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 Platform Engineer: Data Platform & Orchestration

A leading digital experience platform is looking for a driven Senior Platform Engineer to join their Core Data Team in Greater London. In this role, you will lead the design, development, and deployment of scalable software solutions while collaborating with cross-functional teams. The ideal candidate will have ...

Senior Data Analytics Lead Hybrid, High Impact Insights

A global media and technology company is seeking a Senior Analyst to lead the analytics function in London. The role combines analytical expertise with team leadership, focusing on delivering high-impact commercial insights. Candidates should have advanced SQL and Python skills, along with experience in influenc ...

Senior ML Engineer Remote | End to End ML & Personalization

An innovative IT firm in Greater London is seeking a Senior Machine Learning Engineer to manage the full lifecycle of machine learning models. Your role will include designing, building, and deploying ML solutions that enhance user experience. You will lead algorithm design, conduct data analysis, and mentor tea ...

Senior Backend Engineer — Scale Green Energy Platforms

A leading energy supplier in Greater London is seeking a Senior Backend Engineer to join their team. This role requires extensive experience in backend development, particularly with Python and Django. The selected candidate will manage the full lifecycle of innovative projects that drive customer benefits in th ...

Senior ML Engineer – Production LLMs for Global Brands

A promising AI startup in London is seeking a Senior ML Engineer to design and implement production ML systems for high-profile clients. You will play a crucial role in transforming marketing operations through cutting-edge AI solutions. Ideal candidates possess 4-8 years of experience in ML system development, ...

Senior Software Engineer AI/Edge Backend (On site UK)

A leading AI company in Greater London is seeking a Senior Software Engineer to lead backend and edge/IoT engineering in their Defence business unit. The role requires strong experience in Python and a compiled language, along with robust DevOps skills. You'll collaborate with cross-functional teams to deliver h ...

Senior Agentic AI Engineer – Next Gen Commerce Platform

A tech-driven commerce company in Greater London is seeking a Senior AI Specialist to optimize AI-driven features across the commerce journey. This role involves working closely with various teams to design recommendation systems and improve conversational agents using data. The ideal candidate will bring over 5 ...

Senior Machine Learning Engineer

As a Senior ML Engineer at Robin AI, you'll build and deploy machine learning systems for legal document analysis and contract intelligence. You'll work on LLM fine-tuning, model evaluation, and production ML pipelines — helping transform how legal professionals work using AI. Skills Required </h3 ...

Remote Senior Backend Architect Multitenant & IAM

A tech-driven educational platform in the UK is seeking a Senior Backend Engineer to architect high-performance server-side applications. You will lead the evolution of multitenant infrastructure while collaborating with product management throughout the product lifecycle. Required qualifications include deep ex ...

Senior Structured Products Ops & Middle Office

A diversified global financial services platform is seeking a mid to senior operational support member for its Structured Product business. The role involves comprehensive support for OTC Derivatives while ensuring compliance with regulations and managing trade lifecycles. Candidates need 7 to 10 years of releva ...

Senior Data Scientist, Alt Data & Front‑Office Research

A leading investment management firm is seeking a Senior Data Scientist to collaborate with front-office teams in utilizing alternative and traditional data for research and alpha generation. The role requires 3-8 years of experience in a data science environment, strong skills in data wrangling, time-series ana ...

Senior Software Engineer, Unified Platform — Data Tools

A leading trading firm based in Greater London is seeking a Senior Software Engineer to join its Unified Platform team. The ideal candidate will have at least 2-3 years of platform-level software development experience, strong knowledge of Java or Python, and a passion for solving complex problems in financial m ...

Senior Research Engineer, Computer Vision & Biometrics

A biometric technology firm in Greater London seeks a Senior Research Engineer to lead research on computer vision and machine learning models. The role involves developing systems for facial verification and ensuring their robustness against security threats. The ideal candidate has 2-3 years of experience in m ...

Senior Conversational AI Research Engineer

An innovative AI technology company in Greater London is seeking a Senior Research Engineer. This role involves building industry-leading conversational AI models and taking them from idea to production. The position requires strong engineering skills to enhance AI capabilities, optimize user experience, and col ...

AI Driven Product Engineer for Legal Tech Platform

A pioneering legal services firm in Greater London is seeking a Product Engineer to join their founding engineering team. This role focuses on building client-facing platforms that enhance the legal experience through automation and intuitive design. The ideal candidate will have over three years of experience i ...

Senior Life Actuarial Consultant – Hybrid UK

A leading global consulting firm is seeking a Senior Consultant to join their Life Solutions Team. This role involves supporting UK life insurers across a range of actuarial topics such as modelling, reporting, and risk assessment. The ideal candidate will be a qualified actuary with strong skills in Excel and p ...

ML Engineer — Equity, 4‑Day Week, London Office

Digital Waffle in Greater London is seeking a Machine Learning Engineer to join their AI-driven start-up. You will design and deploy ML-powered features, work with Python and TypeScript, and fine-tune NLP models. This position offers a salary of £80,000 - £100,000, equity, and the chance to influence the technic ...

