Building scalable enterprise applications, secure APIs, SaaS platforms, and modern cloud solutions. Consultant specializing in high-throughput JVM backend architectures, HubSpot integrations, and NetSuite ERP synchronizations.
I am a passionate Senior Java Backend Engineer, Consultant & Founder of Grow Tech with 7+ of professional experience crafting robust server-side infrastructures. Based in Kathmandu, Nepal, I partner with companies globally (including remote teams in Europe and local agencies) to design clean architectures that scale.
My technical specialties center on the JVM ecosystem—particularly Spring Boot and Spring Cloud—to map event-driven microservices. I place heavy emphasis on secure coding standards, using OAuth2, JWT authorization, and OWASP mitigation checklists.
In addition to my core Java strengths, I have deep domain expertise in building integrations. I regularly script complex NetSuite RESTlets and connect them securely to HubSpot CRM databases, automating vital business processes.
Basico IT (Spain - Remote)
Architect and lead backend systems development and high-throughput integrations for European clients, focusing on secure financial flows and modernizing Java legacy systems.
Pods365 (Kathmandu, Nepal)
Helped define architecture strategies for SaaS multi-tenant portals, bridging NetSuite ERP solutions and HubSpot marketing automation suites to core backend services.
Grow Tech Pvt. Ltd. (Kathmandu, Nepal)
Founded and scaled Grow Tech, designing secure RESTful APIs, multi-tenant architectures, and payment aggregations for Nepalese enterprise and agricultural SaaS platforms.
Info Developers Pvt. Ltd. (Kathmandu, Nepal)
Worked on secure government workflow platforms, digital certificate systems, and enterprise banking APIs.
High-Throughput Payment Processor
A highly secure payment aggregation system built on Spring Boot, integrating Stripe, local wallets, and secure payment pathways with robust OAuth2 security.
Enterprise Data Synchronization Hub
A high-performance Java engine bridging NetSuite ERP stock databases with HubSpot lead automation systems using RESTlets and event queues.
Containerized Multi-Tenant Core
A containerized SaaS product architecture managed via Spring Cloud, Apache Kafka, and Kubernetes, serving highly responsive client portals.
Secure Citizen Lifecycle Portal
A secure digital workflow and API platform tailored for citizen lifecycle verification, conforming to rigorous OWASP security standards.
Property Management Backend
A SaaS tenant portal handling booking schedules, billing schedules, payment gateways, and real-time email/SMS notification queues.
Tamper-Proof Ledger Verification
A high-security backend platform generating cryptographically verifiable digital certificates with blockchain-ready architecture.
High-performance enterprise architectures built on Java 17/21 and Spring Boot. We build robust, reliable, and secure foundations that can handle millions of requests without breaking.
Transitioning monolithic platforms to containerized microservice architectures. Includes service discovery, API Gateways, dynamic tenant routing, and event messaging.
Streamlining business data by linking custom software with HubSpot CRM and NetSuite ERP. Build automated workflows, synchronization tunnels, and custom RESTlets.
Technical consulting on system design, database tuning, security audits (OWASP mitigations), and code refactoring to save infrastructure costs and prevent security breaches.
We audit your existing backend, analyze API specifications, align on DB requirements, and diagram a resilient architecture flow.
I build the backend incrementally (typically in Spring Boot & PostgreSQL), checking progress with continuous integration and JUnit mock testing.
Every endpoint undergoes OWASP security sweeps and load tests. NetSuite / HubSpot API thresholds are verified, ensuring stable webhooks.
The microservices are packaged in Docker, deployed to cloud infrastructure (AWS/OCI/Vercel), and delivered with complete API docs.
"Samir joined our remote team and instantly elevated our backend standards. He optimized our Spring Batch processing pipeline, improving inventory sync speeds by 20% and resolving database lockouts that had bugged us for months. His understanding of OAuth2 and payment gateways is second to none."
"We hired Samir to build the ERP connector bridging our core SaaS portal with HubSpot CRM and NetSuite. His architectural decisions saved us weeks of dev time. The event-driven Kafka setup he implemented runs incredibly smoothly, handling spikes in leads with zero message loss."
Chief Technology Officer — Pods365
"Samir is an exceptional engineer who thrives under pressure. While at Info Developers, he built citizen workflow engines that processed sensitive digital certificates with high security standards. His commitment to OWASP guidelines and clean code architecture was invaluable to our government agency contracts."
"Samir was a lifesaver for our real estate tenant platform. He developed the entire automated billing scheduling daemon and Stripe payment gateway. Database queries that previously timed out now execute in milliseconds. He is reliable, highly communicative, and remote-work ready."
Have a project in mind, an ERP integration challenge, or need technical consulting? Fill out the lead form or reach out through my verified communication channels.