I will develop backend api, microservices, python, node js, java spring boot


About this gig
I design backend systems that hold up at real scale - architected by someone who has done it for a platform serving over a million users.
10 years as Principal Software Engineer and Solutions Architect across banking, healthcare, telecom, risk and compliance.
WHAT I BUILD
- Backend APIs in Java Spring Boot, Node.js and Python
- Microservices architecture and system design
- REST and GraphQL API development
- Event-driven systems with Kafka
- Database design, migration and query optimisation
- Authentication, authorisation and security hardening
- Caching, performance tuning and load testing
- Docker, Kubernetes and CI/CD pipelines
- Architecture review of your existing system
- Legacy system modernisation
SELECTED WORK
Architected a national healthcare platform now serving 1M+ users. Designed the microservices behind Lumify360, an enterprise risk platform. Cut NielsenIQ delivery cycles by 70%.
STACK
Java, Spring Boot, Node.js, Python, Django, Kafka, Redis, Postgres, MySQL, MongoDB, Docker, Kubernetes, AWS, Azure, GCP
If it has to survive growth or audits, message me first.
Get to know Muhammad Waqas
AI Agent Engineer, Head of AI Product Dev, Enterprise Architect
- FromPakistan
- Member sinceMay 2019
- Avg. response time1 hour
- Last delivery2 years
Languages
Urdu, English
My Portfolio
Other Software Development Services I Offer
FAQ
Do I actually need microservices?
Often, no - and I'll tell you if a well-built monolith is the right answer. Microservices solve organisational and scaling problems, and they add real operational cost. I've architected both and will recommend based on your situation, not on what sounds impressive.
Java or Node - which should I pick?
Java and Spring Boot for heavy enterprise workloads, strict typing, complex domains and long-lived systems. Node for I/O-heavy real-time services and faster iteration. I work in both daily and will recommend based on your team and workload.
Can you work with our existing codebase?
Yes. Start with the Basic architecture review - I'll assess what you have, identify the real bottlenecks, and give you a prioritised plan before you spend money on a rebuild.
What scale can you design for?
I architected a healthcare platform currently serving over a million users, and enterprise risk systems processing continuous market and macroeconomic data. Tell me your expected load and I'll design to it.
Do you write tests?
Standard and Premium include automated tests. Premium includes load testing. I don't consider a backend delivered without them.
Can you handle compliance requirements?
Yes. I've built for banking-grade security, GRC and compliance platforms, and healthcare systems. Tell me your framework - SOC 2, HIPAA, GDPR, PCI - and I'll architect accordingly.
Will you document the system?
Every package includes documentation and an architecture diagram. Your team needs to maintain this after I hand over - that's the point.

