Headline

SDE @5paisa | Java, Spring Boot, Microservices | Fintech, Broking

About

Backend Developer with fintech experience building distributed microservices using Java (Spring Boot) and Go. Experienced in developing production-grade authentication systems, broker integrations, and REST APIs for trading platforms. Strong foundation in data structures, algorithms, system design, and distributed systems, with hands-on experience working with relational and NoSQL databases, Redis, Docker, and Kubernetes.

Location

Bengaluru

AI stack

claude code

claude

codex

cursor

gemini

openai

Work experience

Software Developer at 5paisa, Feb 2026 - Present · 8 mos, • Architecting a centralized authentication layer spanning 8+ microservices with JWT lifecycle management and Redis-backed sessions, lowering access-related errors by 30%. • Developing a secure API support module for client impersonation during debugging, cutting production resolution time by 25%. • Establishing client-location-based database routing across regional data stores, improving response latency by 20% during peak workloads. • Delivering 15+ RESTful endpoints for F&O and Commodity dashboards, serving market data, instrument details, and trading insights across 1,000+ financial instruments. • Developing Go-based backend services for the TradingView–5paisa broker integration, covering connectivity, authentication, request validation, and trading workflows.

Software Developer at 5paisa, Aug 2025 - Jan 2026 · 6 mos, • Standardized platform-wide access control with JWT access/refresh token rotation, migrating 50+ APIs without downtime. • Integrated Google Authenticator MFA to strengthen login protection for thousands of active trading users. • Engineered a high-concurrency watchlist service supporting multiple lists per user and thousands of instruments, increasing throughput by 35%. • Migrated legacy .NET services to Spring Boot microservices, reducing average endpoint latency by 25%. • Maintained 90%+ unit-test coverage across core modules while documenting API contracts and deployment architecture, strengthening reliability and knowledge transfer.

Full Stack Developer at Target Publications Pvt. Ltd., Jun 2024 - Nov 2024 · 6 mos, Mumbai, Maharashtra, India, • Engineered an e-commerce administration portal covering analytics, sales tracking, and user management, raising operational efficiency by 30% and cutting retrieval time by 25%. • Automated coupon, category, and inventory workflows, improving operational efficiency by 60% through streamlined processes and CI/CD integration.

Full Stack Developer at JAY Innovations, Mar 2024 - May 2024 · 3 mos, Mumbai, Maharashtra, India, • Constructed a real-time auction platform using WebSockets for live updates, increasing responsiveness by 80% while extending existing ERP capabilities. • Optimized large-scale processing pipelines for millions of records through asynchronous job queues, raising overall system efficiency by 60%.

Software Developer at Study Link Tech, Jun 2023 - Jul 2023 · 2 mos, Mumbai, Maharashtra, India, • Architected an LMS system using Scrum methodologies and Trello, streamlining the development process and boosting team collaboration, leading to a 40% faster feature delivery and improving team satisfaction by 35%. • Created an interactive platform for educators, enabling better scheduling and progress tracking, which led to a 20% increase in student performance and 30% improvement in teacher workflow efficiency.

Education

Bachelor of Engineering, Information Technology, Thadomal Shahani Engineering college

Diploma, Computer Engineering, Vivekanand Education Society's Polytechnic

Public links

leetcode: https://leetcode.com/siddiquesayed

gitlab.com: https://www.gitlab.com/SiddiqueSayed