Expire in: a month
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.
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 convincingHow 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
Skills & technologies
Essential:
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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