Senior / Staff Site Reliability Engineer

Radar; United States; On-site; USD 200,000 - 300,000; Full time

Benefits offered by this job

Competitive salary

Stock options

401(k) plan with 4% match

Health, dental, and vision insurance

Unlimited PTO

Catered lunches

Commuter and fitness benefits

Job summary

Radar is seeking a Site Reliability Engineer in the United States to develop core infrastructure using Terraform on AWS EKS. This role includes leading initiatives for high availability, delivering services to hundreds of millions of devices, and engaging directly with customers. Successful candidates will have a strong background with production AWS environments, Kubernetes, and MongoDB, and will thrive in a fast-paced startup environment. Enjoy competitive salary and equity options in a dynamic company.

Qualifications

• Experience managing a production AWS environment with Terraform.
• Experience in high-availability multi-region Kubernetes infrastructure.
• Experience managing large sharded MongoDB clusters with heavy read-write workloads.
• Experience in a high-growth startup environment.
• Interest in customer interaction and success.

Responsibilities

• Build core Radar infrastructure using Terraform on AWS EKS.
• Lead company-wide initiatives such as 99.99%+ availability.
• Deliver work used by hundreds of millions of devices.
• Participate in an on-call rotation.
• Engage customers and incorporate their feedback.

Skills

Managing production AWS environment with Terraform

High-availability multi-region Kubernetes infrastructure

Managing large sharded MongoDB clusters

Customer interaction

Tools

Terraform

AWS

MongoDB

Job description

About Radar

Radar is the global leader in geolocation, delivering geofencing SDKs, maps APIs, and AI‑enabled solutions for marketing, fraud, and operations teams.

About The Role

We’re looking for Site Reliability Engineers to work on our production infrastructure. Radar handles more than 1 billion API calls per day from over 100 million devices worldwide. We run a multi‑availability‑zone architecture and are building a multi‑region deployment.

The Stack

Terraform manages our infrastructure. Everything is deployed to AWS via EKS. We use MongoDB Atlas, CircleCI for CI/CD, and monitor production with CloudWatch, Grafana, Pingdom and PagerDuty. DNS is managed with Cloudflare. Engineers are on an on‑call rotation. Main server languages are TypeScript and Rust; data pipelines are written in Airflow and Scala Spark. We sponsor OpenStreetMaps, MapLibre and OpenAddresses.

How We Use AI

• Engineers choose which AI tools they use, with Claude being the most popular.
• We actively build custom Claude skills—for example, teaching it to debug HorizonDB, our geospatial database.
• All code changes are reviewed by an engineer knowledgeable in that area. Claude and Copilot also review all PRs.
• AI usage varies; most use it daily or weekly.
• We embrace AI while upholding rigorous coding standards.

How We Work

Our engineering team includes former technical co‑founders and experienced interns. Engineers typically hold either staff‑level expertise in one stack or are multi‑stack, comfortable spanning frontend, backend, mobile, or data engineering. We prioritize fast shipping, customer feedback, and in‑person collaboration at our NYC HQ. Weekly planning occurs on Mondays. Team members interact closely with customers and prospects, ensuring solutions are successful.

The Hiring Process

After a call with our Technical Recruiter you’ll complete several technical Zoom interviews (code screen, coding round, system design). Successful candidates are invited to our NYC HQ for a final round, meeting co‑founders and other team members.

What You’ll Do

• Build core Radar infrastructure using Terraform on AWS EKS.
• Lead company‑wide initiatives such as 99.99%+ availability, multi‑region deployment, and cost optimization.
• Deliver work used by hundreds of millions of devices.
• Participate in an on‑call rotation (one week every 1–2 months).
• Engage customers and prospects, incorporate their feedback, and drive success.

You Should

• Have experience managing a production AWS environment with Terraform.
• Have experience with high‑availability, multi‑region Kubernetes infrastructure.
• Have experience managing large sharded MongoDB clusters with heavy read‑write workloads.
• Have experience in a high‑growth startup environment.
• Be interested in customer interaction and success.

Bonus Points If You

• Are a former technical co‑founder.
• Have experience with high‑throughput, data‑intensive applications.

You’ll Work With

• Tim Julien, CTO
• Dai Shi, Senior Staff SRE
• Engineering, Customer Success, Sales Engineering, and Sales teams
• Customers and prospects

What We Offer

• Competitive salary
• Meaningful stock options in a fast‑growing company
• 401(k) plan with 4% match
• New HQ in Flatiron, NYC
• Top‑notch equipment
• Catered lunches
• Unlimited PTO
• Health, dental, and vision insurance with 100% coverage for employees
• 12 weeks of paid parental leave
• Commuter and fitness benefits

Compensation

For candidates based in the United States, the base salary range for this full‑time position is between $200,000 and $300,000 per year, with opportunities for performance bonuses and incentives. In addition to cash, Radar offers a competitive equity plan with stock option grants.

We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender, gender identity or expression, or veteran status. We are proud to be an equal opportunity workplace.