Lead Software Engineer - Java - Post Trade Technology

Company IconJPMorgan Chase & Co.
Location IconLondon

Join us to shape the future of financial technology and make a meaningful impact on your career. You’ll collaborate with talented professionals, solve complex challenges, and help build trusted market-leading products. We value creativity, in...Read More>>.

Posted: April 17th, 2026
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Senior Software Engineer (SEO Product, Java)

Company IconWise
Location IconLondon

Senior Software Engineer – SEO Product (Java) Full-time Compensation: GBP 87,500 – GBP 111,000 – yearly Wise is a global technology company, building the best way to move and manage the world’s mone...Read More>>.

Posted: May 17th, 2026
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Senior Software Engineer - Imaging Hardware & Real-Time

Company IconConvergent Research
Location IconLondon

Convergent Research is seeking an entrepreneurial Software Engineer to take ownership of the software systems for our multi-photon microscopy platform. This broad, hands-on role involves hardware control, data acquisition, and real-time analysis....Read More>>.

Posted: May 20th, 2026
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Senior Software Engineer (AI)

Company IconInvestCloud Ltd.
Location IconLondon

IC London England77 Shaftesbury AveSoho 5th FloorLondon, LND W1D5DU, GBR InvestCloud is a private‑equity backed platform business supporting over $6 trillion of assets globally, with deep, long‑standing relationships a...Read More>>.

Posted: May 20th, 2026
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Senior Software Engineer (AI)

Company IconInvestCloud, Inc.
Location IconLondon

Role Context InvestCloud is a private-equity backed platform business supporting over $6 trillion of assets globally, with deep, long-standing relationships across the asset and wealth management ecosystem. Private markets are rapidly...Read More>>.

Posted: May 20th, 2026
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Senior Software Engineer: Python/Django & TypeScript Architect

Company IconJava Script Works
Location IconLondon

Java Script Works in London is seeking a Senior Software Engineer to design, develop, and maintain robust software solutions using Python and TypeScript. The role involves optimizing existing systems through performance tuning and code refactoring. T...Read More>>.

Posted: May 20th, 2026
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Senior AI Software Engineer

Company IconLendable Ltd
Location IconLondon

# Senior AI Software Engineer (Internal Automations)* London* Full Time (Permanent)* Remote* AI EngineeringApply for this role## About the roleWe're looking for a hands-on AI Engineer to join our Internal Automation team at Lendable and help us make...Read More>>.

Posted: May 20th, 2026
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Quantitative Developer, Risk Tech — Python & AWS

Company IconMillennium
Location IconLondon

Millennium is seeking a Quantitative Developer to join our Risk Technology team in London. The successful candidate will leverage their skills in Python, AWS, and data manipulation to provide risk managers with data-driven insights on our fund's risk...Read More>>.

Posted: May 20th, 2026
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Snr Associate Director, Early-Stage Analytical Development

Company IconJazz Pharmaceuticals
Location IconLondon

Jazz Pharmaceuticals in Greater London is seeking a highly skilled individual for a role focused on analytical development. Reporting to the Senior Director, you will lead activities related to analytical methods for drug development. The position re...Read More>>.

Posted: May 20th, 2026
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Senior Front-Office Java Developer for Crypto HFT

Company IconFasanara Capital
Location IconLondon

Fasanara Capital is looking for a Front-Office Developer specializing in high-frequency trading for cryptocurrencies. This role involves designing, implementing, and optimizing trading algorithms and infrastructure, requiring at least 5 years of expe...Read More>>.

Posted: May 20th, 2026
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AIML Software Engineer, AI for Science

Company IconGlaxoSmithKline
Location IconLondon

Overview At GSK, we are actively working on building a future in which state‑of‑the‑art software, Artificial Intelligence (AI) and Machine Learning (ML) enable us to develop new therapies and personalized medicines that drive bet...Read More>>.

Posted: May 20th, 2026
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Lead Software Engineer - Hardware Design Platform|Flexible

Company IconCircuit Mind
Location IconLondon

Circuit Mind is seeking a Lead Software Engineer in Greater London to take full ownership of backend development across their products. You will collaborate with various engineering teams to tackle challenges in hardware engineering, leveraging a mod...Read More>>.

Posted: May 20th, 2026
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Software Engineer IV

Company IconIndeed, Inc., c/o CT Corporation (Indeed.com)
Location IconLondon

Your job Staffing Solutions is the technology group within Indeed responsible for building the software that powers the Indeed Flex temporary staffing marketplace, managed-service provider service, payroll, and other staffing-related s...Read More>>.

