25 of 25 Flask Jobs in London

Senior Developer

Hiring Organisation
Reed.co.uk
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 per annum
lead role. Proven expertise in full-stack development using: TypeScript (and JavaScript frameworks such as NextJS, Node, or Tailwind) Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimization, and maintenance. AI Development Tools such as Windsurf, Aider or Augment. Demonstrable experience building and scaling SaaS ...

Senior Python Developer

Hiring Organisation
TreasurySpring
Location
City of London, London, United Kingdom
/CD Strong STEM degree or equivalent professional experience Desirable skills: Deep knowledge of Python, including any of the frameworks we currently use: Flask, SqlAlchemy, Alembic, Pydantic Experience with relational databases, ideally Postgres Experience of message-based architectures, and queuing technologies, i.e. RabbitMQ Experience of REST and/or GraphQL ...

Senior Full Stack Developer

Hiring Organisation
Glite Tech
Location
City of London, London, United Kingdom
building scalable mobile APIs (REST, HTTPS, etc.). Good principles of security management (secrets, protocols, etc.). Experience with some Python web frameworks (Django, Flask, FastAPI, etc.). Desirable Skills 👌 Can speak, or learning to speak, more than one language Experience with real-time and/or in-memory databases ...

Front Office Python Developer

Hiring Organisation
Harrington Starr
Location
City of London, London, United Kingdom
What They’re Looking For Strong Python backend development experience in production environments (at least2 years) Experience building APIs using frameworks such as FastAPI, Flask or Django Good knowledge of at least one Python-compatible frontend framework Strong experience with AWS services and cloud-native development Understanding of event-driven ...

Senior Backend Engineer

Hiring Organisation
Omnis Partners
Location
City of London, London, United Kingdom
within the team. 🔧 What they’re looking for • 5+ years backend engineering experience building production-scale systems. • Strong Python experience (FastAPI/Django/Flask). • Deep PostgreSQL expertise (schema design, indexing, query optimisation). • Strong understanding of distributed systems and microservices architecture. • Experience with Redis, caching strategies, and async ...

Senior Full Stack Developer - 2 days a week in London - £60-80k

Hiring Organisation
Oliver Bernard
Location
City of London, London, United Kingdom
decisions, delivery, and continuous improvement of engineering practices. Key Responsibilities Design and deliver scalable, secure web applications Build backend services using Python (e.g. FastAPI, Flask, or Django) Develop modern frontend applications using React and TypeScript Design and maintain RESTful APIs 5+ years’ experience as a full-stack developer AI & Modern ...

Contract Full Stack Engineer (Commodities)

Hiring Organisation
X4 Technology
Location
City of London, Greater London, UK
Full Stack Engineer (Commodities) Strong frontend development experience with React and TypeScript Advanced Python expertise including OOP, async programming, and frameworks such as FastAPI, Flask, or Django Proven experience building and integrating RESTful and GraphQL APIs Understanding of Backend-for-Frontend (BFF) architecture patterns Experience optimising low-latency, high-throughput ...

Developer

Hiring Organisation
The Flash Pack
Location
London, UK
important. Essential Skills/requirements Solid full-stack experience, comfortable across modern JavaScript frameworks (Vue, React or similar) and Python web backends (FastAPI, Flask, Django or similar). Strong understanding of RESTful APIs, WebSockets and handling live data updates in the UI. Working knowledge of databases (MongoDB, Postgres or similar ...

Python Developer

Hiring Organisation
Digisourced
Location
City of London, London, United Kingdom
manage cloud cost-efficiency. Collaborate: Drive quality through TDD and Pair Programming within an Agile framework. Key Requirements: Languages/Frameworks: Python (Django, FastAPI, Flask). AWS Ecosystem: Lambda, S3, RDS, DynamoDB, VPC, Step Functions. API Design: RESTful, GraphQL, AppSync. IaC: Terraform or AWS CDK. CI/CD: GitLab Cloud ...

Sr Python Developer

Hiring Organisation
Ampstek
Location
City of London, London, United Kingdom
with ability to handle complex queries and large datasets • Experience with Python libraries (Pandas, NumPy) for data processing • Experience building RESTful APIs/services (Flask/FastAPI/Django) • Strong understanding of data structures and performance optimization • Experience working with large-scale data processing and performance optimization • Working knowledge ...

