Hire Integration Platform Payment Engine Devs

Top-Tier Integration Platform Payment Engine Experts

Access pre-vetted JavaScript specialists who have delivered complex payment orchestration at scale. Onboard an engineer in just 48 hours on average.

Start in under 2 days
Senior-level vetting assured
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Lower risk, faster value.

Hiring full-time engineers to untangle an integration platform payment engine means weeks lost on recruitment, payroll, and compliance. Outstaffing with Smartbrain.io delivers battle-tested JavaScript talent on demand—already screened for PCI, gateway APIs, and high-volume transaction logic. You skip employer obligations, pay only for productive hours, and can scale the team up or down in days, not months. Our engineers embed into your sprint rhythm while we handle HR, legal, and replacements. That’s cost-efficient speed your finance team will love.

Instant Startup

48-Hour Onboarding

Senior-Level Only

No Recruiting Fees

Elastic Scaling

Timezone Overlap

IP & PCI Safe

Transparent Rates

Dedicated PM Support

Optional Buyout

Zero Payroll Hassle

Performance Guarantees

CTO Testimonials: Integration Platform Payment Engine Results

“We replaced two stalled vendors in 48 hours.”
Smartbrain’s JavaScript developers rebuilt our payment routing microservice, slicing checkout latency by 32 ms. Their vetted talent synced with our Jira and CI pipeline on day one, letting my core team focus on new features instead of firefighting.

Ethan Brooks

VP Engineering

PulsePay Systems

“Holiday traffic tripled and nothing broke.”
Three Smartbrain augmentation engineers optimised our tokenization service and horizontal scaling scripts, keeping transaction throughput above 8 000 TPS. Onboarding took a morning stand-up, saving us weeks of local hiring.

Laura Mitchell

CTO

RetailCloud Inc.

“Passed the audit first try.”
The outstaffed JavaScript lead hardened our fraud detection APIs and documented every control. Auditors praised the code quality, and we certified six weeks earlier than planned, freeing budget for new features.

Marcus Lee

Security Director

TransitPay Network

“Legacy Java tossed—Node humming.”
Smartbrain provided two Node.js experts who containerised our settlement engine and reduced batch cycles from 4 h to 25 m. Productivity surged and our backlog finally shrank.

Olivia Sanders

Dev Team Lead

Midwest Finance Corp.

“Launched new markets without redeploys.”
The augmented team implemented dynamic currency routing and Stripe Connect integration. Revenue from LATAM surged 18 % within a quarter, while internal developers stayed on roadmap features.

Anthony Ramirez

Product Owner

EventTix USA

“Chargebacks down by half.”
Smartbrain’s senior JS engineer embedded advanced risk-scoring logic and real-time webhook monitoring. The change lowered fraud losses by 52 % and freed analysts for proactive work.

Sophie Clark

Head of Payments

HealthPay Partners

Industries Powered by Our JavaScript Payment Specialists

FinTech & Banking

Challenge: ultra-low-latency transfers, PCI DSS, multi-currency.
JS Augmentation: Engineers craft Node.js micro-services for payment orchestration, tokenization, and fraud detection, integrating gateways like Stripe, Adyen, and Plaid.
Impact: Faster rollouts, compliant code, elastic capacity—exactly what modern banking APIs demand.

eCommerce Platforms

Challenge: cart abandonment due to slow payment flows.
JS Augmentation: React / Node teams optimise integration platform payment engine layers, implement one-click checkout, and A/B routing logic.
Impact: Higher conversion, resilient peak-season performance.

SaaS Subscription

Challenge: recurring billing errors and dunning complexity.
JS Augmentation: Developers extend billing workflows, webhook handlers, and proration logic in JavaScript.
Impact: Stable MRR, reduced churn.

Logistics Tech

Challenge: multi-tenant wallets for shippers & carriers.
JS Augmentation: Node.js talent establishes secure split-payment engines and real-time settlement APIs.
Impact: Faster payouts, happier partners.

Healthcare Payments

Challenge: HIPAA-compatible patient billing.
JS Augmentation: Engineers build tokenized payment gateways, ensuring PHI safety.
Impact: Compliance and smoother reimbursements.

Travel & Ticketing

Challenge: high chargeback rates across borders.
JS Augmentation: JavaScript teams integrate risk rules and locale-aware routing.
Impact: Chargebacks drop, CX improves.

Gaming & iGaming

Challenge: real-time payouts at scale.
JS Augmentation: Developers create event-driven wallets with WebSocket notifications.
Impact: Instant cash-outs, loyal players.

