Senior System Administrator with 6+ years of experience delivering reliable, secure, and scalable IT operations for remote teams and growing businesses.

I help companies eliminate downtime, strengthen system security, and maintain smooth day-to-day operations—without the overhead of an in-house IT team.

Core expertise:

• Windows & Linux Server Administration
• Cloud Platforms (AWS, Azure, Google Cloud)
• Microsoft 365 & Google Workspace Administration
• Network Configuration, VPNs, and Security Hardening
• Backup, Recovery, and Business Continuity Planning
• Remote Desktop Services & User Access Management
• Technical Support (L1–L3) and Incident Resolution
• System Monitoring, Automation, and Optimization

What I bring to the table:

• Proactive system management — issues are identified and resolved before they impact operations
• Strong troubleshooting skills — able to handle critical incidents efficiently under pressure
• Security-first approach — focused on protecting data and infrastructure
• Clear communication — translating technical issues into actionable insights
• Dependability — consistent performance with minimal supervision

I have hands-on experience supporting production environments, managing remote users, and implementing long-term solutions that improve system stability and reduce recurring issues.

Remote-ready setup:

• High-speed primary internet with backup connection
• Dedicated, quiet workspace
• Flexible availability for full-time or long-term roles

If you’re looking for a System Administrator who can take ownership of your infrastructure and ensure everything runs smoothly, I’m ready to contribute from day one.

Let’s build a stable and efficient IT environment for your business.

Fullstack Developer

Summary / About Me
"I don’t just build software; I build competitive advantages.

With 7 years of experience as a Full-Stack Developer, I specialize in helping non-technical founders bridge the gap between a vision and a market-ready product. I’ve spent years optimizing my workflow to solve the two biggest problems founders face: speed to market and scalability.

The Accelerator Edge: Kofi + Codex
I use a specialized, lightweight PHP framework called Kofi, paired with Codex. Unlike heavy, over-configured frameworks, Kofi is designed to be AI-friendly. Its clean architecture and intuitive routing allow AI coding assistants (like Codex or Claude) to learn the codebase instantly. This enables me to generate UI/UX, pages, and core logic at 2x the speed of traditional developers.

Why I use this stack for your business:
- Rapid UI/UX with AlpineJS: I use AlpineJS for advanced data manipulation and modern behaviors, providing a reactive, 'app-like' feel without the bloat of heavy frontend frameworks.

- Security & Speed (SSR): I prioritize Server-Side Rendering for your web apps. This ensures faster initial loading times (crucial for SEO) and a much more secure environment than standard client-side apps.

- Reduced Technical Debt: Because the framework is lightweight and easily understood by AI, maintenance and future handovers are seamless and cost-effective.

I am your Technical Partner.
I handle the Jira boards, Bitbucket repos, and complex Cloud deployments (AWS, GCP, Firebase, Heroku). I translate your ideas into technical roadmaps, ensuring we build exactly what is necessary for your MVP without wasting your budget on over-engineering.

Let’s turn your idea into reality."

DevOps & Cloud Engineer | 6+ Years in IT | 2× AWS Certified

I design and deliver scalable, secure, and disaster-resilient cloud solutions that solve real business problems using modern DevOps practices.

I specialize in highly regulated environments, building systems that are multi-AZ, fault-tolerant, and aligned with AWS Well-Architected best practices.

I’m not just maintaining servers—I engineer systems that run reliably at scale.

Core Expertise
• Cloud Migration • CI/CD Automation • Infrastructure as Code • Cloud Security • Cost Optimization • Production Reliability • Infrastructure as Code

Tech Stack
• DevOps: Docker, Terraform, EKS, ArgoCD, GitOps, Helm, GitHub Actions, Azure DevOps
• Cloud (AWS): EC2, ECS, EKS, S3, IAM, VPC, CloudWatch, ALB, WAF, KMS, GuardDuty, Cost Explorer, Lambda,
• Observability: Datadog
• Scripting: Python, Bash, AWS CLI, SQL
• Database: MySQL, PostgreSQL, Aurora
• Security: Datadog SIEM

Impact Areas
• Automated and optimized CI/CD pipelines
• Designed secure and scalable cloud architectures
• Led cloud migrations and infrastructure modernization
• Improved system reliability and deployment efficiency

Domain Experience
Fintech (Payments) • IT Consulting • EdTech & Digital Media

AWS Certified:
• Cloud Practitioner (CLF-C02)
• Solutions Architect – Associate (SAA-C03)

Portfolio: -----------
LinkedIn: -----------.-----------/in/george-iii-estellore/

Infrastructure Operations Lead with 11+ years of combined experience across DevOps, Site Reliability Engineering, Software QA, and Software Development. Proven track record in designing secure, scalable cloud and hybrid infrastructure, leading DevSecOps initiatives, implementing Infrastructure as Code, and driving automation across CI/CD pipelines. Experienced in ISO 27001, SOC 2, and PCI-DSS aligned environments. Passionate about reliability engineering, security-first architecture, and operational excellence.

