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  • $50 hourly
    • 5.0/5
    • (26 jobs)
    I'm the founder of Sirin Software, a Florida-based R&D company with a development center in Kyiv, Ukraine. My team and I, comprising more than 40 software developers, work with embedded systems, IoT products, and Web3 applications. We have extensive experience in hardware design and software development. Core values: Solution-Centric Approach: We focus on solving problems and contributing to product concepts—we're more than just coders. Honesty: We never overpromise. Client Satisfaction: Delivering 5-star client experiences is our top priority, as reflected in real client reviews. Our main areas of expertise include: Embedded Linux: Device Drivers, BSPs, Yocto, Buildroot, OpenWRT Wired and Wireless Networking (WiFi, Bluetooth, ZigBee/Z-Wave, LoRaWAN, and more) Bare-metal and RTOS-based firmware for ARM and RISC-V (STM32, ESP32, nRF52, etc.) Cybersecurity: Network monitoring, intrusion detection Web3: Ethereum and Solana blockchain solutions Our hard skills (not limited to) include: C, C++, Python, Rust, Golang, JS/TS, Node.js, React.js, AWS, GCP, and MS Azure.
    Featured Skill Bash Shell Scripting
    Android App Development
    Bash Programming
    Microsoft Azure
    Node.js
    OpenWrt
    iOS Development
    C++
    Embedded System
    Embedded Linux
    C
  • $60 hourly
    • 5.0/5
    • (58 jobs)
    I am an experienced and certified System Administrator with +15 years of experience in system design, monitoring, management, networking and many other IT fields. Skills: • Operating Systems: Windows servers(2003 – 2026, SBS2011) and clients (XP-11), Unix, Linux, Mac OS X • Clouds: Azure, AWS • Development: Java, Jenkins, Wildfly, Websphere, GitHub, Terraform • Microsoft applications: Active Directory, Exchange, CA/PKI, S/MIME, GPO, Office365 • NAS/SAN arrays, software/hardware, iSCSI/FC • Database Systems: SQL Server, MySQL, MsSQL • Scripting: Powershell, BAT, bash • Applications: CA arcserve, SolarWinds, PRTG, CCM, SCOM • Network: Cisco devices (switches, routers, firewalls PIX and ASA, APs), Juniper (router), STP, Vlans, VTP, Ubiquiti Wlan solution, port security features and 802.11 protection solution, IPv6, syslog, netflow • Protocols: SNMP, SMTP, NTP, POP3, HTTP, HTTP(s), SSH, Telnet, Radius, LDAP, DHCP, DNS • Languages: C, C++, Html, Php, Xml • Virtualization: Hyper-V, VmWare, XenServer • VoIP: Asterisk, Skype For Business, MS Teams, SIP, RTC • Security: SSL, IMAPS, POP3S, HTTPS, IDS, IPS, network scanning • Cisco certifications: CCNA, Passed Cisco exams: Cisco 640-802, 642-902, 642-813 • MS certification: MCP, MCTS: Win Srv 2008 AD, MCTS: Win Srv 2008 Network infrastructure, AWS Certified Cloud Practitioner, AWS Certified Developer - Associate, HashiCorp Certified: Terraform Associate
    Featured Skill Bash Shell Scripting
    AWS Server Migration
    Database Administration
    Bash Programming
    Cloudflare
    Terraform
    AWS Development
    AWS CodeDeploy
    AWS CodeBuild
    Linux
    Microsoft Server
    Cisco Certified Network Associate
    Network Administration
  • $40 hourly
    • 4.7/5
    • (18 jobs)
    Web site support and administration, Linux administration, Supercomputer design, HPC Cluster management systems, Lustre parallel storage systems. I provide Computing cluster / Render Farm with node following characteristics: 2 x Intel Xeon E5-2670 @ 2.6 GHz 16 cores 64 GB ECC RAM 3 x NVidia Tesla M2075 Infiniband FDR 56 Gbit/s Price starts form $75 node/month via Upwork.
    Featured Skill Bash Shell Scripting
    Linux
    Perl Catalyst
    3D Rendering
    Bash Programming
    Linux System Administration
    RAID Administration
    CentOS
    Cluster Computing
    NGINX
    MySQL
  • $40 hourly
    • 4.8/5
    • (9 jobs)
    Hi, I am a Systems Engineer with DevOps background and 6-year experience in the area. My main skills are: * Amazon Web Services (EC2, Lambda, Config, IAM, S3, CloudWatch, CloudFormation). * Terraform * Python (AWS Lambda + Python automation tasks using Boto3 library, Jenkins + Python system scripts). * SQL queries for MySQL and Oracle RDB. * Bash scripting.
