Justworks
Senior Software Engineer, Product Foundations
$168K–$235K
New York, New York · Senior · Full-time · Posted Oct 27, 2026
- Experience
- Minimum of 5 years of professional hands-on experience.
About the job
Build and maintain scalable platform products and infrastructure that support core Justworks customer workflows, with a focus on reliability, performance, security, and customer impact.
What you'll do
- Own large-scale projects from discovery through launch and collaborate across functions to solve customer challenges.
- Improve system performance, reliability, scalability, testing, monitoring, and continuous deployment; add capabilities to high-volume, fault-tolerant infrastructure.
- Provide technical leadership, knowledge-sharing, mentorship, and secure handling of sensitive data.
What they ask for
- At least 5 years of professional hands-on experience.
- Mastery of modern server-side languages; proficiency with SQL.
- Proficiency with cloud infrastructure management.
- Experience mentoring engineers and working closely with designers and product managers.
Nice to have
- Golang is a plus but not required.
- AWS is preferred.
Pay
USD 167,500.00 to USD 235,000.00 per year (base salary)
Tools
Golang, Ruby on Rails, Javascript, MySQL, Kafka, AWS, Docker, Kubernetes
AI focus
The team developed the company’s first AI-powered product experience; this role’s specific AI responsibilities are not stated.
Model-written summary · the original posting is authoritative