Senior Software Engineer, Clerk
Growth
+ Equity
Authentication and user management
Job no longer available
Authentication and user management
201-500 employees
Job no longer available
+ Equity
201-500 employees
Company mission
To solve user management once and for all.
Role
Who you are
- Five+ years hands-on software engineering
- 1–2+ years running growth experiments in PLG/SaaS (dev tools experience is ideal)
- Full-stack fluency with professional experience in JavaScript/TypeScript (Next.js) and Go, plus strong SQL
- Confident with your data. You can define events, query BigQuery, and analyze in PostHog and Hex (or something similar)
- You ship unblocked, communicate clearly, and close the loop
- You’re driven to understand the “why” behind everything and can focus that intense curiosity into action
- You’re user-focused and all about open collaboration. You should be comfortable talking to developers and sharing dashboards, PRs, and read-outs
- Excited to embrace and leverage LLM-based tools to drive engineering work
- You should be based in North America or Western Europe time zones. Core hours are your regular workday in your timezone
Desirable
- Evidence of sustained experiment velocity (e.g., ~3+ valid experiments/month over multiple quarters)
- Experience working on SDKs or developer onboarding flows
- Progressive delivery/feature-flag best practices; basic experiment design/stats literacy
What the job involves
- As a Growth Engineer, you’ll help developers succeed faster with Clerk by shipping measurable improvements across our growth surfaces—SDK, docs/quickstart, dashboard onboarding, backend, and email
- You’ll move quickly and learn in public with a team that cares about craft and outcomes
- Ship experiments across any surface (Clerk SDKs, docs/quickstart, dashboard, backend, email/CRM)
- Collaborate across engineering, design, product, and marketing to improve developer’s experiences using Clerk
- Operate across the full stack: Next.js + JavaScript/TypeScript (including our JS SDK), Go services backed by Postgres; BigQuery and PostHog for analysis and flags
- Establish clear hypothesis and success metrics for every experiment; instrument, launch behind flags, monitor, and share read-outs
Our take
Authentication is only part of the story when it comes to user management. Developers using API tools also face the complex UI and management issues of additional features like user sign-up, sign-in, and session management, to name a few. Clerk was founded to make this simpler, reducing hours of work to minutes using pre-built React components.
Clerk stands out in a market dominated by the likes of Auth0 and OneSpan with its focus on React rather than API. This taps into a growing number of developers working with Jamstack rather than trying to wrestle customers away from market incumbents - a smart move which has seen its userbase swell by five times, growing to over a million developers.
This rapid growth has attracted investors, and Clerk closed a Series B round in 2024. This funding is being used to expand the company's services into authorisation - determining a user's permissions as opposed to simply identifying them. As account security and management will continue to be a major focus for developers going forward, Clerk is well positioned to grow into a major player in this space, especially as it continues to expand its product range.
Steph
Company Specialist at Welcome to the Jungle
Company
Funding (last 2 of 7 rounds)
Oct 2025
$50m
SERIES C
Jan 2024
$30m
SERIES B
Total funding: $109m
Company benefits
- Competitive salary: We want you to know that we value the skills you bring to the table, so we go out of our way to make sure you’re fairly compensated.
- Equity ownership: At Clerk, we believe in shared success, which is why we offer a stock option plan that everyone stands to benefit from as we grow.
- Health coverage: We care about your well-being, so we offer top-tier health insurance to ensure your health needs are met. (US-based employees)
- Work equipment: We’ll make sure you have everything you need to set up your ideal home office with the gear of your choice.
- Flexible vacation policy: We're believers in work-life balance and trust you to take the time you need with our unlimited vacation policy.
- Remote and diverse team: We're committed to fostering an inclusive environment where you can do the best work of your life with a global, fully-remote team.
Company HQ
SoMa, San Francisco, CA
Leadership
Colin Sidoti
(Co-Founder)Prior to co-founding Clerk in 2019, Colin was an Independent Consultant for nearly 8 years. He also spent 1 year at We-Care.com as a Web Developer.
Braden Sidoti
(Co-Founder & CTO)Previously a Member of the South Park Commons. He was also an iOS Engineering Manager at Inspirato and an iOS Developer at hostess.fm and Fuzz Productions.
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