Sr Python Developer – Trading / Risk Platforms

Hiring Organisation
Crisil
Location
London Area, United Kingdom
with ability to handle complex queries and large datasets Experience with Python libraries (Pandas, NumPy) for data processing Experience building RESTful APIs/services (Flask/FastAPI/Django) Strong understanding of data structures and performance optimization Experience working with large-scale data processing and performance optimization Working knowledge ...

Senior Software Engineer

Hiring Organisation
Wave Group
Location
London, UK
senior IC, running code reviews, mentoring engineers, and getting involved early in research and experimentation, not just building to spec. The stack Python (FastAPI, Flask, strong typing, Pydantic) PostgreSQL AWS (Lambda serverless + ECS/Docker) Internal dev platform with standardised CI/CD pipelines Feature flags and automated preview ...

Python AI Engineer - PropTech - London (onsite)

Hiring Organisation
Transparent Technology
Location
London, United Kingdom
Employment Type
Permanent
engineering practices and mentoring other developers in a high-growth environment. You'll be responsible for architecting and building Python-based systems (FastAPI, Django, Flask), developing and optimising data pipelines, and ensuring systems are scalable, secure, and performant. You'll collaborate closely with product, AI, and design teams to translate ...

Senior Software Engineer

Hiring Organisation
Techmunity
Location
City of London, London, United Kingdom
work directly with customers, investigate real incidents, and contribute to how the platform evolves architecturally - and you'll ship multiple times Stack: Python/Flask/FastAPI, React/TypeScript, GCP/AWS/Terraform. £120,000–£170,000 base depending on level, plus equity. Benefits include Visa sponsorship, Health ...

Full Stack Engineer

Hiring Organisation
SR2 | Socially Responsible Recruitment | Certified B Corporation™
Location
City of London, London, United Kingdom
technical decisions as the platform evolves and scales Owning meaningful parts of the product rather than small isolated tickets Tech stack Backend: Python (FastAPI, Flask, or Django experience beneficial), Postgres Frontend: TypeScript, Vue 3 Cloud: Azure, GCP, or AWS experience a bonus You do not need to match this exactly. ...

Engineering Manager

Hiring Organisation
trg.recruitment
Location
London Area, United Kingdom
modularity, clean APIs, versioning PostgreSQL, ORMs, migrations, and performance optimisation Experience building developer platforms, multi-tenant systems, or public APIs Python (FastAPI/Flask), Docker, GitHub Actions, Cloud Run, CI/CD, containers Clear communicator across engineers, product managers, and senior stakeholders ...

Engineering Manager

Hiring Organisation
Total Recruitment Group
Location
South West London, London, United Kingdom
Employment Type
Permanent
modularity, clean APIs, versioning PostgreSQL, ORMs, migrations, and performance optimisation Experience building developer platforms, multi-tenant systems, or public APIs Python (FastAPI/Flask), Docker, GitHub Actions, Cloud Run, CI/CD, containers Clear communicator across engineers, product managers, and senior stakeholders ...

Senior Software Engineer

Hiring Organisation
SR2 | Socially Responsible Recruitment | Certified B Corporation™
Location
City of London, London, United Kingdom
Hybrid | Tech4Good Location: London (hybrid, minimum 2 days in office) Salary: £80,000 - £90,000 + shares + benefits Tech stack: Python (Django or Flask or FastAPI) - considering Engineers with a strong background in web development from any backend language React AWS This is a role built around ownership ...

Lead Python Engineer

Hiring Organisation
DeepRec.ai
Location
London Area, United Kingdom
deliver features end to end Key requirements: 4 to 8 years software engineering experience Strong Python backend skills, APIs, and frameworks such as FastAPI, Flask, or Django Experience building production systems in a startup or fast-paced environment Familiarity with cloud platforms such as AWS, GCP, or Azure Exposure ...

Senior Software Engineer (Python/React)

Hiring Organisation
Oliver Bernard
Location
City of London, London, United Kingdom
160k 🚀🧠 💰 Salary: £70,000 - £160,000 + meaningful equity 🏙️ Location : London, flexible working arrangements, ideally 2/3 days in office 💻 Tech Stack : Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) Our y-combinator backend client are building an elite engineering team within the AI space. The platform is being ...

