Senior Ruby on Rails Backend Engineer

Company IconStory Terrace Inc.
Location IconLondon

A fast-growing tech company in Greater London is seeking a Senior Backend Engineer to lead the development of scalable backend features. You will collaborate closely with cross-functional teams and contribute to the technical direction of projects. T...Read More>>.

Posted: January 11th, 2026
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Low Latency Trading & Observability SRE – Elite Quant Hedge Fund

Company IconWinston Fox
Location IconLondon

Low Latency Trading & Observability SRE / Platform Engineer / Production Engineer sought to join an elite Multi-Strategy Quant Hedge Fund with $40BN+ in Assets Under Management. Our client is one of the world’s top Hedge Funds who are...Read More>>.

Posted: February 28th, 2026
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Founding AI Engineer - Build the Hospitality OS with Equity

Company IconJack & Jill/External ATS
Location IconLondon

A profitable AI startup is looking for a Founding Engineer to join their high-velocity team to automate hospitality workflows using ML and AI. This role involves full-stack feature development with TypeScript and offers significant equity, enabling c...Read More>>.

Posted: March 31st, 2026
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Hybrid Frontend Tech Lead - Next.js, React & TypeScript

Company IconHT Recruit
Location IconLondon

A leading technology company in London is seeking a Tech Lead Front End Specialist to lead their frontend development team. In this hybrid position, you will design and optimize high-performance applications while mentoring engineers and ensuring cod...Read More>>.

Posted: March 6th, 2026
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Industry Practice Lead (Subject Matter Expert) Credit & Lending - Banking

Company IconMoody's Investors Service
Location IconLondon

At Moody's, we unite the brightest minds to turn today’s risks into tomorrow’s opportunities. We do this by striving to create an inclusive environment where everyone feels welcome to be who they are—with the freedom to exchange ideas, th...Read More>>.

Posted: March 6th, 2026
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Senior Staff Forward Deployed Developer, Google Cloud Platform, Applied AI

Company IconGoogle Inc.
Location IconLondon

Google – London, UK Bachelor’s degree or equivalent practical experience. 8 years of experience in software development. 8 years of experience testing, and launching software products, and 3 years of experienc...Read More>>.

Posted: March 6th, 2026
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Applied AI Engineer, Applied Science - Paris (Internship)

Company IconThe Rundown AI, Inc.
Location IconLondon

**About Mistral**At Mistral AI, we believe in the power of AI to simplify tasks, save time, and enhance learning and creativity. Our technology is designed to integrate seamlessly into daily working life.We democratize AI through high-performance, op...Read More>>.

Posted: March 11th, 2026
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Backend Engineer, AI-Powered App Delivery & Integrations

Company IconCogna
Location IconLondon

A pioneering technology firm in Greater London is seeking a skilled backend engineer to implement and deliver backend services for their AI-powered Software Factory. You will build core backend features and design complex data pipelines while collabo...Read More>>.

Posted: April 4th, 2026
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Senior Python Backend Engineer | AI-Powered FinTech

Company IconXelix
Location IconLondon

A fast-paced technology company in Greater London is seeking a Senior Python Developer to join their back-end development team. In this role, you will implement scalable solutions in Python and develop REST APIs. You should have 4+ years of professio...Read More>>.

Posted: April 4th, 2026
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Senior Backend Engineer — AI Infrastructure & Scale

Company IconGradient Labs
Location IconLondon

A technology company in Greater London is looking for a Backend Engineer to contribute to building resilient systems for AI agents. The role involves owning systems from architectural decisions to production, focused on reliability and scaling. Candi...Read More>>.

Posted: April 10th, 2026
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Principal Engineer: Next-Gen Digital Experiences (Hybrid)

Company IconOliver Bernard
Location IconLondon

A leading tech company in London is looking for a Principal Software Engineer to lead the technical direction on innovative projects. This senior hands-on role requires expertise in both backend and frontend technologies, system architecture, and str...Read More>>.

Posted: April 11th, 2026
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Caseworker Manager (Immigration & Asylum) / Sindhu Immigration Services

Company IconILPA - Immigration Law Practitioners'​ Association Ltd
Location IconLondon

Overview Job title: Caseworker Manager (Immigration & Asylum) Location: Oxford Circus, London (Office Based Full Time Role) Deadline: The closing date for applications is...Read More>>.

Posted: April 11th, 2026
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Junior Quant Developer - C# - London - £75,000 + Comps

Company IconHunter Bond
Location Icon

Junior Quant Developer - C# - London - £75,000 + Comps Location: London Type: Hybrid We’re representing a leading global trading firm seeking a talented Risk Technology Developer to join their Front Office Technology g...Read More>>.

