Ŵàfã Shaikh jameel
Java Backend Engineer
About
Java Backend Engineer with 4 years of experience building high-performance Spring Boot applications, cloud-based systems, payment integrations, ETL pipelines, and large-scale data processing solutions across AWS, Azure, and GCP.
Skills & Expertise (20)
Work Experience
Software Developer
Digital Assets
Jan 2025 - Jun 2026
Reduced inventory listing API response time by 99%, from 15 seconds to under 100 ms, significantly improving application performance and user experience. Developed backend services processing 380 million VIN records and retrieving 500–700 vehicle attributes per request, enabling large-scale vehicle search and listing operations. Led backend development of a scalable vehicle management platform, handling high-volume data processing and enabling listing, buying, and selling via VIN/license plate. Implemented Azure Blob Storage for handling vehicle images and PDF documents, replacing local Linux server storage and improving scalability, reliability, and access performance. Designed and integrated PayPal payment workflows supporting secure vehicle purchase transactions and reducing manual payment processing. Optimized Spring Boot REST APIs, request processing, and PostgreSQL queries, reducing latency under high-volume workloads. Designed centralized audit logging used across multiple business workflows, improving production debugging and compliance tracking. Integrated DocuSeal for digital signature workflows, enabling buyer, co-buyer, and dealer to securely sign documents during vehicle transactions.
Software Developer
Centilytics
Feb 2024 - Dec 2024
Built an ETL framework for the Azure and AWS cloud platforms, allowing clients to effortlessly track cloud consumption costs and utilization metrics. Implemented AWS IoT integration in Product Atlas, enabling early data visibility through asynchronous processing. Developed solutions using multi-threading for asynchronous tasks, enhancing application performance and responsiveness. Implemented a rightsizing option for customers, leading to significant cost savings by optimizing multiple under-utilized VMs. Designed BigQuery-based storage and retrieval mechanisms, improving UI response times by 90%. Integrated Redis caching to reduce database load by queuing subscriptions, with a scheduler fetching API data and storing it in BigQuery for efficient ingestion and UI display.
Java Developer
Digital Assets
Jun 2022 - Jan 2024
Developed RESTful backend APIs using Java, Spring Boot and PostgreSQL. Implemented inventory and dealer management modules following layered architecture. Designed JPA entity relationships and optimized SQL queries for business workflows. Collaborated with senior engineers on feature development, debugging and production deployments.
Education
Bachelor of Technology in Computer Science and Engineering - Maharishi University of Information Technology
2019 - 2023 · Afghanistan
Certifications
No certifications added yet
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Visa Status
Citizen
Relocation
Open to Relocation
Skills (20)
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