151 to 175 of 188 FastAPI Jobs in the South East

Haves: 5+ years of backend or ML engineering experience, with a recent deep focus on LLM application layers. Expert-level Python: Deep familiarity with FastAPI, asyncio, and pydantic. Real-Time Experience: Proven track record building low-latency voice or text systems (experience with WebRTC, sockets, or similar streaming technologies). … standards (SIP, SRTP) or modern voice infrastructure (e.g., LiveKit). Experience with GCP (Cloud Run, GKE) and Healthcare data standards. Tech Stack Core: Python, FastAPI, Pydantic, Asyncio. Data: Postgres, Redis, Vector Stores. Voice/Infra: WebRTC, SIP Gateways, Docker, Kubernetes, Terraform. AI/Ops: OpenTelemetry, Custom Eval Frameworks. ...

Haves: 5+ years of backend or ML engineering experience, with a recent deep focus on LLM application layers. Expert-level Python: Deep familiarity with FastAPI, asyncio, and pydantic. Real-Time Experience: Proven track record building low-latency voice or text systems (experience with WebRTC, sockets, or similar streaming technologies). … standards (SIP, SRTP) or modern voice infrastructure (e.g., LiveKit). Experience with GCP (Cloud Run, GKE) and Healthcare data standards. Tech Stack Core: Python, FastAPI, Pydantic, Asyncio. Data: Postgres, Redis, Vector Stores. Voice/Infra: WebRTC, SIP Gateways, Docker, Kubernetes, Terraform. AI/Ops: OpenTelemetry, Custom Eval Frameworks. ...

Haves: 5+ years of backend or ML engineering experience, with a recent deep focus on LLM application layers. Expert-level Python: Deep familiarity with FastAPI, asyncio, and pydantic. Real-Time Experience: Proven track record building low-latency voice or text systems (experience with WebRTC, sockets, or similar streaming technologies). … standards (SIP, SRTP) or modern voice infrastructure (e.g., LiveKit). Experience with GCP (Cloud Run, GKE) and Healthcare data standards. Tech Stack Core: Python, FastAPI, Pydantic, Asyncio. Data: Postgres, Redis, Vector Stores. Voice/Infra: WebRTC, SIP Gateways, Docker, Kubernetes, Terraform. AI/Ops: OpenTelemetry, Custom Eval Frameworks. ...

Haves: 5+ years of backend or ML engineering experience, with a recent deep focus on LLM application layers. Expert-level Python: Deep familiarity with FastAPI, asyncio, and pydantic. Real-Time Experience: Proven track record building low-latency voice or text systems (experience with WebRTC, sockets, or similar streaming technologies). … standards (SIP, SRTP) or modern voice infrastructure (e.g., LiveKit). Experience with GCP (Cloud Run, GKE) and Healthcare data standards. Tech Stack Core: Python, FastAPI, Pydantic, Asyncio. Data: Postgres, Redis, Vector Stores. Voice/Infra: WebRTC, SIP Gateways, Docker, Kubernetes, Terraform. AI/Ops: OpenTelemetry, Custom Eval Frameworks. ...

benchmark these systems rigorously to ensure they actually work, not just \"feel\" smart. Build the Backend Foundation: You will spend significant time in Python (FastAPI, SQLAlchemy) building the APIs, data structures, and services that power the product. You are an engineer who ensures the \"AI\" is delivered on reliable, production … Experience Production Engineering (5+ years): You are a strong software engineer first. You have extensive experience building and maintaining backend services in Python (ideally FastAPI or similar async frameworks) deployed to modern cloud providers (GCP/AWS) or point solutions (Railway, Render, Vercel) Applied AI Architecture: You have built complex ...

London | £70,000–£85,000 per year |Hybrid (3 days in office) We are seeking a talented Software Engineer to join a leading asset management technology team, driving innovation through transformative, data‐driven, and scalable ...

Software Engineer - Python/FastAPI/React/Functional programming/Typescript Location: London, UK (Hybrid) Type: Full-time Level: Mid to Senior Salary: £70,000 to £100,000 Company: VC back Startup About the Role: This startup is building a cutting-edge platform to transform how engineers design physical … Google across Software Engineering, Data Science, Theoretical Physics, and Computational Geometry. Opportunities: Frontend or Backend Tech Stack within the engineering environment: Backend: Python, FastAPI, Pydantic, PostgreSQL, Docker Frontend: React, TypeScript, Vite Infrastructure: GitHub Actions, GCP, Kubernetes (optional) Paradigms: Functional programming, async APIs, event-driven architecture Responsibilities Build and maintain backend ...

