Senior Backend Engineer (Go/Java) — NYC Onsite

Koop Technologies; New York (NY); On-site; USD 150,000 - 230,000; Full time

Benefits offered by this job

Competitive salary and equity options

Health and dental package

Flexible time off and paid holidays

Job summary

Koop Technologies in the Greater New York City Area is seeking a Senior Backend Software Engineer to build modern microservices backends using Go and Java, with Terraform and Kubernetes. The role emphasizes end-to-end involvement from ideas to deployment in a fast-paced, security-focused environment.

We value experience with AI-native development, NoSQL databases, and containerized architectures on AWS. This is an in-person, full-time position offering competitive salary and equity, with growth

Qualifications

• 5+ years of experience developing complex software applications.
• Experience with AI-native software development (Claude Code, Codex).
• Experience with Go or Java, desire to learn and use both.
• Experience with NoSQL databases.
• Experience building microservices in Kubernetes, AWS ECS/EKS/Fargate, or other container frameworks.
• Desire to learn the latest software development practices and apply them in real product development.
• Founder mindset, tremendous work ethic, and excellent written/verbal skills.

Responsibilities

• Develop modern microservices backend using Go, modern Java, Terraform, Kubernetes
• Design application architectures, make difficult technical decisions with tradeoffs
• Touch every aspect of software engineering: from ideas to requirements, implementation, deployment and testing
• Contribute to the team culture, take part in hiring
• Learn by doing, experiment with newest technologies and stacks
• Build products at the cutting edge of security compliance and risk management

Skills

Go

Java

Kubernetes

AI-native development

NoSQL

AWS

Terraform

Tools

Terraform

Kubernetes

AWS ECS/EKS

Job description

Koop Technologies in the Greater New York City Area is seeking a Senior Backend Software Engineer to build modern microservices backends using Go and Java, with Terraform and Kubernetes. The role emphasizes end-to-end involvement from ideas to deployment in a fast-paced, security-focused environment.

We value experience with AI-native development, NoSQL databases, and containerized architectures on AWS. This is an in-person, full-time position offering competitive salary and equity, with growth