M&C Saatchi Group

Backend Engineer – Databases, APIs

M&C Saatchi Group

full-time

Posted on:

Location Type: Hybrid

Location: London • United Kingdom

Visit company website

Explore more

✨ AI Apply
Apply

Tech Stack

AWSETLMongoDBPostgresPythonRedisSQL

About the role

  • Design and implement database schemas optimised for time-series, geospatial, multimedia, and relational data.
  • Build robust data-integration pipelines that ingest from multiple third-party APIs, handling inconsistencies, failures, and schema changes.
  • Develop and optimise API endpoints using Python and FastAPI to serve data efficiently and reliably at scale.
  • Implement caching strategies, materialised views, and denormalisation patterns to maintain responsive query performance.
  • Design coherent data models that reconcile disparate data sources into a unified internal schema.
  • Manage core database operations including migrations, indexing strategies, query optimisation, and performance monitoring.
  • Build resilient ETL processes with strong error handling, retry logic, and validation mechanisms.
  • Deploy and maintain data infrastructure on AWS, including RDS, Redis, S3, and MongoDB where required.

Requirements

  • 3–5 years’ experience in backend development with a strong focus on databases.
  • Deep expertise in PostgreSQL, including schema design, indexing, query optimisation, and stored procedures.
  • Strong proficiency in Python, with hands-on experience using FastAPI or similar frameworks.
  • Experience designing data models for complex, multi-source systems.
  • Hands-on experience building large-scale integrations with third-party APIs.
  • Solid understanding of data consistency, transactions, and failure-handling patterns.
  • Experience with AWS data services (RDS, S3, MongoDB, Redis).
  • Strong SQL skills and the ability to write efficient queries on large datasets.
  • Familiarity with AI-assisted development tools (e.g., Claude Code, GitHub Copilot).
Benefits
  • 27 days holiday per year
  • Pension contributions
  • Private healthcare
  • Discounted dental insurance
  • Enhanced maternity/parental leave
  • Cultural stimulation allowance - £250 per person per year
  • Half days off before bank holidays
  • Emergency care days for dependants
  • Up to 5 days volunteering leave per year to work for a registered charity
  • Up to 10 days special emergency leave per year
  • Season Ticket loan
  • Payroll Giving Scheme
  • Thursday drinks to unwind and socialize
  • An annual Summer and Christmas party
  • Commitment to Diversity and Inclusion with inclusive bank holidays
  • Learning opportunities around D&I, targeted mentoring programmes and participation in active Employee Led Networks and associated events.
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
database schema designdata integration pipelinesAPI developmentPythonFastAPIcaching strategiesETL processesPostgreSQLSQLdata modeling
Soft Skills
problem-solvingattention to detailcommunicationcollaborationadaptability