Senior Python Developer Pythonawsreact Jobs in London, UK

Professional job seekers finding United Kingdom jobs through Expertini
750,000+ professionals on Expertini 750,000+ Candidates
Join our global community
Expertini Penguin Mascot Resume Score™
Resume Score™ Instantly
Upload Your CV
Quick 30-second process

Apply Today & Jumpstart Your Career on Expertini, Trusted Since 2008.

Reset

Create Job Alert

 
   
Reset

Senior Data Scientist, Experimentation & A/B Testing

A global travel technology company is seeking a Data Scientist III for its Experimentation Science team. The role involves leading the development of advanced statistical methodologies for their experimentation platform and collaborating closely with engineers to enhance testing frameworks. Candidates should hol ...

Senior Applied AI Engineer Autonomous Agent Architect

A leading financial services firm is seeking an AI Engineer to design, build, and deploy autonomous AI agents that streamline workflows. You will collaborate across teams to translate needs into robust multi-agent systems, leveraging cutting-edge frameworks. Candidates should possess an advanced degree in a rele ...

Elite DevOps & SRE Engineer Hybrid London

A leading fintech firm in London is seeking a DevOps/Site Reliability Engineer to join its elite team. This role involves hands-on engineering, improving large-scale infrastructure, and automating tasks with Python. Candidates should have 2-15 years of Linux experience and familiarity with CI/CD, Docker, Kuberne ...

Data Scientist: NLP & Forecasting for Wine Market

A leading wine data platform is seeking a Data Scientist to develop machine learning systems that empower their wine exchange. You'll tackle complex challenges in NLP and recommendation systems while building production-grade solutions. This role focuses on designing models, maintaining recommendations, and deve ...

Security Testing Practice Lead

A leading cybersecurity firm in London is looking for a Security Testing Practice Lead to manage and develop their security testing practice. This hybrid role involves hands-on technical delivery, strategic practice management, and operational efficiency. The ideal candidate will have strong leadership skills in ...

Staff Data Scientist: Population Health AI Leader

A leading health AI company is seeking a Staff Data Scientist to shape AI-driven population health management. The role requires 8+ years of data science experience, proven leadership in applied research, and expert-level proficiency in Python. You will collaborate closely with Product, Engineering, and Clinical ...

Senior Full Stack Engineer: Build Secure, Scalable Identity

A leading technology company based in the UK is seeking a skilled software engineer to join their team. The successful candidate will work on building and maintaining scalable systems using TypeScript and frameworks like React, as well as backend technologies such as Kotlin, Python, and Ruby. Responsibilities in ...

Data Scientist: Forecasting, Churn & Insights (Hybrid)

A leading food and beverage company in Greater London is seeking a Data Scientist to enhance their statistical modeling capabilities. The successful candidate will collaborate with various teams to drive order forecasting and optimize customer engagement through data-driven insights. With 2-4 years of experience ...

Hybrid Senior Modelling Engineer — Run Training Algorithms

A leading fitness technology firm based in Greater London is seeking a Software Engineer with expertise in Python to join their Train Team. You will be responsible for building and delivering innovative training features, leveraging data-driven approaches, and coaching fellow engineers. The role offers a competi ...

Detection Engineer: Automation & SOAR for Cloud & Endpoints

A leading financial technology firm in London is looking for a Security Engineer specializing in Detection Engineering and Security Automation. You will develop high-fidelity detections and automate workflows across platforms like Rapid7, SentinelOne, and CrowdStrike using Azure Logic Apps. The ideal candidate w ...

Healthcare AI Lead Scientist: Strategy & ML Leadership

A forward-thinking technology firm is seeking a Lead Data Scientist to architect and deliver advanced AI solutions. This role involves technical leadership, mentoring a small team, and collaborating with clients to solve complex challenges in the healthcare sector. Candidates should possess a strong background i ...

Lead Data Scientist: Pricing & ML Ops, Hybrid + Equity

A leading insurance technology company in Greater London is seeking a Lead Data Scientist to build and scale innovative risk models. The role involves working closely with teams to streamline workflows, mentor other data scientists, and establish best coding practices. A strong background in insurance pricing, a ...

Clinical NLP Engineer — Production ML & OCR

A developing health-tech startup in Greater London is seeking an experienced NLP Engineer to join their Applied AI team. This hands-on engineering role focuses on building and maintaining NLP systems that address healthcare document processing needs. The candidate should have at least 2 years of experience in ap ...

