1,351 to 1,375 of 1,557 Developer Jobs in London

High-Performance Java Low-Latency Developer

Location
Greater London, England, United Kingdom
Barclays in London is seeking a Low Latency Developer to design, develop and optimize high-performance trading systems that underpin our markets platform. You will contribute to latency-sensitive algorithmic rollouts and ensure the platform remains fast, stable, and precise in a dynamic trading environment. The role emphasizes secure coding ...

Senior Salesforce Developer & Architecture Lead - UK

Location
Greater London, England, United Kingdom
Laotop recherche des profils Salesforce Senior Developer pour intervenir sur des projets au Royaume-Uni, dont Londres et Midlands. Le rôle implique du développement, de la gestion de projets et de l'architecture Salesforce. Plusieurs sites et séances hebdomadaires sont prévus; les entretiens sont planifiés prochainement. Aucun soutien visa mentionné. ...

Senior Salesforce Developer: CRM & Integrations Lead

Location
Greater London, England, United Kingdom
Elsevier is seeking a Salesforce Senior Developer to lead the design and delivery of scalable Salesforce solutions. You will work with cross-functional teams to implement robust, high-impact applications that align with business goals and regulatory standards. The role emphasizes standardization of business processes, ownership of the deployment lifecycle ...

GenAI Architect & .NET Developer — Insurance AI

Location
Greater London, England, United Kingdom
seeking an AI Architect & .NET developer in London to design and govern end-to-end GenAI architectures on Azure for insurance workflows, including underwriting and claims. You will lead the implementation, drive agentic AI and RAG strategies, ensure security, cost efficiency, and regulatory compliance across enterprise systems while mentoring .NET ...

Senior MuleSoft Developer (Contract)-Enterprise Integrations

Location
Greater London, England, United Kingdom
TechOhana is seeking a Senior MuleSoft Developer to join a growing digital transformation consultancy on a contract basis in London. You will architect, build and deploy APIs on the MuleSoft Anypoint Platform, integrating Salesforce, SAP, legacy databases and various services. You will implement DataWeave 2.0, RAML/OAS patterns ...

Hybrid Salesforce Developer: Build, Integrate & Innovate

Location
Uxbridge, England, United Kingdom
Capgemini is seeking a skilled Salesforce Developer to design, build, and maintain Salesforce solutions across hybrids of Capgemini offices, client sites, and home working. You will implement Apex, Lightning Components, and Flows, provide Level 3 support, and ensure secure, scalable integration with related systems. With 4+ years of hands ...

Quantitative Developer/Trading Systems Engineer, Systematic Macro

Hiring Organisation
Millennium Management
Location
London, UK
Employment Type
Full-time
Quantitative Developer/Trading Systems Engineer, Systematic MacroPlease send resume submissions to QuantTalentEUR@mlp.com and reference REQ- 30156 in the subject line. Location: LondonRole OverviewA collaborative and entrepreneurial systematic investment team is seeking an experienced Quantitative Trading Systems Engineer to join its Systematic Macro trading team. This role focuses ...

Experienced Front End Developer — Hybrid London

Location
City Of London, England, United Kingdom
Intec Select Ltd. is seeking a Front End Developer for a London-based six-month contract on a hybrid pattern. The role focuses on developing and enhancing modern web applications, collaborating closely with product teams, designers and backend engineers to deliver exceptional user experiences. Ideal candidates will have strong JavaScript ...

Algo Developer – Java for Global Trading Platform

Location
Greater London, England, United Kingdom
Nomura Holdings, Inc. seeks an Algo Developer for a 6 to 12 month contract in London. The role involves designing and developing algorithmic trading systems and requires expertise in Java and collaboration across teams. The ideal candidate will have a bachelor's or master's degree in computer science ...

BI Developer: Modern Data Modeling & Power BI Builder

Location
Greater London, England, United Kingdom
innocent is seeking a BI Developer to turn data from multiple systems into trusted analytical datasets and to build enterprise data products using SQL, Kimball modelling concepts, Microsoft Fabric and Power BI. You’ll design and optimise semantic models, support reporting and enable self-serve analytics across the business. Collaborate ...

Associate Web Developer — Scala + React

Location
City Of London, England, United Kingdom
FlexTrade Systems, Inc. is seeking an Associate Web Developer to join the FlexONE team in London. You'll contribute to development across web and mobile applications using a Scala + Play backend and a React + AG-Grid frontend, building features, fixing issues and improving usability. The role offers collaboration ...

Full Stack Developer: Build Impactful, Scalable Web Apps

Location
Greater London, England, United Kingdom
TEAM LEWIS is seeking a capable Developer to join our expanding development team in Greater London. You will contribute to both back-end and front-end work, crafting visually engaging websites, mobile apps, and campaigns while aligning with the company’s vision. You will collaborate under the Head of Development ...

