At Datadog, fullstack engineers build the end-to-end product experiences that power our observability platform. As a Senior Fullstack Engineer with a frontend focus, you´ll drive complex, user-facing features while contributing to the backend systems that support them. You´ll architect performant interfaces at scale, collaborating across disciplines to create seamless product experiences. This role is ideal for engineers who excel in frontend-led fullstack development and want to have deep ownership over product surfaces that impact customers directly.

At Datadog, we place value in our office culture - the relationships and collaboration it builds and the creativity it brings to the table. We operate as a hybrid workplace to ensure our Datadogs can create a work-life harmony that best fits them.

Disclaimer: This is not a strict 50/50 frontend-backend split. The exact balance varies by team, project, and product area, and may shift over time. You´ll regularly contribute across the stack, but the role is designed for engineers who prefer and excel at frontend-led fullstack work.

At Datadog, we place value in our office culture - the relationships that it builds, the creativity it brings to the table, and the collaboration of being together. We operate as a hybrid workplace to ensure our employees can create a work-life harmony that best fits them.

What You´ll Do:
- Architect, build, and ship end-to-end product features-owning everything from frontend UI to backend logic, data modeling, and API design
- Drive technical excellence for the frontend experience, including performance, accessibility, responsiveness, and overall quality
- Collaborate with product managers, designers, and backend engineers to define user experiences, data flows, and APIs
- Improve the reliability and scalability of services that support your features, contributing backend code where needed
- Lead technical discussions, influence architecture decisions, and mentor other engineers on fullstack patterns and best practices
- Ensure strong testing coverage, clear documentation, and long-term maintainability across the stack

Who You Are:
- You have 6+ years of experience building and shipping production-grade fullstack features at scale
- Deep expertise in JavaScript/TypeScript and modern frontend frameworks (React preferred)
- Solid backend engineering skills with proficiency in at least one server-side language (e.g., Python, Go, Java) and familiarity with APIs, databases, and distributed systems
- Ability to interpret broad product requirements and translate them into polished, user-facing applications
- Strong understanding of frontend architecture, state management, performance tuning, and client-server interaction patterns
- Excellent communicator with the ability to lead design and architecture discussions in a collaborative, cross-functional environment

Datadog values people from all walks of life. We understand not everyone will meet all the above qualifications on day one. That´s okay. If you´re passionate about technology and want to grow your skills, we encourage you to apply.

Benefits and Growth:
- Generous and competitive benefits package
- New hire stock equity (RSUs) and employee stock purchase plan
- Continuous career development and pathing opportunities
- Employee-focused best in class onboarding
- Internal mentor and cross-departmental buddy program
- Friendly and inclusive workplace culture

Benefits and Growth listed above may vary based on the country of your employment and the nature of your employment with Datadog.

About Datadog:

Datadog (NASDAQ: DDOG) is a global SaaS business, delivering a rare combination of growth and profitability. We are on a mission to break down silos and solve complexity in the cloud age by enabling digital transformation, cloud migration, and infrastructure monitoring of our customers´ entire technology stacks. Built by engineers, for engineers, Datadog is used by organizations of all sizes across a wide range of industries. Together, we champion professional development, diversity of thought, innovation, and work excellence to empower continuous growth. Join the pack and become part of a collaborative, pragmatic, and thoughtful people-first community where we solve tough problems, take smart risks, and celebrate one another.