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Toba – React, Typescript, Node.js, experts in Lemon.io

Toba

From United States (UTC-5)flag

Full-stack Web Developer|Senior
Front-end Web Developer|Strong senior
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Toba – React, Typescript, Node.js

Toba is a senior full-stack engineer with strong expertise in React, TypeScript, and Node.js. He is recognized as a strong senior on the frontend and a senior on the backend, with experience in event-driven architecture, microservices, and database transactions. Screenings confirm clear communication, proactive problem-solving, and effective leadership in technical and client-facing roles.

8 years of commercial experience in
Asset management
Banking
Cloud computing
Communications
Fintech
Fundraising
Govtech
Machine learning
Mental healthcare
Productivity
Social media
UI/UX
B2C
Trade
Enterprise software
Messaging software
Mobile apps
Web development
Main technologies
React
4 years
Typescript
8 years
Node.js
8 years
AWS
4 years
JavaScript
8 years
Next.js
2 years
Express.js
4 years
Additional skills
React Native
Android
iOS
Angular
REST API
Apache Cordova
Swift
Tailwind CSS
Java
Spring
Supabase
Redis
Amazon S3
Docker
PostgreSQL
CI/CD
Expo
UI/UX
SQLite
SQL
Stripe API
Webhooks
Socket.io
Web Sockets
AI
Direct hire
Possible
Ready to get matched with vetted developers fast?
Let’s get started today!

Experience Highlights

Principal Software Developer
Nov 2021 - Nov 20254 years
Project Overview

A mobile application for managing employer-sponsored benefits that gives employees a single, secure place to track and control their workplace finances. The app allows users to view and manage retirement and investment accounts, health savings accounts, and other benefits, update contributions and allocations, access documents and transactions, and use planning tools to assess retirement readiness. It also supports health benefit management, secure authentication with biometric login, real-time notifications, and multilingual access, enabling users to stay on top of their financial and health benefits directly from their mobile devices.

Project gallery:
Portfolio example for Fidelity Investments - NetBenefits Mobile by Toba
Portfolio example for Fidelity Investments - NetBenefits Mobile by Toba
Portfolio example for Fidelity Investments - NetBenefits Mobile by Toba
Portfolio example for Fidelity Investments - NetBenefits Mobile by Toba
Portfolio example for Fidelity Investments - NetBenefits Mobile by Toba
Portfolio example for Fidelity Investments - NetBenefits Mobile by Toba
Portfolio example for Fidelity Investments - NetBenefits Mobile by Toba
Portfolio example for Fidelity Investments - NetBenefits Mobile by Toba
Responsibilities:
  • Led the developer experience team, owning design system components, internal tooling, and development workflows;
  • Drove a security migration by moving secrets to a secure vault and updating CI/CD pipelines accordingly;
  • Designed and implemented structured onboarding programs and learning paths for junior engineers and new hires;
  • Handled on-call rotations and resolved production incidents in a timely and effective manner;
  • Improved the pull request review process, significantly reducing review time and lowering production incidents;
  • Reorganized and standardized technical documentation to simplify onboarding and product integration;
  • Defined code quality standards using linters and custom code generators for consistent project scaffolding;
  • Delivered quarterly proof-of-concepts to stakeholders to support product direction and technical decision-making;
  • Designed and built a cross-platform hybrid mobile application with millions of monthly active users;
  • Developed internal developer tools and enabled cross-environment debugging for applications;
  • Implemented comprehensive testing strategies to improve reliability and maintainability;
  • Built accessible user interface components in an agile environment, ensuring compliance with accessibility standards (WCAG).
Project Tech stack:
Angular
Angular CLI
Jenkins
Groovy
Java
Swift
Android Studio
Android
iOS
HTML
CSS
Typescript
Apollo GraphQL
GraphQL
NgRx
RxJS
Ionic
Cordova
Docker
AWS
Node.js
Xcode
API
Responsive Web Design
Jest
SASS
Storybook
Datadog
Splunk
Git
GitHub
Playwright
Express.js
Bash
CTO
Dec 2023 - Jul 20251 year 6 months
Project Overview

A copy trading platform that allowed retail investors to discover and automatically replicate the trades of experienced traders in real-time. The broker-agnostic platform used blockchain technology to connect different ecosystems, offering a hedge fund-like experience for users. Key features included matching investors with traders based on investing styles, auto-copying trades to users’ brokerage accounts, paper trading for trial runs, and creator profiles to showcase performance and grow a following. The platform targeted everyday investors seeking more control than traditional solutions and trading influencers looking to monetize their expertise.

Project gallery:
Portfolio example for Cashpool by Toba, CTO
Portfolio example for Cashpool by Toba, CTO
Portfolio example for Cashpool by Toba, CTO
Portfolio example for Cashpool by Toba, CTO
Portfolio example for Cashpool by Toba, CTO
Portfolio example for Cashpool by Toba, CTO
Portfolio example for Cashpool by Toba, CTO
Portfolio example for Cashpool by Toba, CTO
Portfolio example for Cashpool by Toba, CTO
Portfolio example for Cashpool by Toba, CTO
Portfolio example for Cashpool by Toba, CTO
Responsibilities:
  • Architected and developed broker authentication and communication services;
  • Designed and implemented an automated trading engine;
  • Onboarded and integrated broker APIs, mapping securities for accurate trading;
  • Architected both front-end and back-end of the core mobile application;
  • Integrated Stripe for payments and subscription management;
  • Developed key features and UI components based on Figma designs;
  • Managed development team and agile processes, including writing stories and leading ceremonies;
  • Reviewed pull requests and debugged major blockers in the codebase;
  • Wrote unit and integration tests to ensure application reliability;
  • Built and maintained CI/CD pipelines, deploying builds across development, staging, and production environments.
Project Tech stack:
React
React Native
Expo
Supabase
PostgreSQL
Typescript
Zustand
React Hooks
React Query
HTML
CSS
Tailwind CSS
AWS
Amazon S3
Amazon EC2
CI
CD
Git
Docker
Lead Software Developer
Oct 2024 - Jan 20253 months
Project Overview

