Software Engineer, Experimentation

Position Overview

• Location Type: Remote
• Job Type: Full-time
• Location: UK, Germany, or Netherlands
• Salary: Competitive compensation package, including equity.

Vercel is seeking an experienced engineer to join their Experimentation team. This role focuses on building and scaling the systems that power reliable, high-performance feature flagging globally. You will work with JavaScript/TypeScript, Node.js, and cloud-native databases to develop innovative solutions for the experimentation platform, including the Flags SDK and its providers. Your work will directly impact customers by enabling data-driven decisions through enriched insights, helping them understand feature performance, trends, and system health with minimal latency. This is an opportunity to reimagine experimentation infrastructure from the ground up, challenging conventional approaches and rethinking existing solutions.

Requirements

• 3+ years of experience building and scaling feature flag and experimentation systems in production environments.
• Proficiency in TypeScript/JavaScript and Node.js with a track record of building high-performance distributed systems.
• Strong understanding of experimentation methodologies, A/B testing, and statistical analysis for feature validation.
• Experience with SQL and NoSQL databases, data pipelines, and real-time data processing at scale.
• Deep understanding of SDK design principles and experience building developer-friendly client libraries.
• Familiarity with observability practices and integrating telemetry data across distributed systems.
• Proven ability to challenge existing solutions and propose innovative approaches to complex technical problems.
• Excellent problem-solving abilities and effective communication skills, especially when collaborating with diverse teams.

Responsibilities

• Enable customers to measure experiment impact by surfacing feature flags and experimentation as first-class citizens across the Vercel platform.
• Design and implement deep platform integrations to surface feature flag data across our entire ecosystem.
• Build and evolve our Flags SDK and partner integrations to deliver lightning-fast feature flag resolution at scale.
• Rethink traditional approaches to feature flagging and experimentation, proposing innovative solutions that push industry boundaries.
• Collaborate with cross-functional teams to deliver large-scale experimentation features with cross-team dependencies.
• Develop APIs and data pipelines that process billions of flag evaluations while maintaining low latency.
• Maintain and operate services at high scale, participating in scheduled on-call rotations to ensure reliability.

Benefits

• Competitive compensation package, including equity.
• Inclusive Healthcare Package.
• Learn and Grow - mentorship and support for attending events to build networks and skills.
• Flexible Time Off.
• Provision of necessary work gear and a WFH budget for setting up your workspace.

About Vercel

Vercel provides developers with the tools and cloud infrastructure to build, scale, and secure a faster, more personalized web. As the team behind v0, Next.js, and AI SDK, Vercel empowers customers like Ramp, Supreme, PayPal, and Under Armour to build for the AI-native web. Their mission is to enable the world to ship the best products by creating an environment where everyone can do their best work.

Company Culture

Vercel is committed to fostering and empowering an inclusive community. They do not discriminate on the basis of race, religion, color, gender expression or identity, sexual orientation, national origin, citizenship, age, marital status, veteran status, or disability status.