Freelance Mobile Engineers in United States
Freelance Mobile Engineers in United States
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Marc Brown
pro
Elizabeth, USA
Technical Partner for Founders
$10k+
Earned
12x
Hired
5.0
Rating
289
Followers
expert
expert
+3
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Technical Partner for Founders
4
Mobile App Backend Stabilization Using Firebase
4
120
1
Secure Docker Deployment on Synology NAS
1
32
0
ThreatDetect Security Dashboard
0
29
1
Replit App Deployment Stabilization
1
75
Mobile Engineer
(1)
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Marco Wong
pro
Bedford, USA
Full Stack Developer | AI Agent Developer
$25k+
Earned
15x
Hired
5.0
Rating
77
Followers
Follow
Message
Full Stack Developer | AI Agent Developer
4
Full-stack Developer for Tradytics Website
4
19
7
Flutter Developer for Honey Health Diabetes Management App
7
47
6
iOS Mobile developer
6
25
7
Celebrity fantasy video workflow is live on MORPHIC. 1. Upload your photo as the identity anchor 2. Enter the superstar’s name as the second character 3. Describe the scene or activity you want to do together 4. Boom https://www.morphic.com/en/workflows/019da0f9-7e9a-707c-b6e5-fbf05be1bb42/celebrity-fantasy-video
1
7
361
Mobile Engineer
(3)
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Singular Innovation
pro
United States
Co-innovate smart apps with AI, strategy, and agility
$25k+
Earned
3x
Hired
5.0
Rating
80
Followers
Agency
Certified
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Co-innovate smart apps with AI, strategy, and agility
3
Osmo Wallet - Fast & Secure Bitcoin Wallet App
3
85
1
Forge - Mobile CRM for High-Value Sales Professionals
1
28
1
Charli Charging – EV Charging & Payments App
1
44
16
Cannabolt – Bitcoin-Powered Payments for the Cannabis Industry
16
251
Mobile Engineer
(5)
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Aurelien GERIER
pro
Los Angeles, USA
Expert & Passionate Fullstack Engineer 11+ yrs exp & Media
$50k+
Earned
5x
Hired
4.9
Rating
78
Followers
Top
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Message
Expert & Passionate Fullstack Engineer 11+ yrs exp & Media
1
WhatsApp & RCS Integrated Platform for ParaVet.live
1
27
8
Base.club Miami
8
216
2
Waking Up
2
124
0
Led delivery of a cloud-native K-12 student wellness platform that helps counselors monitor wellbeing, surface at-risk students, and act early—balancing product velocity with FERPA/COPPA-aware design and multi-tenant isolation (API RBAC, PostgreSQL RLS, district-scoped analytics). → Owned technical direction and delivery rhythm across a TypeScript monorepo (pnpm/Turbo): backend API, web app, shared packages, DB migrations, CI/CD gates, and staged deploys to GCP (e.g. Cloud Run), aligning engineering work with roadmap and release risk. → Orchestrated an AI assistant for counselors on Google Vertex AI (Gemini): system prompts, safety settings for K-12, function-calling tool design, multi-round tool loops, and strict separation so UI widgets render from verified tool results—not model hallucinations—with tracing/feedback hooks (e.g. Langfuse) for quality and auditability. → Drove access-control and compliance posture for sensitive student data: role/permission middleware, tenant-scoped queries, and defense-in-depth database policies—documentation and evidence suitable for enterprise security reviews (e.g. SOC 2–style narratives). → Partnered on product and program management: phased feature rollout, PR/branch discipline, and clear ownership of scope vs. risk so pilot schools could onboard without compromising data boundaries. → Shaped integrations and platform boundaries: Firebase auth, Neon PostgreSQL + Drizzle ORM, real-time patterns, BigQuery analytics isolation, and operational practices (testing, lint, type-check) that keep the stack maintainable at scale. → Established a disciplined, AI-accelerated delivery model—not ad-hoc prompting: Cursor rules and Claude skills/agents for repeatable workflows; Husky + lint/type-check/test gates; GitHub Actions CI/CD; Cursor Cloud Agents for automated PR review; and daily monitoring of E2E, coverage, and critical issues—owning AI-orchestrated implementation while enforcing accuracy, consistency, and observability
0
2
Mobile Engineer
(3)
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Rulian Estivalletti
pro
Pembroke, USA
Fullstack Web & Mobile Engineer Bringing Ideas to Life
$1k+
Earned
1x
Hired
5.0
Rating
3
Followers
Follow
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Fullstack Web & Mobile Engineer Bringing Ideas to Life
0
Better Online Dating.
0
21
0
Framework Native A/B Testing
0
10
2
Wonderful Software (https://wonderful.so) is my portfolio piece. It's where I talk about my process, my portfolio, and my thought on questions people ask.
