Why outstaff Kotlin talent for mobile payment apps for merchants?
Direct hiring in the U.S. can stretch to 12-16 weeks, inflate payroll, and lock you into long-term commitments. Smartbrain’s augmentation model lets you access battle-tested Kotlin engineers who already know EMV, PCI-DSS, and wallet SDKs—without the overhead of recruiting, HR, and benefits. You get instant team elasticity: scale up for a peak release, scale down after launch. All IP stays yours, while our dedicated Customer Success layer handles onboarding, compliance, and performance reviews. Result: faster time-to-revenue, predictable costs, and the freedom to focus on product, not paperwork.
Why choose Kotlin outstaffing for mobile payment apps for merchants?
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What tech leaders say
“Smartbrain’s Kotlin squad plugged into our existing micro-service architecture and delivered a tap-to-pay module in half the planned sprint cycle. Coroutines, Ktor and Multiplatform were used flawlessly. We cut backlog by 38 stories, while my core team stayed on roadmap features.”
Laura Mitchell
CTO
MetroPay Systems
“Within three days I had two senior Kotlin developers with deep EMV & NFC experience. They adopted our Clean Architecture pattern, wrote exhaustive unit tests and boosted release velocity by 27%. Onboarding felt ‘zero-gravity’ compared to traditional hiring.”
Ethan Brooks
Head of Mobile Engineering
RetailSwipe Inc.
“Smartbrain handled recruitment, payroll, even equipment logistics. Their Kotlin multithreading expertise crushed our concurrency bugs, lowering crash rate from 2.8% to 0.4%. Product managers finally sleep at night.”
Priya Sanders
Product Director
QuickServe POS
“We needed PCI-DSS level security and Smartbrain delivered.” Their augmented engineers implemented encrypted token storage using Jetpack Security and Kotlin Flow, trimming latency by 32%. Stakeholders noticed the difference immediately.”
Robert Chen
VP Technology
FirstWave Credit Union
“Our internal devs were new to Kotlin Multiplatform. Smartbrain’s specialists mentored them, set up KMM, and delivered iOS parity in four sprints. Integration friction? Zero. Adoption curve? Shallow. Projected ROI moved up by 19%.”
Jasmine Parker
Mobile Lead
UrbanFare Markets
“Holiday peak could have killed us. Smartbrain added three senior Kotlin devs experienced in Stripe Terminal SDK; throughput improved by 45 TPS. After season, we smoothly down-scaled—no HR red tape.”
Daniel Rivers
Engineering Manager
GiftCartel Co.
Industries we empower
Retail & eCommerce
Challenge: High-volume checkouts and loyalty wallets. Kotlin-powered mobile payment apps for merchants integrate barcode, NFC, and in-store POS while ensuring PCI compliance through augmentation services that let you ramp capacity for Black-Friday-like peaks.
Hospitality & Food-Service
Augmented Kotlin developers build mobile payment apps for merchants for table-side ordering, room service billing, and tip-splitting. They handle offline-first data sync, QR ordering, and tokenized payments, slashing wait-times and boosting upsell.
Transportation & Mobility
Cities run on fast taps. Kotlin teams design wallet-ready mobile payment apps for merchants for buses, scooters, and parking, adding distance-based fares, real-time receipts, and secure ticket sharing, all outstaffed for predictable burn.
FinTech & Neobanks
Need instant P2M transfers? Augmented Kotlin experts craft mobile payment apps for merchants with KYC flows, ledger micro-services, and card tokenization, accelerating go-live while internal teams stay on core banking APIs.
Healthcare
HIPAA-aware Kotlin engineers embed mobile payment apps for merchants into tele-health portals, automating co-pays and invoicing, with encrypted PHI handling and audit-trail logging, delivered via cost-flexible outstaffing.
Events & Ticketing
Augmented Kotlin squads roll out mobile payment apps for merchants supporting RFID wristbands and dynamic pricing. They manage surge loads during on-sale moments without locking you into full-time headcount.
Utilities
Kotlin devs build bill-pay mobile payment apps for merchants with smart-meter data, autopay scheduling, and realtime outage credits. Outstaffing keeps OPEX in check amid regulatory swings.
Education
Campus stores and cafeterias adopt mobile payment apps for merchants. Augmented Kotlin talent integrates student ID wallets, subsidy rules, and parental controls—scalable across semesters.
Gaming & Entertainment
Kotlin pros craft in-app purchase flows and mobile payment apps for merchants for arcades, ensuring low-latency authorizations and fraud analytics, all while giving studios staffing agility.
mobile payment apps for merchants case studies
Tap-to-Pay Rollout for Convenience Chain
Client: 2,400-store US convenience retailer.
Challenge: Legacy POS couldn’t support mobile payment apps for merchants or curbside checkout.
Solution: A four-person augmented Kotlin unit set up KMM, refactored Java modules, and built an offline-first payment SDK. They coordinated with Acquirer & HCE vendors via weekly demos.
Result: 37% faster checkout, 48% fewer aborted carts, and rollout across all stores in 6 months.
QR Wallet for Casual Dining Franchise
Client: 300-location restaurant group.
Challenge: Needed table-side mobile payment apps for merchants without new hardware.
Solution: Two Smartbrain Kotlin engineers embedded for 5 months, integrated Stripe Terminal SDK and built a Kotlin Flow-based QR scanner. Async coroutines cut response time.
Result: 24 % increase in table turns, annual savings of $1.2 M in device costs, and NPS up by 15 pts.
In-App POS for Ride-Share Fleet
Client: Nationwide ride-share startup.
Challenge: Drivers lacked unified mobile payment apps for merchants for ancillary sales (snacks, charging cables).
Solution: Augmented Kotlin trio built BLE-enabled micro-POS with Jetpack Compose UI, integrating with driver wallet APIs.
Result: Ancillary revenue up 62%, transaction latency down to 320 ms, feature shipped 8 weeks ahead of roadmap.
Book a 15-Minute Call
120+ kotlin engineers placed, 4.9/5 avg rating. Engage proven specialists for your mobile payment apps for merchants and start in under a week.
Our Kotlin outstaffing services
Full-Cycle Kotlin Payment App Dev
Augmented squads handle concept, UI/UX, Kotlin code, QA, and release, giving you a turnkey mobile payment apps for merchants solution without diverting core staff.
Legacy Java-to-Kotlin Migration
Specialists refactor monolithic Java POS codebases into modern Kotlin, improving safety with nullability and reducing crash rates—on demand, pay-as-you-go.
Payment SDK & Library Creation
Outstaffed Kotlin talent builds white-label SDKs for in-app payments, letting partners embed your rails quickly while you keep IP ownership.
Security & Compliance Hardening
Experts implement tokenization, end-to-end encryption, and audit logs, ensuring mobile payment apps for merchants meet PCI-DSS and SOC 2 with minimal internal effort.
Performance & Scalability Tuning
Kotlin pros analyze coroutines, Flows, and networking to cut payment latency and handle spikes—crucial for high-traffic merchant periods.
Ongoing Maintenance & SLA Support
Keep your mobile payment apps for merchants running 24/7 with dedicated, outstaffed Kotlin engineers who monitor, patch, and enhance features under clear SLAs.
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