Python Counterparty Credit Risk Senior Developer, Vice President

Company IconCiti
Location IconLondon

The Analytical Calculation Engine (ACE) Development Team is a group within Citi Financial Risk Technology, responsible for developing and implementing the applications used for derivatives credit risk and exposure calculations firm‑wide....Read More>>.

Posted: June 1st, 2026
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Head of Network Operations Analytics and Automation in Chester - Bank of America

Company IconJava Script Works
Location IconChester

OverviewAutomation Technologies and AI/ML-Driven Platforms and Analytics Tools; in the realm of automation technologies and AI/ML-driven observability platforms and analytics tools, the following are essential:Terraform...Read More>>.

Posted: June 1st, 2026
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Backend Engineer: C#/.NET, AWS & Kubernetes - Hybrid

Company IconClient Server Ltd.
Location IconLondon

Client Server Ltd. is seeking a Backend Software Engineer with expertise in C# and cloud technologies to join their London office and work on a 12-month Fixed Term Contract. You'll lead the migration of services to AWS and Kubernetes, collaboratin...Read More>>.

Posted: June 1st, 2026
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Senior Software Developer (Python/React). Job in London LilyLifestyle Jobs

Company IconUnited Cerebral Palsy of Georgia
Location IconLondon

We are currently working with a Tier 1 Investment Bank and are actively seeking multiple Senior Software Developers proficient in both Python and React/Typescript.RequirementsExtensive hands‑on development experience with...Read More>>.

Posted: June 1st, 2026
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Senior Data Platform Engineer (Python & AWS) - Remote

Company IconClient Server
Location IconLondon

Client Server is seeking a Senior Data Platform Engineer to lead the design and evolution of scalable analytics platforms and ETL pipelines. This role focuses on modernising legacy systems using Python and AWS within a serverless architecture....Read More>>.

Posted: June 1st, 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 1st, 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 1st, 2026
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Senior Platform Architect — Cloud, API & AI-Ready | Hybrid

Company IconLloyd's
Location IconLondon

Lloyd's in Greater London seeks an experienced architect to define and maintain target and transitional platform architectures. The successful candidate will engage senior leaders and oversee architectural standards in a complex, regulated environ...Read More>>.

Posted: June 1st, 2026
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Senior Python Developer — Front Office Risk Tech (LLM/RAG)

Company IconCiti
Location IconBelfast

Citi is looking for an experienced Applications Development Senior Programmer Analyst in Belfast. This role requires participation in developing and implementing application systems in collaboration with the Technology team.As part of the W...Read More>>.

Posted: June 1st, 2026
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Co-Founding Full Stack Developer (Java/ React/ AWS)

Company Iconfyaora
Location IconLondon

OverviewCo-Founding Full Stack Developer (Java/ React/ AWS). Join the Revolution of On-Demand Services with Gler. (Backed by Fyaora, the backbone of next-gen platforms). Location: Remote / UK Preferred. Compensation: Equity up to 1,000...Read More>>.

Posted: May 31st, 2026
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Lead Test Automation Engineer - Java/Selenium

Company IconJPMorgan Chase & Co.
Location IconBournemouth

A leading global financial services firm is seeking a Lead Software Engineer - Test Automation in Bournemouth. This role involves delivering innovative software solutions and improving operational stability through automation techniques. Candidates s...Read More>>.

Posted: May 31st, 2026
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Go Backend Engineer — AI‑Powered FinTech

Company IconZILO
Location IconLondon

A leading FinTech company in the UK is seeking a Software Engineer (Go) to develop high-performance back-end services for financial applications. The ideal candidate will have a Bachelor’s in Computer Science and experience with JavaScript, HTML, a...Read More>>.

Posted: May 31st, 2026
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Senior Java Engineer - Remote, 70K, Health & Pension

Company IconAscent People Ltd
Location IconSouth Yorkshire

A leading recruitment agency is seeking a Senior Java Developer to join their team, focusing on a cutting-edge CRM SAAS solution. In this role, you will work throughout the software lifecycle, from requirements analysis to release management, in a pr...Read More>>.

Posted: May 31st, 2026
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Senior C# Backend Architect — Greenfield Payments Platform (London, 3 days in-office)

Company IconVirtueTech Recruitment Group
Location IconLondon

A global financial technology firm is seeking a Senior C# Software Engineer to architect a greenfield payments platform in Central London. This role requires expertise in C#, .Net Core, and SQL, focusing on creating robust and high-performance backen...Read More>>.

