Toni Ioanas

Senior React Native Developer
+40742113692
Brasov, Romania

Professional Summary

10+ years building software, 6+ years in mobile with React Native/Expo. Worked everywhere from startups to Fortune 500s.

Strong technical chops plus people skills that actually matter. Can talk code with developers and business with executives. Good at breaking down complex stuff into simple terms.

Hands-on experience with the full JavaScript ecosystem. Built and shipped apps that real people use every day.

Work well in fast-paced environments where requirements change. Prefer working with teams that care about code quality and user experience. Always learning new tech but don't chase every shiny thing.

Core Competencies

React Native Javascript Typescript Redux Jotai TanStack Sonar Sentry IOT ESP32 NX monorepo Expo Git BitBucket Azure AWS Cursor Claude RxJava RxJS

Professional Experience

Senior Software Engineer

Vision Plus • Brasov
2025-12 - 2026-04

Internal Whatsup AI for managing interactions with clients.

  • Decide intents, forbidden topics, tone, and when humans take over.

  • Business API webhooks in, messaging API out, handle retries/rate limits.

  • Normalize each message into a turn, queue async work, dedupe events.

  • Keep short chat history + optional CRM/user id; trim before the model.

  • Chunk docs → embed → vector DB → retrieve/rerank top passages per question.

  • Prompt “only from retrieved text + tool outputs”; cite/avoid hallucinations.

  • APIs for orders/tickets/scheduling; don’t guess what systems can return.

  • PII rules, injection-aware prompting, validation, confidence-based escalation.

  • Trace logs (query, sources, latency), metrics, and improve docs/prompts from failures.

  • Pilot → measure deflection/escalations/errors → iterate knowledge + policies.

Senior React Native developer

Rotork • remote
2024-10 - 2025-11

Developed cross-platform mobile app for Rotork's industrial flow control business, serving field technicians across oil & gas, water & power, and chemical industries.

Key Achievements:

  • Built React Native app for iOS/Android with offline capabilities for remote industrial sites

  • Integrated IoT connectivity for monitoring industrial actuators and flow control equipment

  • Integrated state management via redux toolkit.

  • Improve app performance especially on android devices.

  • Unit tests with jest.

  • Configure and maintain CI/CD.

The app enables field personnel to maintain and optimize industrial flow control systems worldwide.

Senior React Native Developer

Quarta Energy • remote
2023-06 - 2024-09

Key Achievements:

  • Implemented a Continuous Integration/Continuous Delivery (CI/CD) pipeline that improved code quality and reduced time-to-deployment.

  • Created a monorepo architecture to address client needs

  • Implemented push and local notifications

  • Implemented real time

  • Implemented multidevice support and data sync

  • SRP6A authentication + AES-256-GCM encryption + Protocol Buffers + Secure session management for IoT device onboarding with WiFi configuration.

Senior React Native Developer

NDA • remote
2022-10 - 2023-05

Developed cross-platform mobile application using React Native and Expo framework, enabling users to create digital artwork and transform sketches into AI-generated photographs.

Key Achievements:

  • Built React Native app with Expo for iOS/Android using Skia graphics library for real-time canvas drawing and touch gesture recognition

  • Integrated AI image generation API to convert user sketches into photorealistic images

  • Implemented custom drawing tools, brush stroke detection

  • Configured and maintained CI/CD pipeline for automated testing and deployment

  • Optimized app performance for smooth drawing experience across different device specifications

The app provides an intuitive drawing interface where users can create freehand sketches and watch as artificial intelligence interprets and generates corresponding photographic images from their artistic input.

Senior React Native Developer

Boston - Whaler • remote
2020-01 - 2022-09

Key Achievements:

  • Implemented a Continuous Integration/Continuous Delivery (CI/CD) pipeline that improved code quality and reduced time-to-deployment.

  • Worked in an monorepo architecture

  • Implemented responsive UI components with custom styling and navigation

  • Integrated real-time GPS tracking using device location services

  • Implemented offline ready

  • Implemented push and local notifications

  • Implemented mqtt to update the app in real time

  • Connected engine diagnostics, battery monitoring, and bilge data visualization

  • Built customizable dashboard for multi-engine status monitoring

Senior React Native Developer

SeaRay • remote
2018-01 - 2019-12

Key Achievements:

  • Implemented a Continuous Integration/Continuous Delivery (CI/CD) pipeline that improved code quality and reduced time-to-deployment.

  • Worked in an monorepo architecture

  • Implemented geofencing

  • Implemented push and local notifications

  • Implemented offline ready support + caching

  • Implemented mqtt to update the app in real time

  • Implemented multidevice support and data sync

Education

Computer Science

Universitatea Transilvania
2001-09 - 2006-06
References available upon request