    Featured Skill Bash Shell Scripting
    DevOps
    Bash Programming
    AWS CloudFormation
    AWS Lambda
    Elasticsearch
    GitLab
    Linux
    Docker
    Python
    Terraform
    Amazon Web Services
    Jenkins
    Git
  • $50 hourly
    • 5.0/5
    • (10 jobs)
    🌟 Upwork TOP RATED 🌟 450 Upwork hours with 100% Job Success Score ✅ 12 Years of Professional Experience ✅ AWS - 10+ Years experience ✅ Azure - 5 Years experience ✅ GCP - 5 Years experience ✅ Kubernetes (Azure AKS, Amazon EKS and Google GKE) Expert ✅ DevOps Expert ✅ Cloud consulting, cost optimization ✅ Infrastructure as Code (Terraform, Cloud Formation) Specialist ✅ Cloud Logistics, Migration and Automation Expert I'm a result-driven DevOps Expert & Cloud Solutions Architect with over 12 years of experience. My passion is to build automation processes and optimize cloud platforms to provide business value for client. I’m ready to help with AWS/GCP/Azure/on-prem architecture design and implementation, cost optimization, containerization and orchestration, CI/CD automation, IaC implementation, setting up monitoring and alerting solutions, disaster recovery and meeting compliance standards and getting certifications (PCI DSS, HIPPA, GDPR, ISO). At Gart, I lead a team of DevOps professionals. We are originally a Ukrainian DevOps service company, and I always treat all projects as if they were my own team. I am constantly prepared to think outside the box in order to achieve business goals. Our service offering includes, but is not limited to: → Architecture design and implementation (AWS, GCP, Azure, on-premise) → Cloud computing and migration services → Infrastructure cost optimization → CI/CD automation and acceleration of development teams → Meeting compliance standards and obtaining certifications (PCI DSS, HIPAA, GDPR, ISO) → Infrastructure reliability, monitoring, observability, incident management, and backup disaster recovery The main tech stack: 🔷 Cloud platforms: AWS, GCP, Azure, Digital Ocean, Hetzner, etc. 🔷 CI/CD automation: Jenkins, GitHub Actions, GitlabCI, CircleCI, Terraform, AWS Pipeline, 🔷 Containerization and orchestration: Kubernetes, Docker, OpenShift, Rancher, Helm 🔷 Infrastructure-as-a-code: Terraform, Ansible, AWS CloudFormation, Azure Resource Manager 🔷 Monitoring: Zabbix, Nagios, Icinga, Collectd, Grafana, Graphite, Logstash, Kibana, Prometheus, Datadog, NewRelic. 🔷 Scripting: Java(Groovy), Bash, Python, Ruby 🔷 Databases: Microsoft SQL, MySQL, PostgreSQL, MariaDB; MongoDB, Redis, Memcache ... 🔷 Version control system: Git 📩 Please don’t hesitate to send your projects details. I'd be glad to start with the free technical consultation to discuss your project in detail and come up with ideas on how to build everything in the best way.
    Featured Skill Bash Shell Scripting
    Grafana
    Infrastructure as Code
    Bash Programming
    Terraform
    Cloud Migration
    Google Cloud Platform
    Prometheus
    Cloud Architecture
    Microsoft Azure
    Kubernetes
    Docker
    Deployment Automation
    CI/CD
    Amazon Web Services
    DevOps
  • $35 hourly
    • 5.0/5
    • (4 jobs)
    Has experience in Front-end development, especially with React.js library and React Native framework. Has good knowledge of JavaScript and libraries that help create better and responsive web and mobile apps. Has worked on projects that had the scope in IoT and Firebase as BaaS. I am constantly improving myself with learning something new and ready for new challenging projects. Markup languages: HTML, CSS, SASS Programming languages: JavaScript Libraries and Frameworks: Bootstrap, React.js, React Native, Next.js, Material UI, Ant Design, Redux, Redux Saga, Redux Thunk Databases: Firebase, MySQL, MongoDB Other: Webpack, Network technologies Tracking Systems: Jira, Redmine, Trello Tools: Git, VS Code, React DevTools, Redux DevTools, ESlint, Prettier, React Native, Debugger, Flow OS: Windows, Linux, MacOS
    Featured Skill Bash Shell Scripting
    macOS
    Redux
    React Native
    Bash Programming
