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Nikita B.
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Nikita B.

iOS Developer | Swift | SwiftUI | 20+ released iOS apps | fintech apps

Clients don't pay for code - they pay for results. That's what I focus on. I help startups and product teams deliver high-quality iOS apps - on time, with clean architecture and measurable results. Over 7 years, I've built and shipped 20+ native iOS applications across fintech, healthcare, CRM, and edtech. I work across the full cycle: from scratch builds to legacy upgrades, bug fixes, and team coordination as a tech lead. What I've delivered: - Built 20+ production apps used by real customers across 4 industries - Helped teams reduce development friction by leading designers, backend devs, and QA - Delivered clean, scalable codebases using Swift, SnapKit, Firebase, and REST APIs - Converted Figma designs into pixel-perfect, performant UIs - Helped clients ship faster by establishing Agile workflows and JIRA-based task management Domains where I've driven results: - Fintech - banking, payments, card and account management - Healthcare & Wellness - activity tracking, reminders, sleep analytics - CRM - client management tools for service businesses - EdTech - interactive lessons, progress tracking, engagement features If you need an iOS developer who takes ownership and delivers - let's talk. Main technology stack UI: Swift, SwiftUI, UIKit, SnapKit, Interface Builder Networking & backend: REST API, Firebase (Database, Storage), Alamofire, Swagger, Realm AI: ChatGPT API, Apple Intelligence, Google Gemini Analytics: Google Analytics, Firebase Crashlytics, Google Tag Manager Maps: Google Maps, Apple Maps Social integrations: Firebase Auth, Facebook, VK, Instagram Subscriptions & Paywalls: StoreKit 1, StoreKit 2, RevenueCat Version control: GitHub, GitLab, Bitbucket Other: APNs, StoreKit, Firebase Messaging, Photoshop, Figma, Postman

🇷🇸Belgrade, Serbia$45/hr100% JSS5.00 (5)Since Nov 2019
GlobeUpwork

Earnings and projects

MRR
$142

Last 6 months ÷ 6

World#125,105 / 412k
🇷🇸Country#1,122 / 4,015
Revenue, last 30 days
$0

Last 6 months: $851

Total earnings
$18k

Billed in all: $18k

World#149,458 / 412k
🇷🇸Country#1,911 / 4,015
Per project
$1.3k

$170 in the last 6 months

World#106,246 / 412k
🇷🇸Country#1,211 / 4,015
Projects, last 6 months
5
80% fixed20% hourly
World#41,747 / 412k
🇷🇸Country#331 / 4,015
Projects in all
14

Across 17 contracts

59% fixed41% hourly
World#168,286 / 412k
🇷🇸Country#2,048 / 4,015

Earnings, last 30 days

$17.9kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$17.6k$17.8k$18.0k$18.2kOct 9Oct 24Nov 8

Skill rankings: Top 16% in In-App Advertising

Ranked by MRR among everyone on Upwork with the skill.

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  2. #17tvOS66 freelancers · 🇷🇸 #1Top 26%
  3. #24In-App Advertising147 freelancers · 🇷🇸 #2Top 16%
  4. #57iPhone & iPad Apps174 freelancers · 🇷🇸 #1Top 33%
  5. #62Mobile Development Framework242 freelancers · 🇷🇸 #1Top 26%
  6. #75In-App Subscription175 freelancers · 🇷🇸 #1Top 43%
  7. #130iPad App Development446 freelancers · 🇷🇸 #3Top 29%
  8. #173UIKit818 freelancers · 🇷🇸 #2Top 21%