Backend Software Engineer – Python/FastAPI/Event Driven Architecture Location: London, UK (Hybrid) Type: Full-time Level: Mid to Senior Salary: £70,000 to £100,000 About the Role: This startup is building a cutting-edge platform to transform how engineers design physical products. Instead of creating one solution … real-world engineering not just building software, but helping change how things are designed and built. Tech Stack within the engineering environment: Backend: Python, FastAPI, Pydantic, PostgreSQL, Docker Infrastructure: GitHub Actions, GCP, Kubernetes (optional) Paradigms: event-driven architecture Responsibilities Build and maintain backend services using FastAPI and Python for geometry ...

pivotal role in designing, building, and scaling the company's backend systems and infrastructure. You'll architect reliable, high-performance services in Python (FastAPI, Flask) and help evolve the platform for large-scale AI workloads. A strong DevOps mindset and experience with production-scale systems will be key to success. … Responsibilities: Architect and develop scalable, high-performance backend services using Python (FastAPI, Flask) and Node.js. Design, build, and maintain an AWS-based platform supporting AI, data, and web products. Manage and optimise Kubernetes clusters for availability, performance, and cost efficiency. Develop and maintain CI/CD pipelines with GitHub Actions ...

Senior+ Software Engineer - Python | FastAPI | AWS £90,000-120,000 + Bonus and Stock Flexible benefits | 90 day work-from-anywhere perk Python, FastAPI, gRPC, AWS Remote first or hybrid (London) InsurTech | high traffic, scalable, event-driven, microservices development We've partnered with one of the UK's most exciting … contribute to new platform initiatives, and accelerate your path to seniority. They're building out high traffic, scalable, cloud-native, microservices using Python with FastAPI, gRPC GraphQL, AWS (EKS). You'd lead a rotating squad with exposure to multiple domains and technical challenges around developing complex, high volume, public ...

Senior+ Software Engineer - Python | FastAPI | AWS £90,000-120,000 + Bonus and Stock Flexible benefits | 90 day work-from-anywhere perk Python, FastAPI, gRPC, AWS Remote first or hybrid (London) InsurTech | high traffic, scalable, event-driven, microservices development We've partnered with one of the UK's most exciting … contribute to new platform initiatives, and accelerate your path to seniority. They're building out high traffic, scalable, cloud-native, microservices using Python with FastAPI, gRPC GraphQL, AWS (EKS). You'd lead a rotating squad with exposure to multiple domains and technical challenges around developing complex, high volume, public ...

Senior+ Software Engineer - Python | FastAPI | AWS £90,000-120,000 + Bonus and Stock Flexible benefits | 90 day work-from-anywhere perk Python, FastAPI, gRPC, AWS Remote first or hybrid (London) InsurTech | high traffic, scalable, event-driven, microservices development We've partnered with one of the UK's most exciting … contribute to new platform initiatives, and accelerate your path to seniority. They're building out high traffic, scalable, cloud-native, microservices using Python with FastAPI, gRPC GraphQL, AWS (EKS). You'd lead a rotating squad with exposure to multiple domains and technical challenges around developing complex, high volume, public ...

Senior+ Software Engineer - Python | FastAPI | AWS £90,000-120,000 + Bonus and Stock Flexible benefits | 90 day work-from-anywhere perk Python, FastAPI, gRPC, AWS Remote first or hybrid (London) InsurTech | high traffic, scalable, event-driven, microservices development We've partnered with one of the UK's most exciting … contribute to new platform initiatives, and accelerate your path to seniority. They're building out high traffic, scalable, cloud-native, microservices using Python with FastAPI, gRPC GraphQL, AWS (EKS). You'd lead a rotating squad with exposure to multiple domains and technical challenges around developing complex, high volume, public ...

Senior+ Software Engineer - Python | FastAPI | AWS £90,000-120,000 + Bonus and Stock Flexible benefits | 90 day work-from-anywhere perk Python, FastAPI, gRPC, AWS Remote first or hybrid (London) InsurTech | high traffic, scalable, event-driven, microservices development We've partnered with one of the UK's most exciting … contribute to new platform initiatives, and accelerate your path to seniority. They're building out high traffic, scalable, cloud-native, microservices using Python with FastAPI, gRPC GraphQL, AWS (EKS). You'd lead a rotating squad with exposure to multiple domains and technical challenges around developing complex, high volume, public ...

Senior+ Software Engineer - Python | FastAPI | AWS £90,000-120,000 + Bonus and Stock Flexible benefits | 90 day work-from-anywhere perk Python, FastAPI, gRPC, AWS Remote first or hybrid (London) InsurTech | high traffic, scalable, event-driven, microservices development We've partnered with one of the UK's most exciting … contribute to new platform initiatives, and accelerate your path to seniority. They're building out high traffic, scalable, cloud-native, microservices using Python with FastAPI, gRPC GraphQL, AWS (EKS). You'd lead a rotating squad with exposure to multiple domains and technical challenges around developing complex, high volume, public ...

Senior+ Software Engineer - Python | FastAPI | AWS £90,000-120,000 + Bonus and Stock Flexible benefits | 90 day work-from-anywhere perk Python, FastAPI, gRPC, AWS Remote first or hybrid (London) InsurTech | high traffic, scalable, event-driven, microservices development We've partnered with one of the UK's most exciting … contribute to new platform initiatives, and accelerate your path to seniority. They're building out high traffic, scalable, cloud-native, microservices using Python with FastAPI, gRPC GraphQL, AWS (EKS). You'd lead a rotating squad with exposure to multiple domains and technical challenges around developing complex, high volume, public ...