    Linux
    React
    Jest
    HTML5
    CSS 3
    JavaScript
  • $60 hourly
    • 5.0/5
    • (5 jobs)
    14+ years in IT sphere (both existing projects and startups). Technology was always my passion, that's why when others told me that something is impossible I still managed to prove the opposite and build those things. I started my career as a freelancer in 2010 and in 2015 I've become a head of development and co-owner of the USA-based startup (sales engagement SaaS tool with lead-generation & workflow automation CRM). Another my notable experience was the creation of web-fingerprinting app (for protection against credit card fraud) which I developed as a part of a private project for a well known IT-giant. Having experience in backend software engineering and REST API architecture, my main specialization right now is Software Architect. My favs: Go (6+ years) and PHP (13+ years). As for other technologies please check the "Other Experiences " section below. My tools: tmux+vim & git ;)
    Featured Skill Bash Shell Scripting
    DNS
    Linux
    Bash Programming
    Hugo
    Domain Migration
    Cloudflare
    API Development
    Database Design
    Database
    RESTful API
    SQL
    CodeIgniter
    Git
    PHP
    Golang
  • $40 hourly
    • 5.0/5
    • (4 jobs)
    For more than five years I've been supporting the development of PHP based web applications and deploying them to various hosting solutions, from shared web to dedicated servers. My skillset: - extensive LAMP/LEMP stack knowledge - shell scripting for automation - experience with a wide variety of web hosting solutions: shared web hosting providers, turnkey server setups, VPS, etc. - Ansible for server setup automation - system for service management and automation - Amazon Web Services: ec2, s3, RDS, EFS, Elasticashe - experience in Linux server diagnostics and optimization Expert areas: - DevOps (Azure | GCP | AWS | Kubernetes), Kubernetes (AKS, IKS, GCP, EKS, DOKS), CI/CD, Azure DevOps, Azure, GCP, AWS Languages and SDKs I have worked on: PHP, JS, Bash, Python Other Technologies: Docker, Kubernetes, Git, Shell, Firebase, Ansible, Nagios Software / Applications I have created in the past: - Online Admission System - Online Examination Portal - Vehicle Tracking System - Learning management system
    Featured Skill Bash Shell Scripting
    Fedora
    Ansible
    MySQL
    CentOS
    Bash Programming
    Python
    NGINX
    Ubuntu
    Linux
    Azure DevOps
    AWS Development
    CI/CD
    Kubernetes
    LEMP Stack
    LAMP Stack
  • $45 hourly
    • 5.0/5
    • (6 jobs)
    💪𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞𝐝 𝐃𝐞𝐯𝐎𝐩𝐬 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 𝐰𝐢𝐭𝐡 𝟏𝟐+ 𝐘𝐞𝐚𝐫𝐬 𝐨𝐟 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 Hi! 👋 I'm a seasoned DevOps engineer specializing in CI/CD automation, cloud infrastructure management, and continuous integration/deployment. My goal is to streamline development workflows, enhance system reliability, and ensure fast, smooth deployments in modern cloud environments. ✅ Automation & Scripting: Crafting efficient automation scripts with Ansible, Bash, Python, and other DevOps tools. ✅ CI/CD & Deployment: Expertise in CI/CD pipelines, automated deployments, and containerization with Docker, Kubernetes (AWS EKS, GKE, AKS, etc.), and cloud services. ✅ Infrastructure as Code (IaC): Implementing Infrastructure as Code using Terraform, CloudFormation, Docker, and Kubernetes clusters for scalable environments. ✅ Cloud Expertise: Proficient with AWS, Azure, Google Cloud Platform (GCP), DigitalOcean, and other cloud computing platforms, ensuring optimal resource usage and cost-efficiency. ✅ Monitoring & Troubleshooting: Implementing system monitoring, alerting, and troubleshooting solutions using Prometheus, Grafana, Zabbix, and other DevOps monitoring tools to ensure system health and minimize downtime. Why Choose Me? ✅ Proven Experience as DevOps: Over a decade of hands-on experience across various industries and DevOps