Lead Software Engineer Python Java Jobs in London, UK

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NLP ML Engineer: RAG & LLMs for Smart Search

A leading finance technology firm in Greater London is seeking a Machine Learning Engineer NLP Specialist to design and implement advanced Natural Language Processing models. You will work on innovative projects to enhance AI capabilities while processing diverse datasets. Ideal candidates have proven experience ...

LLM & AI Agents Research Engineer Hybrid Role

A leading AI research organization seeks a Machine Learning Research Engineer to work on large language models and AI agents. This is a hybrid role based in King's Cross, requiring experience in machine learning and strong skills in Python and PyTorch. Ideal candidates will contribute to cutting-edge research an ...

Applied AI ML Engineer Hybrid, Rapid Modeling

A leading music and entertainment company in London is seeking an ML Engineer / Data Scientist to drive AI innovations. This hybrid role will focus on developing and scaling machine learning models to enhance our business intelligence capabilities. The ideal candidate will have a strong background in Python and ...

Risk Lead in London Lithe Consulting Ltd

Risk Lead London, UnitedKingdom Tech stack Python C Job Description ...an SME background, or else be sat in a large corporate and wishing they were at an SME! We're after someone who is comfortable with Python code (or C++/. ...

Graduate Quant Developer — Build Trading Systems & Models

Hunter Bond is seeking a Graduate Software Developer/Quantitative Developer to kickstart a career in technology and quantitative finance in Greater London. The role involves designing and enhancing trading systems, developing quantitative models, and collaborating with top talent in a high-performance environmen ...

Quantitative Developer European Power & Gas

Stars Arena is seeking a European Power and Gas Quantitative Developer in London. This full-time role requires 3-5 years of software development experience and proficiency in Python and SQL. The ideal candidate has a deep understanding of Agile methodologies and will focus on performing computationally intensive ...

Senior Data Scientist – Risk & Insights Leader

Fitch Solutions is seeking a Data Scientist to join their team in London or Manchester. The role involves designing and deploying quantitative models to power advanced analytics and insights for clients across various sectors. Candidates should have experience in data querying, machine learning, and tools such a ...

Quantitative Developer: Build Data Driven Trading Tools

A leading quantitative investment firm in Greater London seeks a Quantitative Developer to design and implement proprietary systems. The ideal candidate has 5+ years in high-impact software engineering, strong Python skills, and a concise coding style. This role involves collaboration with researchers and managi ...

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 ...

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 ...

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 ...

Senior Front Office Developer Systematic Trading

Fasanara Digital was established 7 years ago and is the crypto arm of Fasanara Capital, a 14 year‑old boutique alternative asset manager. We are a Quantitative Investment fund applying a scientific approach to investing in crypto assets. Our goal is to achieve exceptional risk‑adjusted returns. We pursue a ...

Senior Front Office Developer Systematic Trading

Fasanara Digital was established 7 years ago and is the crypto arm of Fasanara Capital, a 14 year-old boutique alternative asset manager. We are a Quantitative Investment fund applying a scientific approach to investing in crypto assets. Our goal is to achieve exceptional risk-adjusted returns. We pursue a ...

Senior Front Office Developer Systematic Trading

Fasanara Digital was established 7 years ago and is the crypto arm of Fasanara Capital, a 14 year-old boutique alternative asset manager. We are a Quantitative Investment fund applying a scientific approach to investing in crypto assets. Our goal is to achieve exceptional risk-adjusted returns. We pursue a ra ...

Senior Front Office Developer Systematic Trading

Fasanara Digital was established 7 years ago and is the crypto arm of Fasanara Capital, a 14 year-old boutique alternative asset manager. We are a Quantitative Investment fund applying a scientific approach to investing in crypto assets. Our goal is to achieve exceptional risk-adjusted returns. We pursue a ra ...

Partner Engineer, YouTube, UKI

Partner Engineer, YouTube, UKI _corporate_fare_ YouTube _place_ London, UK **Early** Experience completing work as directed, and collaborating with teammates; developing knowledge of relevant concepts and processes. **Minimum qualifications:** + Bachelor’s degree in E ...

Senior JavaScript Engineer

This Senior JavaScript Engineer role is with a startup who are one of fastest growing in their field. They’ve just gone through a round of funding and need to up their productivity so are looking for an extra pair of hands to join their team in Mayfair.Good amount of tech on site including Python, Reac ...

