Hire the Best AWS Developers
in Canada

Over 20 years in the IT industry. Solution-oriented, highly analytical, and resourceful candidate with extensive experience in network administration and support. • Experience with AWS cloud services • Experience with Microsoft cloud services • Experience in Systems/Network Administration • Experience with PowerShell and bash • Technology certification MCSE, MCITP, MCSA 2012, CompTIA A+, MCSA: Windows Server 2016, MCSA: Office 365, Installing and configuring Windows 10, CompTIA Linux+, AWS Certified Cloud Practitioner, AWS SysOps Administrator, AWS DevOps – Professional, AWS Solution Architect, HashiCorp – Terraform Associate, AWS services (EC2, RDS, VPC, S3, Route53, SQS, IAM, CloudWatch, CloudFormation, CloudFront, IAM, Security Groups, Step Function). Manage pipelines, development DR strategy using TF, Jenkins etc.

Hi there! I'm Rafael Silva Vergara, a versatile software developer with over 5 years of professional experience delivering high-quality, scalable web applications for businesses of all sizes. My expertise lies in full-stack development, microservices architecture, and creating seamless user experiences. I have a proven track record in both corporate and freelance settings, making me adaptable to a variety of project needs. What I Can Do for You: Front-End Mastery: I craft dynamic and responsive user interfaces using React, TypeScript, and modern design principles to ensure your users have an engaging experience. Back-End Expertise: From Django and Node.js to Laravel, I design APIs and back-end systems that are performant, secure, and tailored to your requirements. Database Optimization: Skilled in MongoDB and MySQL, I can manage complex data relationships and streamline your database performance. DevOps & Deployment: With experience in Docker, Kubernetes, and cloud platforms like Azure, I ensure your application is robust, scalable, and easy to maintain. End-to-End Testing: Utilizing tools like Jest and Cypress, I deliver thoroughly tested solutions. Why Work With Me? I pride myself on delivering clean, maintainable code and fostering strong communication with my clients. Whether you're looking to build a cutting-edge application or optimize an existing one, I’m here to help you achieve your goals. Tech Stack: React | TypeScript | Node.js | Django | PHP | Laravel | GraphQL | REST APIs | Docker | Kubernetes | MongoDB | MySQL | Adobe XD | Figma

I help organizations build production-ready AWS platforms, including serverless Architecture Design, secure VPC networks, CI/CD, and Terraform/CDK infrastructure that’s fast, secure, observable, and cost-optimized, following AWS Well-Architected principles without surprise bills. With 5+ years of experience in cloud application development, DevOps, and scalable SaaS systems (using Amazon Web Services), I specialize in Serverless technology that provides the technical backbone that allows startups to launch features faster, reduce bugs, and scale without stress. 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝘀 𝗳𝗿𝗼𝗺 𝗣𝗿𝗲𝘃𝗶𝗼𝘂𝘀 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀: ✔️ Aviation SaaS (AWS) – Built reusable TypeScript CDK infrastructure templates with comprehensive testing suite, enabling rapid multi-environment deployments. Achieved sub-100ms system response times while implementing cost controls that reduced monthly infrastructure spend by 30%. ✔️ AI Engineering Platform (AWS) – Designed and deployed enterprise-grade infrastructure using ECS Fargate, ALB, WAF, and EFS across multi-AZ deployment, implementing OWASP Top 10 protection, automated health monitoring with email alerts, and zero-downtime CI/CD pipeline. ✔️ Cost Optimization & Compliance – Implemented cost management system with service-level budget tracking, automated anomaly detection, and selective resource enablement. ✔️ Secure Multi-Tenant Architecture – Designed organization-centric data model with VPC-isolated compute, Cognito authentication, and hardened security policies, enabling secure credential management and compliance for enterprise aviation operations. 𝗪𝗵𝗮𝘁 𝗜 𝗱𝗲𝗹𝗶𝘃𝗲𝗿 𝗶𝗻 𝗦𝗽𝗿𝗶𝗻𝘁𝘀: ◉ CI/CD Pipelines → Automated testing + deployments (GitHub Actions, GitLab CI, AWS CodePipeline) ◉ Scalable Cloud Infrastructure → AWS Lambda, API Gateway, DynamoDB, S3, written in either Terraform or Typescript AWS CDK ◉ Developer Workflow Optimization → Clear processes, documentation, and faster release cycles ◉ Cloud Cost Optimization → Budget alerts, cost allocation tags, service-level tracking, and automated anomaly detection (AWS Budgets, CloudWatch, Cost Explorer) 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 ◉ IaC: Terraform, AWS CDK (TypeScript), CloudFormation ◉ Serverless: API Gateway, Lambda (Node/TS), EventBridge, SQS/SNS ◉ Containers & Orchestration: ECS Fargate (auto-scaling, circuit breaker rollback), ECR (multi-platform images), Docker optimization ◉ Storage & Data: EFS (persistent container storage), S3 (lifecycle policies, Terraform state), DynamoDB (single-table, TTL/streams, state locking), ElastiCache Redis ◉ Auth & Security: Cognito, JWT/RSA validation, Secrets Manager, VPC, SGs ◉ Networking & Load Balancing: VPC (multi-AZ, public/private subnets), ALB (health checks, target groups), NAT Gateway cost optimization, CloudFront, Route 53 ◉ DevOps & CI/CD: GitHub Actions/Bitbucket Pipelines, env promotion, test coverage 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 ◉ Cloud Architecture & Well-Architected Reviews (trade-offs, diagrams, roadmap) ◉ Terraform/CDK Infrastructure (multi-account/assume-role, reusable modules) ◉ Serverless Backends (API Gateway + Lambda, DynamoDB design, queues/events) ◉ Security Hardening (IAM least-privilege, VPC egress, secrets, audit) ◉ Cost Optimization & FinOps (Budgets/alerts, tagging, storage lifecycle) ◉ CI/CD & Automation (GitHub Actions/Bitbucket, testing, env promotions) 𝗦𝗸𝗶𝗹𝗹𝘀: AWS Lambda, API Gateway, DynamoDB, VPC, CloudFront, Route 53, IAM, Cognito, CloudWatch, S3, ElastiCache, EventBridge, SNS, SQS, AWS CDK, Terraform, CloudFormation, GitHub Actions, Bitbucket Pipelines, Cost Explorer, AWS Budgets.

