14 of 14 SQLAlchemy Jobs in London

Back-End Developer (Python | Application Development)

Hiring Organisation
Venquis
Location
London, UK
Employment Type
Full-time
native developmentExperience with RESTful API design and frameworks such as FastAPI, Flask, or DjangoProficient in working with relational databases (PostgreSQL, MySQL) and ORMs (e.g., SQLAlchemy)Familiarity with Docker, container orchestration, and infrastructure-as-code (e.g., Terraform or CloudFormation)Solid understanding of software engineering best practices, including version control, testing ...

Full-Stack Engineer

Location
Greater London, England, United Kingdom
features in production. Strong TypeScript and React. Strong Python backend experience with FastAPI or Django in production. Strong PostgreSQL data modelling and SQL, using SQLAlchemy and Alembic, the Django ORM or similar. Have built authentication and access control in a multi-tenant B2B product. Experience with AWS or a comparable ...

Senior Backend Engineer

Location
Greater London, England, 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 ...

Back End Developer

Location
Greater London, England, United Kingdom
services and contracts You design REST and asynchronous services in Python 3.11+ and FastAPI, working at Java/Spring boundaries with PostgreSQL and async SQLAlchemy persistence. You implement tenant isolation, context, role-based access and configuration. You version and evolve contracts between core and AI services without breaking consumers. ...

Engineering Team Lead | Tech | London, UK

Location
City of Westminster, England, United Kingdom
long-term scalable architecture - including hardening AI features against risks such as prompt injection and unbounded model behaviour Desirable Criteria: Experience with FastAPI, async SQLAlchemy, and/or Node/Express Experience with React/TypeScript front-end development Experience with LangChain, LangGraph, or other multi-agent/LLM orchestration ...

Infrastructure Developer

Hiring Organisation
Ncounter
Location
London, UK
Employment Type
Full-time
Working closely with infrastructure, platform, security and application engineering teams We are particularly interested in engineers with: Strong commercial Python software development experience FastAPI, SQLAlchemy, Pydantic and PostgreSQL exposure Excellent REST API design and systems integration knowledge Experience modelling complex infrastructure or configuration data Knowledge across at least two areas ...

Founding Engineer

Location
Greater London, England, United Kingdom
What we look for Exceptional applied engineer with genuine full-stack capability and a backend leaning. Production experience with Python, FastAPI, asynchronous systems, Celery, SQLAlchemy and Alembic. Experience building APIs, data pipelines and cloud-native software. Comfortable integrating LLMs, coding models, LangChain, RAG, agentic systems and model evaluations. Experience with ...

Principal Engineer (Platform Architecture)

Location
Greater London, England, United Kingdom
expert in every tool listed below, but you should have strong experience with most of them or equivalent technologies. Core Languages & Frameworks Python (Flask, SQLAlchemy, NumPy, Pandas) for services and analytics React, Typescript, Redux for the front end Cloud & Infrastructure AWS (ECS, Lambda, RDS, S3) Docker Linux Data, Messaging & Caching ...

Bi Developer - Oracle Analytics

Hiring Organisation
Randstad Digital
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £505 per day
Build interactive OAS dashboards, analyses, and BI Publisher data models, layouts, bursting, and automated schedules. Python Automation: Design production-grade Python scripts (pandas, oracledb, SQLAlchemy, openpyxl, etc.) to replace Access macros, automate extraction, and deliver automated report packs. Testing & Delivery: Conduct parallel runs, complete data reconciliation, establish rollback plans ...

BI Architect - Oracle Analytics & Access

Hiring Organisation
Randstad Digital
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £505 per day
Build interactive OAS dashboards, analyses, and BI Publisher data models, layouts, bursting, and automated schedules. Python Automation: Design production-grade Python scripts (pandas, oracledb, SQLAlchemy, openpyxl, etc.) to replace Access macros, automate extraction, and deliver automated report packs. Testing & Delivery: Conduct parallel runs, complete data reconciliation, establish rollback plans ...

Lead Python Developer

Location
Greater London, England, United Kingdom
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, communicate clearly ...

Senior Python Backend Engineer – Fintech API Systems

Location
Greater London, England, United Kingdom
team. You will help build and evolve the backend systems powering our wealth platform, designing secure, scalable APIs and internal tools using Python, FastAPI, SQLAlchemy, and related technologies. Collaborate with cross-functional teams, own complex problems, and deliver production-ready code with strong emphasis on maintainability, observability, and reliability. #J ...

AI Developer for Learning Products

Location
Greater London, England, United Kingdom
products (professional, freelance or substantial personal projects). Hands-on experience with Python and FastAPI, or a similar Python web framework. Experience with PostgreSQL, SQLAlchemy and Alembic, or an equivalent ORM and migration workflow. You have built server-rendered pages with Jinja2 or a similar templating engine. Proficient building with ...

Python Software Engineer

Location
Greater London, England, United Kingdom
responsibility, and thrives in a collaborative, supportive team where real impact is encouraged. Skills & Experience Job roles: Back End Core skills considered: Python, FastAPI, SQLAlchemy, Pandas, Numpy What You’ll Be Doing Design, build, and maintain APIs, backend services, and internal systems that support both client-facing features and operational … reviews, technical discussions, and shared team practices Mentor peers and help grow a high-trust, high-impact engineering culture Python 3.x with FastAPI, Pydantic, SQLAlchemy, Pandas, and NumPy Relational databases: MySQL and PostgreSQL GCP experience is a plus, but not required Modern Middleware is a plus – e.g. Pub/ ...