Senior Java Python Engineer Jobs in UK

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AI Quality Engineer (Remote) (Birmingham)

About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to desig ...

Full Stack Developer Home Based (remote)

About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to desig ...

Software Developer Work From Home (remote)

About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to desig ...

AI Integration Engineer (Remote) (Manchester)

About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to desig ...

AI Application Engineer (Remote) (Bristol)

About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to desig ...

Freelance Software Engineer (Remote) (Southampton)

About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to desig ...

Software Engineer AI (Remote)

About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to desig ...

Software Engineer / Developer / Programmer Remote

About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to desig ...

Remote Software Backend Engineer (M/W/D)

About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to desig ...

Generative AI Engineer (Remote) (Cardiff)

About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to desig ...

AI Red Team Engineer (Remote) (Cambridge)

About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to desig ...

AI Quality Engineer (Remote) (Liverpool)

About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to desig ...

ML Engineer (Remote) (Manchester)

About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to desig ...

Software Developer Work From Home (remote)

About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to desig ...

Software Engineer / Developer / Programmer Remote

About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to desig ...

Data Reliability Engineer II

Data Reliability Engineer II (dRE) Role Overview:A crucial role in CME's Cloud transformation, the dRE II will be aligned to data product pods ensuring that our data infrastructure is reliable, scalable, and efficient as the GCP data footprint expands rapidly.Accountabilities: <l ...

Senior Code Scanning Engineer (Remote) Scale Security

A leading technology firm is seeking an experienced software engineer to join their Code Scanning team. This remote position in the UK involves designing and implementing scalable solutions and providing technical leadership. Candidates should have extensive experience in Software Engineering, with strong coding ...

AI Native Backend Engineer (Remote)

Life360 is looking for an AI-Native Backend Focused Engineer who will play a key role in developing our partner ecosystem and integrating AI into engineering workflows. With 6+ years of backend software engineering experience and strong skills in Java and Spring Boot, you will build features that extend Life360' ...

Senior Backend Engineer — Secure Cloud & Data Platforms

A technology firm in the UK is seeking an experienced Software Engineer to lead the development of backend platforms for national security and defense clients. You will work in an Agile team to leverage your expertise in JAVA, cloud technologies, and DevSecOps practices. This role requires at least 5 years of pr ...

Principal Backend Architect for Live Game Services

A leading gaming company in the UK is seeking a Principal Software Engineer for backend services. You will lead the architecture of major game titles, mentor the engineering team, and act as the key contact for external clients. Candidates must have experience in game development and architecting distributed app ...

Senior Full Stack Engineer: AI Driven Platform

An innovative online learning platform in the UK seeks a Full-Stack Engineer to design and build features across backend services and a React frontend. You will leverage technologies like Java and Node.js while promoting a culture of diverse perspectives. Ideal candidates will have a strong engineering backgroun ...

Lead Vector Search Engineer Real Time Elasticsearch

Elastic, the Search AI Company, is seeking a Principal Software Engineer for their Elasticsearch Search team in the United Kingdom. The successful candidate will lead initiatives to develop an industry-leading vector database, focus on enhancing vector similarity search functionality, and collaborate with a dist ...

Senior Code Scanning Engineer (Remote) Scale Security

A leading technology firm is seeking an experienced software engineer to join their Code Scanning team. This remote position in the UK involves designing and implementing scalable solutions and providing technical leadership. Candidates should have extensive experience in Software Engineering, with strong coding ...

Senior Backend Engineer — Secure Cloud & Data Platforms

A technology firm in the UK is seeking an experienced Software Engineer to lead the development of backend platforms for national security and defense clients. You will work in an Agile team to leverage your expertise in JAVA, cloud technologies, and DevSecOps practices. This role requires at least 5 years of pr ...

Senior Full Stack Engineer: AI Driven Platform

An innovative online learning platform in the UK seeks a Full-Stack Engineer to design and build features across backend services and a React frontend. You will leverage technologies like Java and Node.js while promoting a culture of diverse perspectives. Ideal candidates will have a strong engineering backgroun ...

AI Native Staff Engineer: Global Backend Lead

Life360 seeks a Staff Software Engineer AI-Native to design high-quality services for international members, focusing on AI integration. This role involves building backend solutions with modern technologies such as Java and AWS, ensuring the platform meets the needs of families worldwide. Candidates should have ...

Senior / Staff Digital Design Engineer

Senior / Staff Digital Design Engineer - Bishop's Stortford If you want to know about the requirements for this role, read on for all the relevant information.A leading Semiconductor company is looking for an experienced Senior / Staff Digital Design Engineer to lead di ...

Senior Software Engineer Autonomous Maritime Systems (Hybrid)

A leading engineering firm in the UK is seeking an experienced Software Engineer to develop advanced software solutions for autonomous systems in marine and defence technology. You will lead software design and collaborate with multidisciplinary teams, ensuring integration and delivery of projects. Applicants sh ...

Software Engineer | Canvas | SVG | High Performance Charting

Software Engineer | Canvas | SVG | High-Performance Charting | London to £200,000 depending on exp. Most data visualisation roles sit on top of libraries. This one builds the engine behind them. I’m hiring a Senior Engineer to work on a widely-used charting library used by ...

Big Data QA Engineer

Overview Big Data QA Engineer needed by a leading Telco client to work on transformation projects. You will develop and execute test scripts and assist with the development and maintenance of smoke, performance, functional and regression tests to ensure code behaves as designed. This is a long-te ...

