Senior Software Engineer

Happy Returns, a UPS Company

Senior Software Engineer developing systems for efficient returns solutions at Happy Returns. Leading technical projects and mentoring engineers while ensuring platform reliability and performance.

Posted 6/6/2026full-timeRemote • 🇺🇸 United StatesSenior💰 $175,000 - $220,000 per yearWebsite

Tech Stack

Tools & technologies

GoPostgresReactTypeScript

About the role

Key responsibilities & impact

Own the design, implementation, delivery, and long-term maintainability of new features and systems using modern languages and frameworks such as Go, TypeScript, React, and PostgreSQL
Lead and contribute to system architecture discussions and technical design reviews to ensure our systems are scalable, reliable, secure, and maintainable
Proactively identify technical projects, process improvements, and advocate for burning down technical debt
Raise the engineering bar through thoughtful code reviews, clear technical feedback, and consistent application of clean code and testing practices
Mentor engineers through design discussions, pairing, documentation, code reviews, and knowledge-sharing sessions
Collaborate closely with Product Managers, DevOps, QA Engineers, and cross-functional stakeholders to translate business goals into simple, durable technical solutions
Use AI-assisted development tools thoughtfully to accelerate coding, debugging, testing, documentation, and design exploration while maintaining high standards for correctness, security, and maintainability
Own the health and stability of our systems through thoughtful testing, monitoring, debugging, observability, and production support

Requirements

What you’ll need

6+ years of professional experience building, operating, and maintaining production web applications
Experience designing, implementing, testing, and operating REST APIs and distributed services in production
A track record of shipping clean, maintainable, and well-tested code while helping others do the same
Experience leading technical discussions, mentoring engineers, and influencing engineering practices across a team
Strong collaboration skills and experience working closely with Product Managers, DevOps, QA Engineers, and cross-functional stakeholders to deliver business outcomes
Ability to break down ambiguous problems, evaluate tradeoffs, and deliver pragmatic technical solutions
A self-starter mindset with the ability to drive work independently, communicate clearly, and thrive in a fully remote work environment

Benefits

Comp & perks

Health insurance
401(k) matching
Flexible work hours
Paid time off
Remote work options

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

GoTypeScriptReactPostgreSQLREST APIsdistributed servicesclean codetesting practicesdebuggingmonitoring

Soft Skills

mentoringcollaborationcommunicationproblem-solvinginfluencingself-startertechnical feedbackknowledge-sharingdesign discussionsprocess improvements