Senior Software Backend Engineer

Carlsmed

Senior Software Engineer developing backend services for healthcare technology startup. Working with Node.js, Java/Kotlin, and React to build personalized surgery platform.

Posted 6/20/2026full-timeCarlsbad • California • 🇺🇸 United StatesSenior💰 $140,000 - $160,000 per yearWebsite

Tech Stack

Tools & technologies

AWSAzureCloudGoogle Cloud PlatformGraphQLJavaJavaScriptKotlinNode.jsPostgresReactSpringSpring BootSpringBoot

About the role

Key responsibilities & impact

Design and implement scalable backend services using Node.js, GraphQL, and Java/Kotlin (Spring Boot)
Build and maintain responsive, performant frontend applications using React
Optimize PostgreSQL databases for performance and reliability
Lead technical design discussions, architecture reviews, and code reviews
Mentor junior engineers and champion engineering best practices
Partner with product managers to define requirements and delivery timelines
Troubleshoot and debug complex issues across the full stack

Requirements

What you’ll need

Bachelor’s degree in Computer Science
5 – 10 years of front end / back end and database experience required
Proficiency in Node.js and server-side JavaScript
Backend experience with Java and/or Kotlin, including Spring Boot
Expert knowledge of GraphQL, including schema design and performance optimization
Advanced React experience, including state management and performance tuning
Deep understanding of PostgreSQL, including query optimization and schema design
Strong grasp of software design patterns and engineering principles
Strong communication, problem-solving, and debugging skills
Prisma ORM, JPA, and database migrations - preferred
DevOps and cloud platforms (AWS/GCP/Azure) - preferred
CI/CD pipelines and testing frameworks - preferred

Benefits

Comp & perks

paying 100% of monthly healthcare, dental & vision insurance premiums
401(k) plan with employer matching
unlimited PTO

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

Node.jsJavaKotlinSpring BootGraphQLReactPostgreSQLPrisma ORMJPACI/CD

Soft Skills

communicationproblem-solvingdebuggingmentoringleadership

Certifications

Bachelor’s degree in Computer Science