J

Joyce Silvera

Software Engineer

United States11 yrs 6 mos experience
Most Likely To SwitchAI ML Practitioner

Key Highlights

  • Led billing infrastructure modernization at HealthEquity.
  • Saved over 500 engineering hours through AI automation.
  • Achieved 400% database performance improvement at Tesla.
Stackforce AI infers this person is a Backend-focused Software Engineer with expertise in Healthcare and Fintech.

Contact

Skills

Core Skills

Microsoft AzureAiAwsReactFull Stack DevelopmentWeb Development.net

Other Skills

.NET CoreADO.NETASP.NETAWS LambdaAgile MethodologiesAlgorithmsAmazon Web Services (AWS)AngularAngularJSAzure DevOps ServicesBig DataBootstrapC#CSSCascading Style Sheets (CSS)

About

Leading the billing infrastructure modernization effort at HealthEquity, where I work at the intersection of AI, backend and healthcare finance. From building an AI solution using LLMs to automate ~800 test cases, saving over 500 engineering hours; to preventing $700K in potential revenue loss with a time-critical bug fix, I thrive on solving complex problems that drive real-world impact. Previously at Amazon, I worked on large-scale systems using AWS serverless tech, and at Tesla, I sped up database performance by 400%. #GraceHopperConference #SocietyOfWomenEngineers #WonderWomenInTechScholar 👩🏻‍💻Software Engineer | Dev Lead

Experience

11 yrs 6 mos
Total Experience
2 yrs 6 mos
Average Tenure
3 yrs 1 mo
Current Experience

Healthequity

Senior Software Engineer (Title: SWE II)

May 2023Present · 3 yrs 1 mo · Remote

  • Serve as Dev Lead and Subject Matter Expert on the modernization of Health Savings Account (HSA) billing workflows supporting financial infrastructure used by 17M+ Americans across 120K organizations, including major employers and U.S. federal agencies while improving processing speed and ensuring continuity of critical healthcare financial operations
  • Built and pioneered an in-house AI test framework replacing Mabl, using RAG scripts to automate 800+ cases, saving 500+ engineering hours
  • and $50K/year in licensing
  • Modernized legacy service jobs by integrating Big Data technologies, reducing billing times from 4 days to 30 minutes and achieving over 99% efficiency gains, while enhancing fraud detection through real-time data processing
  • Resolved a time-critical bug in a homegrown tool, preventing $700k in potential revenue loss and ensuring financial accuracy
  • Led and recognized as a critical contributor to the success of the Further migration project built with Azure stack, ensuring secure and uninterrupted migration of sensitive healthcare financial data
  • Authored detailed design documentation after deep-diving into legacy codebases, supporting future platform enhancements
  • Mentored data engineers by transferring deep finance domain expertise essential to the success of the modernization initiative.
Microsoft AzureAIBig DataRAG scriptsFraud detection

Amazon

Software Engineer

Sep 2021Apr 2023 · 1 yr 7 mos · Remote

  • Designed and built highly scalable APIs using Amazon API Gateway for the Global Security Center apps
  • Developed 30+ features across 5 projects using React, TypeScript, Java, DynamoDB, AWS Lambda, Step Functions and SNS, alongside
  • internal tools, contributing to both frontend and backend improvements
  • Created real-time production monitoring using AWS CloudWatch dashboards, custom metrics, and alarms to track system health
  • Built robust end-to-end integration tests using JUnit and Mockito, achieving 95% test coverage
  • Contributed to a research initiative integrating the Hydra framework for backend integration testing
AWS LambdaReactTypeScriptJavaDynamoDBAWS

Tesla

Software Engineer Intern

Jan 2021May 2021 · 4 mos · Fremont, California, United States

  • Full stack web development in the IT Applications across multiple large scale applications
  • Improved performance by 400% of database connectivity to handle 450k requests from previously 90k without crashing or degrading the system
  • Completed 40+ (features/improvements/bug-fixes/prod-fixes) on a highly complex set of
  • applications
  • As a Software Engineer Intern creating UI components, writing APIs, services, scripts, unit tests, low-defect-rate good quality code
  • Built a monitoring tool using C# to extract messages from Kafka topics, data storage using Elastic search
C#Database performanceFull stack development

