1 to 25 of 44 Middleware Jobs in London

Booking and Messaging Java Developer (COMBJP00001223)

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600/day Negotiable
Java Expertise: Strong background in Java 8 or higher, with an elite understanding of multithreading, concurrency models, and non-blocking asynchronous processing. Messaging & Streaming Middleware: Heavy production experience with modern event-driven architectures and distributed streaming tools (e.g., Apache Kafka, RabbitMQ, ActiveMQ, or standard JMS APIs). Reactive Systems: Practical ...

SAP Technical Architect

Hiring Organisation
Hirexa Solutions UK
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£350 - £400 per day
landscape design, system copying, client deletion, and data archiving strategies. Strong knowledge of SAP interface technologies including ALE, IDoc, RFC, and third-party middleware integration. Excellent English communication and stakeholder management skills, with the ability to explain complex technical concepts to non-technical business leaders. Strong analytical and problem-solving ...

T24/Transact Migration Engineer (TAFC - TAFJ)

Hiring Organisation
VIQU IT Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - 500 per day + Inside IR35
technical understanding of: o COB processing o Local developments (L3 code) o Existing T24 data structures and file architecture • Experience troubleshooting across infrastructure and middleware layers such as: o JBoss/application servers o IBM MQ/integration layers o TAFJ runtime & Java components • Ability to analyse and support ...

SAP Enterprise Architect

Hiring Organisation
Conexus
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Distribution Asset Management Finance Lead architectural governance across complex transformation initiatives Integration & Data Architecture Define integration strategies leveraging SAP BTP and Integration Suite Oversee Middleware architecture and enterprise integration design Lead data migration and master data strategies Define data architecture across: SAP MDG BW/4HANA SAP DataSphere SAP Analytics ...

AI Deployment Engineer

Hiring Organisation
Emponics
Location
City of London, London, United Kingdom
Employment Type
Permanent
data serving Integrate AI solutions into the existing business ecosystem: CRMs, ERPs, SaaS tools, and internal systems Build and maintain APIs, webhooks, and middleware that allow AI agents to interact with business systems Take Strategist-built prototypes to production-grade hardening, scaling, and ensuring reliability Set up monitoring, logging ...

Head of Engineering, SAP/Oracle Platform & Transformation (HR and Finance)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
transformation programme from a technical perspective Lead and shape integration patterns between SAP, Oracle and surrounding systems, including middleware and service based architectures Contribute to SAP decoupling strategies where appropriate, enabling more flexible and modular platforms Work closely with Product and functional teams who define business processes, providing technical input ...

Software Architect

Hiring Organisation
X4 Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Competitive salary
environments. Understanding of regulated technology environments and governance frameworks. Exposure to SOX compliance. TOGAF, Archimate, Azure Solution Architect, or similar certifications. Experience delivering integration, middleware, or data platform programmes. What's on Offer Outside IR35 engagement. Immediate start. Hybrid working with onsite presence in either London or Dublin. Opportunity ...

Founding Enterprise Architect

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
integration patterns across SAP(Ariba, S/4HANA, ECC), Oracle, Workday, Coupa, Ivalua, Jaggaer, and others. Hands‐on fluency with integration architecture and middleware: iPaaS (MuleSoft, Boomi, Workato), REST APIs, event‐driven patterns, ETL. Proven success selling into or implementing at Fortune 500/FTSE 100 customers across multiple EMEA ...

Major Incident /Production Support Manager (iBank/Temp)

Hiring Organisation
Robert Walters
Location
London, South East, England, United Kingdom
Employment Type
Temporary
Salary
£400 - £600 per day
drive cross-technology recovery, and influence decisions that directly impact operational stability. What you'll do: Lead and coordinate major incidents across infrastructure, applications, middleware, cloud, EUC, network, identity, data, and third parties Establish and manage incident command structure, including team roles, bridge calls, and communications, ensuring clear ownership ...

