Senior Full Stack Engineer / System Architect

We’re looking for a Senior Full-Stack Engineer / System Architect for a Vienna-based SaaS company on a mission to help organizations unleash their leadership potential — through digital feedback workflows, OKRs, mentoring, and people analytics that support managers at every level.

The Role
We're hiring a hands-on Full Stack System Architect to lead architecture for our enterprise AI SaaS platform — spanning Angular, TypeScript, Python, Node.js, cloud infrastructure, and AI/LLM integration. The product combines agentic AI workflows with precision AI tools for people analytics, leadership development, and performance management.
This is not a management role. Our six-person remote team (four full-time, spanning Austria and India) is close-knit, well-organized, and doesn't need another layer of hierarchy. We need a technical peer — a "shark in the pond" — senior enough to challenge, mentor, and upskill the team through hands-on delivery, not authority.

What You'll Do
Own system architecture for a scalable, enterprise-grade AI SaaS platform
Architect across the stack: Angular/TypeScript frontend, Python/Node.js backend
Design and ship AI/LLM integrations in production, including agentic workflows
Take direct ownership of project streams and sprints
Expand the team's use of AI-assisted tooling (we currently use Claude for coding and design)
Mentor and gently challenge the team, raising standards without disrupting trust
Manage infrastructure: cloud, CI/CD, Docker, Kubernetes, Terraform

What We're Looking For
Proven scalable SaaS system architecture experience
Strong Angular + TypeScript and Python + Node.js expertise
Track record integrating AI/LLMs into production
Solid cloud, CI/CD, Docker, Kubernetes, Terraform skills
Strong technical leadership with genuine hands-on delivery — a senior IC, not a manager
A collaborator who values cultural fit and trust, and can integrate into an established remote team rather than restructure it
Nice-to-have: HR-tech / people-analytics domain experience; experience mentoring engineers remotely

Practical Details
Full-time, flexible start 7:00–10:00 AM Vienna time
Fully remote — anywhere in Europe or safe zones in Ukraine
Full GDPR compliance, VPN and two-factor authentication required
Joining a 6-person engineering team led by a strong 26-year-old lead engineer
Equal opportunity — we welcome applicants of all genders and backgrounds; our engineering team is currently male-dominated and we're working to change that.