Payment Software Development Services: Custom Solutions for Businesses

#image_title

Can a single platform truly scale your business, cut risk, and speed time to market without overwhelming your team?

We build tailored payment platforms and high‑load systems that help U.S. companies compete confidently in a crowded market. Drawing on experience with SPD Technology and partners like Softjourn, Poynt, and PitchBook, we design secure, compliant solutions that handle large transaction volumes and complex integrations.

Our approach aligns strategy and execution from day one, translating goals into a clear product roadmap that lowers risk and accelerates delivery.

We combine domain expertise in payments with robust engineering to deliver low‑latency, omnichannel acceptance, multi‑currency support, and advanced risk controls.

Result: a maintainable, auditable platform that balances build‑vs‑buy choices, reduces total cost of ownership, and frees your team to focus on growth.

Key Takeaways

Secure, Scalable Payment Solutions Built for Today’s Market

Built for uptime and auditability, our architectures combine layered security with high‑throughput processing.

We design resilient systems that meet strict security and compliance requirements while keeping transactional latency low. Our teams embed PCI DSS controls, EMV and 3‑D Secure flows, end‑to‑end encryption and HSM integration to protect cardholder data at rest and in transit.

To ensure continuity, we engineer for 99.9% availability with redundancy, failover, and fault tolerance, mirroring SPD Technology’s best practices for third‑party processor integrations. We validate data integrity using checksums, hashing, and transaction logging so audits are straightforward and incidents are traceable.

We also tune throughput and efficiency, optimizing queues and load balancing and applying AI‑assisted routing where it improves authorization rates without compromising risk posture.

Quick comparison

Capability Primary Benefit Example
Layered security Reduced breach surface PCI controls, encryption, HSM
High availability Continuous transactions 99.9% uptime, failover
Data integrity Audit readiness Checksums, hashing, logs
Throughput tuning Lower latency Queue tuning, AI routing

payment software development services

We align technical choices with commercial objectives, producing a custom platform that reduces risk and speeds market entry.

First, we translate your business needs into a clear blueprint that prioritizes revenue, risk controls, and operational efficiency.

Next, a dedicated team of experts owns delivery from discovery through launch, combining architecture, back end, front end, mobile, DevOps, and QA to keep timelines tight.

Custom payment platforms tailored to specific needs

Dedicated team of experts for end‑to‑end delivery

Core Services: From Gateway Development to End‑to‑End Processing

Our core offerings span gateway engineering to end‑to‑end transaction orchestration, each tuned for scale and auditability.

We build custom gateways and integrate with leading processors via SDKs and APIs to reduce processing costs and preserve checkout flexibility, drawing on best practices from Softjourn and partner integrations.

Our processing stacks handle authorizations, captures, settlements, refunds, and chargebacks with audit‑ready logs. SPD Technology‑style billing engines support high load—thousands of requests per second—while maintaining reconciliation and observability.

We deliver POS and SoftPOS solutions with certified Android terminal integrations for secure card‑present acceptance across retail and field scenarios.

Each product area is instrumented for observability, with dashboards and alerts aligned to operational KPIs so teams can act quickly and keep uptime high.

Payment Gateway Expertise and Integration Methods

Choosing the right gateway method shapes your risk profile, UX, and go‑to‑market speed.

We assess PCI scope, user experience goals, and risk posture to recommend Direct Post, Hosted, or Integrated flows, balancing control and compliance.

SPD Technology has implemented all three approaches at scale, and one project integrated 22 systems to give clients broad geographic reach.

Direct Post, Hosted, and Integrated methods

Direct Post keeps card data out of your systems, lowering scope but constraining UX. Hosted pages speed approvals, while Integrated approaches give full control for bespoke flows and lower long‑term cost.

Third‑party provider integrations and SDKs/APIs

Result: a portable, auditable integration strategy that reduces go‑live risk and preserves flexibility as your project scales.

Advanced Payment App Development for Web and Mobile

We build mobile and web apps that simplify merchant workflows, improve conversion, and keep transactions auditable.

Our team crafts native iOS and Android experiences with clear purchase flows to reduce friction for consumers and merchants.

We implement a secure virtual terminal for keyed transactions, support tap‑to‑pay and wallets like Apple Pay and Google Pay, and enable merchant cash advances with flexible settlement options.

iOS and Android apps with modern UI/UX

Design systems ensure consistency across fingers, screens, and contexts, improving task completion and accessibility for all users.

