Haseeb Ahmad
Full Stack Ruby on Rails Developer
Experience
Full Stack Ruby on Rails Developer
FINLINK
- Delivered MVP for strategic enterprise client including core Links banking APIs and interest rate calculations
- Integrated German banking APIs for automated credit checks
- Built lead distribution system that improved sales team efficiency by 40%
- Developed microservices architecture for mortgage offer generation from multiple banks
- Automated document verification process for customer KYC and income validation
- Implemented GDPR-compliant consent management for customer data protection
- Deployed and managed services using Kubernetes with custom YAML configurations
- Wrote comprehensive test coverage using Rspec ensuring code reliability
- Reduced customer onboarding time by 30% through workflow optimization
Senior Full Stack Developer
BAYT
- Led the architectural transformation of yallamotor.com, serving over 3M monthly sessions, migrating to microservices with Ruby on Rails and GraphQL APIs
- Developed innovative automotive features including advanced search filters and real-time inventory management systems
- Created robust dealer dashboards facilitating inventory management and lead tracking for 500+ automotive dealers
- Streamlined payment processing by integrating various regional gateways with automated reconciliation
- Optimized performance through Redis caching and AWS infrastructure, achieving significant cost reduction and high PageSpeed scores
Back End Developer / Software Engineer
EBRYX
- Worked on multiple projects for US clients, contributing to the development of web applications using Ruby on Rails, JavaScript, HTML, and CSS
- Collaborated with cross-functional teams, including product managers, designers, and quality assurance engineers, to deliver high-quality software products
- Developed a chat application for tenants using web sockets and real-time communication technologies
- Built and maintained APIs for various projects
- Integrated with third-party APIs for payment processing, geolocation, and other services
- Implemented Devise Token Auth to enable secure authentication and authorization
- Adopted software development best practices, including agile methodologies, test-driven development, and continuous integration and deployment
Industries Experience
See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.
Experienced in Banking and Finance (4.5 years), Automotive (4.5 years), and Information Technology (1 year).
Business Areas Experience
The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.
Experienced in Information Technology (9.5 years), Product Development (9.5 years), and Quality Assurance (4.5 years).
Summary
Full stack Developer with 9 years of experience, I have a strong prociency in a wide range of technologies and tools.
Skills
Backend Frameworks: Ruby On Rails, Ruby, Fastapi, Python
Frontend Frameworks: React, Redux, Javascript, Hotwire, Html, Turbo
Deployment: Heroku, Digitalocean, Aws, Kubernetes, Docker, Fastapi Cloud, Render
Cloud Services: Aws Lambda, Aws S3, Aws Cognito, Aws Sns, Api Gateway, Ec2, Rds, Aws Lex, Aws Appsync
Database: Mysql, Postgresql, Aurora Serverless Db, Sqlalchemy Orm, Alembic
Caching: Redis, Memcache, Varnish, Page Caching
Payment Integration: Stripe Subscription, Paypal, Payfort
E-commerce Platforms: Solidus, Spree, Mirakl, Klaviyo
Api Documentation: Graphql, Swagger, Graphiql, Hasura, Pydantic
Authentication: Saml, Oauth, Jwt, Aws Cognito
Background Jobs: Sidekiq, Kafka, Delayed Jobs
Ai Tools: Hasura, Claude Code, Llm Integration
Ruby On Rails
Ruby
Rspec
Python
Mysql
Postgresql
Aws Lambda And Api
Aws
Redux
Javascript
Typescript
React
Kubernetes
Docker
Azure
Flux
Stripe
Redis
Graphql
Kafka
Sidekiq
Languages
Education
University of the Punjab
Bachelors · Software Engineering · Lahore, Pakistan · 2.9 GPA
Profile
Frequently asked questions
Do you have questions? Here you can find further information.
Where is Haseeb based?
What languages does Haseeb speak?
How many years of experience does Haseeb have?
What roles would Haseeb be best suited for?
What is Haseeb's latest experience?
What companies has Haseeb worked for in recent years?
Which industries is Haseeb most experienced in?
Which business areas is Haseeb most experienced in?
Which industries has Haseeb worked in recently?
Which business areas has Haseeb worked in recently?
What is Haseeb's education?
What is the availability of Haseeb?
What is the rate of Haseeb?
How to hire Haseeb?
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
Similar Freelancers
Discover other experts with similar qualifications and experience
Experts recently working on similar projects
Freelancers with hands-on experience in comparable project as a Full Stack Ruby on Rails Developer
Nearby freelancers
Professionals working in or nearby Berlin, Germany
