# Viktor J. > Android Engineer @WhatsApp Location: San Mateo, California, United States Profile: https://flows.cv/viktor Disney Streaming Data Engineer ## Work Experience ### Software Engineer @ Meta Jan 2024 – Present | Menlo Park, California, United States Whatsapp ### Software Engineering Data @ WeVision LLC Jan 2022 – Jan 2024 | remote ### Software Engineer @ Hulu Jan 2022 – Jan 2024 | Santa Monica, California, United States * Implemented a business tracking dashboard via Databricks. * Implemented a storage and compute cost data aggregation pipeline using Databricks and S3. * Maintained the advertising campaign streaming data pipeline. * Optimized batch job revision logic and mitigated concurrent pressure on the server side. * Maintained the streaming job deployment system on Docker and K8s (Kubernetes). * Managed Terraform configuration for S3 access and inventory management. * Communicated across multiple teams and delivered specific metrics deprecation plans and service migration plans. ### iOS Developer @ Devz Jan 2022 – Jan 2022 | Irvine, California, United States Experienced iOS developer skilled in creating dynamic animations and multimedia integration. Developed an iOS project, Content Generator App, with corefure effects and cross-thread communication for multi-threaded animation rendering. Strong expertise in iOS development, Core Animation. Committed to delivering visually appealing and high-performance applications. ### Android Team Lead @ AiTmed Jan 2021 – Jan 2022 | Santa Ana, California, United States ### Android SDK Developer @ AiTmed Jan 2020 – Jan 2021 | Anaheim, California, United States AiTmed Mobile App https://play.google.com/store/apps/details?id=com.aitmed.care AiTmed Provider Mobile App https://play.google.com/store/apps/details?id=com.aitmed.prod Experienced in writing comprehensive unit tests for Android SDK, ensuring the robustness and reliability of applications. Proficiently debugged critical issues, including crashes, memory leaks, and ANRs (Application not responding), to optimize application performance and stability. Collaborated closely with the product management team to maintain alignment with product roadmaps. Effectively managed and tracked both long and short-range deliverables, ensuring timely and successful completion of project milestones. Utilized Blockchain technology to securely encrypt user information, ensuring utmost data security and compliance with HIPAA regulations. Implemented robust encryption protocols to protect sensitive user data, fostering trust and confidentiality in the system. Environment: Java, Android, Firebase Cloud Messaging, GRPC, Android SDK development, RxJava, ECC(Elliptic-curve cryptography), Twilio SDK ### Software Engineer @ Patriot Conceptions Jan 2020 – Jan 2020 | Costa Mesa, California, United States ### Capstone: Software Developer @ UCI MEDICAL CENTER Radiation and Oncology Jan 2020 – Jan 2020 | Orange,CA Lachesis System: Build an Android app and make communication with Fitbit to collect patients’ real-time heart rate, and by using the heart rate calculated patients’ stress level, breath rate, and blood oxygen rate. Moreover, the app can use iBeacon Bluetooth Communication to identify the patient’s location. Build an admin portal website, help the nurse, doctors, IT admins to get patients data according to their permission. (IntelliJ, React Native, Spring Boot, Mybatis, Ionic4, docker, AWS, Mysql, JUnit4, Sonarqube, Jenkins) ### software developer Intern @ Brix Labs Jan 2019 – Jan 2020 | Costa Mesa, CA Data Crawling: Simulate https Request to backed, crawl 3000+ Tesla news from Bloomberg for analyzing the stock price. (Python3, Postman) News Auto Update: Simulate https Request Craw the 500 news from Techcrunch and the other 4 news platforms, sort the news according to the TF-IDF algorithm about AI words, helped the marketing department increase news update efficiency. (Java, Jsoup) ### Capstone: software developer @ Smith Micro Software, Inc. Jan 2019 – Jan 2019 | Irvine, California INF 117 class assignment sponsored by Smith Micro Worked for Android application development via Mapbox API, and using WIFI location tracking API. Using AWS Elastic Search to build No SQL database, and visualize the data and analyze it. Statistics the data, test WiFi vendors' accuracy, and make a rank for vendors according to error standard deviation base on reallocation and price. ### Data Analysis Intern @ YYP Entertainment Jan 2018 – Jan 2018 | Rowland Heights, California Download and washing 2,000 tickets data per week.Using variable control method build correlation and covariance model about ticket sales and advertisement types. Optimizing advertising strategy and maximize the tickets sales income. ### Marketing and Data Analyst Intern @ EventBlock Jan 2018 – Jan 2018 | Haywood White paper main editor, and focused on analyzing market share rate and industry data. The white paper helped the company invested 1.2 million dollars. ## Education ### Master Quit in Information Science/Studies Trine University Jan 2023 – Jan 2023 ### Bachelor of Science - BS in Informatics & statistic UC Irvine Jan 2018 – Jan 2020 ### Transfer in Computer science, Physics, Mathmatic College of San Mateo Jan 2015 – Jan 2018 ## Contact & Social - LinkedIn: https://linkedin.com/in/viktor-j-64bb2a117 --- Source: https://flows.cv/viktor JSON Resume: https://flows.cv/viktor/resume.json Last updated: 2026-03-22