IBM DataPower Engineer – Mainframe Modernisation (Contract) We’re recruiting for an experienced IBM DataPower Engineer to support a large-scale mainframe modernisation programme within a complex enterprise environment. This is a contract role, ideal for specialists in secure API integration and legacy-to-digital transformation. The Role You’ll design, build and support high-performance integration solutions using IBM DataPower Gateway, exposing core mainframe services as modern APIs. Working across hybrid environments, you’ll bridge z/OS applications with API platforms and cloud-native services, ensuring security, resilience and scalability. Key Responsibilities * Design and configure IBM DataPower services (MPGW, XML Firewall, WS-Proxy) * Expose CICS, IMS, DB2 and MQ services via REST/JSON and SOAP APIs * Implement API security including OAuth2, JWT, TLS/mTLS and AAA policies * Deliver XSLT and GatewayScript transformations and schema validation * Integrate with backend platforms including MQ, Kafka and relational databases * Support CI/CD automation using SOMA/REST APIs, Jenkins or Ansible * Ensure high availability, performance tuning and regulatory compliance (e.g. PCI, GDPR) Required Skills * Strong hands-on experience with IBM DataPower Gateway * Proven mainframe integration experience (CICS, IMS Connect, MQ, CTG) * Deep knowledge of API security, XSLT and GatewayScript * Experience with API management platforms and DevOps automation * Background in mainframe or legacy system modernisation projects Contract Details * Contract role * Hybrid working * Competitive day rate * Initial 6-month engagement Apply now if you’re a DataPower specialist looking to deliver impactful mainframe modernisation work within a high-profile programme

Role: Oracle Cloud Integrations Specialist
Location: London - Primarily remote, with occasional travel to UK office locations (approximately once per month)
Contract Type: 6 months
Rate: £650 Daily Rate Umbrella

Restrictions: SC Clearance required Restrictions Apply

SOLOS Consultants are working with a public-sector organisation to identify an experienced Oracle Cloud Integrations Specialist for a long-term contract engagement

Role Overview

You will play a key role in delivering and maintaining complex Oracle Cloud integrations, working across existing and new workstreams. The role involves hands-on development, integration design, and collaboration within a delivery team operating in a secure environment.

Key Responsibilities

Design, develop, maintain, and enhance integrations using Oracle Integration Cloud (OIC)

Build and support custom applications using Oracle Visual Builder Cloud Service (VBCS)

Integrate Oracle Fusion Cloud applications (ERP and HCM) with other enterprise systems

Develop and unit test integrations using REST, SOAP, and JSON payloads

Produce and maintain integration design documentation and release notes

Work with predefined statements of work and deliver agreed technical outcomes

Collaborate closely with architects, developers, and stakeholders

Support DevSecOps delivery into development and test environments

Troubleshoot integration issues and contribute to continuous improvement

Essential Skills & Experience

Minimum 3 years experience in software or integration development

At least 2 years hands-on experience with Oracle Integration Cloud (OIC)

Experience developing custom applications using Oracle VBCS

Strong experience integrating Oracle Fusion Cloud (ERP and/or HCM)

Proven experience with REST and SOAP web services

Experience working with OAuth, IAM, and JWT security technologies

Strong understanding of systems integration best practices and architectural patterns

Experience with XML, JSON, XSLT, Git, Postman, and related tools

Strong communication skills and ability to work effectively as part of a team

Desirable Experience

Knowledge of Oracle Cloud Infrastructure (OCI)

Experience working within public cloud (IaaS) environments

DevOps or CI/CD pipeline experience

Knowledge of change and release management processes

Experience working in secure or regulated environments

Security & Eligibility

Active UK Security Clearance (SC) is required

Candidates must be Sole British Nationals

This role is inside IR35

Constraints:

Candidates submitted for this role must be Sole British nationals, to confirm:

They are a Sole British citizen, and

They have been a resident in the UK for at least two of the last 5 years

Due to the nature of this work Government security clearance if not already held will need to be obtained.

