Senior Software Engineer - Refactor, Scale & Prototypes

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

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.