276 to 300 of 311 Python Jobs in the City of London

tuning generative models. This isn't just a 'high-level' role-we need someone who can design the blueprint and then dive into the Python/PySpark code to ensure the foundation is rock solid. Key Responsibilities: Architect & Design: Lead the implementation of on-premises, cloud, and hybrid AI solutions. … Developer Associate) certification. AI Specialization: Proven experience with Prompt Engineering, Azure OpenAI, Document Intelligence (Form Recognizer), and Cognitive Search. Data Engineering: Expert proficiency in Python and PySpark for large-scale data processing. Operations: Familiarity with MLOps or LLMOps frameworks to support production-grade AI. Seniority: 15+ years of total ...

growing part of the product Experience with Hotwire (Turbo & Stimulus) and Tailwind CSS Familiarity with background job processing (Sidekiq, Delayed Job, etc.) Experience with Python and FastAPI - our data pipeline and some supporting services are built in Python, and you'd be expected to maintain and contribute to these alongside … cloud infrastructure and deployment platforms Experience working in a startup or high-growth environment Our Stack Backend: Ruby on Rails, PostgreSQL, Sidekiq Data & Services: Python, FastAPI Frontend: Hotwire (Turbo Stimulus), Tailwind CSS, Three.js Infrastructure: Render Tooling: GitHub Actions, Sentry About Resi Resi is the UK’s number one home extension ...

scale technology change and transformation programs within investment banking. The role requires a blend of functional risk knowledge, data analysis and technical understanding (including Python) . Key Responsibilities Work on risk transformation programs (Market Risk/CCR/FRTB) across technology and business teams Gather and document business and functional … requirements for risk systems and reporting Translate requirements into detailed functional specifications and data mappings Perform data analysis and validation using SQL/Python for risk and trade datasets Support implementation of regulatory changes (e.g., FRTB) across systems and processes Collaborate with technology teams, quants and stakeholders to drive delivery ...

that support critical services across the ecosystem. What You’ll Be Working On Designing and delivering scalable APIs and microservices Building backend systems using Python + AWS (Lambda, API Gateway, S3, DynamoDB) Handling event-driven architectures (Kafka, SNS/SQS, etc.) Driving system design decisions across distributed systems Improving observability … reliability, and performance in production Debugging complex issues and leading resolution across teams Staying hands-on while setting technical direction and standards Tech Stack Python AWS (Lambda, API Gateway, S3, DynamoDB, IAM) Event-driven systems (Kafka, SNS/SQS) CI/CD (Concourse, Git workflows) Databases (Postgres, DynamoDB, Couchbase) Observability ...

Build and deploy production ML models used in live decision-making Work on customer prediction problems including pricing, forecasting, and segmentation Develop models using Python and SQL on large-scale datasets Own the full model lifecycle from data extraction to deployment and monitoring Collaborate with Product and commercial teams … Candidate Profile 1–2 years industry experience as a Data Scientist Strong academics ( Russell Group or equivalent , STEM degree) Experience building ML models in Python and SQL Background in customer prediction (pricing, forecasting, segmentation) or credit risk Curious, high-energy problem solver with strong ownership mindset Key Details Salary ...

technically steer engineering teams, manage senior stakeholder relationships, and deliver production-ready Generative AI capabilities. The ideal candidate must be heavily hands-on with Python and Azure , possessing a proven track record of designing and deploying Retrieval-Augmented Generation (RAG) patterns. Key Responsibilities Architect & Govern: Design and implement robust … systems utilising Prompt Engineering, Vector Databases, Azure OpenAI, and Cognitive Search. Data Pipelines: Oversee large-scale data processing and AI data engineering pipelines using Python and PySpark. Leadership & Stakeholder Management: Guide and mentor engineering teams while confidently managing client relationships to secure consensus on complex technical architectures. Essential Skills Clearance ...

delivery of scalable, resilient infrastructure across a complex global environment. Key Responsibilities Designing and implementing network automation solutions Developing and maintaining automation tools using Python, Ansible, and Terraform Supporting network transformation and infrastructure modernisation Collaborating with architects on new implementations Providing 3rd line support across network environments Working across cloud … premise infrastructure Enhancing network security and performance About You Strong experience in network automation and engineering Proficiency in Python, Ansible, and Terraform Solid networking background (routing, switching, firewalls) Experience with Cisco technologies (CCNP/CCIE desirable) Knowledge of cloud platforms (Azure preferred) Exposure to SD-WAN, load balancing ...

