Senior Python Developer

GroupM; London; On-site; GBP 70,000 - 100,000; Full time

Job summary

GroupM is seeking a Senior Engineer to develop data-oriented solutions for their AdTech platform in London. This role involves close collaboration with product and data teams, focusing on building scalable data infrastructures and contributing to product strategy. The ideal candidate will have experience in high-volume data environments and a passion for mentoring junior engineers, all while working in a dynamic, innovative culture that values growth and collaboration.

Benefits

Competitive medical insurance

Group retirement plans

Paid time off

Preferential partner discounts

Employee mental health awareness days

Qualifications

• Proven experience designing and building high-volume data-oriented solutions.
• Strong experience with Python programming and data pipelines in cloud environments.
• Ability to mentor junior engineers and support product strategy development.

Responsibilities

• Design and build scalable, reliable data solutions for the AdTech platform.
• Support data science teams with access to data and code reviews.
• Contribute to ongoing improvements in engineering practices and tooling.

Skills

Python

Data Engineering

SQL

Kafka

Snowflake

BigQuery

Data Pipeline Development

Cloud Platforms (AWS, GCP)

CI/CD

Functional Programming

Education

Experience in Data-oriented Solutions

Experience in AdTech

Experience with SaaS Product Engineering

Experience supporting ML/AI

Tools

Airflow

Redis

Spark

AWS Athena

Job description

About WPP Media

WPP is the creative transformation company. We use the power of creativity to build better futures for our people, planet, clients and communities. For more information, visit wpp.com.

WPP Media is WPPu2019s global media collective. In a world where media is everywhere and in everything, we bring the best platform, people, and partners together to create limitless opportunities for growth. For more information, visit wppmedia.com

About Choreograph : A Leading WPP Media Brand

Choreograph is WPPu2019s global data products and technology company. Weu2019re on a mission to transform marketing by building the fastest, most connected data platform that bridges marketing strategy to scaled activation.

We work with agencies and clients to transform the value of data by bringing together technology, data and analytics capabilities. We deliver this through the Open Media Studio, an AI-enabled media and data platform for the next era of advertising.

Weu2019re endlessly curious. Our team of thinkers, builders, creators and problem solvers are over 1,000 strong, across 20 markets around the world.

Role Summary and Impact

Our team consists of 100+ engineers, designers, data, and product people, working in small inter-disciplinary teams closely with creative agencies, media agencies, and with our customers, to develop and scale our DCO platform, a leading digital advertising optimization suite that delivers amazing outcomes for brands and audiences. u00A0 u00A0 u00A0

u00A0 As a Senior Engineer you will work side by side with a Product Manager, a Design Lead, and your engineering team to design, build, deliver and operate purposeful solutions. The role is a hands on development role, involving contributing to product strategy, crafting scalable and reliable architectures, developing features, building automations, owning tests, coaching and supporting junior engineers, and contributing to the wider teamu2019s evolution of our principles and practices, and the tools we use. The role has no line management responsibilities. u00A0 u00A0 u00A0

Our platforms are built with Clojure, employ a polylith architecture, are deployed using CI/CD, heavily exploit automation, and run on AWS, GCP, k8s, Snowflake and more. We serve 9 petabytes and 77 billion objects annually, which amounts to 20 billion ad impressions across the globe. Youu2019ll play a leading role in significantly scaling this further. u00A0 u00A0

