You will get Expert Backend Developer | Python Django Flask | Scalable Web Apps
Project details
Need a reliable backend developer to build or scale your web application? I specialize in developing secure, high-performance backend systems using Python, Django, and Flask. I create clean, scalable APIs and backend architectures that support real-world applications and growing user bases.
Whether you are launching a new SaaS product or improving an existing system, I can design and develop REST APIs, implement authentication systems, and optimize performance for speed and reliability. I also work with Nuxt.js for frontend integration, ensuring smooth communication between frontend and backend.
My expertise includes database design (PostgreSQL, MySQL), API integrations, performance optimization, and deploying applications on cloud platforms. I focus on writing maintainable code, improving system scalability, and delivering production-ready solutions tailored to your business needs.
Whether you are launching a new SaaS product or improving an existing system, I can design and develop REST APIs, implement authentication systems, and optimize performance for speed and reliability. I also work with Nuxt.js for frontend integration, ensuring smooth communication between frontend and backend.
My expertise includes database design (PostgreSQL, MySQL), API integrations, performance optimization, and deploying applications on cloud platforms. I focus on writing maintainable code, improving system scalability, and delivering production-ready solutions tailored to your business needs.
What's included $145
These options are included with the project scope.
$145
- Delivery Time 3 days
- Number of Revisions 3
About Aashir
Senior Backend Engineer | Laravel | Node.js | AWS | Scalable API | PHP
Glen Ellyn, United States - 10:08 pm local time
Are you struggling with slow APIs, scaling issues, payment failures, or backend systems that break under load?
These problems can hurt your user experience, reduce revenue, and slow down your business growth.
I help startups and businesses build fast, secure, and scalable backend systems that handle high traffic, process payments reliably, and stay stable at scale.
With 6+ years of experience, I’ve:
✔ Built systems for 20M+ users
✔ Improved API performance by 30%+
✔ Handled 60K+ concurrent users
✔ Delivered payment systems processing 35K+ daily transactions
✔ Achieved 99.95% uptime
➤ 𝗘𝗫𝗣𝗘𝗥𝗧𝗜𝗦𝗘
✔ Scalable backend architecture
✔ REST API & microservices design
✔ High-performance system optimization
✔ Payment systems & integrations
✔ Cloud-native development (AWS)
✔ Secure authentication & authorization
✔ Distributed systems & async processing
✔ Logging, monitoring & debugging
➤ 𝗦𝗞𝗜𝗟𝗟𝗦
✔ Laravel, FastAPI (Python)
✔ JavaScript, TypeScript, PHP, Python
✔ MySQL, PostgreSQL, MongoDB
✔ Node.js (NestJS, Express.js)
✔ Redis (caching), Elasticsearch
✔ AWS (S3, EC2, RDS, SQS, SNS, OpenSearch)
✔ CI/CD (Jenkins), Git
✔ OOP, System Design
➤ 𝗦𝗘𝗥𝗩𝗜𝗖𝗘𝗦
✔ Build scalable REST APIs from scratch
✔ Fix slow or broken backend systems
✔ Design microservices architecture
✔ Integrate payment gateways (Stripe, CyberSource, RAAST, PayFast)
✔ Optimize database & API performance
✔ Implement caching (Redis)
✔ Setup AWS infrastructure & deployments
✔ Build SaaS backend systems
✔ Background jobs & queue systems (SQS/SNS)
➤ 𝗪𝗢𝗥𝗞𝗜𝗡𝗚 𝗘𝗫𝗣𝗘𝗥𝗜𝗘𝗡𝗖𝗘
✔ 6+ years of backend development
✔ Systems serving 20M+ users
✔ 60K+ peak concurrency handling
✔ 35K+ daily payment transactions
✔ Reduced DB load by 50% (Redis caching)
✔ Processed 500K+ background jobs/month
✔ Centralized 5M+ logs/month (ELK Stack)
✔ Led team of 10+ engineers
✔ Improved uptime to 99.95%
➤𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗬
✔ Fintech
✔ SaaS
✔ E-commerce
✔ Government systems
✔ Subscription platforms
✔ Enterprise applications
➤ 𝗗𝗢𝗠𝗔𝗜𝗡
✔ Payment gateways & billing systems
✔ Subscription-based platforms
✔ QR & real-time payments (RAAST, 1Link)
✔ ERP systems
✔ Employee benefits platforms
✔ Digital media systems
➤ 𝗧𝗢𝗢𝗟𝗦
✔ AWS (S3, EC2, RDS, SQS, SNS, OpenSearch, ElastiCache)
✔ Redis, Elasticsearch
✔ Jenkins, CI/CD pipelines
✔ ELK Stack (logging & monitoring)
✔ Git (version control)
✔ REST API tools (Postman, Swagger)
➤𝗪𝗛𝗬 𝗠𝗘
✔ Proven experience with high-scale systems
✔ Clean, maintainable & production-ready code
✔ Strong focus on performance & security
✔ Fast communication & reliable delivery
✔ Real business impact, not just code
➤ 𝗟𝗘𝗧’𝗦 𝗪𝗢𝗥𝗞 𝗧𝗢𝗚𝗘𝗧𝗛𝗘𝗥
If you need a backend engineer who can scale your system, fix performance issues, and build reliable APIs, I’m ready to help.
📩 Send me a message — let’s discuss your project.
🔹𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀
backend developer, node js developer, laravel developer, fastapi developer, aws developer, microservices, rest api development, scalable backend, api developer, nestjs developer, express js, php developer, python backend, typescript developer, system design, cloud architecture, payment integration, stripe integration, cybersource, raast, payfast, redis caching, elasticsearch, mysql, postgresql, mongodb, backend optimization, api performance, high traffic systems, saas backend, fintech developer, devops, ci cd, aws sqs sns, backend engineer, secure api development
Steps for completing your project
After purchasing the project, send requirements so Aashir can start the project.
Delivery time starts when Aashir receives requirements from you.
Aashir works on your project following the steps below.
Revisions may occur after the delivery date.
Client purchases the project and sends requirements.