Software/Data Engineer Quant Hedge Fund £250k+

Software/Data Engineer - Quant Hedge Fund - £250k+ A $25BN AUM statarb/HFT equities focused hedge fund client is scaling their front office facing data team to support incoming portfolio manager/researcher hires. This Data/Software Engineer will be working on data ingestion, ...

Data platform engineer

Hybrid/London- Twice a week Our client is looking for an experienced Senior/Lead Data Platform Engineer to join them on a permanent basis. This role is ideal for a cloud or platform engineer with solid DevOps and infrastructure skills, who can work on data migration, platform setup, and moder ...

Big Data QA Engineer

Overview Big Data QA Engineer needed by a leading Telco client to work on transformation projects. You will develop and execute test scripts and assist with the development and maintenance of smoke, performance, functional and regression tests to ensure code behaves as designed. This is a long-te ...

Software/Data Engineer Quant Hedge Fund £250k+

Software/Data Engineer - Quant Hedge Fund - £250k+ A $25BN AUM statarb/HFT equities focused hedge fund client is scaling their front office facing data team to support incoming portfolio manager/researcher hires. This Data/Software Engineer will be working on data ingestion, ...

Generative AI Content Engineer – EdTech

# Generative AI Content Engineer – EdTech,January 23, 2026### Job Description**Location:** London, UK **Work Model:** On-site **Role Type:** Full-TimeWe are looking for a **Generative AI Content Engineer** with strong experience in LLMs and content generation to join our client’s on-site team in London. This r ...

Generative AI Content Engineer – EdTech

# Generative AI Content Engineer – EdTech,January 23, 2026### Job Description**Location:** London, UK **Work Model:** On-site **Role Type:** Full-TimeWe are looking for a **Generative AI Content Engineer** with strong experience in LLMs and content generation to join our client’s on-site team in London. This r ...

RF Engineer

This role requires a Senior RF Engineer who has thorough experience of Antenna design and RF / Microwave for Radar or similar applications. Your responsibilities will include new product design, product enhancements together with obsolescence management with existing equipment. Key Areas of Knowle ...

RF Engineer

This role requires a Senior RF Engineer who has thorough experience of Antenna design and RF / Microwave for Radar or similar applications. Your responsibilities will include new product design, product enhancements together with obsolescence management with existing equipment. Key areas of knowledge will includ ...

Embedded Design Engineer

Senior Embedded Design Engineer - Crowborough Hybrid/Onsite Essential skills Experience of developing embedded products for five or more years Embedded analogue and digital hardware design (schematic and PCB) Arm Cortex M series e ...

Lead Software Engineer Privileged Access Management

Principal Software Engineer — Privileged Access Management (PAM) Help build the backbone of secure cloud infrastructure. Our globally-renowned client looking for a senior engineer who thrives in complex distributed systems, loves owning problems end-to-end ...

Prinicpal Software Engineer

Principal Software Engineer London - Hybrid Up to £140k + bonus We're working with a profitable, engineering-led fintech that builds software used by investment firms to manage reporting, data, and client-facing outputs. Their platform ...

Software Developer

LMAX is renowned for its high-performance, ultra-low latency (we measure in microseconds) exchange written in core Java. We constantly push technology further than most, especially in our greenfield projects, driving the financial industry in new directions. Developers are encouraged to constantly deve ...

Software Developer

LMAX is renowned for its high-performance, ultra-low latency (we measure in microseconds) exchange written in core Java. We constantly push technology further than most, especially in our greenfield projects, driving the financial industry in new directions. Developers are encouraged to constantly deve ...

Design Verification Engineer

Senior Verification Engineer UK Remote I am seeking a Senior Verification Engineer to join an established and fast-growing startup as it enters its next phase of growth. With a team of nearly 100 people, this company is at the forefront of p ...

Senior Software Engineer Up to £100k Hybrid working

Senior Software Engineer – Python, AWS, SQL A high number of candidates may make applications for this position, so make sure to send your CV and application through as soon as possible.Location: London - Hybrid (2 days per week on-site) <strong ...

Senior Azure Databricks Data Engineer | Commodities & Energy Trading | Greenfield Next Gen Lake[...]

Senior Azure Databricks Data Engineer | Commodities & Energy Trading | Greenfield Next-Gen Lakehouse | Up to £110K + Bonus + Benefits We are recruiting a senior Data Engineer for one of the world's largest and most diverse general trading companies, specializing in energy and commodities trading. ...

Senior Software Engineer Autonomous Maritime Systems (Hybrid)

A leading engineering firm in the UK is seeking an experienced Software Engineer to develop advanced software solutions for autonomous systems in marine and defence technology. You will lead software design and collaborate with multidisciplinary teams, ensuring integration and delivery of projects. Applicants sh ...

Marine UI Software Engineer — Hybrid, Next Gen Maritime Tech

A dynamic recruitment firm in the UK is seeking a Software Engineer to join their team developing marine-based systems. In this role, you will design and develop high-quality software focused on user interface design. The ideal candidate has proven experience with Java, a strong understanding of software enginee ...

Test Automation Engineer

Job Description:As a Test Automation Engineer, you will be part the Automation Squad covering work across the Tribe. You will be contributing to: Test Automation Transversal services: Create and maintain test automation frameworks, build relevant test automation knowledge and competencie ...

Test Automation Engineer

Job Description:As a Test Automation Engineer, you will be part the Automation Squad covering work across the Tribe. You will be contributing to: Test Automation Transversal services: Create and maintain test automation frameworks, build relevant test automation knowledge and competencie ...

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    Senior Java Python Engineer Jobs in United Kingdom Job Search Guide, Trends and Insights