Headline

Product Engineer → Java Backend | 5 Yrs Engineering Experience | Spring Boot • REST APIs • Microservices

About

Early Career : After BITS, I intentionally chose to join an early-stage startup to gain hands-on, end-to-end exposure. This allowed me to understand how a business is built from the ground up from initial architecture to production. At Cogos, I owned the full driver and fleet operator onboarding flow - a multi-step process involving KYC, document verification, third-party integrations, and device-level identity verification. Took it from design through implementation and testing, coordinating across backend, frontend, and external vendors. Also owned the identity and auth layer serving 50 enterprise partners across 10 integrated services - the API and access control logic that every downstream service depended on. Current Focus : More recently, I've focused my independent engineering work on Java/Spring Boot backend systems and distributed systems. I built and deployed a configurable DSL-based loan rule engine from scratch, working across rule evaluation, validation, persistence, Redis caching, security, observability, and deployment. I'm currently extending the architecture with Kafka-based event processing and AI-assisted analysis. I'm open to backend-heavy Software Engineer / Backend Engineer roles at product companies, teams where engineering ownership extends beyond implementing APIs to designing and evolving systems. Resume - https://drive.google.com/file/d/1EIcTcgCwFwzLR04wbdOp7dRNKk9JQ3hG/view?usp=sharing Reach me at - aishwaryamehrotra.dev@gmail.com Leetcode - https://leetcode.com/u/pMpBJ8v9G1/

Location

Bengaluru

AI stack

claude code

claude

github copilot

Work experience

Independent Backend Engineer at Technical Sabbatical, Mar 2025 - Present · 1 yr 6 mos, Architected and built a loan decisioning and rule-engine platform using Java, Spring Boot, PostgreSQL, Redis, and Docker. Designed a custom DSL-based rule engine using ANTLR4, with recursive AND/OR rule evaluation, multi-stage validation, configurable scoring, and severity-based decision overrides. Designed REST APIs, persistence models, caching strategies, validation workflows, and transactional boundaries with a focus on maintainability and extensibility. Added Redis caching for rule retrieval and worked through cache consistency, serialization, and eviction considerations. Implemented application observability using Micrometer, Prometheus, and Grafana to monitor application and rule-evaluation metrics. Containerized and deployed the application on AWS EC2, with CI/CD through GitHub Actions and managed PostgreSQL/Redis services. Currently extending the architecture with Kafka-based event processing to introduce asynchronous communication and event-driven workflows. Building an AI-assisted loan analysis layer using MCP, Spring AI, and LLM tool integration, allowing natural-language analysis of loan applications and rule results.

Senior Software Engineer at Cogos Technologies Pvt Ltd, May 2024 - Feb 2025 · 10 mos, Hybrid, • Owned REST and GraphQL APIs for authentication, authorization and user management - the identity layer serving 50 enterprise clients across 10 integrated services. • Designed and developed nodejs backend microservices to support core product workflows. • Drove PostgreSQL schema redesign and query optimization that improved backend reliability for production workloads, including indexing strategy and query profiling for high-throughput paths. • Participated in system design discussions, contributing to decisions around service boundaries, data modeling, and scalability. • Collaborated with frontend, product, and QA teams to deliver backend features aligned with business requirements. • Improved CI/CD pipeline reliability and deployment turnaround, enabling faster and safer release cycles across the team.

Software Engineer at Cogos Technologies Pvt Ltd, May 2022 - May 2024 · 2 yrs 1 mo, Bengaluru, Karnataka, India, • Owned end-to-end delivery of the driver and fleet operator onboarding flow - multi-step KYC, document verification, third-party integrations, and session management - from system design through testing and production release, coordinating across backend, frontend, and external vendors. • Managed session persistence on the frontend during onboarding - comfortable operating across the stack when the product demanded it. • Designed GraphQL APIs with optimized data access patterns reducing over-fetching and improving client-side performance for high-frequency queries. • Contributed to React frontend when needed building reusable components and managing state - comfortable operating across the stack. • Built Android (Java) and Flutter mobile apps for fleet and partner operations - delivering production features with direct user impact. • Designed and built a native Android plugin for SIM and device metadata collection, powering device-level identity verification at onboarding - an early-career deep dive into identity and trust systems. • Integrated mobile clients with backend GraphQL APIs, implementing pagination and data sync patterns for reliable offline-capable data access. • Applied structured state management (BLoC) and modular architecture to support scalability and maintainability of mobile codebases.

Teaching Assistant at Birla Institute of Technology and Science, Pilani, Jul 2018 - Dec 2019 · 1 yr 6 mos

Education

ME, Software Systems, Birla Institute of Technology and Science, Pilani

Bachelor of Technology (B.Tech.), Information Technology, Dr. A.P.J. Abdul Kalam Technical University

Public links

github: https://github.com/aishwarya14-dev

leetcode: https://leetcode.com/pMpBJ8v9G1

youtube.com: https://youtube.com/@AishwaryaMehrotra-x3y

medium: https://medium.com/@mehrotraa7