126 to 150 of 179 Remote/Hybrid FastAPI Jobs

Senior Software Engineer - POS Systems (Remote Europe)

Location
Liverpool, England, United Kingdom
seeking a Senior Software Engineer to join the POS team. You will work across the React Native/Expo mobile app, the Python/FastAPI backend, and the AWS/Kubernetes infrastructure to build a scalable, offline-capable POS experience for hospitality properties. You'll own end-to-end aspects ...

Senior Software Engineer (Payments)

Location
Greater London, England, United Kingdom
expect you to know all of this on day one, but you should be excited to work with: Languages/Frameworks: Python, Django, FastAPI What We Offer Competitive salary and benefits package Discretionary performance-based bonus A truly dynamic, global environment with massive scale and exposure Continued personal development through ...

Senior Backend Engineer

Location
Greater London, England, United Kingdom
later iterations Able to work and intervene on the whole life cycle of the software Tech Stack: Kotlin with Spring Boot & Python with FastAPI What to Expect from Our Hiring Process At Plum, we value a lot the time you devote to the hiring process, this ...

Senior Backend Engineer

Location
Greater London, England, United Kingdom
point to what changed because of your work, that's a flag. The right technical toolkit. Strong Python, hands-on experience with FastAPI, Postgres, ElasticSearch, RabbitMQ, Redis, message queues, and distributed systems, or close enough that the gaps close fast. Domain curiosity, not just technical ability. You go deep ...

Lead Software Engineer Python API

Hiring Organisation
Client Server
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 Annual
Lead Software Engineer/Developer (Python FastAPI Azure Databricks) London/WFH to £110k Are you a backend focused Software Engineer with strong Python skills combined with technical/team leadership experience? You could be progressing your career in a senior, hands-on role at a fast growing, global Insurance ...

Senior Backend Engineer - AI-Driven Finance APIs (Remote)

Location
Greater London, England, United Kingdom
Ersilia in London is seeking a Senior Backend Engineer to build production Python backends (FastAPI) powering AI features for professional investors. You will own APIs, design orchestration for agentic workflows, and work with PostgreSQL and ClickHouse, shipping features from sketch to live production. The team is small and highly impactful ...

Full-Stack Engineer - Hybrid, API & Data Platform Focus

Location
Greater London, England, United Kingdom
global debt markets. A Backend/Full-stack engineer is sought to design systems, build APIs, and advance data processing within our Python stack (FastAPI/Flask) on a hybrid UK-based team. You will develop backend services, contribute to a broad range of platforms and collaborate with cross-functional ...

Lead Python Developer

Location
Greater London, England, United Kingdom
scaling business Knowledge of FCA compliance/Financial Services/regulated environment preferred Highly motivated to learn about Fundment’s products Technical Expertise: Python: FastAPI, Pydantic, SQLAlchemy, PyTest, Pandas, Numpy Cloud: Experience supporting production systems Security & Compliance: Familiar with secure coding and regulated environments Values Collaborative – Deliver as a team ...

Product Engineer

Location
United Kingdom
home office equipment 25 days off a year + national holidays Healthcare cover depending on location Oh and before we forget: Backend Stack: Python (FastAPI), Go, PostgreSQL, Google Cloud Platform (Cloud Run, GKE, Cloud BigTable, etc), Temporal Cloud Frontend Stack: TypeScript, Next.js API docs are here: https://docs.junction.com ...

Technical Lead

Hiring Organisation
Develop
Location
Central London, London, United Kingdom
Employment Type
Permanent
LLMs, RAG, agents and model APIs. Take AI ideas from rapid prototypes through to reliable production systems. Work across Python, React/TypeScript, Django, FastAPI, PostgreSQL and AWS. Improve architecture, engineering standards and delivery practices. Work closely with product, business and engineering stakeholders to solve complex problems. Mentor and support … engineers through pairing, reviews and technical guidance. Make pragmatic decisions around scalability, security, reliability and maintainability. Technology Python | React | TypeScript | Django | FastAPI | PostgreSQL | AWS | Docker | REST APIs | CI/CD | Git AI experience across LLMs, RAG, agentic workflows, embeddings, prompt design or model evaluation is particularly valuable. What Theyre Looking ...

