Sr. Software Engineer - Backend

Xapply; Northern (KY); On-site; USD 120,000 - 180,000; Full time

Job summary

Xapply seeks a Sr. Software Engineer - Backend in the United States to design and deliver scalable backend services using Go within a distributed systems landscape.

You will balance hands-on development with technical leadership across multiple teams to ensure performance, security, and maintainability. You will collaborate with Product, Design, Operations, Data Science, and Support while emphasizing testing, observability, and production readiness.

Qualifications

• Backend development in Go with distributed systems.
• Strong focus on testing, observability, and safe coding practices.
• Experience mentoring engineers and guiding architecture decisions.

Responsibilities

• Design and implement scalable backend services in Go.
• Lead technical directions and architectural decisions across teams.
• Ensure performance, security, and reliable production support.

Skills

Go

Distributed systems

Performance optimization

Security

Testing

Observability

Technical leadership

Production support

Architecture decisions

Education

Bachelor's degree in Computer Science or related

Tools

Go ecosystem (Go tooling)

Job description

Go Distributed Systems Backend Development Performance Optimization Maintainability Security Technical Leadership Testing Observability Safe Coding Practices Production Support Architecture Decisions

Description

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Sr. Software Engineer - Backend based in United States.

This role offers the opportunity to design and deliver scalable backend software within a complex, distributed technology environment.
You will architect and develop reliable applications and services while considering performance, maintainability, security, and system-wide impact.
The position combines hands-on engineering with technical leadership across large and complex projects involving multiple teams.
You will work closely with Product, Design, Operations, Data Science, Business Analysts, and Technical Support to deliver robust solutions.
A strong focus on testing, observability, safe coding practices, and production support will help ensure high-quality software throughout its lifecycle.
You will also contribute to architecture decisions, mentor junior engineers, and help guide delivery across ambiguous and technically demanding workstreams.
This is an opportunity for an experienced backend engineer to take significant ownership while working with a modern technology stack centered around Go and distributed systems.