# AWS Data Engineer - Company: [Onenergy]() - Location: Argentina; Mexico City, Mexico City, Mexico - Team: Information Technology - Posted: September 11, 2026 ## Job description ON.energy is building the backbone of energy and AI infrastructure powering grid-safe data centers and mission-critical facilities. The company supplies and operates hyperscale power systems that solve the toughest resilience challenges, delivering custom solutions for AI data centers, mission-critical facilities, and front-of-the-meter assets. ON recently announced a 5GW partnership, with 3GW currently under construction across multiple hyperscale data center campuses. With patented technology and proprietary software, ON.energy develops projects worldwide that set new benchmarks for resilience. ### Role Summary ON.energy is building the power infrastructure that makes the AI era possible. Our systems are 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. You’ll be the fourth engineer on a growing data team, helping scale our AWS-based data lakehouse and working primarily with industrial data sources and high-volume time-series data. No prior experience in the energy sector is required, we’ll support you in learning the domain. ### Key Responsibilities * Build and maintain scalable ETL/ELT pipelines for batch and real-time processing, including high-frequency time-series ingestion. * Evolve the Data Lakehouse — optimizing storage, performance, cost, and data consistency. * Manage orchestration workflows with complex dependencies and error handling. * Deliver production-ready, analytics-optimized datasets, engaging directly with end users to understand how they consume data. * Implement data governance, security controls, and audit policies across the AWS ecosystem. * Build monitoring, alerting, and data quality testing for platform reliability. ### Key Requirements * Bachelor’s degree in Computer Science, Computer Engineering, or a closely related discipline. * 3+ years of hands-on Data Engineering on AWS, with real exposure to modern data lakehouse architectures. * English at B2 or above. Daily work with English-speaking teams and written documentation. * Production experience with **open table formats, preferably Apache Iceberg** (table design, partitioning, schema evolution). Coming from Delta Lake or Hudi? We’ll support you in transitioning. * Core AWS data services: **Glue, Athena, Lambda, and S3**. * Designing and maintaining **ETL/ELT pipelines** for batch and streaming workloads. * **Python (PySpark / Python Shell)** and **advanced SQL** (window functions, CTEs, execution plan tuning). * **Data modeling for analytical workloads** in a lakehouse context — medallion architectures, incremental loads, deduplication, historical backfills. * **Infrastructure as Code:** Terraform or CloudFormation. Preferred Experience Step Functions · Kinesis · Lake Formation · DynamoDB · custom ETL with boto3, pyiceberg, pyarrow · CI/CD for Glue or Lambda · time-series and IoT/telemetry data at scale #LI-AD1 --- **For US-based roles - What you’ll get:** * 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 - What you’ll get:** * 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 [recruitment@onenergystorage.com](mailto:recruitment@onenergystorage.com) * Benefits vary by role and location and are subject to change. **Agency Notice:** ON.energy does not accept unsolicited resumes from staffing agencies, search firms, or third-party recruiters. Resumes submitted without a fully executed Master Services Agreement (MSA) and a written request from an authorized member of our Talent Acquisition team will be considered the property of ON.energy. No placement fees or compensation will be paid for unsolicited candidate submissions. ## Apply [Apply on Onenergy]() Canonical job page: