Enterprise Customer Success Engineer · FlutterFlow
I help engineering teams get complex platforms into production.
I'm Kevinton. I work the engineering side of customer success: onboarding enterprise teams onto a developer platform, architecting the integrations they need, and running the workshops that get their engineers productive. Before that I ran engineering at a Chennai app studio, shipping client work across three continents.
01 · work
Things I've shipped
- 2026
Openlynk
A commercial deep-linking platform built to replace Firebase Dynamic Links: branded short links, real-time analytics, custom domains and native SDKs for iOS, Android and Flutter.
- 2026
Jolna
A published iOS read-later app: paste any link, get a clean ad-free reader, an AI summary, or have it read aloud at your own speed.
- 2026
Late Night Press
A published iOS app that turns world folklore into an audio-first experience, with AI narration, cinematic video and offline reading.
- 2021
National Steps Challenge™
The booking system for Singapore’s national fitness programme: a citizen-facing portal plus the admin, support and location tooling behind it.
350k+bookings processed in launch week
- 2022
iLearnTamil
The mobile app for one of the largest Tamil learning platforms, with an automated content pipeline and automatic student-teacher scheduling.
2,000+paid students onboarded
- 2022
Tonita
The cross-platform client for a natural-language search product, built for a funded startup founded by ex-Googlers.
02 · code
Contributions
Public work under the two handles I've shipped from. kevintonb holds the design experiments and the university work. ffkev is the handle I worked under at FlutterFlow, and most of what sits there began as an enterprise team hitting something: a reproduction, a demo, or a workaround, left public so the answer outlived the ticket.
Personal 6
- neumorph_music_playerNeumorphic music player app design.
- child-abuse-image-classifierImage classifier to detect child abuse, trained on roughly 18,000 images. Won first place at the SRM-IET hackathon.
- clubhouse-redesignA redesign of the Clubhouse UI.
- file_manager_appA files app UI design.
- gab-bboBiogeography-based optimization algorithm.
- 40min_chess_appA chess game built with ChatGPT in under 40 minutes.
FlutterFlow 33
- traversal_test
- dropdown_accessbility_mod
- better_drop_down_my_copy
- dropdown_button_with_accessibilityFork of Flutter's core Dropdown Button widget, with a steady dropdown menu and further additions.
- testing_api
- background_to_foreground_check_appListens for app resume events with WidgetsBindingObserver, for refreshing a session, syncing data or reloading state.
- expand_collapse_all_demo
- ideation_app
- echoes_appBuilt with Dreamflow, showing how to integrate several API endpoints into one app.
- custom_loading_indicator_colorHow to override the colour of the custom loading indicator in the PDF viewer.
- get_android_guidReads the device's Android GUID through MethodChannels in Flutter.
- launch_native_pdf_editor_appOpens and views PDFs through the device's own native PDF viewer.
- app_availability_checker
- sms_autofill_demo
- app_state_rebuild
- main_umbrella_l3
- google_maps_search_app
- umbrella_project_appAn umbrella project holding a wrapper library over two projects and a shared library, with unified ff_commons and ff_theme.
- snap_with_embedded_scroll_exampleA vertical PageView with a ListView embedded in one page, where swipe navigation only fires at the list bounds.
- svg_image_loader_app
- cdn_sake_repo
- pact_dart_example_app
- navigate_on_webview_events_appA FlutterFlow app that listens for events from an embedded WebView and routes on what it hears.
- webview_with_events_appThe web half of that pair: a page that emits events to a Flutter host through window.postMessage.
- echo_api
- internet_connectivity_check_app
- api_timeouts_appManual timeouts added to the API calls in a FlutterFlow project.
- input_issues_resolution
- scroll_to_position_appSmooth scrolling to a chosen item in a FlutterFlow ListView, done both as a custom widget and as a custom action.
- distorted_captcha_appA text CAPTCHA for Flutter web drawn with CustomPainter: rotated glyphs over line noise.
- v3-recaptcha-ff
- get_ios_guidMethod channels and native code to read the device GUID and store it in the Apple Keychain.
- ff_components
03 · more
Other work
- 2022Cots & ApronAn internal process automation tool for Lakshmi Machine Works, replacing a manual paper trail.
- 2023Dont KeepA published minimal note taker with no account and no sign-up: notes stay anonymous, and old ones are meant to be deleted.
- 2020BeanTraderA forex trading platform with auto trading, loss minimisation, trading signals and market news.
- 2020MyGuardianAngelGPSA GPS app surfacing the nearest hospitals, gas stations, hotels, bars and shops in one tap, with 911 emergency calling built in.
- 2021HAPIA healthcare mobile app built with a team of developers for a South African client.
- 2020FlabelThe online store for Pandian Bangles, one of the busiest shops on Chennai’s Ranganathan Street, built when lockdown closed the street.
- 2022ADGIA KYC field app for ADGI Risk Management, turning a paper based verification process into scheduled visits an agent works through on a phone.
- 2021DecidemeA marketplace connecting Filipino households needing home services, plumbing, security, air conditioning repair, with the providers who do the work.
- 2021Cooper DevelopmentAn internal app for Cooper Development, letting employees check in on site and log time and expenses against a project.
- 2019RixchangeA bitcoin wallet and marketplace app built for a team pursuing widespread bitcoin adoption, rather than a niche of existing holders.
- 2022Jom OrderA hyper-local delivery app connecting Malaysian home cooks and chefs directly with nearby customers.
- 2020IllumiNation RecordsA mobile and web app for a Chicago hip-hop label, listing their roster and announcing new releases.
04 · write
Writing
- Hello, world
The first post on kevintonb.com: why the site exists, and what will show up here. Projects being built, notes worth keeping, and the occasional longer essay.
05 · work history
Where I've worked
From freelance web work while I was still studying, to running engineering at a Chennai app studio, to enterprise accounts across APAC and SEA.
Enterprise Customer Success Engineer
FlutterFlowMay 2023 → presentOne of the first hires into the enterprise business, owning the technical relationship with enterprise accounts across APAC and SEA.
FirebaseDynatraceOktaOHS WebLogicIIS
Technical Support Engineer
FlutterFlowMar 2023 → May 2023Front line for a retail user base of roughly 2.8 million, before moving into the enterprise team.
Developer supportDocumentationFirebase
CTO / Lead Engineer
ProtorixMay 2019 → Feb 2023Led engineering at a Chennai app studio, made its cross-platform technology bet, and shipped client work across three continents.
FlutterDartFirebaseTwilioOneSignal
Blockchain Developer (Intern)
Agira TechnologiesSep 2018 → Dec 2018First industry role: crypto tooling and social sentiment pipelines.
Node.jsPythonFlaskNLPBlockchain
Web Developer
FreelanceAug 2016 → Apr 2018Where it started: client web work while still an undergraduate.
JavaScriptNode.jsCCXT
06 · connect
Signals
Where to find me around the internet.