skills & Experience 5+ years of experience as a Full Stack Developer with proven experience in production SaaS environments. Strong proficiency in: Frontend: HTML, CSS, JavaScript, TypeScript, React, Redux, Hooks, Tailwind CSS. Backend: Node.Js, Express, TypeScript, RESTful API development. Authentication/Authorization: Auth0, JWT, Role-Based Access Control (RBAC). Database: PostgreSQL — schema design, schema-per-tenant management, stored procedures, and migration scripts. Experience building secure, scalable, and high-performance backend systems. Strong understanding of API security , including OWASP best practices. Solid knowledge of containerization and orchestration (Docker, ECS, ECR). Experience with AWS services and infrastructure as code (CloudFormation) . Hands-on experience with GitHub Actions or similar CI/CD tools. Commitment to writing clean, maintainable, and modern code with proper documentation and testing. Strong debugging, optimization, and problem-solving abilities. Nice To Have Experience with microservices or event-driven architectures . Familiarity with AWS Lambda , API Gateway , and Serverless deployments. Understanding of Domain-Driven Design (DDD) and Clean Architecture principles. Experience developing developer-friendly APIs and internal SDKs. Previous experience building SaaS platforms. We’re grateful to everyone who takes the time to apply. While we’re unable to respond to every applicant, we’ll be in touch directly with those whose experience aligns closely with the role.