Posted: April 11th, 2026
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Senior C++ Software Developer - Up to £300k 1st Year Compensation - Elite Scaling FinTech Firm [...]

Company IconHunter Bond
Location IconLondon

Overview Salary: Up to £300k Total Compensation 1st Year Comp Location: London (Hybrid) Key Focus: Low-level systems, performance tuning, and modern C++ An elite tech-driven firm is looking fo...Read More>>.

Posted: April 11th, 2026
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Senior Software Engineer (Infrastructure) at well-funded Series B AI startup

Company IconJack & Jill/External ATS
Location IconLondon

Senior Software Engineer This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers. She will pick the best candidates from Jack's network. The next step is to speak to Jack. Co...Read More>>.

Posted: April 11th, 2026
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Lead DevOps Engineer: CI/CD & Cloud Automation

Company IconMethods Business and Digital Technology Ltd
Location IconLondon

A leading technology firm in Greater London is seeking a Lead DevOps Engineer to take ownership of delivery platforms and influence technical direction across teams. This role requires strong experience in designing CI/CD pipelines, infrastructure as...Read More>>.

Posted: April 11th, 2026
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Applied AI ML - Senior Associate - Machine Learning Engineer

Company IconJ.P. MORGAN
Location IconLondon

Job Description Join a high‑performing team of applied AI experts to drive innovation and new capabilities in the Commercial & Investment Bank. As an Applied AI / ML Senior Associate Machine Learning Engineer in the Applied AI...Read More>>.

Posted: April 11th, 2026
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Senior Front-End Engineer – Real-Time Web UI

Company IconTalan Group
Location IconLondon

A consulting firm is seeking a front-end developer for their Issuemaster real-time web application in Greater London. The ideal candidate will have at least 4 years of experience with Angular, 3 years with Typescript, and expertise in real-time web a...Read More>>.

Posted: April 11th, 2026
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Senior ML Researcher - Betting Analytics & AI Innovation

Company IconLongshot Systems Ltd
Location IconLondon

A leading sports analytics company in London is looking for a Machine Learning Researcher to enhance their predictive modeling capabilities. You will design, test, and implement machine learning models in Python, with significant autonomy to explore...Read More>>.

Posted: April 11th, 2026
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Senior React Developer - Hybrid London, Greenfield Frontend

Company IconHunter Bond
Location Icon

A leading tech recruitment agency is seeking a Senior React Developer to join a dynamic FinTech firm in London. This pivotal role involves building complex applications that support trading globally, ensuring a seamless user experience. Candidates sh...Read More>>.

Posted: April 11th, 2026
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Hybrid BI Developer: Power BI & Data Analytics

Company IconMunich Re
Location IconLondon

A leading insurance provider is seeking a BI Developer to join their team in Greater London. The role requires strong expertise in Power BI and SQL, along with experience in designing BI solutions. The candidate will support data analytics, develop i...Read More>>.

Posted: April 11th, 2026
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Remote Senior Android Engineer AI-First, MVVM & iOS Support

Company IconGravitas Recruitment Group (Global) Ltd
Location IconLondon

A technology recruitment agency is seeking a Senior Android Engineer to lead the development of a client's Android Mobile App. This remote-first role includes responsibilities such as app maintenance, feature development with Kotlin, and collaboratio...Read More>>.

Posted: April 11th, 2026
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Senior JavaScript Engineer – AI APIs & Cloud (Hybrid)

Company IconImmediate Media Co
Location IconLondon

A well-known media company based in Greater London is seeking a Senior JavaScript Engineer to design and build scalable APIs and services. The role requires expertise in JavaScript, Node.js, and cloud services like AWS. Responsibilities include devel...Read More>>.

Posted: April 17th, 2026
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FX Technology – Cross Border Payments, Senior Developer (VP)

Company IconCitigroup Inc.
Location IconLondon

About Citi As the world’s most global bank, Citi gives you the tools to be a trailblazer. We’re not just building technology; we’re building the future of banking. With thousands of employees located around the globe, we are an i...Read More>>.

Posted: April 17th, 2026
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Senior Data Analyst — International E-commerce (Chinese Speaking)

Company IconLingo-nova
Location IconLondon

Senior Data Analyst — International E-commerce (Chinese Speaking) London, United Kingdom (On-site) Industry: International E-commerceExperience Level: Senior Role Overview We are looking for a Se...Read More>>.