Experienced Product Engineer - Full Stack

Location
Greater London, England, United Kingdom
required) Key Responsibilities On the backend, you will design, build and maintain scalable services and RESTful/GraphQL APIs using Python with Django or FastAPI, writing clean, well-tested, production-grade code with a focus on reliability and performance. You will design and implement data models working with PostgreSQL … more years, in software engineering with a strong track record of delivering production systems. You have backend proficiency in Python with Django or FastAPI, strong frontend experience with React and TypeScript including component architecture, state management and modern tooling, and a solid understanding of relational databases, PostgreSQL preferred, covering schema ...

Experienced Product Engineer - Full Stack

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
required) Key Responsibilities On the backend, you will design, build and maintain scalable services and RESTful/GraphQL APIs using Python with Django or FastAPI, writing clean, well-tested, production-grade code with a focus on reliability and performance. You will design and implement data models working with PostgreSQL … more years, in software engineering with a strong track record of delivering production systems. You have backend proficiency in Python with Django or FastAPI, strong frontend experience with React and TypeScript including component architecture, state management and modern tooling, and a solid understanding of relational databases, PostgreSQL preferred, covering schema ...

Senior Backend Engineer

Location
Greater London, England, United Kingdom
ensure OneSuite’s backend systems are scalable, reliable, secure, and performant. Responsibilities Backend Architecture & System Design Architect distributed backend services and APIs using Python, FastAPI, Node.js, or equivalent frameworks. Design modular, observable, and scalable backend components for orchestration, data services, and platform integrations. Define patterns for microservices, domain boundaries, caching … decisions across charters to ensure consistency and maintainability. Qualifications Demonstrable backend engineering experience, with architectural ownership over services or distributed systems. Expertise in Python, FastAPI, Flask, or Node.js and modern backend development patterns. Strong understanding of microservices, concurrency, async programming, and event‐driven architectures. Proficiency with SQL and NoSQL databases ...

Senior Backend Engineer

Hiring Organisation
Publicis Media
Location
London, United Kingdom
Salary
£ 70 K
multiple charters to ensure OneSuite’s backend systems are scalable, reliable, secure, and performant.ResponsibilitiesBackend Architecture & System DesignArchitect distributed backend services and APIs using Python, FastAPI, Node.js, or equivalent frameworks.Design modular, observable, and scalable backend components for orchestration, data services, and platform integrations.Define patterns for microservices, domain boundaries, caching, queuing, resiliency … backend capabilities.Align architecture decisions across charters to ensure consistency and maintainability.QualificationsDemonstrable backend engineering experience, with architectural ownership over services or distributed systems.Expertise in Python, FastAPI, Flask, or Node.js and modern backend development patterns.Strong understanding of microservices, concurrency, async programming, and event-driven architectures.Proficiency with SQL and NoSQL databases (PostgreSQL, DynamoDB ...

Senior Software Engineer

Location
Greater London, England, United Kingdom
Software Engineer on the POS team, you'll work directly across the core POS codebase: the React Native and Expo application, the Python and FastAPI backend service, the Terraform infrastructure, and the Argo CD and Helm deployment configuration. You'll design, build, deploy, and operate the next generation of Cloudbeds … using SQLite, write-ahead logging, synchronization, retry, and conflict‐handling patterns so properties can continue operating during connectivity issues Build and operate Python/FastAPI backend services that support authentication, staff and device workflows, menus, orders, payments, receipts, and hotel‐system integrations Design reliable APIs, data models, caching, synchronization ...

Senior Python Data Modelling Specialist – Hybrid (Glasgow)

Location
Glasgow, Scotland, United Kingdom
blends Python development, data modelling and governance to support enterprise data, risk and regulatory needs. You will design scalable data models, work with Pydantic, FastAPI, Collibra and REST APIs, and contribute to data quality, lineage and metadata management while collaborating with stakeholders across #J-18808-Ljbffr ...

Senior Backend Engineer — Scalable APIs & Systems

Location
Greater London, England, United Kingdom
write production-grade code, solve distributed systems challenges, and collaborate with cross-functional teams. The ideal candidate has expertise in Python and frameworks like FastAPI or Node.js, as well as CI/CD experience. This role supports hybrid working, offering excellent benefits including wellness days and flexible working arrangements. #J ...

