We believe people should not care about privacy. Not because it doesn't matter, but because it shouldn't be an issue!
From data breaches and surveillance of cloud applications, to blockchain smart contracts where everything is public, doing things privately online is becoming increasingly complicated. The only way to solve this is to make everything encrypted end-to-end, regardless of where the application is running. And the only way this can happen is if homomorphic encryption becomes mainstream.
We are a remote-friendly company with headquarters in the centre of Paris.
We believe people should not care about privacy. Not because it doesn't matter, but because it shouldn't be an issue!
From data breaches and surveillance of cloud applications, to blockchain smart contracts where everything is public, doing things privately online is becoming increasingly complicated. The only way to solve this is to make everything encrypted end-to-end, regardless of where the application is running. And the only way this can happen is if homomorphic encryption becomes mainstream.
We are a remote-friendly company with headquarters in the centre of Paris.
Core tech: Fully Homomorphic Encryption (FHE) for encrypted computation
Primary product: Confidential blockchain protocol (fhEVM) and FHE developer libraries
Founded: 2020
Headcount (approx.): 166 employees
Total funding reported: USD 182,300,000
Company Overview
Problem Domain
Privacy-preserving computation; encrypted computation for blockchain and AI/ML
Founded
2020
Industry
Software Development
Tech Stack
TFHE-rs
Concrete
Concrete ML
fhEVM / confidential blockchain protocol
Funding Track Record
Series A- March 2024
Reported as a March 2024 round
Series B- June 25, 2025
Latest round reported
Investor Signal
“Pantera Capital, Blockchange Ventures, Multicoin Capital, Protocol Labs, GSR and participation from protocol founders/angels reported”
Founders
What we do
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Join the Team
Senior QA Engineer
On-SiteRue du Sentier, 75002 Paris, France, FR
On-Site • Rue du Sentier, 75002 Paris, France, FR
About the Role
Zama is a leader in privacy-preserving cryptography. Our Blockchain division builds the secure infrastructure and SDKs that empower developers to build private applications.
As a Senior QA Engineer, you will be the guardian of reliability. You won’t just find bugs; you will build the automated infrastructure that ensures our cryptographic primitives and blockchain services work flawlessly in the real world.
What You Will Do
Teeming tracks opportunities at over 24,000 AI startups, then works with you to find (and land) the one you'll love.
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Build the Foundation: Design and maintain the end-to-end test platform, including deterministic environments and mocks for SDKs and APIs.
Automate Everything: Create and integrate automated tests (Python/Bash) into our CI/CD pipelines (GitHub Actions) to ensure production readiness.
Ensure Resilience: Beyond standard testing, you will conduct performance, stress, and chaos testing to see how our systems behave under pressure.
Root Cause Analysis: Investigate failures deeply, diagnose the “why,” and work with developers to fix issues and reduce test flakiness.
Set the Standard: Define QA processes and templates that help the entire engineering team maintain high-quality unit and integration tests.- Experience: 5+ years in QA for distributed or multi-service systems.
Scripting: Strong scripting skills in Python and Bash within Linux environments.
Languages: Familiarity with Rust and TypeScript/JavaScript to work with our test frameworks and tooling.
Infrastructure: Hands-on experience with Docker/Kubernetes, CI/CD pipelines, and databases (PostgreSQL, Redis).
Observability: Experience using tools like Grafana, Prometheus, or OpenTelemetry to diagnose system health.
Mindset: You enjoy “breaking things” to make them stronger and have a developer-centric approach to quality.
Bonus Points
Experience with K6 or similar load-testing frameworks.
A background in software development.
Previous experience in blockchain or cryptography.📋 Step 1: The Application Form
Start your journey by filling out our application form. This is your chance to introduce yourself and showcase your unique skills and experiences.
🏆 Step 2: The Challenge
Next up, tackle our challenge! This is where you can shine and show us how you approach and solve real-world problems.
💼 Step 3: The Technical Interview
Dive deep into your technical knowledge with our team. This is your opportunity to demonstrate your expertise and passion for the field.
🤝 Step 4: Cultural Fit & Compensation Chat
Meet with our COO to discuss our company culture and explore how you can thrive with us. We’ll also discuss compensation to ensure we’re on the same page.
🛠️ Step 5: The Hacking Trial
Put your skills to the test in a real-world hacking scenario. This trial helps us see your practical skills in action and how you handle challenges.
🔍 Step 6: The Reference Check & Offer
As a final step, we’ll conduct a reference check to confirm your qualifications and past experiences. If all goes well, you will get an offer soon.
We provide more details on our process here. Exceptional candidates will hear from us as we advance through the recruitment process.
Zama values and promotes diversity. We give everyone a fair chance to be evaluated on their professional, academic, and personal skills. Our goal is to make the hiring process as pleasant, stress-free, and friendly as possible, even if it is longer and more involved than you might find elsewhere.
