A skilled software developer, on various platforms ranging from Windows to Linux to ARM and other embedded devices (AVR, PIC, etc). My preferred programming languages include, but are not limited to: - C/C++ - Java - Python - Rust - C# - Matlab I'm familiar with various open source libraries in different programming languages such as STL, Curl, Json, GTK, Swing, BeautifulSoup, Requests, Selenium, Tkinter, and many more... I've experience in Embedded Software using various microcontrollers (AVR, PIC, STM32, TM4C123, etc...). I've used many peripherals such as (GPIO, Timer, PWM, NVIC, RCC, FPEC, UART, SPI, I2C, CAN, ADC,...), interfaced it with many sensors and actuators. I've built many projects ranging from simple projects (blinking LEDs, motor control, calculator, stop watch, ...) to more advanced projects (Bootloader, Smart Home, Digital Clock, ...). I have a strong background about Algorithms and Data Structures such as: - Dynamic Programming - Backtracking - Graphs - DFS - BFS - MST - Heap - Trie - Balanced BSTs - Segment Trees - Disjoint Set - and many more... I've solved +370 DSA problems on HackerRank platform and got ranked 660 over 23 million developers in solving coding challenges. You can find my profile in the portfolio. My primary focus in writing software is performance, without sacrificing the safety and security of the application. I will do my best to discuss all the relevant details and the scope of the project with the client, so that I can form an idea of the finished product in order to be able to lay a better groundwork design for the project.

Expert in relational database systems, especially PostgreSQL (Supabase, Amazon Aurora/RDS, Azure Hyperscale/CosmosDB/Citus, postgREST, RPC, RLS, timescaledb, PostGIS), MS SQL Server, and MySQL, with more than 27 years of experience as a database architect, designer, developer, and administrator. I’m also a software developer with 37 years of experience in many platforms, programming languages, and database systems. Expert in all of the following: * database installation, configuration, optimisation, securitisation, backups, performance improvement, encryption. * database design, SQL code optimisation, indices optimisation, coding stored procedures, increasing performance and security, partitioning. * data quality, de-duplication, normalisation, AI-assisted enrichment. * single and multi-tenant systems, JWT authentication, RLS authorisation. * REST and RPC functions, Edge/Lambda functions, Webhooks, AI APIs, Realtime, migrations. * database conversion or migration (e.g. to/from noSQL or JSON stores), interfacing with other databases, importing and exporting data, interfacing with online services (pl/perl, C, C#) * hot/cold backup and restore, recovery, replication (master/slave or master/master), mission critical * encryption in transit and/or at rest; encryption of data for authorised access only * text-file data extraction, formatting, conversion, archival, clean-up. Databases: PostgreSQL, SQL Server, MySQL, D3/Pick, Oracle, NexusDB, DB2, SQLite, COBOL, MongoDB, BerkeleyDB, Informix, Access, InterBase, Paradox, DBase/Clipper/Fox (DBF), CSV and plain text. Expertise with UAT/development/test environments, Regular Expressions (regex), batch and shell scripting, sed and other text processing tools, Excel, SOAP and web services, networking tools, and many programming languages (including Delphi, C/C++/C#, Perl, PHP, Smalltalk, Java, JavaScript, Python, and more). I can provide training and consultancy.

As a Top Rated DevOps Engineer and System Administrator with 900+ hours logged on Upwork, I specialize in creating efficient, reliable, and scalable infrastructure solutions that drive business success. TECHNICAL EXPERTISE & CERTIFICATIONS • Operating Systems: Proficient in Linux/Command Line and Shell Scripting • Containerization & Orchestration: Skilled in Docker and Kubernetes • Infrastructure as Code: Experienced with Terraform, Ansible and Puppet • Web Servers & Networking: Expertise in Nginx and Git • Cloud Platforms: AWS Certified Solutions Architect, with experience in GCP, DigitalOcean, Linode, Oracle Cloud, Vultr, and Vercel • Programming Languages: Proficient in Python and learning Rust I am passionate about continuously improving my skills and staying updated with the latest technologies. Currently, I am expanding my knowledge in Rust and exploring advanced DevOps practices to deliver even more value to my clients. In my free time you'll find me teaching Linux tricks or tinkering with Rust (the language, not the fungus).

𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 | 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 | 𝐀𝐖𝐒 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭 | 𝐀𝐯𝐚𝐢𝐥𝐚𝐛𝐥𝐞 𝐭𝐨 𝐒𝐭𝐚𝐫𝐭 𝐈𝐦𝐦𝐞𝐝𝐢𝐚𝐭𝐞𝐥𝐲 Most growing teams face the same challenges: rising cloud costs, slow release cycles, security bottlenecks, infrastructure complexity, and reliability issues that impact customers and engineering velocity. 𝐈 𝐡𝐞𝐥𝐩 𝐬𝐭𝐚𝐫𝐭𝐮𝐩𝐬 𝐚𝐧𝐝 𝐠𝐫𝐨𝐰𝐢𝐧𝐠 𝐭𝐞𝐚𝐦𝐬 𝐛𝐮𝐢𝐥𝐝, 𝐬𝐞𝐜𝐮𝐫𝐞, 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐞, 𝐚𝐧𝐝 𝐬𝐜𝐚𝐥𝐞 𝐭𝐡𝐞𝐢𝐫 𝐜𝐥𝐨𝐮𝐝 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬. As an AWS Certified Solutions Architect and DevOps/DevSecOps Engineer, I work across cloud architecture, Kubernetes, CI/CD, compliance, observability, automation, and infrastructure modernization. I help teams reduce cloud costs, improve deployment speed, strengthen security posture, and create platforms that developers enjoy using. I support AWS, Azure, Hetzner, and hybrid cloud environments, with hands-on experience delivering production-grade platforms for SaaS companies, startups, and enterprise teams. ➤ 𝐇𝐨𝐰 𝐈 𝐂𝐚𝐧 𝐇𝐞𝐥𝐩 ✔ 𝐂𝐥𝐨𝐮𝐝 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 & 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 AWS, Azure, Hetzner, multi-cloud architecture, landing zones, networking, IAM, high availability, disaster recovery, and production-ready platform design. ✔ 𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬 & 𝐂𝐨𝐧𝐭𝐚𝐢𝐧𝐞𝐫 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 Kubernetes, EKS, AKS, Helm, Docker, GitOps, cluster upgrades, scaling strategies, and developer platform enablement. ✔ 𝐂𝐈/𝐂𝐃 & 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 GitHub Actions, Jenkins, release automation, testing pipelines, deployment strategies, rollback systems, and streamlined developer workflows. ✔ 𝐃𝐞𝐯𝐒𝐞𝐜𝐎𝐩𝐬 & 𝐂𝐨𝐦𝐩𝐥𝐢𝐚𝐧𝐜𝐞 Drata implementation, SOC 2 readiness, security automation, vulnerability management, secrets management, IAM governance, audit logging, and compliance-focused infrastructure. ✔ 𝐂𝐥𝐨𝐮𝐝 𝐌𝐢𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 & 𝐌𝐨𝐝𝐞𝐫𝐧𝐢𝐳𝐚𝐭𝐢𝐨𝐧 Cloud migrations, Kubernetes migrations, infrastructure modernization, workload re-platforming, and legacy system transformation with minimal downtime. ✔ 𝐎𝐛𝐬𝐞𝐫𝐯𝐚𝐛𝐢𝐥𝐢𝐭𝐲 & 𝐒𝐢𝐭𝐞 𝐑𝐞𝐥𝐢𝐚𝐛𝐢𝐥𝐢𝐭𝐲 Prometheus, Grafana, CloudWatch, Azure Monitor, centralized logging, alerting, incident response, root cause analysis, and reliability engineering. ✔ 𝐂𝐨𝐬𝐭 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧 & 𝐅𝐢𝐧𝐎𝐩𝐬 Cloud cost visibility, resource right-sizing, reserved instance strategies, budget controls, and long-term cost governance. ✔ 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 & 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 𝐚𝐬 𝐂𝐨𝐝𝐞 Terraform, Bash, Python, infrastructure automation, operational tooling, custom scripts, self-service workflows, and repeatable deployments. ✔ 𝐒𝐚𝐚𝐒 & 𝐋𝐨𝐯𝐚𝐛𝐥𝐞 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭𝐬 Deploying and scaling SaaS applications, Lovable applications, containerized workloads, custom domains, SSL, databases, monitoring, and production operations. 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞 ⬩ AWS Certified Solutions Architect with real-world production experience ⬩ Strong across architecture, DevOps, security, and operations ⬩ Focused on measurable outcomes, not just infrastructure setup ⬩ Proven experience supporting startups through rapid growth ⬩ Practical, automation-first mindset ⬩ Clear communication and long-term maintainability Whether you need cloud architecture, Kubernetes, DevSecOps, compliance automation, migrations, cost optimization, or a complete platform built from scratch, I can help turn your infrastructure into a competitive advantage. 𝐈 𝐚𝐦 𝐚𝐯𝐚𝐢𝐥𝐚𝐛𝐥𝐞 𝐟𝐨𝐫 𝐚 𝐪𝐮𝐢𝐜𝐤 𝐜𝐚𝐥𝐥 𝐭𝐨 𝐝𝐢𝐬𝐜𝐮𝐬𝐬 𝐲𝐨𝐮𝐫 𝐫𝐞𝐪𝐮𝐢𝐫𝐞𝐦𝐞𝐧𝐭𝐬 𝐚𝐧𝐝 𝐩𝐫𝐨𝐣𝐞𝐜𝐭 𝐠𝐨𝐚𝐥𝐬. 𝐈𝐧𝐯𝐢𝐭𝐞 𝐦𝐞 𝐭𝐨 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭, 𝐚𝐧𝐝 𝐈 𝐜𝐚𝐧 𝐠𝐞𝐭 𝐬𝐭𝐚𝐫𝐭𝐞𝐝 𝐚𝐬 𝐬𝐨𝐨𝐧 𝐚𝐬 𝐩𝐨𝐬𝐬𝐢𝐛𝐥𝐞.