Posted: May 20th, 2026
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Software engineer, generative AI (UK)

Company Iconwriter.com
Location IconLondon

About the role We're looking for an exceptional software engineer, generative AI to join our rapidly evolving team at WRITER. In this pivotal role, you'll be at the forefront of expanding human capacity by building the next generation...Read More>>.

Posted: May 20th, 2026
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AI for Science: Cloud-Native ML Software Engineer

Company IconGlaxoSmithKline
Location IconLondon

GlaxoSmithKline is seeking a Software Engineer to join the AI for Science team. This role involves designing scalable infrastructure and software solutions for large-scale AI models, enabling scientific research with cloud-native technologies....Read More>>.

Posted: May 20th, 2026
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Lead Software Engineer - Autonomous AI & Defence Systems

Company IconOho Group
Location IconLondon

Oho Group, a rapidly-growing defence start-up in London, is seeking a Lead Software Engineer to drive technical ownership and shape system architecture. You will mentor engineers and work on cutting-edge AI-driven systems that support national securi...Read More>>.

Posted: May 20th, 2026
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Lead Quantitative Developer - Python, Algo Trading

Company IconGeo Alpha
Location IconLondon

Geo Alpha is seeking an experienced quantitative developer to join our London team. This role requires proven expertise in Python development within data-intensive environments, particularly in Algorithmic Trading and Machine Learning. The successful...Read More>>.

Posted: May 20th, 2026
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Senior Backend Engineer, Music Rights Platform

Company IconSpotify
Location IconLondon

Spotify is looking for a backend engineer for the Rights Systems team to design and implement backend services that power the Spotify Rights Center. The role involves collaborating closely with product teams, ensuring scalability and maintainability...Read More>>.

Posted: May 20th, 2026
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Scale Software Engineer - Cloud, Go/TypeScript, Kubernetes

Company IconSky UK Limited
Location IconLondon

Sky UK Limited is seeking a skilled software developer to join their team in Greater London. In this role, you will develop and deliver high-quality software, collaborate with internal teams, and mentor other developers. Key requirements include comm...Read More>>.

Posted: May 20th, 2026
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Senior ASP.NET MVC Developer – Investment Tech

Company IconJava Script Works
Location IconLondon

Java Script Works is seeking a Senior ASP.NET MVC Developer to join their London team. This full-time role offers a salary of up to £50K and requires strong skills in C#, SQL Server, and front-end technologies like JavaScript, HTML, and CSS. The ide...Read More>>.

Posted: May 20th, 2026
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Senior Backend Engineer, Subscriptions Platform

Company IconSpotify AB
Location IconLondon

Spotify AB is looking for a Backend Engineer in London to design and run scalable Java services for their merchandising platform. The role focuses on building systems to optimize subscription experiences for over 700 million users. Collaboration w...Read More>>.

Posted: May 20th, 2026
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Senior Frontend Architect - Remote, High-Impact UI Systems

Company IconBLP
Location IconLondon

BLP is seeking a Full-Stack Developer for its London office. The successful candidate will focus on frontend development using TypeScript and React, driving architectural decisions, and mentoring fellow engineers. With a strong emphasis on building s...Read More>>.

Posted: May 20th, 2026
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Senior Calypso Software Engineer – Java & API Specialist

Company IconNexus Jobs Limited
Location IconLondon

Nexus Jobs Limited is looking for a Senior Calypso Software Developer in London, United Kingdom. This role involves working with the Calypso API and Oracle DBMS to support back office processes like Settlements and collateral management. Ideal candid...Read More>>.

Posted: May 20th, 2026
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Salesforce Developer & Web Tech Specialist

Company IconJava Script Works
Location IconLondon

Job Requirements Oriented methodologies and approaches Preferred expert knowledge of relational databases and data modelling Preferred proficiency in Javascript, AJAX, SQL, HTML, CSS. This is a uni...Read More>>.

Posted: May 20th, 2026
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Python Developer: Secure Cloud & API (DV Eligible)

Company IconCGI
Location IconLondon

CGI is seeking experienced Python Developers in Greater London to design, develop, and maintain scalable applications. The successful candidates will work with cross-functional teams, utilizing their skills in Python and AWS. Responsibilities include...Read More>>.