projects. ✅ Automation-First Approach: I focus on automating repetitive tasks and optimizing development workflows, freeing teams to innovate and accelerate delivery. ✅ Problem-Solving Mindset: Passionate about solving complex problems and implementing effective DevOps solutions. ✅ Cutting-Edge Practices: Staying updated with microservices architecture, containerization technologies like Docker and Kubernetes,A WS cloud-native practices, and the latest DevOps tools and trends. ☺️ ꜰᴇᴇᴅʙᴀᴄᴋ ᴏꜰ ᴛʜᴇ ꜱᴡɪᴍ ᴛʀᴀᴄᴋɪɴɢ ᴘʟᴀᴛꜰᴏʀᴍ: 💯 ɪᴍᴘʟᴇᴍᴇɴᴛɪɴɢ ʀᴏʙᴜꜱᴛ ᴅᴇᴠᴏᴘꜱ ᴘɪᴘᴇʟɪɴᴇꜱ ɪɴᴄʀᴇᴀꜱᴇᴅ ᴏᴜʀ ᴅᴇᴘʟᴏʏᴍᴇɴᴛ ꜰʀᴇǫᴜᴇɴᴄʏ ʙʏ 𝟦𝟢%, ᴀʟʟᴏᴡɪɴɢ ᴜꜱ ᴛᴏ ʀᴇʟᴇᴀꜱᴇ ᴜᴘᴅᴀᴛᴇꜱ ᴀɴᴅ ɴᴇᴡ ꜰᴇᴀᴛᴜʀᴇꜱ ᴍᴏʀᴇ ʀᴀᴘɪᴅʟʏ. ᴛʜᴇ ᴄᴏɴᴛɪɴᴜᴏᴜꜱ ɪɴᴛᴇɢʀᴀᴛɪᴏɴ ꜱᴇᴛᴜᴘ ᴀʟꜱᴏ ʀᴇᴅᴜᴄᴇᴅ ᴅᴇᴘʟᴏʏᴍᴇɴᴛ-ʀᴇʟᴀᴛᴇᴅ ᴇʀʀᴏʀꜱ ʙʏ 𝟤𝟧%. Let’s collaborate to enhance your DevOps pipelines, optimize your cloud infrastructure, and improve your system reliability! 🔑 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬 𝐭𝐨 𝐟𝐢𝐧𝐝 𝐦𝐞: DevOps Engineer | AWS Developer | Kubernetes | Docker | Ci/CD | GCP | DevOps | AWS | Amazon Cloud | GCP| Google Cloud Platform | Digital Ocean| Alibaba Cloud | Azure | Docker | Kubernetes | Docker-Swarm | ECS | Elastic Container Service | CI/CD | Nginx Apache2 |Prometheus | Grafana | Alertmanager | AWS CloudWatch | NewRelic | Zabbix | Gitlab | Gitlab CI | Github | Bitbucket |Jenkins | Groovy | Bash | Python | Ansible, Linux Operating Systems: CentOS, Ubuntu, Debian, Fedora | Linux Administration | Infrastructure | Web-Server | Networking | OpenShift | Monitoring | Logging
    Featured Skill Bash Shell Scripting
    Google Cloud Platform
    Terraform
    Amazon ECS
    Bash Programming
    CI/CD
    Linux System Administration
    Containerization
    Database
    Kubernetes
    Continuous Integration
    NGINX
    Docker
    Amazon Web Services
    AWS Development
    DevOps
  • $35 hourly
    • 5.0/5
    • (5 jobs)
    I am a seasoned Network Software Engineer with extensive expertise in high-performance networking, system architecture, and infrastructure optimization. My career spans critical projects involving 4G/5G core network development, high-throughput packet processing, QoS control, and the integration of cutting-edge technologies like nDPI, SD-WAN, NFV, and advanced security tools (e.g., Aircrack-ng). I excel at optimizing and scaling complex platforms, including NGINX and Apache, to ensure reliability, speed, and security. In recent years, I have focused on DevOps, Site Reliability Engineering (SRE), and full-stack website development within leading CDN environments. My work emphasizes automated scalability, fault tolerance, continuous integration/deployment (CI/CD), and end-to-end performance monitoring. With a passion for solving complex challenges and delivering robust solutions, I am eager to bring my multi-faceted expertise to your project. Core Skills : - Networking & Telecommunications : 4G/5G core development, High-Throughput Packet processing, QoS Control, SD-WAN, NFV, nDPI - Security & Optimization : Aircrack-ng, Nginx/Apach Optimization, CDN Security and Performance Tuning - DevOps & SRE : C1/CD pipelines, Docker, Kubernetes, Terraform, Ansible, Prometheus, Grafana - Full-Stack Development : HTML/CSS/JavaScript, Python, Node.js, SQL/NoSQL, CDN Integration & Web performance optimization - Cloud & Virtualization : AWS, GCP, VPN, OpenStack & VMware
    Featured Skill Bash Shell Scripting
    Java
    Bash Programming
    Lua
    Python
    Qt Creator
    OpenResty
    WiFi
    Rust
    C++
    C
    NGINX
    Grafana
    DevOps
    Computer Network
    Computing & Networking
  • $41 hourly
    • 5.0/5
    • (19 jobs)
    25+ years working experience in IT industry. 15+ years of designing, implementation, testing, releasing, and documenting plenty of full life cycle business applications in desktop/client-server/REST/multi-tier/RDBMS/intranet/Internet environment. 12+ years of technical writing, EN-RU/RU-EN/EN-UA/UA-EN translation, and scientific/literary editing. 10+ years of developing and deploying software CAD/CAM systems.
