I am Aashik Shaik, a Senior Full Stack Java Developer with over 6 years of experience designing, developing, and maintaining large-scale enterprise applications across fintech, aviation, e-commerce, and product engineering domains. I specialize in building scalable, secure backend systems with Java, Spring Boot, and microservices, and I design robust RESTful and event-driven APIs for reliable integrations. I enjoy collaborating with cross-functional teams to solve complex problems and deliver value quickly. I have a track record of migrating legacy monoliths to modular architectures, building real-time data pipelines with Kafka, and delivering data-driven dashboards that empower business users. I thrive in fast-paced environments and constantly learn to stay ahead of technology trends. I am passionate about delivering high-quality software, mentoring junior developers, and partnering with product, QA, and design teams to ship features on tight timelines while maintaining security, reliability, and regulatory compliance.

Aashik Shaik

I am Aashik Shaik, a Senior Full Stack Java Developer with over 6 years of experience designing, developing, and maintaining large-scale enterprise applications across fintech, aviation, e-commerce, and product engineering domains. I specialize in building scalable, secure backend systems with Java, Spring Boot, and microservices, and I design robust RESTful and event-driven APIs for reliable integrations. I enjoy collaborating with cross-functional teams to solve complex problems and deliver value quickly. I have a track record of migrating legacy monoliths to modular architectures, building real-time data pipelines with Kafka, and delivering data-driven dashboards that empower business users. I thrive in fast-paced environments and constantly learn to stay ahead of technology trends. I am passionate about delivering high-quality software, mentoring junior developers, and partnering with product, QA, and design teams to ship features on tight timelines while maintaining security, reliability, and regulatory compliance.

Available to hire

I am Aashik Shaik, a Senior Full Stack Java Developer with over 6 years of experience designing, developing, and maintaining large-scale enterprise applications across fintech, aviation, e-commerce, and product engineering domains. I specialize in building scalable, secure backend systems with Java, Spring Boot, and microservices, and I design robust RESTful and event-driven APIs for reliable integrations. I enjoy collaborating with cross-functional teams to solve complex problems and deliver value quickly. I have a track record of migrating legacy monoliths to modular architectures, building real-time data pipelines with Kafka, and delivering data-driven dashboards that empower business users. I thrive in fast-paced environments and constantly learn to stay ahead of technology trends.

I am passionate about delivering high-quality software, mentoring junior developers, and partnering with product, QA, and design teams to ship features on tight timelines while maintaining security, reliability, and regulatory compliance.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
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Language

Javanese
Fluent
Bashkir
Advanced

Work Experience

Senior Fullstack Java Developer at Wex Inc
March 1, 2025 - Present
Designed and implemented scalable backend services using Java 17 and Spring Boot to support high-volume payment processing and financial transaction workflows with strict performance and reliability requirements. Architected RESTful and GraphQL APIs consumed by multiple internal and external applications, ensuring consistent contract design, backward compatibility, and compliance with enterprise integration standards. Led migration of legacy monolithic components into modular microservices, defined API gateways and service discovery, and implemented observability with Prometheus, Grafana, and ELK. Implemented secure authentication/authorization via OAuth2, JWT, and Spring Security, and established comprehensive test coverage with JUnit 5 and Testcontainers. Built reusable libraries for error handling and API responses, and integrated Redis caching to reduce latency. Supported production releases, incident response, and post-mortem analyses.
Fullstack Java Developer at Panasonic Avionics Corporation
February 1, 2024 - February 1, 2025
Developed mission-critical backend services for in-flight entertainment and connectivity platforms serving millions of airline passengers. Designed RESTful APIs and microservices with Spring Boot to manage flight schedules, content delivery, passenger profiles, and real-time telemetry. Built frontend dashboards using React and Angular to visualize aircraft data and system health. Implemented event-driven processing with Kafka to stream sensor data and synchronize state across onboard and ground systems. Implemented secure communications, batch processing via Spring Batch, and robust CI/CD pipelines. Conducted performance benchmarking and implemented fault-tolerant mechanisms.
Java Developer at Flipkart
May 1, 2022 - December 1, 2023
Developed high-throughput backend services for e-commerce order processing, inventory management, pricing engines, and payment orchestration at scale. Designed REST APIs and asynchronous workflows to handle flash sale spikes and millions of concurrent users. Implemented cart, checkout, coupon validation, and order lifecycle logic with idempotent APIs. Built Kafka-based event pipelines for order events, shipment updates, and notifications. Employed Redis for distributed caching, implemented batch reconciliation, and wrote unit/integration/contract tests. Collaborated with frontend teams to define API contracts and ensure smooth integrations.
Software Developer at Zemoso Technologies
April 1, 2020 - April 1, 2022
Developed enterprise web applications using Java and Spring MVC; implemented backend services for user management, workflow automation, reporting, and transactional processing. Built multi-tenant architectures, integrated external APIs via REST/SOAP, and implemented Spring Batch for ETL processes. Refactored legacy modules into modular services, implemented logging, auditing, and monitoring, and automated build/deploy pipelines with Maven and Jenkins. Supported production deployments and contributed to architectural decisions and low-level design.

Education

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Qualifications

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Industry Experience

Financial Services, Software & Internet, Transportation & Logistics, Retail, Travel & Hospitality