Posted: May 20th, 2026
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Senior Backend Engineer, Scalable Data Infrastructure

Company IconEncord
Location IconLondon

Encord is seeking an experienced backend engineer to build and maintain systems that handle large volumes of data. Located in Greater London, you will take ownership of projects and work closely with a collaborative team. Strong experience in Post...Read More>>.

Posted: May 20th, 2026
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Android Developer - Fintech (Kotlin/Java, MVVM)

Company IconQuant Capital
Location IconLondon

Quant Capital is searching for an Android Developer to join their fintech team in London. Candidates should have at least 3 years of Android development experience, be proficient in Kotlin and Java, and be familiar with MVP and MVVM design patterns....Read More>>.

Posted: May 20th, 2026
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Python Backend Engineer — Equity + Hybrid Work

Company IconAbound
Location IconLondon

Abound is seeking a Software Engineer to build high-quality, reliable backend systems within our mortgage engineering team. You'll own backend features from concept through delivery, working with technologies such as Python, Django, RESTful APIs, and...Read More>>.

Posted: May 20th, 2026
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Lead Software Engineer, Global Rights & Royalty Platform

Company IconSony Music Entertainment
Location IconLondon

Sony Music Entertainment in London is looking for a Lead Software Engineer to join their Pub Admin team. You will develop a modern rights and royalty platform, working with a cross-functional team to create high-quality experiences for artists. The i...Read More>>.

Posted: May 20th, 2026
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Senior Research Software Engineer (Neural and Behavioural Data)

Company IconPython Software Foundation
Location IconLondon

Senior Research Software Engineer (Neural and Behavioural Data) A role at the Sainsbury Wellcome Centre (SWC) at UCL dedicated to developing reliable software solutions for analysing large volumes of extracellular electrophysiological...Read More>>.

Posted: May 20th, 2026
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Remote Junior Java Developer – Fintech, Equity Options

Company IconWorksHub
Location IconLondon

WorksHub is hiring a Junior Java Developer to join a leading fintech firm based in Central London. This home-based role comes with a competitive salary of up to £60,000 plus benefits and options. Ideal candidates will have a strong foundation in Cor...Read More>>.

Posted: May 20th, 2026
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Fintech C# .NET Developer | Greenfield Projects

Company IconJava Script Works
Location IconLondon

Java Script Works is seeking a C# .NET Developer to join our team in London, United Kingdom. This full-time position requires strong skills in ASP.NET MVC, C#, SQL, and JavaScript. The role involves greenfield development and working with data analyt...Read More>>.

Posted: May 20th, 2026
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Senior Research Software Engineer: Neural & Behavioral Data

Company IconPython Software Foundation
Location IconLondon

The Python Software Foundation is hiring a Senior Research Software Engineer at the Sainsbury Wellcome Centre (SWC) at UCL. This role involves developing software solutions for analyzing large volumes of electrophysiological and behavioural data....Read More>>.

Posted: May 20th, 2026
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Data & Software Engineer: Build Scalable Internal Tools

Company IconXcede Recruitment Solutions
Location IconLondon

Xcede Recruitment Solutions in London is seeking a hands-on Data & Software Engineer to enhance their Technology & Data team. This role involves developing internal tools, automating processes, and creating scalable systems that support business o...Read More>>.

Posted: May 20th, 2026
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Power BI & Data Insights Developer

Company IconMarks and Spencer
Location IconLondon

Marks and Spencer is seeking a skilled professional to join the Food Data & Analytics team in London. In this role, you'll collaborate with analysts and business partners to create effective BI solutions that enhance data-driven decisions. Key tasks...Read More>>.

Posted: May 20th, 2026
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Senior SDR: Enterprise Pipeline Builder (Remote, Equity)

Company IconCoder
Location IconLondon

Coder is seeking a Senior Sales Development Representative to drive growth by generating qualified pipeline for Enterprise Account Managers. This remote role involves targeted prospecting, conducting multi-channel outreach, and collaborating with mar...Read More>>.

Posted: May 20th, 2026
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Field Sales Business Developer — Car + Bonus (UK)

Company IconParkside
Location IconLondon

Job Title: Business Developer (Field Sales)Location: UK (Field-Based)Salary: Up to £30,000 (DOE) + Target-Driven BonusBenefits: Fully Expensed Company Car + Additiona...Read More>>.

