Anti-Bot Engineer (Python, Go, Rust, JavaScript)

Company IconAdthena
Location IconLondon

Our Mission - Join us in shaping the future of paid search intelligence. Adthena is an award-winning search intelligence platform powered by patented AI technology and a team of dedicated experts. We help brands, marketers, and agencie...Read More>>.

Posted: June 6th, 2026
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Frontend Engineer [Mid-Senior Eng] in London - Noon Academy

Company IconJava Script Works
Location IconLondon

Professional Experience Years of experience as a frontend software engineer with consumer mobile products. Experienced in React, React Native and TypeScript/JavaScript or equivalent. Empowering and mentoring are important to you,...Read More>>.

Posted: June 6th, 2026
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Front-End React Developer with UI/UX Focus

Company IconJava Script Works
Location IconCambridge

Java Script Works is seeking an experienced Front-End Software Developer in Cambridge, UK, with very strong skills using React. The role requires several years in a commercial development environment and an eye for UI/UX design. In addition to React,...Read More>>.

Posted: June 6th, 2026
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Web Application Engineer - AI Trainer in Hartlepool - DataAnnotation

Company IconJava Script Works
Location Icon

Evaluating Code QualityOne important aspect of software development is evaluating the code quality produced by AI models. This evaluation involves assessing both the correctness and performance of the code.TechnologiesThe...Read More>>.

Posted: June 6th, 2026
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Senior Software Developer ( .NET & React) in Reading - Rise Technical

Company IconJava Script Works
Location IconReading

Senior Software Developer (.NET & React) Reading (Hybrid), United Kingdom Posted about 1 year ago Salary: £80,000 - £90,000 + Insurance + Pension An excellent opportunity awaits an experienced software developer...Read More>>.

Posted: June 6th, 2026
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Python Automation Engineer - Test Frameworks & Device Farm

Company IconRoku, Inc.
Location Icon

Roku, Inc. in the United Kingdom is seeking a Software Engineer with a strong background in Python and automated testing. The successful candidate will build automation frameworks for high-profile applications and collaborate with firmware and QA tea...Read More>>.

Posted: June 6th, 2026
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Lead Java Engineer - Hybrid, SC Cleared, AI/Infra

Company IconUK Home Office
Location IconSheffield

The UK Home Office is seeking a Lead Java Engineer based in the UK, including options for Croydon, Manchester, or Sheffield on a hybrid basis. This role involves managing multiple technical teams, ensuring adherence to quality standards, and providin...Read More>>.

Posted: June 6th, 2026
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Frontend Engineer: Vue/TS & Modern UI Dev

Company IconJava Script Works
Location IconLondon

Java Script Works is looking for a software engineer based in Greater London to work in a challenging tech environment. The ideal candidate will be proficient in JavaScript (ES6+), CSS, and modern frameworks like Vue, with experience in frontend deve...Read More>>.

Posted: June 6th, 2026
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Senior SDET: AI-Driven API & Data Validation

Company IconClearRoute
Location Icon

A leading engineering consultancy is looking for a Senior Talent Acquisition Specialist to design and implement API automation frameworks. This role requires expertise in Python, API testing, and experience with AI-driven systems. Candidates should h...Read More>>.

Posted: June 6th, 2026
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Client-Facing Software Engineer (React/Java, Cloud) — UK Travel

Company IconAccenture UK
Location IconGlasgow

Accenture UK is seeking a Software Engineer for their Glasgow office. This role involves working closely with clients to develop exceptional digital products, with a focus on delivering quality and maintaining holistic client accounts.The i...Read More>>.

Posted: June 6th, 2026
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Python Developer – FinTech SaaS Analytics (Hybrid)

Company IconSpencer Scott - Technology Recruitment
Location Icon

A well-known FinTech Software Company is seeking a Mid-Level Python Developer to design, build, and optimise analytics and data workflows on a greenfield SaaS platform. Collaborating with actuaries and data scientists, you'll enhance Python-based fea...Read More>>.

Posted: June 6th, 2026
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Machine Learning Researcher Statistics Python AI

Company IconClient Server
Location IconCambridge

Machine Learning Researcher (PhD Statistics Python AI R&D) Cambridge / WFH to £85k Are you a tech savvy, PhD educated, Machine Learning Researcher looking for an opportunity to work on complex and interesting systems at the cutti...Read More>>.