production, rather than just building transformations in isolation. What you’ll be doing: Building and maintaining production-grade data pipelines in Python Onboarding and integrating new data sources Designing and optimising transformations using a modern columnar stack Owning data quality, monitoring/alerting, reruns/backfills and operational robustness Working … closely with a small team in an environment where you can genuinely influence how things are built What they’re looking for: Strong Python and SQL Hands-on experience with Polars, Parquet and/or Arrow/PyArrow Experience owning pipelines in production end-to-end A strong engineering mindset ...

complex data landscapes and building workflows that support better decision making. The role is end to end. That means data engineering in Palantir Foundry, Python and PySpark, through to user-facing applications in TypeScript or React, and embedding AI workflows using AIP Logic and AIP Analysts. You will have ownership … architected, working iteratively to build, demo, and refine based on client feedback. Who They Are Looking For Fluency in one or more of Python, SQL, TypeScript or React, with the ability to pick up others Solid grounding in data engineering, ETL pipelines and application development Familiarity with Palantir (Foundry, Gotham ...

through to production operations Design secure, scalable, and highly reliable infrastructure services Help shape technical direction and engineering standards across the platform Work across Python, Go, and TypeScript — choosing the right tool for the job Improve observability, reliability, and operational excellence across critical systems Collaborate closely with engineers, security … experience building and running production systems on AWS Deep familiarity with services like Lambda, DynamoDB, S3, EC2, SQS, EventBridge, CloudWatch, and Route 53 Excellent Python skills, plus experience with Go for high-performance tooling or services Experience with infrastructure-as-code using Terraform and/or CloudFormation Strong systems design ...

layers Improving system robustness through automation and observability Collaborating with platform and security teams on access, secrets, and compliance Engineering rigor Writing production-grade Python used in long-running services and pipelines Establishing testing, validation, and release practices for ML systems Making trade-offs explicit between research flexibility and production … stability Required Qualifications 37 years of professional experience in ML Ops, Data Engineering, or adjacent backend roles Strong production Python skills (clean APIs, testing, performance awareness) Experience deploying and operating ML models in production environments Solid understanding of: Model training vs. inference requirements Batch vs. streaming data pipelines Failure modes ...

Software Engineer | Full Stack Engineer | Senior Software Engineer 🌍 Climate Tech Startup Scaling Real-World Carbon Removal 💰 Up to £95,000 + Equity 💻 C#, React, Python, Azure 📍 Hybrid/Flexible | London Waterloo We’re partnered with one of the most interesting climate tech startups in the UK right now, a company … event-driven architectures Use AI tooling heavily but thoughtfully within their development workflow Thrive within fast-moving startup environments Tech stack includes: C# React Python Azure Event-driven systems and cloud infrastructure Why it’s interesting: Mission-driven engineering with real-world impact Complex technical challenges beyond standard SaaS products ...

next generation of educational technology. Role Responsibilities Build and maintain features across our web app (Next.js) and mobile app (React Native) Contribute to our Python backend and help improve API performance Collaborate on database design and write efficient queries in Postgres Work with AWS services to deploy and maintain … year of professional experience Familiarity with JavaScript and Next.js (React or React Native experience is a plus) Basic knowledge of Python Understanding of SQL and relational databases Eagerness to learn cloud services (AWS experience is a plus but not required) Ideal Candidate Quality Focus: Obsessive attention to detail and commitment ...

roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition language in building your … programming and development foundation. Python is a highly versatile programming language and due to its relatively “easy to understand” commands now one of the most common programming languages used. You can use it for both small and complex tasks, and it is used across many different industries broadening your scope ...

setting direction, maintaining standards, and driving output Designing and delivering data solutions across platforms, including low/no-code tooling and code-based approaches (Python, PySpark, SQL) Overseeing the development of user-facing applications and workflows using TypeScript and React Acting as the primary client interface, shaping requirements and translating … sharing and capability uplift Ideal Background 6+ years’ experience in software engineering, data engineering, or full-stack development Strong proficiency across multiple languages, including Python and SQL, with exposure to TypeScript and/or React Deep understanding of data engineering principles, including ETL pipelines, distributed processing, and data architecture Experience ...

DevOps Engineer (Python) Contract: 6-month contract - likely to extend Location: Hybrid - 3 days per week onsite Start: ASAP Overview: As a DevOps Engineer, you’ll play a crucial part in maintaining operations and stabilising existing Python-based tools. Your work will focus on completing and configuring tools, writing … stability and resolving production issues takes priority over developing new platforms or designing from scratch. What you'll do: Finalise and configure partially completed Python automation tools. Write, maintain, and enhance Python automation scripts. Automate deployment and implement operational workflows and recovery processes. Build and automate system health checks ...