The minimum clearance required for this role is SC.

(Although advantageous, it is not a requirement that an individual already holds Security Clearance.)

Candidates who do not currently hold clearance must be able to obtain the appropriate level of clearance for the role specified. Short-listed candidates will be submitted for vetting procedures before being formally offered the position. This process can take 6-8 weeks.

If this role is of interest and you meet the above criteria, then please apply immediately.

3 Month initial contract
Location: Remote - must be able to travel to office locations as & when needed. Once a month max.
650 per day (Inside IR35)

Key Essential Skills
Oracle integration cloud experience
Variety of integration that they have done using rest API.
AMS Confidential
Set of deliverables given, they can work with this and crack on.
Oracle VBCS

The Role requires in-depth Knowledge OCI (Oracle Cloud Infrastructure) and particular experience of Oracle Integration Cloud (OIC) with ideally developed custom applications using Oracle VBCS using a SECDEVOPS process to deploy to dev and test environments.

You will be expected to work to specify technical requirements for the existing and new integrations required for the service, this involves developing, validating and reviewing physical integration designs and producing Release Notes.

Mandatory
Strong Development Experience
Good Oracle Integration Cloud (OIC) Experience
Good Oracle Fusion Cloud Experience
Hands-on with development & unit testing of integration components & web services (SOAP/REST/JSON Payload) using OIC, Postman, Curl
Oracle VBCS to develop custom elements of the service
Strong experience of system interfaces (predominantly on a PaaS Cloud)
Teamwork and Collaboration Skills
Oracle ERP, HCM connectivity using Oracle Integration Cloud
OAUTH, IAM, JWT Technoligies
GIT, XML, JSON, XSLT, SOAPUI, Postman, Curl
In depth knowledge of systems integration best practices and common architectural patterns.

Desirable
Knowledge of public cloud (IaaS) technologies including relevant security and IAM controls
Security administration and auditing of privileged systems access.
Provide the technical delivery progress, resolving issues and initiating appropriate corrective action
Ensuring the delivery of new products or services from the technical workstream is to the appropriate level of quality in accordance with the workstream plan
Knowledge of Change/Release Processes
Devops experience
Deep understanding of Technologies, platforms
Development and Maintenance of Key Designs
Understanding of security best practice with regards to development of new services

Disclaimer:

This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering Limited (“ARM”). ARM is a specialist talent acquisition and management consultancy. We provide technical contingency recruitment and a portfolio of more complex resource solutions. Our specialist recruitment divisions cover the entire technical arena, including some of the most economically and strategically important industries in the UK and the world today. We will never send your CV without your permission. Where the role is marked as Outside IR35 in the advertisement this is subject to receipt of a final Status Determination Statement from the end Client and may be subject to change.

Boomi Integration Engineer

Remote Contract

Outside IR35

Role Summary

We re looking for a hands-on integration engineer to design, build, test, and support enterprise integrations using Boomi. You ll work with business stakeholders and engineers to connect SaaS apps, on-prem systems, and data sources using APIs, event/file patterns, and integration best practices.

Key Responsibilities

• Build and maintain Boomi processes (API, event, batch, and file-based integrations).
• Design integrations end-to-end: requirements mapping error handling deployment monitoring.
• Develop and publish APIs (REST/SOAP) with appropriate security (OAuth2, basic auth, certificates, IP restrictions).
• Implement data transformations (JSON/XML/CSV), mapping, validation, enrichment, and canonical models.
• Set up and manage Boomi runtime/Atoms (Atom, Molecule, Atom Cloud) and environments.
• Configure connectors (CRM/ERP/databases/SFTP/HTTP) and manage credentials securely.
• Establish exception handling, retries, dead-letter patterns, alerting, and operational runbooks.
• Support testing (unit/integration/UAT), performance checks, and test data setup.
• Diagnose production issues, perform root-cause analysis, and deliver fixes with minimal downtime.
• Maintain documentation (interface specs, mappings, diagrams, deployment notes, dashboards).
• Collaborate with security/compliance on data protection, audit trails, and access controls.

