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 a 30+ person in-house team, with Kotlin at the core of our Android and multiplatform work. Hire a single Kotlin engineer to reinforce your team or a full multiplatform squad; either way you get 24-48 hour onboarding and reporting you can check against the repository.
- 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
$15/hrStarting Rate
24–48 hrsProfile Sharing
60+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 $15/hr
Get Exact Quote
Quoted before work starts · no recruitment fees · dedicated full-time from $2,400/month · scoped tasks from $12
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 $2,400/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
A written estimate with the assumptions listed, code you own from the first commit, and a client reference call arranged 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
0Code Ownership
How We Work
What You Get In Writing
Terms that go into every agreement we sign. See all client commitments.
A Written Price Before Work Starts
Every job gets a scope and a number in writing first — a fixed price for defined work, or an hourly rate with a capped estimate. If scope changes, we re-quote before we build, not after.
You Own the Code
Source code, designs, and data are yours. We work in your repository where possible, hand over full documentation, and transfer everything at the end. No license fees, no hostage situations.
NDA Before You Share Anything
We sign your NDA — or send ours — before the first technical conversation. Your idea, your data, and your customer information stay confidential during and after the engagement.
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 $15/hour, with dedicated full-time developers from $2,400/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.