Responsibilities

• Build and ship experiments that hold up, developing experiments across the full complexity spectrum and owning delivery to hit targets.
• Partner directly with clients to identify experimentation challenges, design tailored technical solutions, and communicate value clearly.
• Level up the practice by mentoring colleagues, documenting repeatable solutions, running sales feasibility studies, and staying current on CRO platforms.

Requirements

• Senior-level proficiency with HTML, SCSS, and JavaScript, including hands-on experience building experiments inside Single Page Applications (React, Vue, Angular, or similar).
• Production experience shipping experiments on one or more leading web experimentation platforms (e.g., Optimizely, VWO, Convert, AB Tasty, LaunchDarkly, Kameleoon, or equivalent).
• Fluent command of the command line, Git, and version control workflows in a collaborative team environment.
• A proven ability to accurately estimate complexity, assess feasibility, and communicate trade-offs, escalating and resetting expectations early as new information emerges.
• A track record of reviewing other engineers’ work and raising quality without slowing teams down.
• Comfort working directly with clients or external stakeholders, owning a technical conversation, not just supporting one.
• Experience mentoring engineers more junior than you, formally or informally, on both technical skills and client communication.
• A learning-agile mindset to pick up new frameworks, platforms, or codebases quickly.
• Interest in progressing toward leadership, people management, or deeper service specialization.
• Background at a consultancy, agency, or in-house CRO / experimentation program at an enterprise brand.

Nice to have

• Experience running pre-sales / feasibility work and producing client-facing technical deliverables.
• Familiarity with analytics and data layer tooling (e.g., Segment, GTM, GA4) as it intersects with experiment instrumentation.
• A portfolio of reusable patterns, libraries, or internal docs you’ve authored and driven adoption of.

Benefits

• Remote-first: Fully remote for employees based in eligible U.S. states.
• Generous time off: 4 weeks of PTO to start, increasing to 5 weeks after 3 years, plus 9 paid holidays and up to 5 days of paid bereavement.
• Health & wellness: Group healthcare coverage, disability and basic life insurance, pre-tax savings accounts, and wellness programs.
• 401(k): Automatic enrollment after 3 months with 100% match up to 4% of salary.
• Leave: Parental and medical leave plans tailored to your situation.
• Connection: Annual company-funded All Hands Trip, active Slack culture, and a real commitment to feedback and transparency.
• Growth: Individualized Career Plan and access to education reimbursement after one year.