Security
- Stackrox, Trivy, Detectify, Github Security- AWS GuardDuty, WAF
- SSO- Auth0 SAML
Infrastructure - AWS EKS, Kubernetes, Openshift, Docker, Lambda, EKS GPU enabled Cluster, ECS, EC2, ELB, S3, CloudFront
Logging and Monitoring- Prometheus, Grafana, Thanos, Sentry, ELK
Database - AWS RDS (MySQL, Postgres, MSSQL)
CICD- GitHub Actions, ArgoCD, Argo Workflow, Argo Events, Helm, Kustomization, Jenkins
Registries- DockerHub, Harbor, ChartMuseum
IaC- Terraform, AWS CDK, Crossplane (UXP)
Agile- Linear, Notion, Jira, Confluence
Scripting- Python, Bash

Cloud- AWS, Azure, GCP

I’m a seasoned full stack engineer with expertise in React, Node.js, and TypeScript. React Native Expo. My proficiency also spans AWS services, GraphQL, Serverless architecture (including SAM and Serverless Framework), and microservices architecture. Notably, I specialize in e-commerce platforms, particularly Commercetools, with experience in Shopify, Marketplacer, and WooCommerce.

Additionally, I'm the creator of the popular SaaS Next.js boilerplate ????, -----------v. I also contribute articles on Medium focusing on React Native mobile development.

I am a Technical Virtual Assistant with over 2 years of corporate experience supporting backend systems, APIs, and cloud-based applications. My experience comes from working in structured corporate environments where system reliability, documentation, and clear communication are essential.

I help businesses and remote teams by monitoring applications, investigating technical issues, coordinating with developers, tracking tasks and incidents in Jira, and supporting deployments and testing activities. I also maintain clear documentation, SOPs, and support notes to ensure smooth day-to-day operations.

My technical background includes backend and API support (REST APIs, Postman, Swagger), cloud and deployment support (AWS EC2/EKS, Docker, Kubernetes), and CI/CD workflow assistance using GitHub Actions. I am comfortable working with engineers, following processes, and handling support-level technical tasks independently.

I am currently transitioning from corporate technical support roles into freelancing and am looking for a long-term, part-time remote role (around 20 hours per week) where I can provide reliable technical and operational support.

Rate: ?500/hour (negotiable for long-term or higher-hour engagements)
Availability: Part-time | Remote

I am good at researching products, I am talented with writing, I can adapt to any environment, I am flexible and can adjust if given enough time, I am hardworking and always submit needs on time without errors.

I help enterprise organizations integrate and upgrade Oracle EBS R12 systems, automate high-volume database and workflow processes, and deliver reliable 24/7 support for mission-critical operations. Over 10 years of hands-on experience working with Fortune 500s, multinational corporations, and major public institutions in Healthcare, Telecommunications, Retail, Manufacturing, Education, Consulting, and Government sectors.
Implementation highlights include: multi-org Oracle EBS R12 integrations across Financials, Supply Chain, HR, and Projects modules; national-scale web portal launches; system migrations; and process optimizations that result in faster feature releases and minimized downtime.
At Cognizant, delivered mission-critical solutions using a hybrid architecture: AWS cloud integrated with Oracle EBS R12 systems to maximize reliability, scalability, and automation for enterprise clients.
Core Skills & Impact:• Oracle EBS R12 module delivery across: - Financials: Accounts Payable (AP), Accounts Receivable (AR), General Ledger (GL) - Supply Chain: Purchasing (PO), Inventory, Product Data Hub, Order Management - Human Resources: Core HR, Payroll - Projects• RICE Implementation & Support (Reports, Interfaces, Conversions, Extensions)• Python Automation, data integrity improvement, workflow redesign• Cloud & DevOps: AWS Glue, S3, CloudWatch, Lambda, Docker, CI/CD• Global support experience: collaborated across Manila-LATAM-US, supporting round-the-clock enterprise ops• Technically led process improvements, mentored dev teams
Currently pursuing cloud, DevOps, and automation certifications for next-gen enterprise solutions. Rates reflect senior expertise, open to negotiation. Available for full-time remote or freelance engagement.

