Senior Data Collect Engineer

About Kolsquare
Kolsquare is the #1 Influencer Marketing software solution in Europe
, used by marketing professionals for managing KOL Marketing campaigns (K.O.L for Key Opinion Leaders, aka Influencers), and designed to optimize brand communication strategies in response to new digital challenges.

Using our technology, professionals can identify the best KOL profiles, fully manage their KOL Marketing campaigns and measure their results and performances.

Kolsquare offers hundreds of customers (Coca-Cola, Danone, Publicis, Orange, Sézane, Decathlon, etc.) the latest Big Data, AI and Machine Learning technologies to activate inspiring and genuine partnerships with over 3M KOLs (Key Opinion Leaders) with more than 5,000 followers in 180 countries on Instagram, TikTok, Twitter (now X), Facebook, Snap and YouTube.

In 2024, Kolsquare joined the group, one of the largest private tech companies in Europe, with a culture of innovation and excellence, to further fuel its impressive track record of outstanding profitable growth.

KOLSQUARE MISSION

Kolsquare is a Benefit Company
,
certified B-Corp
in 2024.

Kolsquare exists to help you reach your greatest potential. And positively impact the world.

Influencer Marketing is today described as a revolution, a 30B$ market that is a major transformation in the media and digital world. It has also become a real gold mine, creating high hopes but also bringing its share of myths and legends. Everyone knows it works and can have an amazing impact on brand awareness or customer acquisition, but not everyone knows exactly how to do it. At Kolsquare, we firmly believe in this new media and are convinced that it's the best way for ideas, people and organisations to grow and reach their greatest potential. We also believe that it's a great way to create positive impacts for a better world. Our mission is therefore to give everyone access to the power of KOL Marketing.

KOLSQUARE CULTURE & VALUES

• Deliver WOW
• Be Responsible in your actions
• Pursue Growth & Learning
• Be passionate and determined
• Share your Power, Knowledge & Wealth
• Build Authentic relationships

We cultivate a culture of inclusion for all employees that respects their individual strengths, views, and experiences. We believe that our differences enable us to be a better team – one that makes better decisions, drives innovation, and delivers better business results.

More info about culture here in our Culture Boo

YOUR ROLE

DATA is the nerve center of Kolsquare

As a Senior Data Collect Engineer you will join the
*Tech team
and
be actively involved in the design, development and maintenance of our high-performance, scalable collect systems.*

• Data Engineering (60-70%)
• Develop, maintain and optimize large-scale data collection functionalities in Java,
• Implement and maintain high-performance pipelines capable of handling millions of data points daily,
• Identify, analyse and adapt to website and API changes to ensure the continuity and reliability of daily data collection,
• Collaborate with the back-end and the product teams to guarantee seamless system integration,
• Provide clear and comprehensive technical documentation for developed solutions.
• Scraping (10-20%)
• Detect website structural changes, anti-scraping patterns and blockers, and implement strategies to adjust crawlers accordingly,
• Contribute to improving scraping methods and tools to increase reliability, bypass obstacles, and reduce maintenance overhead.
• Infrastructure / Ops (10-20%)
• Configure, maintain and optimize the Puma application server to ensure high availability and optimal performance,
• Administrate the technical ecosystem required for Java developments,
• Participate in performance management and resolving complex technical incidents.

PROGRAMMING LANGUAGE &
TOOLS

• Java 11/21
• MySQL
• Elasticsearch
• Pub/Sub queuing
• Notion (documentation & processes)
• Slack
• Google Workspace

YOUR PROFIL

Must-haves

• A strong experience in a data collect engineer position - at least 5 years' experience, ideally in fast-paced scale-ups or SaaS/tech environments.
• A strong expertise in Java 11+ and the Java eco system: springboot, maven, jenkins, nexus.
• Comfortable in English Kolsquare is an international company.
• MySQL skills and analytical skills for big data performance.
• Knowledge of versioning tools (Git), on http protocol, Elasticsearch, and cloud providers.
• You want to join an adventure more than a job Kolsquare is a benefit company, with a general interest ambition that goes beyond our profitability goals: positively impact the world.

Nice-to-haves

• Appetite for reverse engineering.
• You are curious and want to learn, improve and gain responsibility.
• Experience leading a team.

WHAT WE OFFER?

• You can be based anywhere in Europe.
• Full flexibility: full remote work with European hubs and 400+ coworking spaces worldwide.
• Monthly and quarterly highlights in person to get together with other Kolsquarians for great team-building events.
• A package linked to the market that will not be based on your location.
• The stability and resources of a profitable group, with the agility of a scale-up.
• Continuous training opportunities and career development support.

THE RECRUITMENT PROCESS

• Intro call with our VP HR (Transition)
• Technical & Fit Interview with Gaël, Head Of Data Collect
• Coaching interview with Julia, external coach
• Meet & Greet with Fabien, CTO
• Final interview with Quentin, our CEO
• Reference checks

Kolsquare is Europe's leading Influencer Marketing platform, a data-driven solution that allows brands to scale their KOL Marketing strategies and implement authentic partnerships with KOLs (Key Opinion Leaders).

Kolsquare's technology enables marketing professionals to easily identify the best Content Creators' profiles by filtering their content and audience, and to build and manage their campaigns from A to Z, including measuring results and benchmarking performance against competitors.

Kolsquare has built a thriving global community of influencer marketing experts, and offers hundreds of customers (Coca-Cola, Netflix, Sony Music, Publicis, Sézane, Sephora,, Lush, Hermès…) the latest Big Data, AI and Machine Learning technologies to drive inspiring partnerships, tapping into an exhaustive network of KOLs with more than 5,000 followers in 180 countries on Instagram, TikTok, X (Twitter), Facebook, YouTube and SnapChat.

As a Certified B Corporation, Kolsquare has been pioneering Responsible Influence by championing transparency, ethical practices, and meaningful collaborations to inspire change.

Since October 2024, Kolsquare forms part of Team.Blue, a leading digital enabler for businesses and entrepreneurs across Europe made up of over 60 successful brands in the fields of web hosting, domains, e-commerce, online compliance, lead generation, application solutions, and social media.