Experis UK
Senior Scala Engineer CGEMJP00355784
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Job title: Senior Scala Engineer
Rate: up to £637 per day - Umbrella only
Start date: 14/12/2026
Duration: 6 months
Location: Stratford, London (hybrid remote working)
Clearance: Active SC clearance required
CIP is driven by the principal need to detect and prevent fraudulent access to taxpayer data and prevent organised repayment fraud.
Attribute Reputation is the process through which large amounts of data are collated from tax transactions to glean insights into common attributes. In particular, we assert their validity and derive risk scores to transactions based on whether the attributes in question, or other attributes used in combination with that attribute, have been used in historic transactions associated with past suspicious or fraudulent activity.
Collaboration with other data product and front-end product teams will form the core of creating a frictionless customer experience to exploit the digital audit data that CIP holds.
Insights from Attribute Reputation are crucial for the company's services, and the team is pioneering data sharing with other government departments and local authorities.
Role Description
As a Senior Scala Engineer in the AttRep Team you will define and shape the way we deliver the front-end Attribute Reputation services (APIs) to Digital services to provide attribute insights for fraud detection and prevention across the business.
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This Work Involves
- Help design a future vision for our Att Rep services, including consolidation, to allow us to provide a consistent and easy to use experience for users.
- Consideration for delivering high-volume, high-availability and low-latency services.
- Improvement of our existing services.
- Reducing our maintenance efforts through incremental re-architecting - e.g. reducing the number of technologies that are required to support the pipeline & using managed services where appropriate.
- Design and develop clean functioning, testable code on the back-end, write effective APIs, develop and manage well-functioning databases and applications with security and data protection settings.
- Collaborate with the AttRep product owner, business analyst, data engineers and the wider CIP teams to ideate software solutions.
Desired Behaviours
- Be proactive.
- Responsible and motivated self-starter.
- User centric attitude.
- Prioritise people over processes.
- Drive lean results; understand the value of iterative delivery.
- Be evidence driven.
- Advocate for 'doing the right thing'.
- Help others understand your work through co-participatory design, pairing, demos and documentation.
- Make complex look and sound simple.
- Be kind, creative and convincing.
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How We Work
We favour:
- Breaking down a high-level problem as a team upfront and delivering the core value first.
- Delivering individual business benefits to production, rather than bundling tasks together.
- Collaboration, communication, regular pairing and thoughtful course-correction.
- Taking the time to write simple and easy to maintain code.
- Willingness to make and participate in improvements for the greater good of CIP.
- Working cross-discipline rather than adhering to tightly defined roles.
Knowledge & Experience
- Security clearance (SC-level).
- API design.
- Data analysis.
- Databases.
- AWS suite experience.
- Awareness of Site Reliability Engineering and support.
- Skilled at returning services to good states in outage situations.
- Understands the importance of testing and automation.
- Working in a lean, agile environment.
- Working in a "you build it you run it" team.
- Experience coding in continuous integration context.
Essential
Skills & Technologies
- Scala.
- Play or other MVC/Rest API frameworks.
- SQL.
- AWS Suite.
- Continuous Integration.
- Agile methodologies.
Desirable
- Containerisation principles / Docker.
- Jenkins.
- Kibana.
- Grafana.
- Airflow.
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