Lead Software Engineer Python Java Jobs in London, UK

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Software Developer | Broadcast | Media Workflows | News

What you will love about Dalet and why you should be working here Dalet empowers media-rich organizations to transform their production and distribution workflows – accelerating media operations, maximizing collaboration and creating higher value from content. As a leading media tec ...

Software Developer | Broadcast | Media Workflows | News

What you will love about Dalet and why you should be working here Dalet empowers media-rich organizations to transform their production and distribution workflows – accelerating media operations, maximizing collaboration and creating higher value from content. As a leading media tec ...

Technical Lead Shape Digital Transformations & Lead Teams

A leading consultancy firm in Greater London seeks a skilled software engineering leader to manage cross-functional teams and drive successful digital transformations for clients. This role requires expertise in the software delivery lifecycle, team management, and proven abilities in client interactions. You wi ...

Media Lead / Associate Director Remote Strategy Lead

A leading content agency in London is seeking a Media Lead to oversee innovative campaign strategies across multiple platforms. This role requires in-depth knowledge of paid social ads managers, strong client relations, and a drive for performance excellence. You'll lead a team focused on delivering high-quality ...

Lead Litigation Lawyer & Team Lead (Financial Services)

Vanquis is looking for a qualified Litigation Lawyer for their team in the UK. This leadership role requires at least 3 years of PQE in financial litigation and a passion for people development. Responsibilities include managing a team of paralegals, ensuring compliance with legal standards, and improving litiga ...

Lead AI Tester / QA Lead (LLM & GenAI)

We’re supporting a consulting partner on the search for a Lead AI Tester / QA Lead to define and own the testing strategy for several AI / LLM use cases at a major financial services client. This role is primarily about strategy, governance and delegation, with some scope to remain hands‑on. <p ...

Product Security Lead Senior Lead Cybersecurity Architect

Out of the successful launch of Chase in 2021, we’re a new team, with a new mission. This is an excellent opportunity to join a world class Cybersecurity organization. As a Product Security Lead (PSL) in the Cybersecurity & Technology Controls (CTC) team for the International Consumer, you will wor ...

Senior Data Engineer (12M FTC) | Investment Data Transformation

Senior Data Engineer (12M FTC) | Investment Data Transformation Own the data engineering capability for a world-class investment platform We’re hiring a Senior Data Engineer to join a high-performing Investment Data & Operations te ...

Machine Learning Research Engineer (LLM & AI Agents)

Machine Learning Research Engineer (LLM & AI Agents) Contract length: 6 months with potential to extend Location: Hybrid 3 days per week in King's Cross We are hiring a Machine Learning Research Engineer to join a high-performing AI research group working at ...

Senior Quant Researcher Intraday Statistical Arbitrage

Position Overview:Research and implement strategies within the firm’s automated trading framework.Analyze large data sets using advanced statistical methods to identify trading opportunities.Develop a strong understanding of market structure of various exchanges an ...

Senior Quant Researcher Volatility

Position Overview:Research and implement strategies within the firm’s automated trading framework.Analyze large data sets using advanced statistical methods to identify trading opportunities.Develop a strong understanding of market structure of various exchanges an ...

Computer Science Teacher – Independent School in Lambeth

Write a short description of your company, a boilerplate of the business, service or product that you offer. Include your business idea and the target audience. This text is primarily supposed to be descriptive, not selling.Computer Science Teacher – Independent School in Lambeth (Jan ...

Senior Quant Researcher Volatility

Position Overview:Research and implement strategies within the firm’s automated trading framework.Analyze large data sets using advanced statistical methods to identify trading opportunities.Develop a strong understanding of market structure of various exchanges an ...

Computer Science Teacher – Independent School in Lambeth

Write a short description of your company, a boilerplate of the business, service or product that you offer. Include your business idea and the target audience. This text is primarily supposed to be descriptive, not selling.Computer Science Teacher – Independent School in Lambeth (Jan ...

Senior Quant Researcher Intraday Statistical Arbitrage

Position Overview:Research and implement strategies within the firm’s automated trading framework.Analyze large data sets using advanced statistical methods to identify trading opportunities.Develop a strong understanding of market structure of various exchanges an ...

Product Specialist – Graduates Considered

Product Specialist – Graduates ConsideredA brilliant opportunity for a talented Graduate to work as a Product Specialist, joining a market-leading disruptive software technology firm in London. This role is firmly positioned at the pre-sales stage, ...

Product Specialist – Graduates Considered

Product Specialist – Graduates ConsideredA brilliant opportunity for a talented Graduate to work as a Product Specialist, joining a market-leading disruptive software technology firm in London. This role is firmly positioned at the pre-sales stage, ...

Remote ML Engineer AI Prototyping & CI/CD

A digital innovation company in the UK is seeking a Machine Learning Engineer to design, build, and refine AI prototypes. This remote role involves collaboration with engineers and data scientists to create scalable solutions and ensure robust deployment. Ideal candidates have strong ML development skills, exper ...