Senior/Principal Software Engineer Secure Cloud (SC/DV)

Gemba Advantage is seeking a Senior/Principal Software Engineer to design and deliver secure, scalable software solutions while working in small agile teams. The role requires active SC or DV clearance and entails championing modern engineering practices, shaping architectural direction, and influencing technica ...

Senior Software Engineer, Autonomous Behavior Planning

AeroVect Technologies Inc. is seeking an experienced Senior Software Engineer to design and implement behavior planning systems for autonomous vehicles. The ideal candidate will have a Master’s degree in Computer Science or Robotics and at least 3 years of industry experience. Proficiency in C++ and Python is es ...

Senior Catastrophe Risk Director Property & Research

A leading reinsurance firm in Greater London is seeking a senior catastrophe risk expert. In this role, you will be a trusted advisor to clients, leading research and evaluation of catastrophe models, and developing innovative risk management solutions. The ideal candidate will have a PhD in a relevant field, st ...

Senior MLOps Engineer – Flexible Hybrid, AI for SMEs

A leading fintech company is seeking a Senior Machine Learning Engineer to build and deploy innovative AI-powered financial tools for SMEs. The role involves delivering actionable insights and ensuring models are interpretable and trustworthy. Ideal candidates will have strong expertise in machine learning, NLP, ...

Senior AI Scientist – Plant Immunity & Gene Editing

Resurrect Bio in Greater London is seeking a Senior Scientist to assist in developing their FloraFold® AI prediction tool. This hybrid role offers £70-100k salary, share options, and a 10% annual bonus. The ideal candidate has a PhD in a relevant field, strong Python skills, and experience in computational resea ...

Senior Data Engineer, Unified Platform & Data Pipelines

DRW is seeking a Senior Data Engineer to join our Data Experience team in Greater London. In this role, you will manage and enhance data pipelines, ensuring the quality and stability of data. With over 7 years of experience in data technologies, you will work collaboratively to deliver data solutions that suppor ...

Senior Fixed Income Attribution Analyst — Insights & Modelling

Legal And General Group is seeking a Senior Attribution Analyst to join the Performance & Attribution team in Greater London. In this role, you will deliver high-quality attribution analysis to support various investment strategies while collaborating with colleagues across diverse teams. The ideal candidate sho ...

Senior ML Leader Visual Computing for Games (Hybrid)

PlayStation Network in Greater London is seeking a Lead or Senior Lead: Machine Learning to join the Visual Computing Group. This strategic role focuses on advancing game rendering and streaming through cutting-edge technology. The ideal candidate will manage a high-performance team, coordinate development, and ...

Senior Full Stack Engineer for AI/ML Prototyping (London)

Autodesk is seeking a highly skilled Senior Full Stack Software Engineer to join our London team. In this role, you will develop and maintain both backend and frontend applications while supporting machine learning and AI systems. You'll collaborate with research scientists and ML engineers to rapidly prototype ...

Senior Data Scientist – Risk Modelling (Hybrid/Remote)

ADLIB Recruitment | B Corp™ is seeking a Senior Data Scientist based in Greater London. This role focuses on building and enhancing risk models from scratch across multiple areas, including financial, credit, and climate risk. The ideal candidate will have solid experience in risk modeling, excellent programming ...

Senior Commercial FP&A Analyst | AI Driven Growth

A leading digital healthcare company in Greater London is hiring a Senior Financial Analyst to join their Commercial FP&A team. This role merges commercial strategy with technical execution, requiring strong analytical skills and experience in high-intensity environments. Responsibilities include analyzing perfo ...

Senior Product Security Engineer: Cloud & SDLC Champion

A global quantitative investment firm is seeking a Senior Product Security Engineer to enhance security across various tech systems, including cloud services and business applications. The role involves driving automated security processes, conducting assessments, and mentoring engineering teams. Candidates shou ...

Senior Algorithm Engineer – ML Driven Underwriting & Risk

A leading insurance technology firm in Greater London is seeking a Senior Algorithm Engineer to join their Algorithmic Underwriting team. In this role, you will design and enhance machine learning-enabled products for various insurance classes. You'll work at the intersection of technology and specialty insuranc ...

AI Driven Customer Support Data Science Lead

A leading fintech company seeks a Senior Data Science Manager to enhance customer support through innovative AI solutions. The role involves leading a team and collaborating across departments to implement data-driven strategies. Candidates should have over 7 years of experience in data science, with expertise i ...

Senior Data Engineer: Remote First, Azure Synapse & Fabric

A leading IT company in the United Kingdom is looking for a Senior Data Engineer to help shape data-driven transformation for clients. You will work with technologies such as Microsoft Azure Synapse and Power BI, delivering scalable data solutions. This customer-facing role requires experience with data integrat ...

Senior Software Engineer Backend

As a Senior Backend Engineer at OpenAI London, you'll work on the systems that power some of the world's most advanced AI products. You'll build scalable APIs, improve inference infrastructure, and collaborate with AI researchers to bring cutting‑edge models to millions of users. Skills Required </ ...