Posted: April 17th, 2026
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Senior Frontend Engineer — Build Financial OS (React/Next)

Company IconIncard
Location IconLondon

A tech startup in Greater London is seeking an experienced frontend developer to join their lean team. The role requires expert knowledge in React, TypeScript, and Tailwind, along with familiarity with NextJS. Candidates who have experience in backen...Read More>>.

Posted: April 17th, 2026
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Senior React+TypeScript Frontend Engineer – UI & Scale

Company IconSoSafe
Location IconLondon

A leading cybersecurity firm in Greater London is seeking an experienced frontend developer to drive impactful user experiences and scalable architecture. The ideal candidate has proven expertise in React and TypeScript, excellent skills in frontend...Read More>>.

Posted: April 17th, 2026
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Presales Solutions Architect – Cisco, Aruba, LAN Enterprise, Security

Company IconInfraView - Specialist Cloud & IT Infrastructure Technology Recruitment
Location IconLondon

Presales Solutions Architect – Cisco, Aruba, LAN Enterprise, Security - £70K - £80K + £5K car allowance + uncapped comms - 2-3 days a week in the office.Working with an epic multi-award winning, multi-vendor consultancy who are looking...Read More>>.

Posted: April 17th, 2026
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Senior Frontend Engineer — Next.js & Design Systems (Remote)

Company IconDOHE Europe LTD
Location IconLondon

A global EdTech company is seeking a Senior Frontend Engineer to build five portals and the EdTech Hub frontend from scratch. The ideal candidate has significant experience with React and Next.js, and hands-on knowledge of TypeScript and state manage...Read More>>.

Posted: April 17th, 2026
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Principal Migrations and Modernisations Speclialist, AGS UK & Ireland Specialised Sales Team

Company IconAmazon Web Services (AWS)
Location IconLondon

Overview Would you like to be part of a team focused on increasing the adoption of AWS Migrations and Modernisation business in the UK and Ireland? Do you have the business skills and technical background necessary to drive revenue and...Read More>>.

Posted: April 17th, 2026
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Azure Web Apps Engineer: Angular/React/Next.js on AKS

Company IconHCLTech
Location IconLondon

A global technology company is seeking a highly skilled Azure Web Application Developer to design, develop, and deploy cloud-native applications on Microsoft Azure. The ideal candidate will have proficiency in Angular, React, or Next.js, along with e...Read More>>.

Posted: April 17th, 2026
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Founding Software Engineer AI Tools for Legal Ops

Company IconJack & Jill/External ATS
Location IconLondon

A promising legal tech startup seeks a Software Engineer to be its first dedicated engineering hire. You will design and build AI tools that automate legal workflows, taking ownership of the product from frontend to infrastructure. The ideal candidat...Read More>>.

Posted: April 17th, 2026
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Senior Frontend Engineer - AI-Driven Simulation UI (Remote)

Company IconPhysicsX
Location IconLondon

A leading deep-tech company in London is seeking a Senior Frontend Software Engineer to develop an advanced simulation platform. In this role, you will craft rich 3D visualizations and optimize data-heavy interfaces while collaborating within a cross...Read More>>.

Posted: April 17th, 2026
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Full-Stack Engineer — Build Trading Systems, Early Impact

Company IconSeaport Global Holdings LLC
Location IconLondon

A growing financial technology firm in the United Kingdom is looking for a Full-Stack Engineer to develop key components of their trading system. Ideal candidates will have a background in Computer Science or similar fields and proven coding experien...Read More>>.

Posted: April 17th, 2026
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Trading Data Analyst: AI-Driven Insights & Pipelines

Company IconMarlin Selection Recruitment
Location IconLondon

A global metals trading firm in Greater London seeks a highly analytical Data Analyst to support trading and operations teams. The role involves building Python-based data pipelines, enhancing data quality, and delivering insights across market datas...Read More>>.

Posted: April 17th, 2026
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Senior Frontend Engineer – API-Driven Web Features

Company IconOliver Bernard
Location IconLondon

A growing tech company in Greater London is seeking a Senior Frontend Engineer to enhance their web products in the user-data space. You will develop new features and improve existing ones while collaborating with engineers, product, and design teams...Read More>>.

Posted: April 17th, 2026
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Senior Backend Engineer: Scalable Green Energy Platform

Company IconOctopus Group
Location IconLondon

A leading energy technology company in London is looking for an experienced backend developer to contribute to products that make energy more flexible for customers. You will need 5+ years in web application development, expertise in Python/Django, a...Read More>>.

