Integration Engineer in London

Integration Engineer in London

London Freelance 36000 - 60000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Design and maintain integrations using modern APIs to enhance digital services.
  • Company: Join HMRC's innovative ServiceNow Team driving digital transformation.
  • Benefits: Competitive day rate, inclusive culture, and opportunities for professional growth.
  • Why this job: Be part of a team making a real impact on government services for millions.
  • Qualifications: Experience with REST/SOAP APIs and integration flows is essential.
  • Other info: Collaborative environment with talented professionals and exciting challenges.

The predicted salary is between 36000 - 60000 £ per year.

HMRC’s ServiceNow Team are looking for an Integration Engineer for a day rate contract. HMRC is undergoing one of the largest digital transformations in the UK, and our ServiceNow Team sits at the heart of it. We’re modernising how 66,000+ colleagues access digital services, using the ServiceNow platform to drive automation, improve user experience, and deliver smarter, faster ways of working.

As part of our Chief Digital & Information Group (CDIO), you’ll help build and enhance enterprise‑wide ServiceNow capabilities across ITSM, HR, CSM, Security Operations and more. You’ll work with modern tools, collaborate with talented digital professionals, and contribute to meaningful change that impacts millions.

If you’re passionate about technology, eager to solve complex challenges, and want to be part of a supportive, inclusive team shaping the future of government services—HMRC’s ServiceNow Team is the place to grow your career.

Requirements
  • Point‑to‑point integrations between ServiceNow and SaaS/SaaP platforms
Main Responsibilities
  • Design, build and maintain point‑to‑point integrations using REST/SOAP APIs, IntegrationHub spokes, scripted REST APIs, or custom connectors.
  • Configure and support inbound and outbound integration flows, including authentication models such as OAuth, Basic Auth, and mTLS (where applicable).
  • Troubleshoot integration failures and data‑flow issues across development, modelling, test and pre‑production environments.
  • Ensure integration solutions are secure, compliant and aligned with platform governance (including security roles, ACLs, and logging requirements).
  • Work closely with Technical Architects and Product Owners to validate integration behaviour and perform end‑to‑end testing.
  • Maintain accurate artefacts such as sequence diagrams, data maps and API specifications for operational support and knowledge.

Integration Engineer in London employer: HM Revenue & Customs

HMRC is an exceptional employer, offering Integration Engineers the opportunity to be at the forefront of one of the UK's largest digital transformations. With a focus on collaboration and innovation, employees benefit from a supportive work culture that encourages professional growth and development while working with cutting-edge technology. Located in a dynamic environment, team members contribute to meaningful change that enhances government services for millions, making it a rewarding place to advance your career.
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Contact Detail:

HM Revenue & Customs Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Integration Engineer in London

✨Tip Number 1

Network like a pro! Reach out to current or former employees at HMRC or in the ServiceNow community. A friendly chat can give us insider info and maybe even a referral, which can really boost our chances.

✨Tip Number 2

Show off your skills! Prepare a portfolio or case studies showcasing your integration projects. We want to demonstrate how we’ve tackled complex challenges and delivered results, especially with REST/SOAP APIs.

✨Tip Number 3

Ace the interview! Research common integration scenarios and be ready to discuss how we’d troubleshoot issues or ensure compliance. Let’s show them we’re not just tech-savvy but also a great fit for their team culture.

✨Tip Number 4

Apply through our website! It’s the best way to ensure our application gets seen by the right people. Plus, we can tailor our application to highlight our experience with ServiceNow and integration solutions.

We think you need these skills to ace Integration Engineer in London

Integration Engineering
ServiceNow
REST APIs
SOAP APIs
IntegrationHub spokes
Custom Connectors
OAuth
Basic Auth
mTLS
Troubleshooting
Data Flow Management
Security Compliance
End-to-End Testing
Technical Documentation

Some tips for your application 🫡

Tailor Your CV: Make sure your CV is tailored to the Integration Engineer role. Highlight your experience with REST/SOAP APIs and any relevant projects you've worked on. We want to see how your skills align with what we're looking for!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Share your passion for technology and how you can contribute to HMRC’s digital transformation. Let us know why you're excited about this opportunity and how you can make a difference.

Showcase Your Problem-Solving Skills: In your application, don’t forget to mention specific examples where you've troubleshot integration failures or improved data flows. We love seeing how you tackle complex challenges and what solutions you've implemented.

Apply Through Our Website: We encourage you to apply through our website for a smooth application process. It helps us keep everything organised and ensures your application gets the attention it deserves. We can't wait to hear from you!

How to prepare for a job interview at HM Revenue & Customs

✨Know Your Tech Inside Out

Make sure you’re well-versed in the technologies mentioned in the job description, especially REST/SOAP APIs and IntegrationHub spokes. Brush up on your knowledge of authentication models like OAuth and Basic Auth, as these are likely to come up during technical discussions.

✨Showcase Your Problem-Solving Skills

Be prepared to discuss specific examples where you've troubleshot integration failures or data-flow issues. Use the STAR method (Situation, Task, Action, Result) to structure your answers and highlight how your actions led to successful outcomes.

✨Understand the Bigger Picture

Research HMRC’s digital transformation goals and how the ServiceNow Team fits into that vision. Being able to articulate how your role as an Integration Engineer contributes to improving user experience and driving automation will show your enthusiasm and alignment with their mission.

✨Prepare Questions for Them

Have a few thoughtful questions ready to ask at the end of your interview. This could be about the team dynamics, the tools they use, or how success is measured in the role. It shows you're genuinely interested and engaged in the opportunity.

Integration Engineer in London
HM Revenue & Customs
Location: London

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