Senior Data Scientist & AI Team Lead (Hybrid)

A leading AI solutions provider in Greater London is seeking an experienced Senior Data Scientist to lead high-impact AI projects and drive technical direction. You will mentor team members, design robust software architectures, and ensure the delivery of innovative data science solutions. The role involves clos ...

Senior Property Data Architect Single Source of Truth

A leading investment data firm in the Greater London area is seeking a Senior Property Data SME to design and scale a consolidated property database. This role requires extensive experience in data management within real estate, focusing on integrating various datasets into a single source of truth. The ideal ca ...

Senior Backend Engineer Production Scale Microservices

A leading media and streaming company is seeking a Mid–Senior Backend Engineer to build and support APIs and microservices in production. The ideal candidate will have strong production exposure and experience with Python and AWS technologies. Responsibilities include developing backend systems, debugging real-t ...

Senior AI Engineer (London) — LLMs, RAG & Agents

A leading data & AI consultancy in London is seeking a Senior AI Engineer to design and build cutting-edge systems using LLMs. This role will involve implementing RAG architectures and taking AI concepts into real-world applications across industries such as financial services, energy, and healthcare. The ideal ...

Senior Data Scientist, SC Clearance | High Impact Gov Data

OB Collective is seeking experienced Data Scientists for senior roles in the Greater London area. The position involves designing end-to-end data science solutions for large-scale government programmes. Candidates should have 5+ years of experience, strong Python/Java skills, and a deep understanding of predicti ...

Front Office Risk Lead, Clearing & Markets

ICE Clear Europe Limited is searching for a Front Office Risk Manager to oversee and enhance risk management practices at a leading clearing house. Candidates should possess a Master's Degree in Mathematical Finance, alongside proven experience in risk management within financial markets. Key responsibilities in ...

Senior Software Engineer (AVP) – Global Finance Tech Lead

Citigroup Inc. is looking for a Senior Software Engineer to join its global technology team in Greater London. The role involves working on complex software solutions, collaborating with product teams, and contributing to a strong engineering culture. Candidates should have a Bachelor's degree in Computer Scienc ...

Emerging Discretionary Trader | Quant & Tech

Anson McCade is seeking recent graduates for the Junior Discretionary Trader position in the Greater London area. In this role, you'll support senior traders in managing daily portfolios, monitor risk, and assist in trade execution. You will collaborate across various asset classes including Equities and Commodi ...

Senior AI & Synthetic Data Scientist — Lead

Cint AB is seeking a Senior Data Scientist in Greater London. This role demands expertise in leading data science projects, particularly in developing advanced AI solutions like Large Language Models. You will collaborate with various teams to integrate statistical methodologies and AI capabilities. Candidates s ...

ML Enablement Lead Practical Data Science Coach

Cognizant Technology Solutions is seeking an ML Enablement Lead/Senior Applied Data Scientist in London. This role focuses on building machine learning capability within the business by supporting stakeholders new to ML. Responsibilities include coaching, mentoring, and guiding teams through the ML journey while ...

Senior Fixed Income Attribution Analyst — Insights & Modelling

Legal And General Group is seeking a Senior Attribution Analyst to join the Performance & Attribution team in Greater London. In this role, you will deliver high-quality attribution analysis to support various investment strategies while collaborating with colleagues across diverse teams. The ideal candidate sho ...

Head of Data Science & AI Strategy

Zempler Bank is seeking a Head of Data Science to drive the bank's data science vision and strategy from its London Bridge office. This senior leadership role encompasses overseeing machine-learning model development, ensuring compliance with regulatory standards, and leading a high-performing data science funct ...

Senior Data Engineer: Data & Analytics Platforms

IBM in Greater London is seeking a Senior Data Engineer for their Data & Analytics Platforms team. This role involves designing robust data pipelines and solutions, collaborating across teams to deliver impactful data and AI services. Candidates should possess strong experience with Python, SQL, and cloud data t ...

Senior Data Scientist, Strategic Finance & Network Modeling

Relay Technologies in Greater London is hiring a Senior Data Scientist for Strategic Finance to build models that simulate and improve their logistics network's economics. This position demands strong skills in Python and SQL, coupled with financial modelling experience. The candidate will partner closely with f ...

Remote Senior Front End Tech Lead – React & SaaS AI

The Hub/Danske Bank is seeking a Remote Software Engineer to manage client applications built in React and Python. Candidates should have over 7 years of experience, including 3 years at a senior level, and relevant experience in building enterprise-grade SaaS products. The position offers a starting salary of € ...

Senior Data Engineer, Unified Platform & Data Pipelines

DRW is seeking a Senior Data Engineer to join our Data Experience team in Greater London. In this role, you will manage and enhance data pipelines, ensuring the quality and stability of data. With over 7 years of experience in data technologies, you will work collaboratively to deliver data solutions that suppor ...

Senior Principal Data Scientist Aviation AI Leader

A leading analytics company in London is seeking a Senior Principal Data Scientist to provide technical leadership in advanced analytics and machine learning. This role involves mentoring fellow data scientists and collaborating with cross-functional teams to deliver data-driven solutions, with a focus on the av ...

🚀 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