Posted: April 17th, 2026
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Python Backend Engineer — AI Platform & Systems (Equity)

Company IconNevis
Location IconLondon

A cutting-edge AI startup is seeking a Software Engineer (Python) to help build an advanced AI wealth management platform. The ideal candidate will have over 4 years of experience in Python engineering, focusing on AI platforms and backend systems. R...Read More>>.

Posted: April 17th, 2026
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Founding AI Engineer (£100k–150k + Equity) at Pharosyn

Company IconJack & Jill/External ATS
Location IconLondon

Job Title: Founding AI Engineer Salary: £100k–150k + Equity Company Description: Pharosyn - EF-backed AI startup for pharma Job Description: Join Pharosyn as a founding engineer to automate co...Read More>>.

Posted: April 17th, 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: April 19th, 2026
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Python Automation Engineer - CI/CD & Cloud

Company Iconbluedog cyber security
Location IconLondon

A cybersecurity firm based in Greater London is looking for a Python Developer with at least 2 years of experience. The role involves developing and maintaining Python scripts for automation and managing CI/CD pipelines to ensure smooth application d...Read More>>.

Posted: April 19th, 2026
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Senior Backend Engineer – Real-Time Casino Platform (Remote)

Company IconJack and Jill AI
Location IconLondon

A modern betting platform is seeking a Senior Backend Engineer to join their Casino UX team. In this remote role, you will design robust backend services and RESTful APIs using Python and PostgreSQL, collaborating with a cross-functional squad to enh...Read More>>.

Posted: April 19th, 2026
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Staff AI Engineer (£120k-150k + Equity) at Covecta

Company IconJack & Jill/External ATS
Location IconLondon

Job Title: Staff AI EngineerSalary: £120k-150k + EquityCompany Description: Covecta - Seed-stage Agentic AI platform backed by Salesforce VenturesJob Description: As the most senior AI hire, you will lead the technical dir...Read More>>.

Posted: April 20th, 2026
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Senior AWS DevOps Engineer - Cloud CI/CD & Automation

Company IconIBM Computing
Location IconLondon

A leading technology company in Greater London is seeking a Senior AWS DevOps Engineer to lead projects and drive DevOps initiatives. The role involves scripting, managing CI/CD pipelines, and utilizing AWS services. Candidates should possess strong...Read More>>.

Posted: April 20th, 2026
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Senior AWS Cloud & DevOps Engineer (ECS/EKS, IaC)

Company IconOPS Brasil
Location IconLondon

A leading cloud consulting firm in Greater London is looking for a highly skilled DevOps Engineer with expertise in AWS, specifically Amazon ECS, and EKS. The ideal candidate will design, deploy, and optimize cloud infrastructure while collaborating...Read More>>.

Posted: April 20th, 2026
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Senior Frontend Tech Lead - React/JS for Scalable Trading

Company IconJPMorgan Chase & Co.
Location IconLondon

A major global financial institution is seeking a Software Engineer to join their F&O Execution Technology team in Greater London. You will play a crucial role in enhancing and delivering market-leading technology products. The ideal candidate will h...Read More>>.

Posted: April 22nd, 2026
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Full Stack Engineer - React, Node.Js, TypeScript, JavaScript

Company IconConnecting Education
Location IconLondon

The company… Our client is an ambitious, fast-growing EdTech disruptor. They exist to create a world where educators are liberated from administrative burdens and empowered to focus entirely on what matters most—nurturing the poten...Read More>>.

Posted: April 24th, 2026
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Staff Backend Engineer, AI-Driven Agent Platform

Company IconTide
Location IconLondon

A leading fintech company in the UK is seeking a Staff-level Backend Engineer (AI) to enhance backend systems and integrate Generative AI capabilities. Responsibilities include building core services, designing reliable services, and collaborating ac...Read More>>.

Posted: April 24th, 2026
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Back-End Engineer for Latency-Sensitive Trading Systems

Company IconTP ICAP Group
Location IconLondon

TP ICAP Group is seeking a Back-End Engineer to design and maintain server-side applications for high-volume data environments. The role involves close collaboration with Architects and Trading SMEs, focusing on system reliability and best practices...Read More>>.

Posted: April 25th, 2026
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Remote Power BI & Power Apps Developer — Data Architect

Company IconMethods Business and Digital Technology
Location IconLondon

Methods Business and Digital Technology is looking for a Power BI / Power Apps Developer to join their Public Sector Business Unit. This permanent role, mainly remote with travel requirements, focuses on designing, building, and maintaining impactful...Read More>>.

Posted: April 26th, 2026
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