Required Skills & Experience

• 4+ years delivering integrations on Boomi (or equivalent iPaaS with strong Boomi hands-on capability).
• Strong knowledge of integration patterns: synchronous vs async, pub/sub, idempotency, batching, pagination.
• API fundamentals: REST, SOAP, OpenAPI basics, webhooks, status codes, versioning.
• Data formats & transformation: JSON, XML, CSV; mapping and validation; basic XSLT helpful.
• Operational discipline: logging, monitoring, alerting, incident response.
• Environment & release practices: dev/test/prod separation, change control, rollback.
• Strong troubleshooting skills (HTTP traces, connector errors, payload inspection).
• Good communication and ability to translate business requirements into integration design.

Desirable / Nice to Have

• Boomi certifications (Developer/Professional/Architect).
• ERP/CRM integration experience (e.g., Salesforce, NetSuite).
• Messaging/event platforms (Azure Service Bus, Kafka, MQ).
• CI/CD exposure (Git, pipelines) and automated testing for integrations.
• Cloud fundamentals (networking, secrets management, certificates).
• Familiarity with GDPR/PII handling and audit logging.

Deliverables

• Reliable integrations with agreed SLAs and monitoring.
• Clear documentation and operational guides.
• Stable deployments with minimal defects and quick incident recovery.

If you don’t match all of the requirements on the brief, please do still apply. All CVs will be reviewed and all candidates carefully considered. We understand that nobody can have experience in everything, and that some things cand be learned on the job.

The rate is dependant on experience and can be discussed openly on a screening call. A two-stage interview process will follow, and the successful applicant will start as soon as possible.

Work Location: London

Work Mode: Hybrid (2-day Onsite in London)

Day Rate: £600-£650 - Inside IR35

Our client, a major UK-focused bank offering retail, commercial, and private banking services are urgently looking for an IBM DataPower Engineer with mainframe Modernization experience. The successful candidate will be responsible for designing and implementing secure, high-performance integration solutions using IBM DataPower Gateway to expose mainframe services (CICS, IMS, DB2, MQ) as modern APIs (REST/JSON, SOAP). Enable legacy-to-digital transformation by bridging z/OS applications with API platforms and cloud.

Your responsibilities:

• Develop and configure DataPower services (MPGW, XML Firewall, WS-Proxy) for protocol mediation and security.
• Implement OAuth2, JWT, TLS/mTLS, and AAA policies for secure API access.
• Integrate with CICS, IBM MQ, and DB2 for backend connectivity.
• Connect to database like PostgreSQL via REST/HTTP Services Via JDBC through Integration Layer, MQ or Kafka Bridge.
• Perform XSLT/GatewayScript transformations and schema validations.
• Automate deployments via SOMA/REST APIs, CI/CD tools (Jenkins, Ansible).
• Ensure high availability, performance tuning, and compliance (PCI DSS, GDPR).

Essential skills/knowledge/experience:

• Strong experience in IBM DataPower Gateway configuration and troubleshooting.
• Knowledge of Mainframe integration patterns (CTG, IMS Connect, MQ).
• Expertise in API security, XSLT, and GatewayScript.
• Familiarity with API Connect, DevOps automation, and observability tools.

Desirable skills/knowledge/experience:

• Mainframe modernization experience

Forward your CV NOW, for the chance to work for a major UK-focused bank that believe in building and sustaining a culture of equity and belonging where everyone can thrive.

Mainframe Developer With Cics Webservices Job Description Role Overview

Role / Job Title: Mainframe Developer with CICS Webservices

Work Location: London
Mode of Working: Hybrid
Office Requirement (if hybrid): 2 3 days a week

Key Skills Required

Mainframes
CICS Webservices

Required Skills

Experience working in ZOS Connect EE and DB2 REST, with extensive knowledge in CICS webservices.
Development experience using FileAid, Xpeditor, IBM Explorer for z/OS, and Visual Studio.
Proficient with SOAP, WSDL, and JSON, with a comprehensive understanding of SOA and RESTful APIs.
Experience working with code repositories, bug tracking tools, and wikis. Tools include GitLab, Endevor, JIRA, and Confluence.
Knowledge of different security integration patterns such as basic authentication, client authentication (mTLS), and OAuth (JWT).
Experience with DevOps and Agile methodologies and associated toolsets and practices, including CI/CD and Jenkins.

