Senior Software Engineer

Egreenservices; Plymouth (MN); On-site; USD 108,000 - 154,000; Full time

Benefits offered by this job

Mentorship

Benefits

Growth opportunities

Job summary

Costco in Plymouth, MN seeks a Senior Software Engineer to own meaningful projects, contribute to scalable systems, and help the team ship fast. This full-time role offers a salary range of $108,000 to $154,000 and opportunities to mentor, grow, and contribute to high-quality software.

You will refactor legacy code, spot React anti-patterns, maintain backward-compatible gRPC schemas, and translate ideas into a prototype while focusing on performance and efficient resource use.

Qualifications

• Proven ability to analyze systems and translate data into actionable recommendations.
• Strong analytical and problem-solving capabilities are required.
• Experience recognizing design patterns across technology engagements.
• Familiarity with Plymouth market and local tech landscape is a plus.

Responsibilities

• Profile and refactor legacy code to reduce technical debt over time.
• Spot the self-directed React anti-pattern in review before it spreads through Costco.
• Keep gRPC schemas backward-compatible so Costco never forces a breaking upgrade.
• Translate a napkin idea from Costco founders into a gRPC quietly-excellent prototype.
• Optimize application performance, latency, and resource utilization at scale.

Skills

Analytical thinking

Data interpretation

Problem solving

Pattern recognition

Local market knowledge

Curiosity

Job description

We need someone who reads stack traces the way other people read headlines, and we're calling that someone a Senior Software Engineer. At Costco, a full-time Senior Software Engineer earns $108,000 - $154,000, owns meaningful projects, and grows with a team that ships fast.

Key Responsibilities

• Profile and refactor legacy code to reduce technical debt over time
• Spot the self-directed React anti-pattern in review before it spreads through Costco
• Keep gRPC schemas backward-compatible so Costco never forces a breaking upgrade
• Translate a napkin idea from Costco founders into a gRPC quietly-excellent prototype
• Optimize application performance, latency, and resource utilization at scale

What You'll Bring

• The reliability that lets a manager stop checking in
• Comfort interpreting data and translating findings into clear recommendations
• Strong analytical and problem-solving capabilities
• Pattern recognition earned across many technology engagements
• Familiarity with the Plymouth market and local technology landscape
• Curiosity and a continuous drive to sharpen your technology craft

At Costco, the quietly-ambitious Plymouth crew believes technology should feel boring and reliable, never thrilling and fragile. A full-time role with us means real responsibility, real trust, and real support behind you.

The headline reads $108,000 - $154,000; the fine print is all upside, mentorship, benefits, and freedom to grow your Initiative.

Stamped current this morning, the full-time opportunity awaits your application.