Toba
From United States (UTC-5)
Lemon.io stats
1
offers now 🔥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
Main technologies
Additional skills
Direct hire
PossibleReady to get matched with vetted developers fast?
Let’s get started today!Experience Highlights
Principal Software Developer
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.








- 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).
CTO
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.











- 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.
Lead Software Developer
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.











- 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
Lead Software Developer
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.











- 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.
CTO
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.





- 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.