Senior/Lead Backend Engineer (Data and Algorithms)

Our UK-based customer is building a new multi-tenant platform for asset management – a complex, interconnected system designed to unify disparate data sources and ontologies into a single, collaborative environment.
The platform requires advanced interoperability between different domains, offline-first functionality with data synchronization, and scalable architecture to support multiple clients and access levels.

This is a long-term project (6–12 months minimum), where you will have the opportunity to shape architecture, solve challenging data problems, and work alongside a highly collaborative team in an agile environment.

Responsibilities

• Design and develop core system components, including:
  • multi-tenant data management and synchronization,
  • interoperability across heterogeneous systems,
  • rule evaluation and advanced data processing.
• Contribute to architectural decisions and implementation of shared libraries.
• Implement offline-first capabilities and data sync mechanisms.
• Collaborate with product owners, architects, and other developers in an agile setup (daily standups, task boards, CI/CD).
• Ensure scalability, reliability, and maintainability of the system.

• Stay adaptable and contribute across the stack as needed.

   

Required Skills & Experience

Core skills and knowledge: 

• TypeScript
• AWS Lambda, EC2
• Computer Science & Advanced Knowledge:
• Strong foundations in algorithms and data structures.
• Set Theory & Categorization Theory – frameworks for organizing and classifying data.
• Formal methods – use of mathematical models and logic in software verification.
• Exposure to meta programming, compiler theory, abstract syntax trees/graphs, semantic graphs, knowledge graphs.
• Basic understanding of ML concepts (e.g., loss functions, optimization).

To know or strong desire and ability to learn: 

• Gherkin (optional)
• AWS Neptune (optional)

• Gremlin (optional)

   

Communication

• English proficiency: B2+ (comfortable in technical discussions, daily standups, and documentation).

   

Nice to Have

• Experience with graph databases or ontology-driven systems.
• Building Progressive Web Applications (PWA).
• Hands-on knowledge of large-scale, multi-tenant architectures.

What We Offer

• A chance to work on an innovative project from the ground up.
• Remote-first, flexible work environment.
• Initial contract of 6+ months, with potential extension.
• Collaborative, international team culture.