Principal Data Engineer with a proven track record of driving impactful projects in data engineering. With extensive experience in Python, SQL, Airflow, and database management, I have led successful initiatives, earned certifications in AWS and Python, and excelled in project development and delivery. I am a resilient problem-solver who quickly adapts to change, collaborates effectively, and demonstrates unwavering dedication. My future goals include seeking new challenges to further enhance my technical skills and contribute to exceptional teams, while continuing to drive success in data engineering.

Since 2014, I have passionately pursued a career in web development, consistently honing my skills across a diverse spectrum of programming languages, frameworks, and libraries. My journey as a Full Stack Web Developer has allowed me to seamlessly merge creative design with robust functionality. Through years of hands-on experience, I have not only cultivated a deep understanding of the technological landscape but also an innate ability to transform complex ideas into user-friendly, high-performance web applications. My unwavering commitment to staying abreast of industry trends empowers me to deliver innovative and efficient solutions that exceed expectations.

I am a passionate programmer.

Works with the development team in deploying applications.
Use AWS EC2, Opsworks, SES, SNS, Cloudflare.
Install open source applications and modify according to requirements.
Perform automated installation using Chef.
Set up monitoring system using Elasticsearch, logstash, and kibana stack.
Set up CI/CD environment using Git, Jenkins, Teamcity, Capistrano, and Docker.
Train helpdesks to use monitoring system and tea-----------mbers to use existing tools for CI/CD.

I am a seasoned software engineer with extensive experience in backend development using Express.js, Laravel, and NestJS, coupled with a strong foundation in CI/CD pipelines leveraging GitHub Actions and AWS CodePipeline. Proficient in deploying scalable applications using Amazon ECS and integrating robust Docker workflows from development to production. Has made a complete system from scratch that pertains to HIPAA EHR System and Education System
Key Skills
Backend: API design, microservices, and scalable architectures.
DevOps: Containerization, orchestration, and automated deployments.
Testing: Passionate about crafting reliable, test-driven solutions for software stability.
On the frontend, I specialize in building engaging, performant applications with React, utilizing TanStack Query for data fetching, Jotai for state management, and combining Mantine and Tailwind CSS for stunning, user-friendly interfaces, or any packages that can meet the business needs.
I thrive in collaborative environments where quality and innovation are at the forefront, and I'm passionate about delivering value-driven software solutions.

Experienced AWS Cloud Engineer and System Administrator with over 7 years of hands-on experience managing both cloud-based and on-premises IT infrastructures. Specialized in architecting secure, scalable, and cost-efficient solutions on AWS, including Amazon Connect implementations for enterprise clients. Adept in system automation, infrastructure performance optimization, and cybersecurity best practices using IAM, encryption, and vulnerability scanning.

Proven track record in maintaining cloud servers, and streamlining operations through scripting and automation tools such as PowerShell, Power Automate, AWS Lambda and AWS-native services. Deep understanding of hybrid cloud environments, including Azure integration and identity management via SSO. Recognized for delivering high-availability systems and proactive support, driving operational efficiency and minimizing downtime across diverse technical ecosystems.

As Ruby on Rails Developer with over four years of experience in designing, developing, and deploying scalable web applications. Proficient in creating robust APIs and implementing best practices in coding, testing, and deployment. Experienced in agile methodologies, collaborating closely with cross-functional teams to deliver high-quality software solutions that meet business objectives. Adept at optimizing application performance and enhancing user experience, with a strong focus on clean, maintainable code. Passionate about leveraging the latest technologies and tools to drive innovation and efficiency in software development.

Java Certified Programmer, senior api developer using java and nodejs, full stack and oracle pl/sql developer

I work for almost 1 year as secretary. and I'm knowledgeable in any kind of data entry

As a Spring Boot Developer and Software Engineer, I specialize in developing RESTful APIs using Java Spring Boot. I have extensive experience working with databases such as MySQL and PostgreSQL, and I am well-versed in version control platforms like GitLab and GitHub. Additionally, I am skilled in utilizing Docker for containerization and have hands-on experience with various other tools that support efficient software development. My focus is on building scalable, robust, and efficient backend systems.

I am a passionate Software Developer with a strong passion in software development, seeking a challenging opportunity to leverage my technical skills and problem-solving abilities to contribute to the company that is aligned to the organization's business goals.

Very flexible worker and can adapt to any work environment.

Customer Service representative
Sales rep
Service desk associate

I am previous quality assurane and web developer specialized in web development using html, css, js php and node.js and can use react.js if i have to. I can work on fullstack, backend or frontend server configuration and application deployment. I am a reliable and fast learner.

I have over 1 year experience in writing for digital marketing. When it comes to writing content with different niches, I have written content such as for companies, food industries and many more. I'm confidently in this kind of work, and I am ready to explore more.