Software Engineer

Energy Innovation Corp; Milwaukee (WI); On-site; USD 74,000 - 110,000; Full time

Job summary

Energy Innovation Corp is seeking a Software Engineer in Milwaukee with a strong Ruby background to build resilient distributed systems and own the development of experiments. The role emphasizes test-first mindset, mentorship, and customer-focused collaboration across teams.

You will pair with engineers locally, analyze Jest metrics, and translate ideas into production-ready prototypes, driving latency improvements and system reliability in a hybrid work model.

Qualifications

• 3+ years of Flexibility reps, not just Flexibility exposure.
• Demonstrated capacity to mentor or support mid-level teammates.
• The kind of curiosity that reads the docs before asking.
• Customer-focused outlook with strong interpersonal skills.
• Ability to unblock others and work well in a team.

Responsibilities

• Ship Flexibility experiments fast, kill the losers, and double down on what sticks
• Architect fault-tolerant distributed systems leveraging Ruby and Flexibility
• Translate Jest metrics into the one chart Amazon leadership checks each morning
• Pair-program tricky Ruby edge cases with engineers across Milwaukee, WI
• Translate a napkin idea from Amazon founders into a Ruby autonomy-rich prototype
• Hunt down the latency spikes nobody at Amazon can explain

Skills

Ruby

Team collaboration

Mentoring teammates

Customer focus

Latency analysis

Tools

Jest

Job description

Our Software Engineer role rewards the community-minded habit of writing the test before you trust the feature, especially around Ruby. What sets the offer apart is trust — $74,000 - $110,000 and hybrid hours are nice, but the technology ownership is the headline.

Key Responsibilities

• Ship Flexibility experiments fast, kill the losers, and double down on what sticks
• Architect fault-tolerant distributed systems leveraging Ruby and Flexibility
• Translate Jest metrics into the one chart Amazon leadership checks each morning
• Pair-program tricky Ruby edge cases with engineers across Milwaukee, WI
• Translate a napkin idea from Amazon founders into a Ruby autonomy-rich prototype
• Hunt down the latency spikes nobody at Amazon can explain

What You'll Bring

• A teammate's instinct to unblock others before yourself
• Demonstrated capacity to mentor or support mid-level teammates
• The kind of curiosity that reads the docs before asking
• Customer-focused outlook with strong interpersonal skills
• 3+ years of Flexibility reps, not just Flexibility exposure

Out of a converted warehouse in Milwaukee, Amazon has quietly grown into a candidly-kind force shaping how technology gets done. Psychological safety is something we actively build, so disagreeing in good faith is encouraged.

We pair $74,000 - $110,000 with a seasoned mentor, so your Jest sharpens fast while the benefits quietly take care of everything else.

Hiring is happening now, not last quarter, for this Software Engineer seat.