Senior AWS Cloud Engineer

ON.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. We are seeking a Senior AWS Cloud / DevOps / Platform Engineer who operates with a high level of autonomy and technical leadership to design, build, and operate scalable, secure AWS environments.This role is ideal for experienced engineers who not only have deep hands-on AWS expertise, but can also independently drive architecture decisions, lead implementations end-to-end, and proactively identify improvements across cloud infrastructure, networking, and automation.You will partner with DevOps, Security, and Application teams while serving as a key technical owner for cloud platform reliability, scalability, and performance.Key ResponsibilitiesLead the design, deployment, and ongoing optimization of AWS infrastructure using Infrastructure as Code (IaC) (CDK, CloudFormation, Terraform)Own AWS networking architecture and implementation, including:VPC design, subnet strategy, and routingClient VPN and site-to-site VPNInternet Gateways, NAT GatewaysSecurity Groups and Network ACLsVPC Peering, Transit Gateway, and PrivateLinkArchitect and support hybrid and multi-account AWS environments at scaleIndependently diagnose and resolve complex networking issues, including VPN, Direct Connect, and routing challengesDrive CI/CD and infrastructure automation initiatives in collaboration with DevOps teamsProactively monitor and optimize cloud environments for performance, cost, scalability, and availabilityLead incident response, root cause analysis, and implementation of preventive measuresEnsure adherence to AWS security best practices and compliance standardsProduce and maintain high-quality technical documentation and architectural diagramsRequired Skills & Experience5–8+ years of experience in cloud, infrastructure, or DevOps engineeringStrong hands-on expertise with AWS services, including:EC2, VPC, IAM, ALB/NLB, Route 53S3, RDS, CloudWatchAdvanced networking knowledge, including:TCP/IP, DNS, HTTP/SCIDR design, subnetting, and routing strategiesFirewalls, load balancing, and secure network designProven experience designing and managing Infrastructure as Code solutionsStrong Linux systems knowledgeDemonstrated ability to independently troubleshoot and resolve complex system and network issuesExperience operating in multi-account AWS environments (AWS Organizations, cross-account access)Education (Required)Bachelor’s degree in Computer Science, Engineering, Information Systems, or a related technical field from an accredited university in LATAM (e.g., Argentina, Chile, México, or equivalent) is requiredSoft SkillsStrong ownership mindset with the ability to work independently and drive outcomesExcellent problem-solving and analytical skillsAbility to clearly communicate complex technical concepts in EnglishProactive, self-directed, and highly accountableCollaborative approach with the ability to influence across teams For 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 holidays For Mexico-based roles - What you’ll get:Competitive salary + annual performance bonus eligibilityChristmas Bonus (Aguinaldo): 30 daysMajor 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.Accommodations: If you need an accommodation during the application process, email recruitment@onenergystorage.comBenefits vary by role and location and are subject to change.

Skills
AWS

Experience
8+ yrs

Work arrangement
Yes