Senior Software Developer - 10+ years in Cloud, Security

Vivek Tiwari

Vancouver, British Columbia, Canada ***.*****@*****.*** 604-***-**** in/vivektiwari www.github.com/vivtiw SUMMARY

Senior Software Developer with 10+ years of experience across infrastructure, security, and back-end engineering in both cloud and on prem environments. Domain experience includes climate tech, healthcare, and security from roles at Fortinet, Motorola, Zscaler, and Oracle. AI enthusiast who builds SaaS and e commerce applications using Claude, Cursor, and modern AI development tools—focused on creating secure, scalable, and intelligent software that improves developer and customer experiences. EXPERIENCE

Principal Member of Technical Staff

Oracle May 2024 - Present, Redwood City, CA,USA

Oracle is an integrated cloud application and platform services that sells a range of enterprise information technology solutions.

• Led the effort in QHIN conformance testing, achieving RCE certification by ensuring complete compliance with Sequoia specifications. Directed external participant testing to verify that OHIN (Oracle Health Information Network) executed all XUA transactions in full alignment with partner networks.

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• Designed and delivered the SMART v2 implementation, setting the foundation for future integration and interoperability. Initiated and developed the QHIN Simulator, aligning it with Sequoia testing specifications and preparing it for CI/CD integration to reduce manual testing by 30%.

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Built reusable automation scripts for security and transport validations, streamlining end-to-end gameday testing, reducing manual verification time, and saving 1 day per person's effort.

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• Resolved key infrastructure issues, including Dockerfile configuration fixes, enabling the stable execution of initiation tools. Sr Software Developer

Zscaler February 2024 - May 2024, Vancouver, BC, Canada Zscaler is a global cloud-based information security company that enables secure digital transformation for mobile and cloud. Key member of the Data Loss Prevention (DLP) team, identifying system bottlenecks and implementing optimizations that improved performance by 5% within five months, earning high executive appreciation.

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Sr Software Developer (Climate Tech/Sustainability) BMO Radicle November 2021 - January 2024, Remote, Canada Leveraged TensorFlow and Python to construct a linear regression model applied to carbon footprint estimation and energy consumption optimization for customers and climate-smart advisors.

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Integrated third-party energy data providers via webhook APIs to automate aggregation of energy consumption data using Ruby on Rails, simplifying data collection processes for Climate-smart advisors.

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Decreased software release time from > 5 hours to < 2 hours by migrating tech stack from Ruby(Rails) to Python(Django) and CI/CD from Ansible to GitHub Actions. Build the CI/CD pipeline on Github from scratch.

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Sr Software Developer (Access Control)

Motorola Solutions November 2018 - October 2021, Vancouver, BC, Canada Led a team of 2 to deliver on time-critical features i.e User Authentication/Authorization (JWT), Rate Limiting(iptables), and uploading self- signed SSL certificate (OpenSSL-X509) for Access Control Manager(ACM) with RESTful APIs (Ruby on Rails). Saved millions in revenue by mitigating attacks and customer support time by enabling the SSL upload feature.

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Transformed a monolithic application into microservices using Docker, facilitating communication through REST APIs to enhance scalability and strengthen development environment resilience.

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Reduced report generation time from 20 minutes to under 5 minutes by leveraging Redis caching, batching API calls, and running the process asynchronously.

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Software Developer (Access Control)

Motorola Solutions September 2016 - October 2018, Vancouver, BC, Canada Improved post-analysis for Rspec Automation Framework and expanded System/Hardware testing solutions by adding Raspberry Pi to automate card swiping. Saved 2 days of effort per person. Resulted in increased team effort for automation and post-analysis.

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Developed and integrated web sockets in Ruby on Rails to connect Biometric (Virdi) systems with Access Control Manager, facilitating seamless real-time authentication processes.

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Software Developer (Sandbox/Data)

Fortinet May 2014 - August 2016, Vancouver, BC, Canada Architected and deployed a cutting-edge, highly available web application (Web Filtering) on AWS utilizing Elastic Beanstalk. Pioneered the team's immersion in AWS as a versatile SaaS platform, effectively harnessing the system to quantify the sniffer engine's performance and promptly detect malicious samples.

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Analyzed and debugged TCP/IP and HTTP traffic and wrote a Test Automation framework to improve the isniff engine performance, achieving approximately 90% accuracy. Implemented this automation in Python using Scapy and Pytest.

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PROJECT

Mirco SaaS/Directory Service/E-Commerce

Solopreneur

Building ( stealth) micro-SaaS applications in the e-commerce and directory service domains, leveraging AI-assisted coding tools (Claude, Cursor) to accelerate prototyping and reduce development time.

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Developed minimum viable products (MVPs) ready for public launch, emphasizing automation, rapid iteration, and seamless user experience design

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Evaluated and customized modern UI/UX frameworks (e.g., Lovable, Next.js) to create responsive, fast-loading front-ends for consumer- facing platforms.

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EDUCATION

MASc, Electrical and Computer Engineering

University of Victoria • CA, BC, Victoria • 2012

B.Tech in Electronics and Communication Engineering National Institute of Technology, Durgapur • WB, India • 2009 CERTIFICATIONS

Supervised Machine Learning: Regression and Classification Coursera • 2023

• https://coursera.org/share/6f91b4040d8f84385d91e7b312e430d8 Advanced Learning Algorithms

Coursera • 2023

• https://coursera.org/share/1525a04420ada5b95f6dc69adc9b1b85 SKILLS

Ruby(Rails), Python(Django/Flask), NodeJS, Java, Bash, Typescript, Perl, PHP, C/C++, Powershell (Windows, Linux, Mac) Version Control

Team Demos/Presentation, Workshop, Scoping, Planning, Documentation, Customer Focus REST API, Postman/Swagger(API Testing), TensorFlow, AWS/OCI, CI/CD, Telemetry(fluentbit/ELK/Grafana), Docker/Kubernetes, RabbitMQ, OWASP

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