
Gerson
From United States (UTC-5)
10 years of commercial experience
Lemon.io stats
1
projects done248
hours worked1
ongoing projectGerson – Node.js, React, Typescript
Gerson is a skilled Senior Full-Stack Engineer with expertise in React, Node.js, TypeScript, and AWS cloud services. With a strong problem-solving mindset and hands-on coding abilities, he has already held multiple senior positions and contributed as an Adjunct Professor at the university. Passionate about the intersection of AI, health tech, and fintech, he brings a collaborative approach to projects!
Main technologies
Additional skills
Direct hire
PossibleReady to get matched with vetted developers fast?
Let’s get started today!Experience Highlights
Owner and Lead Developer
Whether the user is a casual gym goer or a physical trainer managing their clients, this platform will help manage one's gym needs and achieve gym goals. The product includes features such as a Live Trainer or AI to guide the user!
- Leveraged AI, specifically Google’s Gemini, to generate a user's customized workout plan;
- Enabled users to edit workout plans, get a trainer, and create a new custom or AI workout plan based on subscriptions via Stripe API;
- Included the React Native app deployed as a Beta on Apple’s Testflight using Figma designs;
- Wrote APIs in NestJS, while DB is using both Postgres and Mongo;
- Created the desktop version with React.
Senior Developer
The project is under NDA. It involved the creation and extension of functionalities of several full-stack applications.
- Refactored existing React apps into reusable components to use among different React apps;
- Owned and architected new full-stack functionality with Vite and NestJS. From DB schema design to FE state management solutions;
- Increased developer productivity by creating customs scripts, e.g., creating a custom bash script and creating a process for app config flags from AWS;
- Created an automated zipping download process using AWS S3, Step Functions, Lambdas, and React;
- Decreased load time by using observables with custom SQL queries;
- Managed 2 junior engineers and helped out other engineers with tickets.
Senior Full-Stack Developer
The project is under NDA, a startup in the healthcare industry. The role involved the creation of multiple microservices and React front-ends.
- Created an Authenticating Authority API integrating SAML, OTP, and JIT provisioning using NestJS and Typescript;
- Implemented a service using NestJS and Typescript, integrating newly designed Postgres tables for a client-facing app;
- Modified existing infrastructure to include Kafka and gRPC;
- Updated Databricks Notebook using Python;
- Created a GoLang service to scan S3 objects with ClamScan;
- Incorporated new features for the client-facing React frontend, such as LaunchDarkly.
Lead Full-Stack Engineer
The platform was created by an award-winning editorial team dedicated to helping users live a healthy life with accurate, balanced, and evidence-based content - articles, videos, and tools providing trustworthy guidance based on real-world medical expertise. The project involved ETL of monthly pharmaceutical updates to the Postgres server, then using a GraphQL API, displays of the data, and dynamically created routes based on drug names and drug types while allowing editors to verify and update any drug.
- Developed the monthly import job and related backend for the "Drug Classes" section;
- Made the entire Front-end and Back-end (leading FE work) for the healthcare providers Portal;
- Integrated Stripe for yearly subscriptions;
- Created and deployed GraphQL APIs with Sequelize and Apollo to AWS with Serverless;
- Created lambdas using the Serverless framework based in Node and deploying it out to AWS;
- Used React Hooks and Redux, worked on newly created drug templates found on the consumer-facing website;
- Managed two offshore contractors and one onshore FTE.
Senior Full-stack Developer
The one-stop shop for finding top doctors in the user's area. The platform allows for search by hospitals, names, or location, and shares your background and experience, including race and ethnicity, gender, orientation, and language. These distinctions among doctors were designed with inclusivity in mind, as the choice of a physician is highly personal.
- Used Kinesis, DynamoDB streams, and the serverless framework to collect, track, and maintain event data for SEO, AdOps, and Business Intelligence. Collectively all the Content Data Pipeline (CDP);
- Initializing various Postgres tables with Sequelize and deploying to an AWS RDS instance;
- Led the Front end creation of a new public-facing subdomain for the company, currently live and in production with working ads;
- Led the development of an internal CMS manager using React, Material-UI, GraphQL, and Apollo;
- Developed the monthly import job and related backend for the Drug Classes section;
- Created the entire FE and BE (leading FE work) for the Provider Portal!;
- Integrated Stripe for yearly subscriptions.