Do you remember that scene in Pulp Fiction when Jules and Vincent are in a car covered in blood with a dead body in the backset, absolutely freaking out, and they have to call Mr. Wolf? He steps in, gets to the job site in record time, takes control of the situation and cleans up the mess that nobody else had any idea how to deal with. Well on Upwork, I am that guy. Except instead of cleaning up crime scenes, I help companies navigate high-stakes, complex technical challenges across the modern web. Why clients choose to work with me: - 𝗭𝗲𝗿𝗼 𝗵𝗮𝗻𝗱-𝗵𝗼𝗹𝗱𝗶𝗻𝗴: I excel in ambiguous, complex situations. Hand me a messy problem, and I’ll return with an intuitive, production-ready solution. - 𝗡𝗼 "𝗧𝗲𝗰𝗵-𝗦𝗽𝗲𝗮𝗸": As an intuitive logician, I value clarity and precision. I use short video walkthroughs to summarize bugs, progress, and outline technical choices so you can understand situations and make decisions fast. - 𝗔𝗴𝗻𝗼𝘀𝘁𝗶𝗰: I am cloud and framework agnostic. Having shipped production code in at least four distinct programming languages, worked in both AWS and GCloud, I adapt quickly to new stacks as I have a solid background in the fundamentals of web engineering. 𝗛𝗲𝗿𝗲 𝗮𝗿𝗲 𝘀𝗼𝗺𝗲 𝘁𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 𝗜'𝘃𝗲 𝘂𝘀𝗲𝗱 𝗶𝗻 𝟮𝟬𝟮𝟲 Stripe, TripleWhale, Blotout, Netlify, Tailwind, TypeScript, Astro, React, GTAG, AppSheet, NVIM Above all, I’m a problem solver who thinks in systems. Languages and frameworks are just tools, and tools can be figured out quickly. What matters most is having the engineering intuition to step into a complex, ambiguous situation and design a clean, logical solution that aligns with business goals. Drop me a line, and let’s see if I'm a good fit.

Linux Administrator | Certified AWS Solutions Architect | Certified AWS Developer | Cisco Certified Network Professional | Kubernetes engineer It all started almost 20 years ago when I decided to conquer the unconquered so I started to use Linux for everything I needed. Technology has changed drastically since then but my love to UNIX system has not. During all these years I have mastered my expertise in field of systems administration but also Cisco networking especially routing and switching. In order to get with the times I have also added cloud computing and DevOps to my portfolio. I believe that time is money so I always try to automate work with tools like Ansible or Jenkins. Today I am a CEO of Cloud Pacific IT Solutions helping clients around the world with all their systems and cloud needs.