Senior Fullstack Engineer – Hybrid Core Banking Platform

A leading financial technology firm in Greater London seeks an experienced engineer to oversee financial systems' development and management. Key responsibilities include ensuring compliance and building data-driven systems. The ideal candidate should have a strong technical background, experience with Python, P ...

Senior Backend Engineer: AI APIs & Scalable Infra

A leading technology company in Greater London is seeking a Senior Backend Engineer to work on advanced AI systems. The role involves building scalable APIs and improving inference infrastructure while collaborating with AI researchers. The ideal candidate will have strong skills in Python and Go, along with kno ...

Senior AI Engineer Build Scalable AI for Business Impact

Revelator Ltd in Greater London is seeking a Senior AI Engineer to innovate AI solutions that drive business impact across various domains. The ideal candidate will have over 5 years of experience in AI/ML Engineering, strong skills in Python and Azure, as well as a passion for exploring AI applications. This po ...

Cloud DevOps Engineer — GCP/AWS, CI/CD & Terraform

Una empresa internacional de consultoría tecnológica con sede en Londres busca un/a Devops Engineer para unirse a su equipo de consultores. Se requiere un mínimo de 2 años de experiencia en Programación en la Nube, preferiblemente en Google Cloud Platform y/o AWS, así como conocimientos en ETL, SQL, Python y GIT ...

Senior Dev/MLOps Engineer: AI Infra, CI/CD, Equity

Thehumanoid is hiring a Senior Dev/MLOps Engineer to join their Data & Compute Platform team in London. This role involves managing the lifecycle of ML models and infrastructure, building CI/CD pipelines, ensuring system reliability and security, and collaborating with cross-functional teams. Candidates should h ...

Remote DevOps Engineer | Blockchain Infra & Security

A blockchain technology company is seeking a Mid-Senior DevOps Engineer to build and maintain secure blockchain networks and infrastructure. Responsibilities include managing Linux servers, automating processes, and creating comprehensive documentation. The ideal candidate has experience with Docker and Kubernet ...

Senior Backend Engineer German Market Systems

Deepstreamtech is seeking a skilled Senior Back End Engineer to design and build backend systems that support its operations in the German market. This role involves taking projects from concept to delivery, simplifying workflows, and evolving architecture. Suitable candidates will have a strong background in Py ...

Senior Storage Engineer (Contract) Enterprise Data, London

Magnit Global is seeking an experienced Senior Storage Engineer for a 6-month contract in London, offering £630 per day. This role involves key technical responsibilities in maintaining enterprise storage and backup infrastructure within a highly regulated environment. The ideal candidate will have strong skills ...

Senior AI & Vulnerability Security Engineer Remote

Samsara is seeking a Senior Security Engineer in Greater London to enhance their Vulnerability Management infrastructure. The role involves leading operations, improving vulnerability detection, and collaborating with engineering teams. Strong experience with security engineering best practices, Python/GoLang, a ...

Senior Cloud Security Engineer – AWS, GCP & IAM

Millennium Management, LLC is seeking a Cloud Security Engineer in Greater London. The role requires expertise in AWS and GCP security controls, with responsibilities including designing security strategies, conducting audits, and collaborating with IT and compliance teams. Candidates should have a Bachelor's in ...

Senior Full Stack Engineer: Build AI Driven Platform End to End

Pairwise is seeking a Senior Full-Stack Engineer to join their dynamic team in Greater London. This full-time role involves architects and shipping core products using Python/Django and React. Candidates should have over 5 years of engineering experience with a strong focus on applied AI. Join a mission-driven c ...

Senior Applied AI Engineer Agentic Workflows

A deep-tech company is seeking a Senior Applied AI Engineer to create AI agents for engineering workflows. You will build advanced agentic functionalities that integrate deeply into client operations. Ideal candidates have 3+ years of experience in applied AI or ML engineering, expertise in Python, and the abili ...

Senior AI Engineer: GenAI for Global Debt Platform

A leading AI platform in debt markets seeks a Senior AI Engineer to drive innovation through generative AI applications tailored to complex financial workflows. The ideal candidate will have strong Python proficiency and hands-on experience in NLP, along with a solid understanding of the GenAI landscape. This ro ...

Energy Quant Developer: Build Trading Models & Cloud

A leading financial services firm is seeking a highly skilled Quantitative Engineer to work on Commodities Trading. The role involves collaborating with traders on complex trading problems, designing high-performance applications, and implementing quantitative models. Ideal candidates hold a degree in a relevant ...

ML Engineer: AI Talent Matching Engine + Equity

Dex in Greater London is seeking an ML Engineer who will drive the development of an AI talent matching system. The role entails working with embeddings, vector search, and building reliable backend services in Python. The candidate should possess production judgment and robust execution skills, alongside a soli ...

Contract ML Engineer — AWS, MLOps, Production Pipelines

A leading technology firm is seeking an experienced Machine Learning Engineer on a contract basis in Greater London. The role involves designing and deploying ML models and pipelines, collaborating with data scientists, and leveraging AWS services for ML workloads. Candidates should have strong Python skills and ...