    Featured Skill Bash Shell Scripting
    Ruby
    SQL
    Unix Shell
    Bash Programming
    Jenkins
    C++
    Apache Groovy
    Java
  • $80 hourly
    • 5.0/5
    • (16 jobs)
    objective
    Featured Skill Bash Shell Scripting
    Oracle PLSQL
    Bash Programming
    Greenplum
    Relational Database
    Data Warehousing
    ETL
    MySQL
    SQL
    Database Design
    PostgreSQL
  • $40 hourly
    • 5.0/5
    • (4 jobs)
    Have 14 years of programming experience. And 6 years of successfully work as freelancer on vworker, then elance and now upwork. Know C/C++, PHP, MySQL,JavaScript, Python, Visual Basic, C#, ASP, Bash scripting, HTML,CSS etc
    Featured Skill Bash Shell Scripting
    MySQL
    HTML5
    Apex
    C++
    Web Development
    Bash Programming
    WordPress
    Linux System Administration
    PHP
    Python
  • $50 hourly
    • 5.0/5
    • (36 jobs)
    Skilled DevOps and System Administrator ready to work! I have experience in the implementation of different projects, setting up from the scratch, CI/CD processes, migration, tuning, optimization, maintenance/troubleshooting etc systems of various complexity (from simple website to project with more than 100k community such as dingit tv). DevOps and System Administration is not just job for me, it is something more, from a hobby at a young age it has grown into a passion. In recent years, I have great pleasure in doing DevOps and System Administration, I devote for this profession most of my time. I have great experience in: Platforms: Linux (RHEL / CentOS, Ubuntu Server / Debian, Slackware), Windows Server 2003/2008/2012 DevOps: GIT, Jenkins, Docker, Ansible, Icinga, Terraform, Kubernetes Network solutions: Mikrotik RouterOS, heartbeat, drbd, GlusterFS Web Server: Apache, NGINX Databases: MySQL, PostgreSQL Mail: Dovecot, Postfix Virtualization: Xen, KVM, MS HyperV Cloud Technologies: Amazon Web Services (AWS), OpenStack Security tools: iptables, squid, VPN, OpenSSL Hosting panels : Plesk, whm\cPanel, DirectAdmin Additional skills: experience with bacula/BackupPC, experience with MS AD (~1000 clients hosts), GPO writing bash, sed/awk bases, raid technology, LVM knowledge
    Featured Skill Bash Shell Scripting
    Ansible
    Docker
    ELK Stack
    Terraform
    Prometheus
    Jenkins
    Bash Programming
    Git
    Network Administration
    DevOps
    Linux System Administration
    Kubernetes
    Amazon Web Services
  • $60 hourly
    • 5.0/5
    • (11 jobs)
    I'm a DevOps - Solution Architect with 7 + years of hands-on experience and a strong background in team management. Certifications: 📌 AWS Certified Solutions Architect – Professional 📌 AWS Certified Solutions Architect – Associate I'm recognized for my precision in planning, relentless pursuit of process improvement, and unwavering commitment to operational excellence. My collaborative approach involves close collaboration with cross-functional teams to align our efforts with project objectives and consistently deliver outstanding results. Expertise: - Designing and optimizing intricate cloud-based solutions - Skillfully orchestrating seamless CI/CD pipelines - Mastering the art of infrastructure cost optimization - Ensuring the high availability and scalability of mission-critical applications - Implementing industry-leading DevOps best practices - Guiding and mentoring DevOps teams to achieve excellence Let's connect to discuss how I can contribute to your success.
    Featured Skill Bash Shell Scripting
    Docker Compose
    Prometheus
    Bash Programming
    OpenShift
    Scripting
    Python
    CI/CD
    Infrastructure as Code
    Terraform
    Google Cloud Platform
    Docker
    Java
    Amazon Web Services
    Bash
    Kubernetes
  • $80 hourly
    • 5.0/5
    • (19 jobs)
    🚀 Senior Software Engineer | iOS, macOS, visionOS | Swift, Objective-C, C++ | AR, AI 🔹 10+ Years of Experience | Master's in AI & Bachelor's in CS | PhD Researcher in Applied Linguistics Passionate software engineer with 10+ years of professional experience in developing high-quality applications for iOS, macOS, visionOS, Windows, and Linux. I specialize in Swift, C, C++, Objective-C, Objective-C++, and Rust programming languages building efficient, scalable, and maintainable solutions. Holding a Master’s degree in Artificial Intelligence and currently pursuing a PhD in Applied Linguistics, where I research OCR for handwritten texts, I bring a unique combination of AI, NLP, and software engineering expertise to projects involving text recognition and automation. 🛠 Tech Stack & Expertise 🔹 Programming Languages 💻 Swift | Objective-C | Objective-C++ | C++ | C | Rust 🔹 Development Tools 🔧 Xcode | Instruments | Terminal | Qt Creator | MS Visual Studio | VS Code 🔹 Architectures & Design Patterns 📐 MVC | MVVM | MVVM+Coordinator | VIPER | TCA | UDF 🔹 iOS/macOS Frameworks & Technologies 📱 UIKit | SwiftUI | Combine | Observation | AVFoundation | CoreFoundation | CoreGraphics | CoreData | CoreBluetooth | CoreLocation | MapKit | PushKit | CallKit | WidgetKit | XCTest | SPM 🔗 Third-party: Realm | RxSwift | SQLite | Alamofire | WebRTC | Twilio | Vonage | Firebase | AWS | Stripe | Google Maps | MapBox | Cocoapods 🔹 Networking & Communication 🌐 TCP/IP | OSI | REST API | GraphQL | WebSockets | VOIP | WebRTC 🔹 Databases & Storage 🗄 MySQL | SQLite | CoreData | SwiftData | Realm 🔹 C++ Libraries ⚙ Qt | Boost | STL 🔹 Scripting & Automation 📜 Bash | Fastlane 🔹 Operating Systems 📂 iOS | macOS | visionOS | Android | Windows | Linux (Ubuntu, CentOS) 🔹 CI/CD & Version Control 🔄 Git | GitFlow | SVN | Jenkins | TestFlight | Fastlane | CircleCI | Github actions 🔹 Project Management & Collaboration 📌 JIRA | Trello | Redmine 🔹 UML & Software Design 📊 UML diagrams for system architecture 🔹 Languages 🗣 Ukrainian (Native) | English (Fluent, C1 - CAE Certified) I’m excited to collaborate on challenging projects and build innovative software solutions. Let’s discuss how I can help bring your vision to life! 💬 Let’s Connect!
