Android Development in Kotlin
Production Android apps using Jetpack Compose, Hilt, Room, and Coroutines, architected with MVVM or MVI for clean separation and fast iteration.
Mobile & Desktop Talent
Hire Kotlin Developers
Modern Kotlin engineering for Android, Kotlin Multiplatform, and backend services — concise code, fewer crashes.
Devlex Infotech's Kotlin developers go beyond Android. They build Jetpack Compose apps, share business logic across iOS and Android with Kotlin Multiplatform, and ship backend services with Ktor and Spring Boot — all in one expressive, null-safe language. Teams that move from Java to Kotlin with us typically see 25-30% less boilerplate and measurably fewer NullPointerException crashes in production.
Since 2020 we have grown to 30+ in-house experts and delivered 25+ projects across 5+ countries, with Kotlin at the core of our mobile practice. Hire a single Kotlin engineer to reinforce your team or a full multiplatform squad; either way you get 24-48 hour onboarding, transparent reporting, and the delivery culture behind our 95% client retention and 4.9/5 rating.
- Android apps with Kotlin, Jetpack Compose, Coroutines, and Flow
- Kotlin Multiplatform (KMP) sharing logic across Android, iOS, and desktop
- Backend services with Ktor and Spring Boot, deployed on AWS and GCP
- Java-to-Kotlin migration with measurable reductions in code volume and crashes
$22/hrStarting Rate
24–48 hrsProfile Sharing
30+In-house Experts
NDAIP Protection
What They Can Do
Our Kotlin Developers Expertise
Kotlin Multiplatform Apps
Share networking, persistence, and business logic across Android and iOS with KMP and Compose Multiplatform, cutting duplicate work without sacrificing native UX.
Java-to-Kotlin Migration
File-by-file migration of legacy Java codebases with full interop, idiomatic refactoring, and CI gates that keep every release shippable throughout.
Kotlin Backend Services
REST and gRPC APIs with Ktor or Spring Boot, Exposed and PostgreSQL persistence, and containerized deployment with Docker and Kubernetes.
Reactive & Concurrent Systems
Structured concurrency with Coroutines and Flow for real-time feeds, background sync, and event-driven features that stay responsive under load.
Quality Engineering
Kotest and JUnit 5 suites, Compose UI tests, static analysis with Detekt and ktlint, and coverage gates enforced in GitHub Actions pipelines.
Engagement Models
Flexible Hiring Models That Fit Your Budget
Scale up, scale down, or switch models anytime — no lock-in, no recruitment fees.
Full-Time Dedicated
A developer who works exclusively on your project.
- Hours160 hrs / month
- Schedule8 hrs/day · 5 days/week
- BillingMonthly
- ReportingDaily / Weekly
- Availability100% dedicated
Part-Time
Ideal for ongoing improvements and smaller scopes.
- Hours80 hrs / month
- Schedule4 hrs/day · 5 days/week
- BillingMonthly
- ReportingDaily / Weekly
- AvailabilityAs per project needs
Hourly
Pay only for the hours you actually use.
- Hours40 hrs minimum
- ScheduleOn demand
- BillingPer hours worked
- ReportingTask-based
- AvailabilityOn demand
From $22/hr
Get Exact Quote
Transparent pricing · zero recruitment fees · dedicated full-time from $2,600/month
Why Devlex
Why Hire Kotlin Developers From Devlex Infotech?
Kotlin Across the Stack
Our engineers apply Kotlin on Android, in shared KMP modules, and on the server — one hire covers more of your architecture.
Working in 24-48 Hours
Shortlists the same day, interviews within 24 hours, and onboarding complete within two business days — no recruitment pipeline to wait on.
Engagement Flexibility
Full-time (160 hrs/mo) from $2,600/month, part-time (80 hrs/mo), or hourly (40-hr minimum), with the freedom to switch as priorities shift.
Contracts That Protect You
NDA first, full IP assignment always, GDPR-aligned data handling, and role-based access that is revoked the day an engagement ends.
Aligned Working Hours
4+ guaranteed overlap hours with US, UK, EU, and Australian teams, plus 24/7 support for anything running in production.
A Track Record You Can Audit
25+ projects, 10+ clients, 95% retention, 4.9/5 rating — and references available on request before you commit.
Hiring Process
Hire Developers In 4 Simple Steps
From first call to onboarded developer in less than a week.
Share Your Requirements
Tell us the skills, experience level, and team size you need — we respond within 24 hours.
Screen Shortlisted Profiles
We share hand-picked, pre-vetted developer profiles within 24–48 hours.
Interview & Evaluate
Interview candidates over video calls, review code samples, and run a paid trial task if you like.
Sign NDA & Onboard
Sign the NDA and agreement — your developers start within days, with full IP protection.
Skills
Skills Our Kotlin Developers Bring
- Kotlin
- Jetpack Compose
- Kotlin Multiplatform
- Coroutines & Flow
- Ktor
- Spring Boot
- Hilt
- Room & SQLDelight
- gRPC
- Kotest
Tools & Tech
Daily Drivers
The frameworks, platforms, and tools our kotlin developers work with every day.
- Kotlin
- Android Studio
- Compose Multiplatform
- Ktor
- PostgreSQL
- Docker
- GitHub Actions
- Firebase
0Years of Experience
0Projects Delivered
0Global Clients
0In-house Experts
0Countries Served
0Client Retention
“Devlex rebuilt our patient scheduling platform from a legacy PHP system into a HIPAA-compliant React and Node.js application. No-show rates dropped 27% within three months of launch, and their team caught compliance gaps our own auditors had missed.”
“They delivered our Flutter app for iOS and Android in 14 weeks, exactly on the quoted budget. App Store rating sits at 4.8 and the weekly sprint demos meant there was never a single surprise.”
“We hired a dedicated team of five from Devlex to build our property management portal, and eighteen months later they still feel like our own employees. Releases ship every two weeks and platform uptime has held at 99.95%.”
FAQ
Hiring Kotlin Developers — FAQs
Everything you need to know before starting your project. Still have questions? Talk to our team.
Kotlin engineers start at $22/hour, with dedicated full-time developers from $2,600/month. Multiplatform work is quoted the same way — one transparent rate covering the whole engagement.
Within 24-48 hours. Profiles arrive the same day you brief us, and once you approve a candidate they are in your repos and standups within two business days.
Yes — we sign your NDA or provide ours before any technical discussion, assign 100% of IP to you contractually, and comply with your security policies including VPN-only and SSO access.
Every engagement guarantees at least 4 hours of overlap with US or European business hours, with full-shift alignment available for dedicated teams and 24/7 production support.
We provide a free replacement with a managed handover, usually within a week. You are never locked in — engagements scale up, down, or swap with 30 days notice.
Explore More Talent
Write Less Code, Ship More Features with Kotlin
Get matched Kotlin developer profiles within 24 hours — Android, Multiplatform, or backend. Interview free and onboard within 48 hours.