I'm Vlad Rybnik, and I'm your guide to the world of reliable cloud platforms. With over 5 years of experience in commercial development and more than 11 years in IT infrastructure, I've learned one thing: stability is not a luxury, but a necessity. I help businesses build, scale, and maintain systems that run like clockwork. My main goal is to give you a solution that not only works but also brings value. Whether it's infrastructure automation, deployment optimization, or backend development, I consistently prioritize efficiency and security. My arsenal: ✔Development: Proficient in Python (FastAPI), PHP (Laravel, WordPress), SQL, and Bash. ✔Databases: Work with PostgreSQL, MySQL, MongoDB, and Redis. ✔Cloud & DevOps: I manage cloud environments (AWS, Azure, GCP) and build CI/CD pipelines using GitHub Actions. ✔Infrastructure: Master of containerization with Docker and Kubernetes, building infrastructure as code with Terraform. ✔Monitoring: Set up Prometheus, Grafana, and CloudWatch to always know what's going on. What really sets me apart is my approach. I'm open to new things, find it easy to get along with the team, and am not afraid of complex challenges.

🎯 100% Refund If I set the wrong expectations and can’t deliver. No questions asked. Top-Rated Plus, Upwork Top 1 Percent, Highly recommended. What do I offer: 1- 100% work satisfaction 2- 24/7 Support 3- On-time delivery 4- Enterprise quality 5- 15 Days of free support after completion of the project Cloud Architect with 10+ years of DevOps experience, specializing in scalable, platform-agnostic cloud infrastructures. Proven track record in high-scale environments. Proficient in Infrastructure as Code, automation, and scripting, with expertise in CI/CD, Cloud Services, and Infrastructure Automation. Skilled in building, deploying, and managing applications on AWS, GCP, Azure, and OCI, with a focus on robust monitoring and observability. ➜ Zazmic Inc, San Francisco, CA • Automation Tools: Terraform, Ansible • Cloud Platforms: GCP • Containerization: Docker, Helm charts • CI/CD: GitLab CI • Monitoring: HPA, Cloud Armour • Databases: Different kinds of databases on GCP ➜ Tripleseat, Concord, Massachusetts • Cloud Platforms: Azure, GCP • Containerization: Docker • CI/CD: Azure Pipelines, Azure DevOps • Monitoring: Grafana, Prometheus ➜ Century Communities, Inc., Greenwood Village, CO • Cloud Platforms: AWS, Oracle Cloud • Automation Tools: Lambda functions, Ansible • Containerization: Docker, AWS ECS, EKS • CI/CD: CircleCI, GitHub Actions, AWS CodePipeline • Monitoring: CloudWatch, CloudFront ➜ Summary: • Proficient in Kubernetes, I architect and manage clusters to facilitate agile and scalable application deployment. • Skilled in Infrastructure as Code (IaC), I employ Terraform, Ansible, and Chef to automate configuration and ensure uniform environments. • With hands-on experience in CI/CD pipeline creation and maintenance using Jenkins, GitLab CI, and Azure DevOps, I ensure the efficient and reliable delivery of software products. • Possessing a robust background in Linux/UNIX system administration, including expertise in managing RHEL environments. • Armed in scripting with Bash and Python to streamline automation processes and optimize operational efficiency. • Good Know how of monitoring and logging tools such as Elasticsearch, CloudWatch, Prometheus, and Grafana, enabling proactive monitoring of infrastructure and application health. • Experienced in VMware virtualization, proficiently managing VMs, executing V-motion operations, and maintaining Snapshots. • Adaptable to fast-paced 24/7 production environments, providing responsive on-call support, including weekends. • Successfully deployed and managed scalable microservices on Kubernetes clusters across GCP and AWS