Sebastian Romero Laguna

Software Engineer | Backend & Cloud Specialist
📍 Brisbane, QLD, Australia

About Me

Experienced and versatile Software Engineer with a professional background since 2017, specializing in backend development, cloud infrastructure, and automation. Proven expertise in building scalable systems using Go, Python, AWS, and Terraform, complemented by strong full-stack capabilities in TypeScript and React/Next.js.

Recently completed a Master of IT (graduating December 2025), adding advanced academic knowledge in cybersecurity and Artificial Intelligence to a foundation of extensive hands-on experience. A proven leader with a track record of mentoring junior developers and driving projects from conception to deployment in agile environments.

Skills & Technologies

Backend Development

Go (Golang) Node.js Python PHP REST APIs Microservices

Cloud & DevOps

AWS Terraform Docker Kubernetes CI/CD GitHub Actions

Frontend Development

JavaScript TypeScript React Next.js Tailwind CSS

Databases

PostgreSQL MySQL MongoDB

Professional Experience

Software Engineer

Platform Recipes
October 2025 - Present | Brisbane, QLD, Australia
  • Developed new features to offer premium content under a subscription model
  • Collaborated with the lead engineer to integrate new services into the existing cloud architecture

Software Engineer (Internship)

Platform Recipes
July 2025 - September 2025 | Brisbane, QLD, Australia
  • Authored foundational technical guides and Architectural Decision Records (ADRs) for cloud infrastructure
  • Automated cloud infrastructure provisioning and management using Terraform
  • Developed a reusable framework for troubleshooting Kubernetes pod readiness and liveness probe failures
  • Enhanced cloud security by implementing AWS Backup with Multi-party Approval (MPA) policies

Software Engineer

Platform Recipes
January 2023 - Present | Brisbane, QLD, Australia
  • Develop and maintain critical backend microservices and CLI tools using Go
  • Design and implement data visualization components providing CEO-level insights into KPIs
  • Collaborate within a global, agile team, utilizing CI/CD pipelines with GitHub Actions and Terraform
  • Actively participate in code reviews to ensure high-quality, maintainable, and scalable code

Backend Developer

Nivelics SAS
September 2022 - January 2023 | Medellín, Colombia
  • Architected and developed core backend services using microservices architecture with Go, Gin, and GORM
  • Engineered a secure user authentication and Role-Based Access Control (RBAC) system from scratch
  • Deployed and managed containerized applications using Docker on AWS

Research Scholar

Salisbury University
January 2021 - December 2021 | Salisbury, MD, USA
  • Contributed to a data analysis project on COVID-19 risk factors in Colombia
  • Developed and presented research findings at Salisbury University's 'Posters on the Bay' symposium
  • Gained practical experience in data analysis, machine learning, and formal academic presentation

Web Developer

La Nación Newspaper
December 2018 - December 2019 | Neiva, Colombia
  • Led the development and launch of a new e-commerce channel, contributing to a 50% increase in revenue
  • Implemented strategic performance and SEO optimizations that expanded the user base by 2.4 million
  • Collaborated with stakeholders to translate business requirements into technical solutions

Featured Projects

Serverless Static Website Deployment

Developed a fully serverless static website leveraging AWS with Lambda for form processing and CloudFront CDN for global content delivery.

AWS Lambda CloudFront Serverless

Hyperparameter Optimization for CNNs

Investigated and compared three HPO methods – PSO, Grid Search, and Random Search – for optimizing CNN hyperparameters using PyTorch.

PyTorch AI/ML Python

COVID-19 Risk Factor Analysis

Analyzed COVID-19 risk factors in Colombia using Big Data technologies to identify comorbidities associated with patients.

Data Analysis Python Machine Learning

Lingua Verse

A language learning application designed to help users expand their vocabulary through interactive quizzes and spaced repetition.

React Node.js MongoDB

Bakery Invoice Generator

A full-stack web application to streamline invoicing for small businesses, featuring dynamic invoice creation and PDF generation.

