The Best Ruby Developers & Programmers For Hire In Serbia

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$60 hourly
- 5.0/5
- (7 jobs)
As a Senior AI Engineer with over 5 years of experience, I specialize in designing and implementing advanced artificial intelligence solutions that drive innovation and efficiency. My expertise encompasses machine learning, deep learning, computer vision, and natural language processing, with a strong focus on developing scalable AI models and systems. Computer vision is my strong expertise. Throughout my career, I have successfully developed AI projects from conception to deployment, delivering impactful results across various industries. My technical skills include proficiency in Python, TensorFlow, PyTorch, and other AI frameworks, as well as experience with cloud platforms like AWS, Google Cloud, and Azure for deploying AI solutions. I am committed to delivering high-quality code and innovative solutions that drive business success. Let's connect and explore how I can contribute to your next project.

Ruby
Azure OpenAI Service
Data Entry
Web Scraping
React
MongoDB
Laravel
Vue.js
Ruby on Rails
PostgreSQL
Flask
Django
Python
$35 hourly
- 5.0/5
- (8 jobs)
I'm experienced and skilled developer with vast experience in web development. I actually enjoy taking something new and complex, investigating it, breaking it down, simplifying it and acquiring a good understanding of it. I'm a dedicated, focused and highly motivated individual and a lover of clean organized code and remote work. My experience primarily covers the following technologies and frameworks. - Ruby, Ruby on Rails, Sinatra - Python, Django, Flask, Selenium, Data Science using Scikit, Pandas, Numpy, IPython, Tensorflow etc - Node, React, Angular, Vue - MySQL, PostgreSQL, Mongo, Elasticsearch, Apache Spark, AWS RDS, AWS Redshift, Redis - Linux, Ubuntu, Centos, Redhat - Jira, Basecamp, Trello - AWS Lambda, Cognito , SQS, SNS, S3, Ec2, CloudFront, ETL etc

Ruby
Angular 6
React
DevOps
MySQL Programming
MongoDB
PostgreSQL
Ruby on Rails
Django
Python
$55 hourly
- 5.0/5
- (22 jobs)
20+ years experience administering Linux systems, have a strong expertise in Bash, Python, Perl, Ruby, C, C++ and Java development. Mostly interested in finding and eliminating bottlenecks in system software, hardware, and people communications. I believe in DevOps ideals and advocate best SRE practices.

Ruby
Bash Programming
DevOps
Jenkins
Linux
MySQL
PostgreSQL
Progress Chef
Ansible
Python
$45 hourly
- 5.0/5
- (16 jobs)
Hi there 👋 I am a software engineer with over 4 years of experience specializing in designing and implementing scalable microservices architectures. I have a strong background in deploying backend solutions to cloud environments, ensuring robust performance and seamless integration. What I Offer: • Microservices Architecture: Developing efficient and scalable backend services, enabling modular and maintainable systems across various programming languages (preferably Java). • Cloud Deployments: Skilled in deploying microservices to cloud platforms, optimizing infrastructure for reliability and scalability. • CI/CD Automation: Proficient in automating build, test, and deployment pipelines using tools like GitHub Actions, Jenkins, and ArgoCD, ensuring smooth and continuous delivery within Kubernetes clusters. Key Achievements: • Maintained 14 high-traffic microservices, capable of handling over 15,000 requests per second, ensuring high performance and scalability. • Streamlined cloud deployments, reducing deployment time by 40% through automated CI/CD pipelines. • Delivered tailored solution architectures that meet specific client requirements, ensuring reliability and performance.

Ruby
Cucumber
Selenium WebDriver
Automated Testing
Apache JMeter
API Testing
Python
LangChain
TypeScript
Node.js
REST API
Web Application Development
Spring Boot
Java
Software Development
$36 hourly
- 4.7/5
- (2 jobs)
Experienced full-stack developer with expertise in building dynamic and responsive web applications. Proficient in SQL, React, Next.js, Angular, Vue.js, Javascript, and API development, focusing on creating scalable and maintainable code. Passionate about delivering high-quality results and collaborating with team members to drive project success. My expertise: - Skilled in utilizing front-end technologies like HTML, CSS, and JavaScript to create engaging and user-friendly interfaces. - Adapt at designing and optimizing database schemas, writing complex queries, and extracting valuable insights from large datasets. Experienced in developing RESTful APIs that adhere to industry best practices for secure and efficient communication using NodeJS, Laravel, Python Django backend programming languages. - Demonstrated proficiency in agile development methodologies, version control systems, and project management tools like Git. - Excellent communication skills, facilitating effective collaboration with cross-functional teams and stakeholders. - Detail-oriented and quality-focused, ensuring adherence to best practices and conducting thorough testing to ensure reliability and user satisfaction. - Passionate about security and implementing secure coding practices to mitigate vulnerabilities. Experienced in deploying applications on cloud platforms like AWS, Digital Ocean, MS Azure and Heroku. - Strong analytical and problem-solving skills, gathering and analyzing user requirements to deliver solutions that align with business goals. - Thrives in both independent and collaborative work environments, working effectively with cross-functional teams to deliver cohesive and successful projects. Hope to work with you in the near future!