A social mental health app focused on mood journaling and authentic emotional sharing. The platform provided a healthier alternative to traditional social networks by normalizing emotional transparency and fostering genuine connections. Key features included mood check-ins with pre-set emotions, mood-based content filtering, mood-themed user interactions, two-way connections without follower mechanics, privacy protections, real-name policy, and a mood timeline to track emotional journeys over time. The app targeted users seeking a more supportive and mindful social media experience.

Project gallery:
Portfolio example for Inpathy by Toba
Portfolio example for Inpathy by Toba
Portfolio example for Inpathy by Toba
Portfolio example for Inpathy by Toba
Portfolio example for Inpathy by Toba
Portfolio example for Inpathy by Toba
Portfolio example for Inpathy by Toba
Portfolio example for Inpathy by Toba
Portfolio example for Inpathy by Toba
Portfolio example for Inpathy by Toba
Portfolio example for Inpathy by Toba
Responsibilities:
  • Developed a cross-platform hybrid mobile application;
  • Built social features and real-time messaging functionality;
  • Designed and implemented a robust backend with social filtering and real-time communication;
  • Created a custom mood-themed system with dynamic animations;
  • Developed a mentally accessible user signup flow to improve conversion;
  • Wrote comprehensive unit and integration tests to ensure application reliability
Project Tech stack:
React Native
React
Supabase
PostgreSQL
Typescript
HTML
CSS
Redis
Web Sockets
Socket.io
Node.js
Deno.js
Expo
SQL
Lottie
Lead Software Developer
Mar 2022 - Oct 20227 months
Project Overview

A political contributions platform that served as a donor-centered hub for discovering causes, making donations, and tracking impact. The platform allowed users to create donor portfolios, receive data-driven recommendations, monitor real-time campaign updates, and manage contributions across multiple causes. Key features included personalized dashboards, cause discovery tools, impact monitoring, social engagement capabilities to mobilize peers, portfolio management, secure donation channels, and analytics to help both donors and organizations maximize impact. The platform targeted small-dollar donors, nonprofit organizations, and impact-focused individuals seeking to support causes aligned with their values.

Project gallery:
Portfolio example for EvenScore by Toba, Lead Software Developer
Portfolio example for EvenScore by Toba, Lead Software Developer
Portfolio example for EvenScore by Toba, Lead Software Developer
Portfolio example for EvenScore by Toba, Lead Software Developer
Portfolio example for EvenScore by Toba, Lead Software Developer
Portfolio example for EvenScore by Toba, Lead Software Developer
Portfolio example for EvenScore by Toba, Lead Software Developer
Portfolio example for EvenScore by Toba, Lead Software Developer
Portfolio example for EvenScore by Toba, Lead Software Developer
Portfolio example for EvenScore by Toba, Lead Software Developer
Portfolio example for EvenScore by Toba, Lead Software Developer
Responsibilities:
  • Developed a cross-platform hybrid mobile application;
  • Built the server backend and web frontend;
  • Implemented server-side rendering for share links and candidate profiles to improve SEO and discoverability;
  • Developed a digital “door-knocking” feature to support campaign fundraising and social activism;
  • Integrated APIs for candidate data and donation flows from ActBlue and WinRed;
  • Built a robust voter profiling model to advise candidate campaigns;
  • Wrote comprehensive unit, integration, and end-to-end tests, ensuring over 80% code coverage.
Project Tech stack:
React
Ionic
Node.js
Typescript
React Hooks
Zustand
React Query
Next.js
PostgreSQL
iOS
Android
CTO
Dec 2019 - Nov 20211 year 10 months
Project Overview

A cross-browser automation extension that allowed users to record, share, and automate browser-based workflows. The platform enabled on-demand or scheduled automation execution locally or in the cloud, with background recommendations to optimize time savings and workflow efficiency. Key features included cross-browser support, workflow recording, cloud deployment with secure credential management, and automated workflow suggestions. The extension targeted freelancers, solopreneurs, and enterprise teams seeking to streamline repetitive tasks and increase productivity.

Project gallery:
Portfolio example for North by Toba, CTO
Portfolio example for North by Toba, CTO
Portfolio example for North by Toba, CTO
Portfolio example for North by Toba, CTO
Portfolio example for North by Toba, CTO
Responsibilities:
  • Provided technical guidance that contributed to securing $185K in pre-seed funding;
  • Owned the full software development life cycle from architecture to deployment;
  • Architected and built a cross-browser in-context knowledge base extension;
  • Designed and developed a cross-browser automation extension and accompanying dashboard;
  • Designed architecture for cloud-based automations;
  • Iterated rapidly and developed multiple prototypes and MVPs as the product evolved.
Project Tech stack:
React
Browser extension
HTML
CSS
JavaScript
Puppeteer.js
AWS
Cloud Architecture
Cloud Computing
API
AI
Machine learning
Responsive Web Design
Typescript

Education

2017
Computer Science
Some College

Languages

English
Advanced

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