Posted: May 31st, 2026
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Senior Athena Python Engineer - Rates Risk & PnL

Company IconJPMorgan Chase & Co.
Location IconLondon

A leading global financial services firm is seeking an experienced Senior Athena Python Rates Senior Lead Software Engineer. In this role, you will design, develop, and integrate solutions that support trading desks and back office functions for rate...Read More>>.

Posted: May 31st, 2026
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Senior Java/React Engineer – Platform & Data Services

Company IconJPMorgan Chase & Co.
Location IconLondon

A global financial services firm is seeking a Software Engineer III to enhance its PricingDirect platform. The role involves designing robust software solutions primarily using Java and Spring Boot, collaborating with diverse teams, and working with...Read More>>.

Posted: May 31st, 2026
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Python Software Engineer – Quantitative Hedge Fund : £120-180k

Company IconHunter Bond
Location IconLondon

Are you a world-class Python engineer ready to push your technical limits in one of the most intellectually rigorous environments in finance? Our client is a leading quantitative investment fund—combining deep research, cutting‑edg...Read More>>.

Posted: May 31st, 2026
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Lead Software Engineer - Front end in Alderley Edge - Royal London Group

Company IconJava Script Works
Location IconAlderley Edge

This is a job posted by our partner JoobleBelow is a snippet of the job description. To read the full text, please click on the "Apply Now" link.Required QualificationsEnterprise web development experience with Angular...Read More>>.

Posted: May 31st, 2026
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Remote-First Senior Backend Engineer (MERN) – UK-based

Company IconConsortia Group
Location Icon

A technology recruitment agency is seeking a Senior Back End Engineer for a remote-first role, requiring candidates to reside in the UK. The position focuses on building scalable systems using the MERN tech stack and offers exceptional career progres...Read More>>.

Posted: May 31st, 2026
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Senior Full-Stack Engineer: React & Java, Drive Impact

Company IconJPMorgan Chase & Co.
Location IconGlasgow

A prominent financial services firm in Glasgow seeks a Software Engineer III to join their agile team. You will play a key role in delivering technology solutions across multiple business functions, focusing on high-quality code and innovative troubl...Read More>>.

Posted: May 31st, 2026
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Software Engineer (Python/Golang/DevOps) - Up to £60,000 - ID37652

Company IconHumand Talent
Location IconLondon

Software Engineer (Python/Golang/DevOps) - Up to £60,000 - ID37652 This range is provided by Humand Talent. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range...Read More>>.

Posted: May 31st, 2026
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Senior Java Engineer — High-Throughput Trading Systems

Company IconLondon Metal Exchange Limited
Location IconLondon

A leading metals exchange in London is seeking a Senior Engineer to enhance their Inter-Office Trading platform. The role involves developing resilient integrations, automating test tooling, and collaborating with stakeholders to improve efficiency....Read More>>.

Posted: May 31st, 2026
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Senior Java Algo Engineer, Fixed Income Trading (Hybrid)

Company IconCitibank (Switzerland) AG
Location IconLondon

Citibank (Switzerland) AG is hiring a Software Engineer for its Fixed Income Algo team in London. In this role, you will design and develop components for a high-performance algo trading platform, collaborating closely with traders and product manage...Read More>>.

Posted: May 31st, 2026
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Senior Backend Engineer — Hybrid, Scalable Backends

Company IconChina-Britain Business Council
Location IconCity of Westminster

Holland & Barrett is looking for a Senior Backend Engineer to enhance their digital experience. You will design scalable backend systems, build quality services for web and mobile, and mentor fellow engineers. This hybrid role requires strong experti...Read More>>.

Posted: June 1st, 2026
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Platform Delivery Lead — API-First Fintech (12m FTC)

Company IconMLM SEARCH
Location IconLondon

MLM SEARCH is seeking a Technology Delivery Manager for a 12-month fixed term contract. The ideal candidate will lead technology delivery across a modern fintech platform, ensuring integration architecture and alignment with design.Experien...Read More>>.

Posted: June 1st, 2026
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Senior Software Engineer (TypeScript, Node.js, AWS) - 12 month maternity cover

Company IconHouseful Limited
Location IconLondon

Hybrid - 2 days per week in our London HQAlto Software Group is a B2B SaaS company that powers more than half of all UK housing transactions each year. We create software solutions that connect businesses and consumers, delivering a one-...Read More>>.