SnapLogic Developer

Hiring Organisation
Mentmore Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Daily
integration patterns, and deliver robust end-to-end pipelines. We're looking for someone with strong commercial SnapLogic experience, a background in integration/Middleware migration, and solid technical skills across APIs, JSON, XML, SQL. Any exposure to AWS services (particularly S3/EventBridge/Transfer Family) would beneficial ...

Application Designer

Hiring Organisation
Halian Technology Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £450 to £500 per day
design, code and testing artefacts Ensuring quality, completeness and accuracy across deliverables Technical Environment Core Technologies Platforms: Linux (Red Hat Enterprise Linux) Integration & Middleware: IBM App Connect Enterprise (ACE) v12/v13 IBM WebSphere MQ v9 Databases: Oracle 19 (SQL, PL/SQL, data modelling) Messaging & Data Formats ...

Executive Director, Market Data Services Lead

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
conflicting/changing timelines with only a finite number of resources available.## ## KNOWLEDGE AND SKILLS* Strong C# and .NET* Strong ASP.Net WebAPIs, middleware, OpenAPI/Swashbuckle, ODATA* Core Market data technologies such as Bloomberg B-Pipe, BPIPE API, Server API, Bloomberg Data License, EMRS,Refinitiv, Elektron* Platform & Cloud experience ...

Linux Engineer

Hiring Organisation
VIQU IT
Location
London, Tower, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £550/day
Level 2 hardening enforced across all systems. The programme spans a broad and complex application estate — including core banking platforms, identity infrastructure, integration middleware, containerised workloads, and legacy line-of-business applications. This role requires someone who can build and maintain the hardening automation pipeline and also operate effectively ...

Head of R&D Product Delivery and Deployment

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
comparable PPM platforms.* Broad knowledge of Clinical, Regulatory, Safety, and Research Lab processes within consumer health and life sciences.* Skilled in integration technologies, APIs, middleware, master data, and enterprise data flows.* Solid grounding in GxP, CSV, data integrity, and regulatory compliance.**Data and AI Literacy/Fluency:*** The role will ...

IT Deployment Engineer

Hiring Organisation
Ganymede Solutions
Location
Bromley, Bromley Town, Greater London, United Kingdom
Employment Type
Contract
testing. You will be comfortable working with operational stakeholders and third-party suppliers, bringing a personable and proactive approach to problem solving. Experience with middleware platforms would be highly advantageous, as would exposure to cloud technologies such as AWS. Candidates with experience in retail, EPOS or payment systems environments ...

Domain Architect - Technology

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
trade‐offs Key responsibilities Foundational D&T Architecture (Security & Resilience First) Define domain strategies and target architectures across: Integration (API‐first, event‐driven architectures, middleware) Network & Hosting (cloud, hybrid, on‐prem, connectivity) Data Technology Platforms (data infrastructure, analytics platforms) Transactional AI (AI embedded into operational systems) Digital Workplace (collaboration, devices ...

Salesforce Vlocity CPQ Architect

Hiring Organisation
IBU CONSULTING LTD
Location
London, United Kingdom
Employment Type
Contract
components including OmniScripts, DataRaptors, Integration Procedures, and FlexCards. Ensure seamless integrations between Salesforce Industries and external OSS/BSS systems, billing platforms, CRM, ERP, middleware, and order management systems. Define integration patterns using REST/SOAP APIs, Platform Events, middleware platforms, and microservices architecture. Lead architecture governance, code reviews, solution … Strong Salesforce platform knowledge including Apex, Lightning Web Components (LWC), Flows, and APIs. Experience integrating Salesforce with external systems using REST, SOAP, ETL, and middleware technologies. Knowledge of Salesforce security architecture, governor limits, and platform best practices. Experience with DevOps tools such as Git, Copado, Gearset, Jenkins, or Azure DevOps. ...

