What You'll Do:

Join Criteo as a Sr. Solutions Engineer on the Product Expertise team. You will apply deep technical and product expertise to complex client, partner, and internal challenges, with a strong focus on API-driven solutions, integration quality, and scalable support practices.

What You'll Do

• Provide expert technical assistance on complex product and API-related matters for clients, partners, and internal teams.
• Diagnose and resolve advanced integration, configuration, tracking, reporting, and API usage issues.
• Own high-impact investigations end to end, including reproduction, impact assessment, documentation, escalation, and resolution follow-up.
• Escalate to Product and R&D with clear context, evidence, business impact, and prioritization rationale.
• Translate business objectives into scalable technical solutions, integration approaches, and implementation guidance.
• Advise stakeholders on API best practices, including authentication, data flows, troubleshooting, monitoring, and operational readiness.
• Conduct design reviews and provide architectural guidance for complex or strategic integrations.
• Create reusable playbooks, troubleshooting frameworks, internal guides, and client-facing best practices.
• Identify recurring issues, support gaps, tooling needs, and process improvements, then help drive practical solutions.
• Partner with Product, R&D, GTM, and Operations to validate features, improve documentation, reduce support friction, and turn feedback into actionable product insights.
• Support knowledge sharing across peers through documentation, training sessions, and structured technical enablement.

Who You Are:

• Experienced technical problem-solver with 6+ years in solutions engineering, support engineering, partner engineering, implementation engineering, or a similar client-facing technical role.
• Strong API practitioner, comfortable diagnosing REST/JSON integrations, inspecting HTTP traffic, validating payloads, and troubleshooting authentication, permissions, errors, and data discrepancies.
• Proficient with Python, JavaScript, or a similar language, and comfortable using SQL for investigation and analysis.
• Skilled at translating complex technical findings into clear business-level guidance for mixed audiences.
• Experienced in incident investigation, root-cause analysis, impact assessment, and structured escalation to engineering teams.
• Able to provide practical architecture guidance and make sound technical trade-offs based on client goals, product constraints, and operational impact.
• Process-minded, with a track record of identifying inefficiencies, documenting best practices, and helping improvements scale beyond one-off cases.
• Collaborative and credible with Product, R&D, GTM, Operations, clients, and technical partners.
• Strong communicator who can produce clear documentation, decision records, implementation guidance, and executive-ready summaries.
• Curious and adaptable, with a continuous-learning mindset and the ability to quickly build expertise in evolving product areas.

We acknowledge that many candidates may not meet every single role requirement listed above. If your experience looks a little different from our requirements but you believe that you can still bring value to the role, we'd love to see your application!

What We Offer:

🏢 Ways of working - Our hybrid model blends home with in-office experiences, making space for both.
📈 Grow with us - Learning, mentorship & career development programs.
💪 Your wellbeing matters - Health benefits, wellness perks & mental health support.
🤝 A team that cares - Diverse, inclusive, and globally connected.
💸 Fair pay & perks - Attractive salary, with performance-based rewards and family-friendly policies, plus the potential for equity depending on role and level.

Additional benefits may vary depending on the country where you work and the nature of your employment with Criteo.

For employees based in the US, certain roles at Criteo are eligible for additional rewards, including quarterly or annual bonus and restricted stock units. US-based employees receive access to healthcare, dental, and vision insurance, a 401(k) plan with company match, short-term and long-term disability coverage, life insurance, family forming and wellness benefits, Flexible Work financial support, learning opportunities, and a robust annual leave plan including volunteer time off and summer vacation days.

The US base salary pay range for this position per year is:
$115,000 - $135,000