Role Overview

Datadog, the leading monitoring and security platform for cloud applications, is hiring a Senior Software Engineer (Frontend) in Lisbon, Portugal. Join our Product Engineering teams to build the interfaces that hundreds of thousands of customers rely on daily for real-time observability, monitoring, and troubleshooting. As a Senior Frontend Engineer, you'll lead the development of complex UI features across core products like Digital Experience Monitoring, Real User Monitoring (RUM), Error Tracking, and Synthetic Monitoring. This hybrid role in Lisbon offers high ownership, architectural influence, and mentorship opportunities in a growth-oriented environment. Work at scale on tools that power cloud migration, digital transformation, and infrastructure monitoring for the world's top companies.

Datadog's frontend teams focus on delivering proactive insights into user behavior, grouping application errors, and automating app/API tests to catch issues before they impact users. Explore our Digital Experience Monitoring suite to see the impact of your work. If you have 6+ years in production-grade frontend development with React/TypeScript, this is your chance to shape user experiences at a global SaaS leader (NASDAQ: DDOG).

Key Responsibilities at Datadog

• Design, build, and deliver scalable frontend features for Datadog’s core observability products used by millions.
• Collaborate cross-functionally with product managers, designers, and backend engineers to define UX, data flows, and APIs.
• Lead technical discussions and drive long-term architectural decisions for high-performance frontend systems.
• Optimize performance, reliability, and accessibility of user-facing applications handling massive real-time data.
• Set high standards for code quality, comprehensive testing, and maintainability across engineering teams.
• Mentor junior engineers and promote best practices in frontend engineering organization-wide.
• Own end-to-end delivery of major UI features from concept to launch with minimal supervision.
• Influence product direction through user-centric design and deep observability expertise.
• Continuously improve browser fundamentals, performance metrics, and scalability for cloud-native apps.

Qualifications & Requirements

• 6+ years building production-grade frontend applications at scale with real-world impact.
• Deep expertise in JavaScript/TypeScript and modern frameworks like React.
• Strong knowledge of frontend architecture, performance optimization, and browser fundamentals.
• Proven ability to take major features from concept to launch independently.
• Excellent communicator who influences technical direction and collaborates effectively.
• Passion for user experience, UI quality, detail-oriented design, and accessibility standards.

Datadog values diverse backgrounds. If you're passionate about technology and observability, apply even if you don't meet every qualification—we prioritize growth potential.

Salary & Benefits

Earn a competitive salary for Senior Frontend Engineers in Lisbon, plus Datadog's market-leading perks. Our hybrid model supports work-life harmony with Lisbon office culture fostering collaboration and creativity.

• Generous competitive benefits package (varies by country).
• New hire stock equity (RSUs) and employee stock purchase plan.
• Continuous career development and pathing opportunities.
• Best-in-class onboarding with internal mentors and buddy programs.
• Inclusive workplace culture emphasizing relationships and innovation.
• Comprehensive health insurance for family.
• Professional development stipends and fitness reimbursements.
• Commuter benefits and hybrid flexibility.

Why Join Datadog?

Datadog (NASDAQ: DDOG) is a global SaaS powerhouse combining explosive growth and profitability. We're breaking down silos in the cloud age, enabling digital transformation for enterprises worldwide. In Lisbon, you'll thrive in a hybrid environment with top-tier tools, equity upside, and a mission-driven team. Build products like RUM for frontend performance insights, Error Tracking for app stability, and Synthetic Monitoring for proactive issue detection. Influence observability at scale, mentor peers, and grow your career in DevOps, cloud monitoring, and modern frontend engineering. Datadog's office culture sparks creativity—join us to create work-life harmony while solving real-world complexity.

How to Apply

Ready to lead frontend innovation at Datadog? Apply now for the Senior Software Engineer (Frontend) role in Lisbon. Submit your resume highlighting React/TypeScript experience and observability projects. We're moving fast—don't miss your chance to join a profitable NASDAQ leader. Datadog is an equal opportunity employer committed to diversity.