Founding Software Engineer

1 week ago


London, Greater London, United Kingdom TYTEN AI (formerly Fixo AI) Full time £80,000 - £120,000 per year

The CallWe're building TYTEN, bringing AI to the backbone of the $1.5T facilities management industry. Not a "sexy" industry, but the one that keeps the world running: elevators that don't trap people, heating that works in winter, pipes that don't burst on Christmas Eve. This industry is starving for change, and companies are banging down our door, demanding we build faster.Our products help technicians and FM companies by orchestrating help desk operations, creating perfect work orders, and guiding engineers step-by-step with AI to resolve issues faster.At the same time, it's not just about efficiency — it's about people like you and me being able to enjoy their homes and workplaces without disruption.We're three founders, fully locked in. For us, it's go big or go home:Vlad  — digs until he knows exactly what's broken on the client's side, then fights like hell to make sure we have the resources to fix it.Serge  — lives in the infra trenches, fighting code and chaos at 4am.Tom  — commercial bloodhound, already pulling in contracts while the ink on our whiteboard is still wet.Now we need a Cracked Architect & Engineer (grit > specific frameworks). Someone who's not here for "another job," but for a shot at impact.Who We're Talking ToMaybe you've started a business before and it blew up. Good. You've got scars.Maybe you always wanted to, but fear (or rent) kept you back. Fine. Here's your chance.You want equity, not because it sounds cool at dinner, but because you actually want to own something that matters.The RoleWe are looking for a Founding Systems Architect / Engineer who can bridge architecture, system design, and business analysis. This is a partner-level role: you'll work closely with the founding team to design how our systems interact, ensure robustness and scalability, and document processes so we can move faster.What We're Looking ForArchitecture & DesignOwn the system architecture across our AI products (WhatsApp AI assistant, React Native engineer app, Django/FastAPI dashboards, help desk orchestration).Map and document system interactions (APIs, request/response structures, cloud workflows).Define data flows end-to-end — where data comes from, in what format, how it's processed, and where it goes next.Produce clear technical documentation that turns complex workflows into something buildable.Apply strong systems thinking and communicate designs in plain English.Engineering & DeliveryWork hands-on with Python (FastAPI, Django) and PostgreSQL for schema design, optimisation, and scaling.Build and maintain cloud infrastructure (AWS preferred; GCP/Azure), including EC2, S3, VPC, IAM, CloudFormation/Terraform, and backups.Set up and improve DevOps pipelines: CI/CD, Docker, Kubernetes, automated tests, load testing, and web/application servers (e.g. Apache).Troubleshoot effectively using CLI tools (bash).Guide integrations with external CAFM/CRM systems via APIs.Apply a strong ownership mentality — taking features from design through deployment and ensuring reliability in production.Standards & CollaborationChampion best-in-class engineering practices across the stack.Partner with the CTO to refine architecture and shape technical direction.Contribute to product strategy sessions, influencing what gets built next.Carry real responsibility: if something breaks, we fix it together.Focus on delivering customer impact as much as technical elegance.Bonus Points If You HaveBackground:  5+ years as a software engineer, systems engineer, or solutions architect in a high-growth startup or top tech firm.Communication skills:  Comfortable collaborating with engineers, founders, and customers.AI/LLM experience (LangChain, LlamaIndex, prompt engineering, vector stores)Document/OCR processing (PDFs, images)Scheduling & optimisation expertise (resource allocation, SLA-driven scheduling)Familiarity with Typescript, React, and SQLAlchemyExperience measuring product performance and user outcomesWhy It's Worth ItIt won't be easy. We have a mountain of things to build, customers breathing down our necks. But if we are all doing this together.If you're tired of cushy, boring jobs that don't matter, this is your chance to do work with teeth.Founding-level influence:  shape the architecture, culture, and technical direction.Cutting-edge tech:  large language models (OpenAI, Gemini), cloud automation, AI-driven workflows.Growth stage:  we're funded, live with pilots, and scaling fast. You'll build systems that move from pilot to thousands of sites.If you want meaning, autonomy, great teamwork, excitement, sweat, and maybe a little glory — grab a place on deck.



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