[Hiring] Senior AWS Cloud Engineer @ON.energy

Role Description

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 Responsibilities

• Lead 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 routing
  • Client VPN and site-to-site VPN
  • Internet Gateways, NAT Gateways
  • Security Groups and Network ACLs
  • VPC Peering, Transit Gateway, and PrivateLink
• Architect and support hybrid and multi-account AWS environments at scale
• Independently diagnose and resolve complex networking issues, including VPN, Direct Connect, and routing challenges
• Drive CI/CD and infrastructure automation initiatives in collaboration with DevOps teams
• Proactively monitor and optimize cloud environments for performance, cost, scalability, and availability
• Lead incident response, root cause analysis, and implementation of preventive measures
• Ensure adherence to AWS security best practices and compliance standards
• Produce and maintain high-quality technical documentation and architectural diagrams

Qualifications

• 5–8+ years of experience in cloud, infrastructure, or DevOps engineering
• Strong hands-on expertise with AWS services, including:
  • EC2, VPC, IAM, ALB/NLB, Route 53
  • S3, RDS, CloudWatch
• Advanced networking knowledge, including:
  • TCP/IP, DNS, HTTP/S
  • CIDR design, subnetting, and routing strategies
  • Firewalls, load balancing, and secure network design
• Proven experience designing and managing Infrastructure as Code solutions
• Strong Linux systems knowledge
• Demonstrated ability to independently troubleshoot and resolve complex system and network issues
• Experience 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 required

Soft Skills

• Strong ownership mindset with the ability to work independently and drive outcomes
• Excellent problem-solving and analytical skills
• Ability to clearly communicate complex technical concepts in English
• Proactive, self-directed, and highly accountable
• Collaborative approach with the ability to influence across teams

Benefits

• For US-based roles:
  • Competitive salary + annual performance-based bonus eligibility
  • Medical, dental, and vision insurance
  • 401(k) with company match
  • Paid time off and company holidays
• For Mexico-based roles:
  • Competitive salary + annual performance bonus eligibility
  • Christmas Bonus (Aguinaldo): 30 days
  • Major medical expenses and life insurance
  • Paid time off and holidays (per local policy)
• For all roles:
  • Professional development and growth opportunities
  • Opportunity to grow with a mission-driven team shaping the future of clean energy

Equal 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 [email protected]

Benefits vary by role and location and are subject to change.