Blockchain Developer

Energy Innovation Corp; Rock Hill (SC); On-site; USD 71,000 - 103,000; Full time

Job summary

Walmart in Rock Hill, SC seeks a mid-level Blockchain Developer to scale backend systems and own critical initiatives. The role involves re-architecting data flows, building self-service tooling, and coordinating with teams to ensure uptime across peak traffic periods.

Ideal candidates have 3+ years of experience, strong Kafka and Go skills, and a track record of delivering under deadlines. This contract role offers mentorship, benefits, and SC flexibility.

Qualifications

• 3+ years of experience in engineering with strong instincts and reliability.
• Ability to re-architect tech flows and manage high-load systems.
• Proven track record shipping under deadline pressure and documenting work.

Responsibilities

• Re-architect the technology flow so MySQL handles ten times current load.
• Hand off Go runbooks to ensure smooth on-call coverage.
• Build Docker self-service tools to reduce ticket volume.
• Wire up Kafka feature flags for safe testing on traffic.
• Defend uptime during critical hours with proactive monitoring.

Skills

Kafka

Go

System architecture

Incident response

Tools

Docker

MySQL

Kafka

Job description

Join our engineering team in Rock Hill and help us scale systems that handle traffic from across SC and beyond. Backed by 3 years of technology experience, you'll own key initiatives, partner closely with the team, and earn $71,000 - $103,000.

Key Responsibilities

• Re-architect the technology flow so MySQL handles ten times Rock Hill's current load
• Hand off Go runbooks so the next on-call at Walmart sleeps better
• Build Docker self-service tools so Rock Hill teams stop filing tickets for everything
• Wire up Kafka feature flags so Walmart can test on Rock Hill traffic risk-free
• Defend Walmart uptime through the 2 a.m. Rock Hill pages nobody volunteers for

What You'll Bring

• A SC sensibility, or genuine curiosity about this market
• 3+ years that left you with strong instincts and few illnesses
• The diplomacy to align stakeholders who don't agree yet
• Detail-oriented approach with a commitment to accuracy
• Fluency in Kafka earned the hard way, not just from a tutorial
• Track record that proves you can innovative ship under deadline pressure
• The discipline to document while it's fresh, not after it's forgotten

Walmart exists to solve hard technology problems with an oddball-friendly approach and a Rock Hill, SC-rooted culture. Candid, kind feedback is part of the job, and we coach toward growth rather than blame.

At Walmart, $71,000 - $103,000 is just the opener; the mentorship, benefits, and Rock Hill, SC flexibility are where the offer gets good.

Still warm and still open, this contract listing just got updated.

If a mid-level Blockchain Developer role in SC fits the life you're building, let's connect.