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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer (Digital Engineering & Semantic Data) - **Company:** Leonardo - **Location:** Luton, UK - **Experience:** Expert - **Salary:** £58,080.0 - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Java (Programming Language), Systems Engineering, Automation of Tests, Configuration Management, Concurrency Controls, Data Mapping, Distributed Data Store, Distributed Systems, Graph Database, Interoperability, Python (Programming Language), Neo4j, Node.Js, Semantic Web, Software Engineering, Product Software Implementation Methods, SPARQL, TypeScript, Management of Software Versions, Concurrency, Solid Principles, Information Technology - **Published:** August 28, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5858141772 ## About the Role Are you an experienced software engineer who enjoys tackling complex technical problems? Do you thrive in collaborative environments and want to contribute to the development of new capabilities that have a real impact across a wider business?, * Strong Coding Foundation: Proven expertise in a modern language (e.g., Python, Java, Node, or TypeScript) with a deep commitment to software craftsmanship and clean code. * Complex Data Experience: Experience handling data from heterogeneous, distributed sources. While experience with the Semantic Web stack (RDF, OWL, SPARQL) or Graph Databases (Neo4j, GraphDB, Stardog, etc.) is highly desirable, we value a strong engineering mindset and a willingness to learn these technologies. * Distributed Systems Knowledge: An understanding of the challenges associated with "tenuously connected" digital environments and distributed data. * Software Craftsmanship: A commitment to SOLID principles, maintainable architecture, and automated testing., * A degree in Computer Science, Mathematics, or a related field, or equivalent professional experience. * An interest in Knowledge Engineering and the ability to think in terms of relationships and abstractions. * A mindset that prioritises composability and scalability over quick, hard-coded fixes. This is not an exhaustive list, and we are keen to hear from you even if you might not have experience in all the above. The most important skill is a good attitude and willingness to learn. ## Description You will work alongside software engineers, systems engineers, data specialists, and domain experts to solve complex challenges, while having opportunities to learn and apply modern technologies and approaches. This role is ideal for a software craftsman who is motivated by the challenge of building high-abstraction digital environments and is eager to apply their skills to a cutting-edge technical project., You will help build the digital fabric that connects our distributed engineering landscape. By implementing a graph-based "Digital Thread," you will enable the seamless flow of enriched information across partners and teams, ensuring that our engineering ecosystem is resilient, scalable, and logically consistent. * Implementing the Digital Thread: Developing software that transforms fragmented data from disparate sources into a unified, ontology-driven Knowledge Graph. * Enabling Composable Engineering: Building a digital environment where relationships between engineering artefacts are first-class citizens, allowing for flexible and concurrent views of the system. * Solving Distributed Interoperability: Creating mechanisms that allow tenuously connected environments and partners to contribute to a shared semantic representation without requiring rigid, point-to-point tool integration. * Driving Strategic Adoption: Contributing to the overall strategy for the wider adoption of Knowledge Graphs and semantic technologies across the business to solve complex data challenges. * Ensuring Digital Rigour: Implementing the configuration control and concurrency models that ensure the Digital Thread remains a reliable, authoritative source of truth at scale. What You'll Do As a Senior Software Engineer, you will be a key implementer of our digital engineering construct. You will move beyond "glue code" to build a high-abstraction layer based on semantic web principles. Semantic Implementation & Graph Engineering * Develop and maintain the software implementation of the Digital Thread using the Semantic Web stack (e.g., RDF, OWL, SPARQL). * Build and optimise the graph databases and triple stores that house the engineering relationships and enrichments. * Implement the logic that allows for the "enrichment" of data as it moves through the thread, adding semantic value and context. Adapter Development & Data Mapping * Develop tool adapters that map local data schemas to a global ontology, ensuring that tool-specific data is ingested into the graph without losing semantic meaning. * Focus on "mapping to the model" rather than "mapping to the tool," preventing the proliferation of fragile, point-to-point integrations. Concurrency & Configuration Control * Architect and implement the versioning and configuration control mechanisms for the Digital Thread graph, ensuring that changes are traceable and concurrent access is managed. * Develop software patterns that allow the graph to remain performant and consistent across a large, distributed programme. Technical Collaboration * Work closely with the Principal Systems Engineer to translate formal ontologies into performant software implementations. * Collaborate with other software engineers to ensure the Digital Thread provides the exact enablers they need to achieve quality at pace. ## Related Videos - [Stop using Node.js like in 2020! 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