Mairo G is a proficient Data Engineer with extensive experience in cloud infrastructure, data engineering, and backend development, currently serving as a Data Engineer and Cloud Infrastructure specialist at BALANX-BIO. His expertise encompasses a broad range of technologies including AWS, Terraform, Python, and various data pipeline tools. Mairo has a proven track record of designing and implementing secure, scalable cloud environments and data pipelines, as evidenced by his roles across multiple organizations where he… Show more

1. Data Engineer + Cloud Infrastructure

   BALANX-BIO· AI/MLFeb 2026 — Present

   • Built Infrastructure-as-Code using Terraform to provision AWS platform infrastructure.
   • Implemented AWS networking components including VPCs, subnets, route tables, internet gateways, NAT gateways, and security groups.
   • Designed IAM roles and permission policies to enable secure access for platform services and engineering teams.
   • Implemented observability infrastructure using CloudWatch dashboards, log groups, and metric alarms for platform monitoring.
   • Created an EC2 onboarding and connection guide documenting the process for engineers to securely access and manage EC2 instances.

   TerraformPythonAWSCloudWatch
2. Web Developer + System Engineer Internship

   GAO TEK INCAug 2025 — Dec 2025

   • Supported application availability and reliability by setting up and maintaining local development environments using XAMPP, troubleshooting configuration issues, and ensuring stable application operation during development and testing.
   • Assisted with system maintenance tasks including configuration changes, updates, and validation of application behavior.
   • Monitored application behavior and user-facing functionality during development, identifying issues early and collaborating with team members to troubleshoot and resolve defects efficiently.
   • Contributed to documentation of setup procedures, configuration steps, and troubleshooting guidelines to support team operations.
   • Built and customized forms and UI components using plugins, shortcodes, and CSS.

   HTMLCSSXAMPPJavascriptNodejs
3. Data Engineer

   FIRE FC PREVENTIONApr 2024 — May 2025

   • Designed and managed data pipelines that collect, process and analyze data from fire safety systems.
   • Managed AWS infrastructure including S3, Lambda, and EC2 for scalable workloads.
   • Created CI/CD pipelines with GitHub Actions for seamless deployments.
   • Developed data models and implemented storage solutions to support analytics for fire risk assessments, maintenance schedules and incident reporting.
   • Created and tested frameworks to validate the performance and reliability of data-driven solutions, including machine learning models.

   PythonAWSCI/CDData Pipelines
4. Junior Data Engineer

   CHAIN CO-OPJul 2023 — Mar 2024

   • Automated 20+ ETL/ELT jobs using Airflow and GCP (BigQuery, GCS, Pub/Sub).
   • Improved job reliability and reduced manual intervention by over 70%.
   • Modeled analytics-ready data marts with dbt, consolidating data from 7+ sources.

   dbtApache AirflowData VisualizationGcpData ModelingPub/SubDockerkafka
5. Data Engineer/MLOps Intern

   HAMOYE HQMay 2023 — Sep 2023

   • Developed data pipelines with Python/SQL, improving accuracy by 15% and processing efficiency by 50%.
   • Deployed containerized ML workloads in Kubernetes and Docker, supporting reproducibility and scalable inference.
   • Contributed to ML models for electrification prediction (95% accuracy), enabling better business resource allocation.
   • Manage and optimize databases to ensure high performance, availability, and reliability.

   Machine LearningPythonSqlDockerkubernetesMongoDb
6. Backend Developer

   HNG TechMar 2026 — Jun 2026

   • Designed and implemented RESTful API endpoints for booking management
   • Built authentication system with email-only signup, OTP verification, JWT token issuance and refresh, and UUID-based user identity using PostgreSQL migrations
   • Developed admin dashboard APIs for managing clients, trainers, subscriptions, transactions, and revenue snapshots, enabling full platform visibility for operations teams
   • Implemented trainer-facing features including profile editing, availability toggling, soft delete, password reset, and client list retrieval
   • Integrated Resend email service for transactional emails — OTP delivery, session reminders, trainer setup emails — with log redaction to protect sensitive data
   • Contributed to subscription and payments infrastructure, including subscription plan management, active subscription tracking, and session platform support with database migration handling

   GOGinDockerPostgreSQJWTSwagger/OpenAPIRedis

1. Bachelor’s Degree

   NATIONAL OPEN UNIVERSITY OF NIGERIALagos, Nigeria2022 — 2025
2. Diploma in Data Engineering

   ALTSCHOOL AFRICALagos, Nigeria2022 — 2022