Ruby
Heroku
REST API
NestJS
Python
PHP
Next.js
TypeScript
Amazon Web Services
GraphQL
MySQL
PostgreSQL
Vue.js
React
JavaScript
$70 hourly
- 4.9/5
- (26 jobs)
13+ years of full-stack experience Stack: Ruby, JavaScript, Python, Go DevOps Skills: AWS, Docker, Kubernetes Favorite Tech: Rails, React, Elastic, PostgreSQL, ClickHouse, Kafka, MongoDB Areas of Expertise: Proficient in developing large-scale, reliable applications for high-load environments. Experienced in redesigning and refactoring legacy projects, including transitioning to microservices and optimizing performance. Skilled at creating custom APIs and integrating with existing ones, including Payment, Social, EDI, and Ticketing. Well-versed in video broadcasting solutions. Adept at implementing complex search systems. Industry Experience: Online gaming Trading platforms Payment systems Marketing platforms Video platforms User review and ticketing websites Recent Projects: (Links are prohibited, but you can easily google it) Earth-2 (Game) Scompler (Marketing Platform) Show-Score (User Reviews and Tickets)

Ruby
React
Apache Kafka
ClickHouse
DevOps Engineering
RSpec
Elasticsearch
Ruby on Rails
Kubernetes
Golang
PostgreSQL
Docker
Python
MongoDB
JavaScript
$70 hourly
- 4.9/5
- (7 jobs)
Worked on many projects from scratch and with big projects already in production. Let my past work speak for itself: 1. gemnote.com (Ruby/Rails, HTML, CSS, Javascript (Angular 1.x), Stripe, Rest API) 2. zephr.com (Ruby/Rails, CSS, HTML, Javascript, Zoom API) 3. shoobs.com (Ruby/Rails, CSS, HTML, Javascript, Stripe) 4. bidsketch.com (ReactJS, Redux) 5. reefer.com (Ruby/Rails, CSS, HTML, Javascript, Stripe) 6. Orca (Javascript (Electron, VueJS), HTML, CSS, FIrebase, Social networks integration) 7. namastream.com (Ruby/Rails, HTML, CSS, Javascript, Angular 1.x) 8. protonet.com (Ruby/Rails, HTML, CSS, Rest API, Linux system, Microsoft Azure, Redis, RabitMQ) 9. findrow.com (Ruby/Rails API, HTML, CSS, ReactJS/NextJS (mobx, mobx state tree)) 10. dps.aki.do (NodeJS, ReactJS/NextJS, HTML, CSS) 11. frankforall.com (Ruby/Rails API, ReactJS/NextJS (mobx, mobx state tree), OpenPay API, React Native (Android & iOS)) 12. phixst.com (Ruby/Rails API, Stripe) ... And many more...

Ruby
Mobx
Electron
RSpec
Performance Optimization
Redux
Database Architecture
RESTful API
CSS 3
React
Ruby on Rails
JavaScript
Vue.js
$85 hourly
- 5.0/5
- (7 jobs)
I am a fullstack developer with over 10 years of experience in web. The tech stack I'm skilled in: — Ruby: Ruby on Rails, Sidekiq, Rspec, Minitest — Elixir: Phoenix, Ecto, OTP, LiveView, Oban — AWS: S3, SQS/SNS, EC2, CloudFront — Frontend: JavaScript, TypeScript, React, Vue — Databases: PostgreSQL, Redis, ElasticSearch, MeilieSearch, ClickHouse — Observability: Grafana (Loki, Mimir, Tempo), Prometheus, Kibana (ELK) — Data visualisation: D3.js — DevOps: Unix, Systemd, Cron, Docker, Ansible, Docker, AWS, — Rust: Axum, Sqlx My professional experience includes: — Working on an on-demand e-commerce delivery app in the food-tech market — Building a modern real-time team chat for the healthcare market — Working on a SaaS for marketing and SEO analytics — Designing internal system event loggers and dashboards for system monitoring — Optimizing database queries and solving concurrency-related challenges to improve application performance — Building UIs using React, Vue, and LiveView — Designing APIs for web and mobile apps I enjoy tackling challenging tasks and, above all, creating value for my clients.

