1 to 25 of 31 Contract Developer Jobs in the City of London

Join a dynamic energy provider dedicated to sustainable solutions in the UK. We seek enthusiastic and resourceful Backend Python Engineers at mid to senior levels who are passionate about crafting exceptional products. Initially it will be a three-month contract More ❯

Salesforce Developer 12 months Remote Inside IR35 - Umbrella only Job Description: As a Salesforce Developer, you will lead the development of custom solutions on the Salesforce platform. You will be responsible for writing Apex code, creating visual force pages, and implementing integrations. You will have a strong understanding of the Salesforce platform and experience leading successful projects. A Senior Salesforce … Developer will have a deep understanding of the Salesforce platform and the ability to develop complex solutions, mentor and lead the development team, troubleshoot and provide technical support to clients. They will also have a solid understanding of web development concepts and languages and keep up-to-date with new Salesforce features and best practices. Required Skills: Salesforce Developer with … compliant portals, integrating via REST/SOAP APIs, and using declarative tools like Flows and Process Builder. Strong problem-solving and communication skills. Holds key Salesforce certifications including JavaScript Developer I, Platform Developer I & II, and App Builder. All profiles will be reviewed against the required skills and experience. Due to the high number of applications we will only be More ❯

Senior Developer 6 months Remote Inside IR35 - Umbrella only Active SC security cleared or eligible candidates will be considered Experience: Experienced in TDD and working with complex data challenges. Python as the preferred back-end language for new services, however we also need to support languages including Java and .NET. Oracle SQL PL to support existing services. Infrastructure/DevOps More ❯

Full Stack Developer 6 months Remote Inside IR35 - Umbrella only Active SC security cleared or eligible candidates will be considered Experience: Experienced in TDD and working with complex data challenges. Python as the preferred back-end language for new services, however we also need to support languages including Java and .NET. Oracle SQL PL to support existing services. Infrastructure/ More ❯

Quant Developer - Pricing & Risk Technology Location: London* Function: Trading Technology/Pricing & Risk Development* Reports To: Pricing and Risk Development Lead - London* Type: Full-Time, contract, onsite This global trading and investment group operates across energy, commodities, and financial markets, combining advanced quantitative methods with large-scale technology infrastructure. Its London engineering hub plays a central role in developing analytics … that power Front Office trading, pricing, and risk systems across oil, power, gas, and equity products. Overview The Quant Developer will design, enhance, and maintain Python-based pricing and valuation libraries used across global trading desks. These libraries underpin Real Time and end-of-day risk workflows and ensure consistency between valuation, risk, and Front Office systems. The role requires … a technically skilled developer with a solid grasp of financial mathematics and derivatives pricing, capable of implementing and optimising complex models in a production setting. Key Responsibilities Develop and maintain Python pricing and risk libraries covering vanilla and structured options across commodities and equities. Implement and calibrate models such as Black-Scholes, Heston, SABR, and Monte Carlo-based approaches for More ❯

Job Title: Azure Cosmos DB Admin and Developer Location: Hybrid, London UK (3days/Week Onsite) Duration: 6months+ Contract Inside IR35 The Role The DB Admin and Developer will play a critical role in designing and developing scalable, secure, and high-performance applications tailored for banking and financial services. This role involves architecting cloud-native solutions using Azure Cosmos DB … SQL API and Mongo API), implementing effective partitioning strategies, indexing, and consistency models to support real-time financial data processing. The developer will build reusable libraries and frameworks using C#/.NET or Node.js and establish robust CI/CD pipelines through Azure DevOps to streamline delivery and reduce operational overhead. A key responsibility includes monitoring and optimizing Cosmos DB More ❯

Lead on timetabling systems and functionality within a digital technologies team. Initially, you'll support the implementation of a new timetabling system as part of a project team. After implementation, you'll act as the technical lead for timetabling, providing More ❯