u00A0 WHAT YOU WILL DO u00A0

• • Work with product, product engineering, data engineering, and data science peers to build and support our AdTech platform.u00A0
  • Architect and build data-oriented solutions that are simple, scalable, reliable, secure, maintainable, and make a measurable impact.u00A0
  • Provide our teams with the data they need to build, sell, and manage our platform. Develop, deliver and maintain batch and real-time data pipelines, analysis services, workflows and orchestrations, and create and manage the platforms and data infrastructure that hold, secure, cleanse and validate, govern, and manage our data.u00A0u00A0
  • Manage our data platform, incorporating services using Airflow/Composer, BigQuery, Snowflake, Kafka, and Redis running on Kubernetes, GCP, and AWS.u00A0
  • Support our Data Science teams with access to data, performing code reviews, aiding model evaluation and testing, deploying models, and supporting their execution.u00A0
  • Employ modern pragmatic engineering principles, practices, and tooling, including TDD/BDD/ATDD, XP, QA Engineering, Trunk Based Development, Continuous Delivery, automation, DevSecOps, and Site Reliability Engineering.u00A0
  • Contribute to driving ongoing improvements to our engineering principles, practices, and tooling. Provide support & mentorship to junior engineers.u00A0u00A0u00A0
  • Develop and maintain a contemporary understanding of AdTech developments, industry standards, partner and competitor platform developments, and commercial models, from an engineering perspective.u00A0u00A0

u00A0 Skills and Experience

At WPP Media , we believe in the power of our culture and our people. Itu2019s what elevates us to deliver exceptional experiences for both our clients and each other. In this role it will be critical to embrace WPP & WPP Media u2019s shared core value s:

• Be Extraordinary by Leading Collectively to Inspire transformational Creativity.
• Create an Open environment by Balancing People and Client Experiences by Cultivating Trust .
• Lead Optimistically by Championing Growth and Development to Mobilize the Enterprise .

u00A0

• • Proven experience designing, building, and operating data-oriented solutions in a high volume, transactional, global, industry. Experience with advertising technology (AdTech) highly desired.u00A0u00A0
  • Proven experience and a passion for developing and operating data-oriented solutions using Python, Airflow/Composer, Kafka, Snowflake, BigQuery, and a mix of data platforms such as Spark, AWS Athena, Postgres and Redis. Excellent SQL development, query optimization and data pipeline development skills required. Strong experience using public cloud platforms including AWS and GCP is required; experience with docker and Kubernetes strongly preferred. Experience in the use of multiple programming languages is highly desirable. Experience using Functional programming is ideal.u00A0u00A0
  • Proven experience in developing data structures and algorithms. Experience supporting ML/AI highly desirable.u00A0
  • Proven experience contributing to product strategy development with Product Management teams. Experience in SaaS product engineering and operations highly desirable.u00A0
  • Proven experience in data engineering and testing practices and implementing these in teams, with a willingness to share, partner and coach engineers, product people, and operations through pragmatic and effective development and delivery practices.u00A0
  • Proven experience shaping and evolving the principles, practices, and tooling supporting agile, testing/QA, DevSecOps, automation and SRE in a data-focussed team. Experience in Trunk Based Development, XP, & implementing CI/CD as used in data teams is highly desirable.u00A0u00A0
  • A focus on continuous learning and improving, both technically and professionally, in your industry, for you and your teams.u00A0
  • Demonstrated resilience, with experience working in ambiguous situations.u00A0
  • Strong English, excellent influencing and communication skills, and excellent documentation skills.u00A0u00A0

Life at WPP Media & Benefits

Our passion for shaping the next era of media includes investing in our employees to help them do their best work, and weu2019re just as committed to employee growth as we are to responsible media investment. WPP Media employees can tap into the global WPP Media & WPP networks to pursue their passions, grow their networks, and learn at the cutting edge of marketing and advertising. We have a variety of employee resource groups and host frequent in-office events showcasing team wins, sharing thought leadership, and celebrating holidays and milestone events. Our benefits include competitive medical, group retirement plans, vision, and dental insurance, significant paid time off, preferential partner discounts, and employee mental health awareness days. u00A0 u00A0

WPP Media is an equal opportunity employer and considers applicants for all positions without discrimination or regard to particular characteristics. We are committed to fostering a culture of respect in which everyone feels they belong and has the same opportunities to progress in their careers.

We believe the best work happens when we're together, fostering creativity, collaboration, and connection. That's why weu2019ve adopted a hybrid approach, with teams in the office around four days a week. If you require accommodations or flexibility, please discuss this with the hiring team during the interview process.

Please read our Privacy Notice ( https://www.wppmedia.com/pages/privacy-policy ) for more information on how we process the information you provide.

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While we appreciate all applications received, only those candidates selected for an interview will be contacted. u00A0 #LI promoted