Senior / Principal Site Reliability Engineer (NYC / MIA)

About Crossmint

In the 2000s, the world came online. Now, it’s coming onchain—and we’re making it happen, faster.

Crossmint is a one-stop-shop developer platform for companies building onchain. We completely remove the complexity of building and using blockchain applications. Our platform provides all of the infrastructure companies need to build apps that scale to millions, without needing to orchestrate multiple vendors. It lets them create experiences that mirror the traditional web with familiar features like FaceID and email sign-ups, while eliminating gas fees and other friction points.

Our suite includes wallets, payments, onboarding, on / off ramps, tokenization, AI agent infrastructure, and other essential onchain building blocks, across 40+ blockchains.

We’re building a world where companies can get their entire blockchain backend, through a few lines of code, to build the next generation of the internet. Join us!

Location

NYC or Miami

Type of Employment

Full-time

Salary range

Senior level : 170,000 - 185,000 USD

Principal level : 195,000 - 210,000 USD

Note : We determine candidate levels through insights gained during the interview process.

About the role

We’re looking for a Site Reliability Engineer with strong infrastructure engineering expertise and leadership potential. You’ll work alongside the existing team to stabilize and scale our onchain infrastructure as demand grows.

The ideal candidate thrives in high-ownership environments, can independently manage complex deployments (particularly Node.js services on AWS), and brings an operational mindset to problem-solving. While this is primarily an individual contributor role, you’ll be expected to help guide, mentor, and eventually manage others on the team.

Responsibilities

As a Site Reliability Engineer, you will be part of the team responsible for Crossmint products’ availability, performance, efficiency, monitoring, and emergency response. Your responsibilities will include :

• Stabilize Production Environments : Triage and resolve recurring infrastructure issues ensuring uptime, performance, and operational maturity.
• Deploy and Manage Services : Own deployment pipelines and cloud infrastructure for Node.js applications running on AWS.
• Build for Observability : Enhance monitoring, logging, and alerting systems to provide clear visibility into system health and performance, minimizing false positives and improving incident response.
• Improve Developer Velocity : Design internal tools, workflows, and CI / CD pipelines that make life easier for product and platform teams, balancing reliability with speed.
• Drive Proactive Reliability Work : Identify weak points before they become incidents. Champion initiatives like chaos testing, failover planning, and load testing to build real resilience.

About You

To thrive in this role, you should possess the following qualifications :

Platforms like Azure, AWS, and GCP.

Bonus Points

We highly value candidates with :

Please keep in mind : This is the full list of everything we’re looking for. You don’t need to check every single box to be a strong candidate, and having a good number of these would already indicate a solid fit for the role.

Why Join Us?

Benefits

Our Principles

Talent research indicates that women are often less inclined than men to apply for a role unless they have experience in 100% of the listed skills. However, this list is only a guide. We welcome your application even if you feel you meet around 75% of the requirements. At Crossmint, we believe skills can be learned, and diversity makes us stronger.

We work to foster a respectful environment where each person can be their authentic self, free from harassment, racism, and any form of discrimination. We proudly uphold our commitment to diversity and inclusion as an equal opportunity employer, and this policy applies to all employment practices within our organization.

Please note that Crossmint never conducts AI-based interviews, and all of our processes include an initial video call with a team member. Crossmint will not request your personal identification documents or any payment at any point during your interview process. Please stay vigilant about potential fraud. If you receive an email that claims to be from Crossmint but ends with any domain other than @crossmint.com, @crossmint.io or @paella.dev, it is not from us. We own these three domains listed before, and they are the only legitimate ones.

Please let our Talent Team know if you need any assistance completing any forms, or participating in the process.

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