Ruby
Rust
Web Development
Front-End Development
Full-Stack Development
Back-End Development
TypeScript
Phoenix
Vue.js
JavaScript
Elixir
React
Ruby on Rails
$77 hourly
- 5.0/5
- (9 jobs)
I use vim, git and write tests instead of manually opening the browser and clicking on a page. I prefer to work in a team if a project is bigger.

Ruby
Ruby on Rails
Data Entry
Linux System Administration
Data Scraping
Web Crawling
Data Extraction
JavaScript
$45 hourly
- 5.0/5
- (12 jobs)
Ruby developer with 6 years experience with Ruby/Rails development, deployment and optimization 7 years experience in Linux administration, Chef based automation.

Ruby
Bash Programming
Heroku
Ubuntu
System Automation
Progress Chef
DigitalOcean
Linux System Administration
Amazon Web Services
Ruby on Rails
$50 hourly
- 5.0/5
- (70 jobs)
I solve your technical problems for money. 13 years in Software Development. Business-awareness and holistic approach. I will not suggest you a technology just because it's cool. I will work with you to figure out what's best for your wallet, your business and your customers. Get in touch and we can discuss your project!

Ruby
Web Application
Ruby on Rails
jQuery
Database Architecture
Software Architecture & Design
React
RESTful API
PostgreSQL
API
Sass
TypeScript
Web Development
JavaScript
SQL
API Integration
$50 hourly
- 5.0/5
- (16 jobs)
I am a Solution Architect with wide experience in designing and supporting IT infrastructure. I have strong skills in: - Programming language - Java, Ruby, Go, Python, Clojure - Clouds - Google, AWS - Continuous integration - Flux, Flagger, Spinnaker, Jenkins, - Configuration management - Chef, Ansible - Stores: Apache Cassandra, PostgreSQL, ElasticSearch - Cloud platforms: Firebase Also, you can hire my Flutter team to develop mobile application your dream!

Ruby
Flutter
People Management
CI/CD Platform
RabbitMQ
Spring Framework
Docker
Application Release Automation
Ruby on Rails
Deployment Automation
Java
Google Cloud Platform
Kubernetes
$38 hourly
- 0.0/5
- (0 jobs)
Hello, This is Marko from Serbia. I am a passionate Backend developer who is familiar with Python, Django.

Ruby
Firebase
Amazon Web Services
Django
Node.js
Python
C#
ASP.NET
$50 hourly
- 0.0/5
- (0 jobs)
I'm a full stack engineer with 6 years of experience. Main Stack: web : Ruby on Rails, Python/Django, Java/Spring, .NET mobile: React Native Devops: CI/CD, Docker Agile: Scrum, Jira, Trello Git, bitbucket

Ruby
.NET Framework
Ruby on Rails
Django
Java
Python
$30 hourly
- 4.9/5
- (8 jobs)
Have worked as a senior engineer with expertise in Shopify, Python and Ruby on rails. Have developed the frontend and backend such as ecommerce, web stores, management systems, etc.,, and integrated the APIs as well. Have developed the chatbot and the chat systems using AzureAI and OpenAI, and deployed web applications on cloud servers such as GCP, Heroku, Fly.io. Have analyzed the websites and developed the scripts and systems for Web Scraping. ✅ Extensive experience: - Ecommerce: Wordpress, Laravel, Shopify, Squarespace, Webflow, UScreen, CraftCMS - Frontend: Laravel, Wordpress, Shopify, Ruby on Rails, Vue.JS - Backend: PHP, FastAPI, Flask, Django, Ruby on Rails

Ruby
Liquid
Make.com
Shopify
Django
Flask
FastAPI
Web Development
Laravel
Ruby on Rails
MySQL
PostgreSQL
PHP
JavaScript
$50 hourly
- 5.0/5
- (2 jobs)
I am a full-stack web developer who has 10+ years experience of software engineering. - Backend programming languages: Nodejs, Ruby, and PHP - Backend Framework: Ruby on Rails, Laravel, Express - Front-end programming languages: JavaScript, TypeScript, HTML5, TailwindCSS - Front-end Framework: React, Angular, Vue, SVELTE, jQuery - Databases: MySQL, PostgreSQL, MongoDB - Blockchain: Solana, EVM, Solidity, Rust programming. - Version control: Git, SVN - AWS: EC2, S3, Lambda, Amplify, EDR, MKS, Elastic Beanstalk - Linux Server Administration: DHCP, DNS, FTP, VPN, Firewall, Radius, Kerberos, NFS, SSH - DevOps: CI/CD - Jenkins, Gitlab - Project Managment: Waterfall, Agile, Scrum Please do not hesitate to contact me.

