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Jourdan
From Brazil (GMT-3)
9 years of commercial experience
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Jourdan – React, Django, Node.js
Jourdan is a Strong Senior software developer seeking opportunities in a healthy and dynamic startup environment. Proficient in Node.js, React, and Django, he has showcased a strong grasp of software development principles during the vetting process at Lemon.io. Jourdan has also worked with diverse business domains, including fintech, healthcare, staffing, and more!
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Potentially possibleExperience Highlights
Senior Software Engineer
A healthcare staffing platform that connects travel clinicians with open jobs all over US, and helps facilities fill their staffing needs quickly and efficiently.
- Turned Hygraph data into LD+JSON for SEO, significantly boosting organic discoverability;
- Was a lead CSS expert responsible for intricate asymmetric designs in the rebranding project;
- Built up a plan to improve web vitals metrics.
Staff Full-Stack Engineer
A no-code paywall management platform, helping clients grow their business using IAPs and subscriptions
- Provided insights on technical decisions and strategies for maintenance and feature development;
- Implemented Multi-Factor Authentication (MFA) with TOTP authenticators, recovery codes, and email;
- Restructured the authentication to reduce the quantity and latency of database queries by 80%;
- Implemented an extensive cache layer on query sets to support millions of requests per minute;
- Enhanced test coverage from 30% to 80%, including E2E tests with Cypress and component tests;
- Optimized database queries for faster endpoints;
- Developed a template architecture for paywalls in iOS, Android, and Web;
- Transitioned JavaScript to TypeScript;
- Simplified complex design patterns and reduced excessive Redux usage;
- Created a React-Query-based API module and utilized React Context for centralized authentication logic.
Staff Back-End Engineer
Team wiki solution with AI suggestions and trackable training to deliver knowledge to teammates at the right time
- Managed over 60 backend microservices (Django/Flask/Node);
- Merged 2 Django projects, resulting in roughly 10x improvement in authenticated HTTP requests;
- Created a proof-of-concept for Flask to Django migration, including MongoDB integration;
- Established a culture of writing tests, reducing production bugs;
- Maintained a mid-scale Slack app, heavily using its API features;
- Improved CI setup and coordinated services for ease of maintenance.
Full-Stack Engineer
A free-to-use website builder and content management system that creates beautiful web interfaces for three types of academic content providers: institutional repositories, academic journals, and academic conferences. It currently serves over 1,000 repositories, 3,000 journals, and 70 conferences.
- Adjusted all projects to be environment-based, aiming for local environments not to contact production assets (databases, storages, etc.);
- Introduced tests in both frontend and backend;
- Implemented a Docker setup and placed Sentry in production for crash visibility;
- Created a staging environment with Heroku for bug prevention.
Software Engineer
An adventure travel company that exists to create sustainable experiences for travelers and local communities.
- Implemented version control (Git) and established a development process;
- Added unit and integration tests, as well as automated deployment;
- Worked on improving web vitals metrics;
- Introduced crash visibility with Sentry;
- Reduced code redundancy, addressing discrepancies and bugs spread over several pages.
Full-Stack Engineer
A fintech platform for managing ownership and equity with a mission to expand the global ownership graph so that everyone can own a portion of what they have built.
- Implemented user activity tracking with Mixpanel, which resulted in a focus shift based on user behavior;
- Refactored the implementation around onboarding, ending a series of critical crashes that severely damaged the reputation of the product at the time;
- Increased automated testing, going from 30% to 80% in a couple of months;
- Was involved in the migration to a microservice structure.
Staff Software Engineer
This experience included contributions to dozens of projects related to such businesses as online marketplaces, music streaming, condominium access management, food picture-sharing social networks, health tracking IoT software, etc.
- Established an app structure to be used across the clients' projects;
- Pioneered automated testing at the company and promoted a CI/CD culture;
- Developed a backend app style guide;
- Trained various teams using Docker, Django i18n, code documentation, and legacy app refactoring;
- Built and established a Git-based deployment.