Senior Backend Developer - Architecture, Data Modelling

Hays plc
London, United Kingdom
6 days ago
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Role details

Contract type
Temporary contract
Employment type
Part-time / full-time
Experience level
Expert
Compensation
£208,000 - £234,000
Working hours
Regular working hours

Tech stack

JavaScript (Programming Language) Databases Data Structures Relational Databases Node.Js Query Optimization SQL Stored Procedures SQL Databases TypeScript Web Applications Enterprise Software Applications Snowflake
+6 more
Backend Containerization Low Latency Front End Software Development Asynchronous Programming Api Design

Job description

My client is a global financial services organisation who are hiring an experienced Senior Backend Engineer with strong Architecture and Data modelling skills. The role will focus on making complex enterprise applications faster, simpler and more reliable. This is a backend-focused role, with some frontend capability to deliver changes.

Requirements

  • Senior backend engineering experience. A track record of building and operating enterprise-scale web applications, with substantial hands-on responsibility rather than purely architectural oversight.
  • Strong backend and database skills. Production experience with TypeScript/JavaScript and Node.js, API design, asynchronous programming, SQL and relational data modelling.
  • Evidence of performance improvement. Practical experience profiling applications, diagnosing bottlenecks and reducing end-to-end latency, with before-and-after measurements.
  • Architecture and data-model simplification. Examples of reducing complexity in an existing system, recognising redundant data structures and delivering safe, incremental refactoring or migration.
  • Financial services or banking experience required
  • Full Stack developers are also considered

Nice to have: Snowflake query optimisation and stored procedures; Snowpark Container Services or comparable container platforms; AG Grid and TanStack Query; workforce, finance or other sensitive enterprise-data applications; approval and audit workflows. Experience with every component of our stack is not essential.

If the above is a good fit, please click ‘apply now’ to forward an up-to-date copy of your CV, or call us now.

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