Product Owner, Strategic Market Intelligence (Insurance)

A leading reinsurance consulting firm is seeking a Product Owner for its Strategic Advisory team in Greater London. This role involves driving the development of data-driven products that provide insights into insurance markets. Ideal candidates will have experience in the insurance domain, managing digital prod ...

Strategic Insights Manager – Data Driven Change

A leading media company is looking for a skilled data analyst in Greater London. The ideal candidate will have a strong background in data extraction and analysis with proven problem-solving skills. Responsibilities include working with various departments to influence business decisions, leading change initiati ...

Head of AI Operations & Automation for B2B SaaS

A leading SaaS platform in the UK property market is seeking a Head of AI Operations to spearhead automation efforts. The role entails developing an Internal AI Roadmap, deploying AI-enabled workflows across multiple platforms, and leading a cultural shift towards AI adoption. Candidates must possess deep expert ...

Quantitative Derivatives Researcher — Models & Risk

A global financial services provider in Greater London seeks a candidate to join its Global Quantitative Research team. In this role, you will develop and support quantitative models and systems with a focus on derivatives. The ideal candidate should have an MSc or PhD in a relevant field, experience in financia ...

London Equity ETF Portfolio Engineer – Index Investing

A leading global asset management firm seeks an Equity Portfolio Manager/Engineer to manage index equity portfolios and enhance trading strategies. The role demands strong knowledge in financial products, portfolio construction, and risk management. Ideal candidates will have a Bachelor's degree and proficiency ...

Global FX Strategy & Automation Lead

A progressive financial service company in London is seeking a Treasury FX Manager to lead the evolution of their global FX strategy. This role involves designing automated execution environments, developing external relationships for efficient pricing, and implementing data-driven FX hedging strategies. The ide ...

Junior Data Scientist — AI & Analytics for Government

A leading consulting firm in Greater London is seeking a Junior Data Scientist to support client analytics and AI-driven solutions. The role involves working with multidisciplinary teams and gaining experience across the data science lifecycle, with responsibilities including data analysis, model development, an ...

AI Hardware Verification Engineer Early Career

A pioneering AI company based in the UK is looking for a Silicon Verification Engineer to join their innovative team. This role involves collaborating across multiple disciplines to ensure the highest standards of functional quality in RTL releases. Candidates should have strong software skills, preferably in Py ...

ML Systems & Performance Fellow — Research & Mentorship

A leading AI research organization is offering a 4-month fellowship titled 'Anthropic Fellows Program'. This position involves full-time research with mentorship from seasoned scientists. Candidates will design experiments, engage in research discussions, and produce deliverables such as research papers. Fluent ...

Clinical NLP Engineer Hybrid (London)

A cutting-edge AI company is seeking an experienced NLP Engineer to join their Applied AI team in London. This role involves designing and maintaining NLP pipelines for clinical document processing, training and evaluating models, and integrating LLM components into production systems. The position offers a hybr ...

Senior ML Scientist, Borrowing (Remote‑Friendly & Stock Options)

A pioneering financial institution in the UK is looking for a Borrowing ML Scientist to enhance automated decisioning through machine learning. You will have the autonomy to develop models across various lending products while collaborating with teams to align your work with strategic objectives. The role offers ...

Remote Senior Systems Engineer, Cloud Emulation

A progressive cloud development platform is seeking a Systems Engineer in London to enhance their cutting-edge technology. The role requires over 5 years of experience in systems engineering and a strong foundation in container-based systems. Candidates should possess proficiency in programming languages like Py ...

Solutions Architect: Scalable, Impactful Tech Solutions

A leading financial services provider in London is seeking a Solutions Architect who will engage with clients to translate their data needs into effective solutions. The ideal candidate should have a solid understanding of data ingress, egress, basic programming skills including Python, and an interest in transl ...

Security Solutions Architect Hybrid/Remote, Threat Hunting

A global cybersecurity firm in Greater London seeks a Solutions Architect for a 14-month fixed-term role to drive customer outcomes. You'll design data visualizations, create custom scripting solutions, and collaborate with stakeholders to enhance network security. Ideal candidates will possess 6-8 years of cybe ...