platforms. • Expertise extends to migrating on-premises workloads to the cloud, focusing on performance optimization and cost efficiency. • Possess proactive problem-solving and troubleshooting skills essential for maintaining high-quality production environments. • Strong communication and collaboration abilities, facilitating effective bridging of the gap between development and operations teams. ➜ Tools: Git, Ansible, AWS CloudFormation, ELK, GitLab, GitLab CI/CD, Terraform, Docker Compose, Grafana, Telegraf, CircleCI, Traefik, Amazon CloudWatch, Amazon Elastic Container Service (Amazon ECS), GitHub, VPN, AWS Fargate, Amazon CloudFront CDN, AWS IAM, Amazon Virtual Private Cloud, Docker Swarm, NGINX, Puppet, Jenkins, Amazon EKS, Amazon Simple Queue Service, RabbitMQ, Celery, TeamCity, Nagios, Makefile, AWS CodeDeploy, Confluence, AWS CodeBuild ➜ Platforms: Linux, Docker, Amazon Web Services, AWS Elastic Beanstalk, Amazon EC2, Kubernetes, AWS Lambda, Windows, Apache Kafka, JVM, Heroku, Azure, WordPress, New Relic, Windows Server, Google Cloud Platform, Blockchain, Rancher ➜ Storage: Amazon Aurora, Amazon S3, MySQL, MongoDB, InfluxDB, Redis, On-premise, Amazon DynamoDB, Redis Cache, Elasticsearch, MySQL, Databases, PostgreSQL ➜ Languages: Python, Bash, Java, PHP, Markdown, Go, JavaScript, SQL, TypeScript ➜ Frameworks: Flask, Django, Windows PowerShell, .NET, Serverless Framework ------------------------------------------------------------------------------------------------------ #CloudArchitect #DevOps #Kubernetes #Terraform#Azure #GCP #Docker #CI_CD #InfrastructureAsCode #CloudMigration #DevOpsEngineer #Automation #CloudInfrastructure #Microservices #CloudSecurity #NetworkSecurity #AWSCloud #AzureCloud #Serverless #AWSLambda #AzureDevOps #GitLabCI #GitHubActions #Linux #Unix #Bash #Python #GoLang #Java #Git #Ansible #Jenkins #NGINX #ApacheKafka #Databases #SQL #MySQL #PostgreSQL #MongoDB #Redis #DynamoDB #CloudStorage #S3 #CloudWatch #BackendInfrastructure #WebInfrastructure

Platform & DevOps Architect | Kubernetes, GitOps, HA Databases, Cloud I help companies build reliable production infrastructure and solve critical incidents. My specialties include: * Kubernetes and GitOps platforms * Cloud solutions (AWS/Azure/GCP) * PostgreSQL Patroni and database HA * Active Directory and Windows infrastructure * Disaster Recovery and High Availability * Production troubleshooting and performance optimization With 20+ years of infrastructure experience, I work with startups and enterprises to design, automate and operate business-critical systems. Linux / Platform Engineering: • Production Kubernetes platforms using GitOps (FluxCD, ArgoCD), Helm, and Docker • Web and application stacks: nginx, Apache, PHP, MySQL/MariaDB * DBA: Postresql Patroni, MySQL InnoDB Cluster, Galera Cluster • CI/CD pipelines with GitHub Actions, GitLab CI, Bitbucket Pipelines, and Azure DevOps • Monitoring and observability using Grafana + Prometheus, Zabbix, ELK (+ APM) • Automation and scripting with Bash and Python • Virtualization platforms: VMware, Hyper-V, Xen AWS, GCP, Azure - 10+ years of experience with clouds • Perfect knowledge of SaaS services: EC2, ECR/ECS, VPC, Lambda etc. • Strong architect skills. • aws-cli, cloud, az skills. Windows Infrastructure (20+ years): • Expert in Windows Server 2003–2022, Active Directory, Group Policy, Exchange 2013–2019, and Exchange Online. • Failover Clustering, Network Load Balancing (NLB), MS SQL Server Clusters and AGs. Typical projects: • PostgreSQL Patroni HA clusters • Kubernetes production troubleshooting • ClickHouse migrations and optimization • Active Directory security audits • Hyper-V and VMware infrastructure • Disaster Recovery design and implementation • Performance optimization and incident response