Posted: May 20th, 2026
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Business Developer - Renewable energy

Company IconElawan Energy
Location IconLondon

Your mission We are looking for a new member to join our Business Development team in the United Kingdom to expand and develop our pipeline of UK assets. The job is based in London and involves frequent domestic travel. R...Read More>>.

Posted: May 20th, 2026
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Senior .NET Software Engineer – End-to-End SDLC Lead

Company IconCapital On Tap
Location IconLondon

Capital On Tap is looking for a Software Engineer to build scalable solutions using .NET technology in a hybrid role based in London. You will own the SDLC, partnering with Product Managers and QA while emphasizing teamwork.The ideal candid...Read More>>.

Posted: May 21st, 2026
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Stellar AI: Senior Software Engineer

Company IconCloudDevs
Location IconLondon

We are seeking experienced Software Engineers to work on projects across the following tech stacks:Go, ReactThis is an open-ended contract opportunity, structured around project-based work with no set schedules or minimum...Read More>>.

Posted: May 21st, 2026
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Senior Backend Engineer - Golang, Data Pipelines

Company IconCoinDesk
Location IconLondon

CoinDesk is seeking a Lead Backend Developer to join the Data Engineering Team in Greater London. This role involves strategic initiative ownership, operational governance, and leading the delivery of complex systems. Applicants should possess over s...Read More>>.

Posted: May 21st, 2026
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DevOps Software Engineer Lead - Threat Intelligence, SEAR

Company IconAPPLE
Location IconLondon

Summary As part of Apple’s Security Engineering & Architecture (SEAR) organization, you’ll join our mission to create the world’s most secure products. We are committed to building groundbreaking tools that empower our threat int...Read More>>.

Posted: May 21st, 2026
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Lead Software Engineer - Java / Python - Public Cloud Engineering

Company IconJ.P. MORGAN
Location IconLondon

Job Description We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible. The Cloud Engineering Acceleration team accelerates delivery of strategic public cloud platf...Read More>>.

Posted: May 21st, 2026
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GenAI Software Engineer — Hybrid FinTech, Scale AI Systems

Company IconAtarus
Location IconLondon

Atarus, a high-growth FinTech company in London, is seeking a Software Engineer specialized in AI to join their product-led engineering team. This role emphasizes designing large-scale systems, with a focus on business outcomes in a hybrid working...Read More>>.

Posted: May 21st, 2026
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Java (Kotlin) Developer (Agile, Test-Driven)

Company IconCitigroup Inc.
Location IconLondon

Java (Kotlin) Developer (Agile, Test-Driven) – VP Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We...Read More>>.

Posted: May 21st, 2026
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Senior Java Developer: Lead & Scale High-Performance Apps

Company IconHopeghospital
Location IconLondon

Hopeghospital in Greater London is seeking a Senior Java Developer to design and maintain high-quality Java applications. The role involves collaborating with cross-functional teams to deliver scalable solutions, optimizing performance, and mentoring...Read More>>.

Posted: May 21st, 2026
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Adobe LiveCycle Developer: Dynamic Forms & Workflows

Company IconJava Script Works
Location IconLondon

A software development company in London is seeking an experienced Adobe Livecycle Developer to create and maintain dynamic PDF forms and process workflows. The ideal candidate will have a minimum of 2 to 3 years of experience with Adobe Livecycle, J...Read More>>.

Posted: May 21st, 2026
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Trading Developer x 2

Company IconSmartestEnergy Limited
Location IconLondon

Yearly salary 60,000.00 GBP - 75,000.00 GBP We are seeking skilled Trading Developers to design and deliver high-performance trading tools and automated processes that enable profitable trading across multiple markets and commodities. Yo...Read More>>.

Posted: May 21st, 2026
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Senior Backend Engineer — Go & Distributed Systems

Company IconMonzo
Location IconLondon

Monzo is seeking a backend engineer to join its dynamic team in Greater London. In this role, you will collaborate with product managers, designers, and engineers to build resilient systems that power the Monzo banking experience. Strong experienc...Read More>>.

Posted: May 21st, 2026
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System Architect (Typescript/Javascript/REACT)

Company IconSpencer Rose Ltd
Location IconLondon

System Architect (TypeScript/JavaScript/REACT) City of London - Hybrid Up to £130,000 per annum + annual discretionary bonus On behalf of a Leading financial services organisation, I am seeking an experienced System...Read More>>.

Posted: May 21st, 2026
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