Posted: June 6th, 2026
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Senior React Engineer (Next.js) – London

Company IconJava Script Works
Location IconLondon

Java Script Works in Greater London is looking for a Mid / Senior React Developer to join their dynamic team. The ideal candidate should have over 5 years of experience in either React or Next.js, showcasing strong technical skills. Responsibilities...Read More>>.

Posted: June 6th, 2026
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API Security Architect – Product & Cloud

Company IconPontoon Solutions
Location IconLondon

Pontoon Solutions is seeking a Security Architect (API / Product Security) to enhance the Security Architecture team. This hybrid role requires a solid background in security, strong communication skills, and the ability to guide engineering teams...Read More>>.

Posted: June 6th, 2026
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Backend Engineer (AI Engine)

Company IconContinuum Industries
Location IconCity of Edinburgh

About the RoleContinuum Industries is on a mission to help rewire the world with cleaner, green energy. We have developed Optioneer, an AI-powered tool that helps plan new infrastructure projects much faster, more sust...Read More>>.

Posted: June 6th, 2026
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C# Risk Tech Engineer — Backend & Automation

Company IconMaven Securities
Location IconLondon

Maven Securities is seeking a skilled software developer to join their team in London. You will work closely with traders and risk specialists to enhance risk systems and develop innovative solutions. The role requires strong C# skills, experience...Read More>>.

Posted: June 6th, 2026
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Gen AI Python Software Engineer

Company IconCitibank (Switzerland) AG
Location IconBelfast

For additional information, please review .**Discover your future at Citi**Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the oppo...Read More>>.

Posted: June 6th, 2026
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Senior Node.js Engineer - AI SaaS, Product-Driven Ownership

Company IconVANRATH
Location IconBelfast

A Northern Ireland-based SaaS company is seeking a Software Engineer (Node.js) to join their team in Belfast. The position involves developing an AI-powered platform, where you will take ownership of features from idea to delivery across both backend...Read More>>.

Posted: June 6th, 2026
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Mid Backend Engineer - AI-Powered Fintech Platform

Company Iconbumper.co
Location IconSheffield

A leading digital payments platform in the UK seeks a Mid Backend Engineer to join their dynamic Tech Team. This full-time hybrid role focuses on developing backend applications, APIs, and AI-driven insights. Ideal candidates will have over four year...Read More>>.

Posted: June 6th, 2026
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Front-end Developer (Neasden, NW London) in London - Bluestorm Recruitment by Dazzle

Company IconJava Script Works
Location IconLondon

Front-end Developer Location: Neasden, NW London, United Kingdom Tech stack JavaScript Frontend CSS HTML5 Shopify Job Overview A fast‑growing company is...Read More>>.

Posted: June 6th, 2026
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Senior Backend Engineer - Video Generation Platform(Remote)

Company IconSynthesia
Location IconLondon

Synthesia is looking for a Lead Software Engineer to join our Video Platform team, focusing on scaling and improving our video generation pipeline. You will own key projects, ensuring alignment with our commercial objectives while utilizing your d...Read More>>.

Posted: June 6th, 2026
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Senior Backend Engineer - Casino UX at Midnite

Company IconJack and Jill AI
Location IconLondon

Job Title: Senior Backend Engineer - Casino UX Company Description: Midnite - Series C betting platform backed by $75M+ from Raine Group and Makers Fund. Join the Casino UX team to build the high-concurrency backend...Read More>>.

Posted: June 6th, 2026
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Founding Backend Engineer for AI Infra Platform

Company IconRequesty
Location IconLondon

Requesty, located in the Greater London area, is seeking an experienced backend developer with over 5 years of experience. You will build a scalable micro-service architecture for an innovative LLM platform that integrates with over 200 providers....Read More>>.

Posted: June 6th, 2026
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Full‑Stack Engineer (React + Python) — AI‑Driven Platform

Company IconOritain
Location IconLondon

Oritain is seeking a skilled individual contributor in London for a hybrid role, working across full stack development. Responsibilities include building modern React frontends and Python backend services while ensuring system reliability. The ideal...Read More>>.

Posted: June 6th, 2026
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London Onsite Fullstack Tech Lead | Java/React Architect

Company IconAND Digital
Location IconLondon

A tech company focused on digital delivery is searching for a Technical Lead - Fullstack to spearhead a complex modernization program. This hands-on role demands leadership in engineering and cloud-native architectures, with a strong emphasis on qual...Read More>>.

