CTO - BeReal

BeReal; Paris; Sur place; EUR 180 000 - 260 000; Plein temps

Avantages offerts par ce poste

Swile Lunch voucher

Gymlib (100% borne by Voodoo)

Premium healthcare coverage SideCare (

Wellness activities in Paris office

Résumé du poste

BeReal, headquartered in Paris, seeks an exceptional technologist to define the next generation of BeReal's technology and lead transformations across Mobile, Backend, and Data. You will partner with senior engineers and the CEO to set principles that ensure reliability while enabling speed and scale.

You will shape AI-driven changes in coding, testing, migrations, and tooling, guiding major migrations and elevating the engineering organization’s technical bar.

Qualifications

• Exceptional technical track record.
• Architect-level depth; able to challenge excellent Staff / Principal engineers.
• Deep understanding of native mobile engineering.
• Strong Backend and distributed-systems fundamentals at consumer scale.
• Proven experience with significant legacy transformations.
• Evidence of raising the technical level of an engineering organization, not just designing systems personally.
• Strong production judgment: reliability, failure modes, performance and scale.
• Strong judgment around technical investment, prioritization and rewrite vs migration.
• Practical point of view on AI applied to software engineering.
• Experience with high-scale consumer products or comparable high-throughput systems.
• Strong product sense and excellent communication.

Responsabilités

• Define BeReal's long-term technical direction across Mobile, Backend, Data and infrastructure.
• Lead the transformation of a large native mobile application carrying significant legacy architecture.
• Set technical principles that allow teams to move quickly without degrading reliability, performance or maintainability.
• Challenge the hardest technical decisions alongside Staff-level engineers.
• Raise technical standards across the organization without centralizing every decision.
• Ensure BeReal remains reliable under highly concentrated traffic spikes from tens of millions of users.
• Guide major migrations and decide when to evolve incrementally vs rewrite.
• Define how AI transforms coding, testing, debugging, migrations, architecture and developer tooling.
• Partner with the CEO and engineering leadership on BeReal's most important technical bets.

Connaissances

Architect-level depth

Mobile engineering leadership

Backend and distributed-systems

AI for software engineering

Stakeholder collaboration

Outils

GCP

Kubernetes

Terraform

Datadog

BigQuery

Description du poste

About Voodoo

Founded in 2013, Voodoo is a tech company that creates mobile games and apps with a mission to entertain the world. Gathering 800 employees, 7 billion downloads, and over 200 million active users, Voodoo is the #3 mobile publisher worldwide in terms of downloads after Google and Meta. Our portfolio includes chart-topping games like Mob Control and Block Jam, alongside popular apps such as BeReal and Wizz.

Team

BeReal stands for authenticity in social media: one notification a day, unfiltered photos and videos, real friends. 40M+ people use BeReal every month, and they all post at the same moment. Since joining Voodoo, BeReal has returned to growth with a healthy business model and $50M in revenue this year. The opportunity is clear: people want an alternative to Instagram and TikTok. Our ambition is to make BeReal the leader in authentic social, used by hundreds of millions.

Role

We are looking for an exceptional technologist to define the next generation of BeReal's technology.

You will go deep with our strongest engineers, challenge technical decisions across Mobile and Backend, lead major transformations, raise the technical level of the organization, and define how AI changes the way BeReal engineers build software.

You report directly to BeReal's CEO.

What you'll do

• Define BeReal's long-term technical direction across Mobile, Backend, Data and infrastructure.
• Lead the transformation of a large native mobile application carrying significant legacy architecture.
• Set technical principles that allow teams to move quickly without degrading reliability, performance or maintainability.
• Challenge the hardest technical decisions alongside Staff-level engineers.
• Raise technical standards across the organization without centralizing every decision.
• Ensure BeReal remains reliable under highly concentrated traffic spikes from tens of millions of users.
• Guide major migrations and decide when to evolve incrementally vs rewrite.
• Define how AI transforms coding, testing, debugging, migrations, architecture and developer tooling.
• Partner with the CEO and engineering leadership on BeReal's most important technical bets.

Our stack

GCP, Kubernetes, Terraform, ArgoCD, Datadog, Fastly - Go (some legacy Node.js), Cloud Spanner, Redis, PostgreSQL, Pub/Sub - Swift/SwiftUI, Kotlin - BigQuery, Airflow, DBT, Amplitude

Profile

• Exceptional technical track record.
• Architect-level depth; able to challenge excellent Staff / Principal engineers.
• Deep understanding of native mobile engineering.
• Strong Backend and distributed-systems fundamentals at consumer scale.
• Proven experience with significant legacy transformations.
• Evidence of raising the technical level of an engineering organization, not just designing systems personally.
• Strong production judgment: reliability, failure modes, performance and scale.
• Strong judgment around technical investment, prioritization and rewrite vs migration.
• Practical point of view on AI applied to software engineering.
• Experience with high-scale consumer products or comparable high-throughput systems.
• Strong product sense and excellent communication.

Benefits

• Competitive salary upon experience
• Swile Lunch voucher
• Gymlib (100% borne by Voodoo)
• Premium healthcare coverage SideCare, for your family 100% borne by Voodoo
• Wellness activities in our Paris office
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