Hire the Best Solaris Administrators
in Ukraine

Database design, SQL, C/C++, Java, Oracle, MySQL, and MS SQL Server - all this are my areas of expertise. Over the last 30 years I have developed a lot of desktop and server side business applications using C, C++, Java, SQL, PL/SQL, T-SQL languages for customers from all over the world. I am trying constantly improve my skills and learning some new fashionable tools and technologies. Currently I am learning Golong and I like it. Also I have great experience in developing enterprise-scale applications using relational databases. I can do for you full-cycle applications development - from business analysis to end-user support. Let me assure that overwhelming majority of successful projects during my 12-years freelancer career is a good reason to hire me. My resume available on request. Sincerely, Nick Mukhin

I'm UNIX/Linux System Administrator and DevOps engineer with 20 years experience. I have in setting up and managing servers, optimizing them for best performance and security aspects. I have expertise with setting up baremetal servers of various brands via IP KVM, IPMI, DELL DRAC, HP ILO. I'm working with virtualization platforms such as - VMWare, XEN, KVM, Microsoft Hyper-V, VirtualBOX. I'm working with cloud solutions as Amazon AWS, Google Cloud, Microsoft Azure I have set up and manage web servers using Apache/NGINX, configure HA clusters by using NGINX, Haproxy. The database servers administration MySQL, MariaDB, Percona, Oracle. Also, I have strong knowledge and experience with Windows Server various editions and Windows Dekstop platforms (Windows 10/11) I have great knowledge and strong experience with VPN technologies OpenVPN, PPTP, L2TP, IPSec, Wireguard. Very good knowledge and experience in troubleshooting.

Seeking opportunities in Java/Perl/Python oriented development, shell scripting, BSD/Linux administration - to support your business. Java: Spring, Hibernate Perl: Catalyst/Mojo/Dancer, DBIx::Class Python: Django, FastAPI, SQLAlchemy DB: Postgres, MySQL/MariaDB On-hand experience with regular expressions (regexp), REST, and AJAX. I can work well alone and as a team member.

I'm developing PC and mobile games for about 20 years in various companies. Switched from network/system administrator profile in 2004. * Occassionally working on non-gamedev projects too. * Worked with many common game engines - Unity, Unreal, GoDot. * With Unity I have the most deep and fresh knowledge. * Also very interested in learning Unreal more deeper, and other engines, systems, SDKs as well. * Experience in supporting and updating legacy mobile games with in-house C++ game engines. * I'm new here at Upwork but have a solid background working in companies, usually at least 2 years in each. * I'm thorough to details, diligent and always open to communication and discussing questions openly.

Senior Project Manager with 7+ years of experience delivering solar, wind, and BESS projects across Ukrainian market. Strong background managing projects from early development through RTB, construction readiness, and COD, including scope definition, scheduling, budgeting (CAPEX/DEVEX), risk management, and stakeholder coordination. Proven ability to manage multi-disciplinary teams, contractors, grid operators (DSO/TSO), investors, and advisors, delivering complex renewable energy projects on time and within budget.

🚀 Scaling issues? Slow queries? Unstable deployments? I help SaaS platforms scale reliably, optimize infrastructure, and deploy with confidence. 📅 20+ years of experience 📦 70+ completed infrastructure & DevOps projects ⚡ Systems handling millions of requests monthly 💰 Helped clients reduce infrastructure costs by up to 45% 🚀 Improved deployment speed by 60% with automated CI/CD pipelines I’m a DevOps Engineer, AWS architect, cloud engineer, and AWS devops specialist focused on building high-performance, scalable cloud infrastructure for SaaS platforms, enterprise systems, and high-load applications. I work with startups and growing businesses to eliminate bottlenecks, optimize databases, stabilize deployments, and improve infrastructure reliability. I have strong hands-on experience with aws, Google Cloud, and Azure environments, including infrastructure automation, monitoring, container orchestration, disaster recovery, and production scaling. I also work as an azure devops engineer, building automated deployment pipelines and improving release workflows for scalable SaaS systems. My background also includes gcp devops environments for cloud-native applications and high-availability infrastructure. 🎯 Database & Performance Expertise I specialize in MySQL, PostgreSQL, MS SQL, MongoDB, Oracle, and high-load database optimization, including: • Query tuning & indexing strategies • Performance optimization • Backup & disaster recovery • Replication & high availability • Oracle RAC & Data Guard • Database scaling & monitoring I’ve optimized systems processing 200K+ events daily while reducing query execution time by up to 70%. 🎯 DevOps, Cloud & Infrastructure As an AWS architect and cloud engineer, I design and manage scalable cloud environments using: • AWS • Azure • Google Cloud • Docker • kubernetes • Terraform • Jenkins • GitHub Actions • GitLab CI/CD • n8n I build secure, automated infrastructure with Infrastructure as Code (Terraform), scalable deployment pipelines, and containerized environments optimized for reliability and performance. I also work with wordpress devops workflows including server optimization, deployment automation, CDN configuration, caching, scaling, and security hardening for high-traffic WordPress platforms. Additionally, I have experience with python devops environments, supporting Python-based APIs, automation systems, backend services, CI/CD workflows, containerization, and cloud deployment pipelines. 💡 What I Can Help You With • AWS devops & cloud infrastructure • CI/CD pipeline setup & automation • Docker & kubernetes orchestration • Infrastructure as Code with Terraform • Monitoring & observability systems • Database optimization & scaling • Backup, recovery & disaster planning • High-load SaaS infrastructure • Linux server administration • Production deployment optimization • Cloud migration & infrastructure modernization 💻 Infrastructure & System Administration • Linux, Unix, Windows Server administration • Oracle, PostgreSQL, MySQL, MongoDB, MSSQL administration • Active Directory setup & maintenance • RDS Apps & VDI environments • Apache, Nginx, CPanel, CentOS environments • Monitoring systems: Zabbix, Nagios, Splunk, Grafana • Cloud services: AWS, Azure, GCP • Kubernetes cluster management • Jenkins & automated deployment workflows • n8n ⚡ Results Delivered • Reduced downtime by 80% through infrastructure hardening • Improved deployment reliability across multiple SaaS products • Reduced cloud costs by 30–45% through infrastructure optimization • Automated CI/CD workflows reducing release cycles from hours to minutes • Built scalable environments supporting 100K+ active users I bridge the gap between infrastructure, backend systems, databases, and cloud architecture — helping teams ship faster while keeping systems stable, scalable, and secure. 👉 If your platform is growing — or struggling under production load — I’ll help you stabilize, optimize, and scale it for long-term reliability and growth. ⚙️ Core Expertise / Keywords AWS Architect, AWS DevOps, Cloud Engineer, Azure DevOps, Azure DevOps Engineer, GCP DevOps, Kubernetes, Terraform, DevOps Engineer, n8n, Docker, AWS, GCP, Cloud Infrastructure, Oracle DBA, PostgreSQL, MySQL, MongoDB, Performance Tuning, Query Optimization, Infrastructure as Code, Jenkins, GitHub Actions, Linux Administration, SaaS Infrastructure, Scalability, High Availability, Monitoring, Automation, Reliability Engineering