I'm a senior software engineer with 10 years of experience and I am highly skilled in designing and building enterprise-level SaaS and eCommerce applications using modern programming languages and frameworks. I possess strong expertise in building & maintaining web applications with Elixir, Phoenix, Ruby on Rails, React, and Vue.js.
Additionally, I am an innovative problem solver who employs critical thinking approaches to proactively tackle challenges across business processes and related technologies.
My responsibilities:
- Proficient in web application development, including RESTful APIs, with a strong focus on, Elixir, Ruby on Rails and Python.
- Extensive expertise in front-end development using React & Vue.js
- Deep knowledge of both SQL and NoSQL databases, including MongoDB, MySQL, and PostgreSQL.
- Skilled in developing cloud-based solutions on AWS, GCP, or Azure platforms.
- Professional experience with Git, Jira, and DevOps engineering practices.
Professional Skills:
- Ruby on Rails, Sidekiq, RSpec
- Elixir, Phoenix
- Python, Django
- React, Next.js, Redux
- Vue.js, Nuxt.js, Vuex, Vuetify
- JavaScript, Typescript
- AJAX, jQuery, HTML, CSS
- RESTful APIs, third-party APIs, Webpack
- PostgreSQL, MySQL, MongoDB
- AWS, Lambda, S3, EC2
- Heroku, Docker, DevOps, CI/CD
Elixir
Phoenix
ASP.NET MVC
Python
JavaScript
Java
Unity
Data Science
Artificial Intelligence
Phoenix Web Framework
Web Application Development
Web Application Framework
ASP.NET Web API
React
Node.js
Android
Selenium WebDriver
Azwar H.
Lahore, Pakistan
$25/hr
5.0
32 jobs
Are you building a fast, fault-tolerant, and scalable backend with Elixir? Need a reliable Phoenix developer to bring your MVP to life or scale your existing product? You've found the right expert.
With over a decade of backend engineering experience, I specialize in Elixir, Phoenix, LiveView, Ecto, GenServer, and OTP. I’ve helped numerous startups go from 0 to 1, and also improved and maintained complex, high-traffic applications in production.
💼 Featured Projects:
Healthdesk.ai – AI-powered healthcare platform using Elixir and LiveView.
Eden.pm – Real-time project management with collaborative task tracking.
AfricanManagers.com – Learning & HR tools for African enterprises.
SentinelsNetwork.com – Secure alert system with real-time messaging.
Eventlify.com – Event management and ticketing built for scale.
🛠️ Core Expertise:
-Elixir / Phoenix / LiveView
-GenServer, OTP, and concurrency patterns
-Ecto, Postgres, and performance tuning
-Real-time features & WebSocket integration
-Architecting MVPs and scaling production systems
-DevOps integration (CI/CD, Docker, releases)
💡 What I Offer:
-MVP development for early-stage startups
-Backend architecture consultation
-Phoenix LiveView UI engineering
-System debugging, optimization, and refactoring
-Long-term support & maintenance
Clients value me for being proactive, fast, and reliable, with a deep understanding of Elixir and real-world product development.
Let’s talk about how I can help you build or scale your Elixir-based product!
Elixir
API Integration
Web Development
AngularJS
Python
React Native
PHP
Node.js
React
Flutter
Laravel
Vuex
PostgreSQL Programming
DevOps
Vue.js
NodeJS Framework
API Development
Haris S.
Lahore, Pakistan
$25/hr
4.4
19 jobs
I am an accomplished Software Engineer with nearly four years of hands-on experience in the development, deployment, and dockerization of full-stack applications, along with proficient maintenance of existing systems. My primary expertise lies in Elixir/Phoenix, and I have successfully contributed to projects such as Linkly, KiwiSkips, and Glass. Additionally, I bring valuable experience in React, Node.js/Express, and RoR.
My Elixir projects showcase my ability to deliver high-quality solutions. Notable contributions include Lumachain.io and Chain API, demonstrating my dedication to creating robust and scalable applications. On the RoR front, I have made impactful contributions to projects like khapto.com, saplinghr.com, and lumachain.io, showcasing versatility across different technology stacks.
As a dedicated hobbyist app developer, I have honed my skills in Postgres, MySQL, HTML5, CSS, and Javascript. I am committed to continuous learning, consistently adapting to new stacks to enrich my expertise and broaden my experience as a software engineer.
In addition to my proficiency in application development, I possess experience in Data Visualization and Data Analysis, leveraging technologies such as Python and R. My tenure at the Australian Data Science Education Institute involved the development of the backend framework for a Data Science Visualization Project tailored for children, highlighting my ability to contribute to innovative and impactful initiatives.
I am enthusiastic about bringing my technical acumen, adaptability, and passion for continuous learning to contribute effectively to your team. I am confident that my diverse skill set and experience make me a valuable candidate for your organization.