Client-Facing BI Developer: SQL, Power BI & AI

Location
Greater London, England, United Kingdom
Holland Mountain is seeking an experienced BI Developer to join the ATLAS team in London. This hands-on, client-facing role will design, build and improve BI and data solutions for multiple client projects within a fast-paced consulting environment. You will translate evolving requirements into practical, high-quality solutions ...

Infrastructure Developer: API-Driven Infra & CMDB

Location
City Of London, England, United Kingdom
Ncounter Limited is seeking an experienced Infrastructure Developer who blends software engineering with large-scale infrastructure. You will implement production-grade Python services, API layers, and automation to reduce manual toil. Work spans CMDB-driven provisioning, integration across compute, networking, storage and cloud, plus event-driven workflows with a cloud ...

Quantitative Developer — Trading Desk Infrastructure (Python)

Location
Greater London, England, United Kingdom
Mondrian Alpha in London seeks an experienced Quantitative Developer to sit on a desk with a Portfolio Manager, building and enhancing trading and research infrastructure to support the investment strategy. You will work closely with quantitative researchers to develop and implement algorithms and help with strategy optimisation. The role requires ...

Quant Developer — FICC Convergence & Unified Analytics

Location
Greater London, England, United Kingdom
HSBC is seeking a front-office quantitative developer to build and deploy a unified quant library interface for FICC. The role focuses on data unification, scalable analytics and collaboration with multiple quants teams to deliver convergence outcomes in front office workflows. You will work across Windows and Linux, using modern ...

Lead Java Developer (London)

Hiring Organisation
Hackajob Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
hackajob is partnering directly with AND Digital to hire for this role. Lead Java Developer - 12 Month FTC Who We Are: AND Digital are a tech company focused on accelerating digital delivery and dedicated to closing the digital skills gap. Weve been helping organisations build better digital products and stronger ...

BI Developer | Power BI, SQL & Dimensional Modeling

Location
Greater London, England, United Kingdom
innocent Alps GmbH is seeking a BI Developer to turn data from multiple systems into trusted analytical datasets and build scalable data solutions. You’ll design dimensional models, develop T-SQL transformations, and create Power BI semantic models for enterprise reporting and self-serve analytics. You’ll work with ...

Senior KDB+ Developer: High-Performance Risk Data

Location
Greater London, England, United Kingdom
Luxoft is seeking an experienced Senior KDB+ Developer to design, develop and optimize high performance data platforms built on kdb+. The ideal candidate will have deep expertise in kdb+ tick architecture, performance tuning at scale and close collaboration with business stakeholders – particularly within Risk functions – to deliver robust, efficient ...

SC Cleared Salesforce Developer - London (Mid-Level)

Location
Greater London, England, United Kingdom
Cognizant is seeking a Mid-level Salesforce Developer to join our London team. The role involves independent contributions across solution design, build, testing, and post-implementation support, working closely with senior developers and testers. Local UK residency is required for at least 5 consecutive years. The successful candidate will deliver ...

Blockchain Developer (remote)

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
Blockchain DeveloperREMOTE WORKING130,000Quant Capital is urgently looking for a Blockchain Developer to join our high profile clients TeamOur client is a well known global Global Prop Trading firm. They value technology especially the opensource variety as well as scalability and robust performance (much like their track record).They also … have a digital asset service operating in over 100 countriesDay to day the Blockchain Developer will: Responsible for research, design, development and application of smart contract related technologiesAnalyze current DeFi ecological projects and protocols, including but not limited to decentralized payment, trading, lending, derivatives trading, etc. Develop and connect related ...

Python Developer - Data Products & Self-Service Apps

Location
Greater London, England, United Kingdom
Saga Group is seeking a Python Developer to turn data into scalable applications that empower teams to make data-driven decisions. You will use Python, Streamlit and SQL to build self-service data products that simplify complex information for people across Saga. The role requires being in the London Kings ...

Full Stack Developer – Structured Products Trading & Ops (Hybrid, London)

Location
Greater London, England, United Kingdom
Nomura is seeking a Full Stack Developer for Global Markets IT in London, hybrid work model. The role focuses on developing and maintaining the Totoro trading and risk system, collaborating with quants and front office to implement practical solutions and deliver robust software with a strong delivery focus. The successful ...

Python Core Developer for Crypto HFT Platform (London)

Location
Greater London, England, United Kingdom
Oxford Knight is seeking a Python Core Developer for a Middle Office role in London, working with an international algorithmic market maker in digital assets. The role requires strong Python expertise and prior experience in trading systems. UK-based applicants with right-to-work are preferred; visa sponsorship ...

C# & React Developer for Front Office Trading Tools

Location
Greater London, England, United Kingdom
Talan is looking for a skilled C# Developer with REACT experience to join their delivery teams focusing on Front Office platforms. You will design and enhance regulatory and sales enablement solutions in fast-paced trading environments. This role requires strong collaboration with stakeholders and contributions across the software development lifecycle ...