Desirable Skills / Knowledge / Experience Option 1: Java-Based Skills

Java skill set.
Strong foundation in Java, including OOP and functional programming (Java 8+).
Familiarity with Spring Boot annotations, configuration, and how it simplifies Spring application setup and deployment.
RESTful API development experience.

Option 2: Integration & Middleware Skills

Hands-on experience using DataPower appliances.
Development experience using XSLT, Gateway Script, and XPath.

Were looking for an Oracle Developer for our public sector client on an initial 6 month contract paying up to £650 per day inside IR35.

This role is remote, with an expectation to attend the London site 1 day per month at a maximum.

You need to hold or be able to pass Security Clearance (SC) and sole UK status to be considered.

Workload is increasing, and the team needs support across several integrations and custom elements already in development. Youll pick up defined deliverables, work through the full development lifecycle, and help integrate existing systems with new functionality. Expect a mix of new builds and enhancements to current workstreams.

Essential experience:

Strong development background

Oracle Integration Cloud

Oracle Fusion Cloud

Integration work with SOAP, REST, JSON

OIC, Postman, Curl

Oracle VBCS

ERP and HCM integrations via OIC

OAUTH, IAM, JWT

GIT, XML, JSON, XSLT

Desirable:

Public cloud and security knowledge

DevOps background

Experience with change and release processes

Understanding of secure development practices

Interested?

Please apply below.

Oracle Integration Cloud, OIC, Oracle Fusion, Oracle ERP, HCM, VBCS, OCI, Integrations, REST, SOAP, JSON, SC Cleared, Inside IR35.

OurclientislookingforanexperiencedOracleCloudIntegrationsSpecialisttosupportamajorprogrammeofcomplexchange,involvingmultiplecustomelementscurrentlyindevelopment.TheroleinvolvesdeliveringalargepipelineofintegrationsusingOracleIntegrationCloud(OIC),maintainingexistingworkstreams,anddevelopingnewintegrationcomponentsbasedondefinedStatementsofWork.

Thisisahands-ontechnicalrolerequiringstrongexpertiseinOracleCloudInfrastructure(OCI),OracleIntegrationCloud(OIC),andOracleVBCS,workingwithinaSECDEVOPSenvironmenttosupportdeploymentsintodevelopmentandtestenvironments.

Youwillberesponsiblefordefiningtechnicalrequirementsfornewandexistingintegrations,validatingintegrationdesigns,andproducingkeydocumentationincludingReleaseNotes.

PLEASENOTE:Remote(musttraveltoofficelocationsasrequiredapprox.oncepermonth)

CoreResponsibilities

• DeliverandenhanceintegrationsandcustomcomponentsusingOracleIntegrationCloud.
• Workthroughthefulldevelopmentlifecycletointegratenewfunctionalitywithexistingsystems.
• Maintainandbuildontopreviouslydeliveredintegrationworkstreams.
• TakeassignedSOWs/tasksandworkindependentlytodeliverhigh-qualityoutputs.
• Develop,validate,andreviewphysicalintegrationdesignsandproducerelatedtechnicaldocumentation.
• DeployVBCSapplicationsintodevandtestenvironmentsusingSECDEVOPSpractices.
• Workcollaborativelywithinamultidisciplinarytechnicalteam.