Security Engineer: Threat Detection & Response

A leading technology company in the UK seeks an Information Security Engineer to safeguard its infrastructure globally. The role involves developing defensive strategies and investigating security threats across the company's network. Ideal candidates will have over three years of security experience, proficienc ...

GenAI Data Platform Engineer Full Stack Leader (Hybrid)

A global banking institution in London seeks a Full-Stack Engineer to build foundational systems for a Generative AI assistant. This role emphasizes data-focused engineering, requiring expertise in Python, TypeScript, and modern frontend frameworks. The position offers a hybrid working model, competitive salary, ...

Ads ML Engineer — Real Time Personalisation at Scale

An innovative technology company in London is seeking a Machine Learning Engineer to enhance their advertising products. The ideal candidate will have significant experience in Python coding and machine learning fundamentals, focusing on the end-to-end lifecycle of ML models in a hybrid work environment. Collabo ...

Production ML Engineer: Scale Personalization Impact & Equity

A forward-thinking tech startup in Greater London seeks an experienced Machine Learning Engineer to develop robust ML systems for retail. Your key responsibilities will include designing production-grade infrastructure and collaborating with researchers on model implementation. Applicants should have 3–5+ years ...

ML Engineer II — AI for Travel Tech (Manchester)

A leading global business travel company seeks a Machine Learning Engineer II in Manchester. The role involves designing, building, and optimizing AI systems for business impacts. Candidates should have robust experience in AI techniques, statistical modeling, and strong coding skills in Python. The company offe ...

Senior Full Stack AI Engineer for Healthcare

Heidi is seeking an Engineer to develop AI features that aid clinicians in delivering care. The ideal candidate will have a medical degree and clinical experience, as well as proficiency in Python and modern frontend frameworks like React. Responsibilities will include building full-stack AI solutions and operat ...

ML Engineer II: Build Scalable AI for Travel Solutions

A leading business travel company is seeking a Machine Learning Engineer II to join their Product AI Engineering team. This role involves designing, building, and optimizing intelligent systems using cutting-edge AI techniques. Candidates should have over 6 years of experience with a bachelor's or equivalent. Fa ...

Principal ML Engineer — Sports AI & Personalisation

5V Video in West London is seeking a Principal Machine Learning Engineer for a freelance 6-month contract. This role involves shaping large-scale ML systems for live sports, focusing on real-time insights, low-latency inference systems, and cloud-native AI platforms. Ideal candidates will have strong ML experien ...

Senior Fullstack Engineer – AI Care Platform (Hybrid)

black.ai is seeking a Mid-level or Senior Fullstack Engineer to support the development of AI features that enhance clinical workflows. This hybrid role demands proficiency in Python and modern frontend technologies along with a medical degree and clinical experience. You will collaborate closely with product te ...

Founding ML Engineer: Build the Talent Matching Engine

A tech company based in Greater London is seeking an ML Engineer to develop an AI-driven talent matching system. You will own the matchmaking engine, build embedding models, and ensure reliable backend services. The ideal candidate has strong expertise in Python and ML foundations along with practical production ...

Senior Portfolio Engineer: Fixed Income ETFs & Indices

A global asset management firm in London is seeking a Senior Portfolio Engineer to manage Fixed Income ETFs and index portfolios. This role requires strong financial markets knowledge and quantitative programming skills in Python. The successful candidate will support client flows, manage investment and risk exp ...

Senior Platform Engineer Cloud, Kubernetes & CI/CD (Remote)

PolyAI is seeking a highly skilled Cloud Engineer in Greater London to deliver reliable and scalable infrastructure. Successful candidates will have over 5 years of experience, strong Python programming skills, and hands-on expertise with cloud environments (AWS/Azure). This role focuses on automation, cost-effi ...

Hybrid Mobile QA Engineer React Native, AI Testing

A leading digital technology consultancy in Greater London seeks a QA Engineer to ensure high-quality digital experiences. The role involves designing tests, building automation packs, and performing testing across non-functional areas like Accessibility and Security. Ideal candidates are detail-oriented individ ...

Gen AI Engineer: Production LLMs & RAG (London)

A leading firm in Financial Services is seeking an AI Engineer for a 6-month contract with potential extensions. The role involves hands-on implementation of Gen AI solutions, optimizing models, and collaborating with cross-functional teams. Candidates should have experience in financial services and a strong ba ...

Azure GenAI Engineer: RAG & Agent AI Pipelines

A leading tech consulting firm in the City Of London is seeking an experienced Azure GenAI Engineer to develop and scale intelligent applications. The role involves hands-on work with Azure's AI stack and modern frameworks, including Python and FastAPI. The ideal candidate will have expertise in AI/ML model deve ...

ML Data Quality Engineer: Audio & Speech

Cantina Labs is seeking an ML Engineer focused on Data Quality to own the datasets that power our speech systems. This role involves auditing, filtering, and labeling audio and text data to improve model performance. Candidates should have strong experience in building ML-driven data quality systems, be proficie ...

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    Lead Software Engineer Python Java Jobs in London Job Search Guide, Trends and Insights