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14 systems integration developer jobs found

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systems integration developer £500 - £600
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Outside Spy
Jun 22, 2026
Duration not stated
Workday Data Migration Developer- CONTRACT at Real, York, £500 to £600 per Day
£500 - £600 per day
Outside Spy York, UK
We are looking for a hands-on Data Migration Developer with expert-level SQL skills to support data extraction and migration to Workday Financials. The role will focus on writing complex SQL queries to interrogate, validate, and transform data as part of data migration and integration initiatives. Experience working with financial systems is strongly preferred, with exposure to Workday financials. While experience across multiple systems is ideal, expert SQL capability is essential, as the role cannot be performed without it. Contract duration: 3- 6 months location: remote Duration: 3-6 months IR35: Outside IR35 Please click here to find out more about our Key Information Documents. Please note that the documents provided contain generic information. If we are successful in finding you an assignment, you will receive a Key Information Document which will be specific to the vendor set-up you have chosen and your placement. To find out more about Real, please visit (url removed)...
Outside Spy
Jun 22, 2026
up to 6 Months
Workday Data Migration Developer- CONTRACT at Real Staffing Group, York, 3 to 6 Months, £500-£600 per day
£500 - £600 per day
Outside Spy York, North Yorkshire, UK
We are looking for a hands-on Data Migration Developer with expert-level SQL skills to support data extraction and migration to Workday Financials. The role will focus on writing complex SQL queries to interrogate, validate, and transform data as part of data migration and integration initiatives. Experience working with financial systems is strongly preferred, with exposure to Workday financials. While experience across multiple systems is ideal, expert SQL capability is essential, as the role cannot be performed without it. Contract duration: 3- 6 months location: remote Duration: 3-6 months IR35: Outside IR35 Please visit our website to find out more about our Key Information Documents. Please note that the documents provided contain generic information. If we are successful in finding you an assignment, you will receive a Key Information Document which will be specific to the vendor set-up you have chosen and your placement. To find out more about Real, please visit our...
Outside Spy
Jun 19, 2026
6 Months or more
Boomi Developer at Boss Professional Services, UK Wide, 6 Months, £575-£675 per day
£575 - £675 per day
Outside Spy United Kingdom
Boomi Integration Developer (ERP Programme) Location: Fully Remote UK, with occasional travel to an office Contract Type: Contract Duration: 6 months Initial IR35 Status: Outside IR35 About the Role We are seeking a highly skilled Boomi Developer with proven experience integrating the ERP environment (Infor LN preferred) to join a digital transformation programme. You will be the core technical lead responsible for designing, building, and deploying robust, scalable integration pipelines between the ERP (Infor LN) and surrounding enterprise ecosystem (including CRM, MES, WMS, and third-party logistics/3PL partners). The ideal candidate will not just be a "component builder" in Boomi, but an integration specialist who understands complex manufacturing/distribution data flows and can navigate the nuances of Infor LN data structures. Key Responsibilities Design & Build: design, develop, and test end-to-end integration processes using the Boomi...
Outside Spy
Jun 19, 2026
6 Months or more
Integration Developer (Backend + DevOps) at Sanderson Recruitment Plc, London, 6 Months, £550-£600 per day
£550 - £600 per day
Outside Spy London, UK
Integration Developer (Backend + DevOps Focus) Location: Fully Remote Pay: £550-£600 per day (Outside IR35) Duration: Initial 6-month contract (with strong extension potential) The Role We're supporting a leading UK financial services organisation on a new platform build and they're looking for an Integration Developer with a strong DevOps background. This is a developer-first role with a significant DevOps leaning, ideal for someone who enjoys building Back End services ( TypeScript/Node.js on AWS) while owning how code is deployed, automated and operated at scale. You'll play a key role in designing and building deployment pipelines (Harness) while contributing to Back End engineering and platform integration work . Key Responsibilities Deliver infrastructure using Infrastructure as Code (Terraform) Develop high-quality Back End code in line with engineering standards Build and optimise CI/CD pipelines (Harness focus) Implement robust DevOps...
Outside Spy
Jun 19, 2026
Duration not stated
Boomi Developer at BOSS Professional Services LTD, London, £575-£675 per day
£575 - £675 per day
Outside Spy London, UK
Boomi Integration Developer (ERP Programme) Location: Fully Remote UK, with occasional travel to an office Contract Type: Contract Duration: 6 Months Initial IR35 Status: Outside IR35 About the Role We are seeking a highly skilled Boomi Developer with proven experience integrating the ERP environment (Infor LN preferred) to join a digital transformation programme. You will be the core technical lead responsible for designing, building, and deploying robust, scalable integration pipelines between the ERP (Infor LN) and surrounding enterprise ecosystem (including CRM, MES, WMS, and third-party logistics/ 3PL partners). The ideal candidate will not just be a component builder in Boomi, but an integration specialist who understands complex manufacturing/ distribution data flows and can navigate the nuances of Infor LN data structures. Key Responsibilities Design & Build: design, develop,...