MandatorySkills&Experience

• 3+yearsdevelopmentexperience.
• 2+yearsOracleIntegrationCloud(OIC)experience.
• 2+yearsOracleFusionCloudexperience.
• Hands-ondevelopmentandunittestingofintegrationcomponents&webservices(SOAP/REST/JSON),usingOIC,PostmanandCurl.
• ExperiencedevelopingcustomelementsusingOracleVBCS.
• 3+yearsexperienceworkingwithsysteminterfaces,particularlyPaaScloudintegrations.
• Strongcommunicationandteamworkskills.
• ExperienceintegratingOracleERPandHCMviaOIC.
• KnowledgeofOAUTH,IAM,JWTtechnologies.
• ExperiencewithGIT,XML,JSON,XSLT,SOAPUI,Postman,Curl.
• Strongunderstandingofsystemsintegrationbestpracticesandarchitecturalpatterns.
• Excellentwrittenandverbalcommunicationskills.

DesirableSkills

• Knowledgeofpubliccloud(IaaS)technologiesincludingsecurityandIAMcontrols.
• Experienceinsecurityadministrationandauditingofprivilegedsystemsaccess.
• Abilitytoprovidetechnicaldeliveryprogressupdates,resolveissues,andimplementcorrectiveactions.
• Understandingofchangeandreleasemanagementprocesses.
• ExperienceinDevOpsenvironments.
• Strongunderstandingofmodernintegrationtechnologiesandplatforms.
• Experienceproducingandmaintainingtechnicaldesigndocumentation.
• Awarenessofsecuredevelopmentbestpracticefornewcloudservices.

12-Month FTC with a view to go permanent
London (Hybrid 4 days onsite)
Salary up to £75k + Excellent Benefits Package

Leading financial services firm seeking an experienced Business Analyst to join a London based technology team.

Key responsibilities:

• Business & regulatory requirements gathering
• Regulatory reporting delivery
• Liaison between business, technology and vendors
• System implementation, deployment and go-live support

Key skills:

• Business Analyst experience in Asset Management / Financial Services
• Strong financial instruments knowledge (fixed income, derivatives, FX)
• Advanced SQL (Oracle & SQL Server)
• XML/XSLT, messaging systems, Excel/VBA
• Experience in regulated or trading environments

Apply now using the links provided with your latest CV.

Business Analyst / BA / Technical BA / Finance / Investment / FX / Trading / ETD / Fixed Income / Equities / Bank / Banking / Financial / Asset Management / SQL / XSLT / XML / VBA / London / START ASAP

Role / Job Title: BizTalk DeveloperWork Location: Crawley, UKOffice Attendance (Hybrid): 3 days in officeThe RoleWe are seeking an experienced BizTalk Developer to support a major upgrade project for one of the UK’s leading airline customers. The current environment runs on BizTalk Server 2013 R2, and we are planning to migrate to BizTalk Server 2020 hosted on Azure IaaS.Your ResponsibilitiesFunctional Responsibilities

• Lead and support migration of BizTalk Server 2013 R2 to BizTalk Server 2020 on Azure IaaS virtual machines.
• Assess current integration solutions, identify dependencies, and develop migration plans.
• Prepare detailed migration documentation, design documents, and runbooks.
• Support environment provisioning, configuration, and testing in Azure IaaS.
• Validate migrated artifacts - schemas, maps, orchestrations, pipelines, and adapters - ensuring they function correctly post-upgrade.
• Conduct unit, integration, system, and UAT testing with stakeholders.
• Provide production cut-over support and post-migration stabilization.

Technical Responsibilities

• Perform artifact migration including orchestrations, maps, schemas, pipelines, bindings, and custom components from BizTalk 2013 R2 to BizTalk 2020.
• Reconfigure and test adapters and ports after migration.
• Troubleshoot issues related to BizTalk artifacts, SQL performance, and connectivity.
• Support deployment automation and CI/CD integrations for BizTalk solutions.
• Ensure security configurations, certificates, and access controls are correctly applied in Azure environments.

Your ProfileEssential Skills / Knowledge / Experience

• Microsoft BizTalk Server 2013 R2 and BizTalk Server 2020.
• BizTalk artifacts - schemas, maps, orchestrations, pipelines, bindings, adapters.
• .NET / C#, XML, XSLT.
• REST / SOAP APIs.
• Basic SQL knowledge.
• DevOps / CI-CD.
• Basic Azure.

