Principal Software Engineer

Energy Innovation Corp; Concord (NH); On-site; USD 147,000 - 195,000; Full time

Benefits offered by this job

Medical benefits

Dental benefits

Vision benefits

Paid time off

Mentorship program

Job summary

Walmart in Concord, NH is seeking a Principal Software Engineer to build scalable, reliable systems and drive production stability. You will pair with analysts, profile memory usage, and chase leaks to keep Concord nodes healthy.

You bring 10+ years of experience, strong judgment on escalation, and a writer's ear for tone in high-stakes emails. The role offers growth, mentorship from day one, and a competitive salary range.

Qualifications

• Strong multitasking ability without sacrificing quality.
• Principal-caliber judgment about when to elevate and when to absorb.
• A writer's ear for tone in a high-stakes email.
• Adaptability and resilience when facing shifting requirements.

Responsibilities

• Pair with technology analysts so Walmart's Communication models match real behavior.
• Profile Project Management memory use and chase down the leaks crashing Concord nodes.
• Keep Walmart's RabbitMQ CI under ten minutes so Concord, NH engineers stay in flow.
• Resurrect flaky Nginx tests until the Concord, NH suite is trustworthy again.
• Build internal tooling that improves developer productivity and velocity.
• Monitor system health and set up alerting for steady-handed production environments.

Skills

RabbitMQ

gRPC

System design

Leadership

Mentorship

Tools

Nginx

Job description

We measure our technology engineers by what they make easy for everyone else, and that's the Principal Software Engineer bar in Concord. Frame it as Walmart trusting your 10 years with $147,000 - $195,000, a technology mandate, and the room to grow into leadership.

Key Responsibilities

• Pair with technology analysts so Walmart's Communication models match real behavior
• Profile Project Management memory use and chase down the leaks crashing Concord nodes
• Keep Walmart's RabbitMQ CI under ten minutes so Concord, NH engineers stay in flow
• Resurrect flaky Nginx tests until the Concord, NH suite is trustworthy again
• Build internal tooling that improves developer productivity and velocity
• Monitor system health and set up alerting for steady-handed production environments

What You'll Bring

• Strong multitasking ability without sacrificing quality
• Principal-caliber judgment about when to elevate and when to absorb
• A writer's ear for tone in a high-stakes email
• Adaptability and resilience when facing shifting requirements

Walmart is a fast-growing technology company in Concord, NH, where RabbitMQ and gRPC drive everything we do. People here care as much about how we work together as what we ship.

Expect $147,000 - $195,000 plus full medical, dental, and vision benefits, generous paid time off, and real mentorship from day one.