Journee is a technology startup founded in 2020. Our in-house low-latency streaming technology and GPU fleet orchestration systems are the engines behind our award-winning work with brands such as BMW, H&M, and Siemens.
We are now building and scaling Ojin, our newly launched real-time generative AI platform for developers. Ojin provides the APIs and inference infrastructure for developers to build and scale interactive applications and AI agents. For this new venture, we are building a small, ambitious team of highly talented individuals.
The Role
This is a hands-on technical leadership role.You will lead a team of up to 10 engineers (ML, backend, frontend, infra), while remaining deeply involved in architecture, performance optimisation, and product direction.
We're looking for a high energy builder - someone ambitious, technically sharp, and excited to grow into a CTO level leader over time.
This is for someone who want to build something meaningful and take ownership of a real system not just manage one.
This is a full-time position, either in our Berlin office or remote (CET +/- 2h).
What You'll Do
Architecture & Technical Direction
- Own overall system architecture across:
- Conversational AI systems (LLMs, orchestration, real-time inference)
- Voice + Avatar pipelines (latency-sensitive systems)
- Developer platform (APIs, SDKs, tooling, observability)
- Drive our cloud infrastructure strategy (AWS/GCP/Azure) Ensure scalability, reliability, and enterprise-grade security
Performance & Ml Systems
- Optimise real-time AI inference (latency, throughput, cost)
- Improve orchestration of models (LLMs, TTS/STT, and related components)
- Design systems that handle high concurrency at enterprise scale
- Balance latency, cost and product quality across deployments
Developer Platform
- Lead API architecture and SDK strategy
- Improve developer onboarding and self-serve capabilities
- Build scalable abstractions for agent creation and deployment
- Stengthen observability, debugging, and developer tooling across the platform
Team & Culture
- Lead and mentor a team of up to 10 engineers
- Attract and hire strong technical talent
- Set a culture of ownership, velocity, and accountability
- Keep planning and delivery lightweight, focused, and effective
Hands-On Contribution
- Review architercture and critical code paths
- Prototype and unblock high impact work
- Step into performance or production challenges when needed
What We're Looking For
- You have 8 - 12 + years in engineering, including leadership experience.
- Experience leading engineering teams (5+ engineers)
- Strong cloud architecture background (AWS/GCP/Azure)
- Deep understanding of distributed systems and scalable backend architecture, including APIs and platform design
- Experience running ML systems in production
- Strong full-stack understanding (backend + frontend)
- Experience working directly with founders
Highly Valuable Experience
- ML inference performance optimissation
- Real-time/low-latency systems
- Building developer platforms or APIs at scale
- Startup or scale-up background
Profile Fit
- Builder mentality - not just management
- High ownership and strong execution energy
- Comfortable with ambiguity
- Product minded, not purely infrastructure driven
- Willing to lead code
Why work with us
We offer the autonomy to do your best work, the tools you need to succeed, and the rest you need to recover. We're looking for high performers who take ownership, move fast, and deliver exceptional results.
What Success Looks Like (12 Months)
- Reduced latency and optimised inference costs
- Developer onboarding simplified and platform adoption increased
- Enterprise grade reliability and scalability across customer deployments
- Clear technical roadmap aligned with product strategy
- A strong culture of ownership and execution
- Tem grown to 15 - 20 high quality engineers
Why Join
- Real product-market validation
- Revenue-generating AI platform
- Real traction in enterprise conversational ai
- Direct impact on architecture and culture
- Opprotunity to grow into CTO
Journee is committed to creating a diverse and inclusive workplace where everyone is treated with dignity, respect, and fairness. We value diversity in all its forms, including but not limited to race, ethnicity, gender, sexual orientation, age, religion, national origin, disability, and veteran status. We believe that a diverse and inclusive workplace leads to better business outcomes, stronger relationships with our customers and partners, and a more fulfilling work experience for our employees.