Software Developer Back End

M+C Saatchi Group; Greater London; Hybrid; GBP 45,000 - 65,000; Full time

Job summary

A leading global communications firm based in London is seeking a Software Developer Back End to design scalable APIs and data systems. You will lead a small team focusing on customer-facing APIs and data ingestion pipelines while ensuring adherence to best practices in delivery and cloud infrastructure. The ideal candidate has extensive experience with Python, FastAPI, and AWS services. This full-time role offers a hybrid working environment and competitive benefits.

Benefits

27 days holiday

Pension contributions

Private healthcare

Cultural stimulation allowance

Volunteering leave

Payroll Giving Scheme

Employee engagement events

Qualifications

• Strong experience with Python and production FastAPI services.
• Proficient in SQL, including schema design and query performance tuning.
• Hands-on expertise with AWS services such as ECS, Lambda, S3, and RDS.

Responsibilities

• Design, build, and operate Python/FastAPI-based API services deployed on AWS ECS.
• Develop and optimize ETL pipelines for reliable data ingestion.
• Provide technical leadership and coordinate delivery with product and data teams.

Skills

Python

FastAPI

SQL

AWS services

ETL pipeline development

Leadership and mentoring

CI / CD practices

Tools

Docker

Airflow

dbt

Job description

We are looking for a Software Developer Back End to join one of the MC Saatchi Groups specialist divisions MC Saatchi World Services. This division partners with governments civil society foundations academia and the private sector to work on the critical issues of our time including the climate emergency national security social justice conflict prevention and sustainable development. We provide a fully integrated end to end service combining multi-discipline communications teams with subject matter experts across the world. Our work is domestic and global often affecting the most vulnerable in society with international activity orientated towards conflict affected or developing countries.

This full-time role is based in the London office on a hybrid basis.

ABOUT THE ROLE

We’re looking for a Back End Developer to design and operate scalable APIs and data systems on AWS. You’ll lead a small team of engineers delivering customer-facing APIs and robust ETL data ingestion pipelines.

Key Responsibilities

• Design build and operate Python / FastAPI-based API services deployed on AWS ECS
• Develop and optimize ETL pipelines and automation workflows for reliable data ingestion
• Own API design performance optimization security and observability
• Provide technical leadership and mentorship; coordinate delivery with product and data teams
• Ensure best practices in CI / CD infrastructure-as-code and containerized deployments

ABOUT YOU

Requirements

• Strong experience with Python and production FastAPI services
• Proficient in SQL (schema design query performance tuning)
• Familiar with data science tools such as Pandas NumPy and Jupyter
• Hands‑on expertise with AWS services : Lambda ECS S3 RDS / DynamoDB IAM
• Experience building customer-facing REST APIs and data ingestion pipelines
• Demonstrated leadership and mentoring ability in small engineering teams
• Practical experience with CI / CD Infrastructure as Code Airflow / dbt and Docker containerization

Technical Skills

• Programming & Frameworks : Python FastAPI
• Databases & SQL : Schema design query optimization RDS DynamoDB
• Data Engineering : ETL pipeline development workflow automation Airflow dbt
• Data Science Tools : Pandas NumPy Jupyter
• Cloud & Infrastructure (AWS) : ECS Lambda S3 RDS DynamoDB IAM
• DevOps & CI / CD : Infrastructure as Code (e.g. Terraform / CloudFormation) CI / CD pipelines Docker containerization
• APIs : REST API design performance optimization security observability
• Team Leadership : Technical mentoring delivery coordination with product / data partners

Applications close : Wednesday 12 November 2025. No Recruiters.

WHAT WE OFFER

A competitive salary and benefits package that includes 27 days holiday per year pension contributions private healthcare discounted dental insurance enhanced maternity / parental leave plus a whole host of others including :

• 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
• Our commitment to Diversity and Inclusion sees us offer inclusive bank holidays

We also offer learning opportunities around D&I targeted mentoring programmes and the opportunity to participate in several active Employee Led Networks and associated events. Finally this role will be supported with all the necessary personal development required to set someone up for success.

MC SAATCHI GROUP has pledged its commitment to create a company that values difference with an inclusive culture. As part of this M&C Saatchi Group continues to be an Equal Opportunity Employer which does not and shall not discriminate celebrates diversity and bases all hiring and promotion decisions solely on merit without regard for any personal characteristics.

All employee and candidate information is kept confidential according to General Data Protection Regulation (GDPR).

#LI-JM1 #WS

Key Skills

Bootstrap, CSS, Front-End Development, HTML5, React, Redux, Node.js, Angular, Less, JavaScript, backbone.js, Sass

Employment Type

Full Time

Experience

years

Vacancy

1