Features that matter

We combine SPD Technology’s mobile expertise and partnerships like Chetu to deliver a product that scales, captures analytics, and lets teams iterate fast on UX and features.

Point‑of‑Sale and SoftPOS Solutions for Omnichannel Commerce

Our POS and SoftPOS offerings bring secure, contactless checkout to every touchpoint, from flagship stores to roaming sales teams.

We develop POS and SoftPOS solutions that enable contactless acceptance with minimal hardware overhead, using Android terminals and certified device integrations from partners like SPD Technology and Chetu.

Operational continuity matters, so we support offline queues with configurable risk thresholds to keep stores processing when networks are unstable.

We certify peripherals—readers, printers, scanners—and manage remote updates and configurations at scale to reduce maintenance and speed merchant onboarding.

pos

Billing and Recurring Payments Platforms at Scale

Our billing platforms turn complex subscription rules into reliable, automated cash flow that scales with demand.

We build subscription and usage-based engines with proration, metering, taxation, and dunning to stabilize cash flow and reduce involuntary churn.

Ledgers and reconciliation processes are designed to be auditable, ensuring transaction accuracy across gateways, banks, and your general ledger.

High-throughput architecture matters: our systems process thousands of requests per second, protecting performance during billing cycles and peak promotions. SPD Technology implementations handled 5,000+ rps and supported databases over 1M users, while optimization work yielded monthly operational savings of $200K for an eCommerce client.

We integrate cards, ACH, and wallets for recurring plans, add smart retries and account updater support, and provide self-service portals so merchants and customers can manage plans, invoices, and methods with minimal support overhead.

Finance-ready features include revenue recognition reporting, automated notifications for renewals and failed charges, and KPI monitoring to boost recovery rates and operational efficiency.

We apply cost-reduction techniques—provider optimization, routing, and storage tiering—and secure PII and payment data throughout billing flows to support compliance and trust.

Capability Business Benefit Scale Example Key Metric
Subscription & Metering Predictable revenue, less churn Proration, usage tiers ARPU, churn rate
Ledger & Reconciliation Audit-ready accuracy Cross-gateway matching Reconciliation time
High-Throughput Billing Performance during peaks 5,000+ rps proven Requests/sec, latency
Recovery & Cost Optimization Improved margins and recovery Routing, retries, provider mix Recovery rate, ops cost

Security and Compliance: PCI DSS, EMV 3‑D Secure, PA‑DSS, P2PE

We apply rigorous controls and modern cryptography to keep sensitive data out of reach and operations auditable.

Layered protection is central to our approach. We implement PCI DSS controls tailored to your environment to reduce scope while protecting card data across its lifecycle.

We use EMV 3‑D Secure and risk‑based step‑up authentication to lower CNP fraud while keeping checkout conversion high. Point‑to‑point encryption and HSM‑backed key management secure card‑present flows.

Tokenization limits sensitive data exposure, enabling safe card‑on‑file and recurring use. KYC/AML checks and underwriting controls help curb fraud and meet regulatory expectations.

Control Primary Benefit Example
PCI DSS Reduced scope, audit readiness Network segmentation, config baselines
EMV 3‑D Secure Lower CNP fraud, better auth rates Risk scoring, step‑up auth
P2PE & HSM Key protection, tamper resistance HSM key storage, P2PE terminals
Tokenization & KYC Data minimization, fraud reduction Card tokens, identity verification

AI/ML‑Powered Fraud Detection and Risk Management

Our ML models spot hidden fraud patterns across streams of transactions, turning noisy logs into actionable signals. We pair neural networks with graph analytics and rules so risk teams can act fast while keeping good customers moving.

Anomaly detection, predictive analytics, and neural networks

Anomaly detection and predictive analytics

We design ML pipelines for anomaly detection, supervised classification, and graph‑based insight to expose coordinated fraud rings. SPD Technology’s work led to an 8x fraud reduction in one year, showing how models translate to measurable outcomes.

Real‑time transaction scoring and risk assessment

Real‑time scoring and adaptive routing

We score transactions in real time using engineered features, device intelligence, and behavioral signals to stop fraud before authorization. Chetu’s ML improves routing and processing, favoring acquirers and 3‑D Secure flows that boost approvals without raising risk.

Result: an enterprise‑grade solution that combines technology, security, and data expertise so your team can reduce losses and improve approval rates.

Integration Across Ecosystems: POS, Cloud, and Third‑Party Systems

We unify device connectivity, gateways, and portals so merchants and ops teams work from one consistent view. Our approach reduces handoffs, speeds activations, and keeps records auditable across cloud and on‑premise systems.