    Featured Skill Bash Shell Scripting
    Code Review
    Software Architecture & Design
    Software Consultation
    Cross Functional Team Leadership
    Bash Programming
    Cocoa API
    Mac OS App Development
    Qt Framework
    SQL
    RxSwift
    iOS Development
    Swift
    C++
    C
    Objective-C
  • $50 hourly
    • 5.0/5
    • (65 jobs)
    Hey there! I’m a Full-Stack Developer specializing in building high-performance web and mobile applications. With a focus on seamless user experiences and scalable architectures, I turn complex ideas into beautifully crafted solutions. 💼 $400K+ earned | 145+ successful projects | Top Rated Freelancer 🛠 What I Do Best: Custom Web Applications – Scalable and maintainable solutions tailored to your business needs. Cross-Platform Mobile Apps – High-performance apps using React Native and Flutter for iOS and Android. Backend Architectures – Reliable and efficient backend systems with Node.js and Express. Real-Time Applications – WebSocket integration for live updates, messaging, and interactive experiences. Cloud Solutions & DevOps – Scalable cloud infrastructure on AWS and Google Cloud, CI/CD pipelines. 🔥 Tech Stack That Delivers Results: 🖥️ Frontend Mastery In React.js – 9 years In Next.js – 7 years In Vue.js – 6 years In TypeScript – 8 years In Tailwind CSS / Material-UI – 7 years ⚙️ Backend Powerhouse In Node.js – 10 years In Express.js – 9 years In MongoDB – 8 years In PostgreSQL / MySQL – 9 years In GraphQL – 7 years In RESTful APIs – 10 years 📱 Mobile Excellence In React Native – 8 years In Flutter – 7 years In SWIFT – 7 years In Kotlin – 6 years ☁️ Cloud & DevOps Solutions In AWS (EC2, Lambda, S3) – 9 years In Google Cloud – 8 years In Docker / Kubernetes – 9 years In CI/CD Pipelines – 6 years 🏆 Cool Projects I’ve Delivered: E-commerce Platform – Built a custom web and mobile solution with integrated payment systems, handling 100K+ daily users. Healthcare App – Developed a cross-platform mobile app with real-time chat and appointment scheduling for millions of users. SaaS Dashboard – Created a scalable admin dashboard with complex data visualizations and real-time analytics. Social Media App – Implemented a React Native app with live messaging, push notifications, and media sharing. 🚀 Why You Should Work With Me: 10+ years of Full-Stack Development – Proven track record in delivering robust and scalable solutions. Cross-Platform Expertise – Unified codebases with React Native and Flutter for iOS and Android. Performance-Driven Architecture – Fast, reliable, and maintainable systems with clean, modular code. Client-Centric Approach – I prioritize your business goals and ensure seamless communication throughout the project. All-in-One Solution – From frontend UI/UX to backend infrastructure and cloud deployment, I handle everything. 💡 Ready to build your next big project? Hit the Invite button, and let’s make it happen! 🚀 🔑 Skills & Technologies: Full-Stack Development React.js / Next.js / Vue.js React Native / Flutter Node.js / Express.js MongoDB / PostgreSQL / MySQL RESTful APIs / GraphQL TypeScript / JavaScript Tailwind CSS / Material-UI AWS / Google Cloud Docker / Kubernetes CI/CD Pipelines Cross-Platform Mobile Development
    Featured Skill Bash Shell Scripting
    Mobile App Development
    Windows Administration
    Web Development
    Bash Programming
    Virtualization
    Swift
    Angular
    Terraform
    Node.js
    Load Balancing
    Kotlin
    React Native
    DevOps
    .NET Core
    Amazon Web Services
    Linux System Administration
    Docker
    React
    Network Administration
    Symfony
    Laravel
    Service Cloud Administration
    Kubernetes
  • $50 hourly
    • 5.0/5
    • (17 jobs)
    Experienced, effective, proactive Software Engineer 👨‍💻 More than eight years of enterprise experience in developing modern distributed software systems ⚙️ My expertise mainly focuses on the latest Java Backend stack: Spring, Kafka, Postgres, Kubernetes, and Docker. Besides, I've delivered many various projects - my skill box is pretty packed. I'm mindful of details, OCD with clean code principles. My code is refactored and sharp, my tests are green and comprehensive. My goal is not to get the job done but to get the job done right. I am new here, so I'll go the extra mile to exceed clients' expectations. GitHub: github.com/shumyk Medium: medium.com/@sh.umyk
    Featured Skill Bash Shell Scripting
    Microservice
    JavaScript
    JUnit
    Integration Testing
    PostgreSQL
    RabbitMQ
    NoSQL Database
    SQL
    Java
    Spring Framework
    Apache Kafka
    Docker
    Bash Programming
    Golang
    Kubernetes
  • $15 hourly
    • 4.9/5
    • (7 jobs)