GenAI Engineer / ML Engineer

This is a fantastic opportunity for a GenAI Engineer / ML Engineer to support a technology 1st business with the next phase of their Generative AI platform. Location: Remote This is a 6 months contract engagement, outside IR35, remote working + scope to extend. Responsi ...

Senior JavaScript Engineer

This Senior JavaScript Engineer role is with a startup who are one of fastest growing in their field. They’ve just gone through a round of funding and need to up their productivity so are looking for an extra pair of hands to join their team in Mayfair.Good amount of tech on site including Python, Reac ...

Mid Senior Mobile Engineer

Mid-Senior Mobile Engineer – Would you like the opportunity to work for a market leading organisation? You’ll be Mid- Senior Mobile Engineer working mainly on apps, using Kotlin Multiplatform (KMP) to build features that work on both Android and iOS. You’ll take ownership of complex technical work and help im ...

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 ...

Lead Product Data Scientist Operations Decision Systems

British Airways is looking for a Principal Product Data Scientist in London. You will join the Operations Delivery Intelligence directorate, focusing on creating decision-support software using advanced machine learning techniques. The ideal candidate will have a master's degree or extensive experience in data s ...

Snr Software Engineer Full Stack (C# .Net) (Remote in the United Kingdom)

About KnowBe4KnowBe4, the provider of the world's largest security awareness training and simulated phishing platform, is used by tens of thousands of organizations around the globe. KnowBe4 enables organizations to manage the ongoing problem of social engineering by helping them train employees ...

Software Engineer with C# Dot net Asp Dot Net SQL Server SSIS

Software Data Engineer with C# Dot Net, ASP.NET, SQL Server, SSIS, SSRS Our Client is a bank based in Central London looking to recruit a Data Engineer with at least 7 years of experience in C# Dot Net and SQL Server, specifically with SSIS. You must have solid expertise of at least 7 years’ e ...

Senior Software Engineer (Go) Energy Trading & Renewable Storage Up to £95k Hybrid

Work at the intersection of trading, battery storage and renewable energy. In this role you’ll be solving some of the biggest challenges for energy storage, modelling the performance of ‘grid-scale’ battery behaviour to allow Energy Traders to make decisions on when to discharge or harvest from the gri ...

Senior Software Engineer II London, England, United Kingdom London, England, United Kingdom

Location: London, England, United Kingdom Join Axon and be a Force for Good. At Axon, we’re on a mission to Protect Life. We’re explorers, pursuing society’s most critical safety and justice issues with our ecosystem of devices and cloud software. Like our products, we work better ...

.Net C# Software Engineer with Commodity Trading Company 12 Month Initial Contract

Overview Exciting opportunity for a .Net C# Software Engineer with a background in trading environments to join this global Commodities Trading Company. This is a 12-month initial contract with potential for rolling extensions and possible transition to permanent. Key Requirements <ul ...

Graduate Software Engineer / Quant Developer / Quant Researcher Up to £180,000 + Bonus + Package

Graduate Software Developer / Quantitative Developer / Quantitative Researcher Location: London (Hybrid) Compensation: Up to £180,000 + Bonus + Benefits Client: Prestigious Fund ...

Senior Software Engineer I London, England, United Kingdom London, England, United Kingdom

Location: London, England, United Kingdom Join Axon and be a Force for Good. Your Impact What You’ll Do Lead engineering architecture design reviews, incorporating AI-driven insights and system modeling Set a high technical bar through code and architec ...

Senior Software Engineer (m/f/d) Remote (DE, the UK or PT)

Carbon management solution to help enterprises continuously control, reduce, and report their emissions.🌍 About us - Join our mission to fight climate changeWe’re building the carbon accounting platform that enterprises use for compliance reporting ...

Software Engineer II – PE&R (Front End JavaScript + Angular) Hybrid Work Schedule

OverviewWe are looking for a Intermediate Engineer to design and implement complex front-end solutions across our Upstream Planning portfolio. This role involves supporting technical decisions while ensuring adherence to best practices. The overall objective is to contribute to modern, sc ...

Software Engineer II – PE&R (Front End JavaScript + Angular) Hybrid Work Schedule

OverviewWe are looking for a Intermediate Engineer to design and implement complex front-end solutions across our Upstream Planning portfolio. This role involves supporting technical decisions while ensuring adherence to best practices. The overall objective is to contribute to modern, sc ...