Production ML Engineer Life Sciences, Hybrid

A leading AI solutions firm in London is seeking a Machine Learning Engineer to deliver impactful AI solutions for diverse clients. You will build and deploy production-grade ML software while collaborating with cross-functional teams to solve critical challenges. This role requires strong Python expertise, unde ...

Staff ML Engineer: LLMs for Legal AI, Visa Sponsored

A leading software company in the UK is looking for a Staff ML Engineer to lead the development of large language models for legal applications. You'll design ML architectures, manage training and fine-tuning of models, and mentor a team of engineers. The role requires expertise in Python and machine learning fr ...

Hybrid Quantum ML Research Engineer – London

A leading technology company in Greater London is seeking a Machine Learning Research Engineer. In this role, you will advance machine learning methods with cutting-edge quantum processors and collaborate with clients on innovative solutions. You are expected to have expertise in developing machine learning algo ...

AR ML Engineer Intern Summer 2026 (London)

A leading technology company in the UK seeks a Machine Learning Engineering Intern for its Spectacles AR team. The 13-week internship will involve projects on scene understanding and computer vision, utilizing skills in Python and deep learning frameworks. Candidates should be enrolled in a technical degree prog ...

ML Engineer: Scalable AI Pipelines

A leading technology firm in Greater London seeks a Machine Learning Engineer to develop and optimize advanced AI systems. You'll be responsible for building efficient pipelines and collaborating with cross-disciplinary teams. The ideal candidate will have an MSc or PhD in Machine Learning or a related field, st ...

AR ML Engineer Intern Spectacles Team (Summer 2026)

A leading technology company in Greater London is seeking a Machine Learning Engineering Intern for the Spectacles AR team. This 13-week internship offers hands-on experience in developing and evaluating machine learning models focused on AR experiences. Ideal candidates will be pursuing a degree in a technical ...

ALM Quant Strategist – Analytics & Risk Insights

A financial services company in Greater London is seeking a Quant Strategist to enhance its ALM quantitative toolkit. This role involves maintaining the ALM Quant Platform, collaborating with investment teams, and developing robust models for decision-making. The ideal candidate will possess strong numerical ski ...

ML Engineer Spacetime Networking & AI Orchestration

A technology innovator in the UK is seeking an experienced machine learning engineer for a hybrid role in their Spacetime team. This position requires a deep understanding of machine learning algorithms and effective communication skills. Key responsibilities include researching algorithms, developing training i ...

Backend Focused Product Engineer — Build, Ship, Impact

A leading AI startup in London is looking for a Product Engineer who is customer-focused and passionate about software development. The role involves leading product design and development with a primary focus on backend technologies using Python, AWS, and serverless frameworks. The ideal candidate is an ambitio ...

Staff ML Engineer Simulation & Fleet Evaluation

A leading autonomous technology firm in London is seeking a Staff Machine Learning Engineer specializing in simulation. In this role, you'll lead the development of cutting-edge machine learning models, improve workflows, and evaluate performance of the company's fleet. Ideal candidates will have a B.S. in relev ...

Data Engineering Consultant — Databricks & BI Solutions

A leading Data Management consultancy is seeking skilled professionals to join their team. This role involves delivering innovative data solutions and optimizing data pipelines within Databricks environments. Candidates should excel in data management, engineering, and analytics while demonstrating strong progra ...

London based Catastrophe Risk Scientist

A leading catastrophe science firm in London is seeking a motivated technical specialist to join their Catastrophe Research team. The role involves performing advanced model evaluations, engaging with the latest scientific research, and effectively presenting results to diverse audiences. The ideal candidate hol ...

Associate Product Engineer AI Driven Growth, Hybrid UK

A leading software security company is seeking an Associate Product Engineer to enhance our AI-native security platform. This hybrid role focuses on engineering customer feedback, automating processes, and driving product-led growth via innovative coding. The ideal candidate holds a recent degree in Computer Sci ...

Autonomy & Edge ML Computer Vision Engineer

A space-tech start-up in London seeks an experienced Computer Vision Engineer to contribute to autonomous vision-based satellite navigation solutions. The candidate will handle AI/ML software development, integrating software with hardware, and testing in a robotics lab. Ideal candidates will thrive in a dynamic ...