    Сontainerization and virtualization: - Docker, Kubernetes - Vmware - Hyper-V Proxy: - Squid Monitoring system: - Prometeus - Nagios - Grafana Data collection: - Telegraf Voip: - Asterisk Router: - Microtik - Pfsense Linux: - Centos, Debian, Coreos, Ubuntu - Iptables, config network, nginx, httpd, etc... - Writing scripts on python, bash - Ansible - Scrape web Database: - InfluxDB - Mysql - Postgresql Windows: - Windows Server 2008, 2012 (DNS, AD, DHCP, GPO) - Writing scripts shell - Microsoft Exchange 2013 Servers: - Configuring the servers Dell r230, r330, r430 Backup system: - Bacula - Rsync
    Featured Skill Bash Shell Scripting
    Prometheus
    Linux System Administration
    Asterisk
    Elastix
    Grafana
    VMware ESX Server
    Bash Programming
    Elasticsearch
    Python
    Ansible
  • $35 hourly
    • 5.0/5
    • (2 jobs)
    I am experienced Backend Developer with 9 years in the Web Application Development, I have been developing web apps since 2010 and my primary skills are: DevOps: Docker (compose, machine, swarm), Nginx, Apache HTTPD, Digital Ocean, Scaleway, InfluxDB, Telegraf Dev Tools: Composer, npm, yarn, Grunt, Gulp, Git (GitLab, Github, Bitbucket), pipenv, pip, maven, gradle DB and tools: MySQL, Postgres, MongoDB, Redis, RabbitMQ, ElasticSearch, AWS S3 Backend: PHP 5.6+, Python (3+), REST API, OAuth, Django, aiohttp, tornado Methodologies: SOLID, TDD, SCRUM
    Featured Skill Bash Shell Scripting
    Docker
    SSL
    Git
    DevOps
    MySQL Programming
    CI/CD
    Linux System Administration
    PostgreSQL Programming
    Bash Programming
    Python
  • $25 hourly
    • 5.0/5
    • (5 jobs)
    Experiance: 06/2002 - 05/2012 C++ and PHP programming and website development. Participate in, and contribute to the development of technical/business approaches and/or the recommendation of current system enhancements Configuring and installing Cpanel, DirectAdmin, ISPManager, Webmin, Apache, Nginx, IIS web servers, Mysql, MariaDB, MS SQL, mongodb Work with high-load projects, search for bottlenecks and speed up their work using server settings. PHP, JavaScript, css, html, c++ 05/2009 - present Script design and development Work closely and team with Developers Act as a subject matter expert for troubleshooting and resolving complex, multi-tier web problems that span a number of different platforms Working knowledge of standard Unix infrastructure tools/protocols. (DNS, NTP, SYSLOG, SSH, HTTP, Iptables etc.) Security incident response and perform necessary deep investigation and compromise containment Deploy and manage automated security services and third party solutions Automation of various web hosting tasks (bash for linux and powershell for windows). Design and development of tools to automate security or security reporting tasks Support ongoing and new security/compliance initiatives Search and elimination of errors in web applications, analysis of server logs and application logs. Traffic monitoring and analysis of web application logs and search for possible threats. Nagios, Cacti, Icinga Education: Master's Degree in Computer Science Skills Strong desire to eliminate ambiguity and produce predictability Good written and verbal communication skills Working in high-availability, 24x7x365 large-scale multi-data center environment Strong communication skills, both verbal and written in a large team environment PKI and Key Management knowledge and experience Ability to drive consensus and foster collaboration Basic cross-functional understanding of network engineering concepts and protocols (e.g., TCP, UDP, SSL, VLAN, BGP, etc.) Working knowledge of standard Unix infrastructure tools/protocols (HTTP, DHCP, DNS, SYSLOG, SSH, IPSec etc.) Extensive experience in administering openvz and HyperV, less kvm and xen servers. Experience with networking equipment: Juniper, Extreem Networks (BGP configuration, firewall rules, static routing). Strong analytical capabilities
    Featured Skill Bash Shell Scripting
    SSL
    Postfix SMTP Server
    Microsoft Hyper-V Server
    Kernel-based Virtual Machine
    System Administration
    Ubuntu
    OpenVZ
    Microsoft Windows PowerShell
    Bash Programming
    Cloudflare
    Microsoft IIS
    MySQL
    PHP
    Apache HTTP Server
    NGINX
  • $15 hourly
    • 4.9/5
    • (7 jobs)
    Category: - Mobile Apps Skills: * Xcode, * Swift * Objective-C * iOS(iPhone/iPad) - development * Multi iOS versions support * Fix memory leaks * Fix bugs * Performance improvement Category: - Application Interface Design - Engineering & Technical Design Skills: * MacOS, iOS(iPhone/iPad) UI/UX - user interface any difficulty. Architecture of user interface design. Category: - Scripts & Utilities: Skills: * bash-shell-scripting - for basic automatization of build process * javascript - to improve user experience with WebView. Category: - Software QA Skills: * software design * coding * source code control * code reviewing * testing
