SENIOR FULL-STACK MOBILE DEV FLUENT ENGLISH

Full-Time Remote | ৳61000/mo | $500 USD/mo + $500 / every 10K users
BDT 16K - BDT 44K/mo salary in bangladesh average

The App (Quick & Clear)

AI Fitness + Nutrition for women 35–55 (Italy → Global)

• Workout Sessions:fitness app workout (video + voice)

• AI Food Scanner: Snap food → tell you if the food is healthy or not with a recommend healthy option + custom recipe

• AI Motivation: Daily custom quote (“You crushed legs yesterday — rest or repeat?”)

• Tech Stack:

• Frontend: Flutter (mobile), React + CSS Modules (web onboarding/paywall)

• Backend: Laravel (admin + API) on AWS

• AI: OpenAI (GPT-4, embeddings, function calling)

Your Mission (From Your POV – The Dev)

“I improve the product every day faster scanner, smoother workouts, smarter AI quotes. I code UI in Flutter + React, fix Laravel APIs, and install every marketing tool so GA4, Mixpanel, Superwall, Meta/TikTok pixels fire 100%. make sure the app works perfectly. Growth/Product handles ads & A/B I just set up the tech.”

My Vision (From Me – Founder @gritti_blinders,)

“I need one elite dev who owns the full product + technical marketing setup. You’ve shipped fitness/AI apps, master Flutter UI + React flows, integrate OpenAI, and install GA4, Mixpanel, GTM, pixels, Superwall so Growth can just read. You improve UX, add features (30-day challenge, AI companion), and run the dev agency. Italy launch. English scale. Equity for the one who 10x’s us.”

Day

You Ship

Mon

Fix Flutter workout UI lag → merge via agency

Tue

Improve React paywall animation → live in 2 hrs

Wed

Improve and train Ai for the Food section

Thu

Install Superwall paywall event + GA4 purchase tracking

Fri

Improve the admin panel (now very basic)

Must-Have (Top 1% — Dev + UX + Marketing Tech)

• 3+ yrs shipping LIVE mobile apps : Fitness, AI, health = instant hire
• Fluent english
• Flutter (Dart) + UI Expert : pixel-perfect, animations, state (Riverpod/Bloc)
• React + CSS Modules : built full onboarding/paywall (live URL)
• Laravel (PHP) : APIs, admin panel, KPI queries
• OpenAI / AI APIs : GPT-4, prompt engineering, embeddings
• Figma → Code : UI handoff, design system
• AWS Basics : EC2, S3, CloudFront, SSL, CI/CD
• Agency Leadership : Daily 10 AM TH standup, Jira, PR reviews, Loom

Tool

You Do

GA4 + GTM

Full event setup, debug, 100% firing

Mixpanel

User properties, funnels, cohorts

Meta + TikTok Pixels

iOS/Android + web, LTV, CA events

Superwall SDK

Install, paywall templates, A/B events

RevenueCat / Stripe

Subscription webhooks, custom checkouts

Email Marketing

set up email marketing api

Clarity,Hotjar

install code and check that work