Equativ
Equativ4d ago

[FREELANCE] Back-End Engineer, Addressability

Paris,ParisContractormid
EngineeringBackend Developer
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Quick Summary

Overview

👫 About the team At Equativ, we’re on a mission to develop advertising technologies that empower our customers to reach their digital business goals. This means that we rely on massively scalable,

Technical Tools
EngineeringBackend Developer

At Equativ, we’re on a mission to develop advertising technologies that empower our customers to reach their digital business goals. This means that we rely on massively scalable, widely distributed, highly available, and efficient software systems; the platform deals with over 3 million requests per second (+250 billion/day) managed by 3,000 servers with less than 250ms response time.


Our innovation team based in Paris, Nantes, Bordeaux, Limoges, Krakow and Berlin is composed of 150+ straightforward and energetic engineers working in an Agile environment and ready to tackle the most complex technical challenges.



You will join our Addressability team distributed in multiple locations. You will be onboarded in a multi expertise feature team of back-end developers and Data Engineers, with the mission to build and query a multi billion entry Id Graph, plug third party data providers and provide customers and business teams with advanced targeting and reporting features.

Responsibilities

~1 min read

  • Ingestion of massive amounts of data high performance key value stores

  • Query user data millions of times per second with a response time of a few ms

  • Improvement of our graph by making it sharper, faster

  • Design trade offs (feature vs performance) 

  • Business support on external partners' and customers 


  • 3-4 years of seniority in high perf, low latency C# coding

  • Expertise of Aerospike or equivalent high performance KV store 

  • Experience with Event streaming (Kafka), Go, PHP, Docker, Kubernetes, Cloud platforms (ideally GCP) is a big plus

  • Able to lead design discussions and mentor others

  • Customer oriented approach: you deliver clean and usable solutions for customers (and you know that customers hate bugs!)

  • Proficient in verbal and written English

  • Passion for writing high quality and maintainable code following Software Craftsmanship or Continuous Delivery

  • Entrepreneurial spirit and know-how to identify opportunities of improvement

  • Personal projects with code sharing, we’re curious about your art!

Location & Eligibility

Where is the job
Paris
Hybrid — some on-site time required
Who can apply
Same as job location

Listing Details

Posted
April 30, 2026
First seen
April 30, 2026
Last seen
May 5, 2026

Posting Health

Days active
4
Repost count
0
Trust Level
70%
Scored at
May 4, 2026

Signal breakdown

freshnesssource trustcontent trustemployer trust
Equativ
Equativ
lever
Employees
350
Founded
2001
View company profile
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Equativ[FREELANCE] Back-End Engineer, Addressability