# Julio C. > Senior Software Engineer | Technical Lead | Full-Stack Developer | React Expert Location: Miami, Florida, United States Profile: https://flows.cv/julio I have been writing code for over ten years and currently specialize in building full-stack cloud applications, leading development teams using agile practices, and mentoring junior developers. Skills: React, TypeScript, Java, PostgreSQL, Redis, AWS, Azure, Kubernetes, Docker, Blockchain, DevOps ## Work Experience ### Senior Software Engineer @ Data#3 Jan 2023 – Jan 2024 Currently developing a cloud-based solution utilizing Microsoft Azure to digitize a client's remote operations center. ### Technical Lead | Senior Software Engineer | React, Next.js, Java, Kafka, and PostgreSQL @ Circular Economy Systems (CES) Jan 2022 – Jan 2023 • Delivered a full-stack application consisting of AWS PostgreSQL, Kubernetes, Apache Kafka, Java Spring Boot, and React Next.js. • Influenced architects with the database, microservices, and Kafka event topic designs. • Fostered the adoption of WCAG AA accessibility compliance, which later became a requirement. • Counselled the product owner and business analyst to write effective, technical user stories. • Mentored developers in 1-on-1 meetings and advised them on setting company-aligned goals. • Interviewed candidates with coding sessions and knowledge questions about Java and React. • Led web development decisions within the organization and trained developers on best React Next.js coding practices. • Developed accessible, headless React components with React Aria and built additional styled-components with Tailwind CSS, later shared via a Turborepo setup. ### Interview Engineer | Algorithms, Data Structures, Python, JavaScript, and Java @ Karat Jan 2020 – Jan 2023 • Hosted thousands of technical interviews for companies including Amazon, Roblox, and Robinhood. • Graded interviewers' performance with written feedback and corrections of algorithmic complexities. • Supplied feedback to improve the quality of the technical questions and interview process. ### Full-Stack Bootcamp Educator | Mentor, Interviewer, React, Node.js, and PostgreSQL @ Chegg Inc. Jan 2020 – Jan 2022 • Mentored over 100 full-stack development students, where over 30 students were hired or graduated. • Assessed students' skills by running mock interviews and grading assignments and capstone projects. • Taught junior developers the best coding practices in their tech stack, including React, Node.js, and PostgreSQL. ### Technical Lead | Senior Software Engineer | Agile Coach | React and Java @ IBM Jan 2016 – Jan 2020 | Greater New York City Area • Created a 300-page document of cloud patterns to influence executives at Bank of America to adopt IBM Cloud, a multi-million dollar deal. Cloud patterns included circuit breaker, event sourcing, CQRS, and more. • Coached dozens of members at American Airlines on XP agile and DevOps practices, such as TDD and refactoring, on top of delivering the Dynamic Rebooking app, which served thousands of people when Hurricane Irma struck. • Delivered multiple products as tech lead at American Airlines including a GDPR portal and services for caching flight information with Redis. • Onboarded dozens of employees in two-week coding boot camps, where I taught XP agile and DevOps practices, such as TDD, refactoring, continuous integration, pair programming, story-writing sessions, and more. • Pioneered consumer-driven contract testing with Pact at American Airlines to ensure provider microservices were compatible with consumer expectations. • Received the prestigious Solutions Lab Services Award in 2018, a quarterly award from a 400-member organization recognizing my work at American Airlines. • Received the 2015 IBM Cloud Garage Manager's Choice Award, recognizing the technical skills and positive client feedback. ### Full-Stack Software Developer | Angular, React, JavaScript, Node.js, and Scala @ IBM Jan 2015 – Jan 2016 | San Francisco Bay Area and New York City • Managed terabytes of data for a GameStop using ETL methods with Scala and Apache Spark. • Developed an MVP web application with D3.js charts to display aircraft fuel usage. • Developed an MVP home-loan mobile application for the Bank of the Philippine Islands with AngularJS and the Ionic framework. • Developed an MVP React, Node.js, and Neo4j application for Moleskine that allowed artists to share and collaborate their digital artwork. ### Co-founder | CTO | Crypto, Blockchain, Angular, and Scala @ PYC, Inc. Jan 2014 – Jan 2015 | New York, New York • Launched a bitcoin ATM startup, redesigning the vendor's ATM to support remote operations. This allowed us to scale to four states in the Northeastern region of the US. • Communicated with reporters from the New York Times, the Wall Street Journal, Vice, TechCrunch, and Good Morning America regarding the first bitcoin ATM in New York City, generating hundreds of thousands of dollars in revenue. • Improved the security of the vendor's software, including a severe electromagnetic pulse (EMP) attack vulnerability on the bill acceptor driver, mitigating potential losses of thousands of dollars. • Deployed a Scala application to Amazon EC2 that checked Bitcoin's latest price, processed client transactions, and stored data on Amazon DynamoDB. The service communicated with Bitstamp API and websocket-connected ATMs. • Built a Bitcoin ATM application as a web application running in a Nexus7 tablet and Chrome browser kiosk-mode with AngularJS. ### Intern Security Analyst @ Pentagon Cyber — pentagoncyber.com Jan 2014 – Jan 2014 | New York Performed penetration testing for a hardened defense contractor using black-box analysis including fuzz testing network devices and web applications. ### Researcher @ NSF REU at Marist College Jan 2012 – Jan 2012 | Poughkeepsie, NY Business Intelligence project analyzing relational data to help undergraduate students understand data warehousing. ### Assistant Network Analyst @ Networking Department at Marist College Jan 2010 – Jan 2010 | Poughkeepsie, NY Managed cables and Cisco networking devices for the main campus data center. ## Education ### Bachelor's Degree in Computer Science Marist University Jan 2010 – Jan 2014 ## Contact & Social - LinkedIn: https://linkedin.com/in/julio-c - Website: https://medium.com/@iamjuliooo --- Source: https://flows.cv/julio JSON Resume: https://flows.cv/julio/resume.json Last updated: 2026-03-22