    Featured Skill Bash Shell Scripting
    macOS
    iOS SDK
    Smartphone
    Apple Xcode
    Objective-C
    Swift
    Bug Fix
    iOS
    iPad App Development
    iOS Development
    Mac OS App Development
    iPad UI Design
    Software Debugging
    Bash Programming
  • $20 hourly
    • 5.0/5
    • (2 jobs)
    Do you need a programmer with strong knowledge of mathematical algorithms? For ongoing huge projects or simple tasks? Let me help you! 📍I have 5 years of programming experience, so I will do my best to offer you the best solution. The main language I use in my work is Python. I can create anything with it - from a small script that shows how one probability distribution differs from the second, expected probability distribution, to a pseudo 3d game like Doom with artificial intelligence enemies. However, I also have experience writing programs in other languages such as C++, C and Haxe. I also really enjoy working with Linux and Bash scripts for it. 📍Why me? I am really interested in programming, so I will always try to find the best way to solve your assignment! My tools: - Python (NumPy, SciPy, Requests, Flask, Pyllow, TensorFlow, PyTorch) - Bash/Shell/AWK - C++ - C - Qt Looking forward to helping you realize your wonderful projects. Sincerely, Viktoriia Slipukhina
    Featured Skill Bash Shell Scripting
    Qt Framework
    Data Science
    Unix Shell
    API
    Bash Programming
    Haxe
    Python-Requests
    AI Bot
    C++
    Python
  • $30 hourly
    • 5.0/5
    • (1 job)
    I'm into open source software. Like to hack it and customize for my own needs. That's what I'm fallen in love with GNU/Linux for.
    Featured Skill Bash Shell Scripting
    Vim
    Lua
    Python
    Arch Linux
    Linux
    Bash Programming
    Bash
    C
    C++
    C++/CLI
    Script
    Scripting
    Desktop Application
  • $45 hourly
    • 0.0/5
    • (1 job)
    I am IT engineer with experience more then 15 years. Can help you to build your service or infrastructure depending on your needs. Work with different operating systems, network and cloud solutions. Have a big experience in automatisation of processes, configuring all you need for best practices in your business.
    Featured Skill Bash Shell Scripting
    Computing & Networking
    Problem Solving
    DevOps
    Information Security
    Network Engineering
    Computer Network
    Microsoft Windows PowerShell
    Bash Programming
    Python
    Windows Administration
    Linux System Administration
  • $40 hourly
    • 0.0/5
    • (0 jobs)
    🚀 I help businesses streamline and scale their infrastructure by automating deployments, managing servers, and optimizing cloud and on-prem systems. Click the «𝐈𝐍𝐕𝐈𝐓𝐄» button. Let's schedule a free call! 🔧 With hands-on experience in Linux system administration, Docker, CI/CD pipelines, Terraform, Kubernetes, and scripting in Bash/Python — I build efficient, secure, and scalable DevOps solutions. 🛠 Services I offer: — Linux & Windows system administration — Docker containerization — CI/CD pipeline setup (Jenkins, GitHub Actions) — Infrastructure as Code with Terraform — Kubernetes cluster deployment and management — Web server configuration (Nginx, Apache) — Bash and Python scripting for automation — Network and virtualization management — Telegram bot development for automation, notifications, and integrations (Python) 💬 Let’s discuss your project. Click the "Invite" button to start a conversation and get expert help today! Best wishes, Oleksii Shafarenko.
    Featured Skill Bash Shell Scripting
    Terraform
    Kubernetes
    Jenkins
    CI/CD
    Apache Administration
    DevOps
    NGINX
    Virtualization
    Network Administration
    Windows Administration
    Git
    Docker
    Python Script
    Bash Programming
    Linux System Administration
  • $15 hourly
    • 4.9/5
    • (70 jobs)
    I am working as a developer for large telecom companies since 2007 and have experience in such fields as databases (Oracle and others), data processing/analysis using standard libraries or implementing custom ones. I mostly work with Python, shell scripting, and Linux. I am going to provide an efficient suitable solution for each task related to development. I tend to do my job perfectly and make the solutions work for you.
    Featured Skill Bash Shell Scripting
    API Development
    Telegram API
    Database Design
    Software Architecture & Design
    RESTful API
    GraphQL
    Bash Programming
    SQL
    Application Integration
    Database
    JSON
    Data Scraping
    Scripting
    Automation
    Python
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