Flow Engineering Logo

Flow Engineering

Senior/Staff Software Engineer

Posted 12 Days Ago
Be an Early Applicant
In-Office
London, Greater London, England, GBR
Senior level
In-Office
London, Greater London, England, GBR
Senior level
Build and ship AI-powered requirements features, including drafting, consistency checks, impact analysis, intelligent suggestions, and agentic workflows. Integrate and evaluate language models while optimizing reliability, latency, cost, observability, and safety. Develop supporting infrastructure such as data pipelines, evaluation harnesses, prompt and model management, and guardrails. Work across backend, APIs, and UI, partnering with product and customers to prototype, validate, and productionize solutions.
The summary above was generated by AI
About Flow

Flow Engineering is an AI-native requirements platform for modern engineering organizations, enabling hardware teams to collaborate with AI agents to design, validate, and evolve complex systems with speed and rigor.

About the role

Flow is seeking software engineers to build AI-powered capabilities that help teams author, review, and manage requirements more effectively. You will work on agentic systems engineer and agentic domain engineer workflows—bringing AI into the center of how teams reason about their systems.​

This role sits at the intersection of AI, product, and full-stack engineering: you will take ideas from prototype all the way to stable, observable features in production.​

What you’ll do
  • Design and ship AI-powered features such as assisted requirement drafting, consistency checks, impact analysis, and intelligent suggestions for systems and domain engineers.

  • Build agentic workflows that help “agentic systems engineers” and “agentic domain engineers” explore designs, simulate changes, and validate requirements.​

  • Evaluate and integrate language models and related tooling, optimizing for reliability, latency, cost, and debuggability in production.

  • Build and maintain the surrounding infrastructure: data pipelines, evaluation harnesses, prompt and model management, observability, and safety/guardrails.

  • Work across the stack—from backend integrations and APIs to simple UI hooks—to deliver complete AI features, not just model endpoints.

  • Partner with product and customers to identify high-value workflows, run experiments, and iterate quickly based on usage.

About you
  • 5+ years developing production software, including designing, testing, and operating services at scale in a cloud environment.

  • Hands-on experience with modern LLM providers and tooling (e.g., OpenAI, Anthropic, Hugging Face, vector stores, RAG patterns).

  • Familiarity with prompt design, retrieval-augmented systems, evaluation methods, and safety/guardrail approaches.

  • Ability to reason about tradeoffs between different models, architectures, and deployment patterns and make pragmatic decisions.

  • Comfortable working in a high-ownership, fast-paced environment where experiments and iteration are the norm.

Our stack (AI-leaning)
  • TypeScript/Node.js and Python for AI and backend services.

  • Modern LLM APIs and orchestration libraries for building agentic workflows.

  • Postgres and other managed cloud services for data and state.

How we work & values
  • Speed over everything: prototype AI workflows quickly, then harden what works.​

  • Own, downscope, ship, iterate: one clear owner per feature, from prototype to production.​

  • Fundamentals done well: evaluation, observability, and safety are part of the first version, not an afterthought.​

  • Competitive salary and meaningful equity.

  • Health, dental, and vision coverage.

  • Flexible time off and support for experimentation, learning, and staying current with the AI ecosystem.

Similar Jobs

10 Days Ago
Hybrid
London, Greater London, England, GBR
Senior level
Senior level
Fintech • Mobile • Payments • Software • Financial Services
Design and lead scalable consumer onboarding systems supporting high traffic, rapid market growth, and reliable customer experiences. Define technical architecture, contracts, and integration points across teams including Marketing, FinCrime, and KYC. Own core systems, improve performance and cost efficiency, establish technical strategy, mentor engineers, and collaborate with technical and non-technical stakeholders.
Top Skills: Distributed SystemsJavaMicroservicesObject-Oriented Programming
12 Days Ago
Hybrid
London, Greater London, England, GBR
Senior level
Senior level
Blockchain • Fintech • Payments • Cryptocurrency • Web3
Design, build, and operate high-throughput Rust backend services for financial transactions, compliance, custody, stablecoins, and blockchain infrastructure. Own features end to end, integrate with banks, payment processors, blockchains, and compliance vendors, and improve observability, security, incident response, and API quality. Staff engineers additionally set technical direction, make cross-team architecture decisions, and mentor engineers.
Top Skills: BlockchainC#C++EvmGoHsmMpcRustSolanaSolidity
12 Days Ago
In-Office or Remote
London, Greater London, England, GBR
Senior level
Senior level
Aerospace • Automation
Architects and deploys multimodal 2D/3D object detection and tracking models using camera, LiDAR, and radar data. Owns perception data collection, dataset development, evaluation pipelines, production monitoring, and the perception system roadmap. The role also requires cross-functional leadership and mentoring junior engineers.
Top Skills: 2D/3D Object DetectionAutonomous VehiclesCameraComputer VisionDeep LearningEvaluation Metrics PipelinesLidarMachine Learning DatasetsModel DeploymentMulti-Modal PerceptionObject TrackingPythonRadar

What you need to know about the London Tech Scene

London isn't just a hub for established businesses; it's also a nursery for innovation. Boasting one of the most recognized fintech ecosystems in Europe, attracting billions in investments each year, London's success has made it a go-to destination for startups looking to make their mark. Top U.K. companies like Hoptin, Moneybox and Marshmallow have already made the city their base — yet fintech is just the beginning. From healthtech to renewable energy to cybersecurity and beyond, the city's startups are breaking new ground across a range of industries.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account