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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Lead Full-Stack / Unity Architect (Future Team Lead - US) - **Company:** Althimis, Inc. - **Location:** United States (Remote available) - **Experience:** Expert - **Salary:** $90,000.0 - $109,000.0 - **Contract:** Temporary contract - **Skills:** Multitier Architecture, Application Programming Interfaces (APIs), Artificial Intelligence, C Sharp (Programming Language), Performance Tuning, SignalR, Software Engineering, WebSocket, WebGL, WebRTC, Real Time Systems, ReactJS, Caching, Backend, Front End Software Development, Data Pipelines - **Published:** July 2, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=c42fa9165618dab2 ## About the Role 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, 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. ## Description 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 ## Related Videos - [Coding an Immersive Copilot using Unity / .NET and Azure OpenAI!](https://www.wearedevelopers.com/videos/1204-coding-an-immersive-copilot-using-unity-net-and-azure-openai) - [REST, GraphQL, gRPC, and more: A comparison of modern API styles](https://www.wearedevelopers.com/videos/100247-rest-graphql-grpc-and-more-a-comparison-of-modern-api-styles) - [Transforming Education: A Journey from interactive Markdown to Remote-Labs](https://www.wearedevelopers.com/videos/941-transforming-education-a-journey-from-interactive-markdown-to-remote-labs) - [Rendering Design Software in the Browser at Penpot](https://www.wearedevelopers.com/videos/1353-rendering-design-software-in-the-browser-at-penpot) - [Blazor – the new SPA Framework for everyone who hates JavaScript](https://www.wearedevelopers.com/videos/699-blazor-the-new-spa-framework-for-everyone-who-hates-javascript) - [Hello JARVIS - Building Voice Interfaces for Your LLMS](https://www.wearedevelopers.com/videos/1641-hello-jarvis-building-voice-interfaces-for-your-llms) ## Related Articles - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Dev Digest 132 - Binging WADFlix?](https://www.wearedevelopers.com/magazine/473-dev-digest-132-binging-wadflix) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)