Senior Full Stack Engineer - Security Infra at YC Startup in Columbus
Career & Market Insight
Stage & Growth Trajectory: Infisical is a YC-backed, early-stage startup ($19M raised from Google and Elad Gil) with clear product-market fit — managing 1.5 billion secrets/month. Joining now means high ownership, high impact, and meaningful equity upside before a likely Series B or beyond.
Compensation: No figures are disclosed, but senior full-stack engineers at YC-backed security startups in this stage typically earn $160k–$220k base plus meaningful equity (0.1–0.5% range for early senior hires). The equity component could be particularly valuable given the company's growth trajectory and investor pedigree.
Skills You'll Build:
- Deep expertise in security infrastructure (PKI, KMS, SSH, secrets management) — one of the most in-demand and underdeveloped niches in DevSecOps.
- Full-stack ownership across React.js, Node.js, TypeScript, and optionally Go — a highly marketable combination.
- Direct exposure to enterprise customer relationships and AI-applied security — rare at the senior level.
Green Flags: Working directly with the CTO, team pedigree from Figma/AWS/Red Hat, open-source codebase (public reputation building), and a mission-driven product in a fast-growing market (DevSecOps/AI security).
Red Flags to Consider: The "not a place to coast" framing signals a high-intensity culture. No explicit mention of PTO policy or work-life balance initiatives. For those seeking structured career ladders or large-team mentorship, this early-stage environment may feel unstructured.
Bottom line: An excellent move for a senior engineer who wants to specialize in security infrastructure, gain significant ownership early, and ride a compelling growth curve.
Infisical is looking to hire exceptional talent to join our teams in building the open source security infrastructure stack for the AI era.
We're building a generational company with a world-class team. This isn't a place to coast — but if you want to grow fast, take ownership, and solve tough problems, you'll be challenged like nowhere else.
What We're Looking For
We're looking for an exceptional Senior Full Stack Engineer to help us build, optimize, and expand the foundation of the platform.
We've kept our hiring standards exceptionally high since we expect engineers to tackle a broad range of challenges on a day-to-day basis. Examples of past engineering initiatives include developing strategies for secret rotation and dynamic secrets, a gateway to provide secure access to private resources, protocols like EST and KMIP, integrations for syncing secrets across cloud providers, and entire new product lines such as Infisical PKI and Infisical SSH.
You'll be working closely with our CTO and the rest of the engineering team to:
Develop and maintain features whilst communicating directly with enterprise customers.
Expand our newer Infisical PKI, Infisical SSH, and Infisical KMS product lines.
Experiment with novel approaches for applying AI to secrets management and more broadly security infrastructure.
Requirements
Deep technical mastery of the JavaScript ecosystem, particularly React.js, Node.js, and TypeScript (3+ years).
Exceptional attention to detail and eager to learn.
A bias toward action — able to make decisions with incomplete information, iterate quickly, and take calculated risks.
Based in North or South America.
Bonus
Expertise in Go.
Some understanding of DevOps/developer tools.
Previous founder or startup experience.
Previous experience building in open source or developer tools in either a professional or personal setting.
Excellent written and oral communication skills to interact with customers directly.
How You'll Grow
In this role, you'll play a pivotal part in shaping Infisical's future — making key technical decisions, establishing foundational processes, and tackling complex scalability challenges. As you gain experience and the team expands, you'll have the opportunity to take full ownership of specific areas of our platform, driving them end-to-end with autonomy and impact.
Overall, you'll be one of the defining pieces of our team as we scale to thousands of customers over the next 18 months.
Team, Values & Benefits
Our team brings experience from companies like Figma, AWS, and Red Hat. We operate primarily as a remote team but maintain a strong presence in San Francisco, where we have an office. We also get together in person throughout the year for off-sites, conferences, and team gatherings.
At Infisical, we offer competitive compensation, including both salary and equity options. Additional benefits, such as a lunch stipend and a work setup budget, are available with more details to be found on our careers page.
About Us
Infisical is the open source security infrastructure platform that engineers use for secrets, certificates, and privileged access management. We help developers and organizations securely manage over 1.5 billion secrets each month including application configuration, database credentials, certificates, and more.
We've raised $19M from Y Combinator, Google, and Elad Gil, and our customers include Hugging Face, Lucid, and LG.
Join us on a mission to make security easier for all developers — starting with secrets management.
Frequently Asked Questions
Is this role fully remote or is there an office requirement?
What countries or regions are eligible to apply for this position?
What is the tech stack required for this role?
Does Infisical offer equity as part of compensation?
What kind of experience is Infisical looking for beyond the technical requirements?