Technology & Solution Lead – Workforce Management

Hiring Organisation
Intec Select Ltd
Location
London, Billingsgate, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £750/day
knowledge between Time, HR, Scheduling, and Payroll systems. Excellent documentation and stakeholder communication skills (technical and non-technical). Experience with common platforms and middleware (e.g., UKG/ATOSS, SAP, Workday, Boomi, MuleSoft, CPI). Details: £750 P/D (Inside IR 35) Hybrid role (2 days P/ ...

Integration Specialist – Workforce Management

Hiring Organisation
Intec Select Ltd
Location
London, Billingsgate, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £750/day
Time results to payroll engines (hours, premiums, exceptions, retro adjustments) Scheduling data exchange (planned shifts, changes, absences interplay) Implement secure integration patterns (API, file, middleware), including encryption, error handling, retries, and monitoring Develop reconciliation and control reports to ensure end-to-end completeness and accuracy Support SIT/ ...

Financial Delivery Manager

Hiring Organisation
Pontoon
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£700/day Inside IR35
Experience delivering in complex, multi-team environments (financial services preferred) Strong stakeholder management able to challenge and drive outcomes Understanding of data resilience across middleware, cloud, and core systems Experience identifying and managing risks and controls Comfortable working with data tracking, reporting, and structured analysis Exposure to operational resilience regulation ...

Solace Middleware Engineer

Hiring Organisation
Reed Talent Solutions
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 700 - 750 Daily
Solace Middleware Engineer We are seeking a Solace Middleware Engineer to join our specialised Middleware and application platform support team within the Global Investment Bank's dedicated low-latency infrastructure. This role is pivotal in supporting electronic trading systems across Forex (FX) and Fixed Income (FI) markets. The successful candidate … will possess deep technical expertise in Solace Middleware and a practical understanding of trading workflows and ultra-low latency requirements. Essential Skills: Expert-level knowledge of Solace PubSub+ platform. Hands-on experience configuring Solace message VPNs, queues, topic endpoints, bridges, and DMR. Proven ability to tune Solace for ultra ...

Integration Architect

Hiring Organisation
Halian Technology Limited
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 600 Daily
Application Design Analyst (ACE/Middleware) Contract Location: UK (GBS UK) Contract Type: Contractor - Inside IR35 Division: Group Business Solutions (GBS) About the Role IT sits at the heart of the organisations business, enabling continuous innovation while delivering cost-effective, high-quality services to clients globally click apply for full ...

Senior Tech App Support Specialist - June 2026

Hiring Organisation
Tenth Revolution Group
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £70,000 per annum
around AI adoption, including internal tooling and platforms Experience: - Strong in application support at a senior level- Proven experience supporting integrated systems environments (APIs, middleware, or similar)- Experience in a professional services or corporate environment, supporting senior stakeholders- Google Cloud platform experience - Strong communication skills - Experience working in an accelerated ...

Regional VP & GM, Field Sales — Enterprise Software Growth

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Greater London territory. This role requires over 10 years of enterprise software sales experience, fluency in English, and a track record in middleware and data integration solutions. The candidate will own the revenue plan, manage a sales team, and engage with clients. The position offers a dynamic startup environment with ...

Mainframe Middleware Infrastructure Engineer (CICS Liberty)

Hiring Organisation
Gazelle Global Consulting Ltd
Location
London, United Kingdom
Employment Type
Contract
Mainframe Middleware Infrastructure Engineer (CICS Liberty) 6-12 Month Contract | London or Edinburgh | Hybrid (2-3 Days Onsite) | Excellent Day Rate We're looking for an experienced Mainframe Middleware Infrastructure Engineer with strong expertise across CICS, z/OS and IBM WebSphere Liberty to support a major enterprise transformation programme. … data Capacity planning, resilience, HA/DR and operational support Experience with CI/CD pipelines, automated deployments and release processes Monitoring, observability and middleware operational management This is an excellent opportunity to work on critical banking and financial services infrastructure whilst helping modernise core mainframe platforms with contemporary Java ...