Posted: June 6th, 2026
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Java AI Engineering Lead – FinTech (Hybrid)

Company IconClient Server
Location IconLondon

A leading FinTech company in London is looking for a Software Engineering Lead (Java AI) to manage a team of nine engineers. In this hybrid role, you will use AI tools to enhance the software development lifecycle, while providing technical leadershi...Read More>>.

Posted: June 6th, 2026
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Senior Backend Engineer – Data Pipelines, Cloud & ML (Equity)

Company IconArctic Research and Development
Location IconNorth Common

Arctic Research and Development is seeking a Senior Backend Software Engineer to help build the Arctic OS, integrating hardware and machine learning. This full-time role, located just outside Cirencester, focuses on developing data ingestion syste...Read More>>.

Posted: June 6th, 2026
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Full-Stack Software Engineer — JavaScript, LiveView, Elixir

Company IconJava Script Works
Location Icon

Java Script Works is looking for an experienced Software Engineer to join their team in Luton. The ideal candidate will have a strong background in software development and proficiency in programming languages such as JavaScript, LiveView, C++, React...Read More>>.

Posted: June 6th, 2026
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Front-End Software Developer - React in Cambridge - RedTech Recruitment

Company IconJava Script Works
Location IconCambridge

Requirements for Front-End Software Developer Very strong front-end development skills using React You have several years of experience in a commercial role within development You have an eye for UI/UX Design...Read More>>.

Posted: June 6th, 2026
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Full-Stack Javascript Developer - Central London (IT) in London - Nexus Jobs Limited

Company IconJava Script Works
Location IconLondon

Front-End and Back-End Development PositionFor the Back-End part of the position, you must have the following skills:Experience of Node JS or JAVA, PHP, Python - which are preferred - along with strong problem solving and Dat...Read More>>.

Posted: June 6th, 2026
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Frontend Engineer — JavaScript/TypeScript + React

Company IconJava Script Works
Location IconBarton upon Humber

Java Script Works, located in Barton-upon-Humber, is looking for a skilled developer to build and maintain custom JavaScript applications. The ideal candidate will have over 2 years of experience and proficiency in TypeScript, React, NodeJS, HTML5...Read More>>.

Posted: June 6th, 2026
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Lead Backend Engineer for AI & Scalable Services

Company IconWhitespace
Location IconBelfast

A technology firm is looking for a Lead Backend Engineer in Belfast. The role involves leading the backend engineering team, making design choices, and ensuring high-quality software delivery. Candidates should have over 5 years of experience in back...Read More>>.

Posted: June 6th, 2026
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Hybrid Java & PEGA BPM Developer (Contract)

Company IconRED Global
Location Icon

A staffing agency is urgently seeking a Java & PEGA BPM Developer. This mid-senior level position requires strong experience with Java, Spring Boot, Microservices, and hands-on experience with PEGA BPM. The working model is hybrid, with 2 days on-sit...Read More>>.

Posted: June 6th, 2026
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Mid-level Shopify Developer in Stockton-on-Tees - Visualsoft

Company IconJava Script Works
Location Icon

Skills Required Your expertise in Liquid, HTML, CSS, and JavaScript will be crucial in bringing our design concepts to life and pushing the boundaries of what is possible on the Shopify platform. Responsibilities...Read More>>.

Posted: June 6th, 2026
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Remote Python Developer (FastAPI) with AWS - Growth

Company IconClient Server Ltd.
Location IconLondon

Client Server Ltd. is seeking a Python Developer / Software Engineer to join their team in London. This role provides an opportunity to work on scalable backend systems for a leading car insurance tech company.You will enjoy a competitive s...Read More>>.

Posted: June 6th, 2026
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Angular & Python Dev — Cloud-Native AWS Engineer (London)

Company IconNet2Source (N2S)
Location IconLondon

Net2Source (N2S) is looking for an Angular Developer with Python in London, UK. Ideal candidates will have 6-14 years of experience in Angular, AWS, and Python, along with skills in cloud architecture and microservices. The role involves developing s...Read More>>.

Posted: June 6th, 2026
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Full-Stack Developer (React + Python/ AI-enabled Focus)

Company IconClearRoute
Location IconLondon

Role This full-stack developer role requires someone with with a strong front-end focus, responsible for building the Data Portal interface and integrating it with backend services and AI capabilities. The role requires expertise in mo...Read More>>.

Posted: June 6th, 2026
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Senior Client Delivery Lead – SaaS & API

Company IconEML
Location IconLondon

A fintech leader is seeking a Client Delivery Team Lead in Greater London to oversee complex, client-facing projects with a focus on technical execution and product expertise. Candidates should possess 7+ years of project management experience in a t...Read More>>.

