Developer – Scala (Play) and ETL (D)

Closing date for applications: 27/01/2023
Specialist role
Summary of the work
Develop iterations of a consolidated pan-archival catalogue to meet users’ needs, including services/APIs in Scala (Play) and ETL processes.
Latest start date
Expected contract length
6 months contract with possible extension of 3 additional months
Organisation the work is for
The National Archives
Maximum day rate
Early market engagement
We ran Discovery and Alpha phases. You can read more about the project: Discovery phase produced a proposal for a new Catalogue Data Model using RDF, a new identifier scheme, and an Extract, Transform and Load process to migrate catalogue data from a relational database to RDF. We have built the first version of an API and are just starting to build the initial screens having held workshops identifying the key ways that staff managing the catalogue work with the data and what they would like in future. The archivist needs to search, analyse, add to, correct, edit, and enhance record descriptions individually and in bulk so that the catalogue is properly maintained.We now seek a specialist developer to speed up progress on the delivery of a Private Beta with the following work strands:• Data extraction and transformation into RDF• Cloud-based data services• Editorial web application services user interface for users to view, edit and save metadata• API services
Who the specialist will work with
The specialist will work with a Technical Architect and two RDF Developers. The core in-house team is the Service Owner, Product Manager/Data Analyst, Delivery Manager, a Senior Archivist, and the Head of Cataloguing, Taxonomy and Data. The specialists will also work with a wider group of users including archivists and editors across the organisation responsible for the management of the catalogue.
What the specialist will work on
We are developing a Pan-Archival Catalogue and management system, bringing together record descriptions from multiple catalogues into a single new system. You will join a Technical Architect and two other Scala and RDF developers to work on multiple iterations of the Beta development.We will be continuing with the Extract, Transform and Load process and will be developing services in Scala, using Play Framework for the frontend, to enable users to search, select, add, edit, import, export and delete data via a UI. We will be developing further API services to enable integration between the Catalogue and other TNA systems.
Address where the work will take place
The National Archives, Bessant Drive, Richmond, Surrey TW9 4DU
Working arrangements
Remote working is the main arrangement for this project, with monthly team work sessions in person (3 consecutive days, occasionally up to 5 days) conducted at The National Archives, Bessant Drive, Richmond, Surrey TW9 4DU.
Security clearance
Baseline security clearance will be required.
Additional terms and conditions
How many specialists to evaluate
Cultural fit criteria
-Have collaborative and flexible working approach, e.g., working with in-house technical and other digital specialists, ready to attend monthly work sessions in person -Approach to supporting teams to adopt new technologies -Examples of delivering transition, knowledge transfer and handover of code -An appreciation for the importance of technical documentation as a means of ensuring ongoing maintainability of systems -Demonstrable commitment to working within a diverse working environment, with a team comprised of experts from a wide variety of backgrounds
Assessment methods
Evaluation weighting
Technical competence 60% Cultural fit 20% Price 20%
Essential skills and experience
  • Have experience with using standards-based ontologies/vocabularies, such as W3C PROV data model and Dublin Core
  • Have experience of working with graph databases (for example AWS Neptune), SPARQL, and validating RDF data (for example using RDF SHACL)
  • Have experience, knowledge and understanding of building Extract, Transform, Load (ETL) processes
  • Have experience, knowledge of Scala and an understanding of working with mixed content in the context of large, semi-structured datasets
Nice-to-have skills and experience
  • Have experience developing a user interface/front end to support non-expert, editorial engagement with graph data
  • Experience of using Play Framework

Closing date for applications: 27/01/2023

Developer – Scala (Play) and ETL (D)

Closing date for applications: 27/01/2023

Specialist role:





The National Archives

Maximum day rate:


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