Role: Lead Python Engineer (Hands-on Team Lead) 📍 Location: London – Hybrid (3 days office/2 days WFH) 💰 Salary: Up to 130k base 🏦 Industry: Fintech Platform We’re working with a profitable, high-growth UK fintech building a platform used by wealth and advisory firms to manage investment accounts, portfolios … product platform — both in terms of scale and functionality . As a result, they’re growing the engineering team and looking for a Lead Python Engineer to take ownership of a core part of the platform. The Role This is a hands-on technical leadership role (50-70% hands ...

London location – 3-5 days on site p/week Up to £80k DoE plus bonuses Active MoD DV clearance required Experience required in Python, SQL, and ideally Palantir Overview Our client is a secure-sector SME consultancy based in Central London who are looking to bring an experienced Security … consultancy, and wants exposure to modern data platforms and tooling. Required Skills & Experience Proven commercial experience as a Data Engineer Strong development skills in Python Advanced SQL skills with experience working on complex datasets Experience with core data engineering tools and technologies (e.g. ETL/ELT pipelines, data warehouses, orchestration ...

data team. Key Responsibilities Build and maintain scalable data pipelines (full ETL lifecycle) Perform data cleaning, transformation, and integration Work with Microsoft Fabric, Notebooks, Python, and PySpark Manage and develop solutions using SQL Server and Cosmos DB Handle multiple data formats and support data processing workflows Collaborate closely with Data … Engineering and Business Intelligence teams across onshore and offshore locations Requirements Proven experience as a Data Engineer Strong skills in Python, PySpark, and Microsoft Fabric Experience with SQL Server and Cosmos DB Ability to design and deliver ETL pipelines Comfortable working in high-pressure environments Desirable Insurance industry experience (ideally ...

from tick-by-tick market data Serving high-quality data to large-scale backtesting and research platforms Building and maintaining tick data pipelines in Python to enable fast, reliable access across asset classes Designing, implementing, and monitoring robust data quality frameworks across all pipelines Your skillset: Strong knowledge of multiple … tick data Solid understanding of market structure (e.g., NBBO rules, secondary markets, dark pools) Familiarity with exchange protocols is a strong plus Strong Python skills with experience using data libraries; C++ is a plus ...

mentoring junior team members. Key Requirements: • Security Clearance eligibility (SC) is essential • Hybrid working, typically 2–3 days per week on client site • Strong Python skills, including experience with data analysis, modelling and automation • Experience working within or alongside public‐sector organisations is highly desirable What You’ll Do: • Deliver … data governance and ethical guidelines What You’ll Bring: • Proven experience as a data scientist in complex or public‐sector environments • Strong proficiency in Python and common data science libraries (Pandas, NumPy, Sci‐Kit Learn, etc.) • Experience with data visualisation tools and techniques • Ability to communicate complex concepts clearly ...

while ensuring the frontend experience is world-class. You’ll: Build & Own: Lead the development of new features across the entire stack (Node/Python, React, and Postgres). AI Integration: Design and build the interfaces and APIs that allow our users to interact seamlessly with LLMs and conversational agents. … ground up as we grow. What We’re Looking For The Full Stack: Strong experience with modern frontend frameworks (React) and backend environments (Node.js, Python, or similar). Startup DNA: You are comfortable in a fast-moving, seed-stage environment where you often have to figure things out from scratch. ...

Founding AI Engineer | Python, LLMs, RAG | VC-Backed PropTech Rebuilding How People Rent and Buy Salary: £100,000 - £120,000 + equity Location: London (Hoxton) – 5 days/week in-office I’m working with a very early-stage AI company that’s taking a proper swing at the property … manual processes. They’re building something that handles tenant communication, operations, compliance and transactions through AI agents instead. What They're Looking For Python FastAPI LLMs (production systems) AI agent frameworks (LangGraph or similar) RAG pipelines Postgres Redis Async processing and queuing (Celery, RabbitMQ, SQS) Event-driven architecture CI/ ...

will have a software engineering background who is now an AI Engineer working with LLMs You will: Design and build LLM-powered applications Develop Python-based microservices Build AI agents and workflows Integrate models into production systems Work on multiple client projects Lead delivery on some engagements Review code … mentor engineers Requirements: At least 3 years enterprise experience Proficiency in LLM integration into applications, deployment and product ionisation Proficiency with python Having built microservices If you are interested in this or other AI Engineering positions, please contact Gilad Sabari @ gilad.sabari@xcede.com ...

will have a software engineering background who is now an AI Engineer working with LLMs You will: Design and build LLM-powered applications Develop Python-based microservices Build AI agents and workflows Integrate models into production systems Work on multiple client projects Lead delivery on some engagements Review code … mentor engineers Requirements: At least 3 years enterprise experience Proficiency in LLM integration into applications, deployment and product ionisation Proficiency with python Having built microservices If you are interested in this or other AI Engineering positions, please contact Gilad Sabari @ gilad.sabari@xcede.com ...