Ruby
PHP
Laravel
MongoDB
Next.js
React
JavaScript
Node.js
DevOps Engineering
Golang
Blockchain, NFT & Cryptocurrency
Back-End Development
Java
Docker
Python
$40 hourly
- 0.0/5
- (1 job)
Hi everyone. How are you? I am a senior full stack and crypto developer and AI developer. I have good knowledge of following with 3+ years working experience. - Developing GMX project on Arbitrum, BSC, Polygon and Ethereum(EVM based chains) - NFT marketplace (Polygon, BSC) - Chain Analytics (Hedera) - Chain building (Cosmos) - Ruby on Rails / Laravel MVC Web development. - Angular, React, Vue SPA front-end development. - MERN/MEAN stack development - React Native, ionic Hybrid mobile app development. - Cryptocurrency, Solidity, Rust, Web3, Defi system - Backend for MusicGeneration with Audiocraft library I am talented to learn new skills as well. I would like to work with you in great relationship. Best regards.

Ruby
Linux System Administration
Nagios Core
Network Monitoring
Back-End Development
Front-End Development
MERN Stack
NFT Marketplace
Blockchain Development
Solidity
Smart Contract
JavaScript
C#
Python
$55 hourly
- 0.0/5
- (0 jobs)
Personal Information Ivan Petrakov Senior Staff Software Engineer Belgrade, Serbia Summary Motivated and customer-oriented Ruby / Ruby on Rails architect and developer with strong conceptual and design skills. I am resultsdriven, deadline-oriented, organized, and energetic programmer with experience in back-end programming, relational databases and development, testing, DevOps, maintenance of websites. Purposeful, responsible, sociable, punctual. I learn quickly, aspire to obtain new knowledge and self-education.

Ruby
CI/CD
GitLab
GitHub
Docker
Kubernetes
HTML
JavaScript
MySQL
PostgreSQL
Ruby on Rails
$40 hourly
- 0.0/5
- (0 jobs)
Experienced Software Engineer with over 7 years in backend development, specializing in delivering high-quality, scalable web applications. Certified Scrum Master with a robust skill set in Ruby on Rails, PostgreSQL, Elasticsearch, Kafka, and Redis. Proficient in modern frontend frameworks such as Vue and React, with a keen interest in exploring tools like Go, Python and Elixir. You always need a right tool to get the job done.

Ruby
Web Application
Web Development
GraphQL
Elasticsearch
SQL
JavaScript
Ruby on Rails
$35 hourly
- 0.0/5
- (0 jobs)
Best-practice-oriented software engineer with 8+ years of experience in building well-architected web and mobile applications integrated with blockchain smart contracts. Passionate about adopting the latest technologies and trends, always seeking the best solutions and continuous learning. Skilled as both a team player and project leader, with a strong focus on developing high-performance, optimized, and structured applications.

Ruby
Laravel
Ruby on Rails
Node.js
CSS
Amazon DynamoDB
Amazon RDS
Amazon API Gateway
AWS Lambda
Amazon S3
Python
PHP
Rust
Web3
Solidity
$22 hourly
- 5.0/5
- (1 job)
I have more than 5 years experience working with Ruby on Rails as a full stack developer (Databases: PostgreSQL, Mysql, Redis, Client Side: HTML5, Twitter Bootstrap, Javascript, Coffeescript). Every day I try to be better and improve my skills. And job for me is a way to realize my full potential. Please look at my portfolio and passed tests for a decision on my employment.

Ruby
Tailwind UI
ClickHouse
Twitter/X Bootstrap
PostgreSQL Programming
Tailwind CSS
Vue.js
JavaScript
SQL
Redis
Ruby on Rails
HTML5
$40 hourly
- 0.0/5
- (0 jobs)
A QA engineer boasting nearly 20 years of experience, Dejan excels as a QA team lead, focusing on automation and manual testing across various technologies. He has a strong track record in establishing and refining QA and project processes, ensuring transparency and effectiveness. Dejan has demonstrated leadership by managing distributed QA teams and providing advanced client support.

