https://harshal.one linkedin.com/in/harshalparekh/ +1 (412) 708-6317 [email protected] github.com/Harshal96 stackoverflow.com/users/8430155
Harshal Parekh EXPERIENCE
Visa, Inc. / Sr. Software Developer Austin / Feb 2020 - now “Athena” / Product Owner - one stop gateway validation
• Fully automated tool generating rule-based, gateway and field agnostic, comprehensive test cases. • Verifies rule logic; auto-generates test data for 100% rule coverage. • Differencing library only processes the changes in future requests.
“Minerva” / Full Stack - one stop helper utility • Run standalone tests, get responses/errors from server logs, check server status, format converters (JSON to XML, etc.) and beautifiers. • Users can create new environments and save configurations.
“Internship” Summer 2019 Athena (POC): reduced manual effort to zero and TTM by 30%.
Credit Suisse / Technology Analyst Intern India / Summer 2017 Automated 6 tasks - traversing through 4 tools and generating the final report - saving 1.5 hours daily.
PROJECTS
Twitter Analytics on AWS Spring 2019 • A scalable and reliable web service on ~200 million tweets. • Performed ETL into MySQL and HBase; designed and optimized the schemas that increased throughput; profiling identified bottlenecks. • User recommendation based on interactions and text (15,000 RPS) • Time & user ranged topic words extraction using TF-IDF (5,000 RPS)
Cab Service on GCP April 2019 • Real-time customer-driver matching and ad-serving Kafka and Samza system on a YARN cluster to join and process multiple streams. • Feature extraction and hyper-parameter tuning of XGBoost model that predicted fare and suggested places using a pipeline of ML APIs.
Multi-threading and Consistency March 2019 Extended a distributed key-value store with replication schemes - strong and eventual consistency at different geographical locations.
Social Networking Timeline February 2019 Reddit timeline page with MySQL, MongoDB and Neo4j backends.
Knowledge Discovery on Health Records Undergrad Research 96% accuracy on CDC sourced data; interactive visualizations.
EDUCATION
Carnegie Mellon University Master’s (Dec 2019) Information Systems Management
Mumbai University Bachelor’s (May 2018) Information Technology
Coursework Cloud Computing, Distributed Systems, Designing Human Centered Software, Systems Architecture, Data Structures, Data Mining, Artificial Intelligence, Machine Learning, DevOps / RA (Fall 2019)
SKILLS
Core Java, Python, Scala, Vert.x, Node.js
On AWS / GCP / Azure MapReduce, Spark, Kafka + Samza, Docker, Kubernetes + Helm, Terraform
Web Technologies HTML5/CSS3/JS, React, PHP
Analytics / ML / Databases Keras, Tensorflow, Pandas MySQL, Cassandra, Neo4j, MongoDB
HACKATHONS WON
• SDLC / “AI-based PostOp Care”
• Hack This Help Kids / “Smart Breast Milk Supply System"
• TechnoFest / “MediCard”
FREELANCE
• Worked on 25+ projects over 2 years;
• Designed and developed dashboards for Brettex and DigioTouch integrating Stripe payments.
DeepFix Multi-layered neural network correcting errors in C source code with 47% accuracy.
Influential Twitter Users 10 iterations of PageRank algorithm using Scala on Azure HDInsight on 11GB dataset.