Posted: June 1st, 2026
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Senior Full-Stack Engineer: Backend Design & APIs

Company IconZigzag Dog Training | B Corp
Location IconLondon

Zigzag Dog Training | B Corp is seeking a Senior Software Engineer to develop and maintain their dog training app, with a focus on backend systems and APIs. Working within a team, you'll have the opportunity to lead backend design, improve CI/CD pipe...Read More>>.

Posted: June 1st, 2026
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VP of Engineering (HealthTech) in Cambridge - Bluestorm Recruitment by Dazzle

Company IconJava Script Works
Location IconCambridge

VP of Engineering (HealthTech) Cambridge, UnitedKingdom Posted 12 months ago Tech Stack React iOS Swift Java JavaScript Android MongoDB Kotlin...Read More>>.

Posted: June 1st, 2026
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Senior Software Engineer — ASP.NET/React ERP Web Apps

Company IconJava Script Works
Location IconHungerford

Java Script Works is looking for a Senior Software Engineer to join their team in Hungerford, United Kingdom. The ideal candidate has hands-on experience in web and application development using ASP.NET, JavaScript, TypeScript, React, and Web API, wi...Read More>>.

Posted: June 1st, 2026
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Senior Software Engineer — Platform Core (TypeScript/React)

Company IconJava Script Works
Location IconLondon

Java Script Works is seeking a Senior Software Engineer located in London, United Kingdom. The role involves contributing to the rebuild and refinement of our core platform and writing clean, scalable code using TypeScript, React, and SQL.T...Read More>>.

Posted: June 1st, 2026
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Senior Full Stack Developer (Java+ Kotlin+ React) Moldova

Company IconAmdaris
Location IconBristol

We fuse together exceptional talent who deliver outstanding software solutions. Our approach has helped us grow 60% in 2021, 94% in 2022, while in 2023 we joined forces with Insight, a Fortune 500 company and a leading solutions and systems int...Read More>>.

Posted: June 1st, 2026
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Senior Software Engineer (Python/ Automation) in Cambridge - Imagination Technologies

Company IconImagination Technologies
Location IconCambridge

Senior Software Engineer (Python/ Automation) Cambridge, United Kingdom Posted 10 months ago Tech Stack Automation Python Software Engineer Responsibilities Ca...Read More>>.

Posted: June 1st, 2026
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Senior Python Engineer: GCP & FastAPI | Hybrid/London

Company IconClient Server
Location IconLondon

Client Server is seeking a Senior Software Engineer with expertise in Python and GCP in London. You will join a talented team to enhance the core banking platform and tackle new projects.The role offers the flexibility to work from home twi...Read More>>.

Posted: June 1st, 2026
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Strategic API & Integration Architect (Contract)

Company IconGreat British Energy Group
Location IconLondon

Great British Energy Group is seeking an Integration Architect for a 5-month contract, working in a hybrid model across London, Lytham, Durham, or Glasgow. The role is integral to a Core Banking Transformation programme, emphasizing API strategy a...Read More>>.

Posted: June 1st, 2026
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Lead Integration Architect - Real-Time Banking, API-First

Company IconFalcon Smart IT Limited
Location IconLondon

Falcon Smart IT Limited is seeking an experienced Integration Architect to join their team in London on a FTC basis for 1 year. The role requires deep integration expertise and a cloud-native mindset, focusing on real-time Ledger, Payments, and FX...Read More>>.

Posted: June 1st, 2026
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Head of API & Data Pre-Sales

Company Icon9fin
Location IconLondon

9fin is seeking a Head of Pre-Sales to lead the technical sales efforts for their innovative API and Data Feed Products. This role requires a seasoned professional with over a decade of technical sales experience in financial institutions, specifical...Read More>>.

Posted: June 1st, 2026
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Strategic Sales Manager - Network API

Company IconVonage
Location IconGildersome

Join Vonage and help us innovate cloud communications for businesses worldwide!Vonage Communications APIsAs an emerging leader in the $10B+ communications API market, we empower global brands to connect better with their custo...Read More>>.

Posted: June 1st, 2026
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Dynamics D365 Performance Engineer - Outside IR35 (IT) in London - LA International Computer Co[...]

Company IconJava Script Works
Location IconLondon

Dynamics D365 Performance Engineer - Outside IR35 (IT) London, United Kingdom Posted 9 months ago This is a job posted by our partner Jooble Tech stack C TypeScript JavaScript...Read More>>.