Outside Spy
Jun 19, 2026
Duration not stated
Integration Developer (Backend + DevOps) at Sanderson , London, £550-£600 per day
£550 - £600 per day
Outside Spy London, UK
Integration Developer (Backend + DevOps Focus) Location: Fully Remote Pay: £550- £600 per day (Outside IR35) Duration: Initial 6-month contract (with strong extension potential) The Role We 're supporting a leading UK financial services organisation on a new platform build and they 're looking for an Integration Developer with a strong DevOps background. This is a developer-first role with a significant DevOps leaning, ideal for someone who enjoys building backend services ( TypeScript / Node.js on AWS) while owning how code is deployed, automated and operated at scale. You 'll play a key role in designing and building deployment pipelines (Harness) while contributing to backend engineering and platform integration work . Key Responsibilities Deliver infrastructure using Infrastructure as Code (Terraform) Develop high-quality backend code in line with engineering standards Build...
Outside Spy
Jun 18, 2026
Duration not stated
Software Engineer at Sanderson, City Of Bristol, £550–£600 per day
£550–600 per day
Outside Spy City Of Bristol, England, United Kingdom
Integration Developer (Backend + DevOps Focus) Location: Bristol – once a month Pay: £550–£600 per day (Outside IR35) Duration: Initial 6-month contract (with strong extension potential) The Rol eWe’re supporting a leading UK financial services organisation on a new platform build and they’re looking for an Integration Developer with a strong DevOps background .This is a developer-first role with a significant DevOps leaning, ideal for someone who enjoys building backend services and owning how code is deployed, automated and operated at scale .You’ll play a key role in designing and building deployment pipelines (Harness) while contributing to backend engineering and platform integration work . Key Responsibiliti esDevelop high-quality backend code in line with engineering standar dsBuild and optimise CI/CD pipelines (Harness focus) for fast, secure delive ryImplement robust DevOps practices across the SD LCCollaborate on delivering new platform...
Outside Spy
Jun 18, 2026
6 Months or more
Integration Developer (Backend + DevOps) at Sanderson Recruitment Plc, Bristol, 6 Months, £550-£600 per day
£550 - £600 per day
Outside Spy Bristol, UK
Integration Developer (Backend + DevOps Focus) Location: Bristol - once a month Pay: £550-£600 per day (Outside IR35) Duration: Initial 6-month contract (with strong extension potential) The Role We're supporting a leading UK financial services organisation on a new platform build and they're looking for an Integration Developer with a strong DevOps background. This is a developer-first role with a significant DevOps leaning, ideal for someone who enjoys building Back End services and owning how code is deployed, automated and operated at scale. You'll play a key role in designing and building deployment pipelines (Harness) while contributing to Back End engineering and platform integration work. Key Responsibilities Develop high-quality Back End code in line with engineering standards Build and optimise CI/CD pipelines (Harness focus) for fast, secure delivery Implement robust DevOps practices across the SDLC Collaborate on delivering new platform features...
Outside Spy
Jun 24, 2026
Duration not stated
Quality Assurance Lead at Morson Edge, Manchester Area, £500 per day
£500 per day
Outside Spy Manchester Area, United Kingdom
QA Lead | Hybrid/Remote | Up to £500 p/d | Outside IR35 I'm working with an organisation looking for a QA Lead to take ownership of quality across a growing engineering function. This is a hands-on leadership role where you'll be responsible for defining testing standards, improving quality processes, and leading by example. You'll remain actively involved in testing activities while helping shape the overall QA strategy and mentoring other testers and engineers. The successful candidate will be passionate about delivering high-quality software, comfortable working closely with development teams, and confident driving quality throughout the entire software development lifecycle. Key Responsibilities Lead quality assurance activities across multiple products and projects Define and implement QA processes, standards, and best practices Develop and execute manual and automated test strategies Work closely with Product Managers, Developers, and Delivery teams...