Java Developer - Contract 3 - 6 Month experience Remote working, Outside IR35 SC: Must be Eligible for SC (Criteria: 5 years as a resident in the UK and no longer than 30 consecutive days abroad outside the UK in the last 5 years) Run-Time are looking for +10 Senior Java Developers (contract) to join a Public Sector Client on a More ❯

OpenLink Endur Developer for leading financial services client in London. Contract and hybrid working. Key Responsibilities Develop, maintain, and enhance custom modules and extensions within Endur and .NET. Build and support interfaces and integrations between Endur and internal systems. Provide technical and functional support to traders, risk managers, and operations teams. Work with business analysts to deliver high-quality technical More ❯

Sharepoint Developer – 3-6 month Contract - Remote My Customer is looking for a talented Sharepoint Developer to join their growing team. You'll play a key role in building, and maintaining PowerApps, ensuring seamless integration with SharePoint and other Microsoft 365 tools. You'll also help define and implement versioning and governance policies to keep the Power Platform solutions organised … secure, and scalable. Key Sills from the Sharepoint Developer: Strong experience developing and deploying PowerApps (Canvas and/or Model-Driven). Proven background working with SharePoint Online (data structure, permissions, and integration). Experience connecting PowerApps to live data sources (Dataverse, SQL, SharePoint, or REST APIs). Understanding of version control and governance best practices for Power Platform. Familiarity … and OneDrive integration (desirable). Excellent problem-solving skills and attention to detail. Strong communication skills — able to translate business needs into technical solutions. Key Responsibilities of the Sharepoint Developer: Develop, enhance, and maintain PowerApps solutions (Canvas and/or Model-Driven). Create and manage Power Automate workflows and connectors. Work closely with stakeholders to gather requirements and deliver More ❯

Developers (Dynamics 365 CE) - £500-£600 a day - Outside IR35 - London/Hybrid - 4 month intial contract. We need a highly skilled Dynamics 365 Developer to work with a Central Government client with extensive expertise in CRM Customer Engagement and Power Platform technologies. The role demands strong knowledge in Microsoft Dynamics 365 CRM customistion, integration, and development using various click More ❯

Infrastructure as Code (IaC) Developer OpenShift Virtualization Key Responsibilities: 1. Design and implement Infrastructure as Code (IaC) solutions for OpenShift Virtualization using tools like Terraform and Ansible. 2. Automate the provisioning, configuration, and management of OpenShift clusters and virtualized workloads. 3. Develop and maintain reusable IaC modules and playbooks for consistent and scalable deployments. 4. Collaborate with DevOps, Cloud, and More ❯

Senior Golang Developer - Web/Vulnerability Scraping 3-Month Rolling Contract (up to 2 years) 600- 650 per day - Inside IR35 Hybrid - London 3 days per week & 2 days working from home Our global media and consumer technology client is seeking a Senior Back End Engineer to join their Information Security team for an initial 3-month contract. This role More ❯

Senior Golang Developer - Web/Vulnerability Scraping 3-Month Rolling Contract (up to 2 years) £600-£650 per day - Inside IR35 Hybrid - London 3 days per week & 2 days working from home Our global media and consumer technology client is seeking a Senior Back End Engineer to join their Information Security team for an initial 3-month contract. This role More ❯

Role: AI Developer Location: London Duration: 5 Months Day rate: £540 - £585 Umbrella Only Minimum of 5 years UK residency required Role Description: We're looking for an experience AI developer with the skills below. They'll be building out our client's AI needs and wants using a Microsoft Azure and Copilot stack. Essential skills and experience Design and More ❯

London (Remote) Client: ETRM Consultancy Contract Type: Up to £600 per day Outside IR35 Start Date: ASAP Role Overview: Our client, a leading ETRM consultancy, is seeking a Murex Developer with strong technical and functional expertise to support and enhance Murex implementations across financial institutions. The ideal candidate will have hands-on experience with Murex Datamart, Exchange and Contract workflows More ❯