Onsite AI Deployment Engineer (Metals)

A technology firm in the metals industry is seeking a Forward Deployed Engineer. This role involves on-site customer engagement to identify problems and design solutions across the tech stack. Candidates should possess a Bachelor's degree in Engineering or related fields, with strong programming skills in langua ...

Senior Data Platform Engineer (Trading Systems)

A leading Investment Manager in the UK is seeking an experienced Software Engineer for an initial 6-month role that could lead to permanent employment. The position involves working within a core engineering team to develop and enhance data and infrastructure platforms supporting systematic trading strategies. T ...

Senior Software Engineer, Global Payments Platform

A global payments technology leader is looking for skilled software engineers to join their team in London. Applicants should have over three years of experience in engineering complex software systems. The role emphasizes collaboration and innovation in creating solutions that impact millions. The ideal candida ...

Senior Software Engineer Remote Supplier Data Platform

A leading product experience company in Greater London is seeking an experienced full-stack engineer to drive product development and enhance supplier relationships. The role focuses on building solutions using technologies like Python and TypeScript, emphasizing user needs and collaboration with customers. The ...

FinCrime Data Scientist: Fraud & Risk Analytics

A fintech company in London is looking for a Risk Analyst/Data Scientist to enhance their Financial Crime detection efforts. You will utilize advanced analytics, SQL, and Python to influence risk-based decision-making and mitigate fraud losses. This hybrid role mandates collaboration with various stakeholders an ...

Senior ML Platform Test Engineer & Automation Lead

A leading technology firm in Greater London seeks an experienced Software Engineer to design and build tools for validating ML data pipelines. Applicants should have over 8 years of software development experience with a focus on Python and AWS services. Responsibilities include developing automation frameworks ...

AI First Senior Software Engineer — Scale & Architecture

An innovative technology company in Greater London is looking for a Software Engineer with at least 5 years of experience. The role focuses on designing AI-first software, collaborating with teams, and leading architectural decisions. Candidates should be proficient in TypeScript and Python, and passionate about ...

Production Ready Data Scientist for Marketing Analytics

A leading data consultancy in Greater London is looking for a pragmatic Data Scientist to translate business challenges into data-driven solutions. In this hands-on role, you will develop predictive models and implement machine learning solutions to enhance marketing and customer experience outcomes. Qualified c ...

Senior Django Engineer — Data Driven, Scalable Platform

A global fashion shopping platform is seeking a new engineer to join their Product Listings squad. The role involves developing new product features and maintaining product data and marketing systems. Collaboration with engineers, designers, and product managers is key to driving technical innovations. Candidate ...

🚀 Boost Your Hiring Chances with Our AI-Powered Tool-Kit

Stand out from thousands of applicants. Use our proven career tools to optimize your applications and land your dream job faster.

To-Do Planner

Organize your job search and personal tasks. All data is confidential.

Open Planner

Wellbeing Center

Access your confidential wellness report and resources to manage job search stress.

Check Wellbeing

Skill Coach

Plan your skill development with O*NET support to stay competitive in your field.

Start Coaching

Outfit Helper

Get AI-powered suggestions on what to wear for your next interview.

Find Outfit

Income Tax Calculator

Plan your finances with our calculator, updated for 2025 tax regulations.

Calculate Tax

Salary Benchmark

Get accurate, AI-supported salary trends to know your worth and negotiate better.

Check Salaries

Interview Practice

Practice for any interview with AI-enabled Q&A sessions. All data is private.

Start Practicing

Interview Predictor

Use our AI-supported tool to predict potential interview questions based on your resume.

Predict Questions

Interview Practice Timer

Use our mock interview trainer to perfect your answers under timed conditions.

Start Timer

Behavioral Mastery

Ace tricky behavioral interviews with our AI-powered practice module.

Master Answers

Question Journal

Confidentially record interview questions you were asked for future reference.

Open Journal

Interview Ace

A comprehensive tool to help you master every aspect of your interviews.

Become an Ace

Q&A Logs

Confidentially track your answers to common questions and refine them over time.

View Logs

Application Planner

Schedule and organize your job applications in one confidential planner.

Open Planner

Cover Letter Tool

Create perfect, tailored cover letters for each application with AI support.

Generate Letter

Resume Score

Get instant feedback on your resume with our NLP-supported analysis tool.

Check My Score

ATS Score

Check your resume's compatibility with Applicant Tracking Systems (ATS).

