A few reasons to hire me:
* Unlike a lot of great developers, I know how important it is to keep an open communication channel. There's no topic I won't discuss (as long as I know something about it :)
- My working hours are very flexible. I can usually be available with a couple of hours' notice (depending on the channel).
* I started building web applications around 27 years ago. Along the way I've picked up exposure to plenty of fields outside computer science, so when you need more than a programmer -- someone who thinks logically and analytically -- I'm your guy.
- Those 27 years also mean legacy work doesn't scare me. If you've inherited an aging PHP codebase, a jQuery-heavy frontend, or a classic LAMP stack that needs rescuing, maintaining, or migrating to something modern, that's familiar territory rather than a burden.
* I'm not just writing code. I can take a project from local dev all the way to production: containerization, orchestration, autoscaling, zero-downtime deploys, secrets management, edge/CDN setup, GitOps pipelines. If you need someone who can ship and keep things running, I cover that side too.
* I lean heavily on modern AI tooling (Claude and Codex day-to-day, Gemini when images are involved). It's a big part of why I can deliver fast without cutting corners on quality.
* My rate may seem high, but I'm efficient and I spend that time purely on planning and development. I never charge for anything not directly tied to the project (e.g. filling knowledge gaps; there's always something to learn).
In the end you're not just getting an efficient programmer (peace of mind), but also someone who'll help with the project in general. Even graphic design is less of a blocker than it used to be. It's still not my strong suit, but AI-driven workflows make decent visuals a lot more accessible these days.
PHP
Rust
TypeScript
Symfony
API Development
MySQL
PostgreSQL
Database Design
Query Optimization
Redis
Kubernetes
Terraform
Docker
Cloudflare
CI/CD
Infrastructure as Code
AI Development
LLM Prompt Engineering
Domain-Driven Design
REST API
Yahor D.
Warsaw, Poland
$50/hr
5.0
4 jobs
I'm a Senior Full-Stack Developer with strong backend experience in Laravel and a working knowledge of DevOps and frontend. I specialize in building APIs, integrating services, and deploying stable applications.
My strength is in delivering complete solutions - from database to deployment.
Currently open for part-time work (20 hrs/week) – especially backend-heavy roles that may include frontend or DevOps involvement.
Skills & Technologies:
Laravel, PHP 8, MySQL, MongoDB, RESTful APIs, PHPUnit, Docker, CI/CD, AWS, Terraform, Git, HTML/CSS, Cloudflare, Elasticsearch, Microservices.
Laravel
PHP
MySQL
MongoDB
RESTful API
Object-Oriented Programming
Amazon Web Services
Docker
CI/CD
Terraform
Git
DevOps
Microservice
Elasticsearch
Bohdan S.
Warsaw, Poland
$62/hr
5.0
15 jobs
10+ years of software engineering experience. Former UpWork employee (was laid off with 21% of the workforce).
My goal is to help you achieve more spending less time and money.
Working on Ptah.sh - Docker Swarm-based Heroku and Vercel alternative.
I have rich experience working with different technologies: from PHP & Python, through JavaScript and Go, to mobile development with React Native and Flutter.
Started multiple projects on my own:
- e-sportstats.com - where I was a CTO and led a small team of 5 engineers
- ptah.sh - Docker Swarm-based Heroku alternative where I am the sole founder and engineer
Among that, I lead various conferences and made a couple courses for internal use for the companies I've been working with.
Node.js
React
Demandware
Python
PHP
JavaScript
Java
Spring Boot
PostgreSQL
MySQL
Django
Laravel
Eugene K.
Lodz, Poland
$60/hr
5.0
36 jobs
Welcome to my profile! I’m a web development expert with more than 10 years of experience in the field.
I am keen on cutting-edge technologies and helping businesses achieve their objectives. But, as a technical expert, I also embed my unique approach to working with clients:
- Solid requirements analysis and elicitation
- Offering at least a couple of project scope realization options
- Visualization of the possible technical strategy in a format of an architecture scheme
- Preparation of the Technical Vision
Recently I’ve been involved in a bunch of Ruby, IoT, eCommerce and architecture-aimed researches as a part of my core expertise to stay in touch with new technological insights and keep my professional expertise up to the industry best practices. Besides these, here is a list of bells and whistles I can also provide:
Technologies:
- Frameworks: Ruby on Rails, Hanami, Trailblazer, DRY.rb, Django, Django REST framework (DRF), Flask, aiohttp
- Databases: PostgreSQL, MySQL, MongoDB, Redis, MariaDB, Amazon DynamoDB
- Web servers: Nginx, Apache, Caddy, uWSGI, Werkzeug
- App servers: Phusion Passenger, Puma, Unicorn
- Deployment: Docker, Docker-Compose, Docker Swarm, Ansible, Vagrant
- Testing: RSpec, Minitest, Cucumber
- Tools: VSCode, RubyMine, RuboCop
- Serverless: AWS Lambda
Domains:
- Retail
- Construction and Real Estate
- Aviation, Tourism, Travel
- Entertainment and Social networking
- Marketing and Advertising
- Fintech
- Insurance
- Industrial
- HoReCa
- Mental health and Healthcare
- Management
Project types:
- ERP, CRM, POS
- Complex web systems
- Web application
- Website
- Standalone module, Framework, SDK
- Proof of Concept
I’m open to both consultancy and development opportunities. Feel free to get in touch with me and my team if you want to discuss a web application or multi-component web platform concept, I am sure I will have valuable and interesting ideas to share with you!
