Senior Software Engineer - Marketing TechnologyON.energy is building the power infrastructure that makes the AI era possible.
As AI demand surges past what the grid and traditional data centers can support, ON.energy provides a new class of power technology proven at gigawatt scale and trusted by the world's leading cloud and AI companies.
Our systems are already deployed across 2.5 GW of hyper-scale campuses, validated by top U.S. national labs, and certified for grid-safe operation by major utilities.
With real products in the field, we're scaling faster than the grid can, transforming power from a bottleneck into a competitive advantage for the companies building the future.SummaryThe SeniorBusiness Systems Engineeris a key technical contributorwhose primary responsibility is to support the corporate website and the Marketing team —maintaining and enhancing the company's web presence, shipping new features and content experiences, and partnering daily with Marketing on SEO, campaigns, and content ,this role participates indesigning and implementing automated business solutions and building integrations across enterprise systems.
This role requires a strong blend of software development skills, systems thinking, and the ability to translate business needs into reliable, scalable technical solutions.
The idóneo candidate is a collaborative self-starter who can work independently while partnering closely with business stakeholders across the organization.
Key ResponsibilitiesCorporate Website & Marketing Team Support (Primary)Serve as the primary engineering partner to the Marketing team — intake requests, scope work, and deliver against marketing priorities including campaigns, landing pages, SEO, and content updates.Own day-to-day maintenance, releases, and incident response for the corporate website (Nuxt4 / Vue 3 / TypeScript, SSR onVercel; staging on develop, production on main; CI via Azure Pipelines).
Develop and ship new features and page templates across the site (home,expertises, news, team, technology, financing, contact, performance, legal), using SCSS (Dart Sass),Piniafor state, and file-based routing.Build and maintainStoryblokintegration end-to-end: author and evolve component schemas, regenerate TypeScript references (storyblok-generate-ts), and write adaptors that normalize CMS payloads into view-models consumed by Vue components andcomposables(useStory/useStories).
Partner with Marketing on SEO and performance — implement and maintainuseSeo/ Seo adaptor patterns, the custom sitemap module, structured data, and Core Web Vitals improvements.Maintain the site's visual and motion layer: Three.js WebGL scenes, shaders, and overlays (withlil-guifor debug), GSAP animations, Lenis smooth scroll, @nuxt/image with theStoryblokprovider, @blossom-carousel/vue, and inline SVG viavite-svg-loader.Uphold code quality and developer workflowMonitor site health, triage issues, and ensure uptime, accessibility, and a polished user experience across devices.Business Process Automation & IntegrationPartner with business units to analyze workflows, identify automation opportunities, and document requirements.Design, develop, and implement automated solutions that improve operational efficiency.Build and maintain integrations between enterprise systems using iPaaS platforms (e.g.,Celigo), REST APIs,



and Web APIs.Collaboration & Requirements GatheringEngage directly with stakeholders to understand business problems and translate them into clear technical specifications.Lead requirements gathering sessions and produce functional and technical documentation.Provide guidance and recommendations on technology solutions to business and IT leadership.Troubleshoot and resolve technical issues related to web applications, integrations, and automated workflows.Stay current with emerging technologies and recommend improvements to existing systems.Mentorand coach junior developers and analysts, conduct knowledge-sharing sessions, and help establish technical standards that elevate the IT team's capabilities.Required Qualifications5+ years of professional experience in software development, systems analysis, or a related IT role.Hands-on experience with enterprise integration/iPaaS platforms such asCeligo,Workato, MuleSoft, or equivalent.Strong working knowledge of REST APIs and Web API design, development, and consumption.Demonstrated ability to gather business requirements and deliver working technical solutions.Experience working cross-functionally with non-technical business stakeholders.Strong analytical and problem-solving skills with attention to detail.Preferred QualificationsBachelor's degree in Computer Science, Information Systems, or a related field (or equivalent work experience).
Experience with version control systems (e.g., Git) and CI/CD pipelines.Familiarity with cloud platforms (AWS, Azure, or Google Cloud).
Knowledge of database technologies (SQL or NoSQL) and data modeling.Experience with Agile or Scrum development methodologies.Prior experience in a mid-to-large enterprise IT environment.Experience with WebGL / Three.js, GSAP, or other interactive front-end visual and motion libraries on a production marketing site.Core CompetenciesTechnical Proficiency – Applies deep technical expertise to deliver reliable, high-quality solutions.Business Acumen – Understands business processes and translates operational needs into effective technology.Communication – Clearly conveys technical concepts to both technical and non-technical audiences.Problem Solving – Approaches complex challenges analytically and develops practical solutions.Collaboration – Works effectively across teams and builds strong working relationships with stakeholders.Ownership & Initiative – Takes accountability for deliverables and proactively identifies opportunities for improvement.
#LI-AD1For US-based roles - What you'll get:Competitive salary + annual performance-based bonus eligibilityMedical, dental, and vision insurance401(k)



with company matchPaid time off and company holidaysFor Mexico-based roles - What you'll get:Competitive salary + annual performance bonus eligibilityMajor medical expenses and life insurancePaid time off and holidays (per local policy)For all roles:Professional development and growth opportunitiesOpportunity to grow with a mission-driven team shaping the future of clean energyEqual Opportunity: ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation.Benefits vary by role and location and are subject to change.Volunteer Self-Identification of DisabilityForm CC-305Page 1 of 1OMB Control Number *********Expires 04/30/2026Voluntary Self-Identification of DisabilityForm CC-305 Page 1 of 1 OMB Control Number ********* Expires 04/30/2026Why are you being asked to complete this form?
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📌 Senior Software Engineer - Marketing Technology (Xico)
🏢 On.Energy
📍 Xico