I'm a certified AWS DevOps engineer with over a decade in the field. I specialize in managing and analyzing Linux/Unix enterprise servers, handling SaaS applications, containers, and various web languages through APIs, all while focusing on Docker, Kubernetes, and Terraform; also I have experience working with ML, MLOps and AI. My web language experience relies on Node.js, React, Python, Java Spring Boot, and .NET, all integrated via APIs. My expertise lies in DevOps, continuous integration, and microservices, where I leverage Kubernetes, Terraform, and CI/CD pipelines to enhance efficiency. Certifications: AWS Certified Solutions Architect – Associate AWS Certified Security – Specialty Azure Fundamentals Azure DevOps Engineer – Expert Azure AI – Fundamentals Azure Security – Fundamentals Superlative experience on: Amazon Web Services (AWS): AMAZON EC2, Amazon CloudFront, CloudFormation, S3, Amazon RDS, Amazon ELB, Amazon Auto Scaling, Amazon VPC, Route53, Amazon ECS, Fargate, Beanstalk, Lambda, AWS Code Deploy, etc. Serverless developer: API Gateway, Amazon cognito, Amazon Lambda, DynamoDB, and more. Azure: These past years I've experimented over Microsoft Azure Cloud Provider, providing support and infrastructure resources using services as Virtual Machines, Storage Accounts, SQL Flexible servers for MySQL, PostgreSQL and Microsoft SQL, App Services, Cloud Services, Function Apps, Application Gateways, DNS Zone, Container Registries, Container Instances and Kubernetes, provided manually and using ARM Templates or Terraform for IAC. Finally, I've worked on providing user management best practices using Microsoft Entra ID and Azure RBAC. DevOps:I'm dedicated to automating Infrastructure as Code, using a variety of tools to streamline my workflows. My toolkit for building and managing multitenant infrastructures includes Terraform, Docker, AWS ECS, Kubernetes, Ansible, Chef, AWS CloudFormation, and AWS Vagrant. In the realm of CI/CD, I rely on a comprehensive set of tools such as Jenkins, CircleCI, TravisCI, AWS CodeDeploy, AWS CodeCommit, AWS ECS, Bitbucket Pipelines, GitLab, and Webhooks. DevSecOps: I focus on securing digital infrastructures efficiently. I use tools like Snyk, SonarQube, Sonatype, JFrog, and Nexus for code analysis and vulnerability assessments. These tools are integrated into GitLab workflows for automated security checks. I also implement SOC2 practices to ensure robust security and compliance. Compliances: HIPAA, PCI & SOC2 Big Data and Analytics:Amazon RedShift, Airflow, AWS Glue, AWS EMR, AWS sagemaker, tensorflow, AWS Kinesis, Hadoop, Apache Spark, and Cassandra.

Based in Argentina (UTC - 3), competitive price points (low COL). Significant discounts for big projects (more than 30 hours/week). SR data engineer and data architect. Team lead at Vordentech. Personal skills •Analytical and quality-oriented. I am interested in researching best practices and creating solutions that are resilient and work in general contexts. In the long term, 5-stars systems pay off the extra effort. • Communicative. I don't like waiting for 3 days to receive a reply, so I don't do that to others. You can expect fast feedback from me, at the very least a "I'll get back to you ASAP". Also, If I think you’re wrong in you're requirements, I’ll tell you and suggest alternative solutions :) Besides, I consider myself a friendly person and approachable person, who loves to help my colleagues whenever I can! Technical skills —— Data Engineering • Expertise in Python: I ranked in the top 15% out of 1.3 million people on the LinkedIn Python assessment (see portfolio). • SQL • ETL/ELT with Python, Databricks (Pyspark), DBT, Dagster, Airbyte and a lot of AWS services. • Python Google Style Guide. • Agile, Extreme Programming (XP) & Clean Code (and Google Python Style Guide) —— Cloud/DevOps • AWS: Batch, Step Functions, Glue, Athena, Boto3, Lambda, S3, EC2, IAM, KMS, SQS, etc. • Bash. Docker + ECS. CI/CD - Github actions. Terraform, SAM, CodePipeline.

Linux developer: from kernel drivers till own browsers, firmwares and linux distros! Creating software for people. github: repu1sion