Integration Engineer (NPPV3)

TXP; North Warwickshire; Hybrid; GBP 101,000 - 111,000; Full time

Job summary

TXP in Warwickshire is seeking an experienced Integration Engineer (NPPV3) to lead the interface workstream for a major HR transformation using Oracle Fusion and Crown DMS. This hybrid role sits in a governance-driven programme with a focus on secure, reliable data integrations across enterprise systems.

You will design, implement and test API-led integrations, REST/Web Services and file-based flows, review third-party designs, and support deployment readiness while engaging stakeholders and

Qualifications

• NPPV3 clearance is mandatory.
• Experience as an integration-focused engineer or similar role.
• Proven ability to design and implement enterprise-scale integrations.
• Delivery of API-led integrations and middleware solutions.
• Strong stakeholder engagement and documentation skills.

Responsibilities

• Own the integration workstream across architecture, design, testing and deployment.
• Lead technical design reviews and challenge third-party designs where needed.
• Coordinate testing, deployment readiness and operational handover.
• Collaborate with suppliers and technical teams to ensure quality integrations.

Skills

NPPV3 Clearance

Integration Engineer

API-led integration

Enterprise-scale integrations

REST APIs

Stakeholder engagement

Tools

Oracle Fusion Cloud

Crown DMS

SailPoint

iTrent

Event-driven architecture

Job description

Integration Engineer (NPPV3) HR & Duties Replacement Programme Enhancement

Location: Warwickshire (Hybrid)

Contract: Initial contract through December 2026

Rate: £550 - £600 per day OUTSIDE IR35

Active NPPV3 Required

Overview

Our client is delivering a major transformation programme to replace existing HR and Duties capability (Origin) with a new strategic workforce management platform comprising Oracle Fusion and Crown DMS. The new solution will become the system of record for workforce, organisational, and employee data.

We are seeking an experienced Interface Engineer to take ownership of the integration workstream, providing technical leadership across interface architecture, design assurance, implementation, testing and deployment activities.

Essential Skills & Experience

• NPPV3 Clearance
• Proven experience as an Interface Engineer, Integration Engineer, or similar integration-focused role.
• Strong background designing and implementing enterprise-scale integrations.
• Experience delivering API-led integration's and middleware-based solutions.
• Experience delivering integration solutions across complex business-critical environments.
• Ability to review and challenge third-party technical designs.
• Strong stakeholder engagement and supplier management experience.
• Excellent documentation and communication skills.

Experience supporting testing, deployment, and operational readiness activities. With knowledge of:

• REST APIs
• Web Services
• File-based integrations
• ETL/data transformation processes
• Enterprise integration patterns

Desirable Experience

• Oracle Fusion Cloud integrations.
• Crown DMS integrations.
• SailPoint integrations.
• iTrent integrations.
• Event-driven architecture and messaging technologies.
• Public sector, emergency services, or policing environments.
• Large-scale HR, ERP, or Workforce Management transformation programmes.
• Experience working within governed programme delivery environments.

Ideal Candidate

The successful candidate will combine strong hands-on integration engineering expertise with the ability to work across architecture, delivery, governance and stakeholder engagement. You will have experience delivering complex enterprise integration programmes and be comfortable working with suppliers and technical teams to ensure high-quality, supportable integration solutions are successfully delivered