𝗝𝗮𝘃𝗮 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 🖥️, 𝗦𝗽𝗿𝗶𝗻𝗴 𝗕𝗼𝗼𝘁 🌱, 𝗠𝗶𝗰𝗿𝗼𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 🛠️, 𝗔𝗪𝗦 ☁️, 𝗥𝗘𝗦𝗧 𝗔𝗣𝗜𝘀 🔗 I help businesses build scalable, secure, and high performance backend systems that handle growth without slowing down. Most applications work well in the beginning. The problems start when traffic increases. APIs become slow, deployments become risky, and maintaining the code becomes expensive. That's where I come in. 𝗔𝘀 𝗮 𝗦𝗲𝗻𝗶𝗼𝗿 𝗝𝗮𝘃𝗮 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘄𝗶𝘁𝗵 𝟭𝟯+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲, I've helped startups and enterprise companies design, build, and optimize backend systems that scale reliably in production. I am not just a Java Developer who writes code. I help businesses create backend architectures that support growth, improve performance, and reduce technical debt. 𝗥𝗲𝘀𝘂𝗹𝘁𝘀 𝗜'𝘃𝗲 𝗗𝗲𝗹𝗶𝘃𝗲𝗿𝗲𝗱 • Built scalable Java Developer solutions serving thousands of daily users with high availability. • Designed Microservices architectures that reduced deployment risks and improved system reliability. • Developed Spring Boot applications that improved API response times and backend performance. • Helped businesses migrate legacy systems into modern Java Developer architectures. • Delivered production ready backend platforms for startups and enterprise organizations. Every project starts with a business goal and ends with measurable results. 𝗪𝗵𝗮𝘁 𝗜 𝗗𝗼 𝗝𝗮𝘃𝗮 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 • Custom backend application development • Enterprise Java solutions • Legacy application modernization • Backend performance optimization • Secure and maintainable architecture 𝗦𝗽𝗿𝗶𝗻𝗴 𝗕𝗼𝗼𝘁 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 • REST API development • Spring Security • Spring Data JPA • Authentication and authorization • Scalable backend services 𝗠𝗶𝗰𝗿𝗼𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 • Distributed systems design • Service decomposition • API Gateway implementation • Event driven architecture • System scalability and resilience 𝗔𝗪𝗦 𝗖𝗹𝗼𝘂𝗱 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 • AWS deployment and infrastructure • EC2, ECS, Lambda • Cloud architecture design • Monitoring and optimization • Cost effective cloud operations 𝗥𝗘𝗦𝗧 𝗔𝗣𝗜 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 • API design and implementation • Third party integrations • Payment gateway integration • Documentation and testing • Secure API architecture 𝗪𝗵𝗮𝘁 𝗠𝗮𝗸𝗲𝘀 𝗠𝗲 𝗗𝗶𝗳𝗳𝗲𝗿𝗲𝗻𝘁 Most Java Developers focus only on writing code. I focus on the business impact of the software. 𝗕𝗲𝗳𝗼𝗿𝗲 𝗯𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝗮𝗻𝘆𝘁𝗵𝗶𝗻𝗴, 𝗜 𝗮𝘀𝗸: • Will this architecture still work when traffic grows? • Can future developers maintain it easily? • Is it secure? • Is it optimized for performance? • Can it scale without major rewrites? This approach helps clients avoid costly problems later. 𝗪𝗵𝗼 𝗜 𝗪𝗼𝗿𝗸 𝗕𝗲𝘀𝘁 𝗪𝗶𝘁𝗵 • Startups building new SaaS products • Businesses scaling existing applications • Companies modernizing legacy Java systems • Teams adopting Microservices architecture • Organizations migrating workloads to AWS • Businesses needing secure and scalable REST APIs 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 Java, Spring Boot, Spring Security, Hibernate, JPA, Microservices, AWS, Docker, Kubernetes, REST APIs, Kafka, RabbitMQ, PostgreSQL, MySQL, MongoDB, Redis, Maven, Gradle, Git, CI/CD, Jenkins 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗛𝗶𝗿𝗲 𝗠𝗲 • 13+ years of Java Developer experience • Clean, maintainable code • Scalable backend architecture • Strong communication • Reliable delivery • Long term technical thinking If you're looking for a Java Developer who understands both software engineering and business objectives, let's discuss your project. Send an invitation and I'll respond within a few hours. Keywords: Java Developer, Senior Java Developer, Java Backend Developer, Java Software Engineer, Spring Boot Developer, Spring Boot Expert, Java Application Development, Enterprise Java Developer, Java Web Services, REST API Developer, RESTful API Development, Backend Developer, Backend Engineer, Microservices Developer, Microservices Architecture, Distributed Systems, AWS Developer, AWS Cloud Engineer, Java AWS Developer, Docker, Kubernetes, Kafka, RabbitMQ, Hibernate, JPA, Spring Security, API Integration, Database Design, PostgreSQL, MySQL, MongoDB, Redis, SaaS Backend Development, Scalable Application Development, Cloud Native Applications, Java Consultant, Software Architecture, System Design, Enterprise Application Development, Performance Optimization, CI/CD, Jenkins, Maven, Gradle, Full Stack Java Developer.