Next.js TypeScript Tailwind CSS

AI/ML Model Implementation Portfolio

A portfolio of projects focused on implementing models from scratch, including Particle Swarm Optimization for CNNs.

Python AI/ML Data Science

Education

Master of Information Technology

CQUniversity
November 2023 - November 2026 (In Progress)

Focusing on advanced topics in cybersecurity, cloud computing, and artificial intelligence.

Bachelor of Engineering - Computer Software Engineering

Fundación Escuela Tecnológica de Neiva 'Jesús Oviedo Pérez'
February 2017 - December 2021

Completed a comprehensive engineering program with a focus on software development principles and practices.

Virtual Technologies Program

Tecnoacademia SENA Huila
January 2014 - December 2014

Early research and development program focusing on foundational web technologies.

Languages

Spanish

Proficiency: Native

English

Proficiency: Full Professional

Certifications & Professional Development

Marketing for Startups Course

Issuer: Platzi
Date: August 2023

View Certificate →

Work Smarter, Not Harder: Time Management

Issuer: UC Irvine
Date: June 2023

View Certificate →

Introduction to AWS: Fundamentals of Cloud Computing

Issuer: Platzi
Date: February 2023

View Certificate →

SQL for Data Science

Issuer: University of California, Davis
Date: August 2022

View Certificate →

Test Of English as a Foreign Language IBT

Issuer: TOEFL
Date: July 2021

Linear Regression with NumPy and Python

Issuer: Coursera
Date: April 2021

View Certificate →

Researcher and Innovator Youth Scholarship

Issuer: Minciencias
Date: October 2020

Learning Data Science: Understanding the Basics

Issuer: LinkedIn
Date: April 2020

Professional Development in Cybersecurity

Institution: FET - Jesús Oviedo Pérez
Duration: 120 Hours
Date: 2020

English as a Second Language (ESL Program)

Institution: Salisbury University
Date: 2021

Services

AI Integration & Workflow Automation Strategy

AI Strategy Business Process Automation Technology Consulting

Strategic advisory for businesses looking to leverage Generative AI and automation. I assess your current workflows, identify high-impact opportunities for AI integration, and design a strategic roadmap for implementation. This includes selecting the right AI tools (like Copilot, Gemini, and other agentic systems), defining spec-driven development processes, and ensuring your team is equipped to build and maintain AI-powered solutions efficiently.

Cloud-Native Architecture & Design

Cloud Architecture AWS Consulting System Design

Expert architectural design for building scalable, resilient, and cost-effective applications on AWS. I work with your team to design robust microservices architectures, define best practices for serverless computing, and create a blueprint for your cloud infrastructure that aligns with your long-term business goals and security requirements.

Infrastructure as Code & CI/CD Pipeline Implementation

DevOps Engineering Cloud Infrastructure Terraform

I build and configure your complete cloud infrastructure and deployment pipelines using modern DevOps practices. This service includes writing production-grade Terraform code to manage your AWS resources and setting up automated CI/CD workflows with GitHub Actions for reliable, repeatable, and fast deployments.

Custom CLI & Automation Tool Development

Go (Golang) CLI Tools DevOps Automation

Development of custom command-line interface (CLI) tools and automation scripts in Go to solve your team's specific challenges. Whether it's for automating deployments, managing infrastructure, or simplifying complex workflows, I build robust, cross-platform tools that make your engineering team faster and more effective.

REST API & Microservices Implementation

Backend Development Microservices Go (Golang) Python

Backend development focused on building secure, well-documented, and high-performance REST APIs and microservices. Using Go and modern frameworks, I implement services that are designed for scalability and maintainability, forming the backbone of your web and mobile applications. Also interested in advanced solutions using Python.

Full-Stack Web Development

Web Development Full-Stack React Go (Golang)

End-to-end web application development using modern technologies. From front-end interfaces with React and TypeScript to robust back-end systems in Go or Python, I deliver scalable, maintainable solutions that are deployed on secure AWS infrastructure and meet your business requirements.

Get In Touch

I'm open to new opportunities and collaborations. Feel free to reach out!

neosoftwaredevelopment@gmail.com