Elixir
Erlang
RESTful API
JavaScript
Next.js
PostgreSQL
Node.js
Web Application
NodeJS Framework
CSS
Ruby on Rails
Angular
HTML
React
Tailwind CSS
Muhammad T.
Lahore, Pakistan
$35/hr
5.0
36 jobs
I help startups and SaaS teams build fast, scalable web applications. If you're dealing with slow APIs, messy backend code, or need a reliable developer to build things properly from day one, I can help.
🔶SENIOR FULL-STACK SOFTWARE ENGINEER
🔶Experience: 8+ YEARS
🔶SPECIALIZATION:
🔹 Delivering enterprise-grade web applications.
🔹High-performance platforms using the MERN and MEAN stacks (Node.js, React, Angular, Express).
🔹High-concurrency backend development using GOLANG and ELIXIR (PHOENIX).
🔹Data-heavy applications that require flawless performance, real-time capabilities, and microservices architecture.
With advanced capabilities in AI/ML integration & IoT, I ensure your applications are not just functional, but future-proof. I have successfully architected systems handling millions of users, focusing on complex queries, indexing, caching, and rock-solid security.
CORE COMPETENCIES & SERVICES:
🔸 High-Volume Web Apps:
Complete end-to-end development of Single Page Applications (SPAs) & complex web platforms using MERN and MEAN stacks.
🔸 High-Concurrency Backend Systems:
Architecting highly scalable, fault-tolerant backend systems using Golang and Elixir/Erlang (OTP).
🔸 API & Integrations:
Building and consuming robust RESTful and GraphQL APIs, alongside complex third-party integrations (Stripe, PayPal, Segment).
🔸 AI/ML & Data Science:
Integrating Artificial Intelligence and Machine Learning models (NLP, Computer Vision, Chatbots, Big Data Analytics) directly into your web applications using Python, TensorFlow, and PyTorch.
🔸 Architecture & DevOps:
Implementing CI/CD pipelines, Docker, Kubernetes, AWS infrastructure, and IoT Core backends (via MQTT).
🔸 Team Leadership:
Capable of working independently, integrating seamlessly into existing teams, or leading and managing a development team for your project.
TECHNICAL STACK:
🔹 Front-End:
JavaScript, TypeScript, React.js, Angular.js, Vue.js, HTML5, CSS3, Tailwind CSS, Bootstrap.
🔹 Back-End (Primary):
Node.js, Express.js.
🔹 Back-End (High-Concurrency):
Golang, Elixir (Phoenix, Ecto, Absinthe).
🔹 Databases:
PostgreSQL, MongoDB, MySQL, Redis.
🔹 AI / Data Science:
Python, TensorFlow, PyTorch, Pandas, Scikit-Learn.
🔹 Infrastructure & Tools:
AWS, Docker, Kubernetes, Git, CI/CD, OAuth 2.0, WebSockets.
CLIENT-FRIENDLY PRACTICES I GUARANTEE:
🔸 Open Communication:
I prioritize frequent updates, prompt responses, and transparent progress reports.
🔸 Strict Confidentiality:
fully willing to sign an NDA before we begin discussions.
🔸 Total Ownership:
All deliverables, source code, and related assets belong exclusively to you from day one.
🔸 Clean, Maintainable Code:
I adhere strictly to TDD (Test-Driven Development), common design patterns, and industry best practices to ensure your codebase is scalable and easy to maintain long after the project ends.
I am an excellent fit if you lack technical expertise and need a developer who can take full ownership of the architecture, or if you are simply tired of sifting through inexperienced developers and want it done right the first time.
MY DEVELOPMENT PROCESS
To ensure a seamless, stress-free experience, I follow a strict, battle-tested workflow for every project:
1. Architecture & Discovery:
Before writing a single line of code, we define the exact scope, map out the database schema (PostgreSQL/MongoDB), and select the optimal stack (MERN, Golang, or Elixir) tailored strictly to your scalability needs.
2. Agile Execution:
You will never be left in the dark. I provide transparent updates through agile sprints, so you always know exactly what is being built and tested.
3. Robust QA & Automated Testing:
I heavily utilize Test-Driven Development (TDD) and CI/CD pipelines. This ensures every new feature is rigorously tested and deployed without breaking your existing system.
FREQUENTLY ASKED QUESTIONS
🔹Can you rescue or optimize an existing codebase?
Absolutely.
🔹How do we handle timezone differences?
I maintain flexible working hours, deliberately overlapping with your timezone to ensure we have windows for real-time communication.
