Outstaffing seasoned Java engineers is the fastest, lowest-risk path to solving payment gateways comparison challenges.
Skip long interview cycles, payroll overhead, and compliance headaches. With Smartbrain, you tap one pre-integrated talent pool—developers who have already built, tuned, and certified multi-gateway stacks for finance, retail, and SaaS leaders. You keep full product ownership while we handle HR, legal, and retention. Scale head-count up or down in days, pay only for the expertise you use, and inject fresh domain insight without derailing your core team.
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What Tech Leaders Say
“Smartbrain’s Java pro plugged into our Spring Boot stack in 24 hours. He unified Stripe, Adyen, and PayPal, cut flaky transactions by 38 %. Our core team stayed focused on roadmap while throughput jumped.”
Ethan Brooks
CTO
Mercury Pay Systems
“Their augmented developer rebuilt our gateway layer with Java 17 and reactive streams. Checkout latency fell 27 % and we went live two weeks before peak traffic.”
Linda Chen
VP Engineering
ShopNimble Inc.
“We’d stalled on Braintree integration. Smartbrain assigned a senior in 36 hrs who wrote clean Hexagonal Java, added test containers, and lifted coverage to 92 %. Customers now switch processors in-app.”
Marcus Hill
Dev Team Lead
LedgerLoop Software
“Regulated industry, zero time. Their consultant hardened our Java payment service, passed a PCI audit first try, and automated tokenisation across five gateways—saving us an estimated $120 k.”
Rachel Gomez
Chief Compliance Officer
MediClaim Plus
“Smartbrain embedded two JVM gurus who added Apple Pay & Google Pay via Adyen within sprint one. Revenue grew 13 % MoM thanks to new payment options.”
Noah Price
Head of Product
StreamSphere Media
“Our connected-car app needed on-the-go payments. The contracted Java expert delivered a lightweight gateway abstraction, cut CPU usage 19 %, and met tight ISO 15118 deadlines.”
Olivia Rogers
Engineering Manager
AutoLink Mobility
Industries We Power
FinTech & Banking
Card routing, fraud rules, and reconciliation demand spotless payment gateways comparison. Our augmented Java engineers integrate PSD2 APIs, build settlement micro-services, and ensure instant KYC checks for neobanks and legacy cores alike—speeding release cycles while maintaining SOC2 & PCI-DSS compliance.
eCommerce & Retail
Cart abandonment melts away when checkout is frictionless. Java specialists optimise multi-gateway failover, add BNPL, and localise payment flows for 100+ currencies—delivering sub-second response even on Black-Friday spikes.
Travel & Hospitality
Multi-leg bookings require resilient split payments. Our developers embed robust comparison logic that auto-selects the cheapest processor per region, handles refunds, and syncs with GDS systems—keeping margins intact.
Healthcare & InsurTech
HIPAA meets PCI. Augmented Java teams encrypt PHI, tokenise card data, and orchestrate gateway comparison to minimise fees for tele-health platforms while satisfying stringent regulatory frameworks.
Media & Entertainment
Subscription churn is revenue lost. We integrate recurring billing gateways, manage retries, and compare processor uptimes in real time, boosting lifetime value for OTT and streaming services.
Automotive & Mobility
Connected vehicles bill per mile, minute, or kWh. Java augmentation enables in-car wallets, negotiates gateway fees, and ensures ISO 15118 payment compliance across global charging networks.
SaaS & Cloud Marketplaces
Usage-based billing hinges on accurate gateway data. Our engineers craft modular billing engines, perform gateway comparison, and surface analytics for product-led growth teams.
Education Technology
Cross-border tuition needs local methods. Augmented Java talent integrates Alipay, ACH, and card processors, comparing fees and success rates to lower student costs and raise conversions.
Gaming & Esports
High-frequency micro-transactions strain legacy payments. We embed gateway comparison logic, add fraud scoring, and keep in-game purchases real-time—even at 100 k TPS.
payment gateways comparison Case Studies
FinTech Gateway Overhaul
Client: VC-backed digital bank
Challenge: Legacy core blocked new features due to slow payment gateways comparison.
Solution: Two Smartbrain Java seniors re-architected the payment façade, abstracted five processors behind a Spring Cloud layer, and added real-time fee analytics.
Result: 37 % latency reduction, $1.2 M annual fee savings, rollout finished in 11 sprints.
Global Retail Checkout Revamp
Client: Omni-channel apparel retailer
Challenge: Cart conversions sagged because payment gateways comparison favoured a single costly processor.
Solution: Augmented Java team introduced rule-based routing, Kotlin coroutines, and Stripe/Adyen fallback.
Result: 18 % conversion lift, 29 % fee drop, Black-Friday uptime hit 99.997 %.
Subscription SaaS Billing Modernisation
Client: B2B analytics platform
Challenge: Payment gateways comparison logic could not support regional payment methods.
Solution: Three Java/Kotlin experts from Smartbrain rebuilt the billing engine into micro-services, integrated 8 gateways, and added GraphQL reporting.
Result: 52 % new-market revenue, 0 chargeback escalations in first quarter.
Book a 15-Minute Call
120+ Java engineers placed, 4.9/5 avg rating. Get the payment gateways comparison expertise you need—risk-free trial, transparent weekly rate.
Our Core Services
Multi-Gateway Integration Audit
Senior Java engineers review your existing codebase, benchmark gateway response times, and map hidden fees—delivering a prioritized roadmap to optimise payment gateways comparison without disrupting production.
Custom Gateway Adapter Dev
Need a niche processor? Our outstaffed Java team crafts clean adapters, handles SDK quirks, and plugs them into your Spring, Micronaut, or Quarkus stack—faster than hiring full-time.
Latency & Load Optimization
Through async Java, Netty, and non-blocking IO, we shave milliseconds off each transaction, ensuring your payment gateways comparison beats customer expectations worldwide.
PCI DSS Compliance Upgrade
Our specialists harden code, implement tokenisation, and generate audit evidence—letting you pass PCI scope while continuing gateway comparison experiments.
Gateway Migration to Microservices
Monolith slowing you down? We refactor payment logic into Kubernetes-ready Java micro-services, enabling independent deployment and A/B gateway comparison.
24/7 Payment Monitoring
Outstaffed engineers set up Grafana, Prometheus, and alerting, tracking every gateway’s SLA and auto-rerouting traffic to maintain 99.99 % uptime.
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