Marketplaces

Challenge: split payments among vendors.
JS Augmentation: Engineers use Node.js and AWS Step Functions for orchestrated disbursement.
Impact: Accurate, automated settlements.

EdTech

Challenge: global course fee collection.
JS Augmentation: JavaScript experts integrate multi-currency gateways and subscription tiers.
Impact: Wider reach, seamless billing.

Integration Platform Payment Engine Case Studies

Client: VC-backed digital wallet targeting Gen-Z shoppers.

Challenge: Their integration platform payment engine failed under flash-sale spikes, causing 4 % decline conversions.

Solution: A squad of three Smartbrain-augmented JavaScript engineers decomposed the monolith into serverless payment micro-services, introduced adaptive transaction routing, and automated rollbacks. Work began 48 hours after contract signature.

Result: Checkout latency fell by 37 %, error rate by 89 %, and revenue per session grew 12 % within six weeks.

Client: B2B SaaS with 70 k users across 43 countries.

Challenge: Legacy billing module inside their integration platform payment engine could not handle local taxes and currencies.

Solution: Two senior Node.js developers embedded remotely, implemented micro-tax services, multi-currency conversion, and Stripe Tax integration—all while pairing with in-house QA.

Result: Deployment completed in 9 sprints; failed charge attempts dropped by 61 % and monthly churn improved 5.4 pp.

Client: US peer-to-peer rental marketplace.

Challenge: Frequent fraud patterns overwhelmed the integration platform payment engine, causing reputational risk.

Solution: Smartbrain supplied a seasoned JavaScript architect plus one mid-level dev who integrated machine-learning risk scoring, tokenization, and real-time webhooks, all in TypeScript.

Result: Fraud losses fell by 52 %, manual reviews by 68 %, and Net Promoter Score rose 7 pts within a quarter.

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Specialised JavaScript Services for Payment Engines

Gateway API Integration

What we do: Connect Stripe, Braintree, Adyen, or bespoke acquirers via optimised JavaScript SDKs and micro-services.
Benefit: Faster market expansion, reduced maintenance, and a unified codebase that scales with every new provider.

Payment Orchestration Refactor

What we do: Replace brittle batch scripts with event-driven Node.js routing, ensuring every transaction follows the cheapest, fastest path.
Benefit: Lower fees and higher success rates without rewriting your front-end.

Subscription Billing Automation

What we do: Build robust billing engines, dunning workflows, and proration logic in TypeScript.
Benefit: Stable recurring revenue and happier finance teams.

Fraud Detection Modules

What we do: Embed rule-based and ML-driven risk scoring into your integration platform payment engine.
Benefit: Chargebacks down, brand trust up.

PCI DSS Hardening

What we do: Implement tokenization, encryption, and audit logging standards through vetted JS engineers.
Benefit: Pass audits quickly and avoid fines.

Real-Time Settlement Dashboards

What we do: Craft React dashboards that visualise transaction flows, fees, and anomalies.
Benefit: Instant insights for data-driven decisions.

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FAQ: Augmented JavaScript Teams for Payment Engines

How fast can I onboard a JavaScript developer?

On average, Smartbrain presents vetted integration platform payment engine candidates within 24 hours and you can have a developer coding in 48 hours.

What vetting process do your payment engineers pass?

Each candidate completes code challenges on Node.js, gateway APIs, PCI compliance scenarios, and a live interview with our senior architects.

Can I scale the outstaffed team up or down quickly?

Yes. Contracts are month-to-month, so you can add or release developers with 14-day notice—ideal for fluctuating payment volumes.

Do the developers work in my timezone?

We prioritise 4-hour overlap with your core hours, covering US, EU, and APAC time zones.

Is my intellectual property protected?

All engagements include NDAs, IP assignment clauses, and secure code repository access following OWASP & PCI best practices.

What if a developer is not a good fit?

Notify us within the first week and we replace the developer at no cost or issue a refund for unused hours.

Do you handle payroll and taxes?

Absolutely. Smartbrain is the legal employer of record, managing payroll, taxes, and benefits so you focus solely on deliverables.

Can outstaffed engineers help with PCI audits?

Yes. Many of our JavaScript specialists have guided clients through Level-1 PCI DSS and can prepare documentation and code artefacts.

Which tech stack do your payment engineers use?

Primarily Node.js, TypeScript, React, AWS, and serverless—optimised for high-throughput payment orchestration.

Is there a minimum engagement length?

We start at one-month commitments, but most CTOs keep teams for 6-12 months due to sustained ROI.