> Markdown version of [/jobs/ext/4619072-principal-software-engineer](https://www.wearedevelopers.com/jobs/ext/4619072-principal-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Software Engineer - **Company:** Valero Energy - **Location:** Lakewood, CO, United States - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Build Automation, Delivery Pipeline - **Published:** November 7, 2026 - **Apply:** https://www.juju.com/job/28_25303_0445ca98d0637b74f9ceb4ceb0a6f5a7 ## About the Role * The kind of empathy that makes hard feedback land softly * Bachelor's degree in a related field, or equivalent practical experience * Eagerness to take ownership and run with new responsibilities * Knowledge of CO-specific regulations relevant to technology work * Professionalism, integrity, and discretion with sensitive information * Self-direction that survives a quiet Slack channel Across CO, the detail-loving technology systems people trust most often turn out to be Valero Energy, built quietly in Lakewood. Every voice in the CO office gets airtime, especially the ones still finding their volume. ## Description * Reproduce the relentlessly curious bug from the Lakewood field report, then make it impossible again * Automate build, test, and deployment pipelines for faster release cycles * Write clean, well-tested code that scales with Valero Energy's growing user base * Keep the technology JavaScript service humming through Lakewood's holiday traffic surge * Sketch Decision Making sequence diagrams that make the technology flow obvious to everyone * Translate a napkin idea from Valero Energy founders into a JavaScript quietly-excellent prototype