Ruby
.NET Framework
Selenium
Automated Testing
Manual Testing
C#
JUnit
Java
Selenium WebDriver
$25 hourly
- 5.0/5
- (15 jobs)
IT enhusiast,always ready for challanges ,learning and fun! Interested in QA / Software development and test automation. Familiar with Ruby, JavaScript and Java technologies. I like open source, Linux and server side technologies. KISS is my favourite principle. Learning GoLang these days... I like big and complex things cause they keep me not bored , if is challanging than there can no be lack of fun.

Ruby
Linux System Administration
Web Service
Issue Tracking System
System Administration
Software Debugging
Bash
Automated Testing
Software QA
Selenium WebDriver
$24 hourly
- 4.9/5
- (2 jobs)
Hello there! 👋 Welcome to my profile! I’m super excited to connect with you! As a passionate Software Engineer and UX/UI designer with over a decade of experience, I’ve had the joy of building web and mobile applications from scratch. This journey has equipped me with invaluable insights into seamlessly merging cutting-edge technology with innovative design, enabling me to craft solutions that truly resonate with users. Why Choose Me? ✨ Bubble.io Mastery: I’m all about bringing ideas to life with Bubble.io! Whether you need a Minimum Viable Product (MVP) or a fully developed app, I’m here to deliver intuitive, high-performance solutions tailored to your unique business needs. 💻 Comprehensive Engineering Expertise: With a rock-solid foundation in software engineering, I shine in both frontend (React, NextJS) and backend (Ruby on Rails, Python Django, PostgreSQL) development. My approach blends technical prowess with a commitment to best practices, ensuring your application remains robust and reliable. 🎨 User-Centric Development: User experience is my top priority! Through thorough user research and thoughtful design principles, I create applications that engage and delight users while driving meaningful results for your business. 🤝 Collaborative Partnership: I believe in the magic of teamwork! I work closely with clients, keeping you updated and maintaining open communication to ensure we’re always aligned throughout the project. Services I Offer: - Custom web application development using Bubble.io - API integrations and automation - Custom web app development with Ruby on Rails and React - Custom mobile app development using React Native - Robust database design and management - User Interface (UI) and User Experience (UX) design - Ongoing support and maintenance for existing applications Let’s Connect! I’m thrilled about the chance to partner with you and bring your vision to life. If you’re looking for a dedicated expert who’s all in for your success, don’t hesitate to reach out! Let’s chat about how we can collaborate to create something truly extraordinary together! Key Skills: - Bubble.io Development - Full-Stack Software Engineering - UI/UX Design - API Integration - Agile Project Management Looking forward to connecting!

Ruby
AI Implementation
Product Management
Project Management
Startup Company
Software Architecture & Design
Database Design
SQL
MySQL
Python
Ruby on Rails
Mobile App Development
Web Development
Bubble.io
$40 hourly
- 0.0/5
- (1 job)
Rails backend developer for over five years, specializing in third-party service integration, database query optimization, legacy code refactoring, and testing. Have over one year of production elixir experience. Familiar with apache thrift, docker, AWS, and Graphql. Though not part of my professional experience, my passion is game design and development. I have been making small games and demos for about two years. When working with clients, my main focus is mutual satisfaction. I will do my best to provide you with a clean and maintainable solution that meets your requirements. I am passionate about code design and am constantly working on improving my skills and efficiency.

Ruby
API
Ruby on Rails
Elixir
RSpec
Apache Thrift
$40 hourly
- 5.0/5
- (5 jobs)
I am a Senior Full-Stack Developer for over 6 years of experience in designing and developing websites. I have rich experience in Python/Django and love to use React and Angular for SPAs. My skills are like this: - Python, Django, Flask, Celery - Node.js, Express, Sails.js, Meteor - PHP, Laravel, CodeIgniter - Ruby on Rails - React, Redux, Redux-Saga, AngularJS, Angular 2/6, - AWS(EC2, Lambda, S3, Rekogniction, CloudFormation, DynamoDB, RDS etc), Heroku, DigitalOcean - MySQL, PostgreSQL, MongoDB, Firebase - GitHub, Bitbucket, GitLab, Jira, Trello, Asana I am passionate about learning the latest and greatest technologies. I enjoy creating sleek and responsive applications in addition to being user friendly. I love working in fast paced environments. With a highly diverse educational background and cultural experiences I excel at collaborating with teams of different knowledge sets.

Ruby
Angular 5
Angular 6
Python
JavaScript
PHP
React
HTML5
Django
Node.js
$12 hourly
- 0.0/5
- (1 job)
I am goal-oriented, stress-resistant, sociable person who is ready to devote all his time to programming, and I like it.

Ruby
Software Debugging
Agile Software Development
HTTP
Java
SQL
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