Senior Software Engineer (m/f/d) Remote (DE, the UK or PT)

Carbon management solution to help enterprises continuously control, reduce, and report their emissions.🌍 About us - Join our mission to fight climate changeWe’re building the carbon accounting platform that enterprises use for compliance reporting ...

Snr Software Engineer Full Stack (C# .Net) (Remote in the United Kingdom)

About KnowBe4KnowBe4, the provider of the world's largest security awareness training and simulated phishing platform, is used by tens of thousands of organizations around the globe. KnowBe4 enables organizations to manage the ongoing problem of social engineering by helping them train employees ...

Azure Infra Architect

Job type: 6 Months contract with possible extension Role Overview We are seeking an experienced IaC Engineer and Migration Architects and Engineers with strong proficiency in automation and cloud-native practices. The ideal candidate will design, implement, and maintain in ...

Product Manager Internal Data Platform

Product Manager (Internal Data Platform) London / WFH to £95kAre you a tech savvy Product Manager with previous experience as a Data Engineer, improving internal data platforms?You could be progressing your career as part of a friendly and supportive international team at a growing and hu ...

Product Manager Internal Data Platform

Product Manager (Internal Data Platform) London / WFH to £95kAre you a tech savvy Product Manager with previous experience as a Data Engineer, improving internal data platforms?You could be progressing your career as part of a friendly and supportive international team at a growing and hu ...

Sr Support Engineer, Data & Analytics Operations 1603

Job Title: Sr Support Engineer, Data & Analytics OperationsDuration: 6 months (Possibility of Extension/Conversion)Location:Toronto – Sheppard/North York (Atria). Preference for North York, but Waterloo is acceptable – preferred locationWork Arrangement: Hybrid – expected onsi ...

Sr Support Engineer, Data & Analytics Operations 1603

Job Title: Sr Support Engineer, Data & Analytics OperationsDuration: 6 months (Possibility of Extension/Conversion)Location:Toronto – Sheppard/North York (Atria). Preference for North York, but Waterloo is acceptable – preferred locationWork Arrangement: Hybrid – expected onsi ...

Data Scientist

Job description Our client, a global consumer business, are currently hiring for a Data Scientist to create market analysis and forecasts to drive pricing decisions. The primary responsibility is to develop, test and operate pricing systems and algorithms using SQL, Python, data analysis ...

Data Scientist

Job description Our client, a global consumer business, are currently hiring for a Data Scientist to create market analysis and forecasts to drive pricing decisions. The primary responsibility is to develop, test and operate pricing systems and algorithms using SQL, Python, data analysis ...

Senior Backend Engineer Golang Security

Senior Software Engineer - Golang Information Security£600-650 per day - Inside IR35 3 days per week on-site, 2 days WFH 3 Month rolling contract up to 2 years Job SummaryThe Information Security team is responsible for developing ...

Senior Backend Engineer Golang Security

Senior Software Engineer - Golang Information SecurityDo you have the following skills, experience and drive to succeed in this role Find out below.£600-650 per day - Inside IR35 3 days per week on-site, 2 days WFH 3 Month rolling contract up to 2 year ...

Head of AI Engineering, London

3 weeks ago Be among the first 25 applicants About UsBJAK is an internet company with deep expertise in automation, having built Southeast Asia's largest insurance aggregator. Leveraging our strength in advanced browser automation, we're now launching a global AI solution designed ...

Principal Software & Hardware Assurance Practitioner

Our client, a leader in the Defence & Security sector, is seeking a Principal Software & Hardware Assurance Practitioner to join their team.All candidates should make sure to read the following job description and information carefully before applying.This is a permanent role offering a hybrid working pa ...

Software Engineering Manager Data (Permanent)

White Collar Factory (95009), United Kingdom, London, LondonSenior Software Engineering Manager What you’ll do You’ll support a cross-functional group of 3 to 4 engineering teams to design, develop and integrate software features that are delightful and vital to the lives of credit card consumers across all ...

Senior Rust Engineer Low Latency Trading Systems (Hybrid)

Citi in Greater London is looking for a Senior Developer to lead applications analysis and programming activities. This role is critical in shaping their low-latency algorithmic trading environment using Java and Rust. The successful candidate will work within a high-performance architecture team to build ess ...

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