Check ATS Score

Application Analyzer

Use AI to analyze job descriptions and optimize your application materials.

Analyze Application

Career Visualizer

Confidentially plan and visualize your long-term career path and goals.

Visualize My Career

Offer Genius

Get intelligent insights and strategies to confidently negotiate job offers.

Negotiate Offers

JobFlow

Track your entire job search progress from application to offer with this intelligent tool.

Track My Flow

JobSense

Our intelligent matching engine that provides smart job recommendations.

Get Smart Matches

Networking Toolkit

Tools to build and manage your professional connections. All data is confidential.

Build Network

Professional CV

A classic, O*NET supported template for corporate and professional roles.

Use This Template

Executive CV

A premium, O*NET supported template designed for senior and C-level positions.

Use This Template

Modern CV

A fresh, stylish, O*NET supported template perfect for tech and modern industries.

Use This Template

Creative CV

A visually distinct, O*NET supported template for design and artistic roles.

Use This Template

Minimalist CV

A clean, simple, O*NET supported template that focuses purely on content.

Use This Template

Europass CV

The standard European Union recommended format for wide compatibility.

Use This Template

Student CV

An institution-recommended template perfect for internships and first jobs.

Use This Template

Graduate CV

An institution-recommended template for recent graduates entering the workforce.

Use This Template

Academic CV

The researcher-recommended format for roles in academia and research.

Use This Template

Developer/IT CV

A tech-savvy recommended template to highlight your technical skills.

Use This Template

Skilled Worker CV

A trades-recommended template to showcase hands-on skills and experience.

Use This Template

Monochrome CV

A sleek, black-and-white, O*NET supported template for a professional look.

Use This Template

Art CV

An artist-recommended template that allows your creativity to shine.

Use This Template

Harvard CV

A researcher-recommended template based on the classic Harvard format.

Use This Template

Volunteer Research

Help us improve our platform by joining our community research program.

Join Research

Review Us

Share your experience with our tools to help other job seekers.

Share Experience

Register

Create your free account to save jobs, build your profile, and track applications.

Create Account

Login

Access your dashboard, manage applications, and continue your job search.

Access Your Account

Profile Builder

Create a comprehensive professional profile that attracts recruiters and showcases your skills.

Build Your Profile

View Profile

See your public profile exactly as employers will see it. Make sure it's perfect.

Preview Profile

Bookmarked Jobs

Keep track of all your saved job opportunities in one organized place.

View Saved Jobs

Your Reviews

View and manage all the company reviews you've submitted.

See Your Reviews

Following

Manage the list of companies you follow to stay updated on their new openings.

Manage Following

Find Companies

Discover and research top employers in your country and industry.

Discover Employers

Standalone CV Builder

Use our O*NET supported CV builder to create a professional resume from scratch.

Build Your CV

PDF to DOC (Beta)

Convert your PDF resumes or documents into editable Word (DOC) format.

Convert PDF

DOC to PDF (Beta)

Create universally compatible PDF documents from your Word (DOC) files.

Create PDF

General FAQ

Find answers to common questions about our job site and platform.

Read FAQ

Job Seekers FAQ

Get help and find answers to questions specifically for job seekers.

Get Help

Job Matching

Learn about the technology and algorithms behind how we match you to jobs.

Learn How

Personalized Matching

Discover how we use your profile and activity to provide customized job suggestions.

Learn More

Quick Apply

Understand our fast application process and how to make the most of it.

Learn More

Alert Frequency

Learn how to manage your job alert settings so you get the updates you want.

Manage Settings

Job Alerts Guide

A complete guide to understanding how job alerts work and how to use them effectively.

Read Guide

Resume Matching

Learn how our system matches your resume to job requirements.

Learn More

Ethical Branding

Read our guide to building a professional and ethical personal brand.

Read Guide

Candidate Visibility

Learn how to increase your visibility to recruiters on our platform.

Increase Visibility

Verified Badge

Find out how you can get a verified badge to build trust with employers.

Get Verified

AI ATS Technology

Learn about the advanced AI and ATS technology that powers our platform.

Learn More

ATS Ranking

Understand how Applicant Tracking Systems rank you as an applicant.

Learn More

Semantic Matching

Learn how our AI-powered semantic matching goes beyond keywords.

Learn More

    Senior Python Developer Pythonawsreact Jobs in London Job Search Guide, Trends and Insights