Family proud

Software Engineer Intern

Jun 2020Aug 2020 · 2 mos · San Diego, California, United States

  • Interned as a Software Development Engineer Intern during summer internship for a growing healthcare tech startup
  • Contributed to key full-stack features including a Care Giving Registry, Social Wall, and Resource Mapping tools using React, TypeScript, GraphQL, and Firebase to empower patients and caregivers with remote support during the COVID-19 pandemic.
  • Established experience in responsive UI development using ReactJS, TypeScript, Redux, React native, Material UI, Git and Firebase
  • Structured GraphQL queries to Google Firebase, programming cloud functions with GCP for Cancer/Covid-19 resources
  • Designed SPAs with static site generators like GatsbyJS that are highly responsive
  • Scripted test scripts and test plans to achieve full functional coverage of design and user story provided by product management for
  • Test Driven Development TDD with end-to-end testing using Jest, Enzyme and Cypress
ReactTypeScriptGraphQLFirebaseFull stack development

Daily titan

Webmaster - Student Assistant at CalState Fullerton

Aug 2019Jun 2020 · 10 mos · Fullerton, CA

  • Maintained and enhanced application of California State Fullerton daily newsletter, with HTML, JavaScript, CSS, Bootstrap to share digital news amongst the California State fraternity
  • Ensured high availability, fault tolerance and auto scaling - employing AWS Lambda platform for data uploads to AWS S3 buckets and trigger other Lambda functions
  • Established lifecycle policies for data back-up from AWS S3 to AWS Glacier
  • Performed search engine optimization techniques using SEO tools
HTMLJavaScriptCSSBootstrapWeb Development

Capgemini

3 roles

Senior Software Engineer

Promoted

Apr 2018Aug 2019 · 1 yr 4 mos

  • Improved code performance by refactoring 85% and fixed security vulnerabilities in the SMART tool
  • Honored by client for creation of forms, graphs, and plots, by programming highly complex math formulas that were used for
  • treatments and analysis via ZedGraph tool, that solved business problems
  • Refactored a critical module in the SMART tool, Kendo UI that reduced redundancy and resolved inconsistency of data by modifying
  • existing SQL stored procedures, functions
  • Executed unit testing, integration testing and user acceptance testing for entire application and deployment and test cases using NUnit
  • Engaged in Continuous Integration / Continuous Deployment (CI-CD) tools as Jenkins
  • Tools/Technologies used .NET Framework, C#.NET, ADO.NET, ASP.NET, AJAX, LINQ, Entity Framework, Visual Studio 2017,
  • AJAX, SQL Server 2012/2014, TFS, SVN, Jenkins, Check Marx, Unity Container, Telerik Kendo UI, ZedGraph
.NETC#SQL ServerJenkins

Software Engineer

Promoted

Apr 2017Apr 2018 · 1 yr

  • Involved in Systems Analysis, Design and Development leveraging Microsoft .NET Framework, C#.NET,
  • ADO.NET, ASP.NET, AJAX, LINQ, Entity Framework, Visual Studio 2017, AJAX, SQL Server 2012/2014
  • Composed SQL queries, functions, stored procedures, triggers, and views
  • Executed unit testing, integration testing and user acceptance testing for entire application and deployment and written test cases
  • using NUnit
  • Honored with ‘Customer Delivery Expert’ for resolving client queries and providing quick responses as a Production Analyst
.NETC#SQL Server

Project Manager

Apr 2017Aug 2017 · 4 mos

  • Pseudo - Live Project during training
  • ECommerce Web Application and Desktop Application
  • The project mainly focused on building an Ecommerce Shopping Store for
  • customers thereby providing a product catalog.
  • Responsibilities:
  • Elicitation of the project requirements and devising plans for the
  • completion of the project.
  • Assigning tasks to the team members, conducting meetings and
  • supervising the project.
  • Reviewing the functionalities within the application, performing quality
  • checks and ensuring that the application meets the requirements.
  • Technology:
  • #, ASP.NET, SQL, Winforms, ADO.NET, HTML, CSS, JavaScript
  • Special Tools:
  • Visual Studio 2013, SQL Server Management Studio 2012

Silvera's academy

Student Tutor

Aug 2013May 2018 · 4 yrs 9 mos

  • • Established a teaching academy for providing tutoring services to High School and Engineering sophomore students for Computer Science and Math

Education

California State University, Fullerton

Master of Science - MS — Computer Science

Jan 2019Jan 2021

Savitribai Phule Pune University

Bachelor of Engineering (B.E.) — Computer Science

Jan 2012Jan 2016

Joyce Silvera - Software Engineer | Stackforce