Senior+ Software Engineer - Python | FastAPI | AWS £90,000-120,000 + Bonus and Stock Flexible benefits | 90 day work-from-anywhere perk Python, FastAPI, gRPC, AWS Remote first or hybrid (London) InsurTech | high traffic, scalable, event-driven, microservices development We've partnered with one of the UK's most exciting … contribute to new platform initiatives, and accelerate your path to seniority. They're building out high traffic, scalable, cloud-native, microservices using Python with FastAPI, gRPC GraphQL, AWS (EKS). You'd lead a rotating squad with exposure to multiple domains and technical challenges around developing complex, high volume, public ...

Senior+ Software Engineer - Python | FastAPI | AWS £90,000-120,000 + Bonus and Stock Flexible benefits | 90 day work-from-anywhere perk Python, FastAPI, gRPC, AWS Remote first or hybrid (London) InsurTech | high traffic, scalable, event-driven, microservices development We've partnered with one of the UK's most exciting … contribute to new platform initiatives, and accelerate your path to seniority. They're building out high traffic, scalable, cloud-native, microservices using Python with FastAPI, gRPC GraphQL, AWS (EKS). You'd lead a rotating squad with exposure to multiple domains and technical challenges around developing complex, high volume, public ...

Senior+ Software Engineer - Python | FastAPI | AWS £90,000-120,000 + Bonus and Stock Flexible benefits | 90 day work-from-anywhere perk Python, FastAPI, gRPC, AWS Remote first or hybrid (London) InsurTech | high traffic, scalable, event-driven, microservices development We've partnered with one of the UK's most exciting … contribute to new platform initiatives, and accelerate your path to seniority. They're building out high traffic, scalable, cloud-native, microservices using Python with FastAPI, gRPC GraphQL, AWS (EKS). You'd lead a rotating squad with exposure to multiple domains and technical challenges around developing complex, high volume, public ...

Senior+ Software Engineer - Python | FastAPI | AWS £90,000-120,000 + Bonus and Stock Flexible benefits | 90 day work-from-anywhere perk Python, FastAPI, gRPC, AWS Remote first or hybrid (London) InsurTech | high traffic, scalable, event-driven, microservices development We've partnered with one of the UK's most exciting … contribute to new platform initiatives, and accelerate your path to seniority. They're building out high traffic, scalable, cloud-native, microservices using Python with FastAPI, gRPC GraphQL, AWS (EKS). You'd lead a rotating squad with exposure to multiple domains and technical challenges around developing complex, high volume, public ...

Technical Lead | Product Technical Lead | Tech Lead | Product Manager | AI/Data Science | Python | FastAPI | SaaS | Hybrid 2 days a week | Central London | £85,000 + 15% bonus I am currently working with a brilliant consultancy with deep expertise in their field of Data and Cyber Security solutions, predominantly with … fullest. Key skills Strong software engineering skills, delivering end-to-end software products. Highly product orientated. Highly skilled in Python development, with knowledge of FastAPI framework. Good databases knowledge with schema design and SQL. Some front-end development preferably TypeScript & React is highly desirable. Experience of designing scalable systems ...

product and engineering direction, you'll fit right in. What you'll work on Designing and building backend systems using Python and frameworks like FastAPI, or similar. Creating reliable, scalable architecture for real-time decisioning systems. Implementing caching, queuing, load balancing, and distributed processing. Shipping high-quality code quickly … closely with the founding group to define engineering culture, processes, and standards. What we're looking for Strong backend engineering experience Python. Experience with FastAPI, Django, Flask, or related frameworks. Confidence designing system architecture from scratch and making pragmatic trade-offs. Comfort working in ambiguous, high-autonomy environments. A bias ...

Senior Data Engineer (Python, FastAPI, GCP) | Series C Scale-up | $100m raise in 2025 | Permanent | London (1 day a week on-site) | £100,000 - £105,000 + Equity My client are a fast-scaling SaaS scale-up (Series C, $100m raised in 2025) that is redefining how global powerhouses operate. … data team scales. Remote-first culture – flexibility to work from anywhere What you'll be doing: API strategy & development – own and scale FastAPI endpoints that deliver real-time access to platform data. Data pipeline development – build ingestion and replication pipelines with best-in-class observability, latency, and resilience. Platform technical ...

data team scales. Remote-first culture – flexibility to work from anywhere What you'll be doing: API strategy & development – own and scale FastAPI endpoints that deliver real-time access to platform data. Data pipeline development – build ingestion and replication pipelines with best-in-class observability, latency, and resilience. Platform technical … with engineers, product managers, and commercial teams to deliver production-grade solutions. Tech stack and requirements: Python – must-have, with production-grade engineering expertise FastAPI – Nice to have Google Cloud Platform (GCP) – must-have, ie BigQuery, Cloud Run, and Cloud Storage dbt – strong advantage, with scope to shape best practice ...

AI Engineer Hybrid Working - UK Wide - 2 days a week on site. Financial Services Lorien's leading banking client is looking for an additional AI Engineer join the existing team on a expanding project. This ...