Senior Developer 6 months Remote Inside IR35 - Umbrella only Active SC security cleared or eligible candidates will be considered Experience: Experienced in TDD and working with complex data challenges click apply for full job details More ❯

Sharepoint Developer - 3-6 month Contract - Remote My Customer is looking for a talented Sharepoint Developer to join their growing team. You'll play a key role in building, and maintaining PowerApps, ensuring seamless integration with SharePoint and other Microsoft 365 tools. You'll also help define and implement versioning and governance policies to keep the Power Platform solutions organised More ❯

Salesforce Developer 12 months Remote Inside IR35 - Umbrella only Active SC clearance required Job Description: As a Salesforce Developer, you will lead the development of custom solutions on the Salesforce platform click apply for full job details More ❯

skilled interim and temporary professionals, fostering workplaces where everyone can contribute and succeed. On behalf of our client, Royal London. We are looking for a Dynamics 365 & Power Platform Developer for a 6 Months Contract based in London (Hybrid 2-3 days per week in the office) Job description - the role Purpose of the role: As Dynamics 365 & Power Platform … Developer you will focus on building, implementing, testing, and maintaining CRM solutions. You'll play a key part in expanding our client use of the Power Platform, including Power Apps, Power Automate, and Power BI. This role blends technical development with elements of business analysis. What you'll do: Design, develop, and maintain CRM solutions using Dynamics 365 (Customer and More ❯

ServiceNow Developer 6 months initially Rremote Inside IR35 - Umbrella only The ideal candidate will be responsible for designing, developing, and implementing solutions that support enterprise portfolio management, demand management, project management, and resource planning within the ServiceNow platform. Key Responsibilities: Design and develop ServiceNow applications and modules, with a focus on SPM. Implement workflows, business rules, UI policies, and client More ❯

Have you good RPG Developer and AS400 skills? Want to work remotely the majority of the time? Have you worked on a contract basis with RPG Development projects beofre? This could be for you! We are partnering with a leading global technology organisation to identify an experienced RPG Developer with strong AS400/IBM i expertise for a high-impact … contract position. This is an excellent opportunity for seasoned specialists who take pride in clean, reliable code and enjoy working within complex enterprise environments. RPG Developer - About the Role Our client is undergoing a significant programme of work modernising and enhancing their core systems. As an RPG Developer, you will play a key part in maintaining and evolving business-critical … IBM i platform. You will work within a collaborative technical team, engaging with architects, analysts, and project stakeholders to deliver robust solutions that support long-term business objectives. RPG Developer - Key Responsibilities Develop, maintain, and optimise applications using RPG (free & legacy) on AS400/IBM i. Collaborate with internal teams to understand system requirements and translate them into reliable technical More ❯

eFX Low Latency Java Developer - Contract Location: London - Hybrid 3 days per week in the office Duration: 12 months Rate: £480-£550 per day Inside IR35 Hiring for a Senior Java Developer with strong FX and low-latency experience to join an eFX Algo IT team. You will build and optimise microsecond-level pricing, market connectivity and trading systems in More ❯

Java Developer - Contract 3 - 6 Month experience Remote working, Outside IR35 SC: Must be Eligible for SC (Criteria: 5 years as a resident in the UK and no longer than 30 consecutive days abroad outside the UK in the last 5 years) Run-Time are looking for Senior Java Developers (contract) to join a Public Sector Client on a long More ❯

ABAP Developer Largely remote with occassional on-site days in London 12 Month Fixed Term Contract Salary to £65,000 Vibrant and thriving business, is looking for an experienced ABAP Developer to join the team during a busy time of transformation. The role will take responsibility for: Working within a busy team of Functional Consultants, this is an in-house … 3rd party, to sense check efficiency and quality of work being delivered. You will be involved in planning, coding, implementation, testing and solution support. About you: An experienced ABAP developer, able to work closely with functional consultants to understand current approach and proposed solutions. Knowledgeable in Technical ABAP, with S/4HANA programming. Experience and working knowledge of CDS Views More ❯