Keywords:
MERN Stack Developer, MEAN Stack Developer, Node.js Developer, React.js Developer, Angular.js Developer, Express.js, Full Stack Web Developer, Frontend Engineer, Backend Developer (Golang), Go Engineer, Golang Engineer, Golang Architect, Full Stack Developer, Web Developer, Software Engineer, Node.js Developer, Senior Node.js Developer, MEAN Stack, MEAN Stack Developer, Senior MEAN Stack Developer, MERN Stack Developer, AI Integration, Full Stack Elixir Developer, Golang, Go Developer, Backend Developer, Backend Engineer, Full Stack Developer, Software Engineer, Microservices, API Development, REST API, System Design, Distributed Systems, High Performance Systems, Low Latency Systems, Concurrency, GCP, Google Cloud Platform, AWS, Cloud Functions, Docker, Linux, CI/CD, Node.js, NestJS, Elixir, Phoenix LiveView, PostgreSQL, SQL, Supabase.
Elixir
Phoenix
Node.js
React
Golang
JavaScript
Angular
MongoDB
ExpressJS
Next.js
Amazon Web Services
Google Cloud Platform
Azure DevOps
MERN Stack
MEAN Stack
Asad A.
Lahore, Pakistan
$30/hr
5.0
2 jobs
Is your SaaS backend struggling to scale? Are your APIs brittle, your billing workflows unreliable, or your frontend and backend disconnected?
I am a Full Stack Software Engineer with 5+ years of experience building production SaaS applications. My core expertise spans Elixir (Phoenix / PETAL stack), Ruby on Rails, React, and Next.js, giving me the ability to own full product layers without losing depth on either end.
I work best with startups and product teams that need strong backend ownership, clean API design, and capable frontend delivery — all from one engineer.
WHAT I BRING TO YOUR PROJECT
Backend and Architecture
- Scalable SaaS backend architecture
- Multi-tenant system design (subdomain-based isolation)
- REST API and GraphQL API development
- Subscription lifecycle and billing workflow automation
- Background job systems (Oban, Sidekiq)
- Real-time features (Phoenix LiveView, WebSockets)
- PostgreSQL performance optimization
- Test-driven development (RSpec, ExUnit)
Frontend and Full Stack
- React: component-driven UI, state management, API integration
- Next.js: SSR, SSG, App Router, API routes, SEO optimization
- Phoenix LiveView: real-time UI with minimal JS overhead
- GraphQL client-side data interactions
Integrations
- QuickBooks, Zendesk, Yardi, Resman
- RabbitMQ asynchronous workflows
- Third-party API service layers
ELIXIR AND PHOENIX PROJECTS
Billing Manager — SaaS Subscription Engine
Stack: Elixir, Phoenix, PostgreSQL, Oban
Designed and maintained a full subscription lifecycle engine covering invoicing, recurring billing, payment tracking, and financial reporting. Focused on audit safety, reliability, and operational efficiency.
Appwork — Property Management SaaS
Stack: Elixir, Phoenix, React, PostgreSQL, Oban
Implemented multi-tenant architecture with subdomain-based isolation, built REST APIs for web and mobile clients, integrated Yardi, Resman, and Zendesk, and improved automated test coverage in a TDD environment.
Vendorful — E-Procurement CRM
Stack: Phoenix LiveView, React, GraphQL, RabbitMQ, PostgreSQL
Implemented a hybrid React and LiveView architecture, reduced frontend rendering overhead, built GraphQL data interactions, and designed asynchronous workflows using RabbitMQ.
RUBY ON RAILS PROJECTS
Minute7 — Time and Expense Management
Stack: Ruby on Rails, Sidekiq, PostgreSQL
Built real-time QuickBooks financial data synchronization using service-layer integrations and Sidekiq background processing. Maintained clean modular Rails architecture with full RSpec test coverage.
JoinEight — AI Recruitment Platform
Stack: Ruby on Rails, React, PostgreSQL
Developed backend APIs for AI-powered candidate matching, implemented React frontend components, and supported agile feature delivery in a competitive product environment.
Other Rails work: MapleHR (Employee Management SaaS), Authorea (Research Publishing Platform)
REACT AND NEXT.JS
My frontend work is directly integrated with the backend systems I build.
React: Built component-driven UIs connected to REST and GraphQL backends across multiple SaaS products including Appwork, JoinEight, and Vendorful.
Next.js: Experienced with SSR, SSG, App Router, API routes, and building SEO-optimized, production-ready web applications.
Comfortable managing state, authentication flows, and integrating React or Next.js frontends with Elixir or Rails backends.
WHY WORK WITH ME
I take full ownership of my work, not just assigned tickets. I write clean, tested, and well-documented code built for long-term maintainability. I communicate clearly, keep projects moving, and bring both backend depth and frontend capability so you do not need two engineers for one product.
If you are building or scaling a SaaS product and need a reliable full stack engineer with real backend seriousness, let us talk.