Preferred Qualifications

• Microsoft certification in BizTalk Server or relevant Azure certifications.
• Experience with multi-environment migrations (Dev / Test / QA / Prod).
• Familiarity with Azure PaaS integration options (Logic Apps, Service Bus) is a plus.
• Strong understanding of integration patterns and best practices.

Job Title : Workday Integration Developer
3 months
Remote
Inside IR35 - umbrella only

Role requirements:

• Minimum of 3 years of experience with Workday HCM integrations - development, maintenance & support.
• Experience of Workday Integration Tools: Proficiency with Workday’s integration tools and technologies, including Workday Studio, Enterprise Interface Builder (EIB), and Workday Web Services (WWS).
• System Integration: Skills in integrating Workday with external systems, such as ERP, CRM.
• Workday report writer and Payroll interfaces PECI & PICOF.
• Programming Languages: Knowledge of programming languages such as XSLT for data transformation and scripting languages like JavaScript or Groovy for custom integrations.
• API Integration: Experience with RESTful and SOAP APIs to connect Workday with other systems and applications.
• Data Formats: Familiarity with various data formats like XML, JSON, and CSV for data exchange and transformation.
• Database Skills: Understanding of database concepts and SQL for managing and querying data.
• Security and Authentication: Knowledge of security protocols and authentication methods, such as OAuth and SAML, to ensure secure data exchange.
• Error Handling and Debugging: Ability to troubleshoot and debug integration issues to ensure seamless operation.
• Testing and Validation: Experience with testing and validating integrations to ensure they meet business requirements and work correctly in various scenarios.
• Change Management: Skills in managing changes to integration configurations and ensuring minimal disruption to business operations.

Preferred Technical and Professional Experience

• Candidate must be Workday Integration certified

• Strong understanding of Workday integrations across multiple modules

• Workday Pro Certifications

• Excellent problem-solving skills and attention to detail.

• Strong communication and interpersonal skills.

• Ability to work collaboratively with cross-functional teams.

• Experience with requirements gathering, testing, validation, end-user training, troubleshooting and support.

• Knowledge of industry best practices for Workday implementations.

• Ability to manage multiple projects and priorities simultaneously.

• Strong analytical and critical thinking skills.

Key Responsibilities

• Design, implement, and maintain integrations between Workday and other systems.
• Integration Design: Develop integration solutions that meet business needs by designing and configuring Workday integrations using tools such as Workday Studio, Enterprise Interface Builder (EIB), and Workday Web Services (WWS).
• Data Mapping and Transformation: Create data mapping and transformation rules to ensure that data flows accurately between Workday and other systems.
• API Development: Utilize RESTful and SOAP APIs for integrating Workday with external applications and systems, ensuring data is exchanged correctly.
• Integration Testing: Perform comprehensive testing of integrations to validate that they function correctly, handle errors appropriately, and meet business requirements.
• Troubleshooting and Support: Identify, diagnose, and resolve integration issues, providing ongoing support to ensure seamless operation. Based on the severity of cases, the SLA need to be met.
• Documentation: Create and maintain detailed documentation of integration designs, configurations, data mappings, and troubleshooting steps for future reference and compliance.
• Collaboration: Work closely with functional consultants, IT teams, and business stakeholders to gather requirements, understand integration needs, and ensure successful implementation.
• Change Management: Manage and implement changes to integrations, including updates and enhancements, while minimizing disruptions to existing systems.
• Performance Monitoring: Monitor the performance of integrations and address any performance issues to maintain efficient data flows.
• Compliance and Security: Ensure that integrations comply with data security standards and organizational policies, implementing proper security measures and authentication protocols.
• Ensure that Workday integrations are well-designed, reliable, and aligned with business processes and goals.
• Leading and prioritizing backlog with guidance from Product Management, Engineering, Support/Operations.