Posted: June 1st, 2026
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Senior Java Engineer - Scalable APIs, AWS & Kubernetes

Company IconGamma Recruitment Team
Location IconNewbury

Gamma Recruitment Team is seeking an experienced Software Engineer to design and develop robust software solutions. You'll be instrumental in API design and support systems within the BSS/OSS domain, working with cross-functional teams to ensure h...Read More>>.

Posted: June 1st, 2026
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Senior Full Stack Software Engineer - Communications Team in Windsor - Neilson Financial Services

Company IconJava Script Works
Location IconWindsor

Collaboration Bias for initiative is critical for success on this team. Responsibilities Build modern, responsive UI components using Vue.js (2/3)/ Vuex or React, Angular etc. Experience with common front-e...Read More>>.

Posted: June 1st, 2026
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Full-Stack .NET Lead - Cloud & Front-End Innovator

Company IconJava Script Works
Location Icon

Java Script Works is seeking a skilled Developer in the United Kingdom. The role includes leadership responsibilities and requires expertise in .NET (C#) for backend development. Ideal candidates will have solid experience with JavaScript, HTML, SASS...Read More>>.

Posted: June 1st, 2026
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Mobile Security Engineer in London - LinuxRecruit

Company IconJava Script Works
Location IconLondon

Mobile Security Engineer London, United Kingdom Posted 7 months ago Tech stack Security Terraform Mobile Below is a snippet of the job description. To read the full text, ple...Read More>>.

Posted: June 1st, 2026
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Senior Full-Stack Engineer: Python, React, Cloud

Company IconPLP Group
Location Icon

Next Gate Tech is seeking a Senior Software Engineer in the UK to design and scale systems that power applications and data infrastructure. Ideal candidates will have over 6 years of experience with strong proficiency in Python and full-stack deve...Read More>>.

Posted: June 1st, 2026
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Contract Data Scientist - Python, SQL & ML (Project-Based)

Company IconMindrift
Location IconManchester

Mindrift in Manchester seeks a data science expert to design and document complex computational problems across industries. The candidate should have over 5 years of hands-on experience, a strong portfolio, and proficiency in Python and SQL. Knowledg...Read More>>.

Posted: June 1st, 2026
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Senior Backend Engineer, Cloud Platform Tools — Go/K8s

Company IconTeleport
Location Icon

Teleport is seeking a professional for its Core Tooling team in the UK, responsible for developing and releasing Teleport artifacts such as container images, AMIs, and Helm Charts. Candidates must possess expert-level knowledge in Go, strong experien...Read More>>.

Posted: June 1st, 2026
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Backend Engineer for AI Startup — Ownership & Impact

Company IconLinuxRecruit
Location IconLondon

An innovative AI startup in Greater London is seeking a Software Engineer to join its high-caliber team. In this role, you will work on backend systems integrating with LLMs, having direct conversations with customers and shaping products that make a...Read More>>.

Posted: June 1st, 2026
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Senior Full Stack Engineer — C# | Python | AWS (Hybrid)

Company IconClient Server Ltd.
Location IconLondon

Client Server Ltd. in Greater London is looking for a Senior Full Stack Engineer (C# .Net, Python, AWS, SQL) to join their investment tech team. This role involves working on a diverse range of applications, collaborating with stakeholders to enha...Read More>>.

Posted: June 1st, 2026
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Senior Full Stack Engineer (TypeScript/Backend-Focused) | High-Growth Digital Prize Platform

Company IconTechfellow Limited
Location IconLondon

(Up to c. £110k Base Salary | Hybrid Working - 3 Days in Office)Role OverviewWe’re supporting a fast-scaling digital platform operating in the online prize and gaming space, as it strengthens its core engineering team...Read More>>.

Posted: June 1st, 2026
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Principal Full-Stack Engineer (Java,React,LLMs)

Company IconRE Partners
Location Icon

We’re hiring a Principal Full-Stack Engineer to join one of the largest banking institutions in the U.S. - a highly complex, high-impact environment where engineering decisions truly matter. This role is ideal for someone who combines...Read More>>.

Posted: June 1st, 2026
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Lead .NET Engineer: Azure, DevOps & Microservices (Remote)

Company IconJas Gujral
Location IconLondon

An international technology client is seeking a Lead Software Developer skilled in .Net Core and SQL Server. The ideal candidate must have over 5 years of solid software engineering experience and proficiency in CI/CD processes using Azure DevOps. Th...Read More>>.

Posted: June 1st, 2026
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