GARIMA TUWANI
AI First Full Stack Engineer (Development And Test)
Bengaluru
Summary
AI First Full Stack Engineer (Development and Test) with 9 years of experience building distributed systems, backend microservices, internal UI tools, and end-to-end test automation. Strong in Java, Python, JavaScript, API development, CI/CD, and cloud-native reliability, with a track record of reducing validation cycles from 144 hours to 3 hours. Completed the AI Engineering Cohort with a certificate, adding training in RAG, AI agents, tool calling, MCP, context engineering, LLM evaluation, and safety guardrails to a foundation in software development and quality engineering.
Overview
10
10
years of professional experience
1
1
Certificate
Work History
Software Development Engineer in Test
PhonePe Private
12.2023 - Current
- Architected a high-concurrency backend automation platform for distributed smart speaker ecosystems, utilizing modular standards to ensure vertical and horizontal scalability.
- Engineered a scalable validation engine that accelerated release cycles by 98% (from 144 hours to 3 hours), drastically increasing organizational deployment frequency.
- Designed and built a high-performance banking simulation microservice (LLD) using Dropwizard, decoupling internal development from unstable third-party environments, and eliminating external downtime.
- Spearheaded a full-stack reliability framework for core fund-transfer services, managing complex money movement between banking protocols and merchant gateways, with 100% service integrity.
- Developed high-throughput subscription and pricing microservices, integrating disparate accounting systems to ensure transactional atomicity and data consistency.
- Automated multi-day manual audit workflows into a four-hour, high-performance execution window, significantly optimizing engineering productivity across business units.
- Scalabilized Merchant Settlement Services to manage high-volume financial data flows, optimizing payout logic for accuracy and reliability at scale.
- Implemented a Dockerized infrastructure strategy, integrating automated reliability checks directly into CI/CD pipelines to enable seamless service containerization for staging and production.
- Pioneered AI-driven UI orchestration, leveraging Playwright, accelerating front-end reliability, and cross-service data validation to reduce financial reconciliation errors.
Sr.SDET
Unacademy
09.2021 - 12.2023
- Architected multi-stack automation frameworks using Python/Pytest and Java/Cucumber, optimizing for execution time and reporting efficiency.
- Spearheaded the monolith-to-microservices transition for payment modules, significantly improving API response times, and system availability.
- Developed internal UI tools using Retool to empower support teams, and streamlined backend reliability with Django unit testing.
- Engineered E2E validation for revenue-critical features, including scholarship tests, tiered subscriptions, and payment gateways, directly supporting SKU growth and revenue.
- Delivered learner-centric features, like automated test analysis reporting and feedback loops, to enhance the offline center education experience.
- Defined technical standards by establishing comprehensive automation guidelines, test parameters, and scripts across diverse business units.
Sr. Product Test Engineer
Rapido
10.2019 - 09.2021
- Engineered high-scale automation frameworks for Protobuf and REST APIs using Java, Retrofit, and TestNG, managed via Gradle.
- Spearheaded E2E delivery for core modules, including Payments (Amazon Pay, Google Pay, UPI), Pricing, and Intelligence Pricing (surges/competitive logic).
- Developed mobile automation suites using Java, Appium, and Cucumber BDD to ensure cross-platform product stability.
- Optimized DevOps and observability by integrating CI/CD pipelines with Slack reporting, and monitoring production deployments via Kibana, Grafana, and Loki.
- Drove system reliability through JMeter performance testing and multi-level production debugging to identify and resolve critical fixes.
SDET
Ola
01.2018 - 06.2018
- Engineered automated test scripts and integration suites using Mockito to validate core product features, backend services, and mobile application modules.
- Managed feature releases for Ola Share, leveraging Google Maps API expertise and monitoring production deployments to ensure high service availability.
Software Engineer-II
Spire
05.2016 - 12.2017
- Automated RESTful service validation using the Jersey framework and integrated automated sanity suites into Jenkins CI/CD pipelines.
- Managed production AWS environments and streamlined daily deployments of Apache Tomcat builds to ensure high service availability for diverse clients.
Education
BE -
03-2014
Skills
Languages & Runtime: Java, Python, JavaScript, Nodejs
Development: Spring Boot, Dropwizard, Django, Retool, REST APIs, Protobuf
System Design: Microservices, Low-Level Design (LLD), Distributed Systems, API Gateway
Databases & Storage: MySQL, MongoDB, Redis, Aerospike, HBase, Elasticsearch
Cloud & DevOps: AWS, Docker, Kubernetes, CI/CD, Jenkins, Git
Messaging & Observability: Kafka, Prometheus, Grafana, Kibana, Loki
Test Engineering: Playwright, Pytest, TestNG, Cucumber BDD, Appium, Mockito, JMeter; API, integration, end-to-end and performance testing
RAG (Cohort Training): Retrieval-Augmented Generation, embeddings, vector databases, chunking, ingestion, indexing, reranking, query rewriting, HyDE
AI Agents (Cohort Training): Tool calling, ReAct, prompt chaining, orchestration, routing, Model Context Protocol (MCP), context engineering, agent memory, multi-agent systems
AI Evaluation & Safety (Cohort Training): LLM evaluations, LLM-as-a-Judge, hallucination assessment, input/output guardrails, prompt-injection defenses, intent classification
LLM Foundations (Cohort Training): Transformers, tokenization, attention, fine-tuning (LoRA/QLoRA), quantization, multimodal models, agentic system design
Timeline
Software Development Engineer in Test - PhonePe Private
12.2023 - Current
Sr.SDET - Unacademy
09.2021 - 12.2023
Sr. Product Test Engineer - Rapido
10.2019 - 09.2021
SDET - Ola
01.2018 - 06.2018
Software Engineer-II - Spire
05.2016 - 12.2017
GHRCE - BE,
Certification
AI Engineering Cohort — AI Engg (aiengg.dev), instructor Gaurav Sen | Completed with certificate. Curriculum: LLMs, RAG, AI agents, MCP, context engineering, LLM evaluation, AI safety, and agentic system design.