Senior POS Engineer - Remote (Europe)

Location
York and North Yorkshire, England, United Kingdom
seeking a Senior Software Engineer for our POS team. You will work across the core POS stack including React Native, Expo, Python/FastAPI backend, Terraform infra, Argo CD and Helm deployment configurations. You will own end-to-end delivery, from code to production reliability, on a completely remote team ...

Engineering Team Lead | Tech | London, UK

Location
City of Westminster, England, United Kingdom
Virtual Personas Delivery of the Product roadmap Managing a team consisting of a range of skillsets and experience Full stack development, across Python/FastAPI services and React/TypeScript front ends Continuously improving the team's processes for iterative development, including embedding automated testing and CI quality gates into … encouraging our developers Conducting regular 121's, setting objectives and assisting with tailored development plans Our engineering environment includes technologies such as Python (FastAPI), LangChain/LangGraph for multi-agent LLM orchestration, React/TypeScript, PostgreSQL, MongoDB, Redis, Azure (App Service, Container Registry, Blob Storage), Docker, GitHub Actions, and modern ...

AI Engineer

Hiring Organisation
IFS
Location
London, United Kingdom
Salary
£ 80 K
state machines to validate logic)Fullstack Product EngineeringBuild end‐to‐end product features spanning:Backend services (Python/TypeScript)APIs (REST/GraphQL/FastAPI)Frontend experiences (React)Create human‐in‐the‐loop interfaces for AI systems (review, override, explainability)Collaborate closely with Product and Design to ship usable, explainable … heavy domainsBackground in data engineering or ML platformsExperience building developer tools or internal platformsExposure to regulated or security‐conscious environmentsTech StackBackend: Python (Django/FastAPI), TypeScript (Node.js)Frontend: ReactAI: LLMs, RAG pipelines, agent frameworksInfra: Cloud (AWS/GCP), Docker, CI/CD, IaCData: SQL, event‐driven systems, analytics pipelinesAdditional InformationWe ...

Lead AI Software Engineer

Hiring Organisation
Wells Fargo
Location
London, United Kingdom
Salary
£ 80 K
enterprise UI standards and reusable component patterns. Build and maintain Python backend services, APIs, MCP services, and integration layers using frameworks such as MCP, FastAPI & Flask. Design, implement, and integrate with MCP servers and MCP clients that enable secure context sharing between models, tools, applications, and agent runtimes. Develop … combination of the following: work experience, training, military experience, educationStrong proficiency in Python with experience building services using frameworks such as Fast MCP, FastAPI & Flask. Experience developing and integrating with REST APIs, asynchronous services, and event-driven architectures. Experience integrating with AI, LLM-based systems, agent platforms, or AI APIs. ...

Senior Fullstack Developer

Hiring Organisation
Version 1
Location
Belfast, Down, United Kingdom
Salary
£ 60 K
Company DescriptionVersion 1 has celebrated over 29 years in Technology Services and continues to be trusted by global brands to deliver solutions that drive customer success. Our expertise enables our customers to navigate the rapidly ...

Senior Fullstack Developer

Hiring Organisation
Version 1
Location
Edinburgh, Midlothian, United Kingdom
Salary
£ 70 K
Company DescriptionVersion 1 has celebrated over 29 years in Technology Services and continues to be trusted by global brands to deliver solutions that drive customer success. Our expertise enables our customers to navigate the rapidly ...

Senior Fullstack Developer

Hiring Organisation
Version 1
Location
Manchester, Greater Manchester, United Kingdom
Salary
£ 70 K
Company DescriptionVersion 1 has celebrated over 29 years in Technology Services and continues to be trusted by global brands to deliver solutions that drive customer success. Our expertise enables our customers to navigate the rapidly ...

Senior Fullstack Developer

Hiring Organisation
Version 1
Location
London, United Kingdom
Salary
£ 80 K
Company DescriptionVersion 1 has celebrated over 29 years in Technology Services and continues to be trusted by global brands to deliver solutions that drive customer success. Our expertise enables our customers to navigate the rapidly ...