Outside Spy
Jun 24, 2026
Duration not stated
Azure Developer, C# at ARC IT Recruitment, United Kingdom, £450-£500 per day
£450 - £500 per day
Outside Spy United Kingdom
Azure Developer, C# Initial 6-Month Contract - Outside IR35 £450 – 500 day rate A well-known and hugely prestigious global business is hiring a C#, Azure Developer for an 6-month contract engagement with the potential to extend. This role will see you working fully remotely as part of a large-scale Cloud Transformation programme. The engagement sits outside IR35. You will work within an Architecture Team on the re-platforming and modernisation of legacy API and integration platforms, migrating on-premise infrastructure to Azure cloud. This is a hands-on development role with a strong emphasis on automated testing as well as cloud-native build. What you'll be doing Developing performant, public-facing REST APIs and system integrations in Azure Documenting APIs to OpenAPI 3.x standards Reviewing legacy implementations and building modern replacements in collaboration with the architecture team Writing and maintaining automated test cases using Reqnroll,...
Outside Spy
Jun 23, 2026
Duration not stated
.NET Developer at Arrows, United Kingdom, £500-£600 per day
£500 - £600 per day
Outside Spy United Kingdom
Senior .NET Developer | Gambling / Real-Time Systems | Remote | 6 months | £500-£600/day I'm working with a rapidly scaling and fast moving gambling / betting company who need multiple .NET contractors with real pedigree to help power their expansion into new markets. You'll be working on high-throughput backend systems - SignalR, real-time odds feeds, KYC and casino aggregator integrations - building out infrastructure that can be spun up in new jurisdictions with minimal effort. There's also an internal admin tool that needs deploying to new entity and, depending on your full-stack chops, potentially rebuilding from scratch. Currently on .NET 9, heading to .NET 11. They want someone who knows how to leverage AI tooling properly and can hit the ground running in a lean, fast-moving team. Hosted in their Azure cloud. Typescript stuff on Frontend. Their mobile apps are all fully React Native. Gambling or fintech background is a strong plus. Proactive,...
Outside Spy
Jun 23, 2026
Duration not stated
Oracle Fusion Developer (Payroll and HCM) at Talent International, Filton, £600.0-£610.0 per day
£600 - £610 per day
Outside Spy Filton, UK
Job Description: Oracle Fusion Developer (Payroll and HCM) Location: (Hybrid - 3 days per week onsite) Contract Length: Until 31st March 2027 IR35 Status: Out of Scope (Outside IR35) The Opportunity: We are looking for two experienced Oracle Technical Specialists to join a major central government organization on a critical, long-term contract. Working within a modern DevOps environment, you will play a key role in supporting and developing high-priority changes within the core Payroll spacespecifically driving forward major pay award implementations and system integrations. Key Responsibilities: Develop, configure, and maintain Oracle Cloud/Fusion Payroll applications. Write and optimize complex Fast Formulas and manage system elements. Utilize HCM Data Loader (HDL), Spreadsheet Loader (HSDL), and OIC for seamless system integrations. Build data models and extract insights using OTBI/BI reporting and SQL/PLSQL. Investigate,...
Outside Spy
Jun 18, 2026
Duration not stated
​​​​​​​Software Test Engineer / Lead – Outside IR35 at SDL Solutions Limited , UK, £350 to £500 per Day
£350 - £500 per day
Outside Spy United Kingdom
Software Test Engineer / Lead – Outside IR35   My client is the fastest growing technology company who is seeking a Software Test Engineer / Lead for an initial 12-month contract. As a Software Test Engineer / Lead you should have experience with both Manual and Automated Testing, Regression Testing or Performance Testing. As a team player you will be liaising with other multi-functional testers and software designer / developers to understand the business requirements and product functionality, You will be involved in software test spec, manual test cases, automated test scripts and performance testing solutions that will need to be implemented throughout the delivery pipeline. Involvement in production and maintenance of system testing and systems integration of hardware and software components through to resolution of all faults found in the software. You will ideally be degree educated in an engineering or science subject, with a good IT content and ISTQB® certification is...
Outside Spy
Jun 17, 2026
Duration not stated
IBM i / LANSA Developer at Morson Edge, United Kingdom, £600 per day
£600 per day
Outside Spy United Kingdom
IBM i / LANSA Developer – Contract – Outside IR35 📍 Fully Remote (UK) 💷 Up to £600 per day 📅 Initial 6 months with likely extensions I'm currently recruiting for an experienced IBM i / LANSA Developer to join a major modernisation programme, working on business-critical applications within an established IBM i environment. You'll need strong experience across: IBM i / AS400 development LANSA (RDML/RDMLX, Visual LANSA, repository concepts) DB2 for i RPG and/or CL exposure Legacy green-screen applications and IBM i operational concepts Modernisation projects (web, APIs, mobile/PWA) REST APIs and third-party integrations Git, release management and environment promotion This is a niche role requiring someone who understands how to evolve long-standing enterprise systems without compromising stability and maintainability. Rate: Up to £600 per day IR35: Outside IR35 Location: Fully Remote Start: ASAP If you're an experienced IBM...
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