webpack
Web Development
Kubernetes
Ruby on Rails
Docker
Microservice
Ruby
AWS CloudFormation
Cloud Computing
Web Service
Solution Architecture
Domain-Driven Design
Ruby on Rails Stack
Ecommerce
Web Development Consultation
Andrey Z.
Krakow, Poland
$60/hr
5.0
150 jobs
Programming experience: python, golang, bash, perl
Applications: shell scripting, web-applications, microservices, web-scraping, SQL based applications (SQLite, MySQL, Postgres, Oracle, MongoDB)
Technologies and APIs: Flask, BeautifulSoup, Scrapy, Selenium, Tornado, Google API, Dropbox API, AWS API, HTML\CSS.
My DevOps experience is related to: Ansible, Vagrant, OpenShift, Kubernetes, Docker, AWS, Packer, Terraform, Helm, Jenkins, Prometheus.
I have certifications and years of experience in:
- Google Cloud Certified - Professional Cloud Architect
- AWS Certified SysOps Administrator – Associate
- CKA: Certified Kubernetes Administrator
Worked with UNIX systems for more than 13 years: Linux OS distributions (Slackware, Debian, Ubuntu, Red Hat), HP-UX, Mac OS X and Free BSD. Managed Apache, Postgres, MySQL, Postfix, Squid, BIND, Nginx, Docker and all range of system software. Have practical experience working with AWS Cloud services.
Interested in data ETL, web apps, microservices and automation tools development.
Docker
Terraform
Python
Kubernetes
Google Cloud Platform
Ansible
Golang
Automation
Amazon Plugin
Bash Programming
Norayr B.
Warsaw, Poland
$75/hr
5.0
65 jobs
I build and engineer operational systems that remove friction, prevent cost, and keep products stable under real-world scale.
At Melio - A fintech platform processing billions in B2B payments and later acquired by Xero for $3B, I worked inside the core product systems handling real financial risk, where architectural decisions directly impact transaction reliability, cost, and scale.
At Rightway - A healthcare platform valued at $1.1B serving 500,000+ members across 850+ clients, I built product features within the care navigation system that influenced how people make healthcare decisions in real time, under strict reliability and performance constraints.
I’ve also worked on a third high-growth product in a different vertical that reached unicorn-level scale. Details are available in conversation.
This work wasn’t surface-level engineering. I was inside production systems, shipping under pressure, where failures cost money, users, and trust.
What I do
I don’t “build features.” I design systems that hold up when usage scales, requirements change, and edge cases start to dominate.
• SaaS platforms, fintech systems, healthcare products, marketplaces
Built from scratch or stabilized at scale, always focused on long-term structure, not short-term delivery.
• System architecture
Backend design that reduces dependency, removes bottlenecks, and prevents future operational breakdowns before they happen.
• AI integration in production systems
OpenAI, Gemini, and custom pipelines integrated into real workflows, not demo environments.
• Long-term product engineering
Deep involvement in product logic and business constraints. Average engagement spans 12+ months.
Tech stack
Backend: Laravel (primary), Node.js, Python, Go
Frontend: React, Next.js, Vue, TypeScript
Mobile: React Native
AI: OpenAI API, Google Gemini, LangChain
Databases: PostgreSQL, MySQL, MongoDB, Redis
Infra: AWS, GCP, Docker, Kubernetes, CI/CD pipelines
Testing: PHPUnit, Jest, Cypress, Playwright
How I work
I operate in EU timezone with overlap into US hours.
Communication is structured and predictable: daily async updates, weekly alignment.
I adapt to your workflow tools (Jira, Linear, GitHub, Slack) instead of forcing mine onto yours.
Estimates are conservative and realistic. If something takes 3 weeks, it is 3 weeks "Not a sales number".
When needed, I scale delivery through a vetted network of senior engineers I’ve worked with long-term, without compromising system integrity.
"When the Systems Work, Everything Works"
Laravel
React
Node.js
TypeScript
PHP
JavaScript
AWS Development
Vue.js
REST API
AI Development
Python
Next.js
Full-Stack Development
PostgreSQL
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