Python Full-Stack Developer

Hiring Organisation
Crisil
Location
City of London, London, United Kingdom
Python Full Stack Developer Requirements Develop highly scalable applications in Core Python. Hands-on with Python web frameworks such as Django, Flask, or FastAPI. Experience working on SQL with ability to run various data analytics tasks and queries. Exposure to Java script technologies (preferably React) Exposure to Azure Databricks environment … desirable Qualifications 8+ years of prior experience as a developer in the required technologies CORE TECHNOLOGIES Scripting : Python, SQL, Bash, PySpark Web frameworks: Django, Flask, or FastAPI. Frontend Technologies: ReactJS, Java Script Azure : Azure Databricks, Azure Synapse Analytics, Azure Functions, Azure Data Lake Storage Gen2, Azure Event Grid, Azure Event ...

Senior Backend Engineer Python

Hiring Organisation
Partnerscale Limited
Location
South East London, London, United Kingdom
Employment Type
Permanent
Salary
£55,000
andmaintainAPIintegrations,datapipelines,andinternaltoolingthatconnectmarketingplatforms,analyticsservices,andclientsystems. So,whowouldsuitthisrole? Asharp,adaptablebackenddeveloperwithcommercialPython,Node.jsorsimilarexperiencewhowantstoworkonvaried,technicallyinterestingprojectsforwell-knownbrands.Youwillbeconfidentworkingacrossthefulllifecycleofanintegration:readingAPIdocs,scopingthework,writingcleantestedcode,anddeployingtoproduction. Keyrequirements: ProfessionalPythonorNode.jsdevelopmentexperience Strongexperienceconsumingandintegratingthird-partyAPIs(REST,OAuth2.0,webhooks) ProvenexperienceauthoringAPIsusingframeworkssuchasFastAPI,Flask,orDjangoRESTFramework Comfortablewithrelationaldatabases(PostgreSQLpreferred)andwritingefficientSQL ExperiencewithGitandcollaborativedevelopmentworkflows Self-motivatedandcomfortableworkingautonomouslyinaremote-firstenvironment Whattheyoffer: Remote-firstwithoccasionalLondontravelforteamcollaborationandclientvisits 25daysannualleaveplusbankholidays 5%employerpensioncontribution Acollaborative,low-egoteamthatvaluesqualityengineeringandcontinuouslearning Autonomyandownershipoveryourwork Exposuretoawidevarietyoftechnologies,platforms,andclientchallenges Thisisagreatopportunityforamid-levelPythondeveloperwhowantstoworkatthecuttingedgeofAI-poweredmarketingandwebdevelopment,buildingproductsthathaverealcommercialimpactforbrandseveryoneknows. ...

Full Stack Engineer

Hiring Organisation
Oliver Bernard
Location
London Area, United Kingdom
Salary: £60,000 - £85,000 + meaningful equity 🏙️ Location : London, flexible working arrangements, ideally 2/3 days in office 💻 Tech Stack : Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) Our y-combinator backend client are building an elite engineering team within the AI space. The platform is being used ...

Prinicpal Software Engineer

Hiring Organisation
Understanding Recruitment
Location
London Area, United Kingdom
just implement them Setting technical direction and raising engineering standards within a small team What They’re Looking For: Strong Python experience (FastAPI, Django, Flask etc) Track record of owning or significantly evolving production systems Experience making architectural decisions and working across the full lifecycle Comfortable operating in a smaller ...

Senior Data Engineer

Hiring Organisation
Lynx Recruitment Limited
Location
South West London, London, United Kingdom
Employment Type
Permanent
Salary
£80,000
Senior DataEngineer-RemoteWorking LynxarecurrentlyworkingwithalargeITconsultancytohelpthemsourceaDataEngineer.OurclientislargeglobalConsultancywhoworkwithenterpriseclients,solvingtheirbusinessandtechnologyproblemsusingcuttingedgesolutions. Asa DataEngineer ,youwillplayakeyroleindesigning,building,andmaintainingrobustdataplatformsandpipelines.Youllworkalongsidedatascientists,analysts,andengineerstoensurereliable,scalable,andhigh-qualitydatasolutions. Whatyoullbedoing: Designingandbuildingdatapipelines,models,andarchitectures DevelopingandmaintainingETL/ELTprocessesusingmoderntools Implementingdatastoragesolutionsacrossrelational,non-relational,andcloudplatforms Ensuringdataquality,reliability,andoperationalexcellence Leadingthedesignanddeliveryofnewdataproductsandpipelines Collaboratingcloselywithstakeholdersandtechnicalteams Providingtechnicalleadershipandmentoringwithindeliveryteams Whattherelookingfor: Strongexperienceindataengineeringroles Provenleadershiporlinemanagementexperience ...