Elixir
API Integration
Phoenix
RESTful API
React
GraphQL
Node.js
TypeScript
JavaScript
Ruby on Rails
Next.js
MongoDB
HTML
REST API
PostgreSQL
PostgreSQL Programming
RabbitMQ
SaaS
RSpec
Full-Stack Development
Muhammad N.
Lahore, Pakistan
$30/hr
5.0
9 jobs
🚀 Building or scaling a SaaS product? I help businesses deliver fast, scalable, and maintainable web applications using React, Node.js, Go, and Elixir.
🔍 Are you a founder or an engineering lead looking to build a production-ready platform that scales from day one? I help businesses take complex ideas from concept to successful launch—without the drama, missed deadlines, or communication gaps.
💻 With over 6 years of experience, I bring "Big Tech" engineering standards to your startup or enterprise. Whether you need a rapid MVP built on the MERN/MEAN stack or a high-concurrency, microservices-driven system using GOLANG and ELIXIR, I don't just write code—I engineer scalable business solutions.
🤝 WHAT YOU GET WHEN WE PARTNER:
➡️ Transparent Delivery:
Daily updates, short feedback loops, and clear communication. Zero "black box" development.
➡️ Clean, Maintainable Code:
Heavy emphasis on proper database design, typed languages, and scalable architecture so your next team can easily understand and extend the product.
➡️ Post-Launch Reliability:
I don't just ship and disappear. I provide runbooks, monitoring setups, and pragmatic post-launch support to ensure your platform stays stable.
➡️ Fast Start:
Day-one environment setup and a small, risk-free first milestone to prove value immediately.
🚀 CORE SERVICES & USE CASES:
💠 Product Development:
Custom SaaS Development, MVP Development, Web Application Development.
💠 System Architecture:
Microservices, Event-Driven Systems, High-Concurrency Backends, Database Optimization.
💠 API Engineering:
RESTful APIs, GraphQL, Third-Party API Integrations (Stripe, Twilio, OpenAI/LLMs, etc.).
💠 Real-Time Systems:
WebSockets, Chat Applications, Live Tracking Dashboards.
🛠 MY TECHNICAL ARSENAL:
➡️ Full-Stack Ecosystems:
MERN Stack, MEAN Stack
➡️ Backend & APIs:
Node.js (Express.js, Nest.js), Golang (Gin, Fiber), Elixir (Phoenix, LiveView), Python.
➡️ Frontend Development:
React.js, Next.js, Angular.js, TypeScript, JavaScript (ES6+), Tailwind CSS.
➡️ Databases:
PostgreSQL, MongoDB, Redis, Elasticsearch.
➡️ DevOps & Cloud:
AWS, GCP, Docker, Kubernetes, CI/CD Pipelines, Serverless Architecture.
Skip the endless scrolling through unreliable profiles. Send me a message today with a brief overview of your project, and let’s outline a clear, actionable roadmap for your first milestone.
⌨ 𝗞𝗲𝘆 𝗪𝗼𝗿𝗱𝘀:
Elixir, OTP, Beam, Go, Gin, Phoenix Framework, LiveView, Surface, Drab, Cowboy, Ecto, GraphQL, Nerves, GenServer, Supervisor, Task, Ecto, PostgreSQL, MySQL, MongoDB, Redis, Riak, Golang, Dart, Full-Stack Developer, ReactJS, TypeScript, JavaScript, jQuery, Angular, AWS, Google Cloud Platform, Docker, MEAN Stack, MERN Stack, Front-End Development, HTML5, CSS3, Bootstrap, Azure, DevOps, Kubernetes, WebSockets, SEO-Friendly Web Development, Cross-Platform Development, Next.js, Express.js, Vue.js, React.js development, React frameworks, Git, Tailwind CSS, SASS, SCSS, Gitlab, Gulp, Webpack, Figma, Responsive Design, Cross browser compatibility, Nuxt.js, GitHub, Elixir, Golang, Phoenix Framework, LiveView, Node.js, Gin, Nest.js, GraphQL, PostgreSQL, MongoDB, Redis, Kafka, RabbitMQ, AWS Lambda, Kubernetes, Terraform, AI Chatbots, Machine Learning, LLMs, NLP, OpenAI, FinTech, Healthcare AI, SaaS Development, API Development, DevOps, CI/CD, Docker, Cloud Computing, Microservices, WebSockets, Agile, React, Next.js, Vue.js, TypeScript, Tailwind CSS, Stripe, Twilio, AI Automation, Cloud Infrastructure, Serverless Computing.
Elixir
API Integration
Web Development
Back-End Development
Golang
Node.js
Python
React
MongoDB
PostgreSQL
TypeScript
Angular
Vue.js
Full-Stack Development
Front-End Development
ExpressJS
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