Location: Remote (US-based)
Type: Full-time
Experience: 10+ years
About the Role
We’re looking for a senior, hands-on engineer who can build independently today and lead a team tomorrow.
This role starts as a solo, high-ownership position, where you will take full responsibility for critical parts of our system. Within 6–12 months, you are expected to hire, lead, and scale a team of 4–10 engineers.
You’ll work closely with leadership in Israel while operating autonomously in the US.
About the Product
Althimis is building a real-time, large-scale training 3D platform and simulation combining:
- MMO-scale collaboration
- Physical simulations
- AI-driven systems
- Browser-based (WebGL) real-time environments
Our focus is on performance, scalability, and real-world simulation accuracy, targeting enterprise, defense, and advanced training use cases.
What You’ll Do
Phase 1 – Hands-On (Initial Months)
- Own and develop core systems end-to-end (Unity + backend)
- Build real-time, scalable systems supporting thousands of users
- Work across:
- Unity (client, simulation, rendering)
- Backend services (APIs, real-time communication, infra)
- Solve performance, networking, and system design challenges
Phase 2 – Leadership (Within 12 Months)
- Build and lead a team of 4–10 engineers
- Define architecture, standards, and processes
- Own planning, delivery, and technical direction
- Mentor engineers while staying technically involved
What We’re Looking For
Core Requirements
- 10+ years of software engineering experience
- Strong C# expertise
- Deep experience with Unity (real-time / multiplayer / simulation)
- Proven experience building production backend systems
- Strong system design and architecture skills
- Experience working across frontend + backend systems
Leadership Experience
- Prior experience leading teams (at least 4 engineers)
- Still hands-on recently (not purely managerial)
- Experience owning projects end-to-end
- Ability to scale into a team of 4-10 within a year
Technical Strength
- Experience with:
- Real-time systems (WebSockets, WebRTC, multiplayer frameworks)
- Scalable backend architecture (APIs, async systems, caching)
- Observability (logs, metrics, tracing)
- Strong understanding of:
- Clean architecture (DI, modular systems)
- Performance optimization (CPU, GPU, memory, bandwidth)
Math & Simulation
- Strong mathematical thinking
- Experience or familiarity with:
- Physical simulations
- Real-time systems requiring numerical accuracy
- Ability to reason about performance and correctness from first principles
Nice to Have
- Experience with Photon, SignalR, or similar
- Experience building physical Simulation
- Experience creating training / learning applications
- Background in AI systems or data pipelines
- Experience in defense / enterprise / regulated environments
- Knowledge in front end REACT
- Experience building MMO-scale systems
What Makes This Role Unique
- Start as a solo builder with massive ownership
- Quickly grow into a team leader role
- Work on a technically challenging product combining:
- Real-time 3D
- Backend systems
- AI
- Simulation
- Influence both architecture and team culture from day one
Apply
If you’re a hands-on senior engineer ready to step into leadership and build something ambitious from the ground up — we’d love to talk.
If you cover 80% of the requirements please apply
Pay: $90,000.00 - $109,000.00 per year
Benefits:
- 401(k)
- Dental insurance
- Flexible schedule
Work Location: Remote