Posted: June 6th, 2026
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RPG & Misys Equation Specialist — EOD & API Expert

Company IconJas Gujral
Location IconLondon

A financial services client in London is looking for an experienced RPG Analyst Programmer with 5-8 years in RPG development and proficiency in SQL programming. The role involves analyzing issues, maintaining in-house programs, and providing support...Read More>>.

Posted: June 6th, 2026
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FX Services Full-Stack Engineer (TypeScript/React)

Company IconJava Script Works
Location IconLondon

Java Script Works is looking for a Software Engineer II specializing in FX Services Full-Stack development. Located in Greater London, this role requires proficiency in Python, NodeJS, TypeScript, and React, alongside hands-on experience with SQL dat...Read More>>.

Posted: June 6th, 2026
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Backend Software Engineer — AI-Driven Platform

Company Iconusepassionfruit.com
Location IconLondon

A tech-driven marketing solutions company is seeking a Software Developer to shape the next generation of its AI-native platform. The role involves designing robust features, building scalable backend systems, and collaborating with teams to deliver...Read More>>.

Posted: June 6th, 2026
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UI Developer- Contract in London - Quant Capital

Company IconJava Script Works
Location IconLondon

The Role I am hiring to grow the UI team to develop new features for our exciting frontend product built in React, as well as maintaining existing features. UI Developers Must Have Deep knowledge of JavaScript or Ty...Read More>>.

Posted: June 6th, 2026
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Java Software Engineer – React/TS SPA Specialist (Hybrid)

Company IconLeidos
Location IconHam

Leidos is searching for a Java Software Engineer for a crucial role in Farnborough, offering the flexibility to work from home. The role includes developing solutions for complex technical issues and delivering user-facing capabilities.The...Read More>>.

Posted: June 6th, 2026
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Full-stack Engineer - React, Typescript in Bristol - ADLIB Recruitment

Company IconJava Script Works
Location IconBristol

Expertise and SkillsTo be considered for this position, you should have expertise in React and Typescript. Additionally, you must possess skills in relational database design and SQL, along with experience in Node.js and REST APIs. Desirabl...Read More>>.

Posted: June 6th, 2026
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Full-Stack Engineer (React/Python/C#) - SaaS, Hybrid Glasgow

Company IconRES
Location IconGlasgow

A leading renewable energy company in Glasgow is seeking a Software Engineer to join their Asset Performance Management team. The role involves full-stack development using Python, C#, React, and Node.js, contributing to an innovative SaaS applicatio...Read More>>.

Posted: June 6th, 2026
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Senior Software Engineer (Backend) - Behavioral Security Products

Company IconAbnormal AI
Location Icon

At Abnormal AI, we protect our customers against nefarious adversaries who are constantly evolving their techniques and tactics to outwit and undermine traditional approaches to security. Abnormal is recognized as a top cybersecurity sta...Read More>>.

Posted: June 6th, 2026
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Junior Frontend Developer - Fintech in London - Quant Capital

Company IconJava Script Works
Location IconLondon

Job Description This role will involve some backend but mostly frontend development of the GUI and data display for the Quant Team. Current stack is JavaScript with frameworks with raw HTML5 CSS3 and Python at the back end. This innovati...Read More>>.

Posted: June 6th, 2026
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Senior Java Engineer - Remote/Hybrid, Space Software

Company IconBright Ascension Ltd
Location Icon

Bright Ascension Ltd in the United Kingdom seeks an experienced Senior Java Engineer to contribute to product development within a hybrid working environment. This role involves designing and developing new software products while adhering to best co...Read More>>.

Posted: June 6th, 2026
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Lead Java Engineer — High-Performance, Low-Latency Trading

Company IconSGI
Location Icon

A specialist engineering consultancy in London is seeking a Lead Java Developer to work on high-performance, low-latency trading systems. The ideal candidate will have proven experience in building such systems and handling complex, business-critical...Read More>>.

Posted: June 6th, 2026
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React Front-End Engineer: UI & UX Focus

Company IconJava Script Works
Location IconNewcastle upon Tyne

What You’ll DoDevelop, test, and maintain front-end components using React and other Javascript frameworksWork with UX/UI designers to translate designs into responsive, accessible front-end solutionsCollaborate...Read More>>.

Posted: June 6th, 2026
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