1
2
90
2
Show & Tell is a tool I created for promoting my projects. Gathering marketing material can be quiet time consuming. Producing shareable product videos even more so. What I wanted was a way to allow AI to drive showcasing my projects.
2
2
96
Mobile Engineer
(2)
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Anton Zalis
pro
Fort Lauderdale, USA
Design and development studio - web, mobile, AI.
5.0
Rating
25
Followers
Follow
Message
Design and development studio - web, mobile, AI.
1
For the uninitiated, NRFI is the "espresso shot" of sports betting. You’re betting that both teams will record three outs in the first inning without anyone crossing home plate. Six outs. Zero runs. Total chaos. In an age of TikTok-length attention spans, waiting three hours for a game to end feels like a lifetime. NRFI gives you a result before your DoorDash even arrives. The Market: Micro-betting is currently the fastest-growing segment in the $15B+ US sports betting industry. The Demographic: It captures the "second screen" generation that wants high-frequency engagement. The Problem: Until now, "researching" an NRFI bet meant having 14 browser tabs open, refreshing a weather map, and praying to a Twitter tipster named @BaseballBilly69. That’s why we built NRFI Zone. 🚀
1
85
0
Fantabase - Mobile App Design & Development
0
11
0
Inura: AI-Powered Astrology Mobile App Design
0
7
0
Rumble Food - Restaurant Discovery Mobile App
0
11
Mobile Engineer
(6)
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NerdHeadz
pro
Sheridan, USA
AI-Powered Custom Software Development Agency
5.0
Rating
9
Followers
expert
Follow
Message
AI-Powered Custom Software Development Agency
1
Trucking88 — Transport Management SaaS Platform NerdHeadz developed a comprehensive transport management SaaS platform for Trucking88, available as both web and mobile applications. The system incorporates CRM and ERP tools to streamline fleet management, order processing, truck repairs, and payroll management. Key features include dispatch management, driver assignment, load tracking, invoicing with QuickBooks integration, and a tiered membership system that empowers small trucking businesses with access to core resources. The platform was built on Bubble.io (http://Bubble.io) with FlutterFlow for the mobile app. Technologies: Bubble.io (http://Bubble.io), FlutterFlow, QuickBooks API, Stripe Services Provided: CustomSoftware Development, Mobile Development, UX/UI Design Results: Full SaaS platform with CRM/ERP capabilities deployed Mobile app for drivers and dispatchers QuickBooks integration for automated accounting Tiered membership system for scalable business modelWebsite Link:
1
32
0
Trivvs - No Code Real Estate Investment App
0
12
1
AI Call Center — Automated Sales Calls Platform NerdHeadz built an AI-powered desktop application that automates outbound sales calls. The platform uses Bland.ai (http://Bland.ai) forAI voice agents, handles real-time call transcription, and provides campaign management tools for sales teams. Key features include automated call routing, phone number provisioning, conversation transcription, and a comprehensive admin dashboard for managing sales campaigns. The system was designed to scale with growing call volumes while reducing the workload on human agents. Delivered in 1.5 months. Technologies: Bland.ai (http://Bland.ai), AI Voice, Real-time Transcription, Desktop App Services Provided: AI Development, UX/UI Design, Custom Software Development Results: Automated outbound sales call system deployed Real-time call transcription and campaign management Phone provisioning and AI voice agent integration Delivered within 1.5-month deadline
1
39
1
NerdHeadz AI — Project Estimation Tool NerdHeadz developed an internal AI-powered estimation tool to automate project scoping and cost estimation. The tool uses OpenAI's language model combined with historical project data to analyze client requirements and generate comprehensive project breakdowns including timelines, tech stack recommendations, and cost estimates. A chat interface allows clients to describe their project, and the system delivers polished PDF reports in under 5 minutes. The tool continuously improves its accuracy by learning from new project data, helping NerdHeadz respond to leads faster and with greater precision. Technologies: OpenAI API, Python, PDF Generation, Chat Interface Services Provided: AI Development, Custom Software Development Results: Project estimation reports generated in under 5 minutes (was hours manually) Self-learning AI that improves accuracy with each new project Automated PDF report delivery to clients Reduced estimation workload by 90%
1
16
Mobile Engineer
(2)
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Raymond Li
Sugar Land, USA
Full Stack Web & Mobile | Framer Expert | 8+ Years Pro
1x
Hired
17
Followers
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Message
Full Stack Web & Mobile | Framer Expert | 8+ Years Pro
2
Hairstyles for your face
2
27
2
Workout Planner & Gym Trainer
2
30
3
Viber for Business
3
114
2
Make the jump to web3
2
22
Mobile Engineer
(2)
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Message
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