SPD Technology’s integrations supported 200,000+ merchants and 26M buyers, and cut merchant onboarding time by 7x through streamlined flows and standardized APIs.

Payment gateways, processors, and device connectivity

We connect your stack to gateways, processors, and terminals with versioned APIs that preserve backward compatibility and simplify SDK upgrades.

Onboarding, underwriting, and merchant portals

We build onboarding and underwriting workflows with KYB/KYC checks, doc verification, and risk rules to accelerate activations.

Result: a resilient platform that helps developers and operations teams deploy robust processing solutions while keeping admin overhead low.

Scalability, Reliability, and Data Integrity for High‑Load Systems

Our architectures scale horizontally to absorb traffic surges while keeping transactional integrity intact. We design systems that sustain growth and protect financial consistency, drawing on SPD Technology’s proven 99.9% availability for processor integrations and real‑world scale to $140M/month GPV with 30,000+ merchants.

99.9% availability, redundancy, and fault tolerance

We provision multi‑AZ and multi‑region deployments, with redundancy and graceful degradation when components fail.

Backpressure, idempotency, and exactly‑once semantics guard against duplicate effects and protect ledgers during retries and failovers.

Checksums, hashing, logging, and observability

We protect data integrity using validation checks, checksums, hashing, and rigorous reconciliation between internal ledgers and external providers.

Observability is builtin: metrics, traces, and structured logs let teams detect anomalies and resolve incidents fast.

Cross‑Border and Multi‑Currency Processing for Global Reach

We coordinate regional acquirers, local mandates, and currency conversion to keep transactions flowing and approvals high.

Our platform offers multi‑currency pricing, FX handling, and settlement in preferred currencies so businesses can present local totals and collect in the right account.
We route traffic to regional acquirers to boost authorization rates and reduce fees in key markets.
We also support local wallets and alternative methods to match buyer preferences and lift conversion.

Compliance is baked in: SCA/3DS alignment, geofencing, and data residency controls adapt to local rules while keeping audit trails intact.
We handle tax and invoice localization, reconcile multi‑entity payouts, and tune fraud models for regional behavior.

Feature Benefit Example
Multi‑currency pricing Local pricing, fewer declines Display EUR/GBP/JPY, settle to USD
Regional acquirer routing Higher auth rates, lower fees Route EU to EU acquirers, APAC to local partners
Local methods & wallets Better conversion Support Alipay, SEPA, Pix, and wallets
Data residency & compliance Regulatory adherence Geofencing, SCA alignment, audit logs

UX That Drives Higher Completion Rates

Clear, friction‑free checkout flows lift conversions and make every interaction easier for users.

We simplify forms with minimal fields, progressive disclosure, and clear error messages so customers finish faster and with less confusion.

On mobile, we use responsive layouts, wallet buttons, and biometrics to speed authentication and reduce abandonment. Real‑time validation and card scanning cut typing errors and speed entry.

Accessibility matters. We design interfaces to meet WCAG standards, opening access for more customers and improving overall usability.

We run iterative A/B tests and usability studies, tracking conversion, approval, and retry metrics by device and method, and use that data to prioritize features and future development.

Result: a user‑centered solution that raises completion and approval rates while keeping brand trust and compliance intact.

Proven Process: Discovery to Delivery

From intake to ongoing operations, we run a clear, repeatable path that de-risks launches and speeds value realization.

We begin with consulting and discovery to elicit requirements, align stakeholders, and set success metrics tied to business outcomes. This phase reduces ambiguity and shortens project time to market.

Definition and R&D

Engineering, QA, and maintenance

Post‑launch we transition into maintenance with SLAs, backlog grooming, and continuous improvements tied to KPIs. Documentation and knowledge transfer empower your internal team to co‑manage the product while we govern scope, schedule, risks, and budget with transparent reporting.

Flexible Engagement Models to Match Your Project

Pick a collaboration style that gives you the right mix of control, speed, and cost predictability. We offer three common paths so companies can choose how deeply we integrate with internal teams and who owns day‑to‑day delivery.

Team extension

Team extension

We embed specialists into your team to fill skills gaps quickly, cut hiring time, and accelerate milestones. Our approach preserves your roadmap while adding vetted developers who align with your stack and processes.

Self‑managed dedicated team

We assemble a dedicated team to own delivery end‑to‑end under an experienced project manager. This model gives you predictable outcomes, clear IP terms, and long‑term continuity with average partnerships over five years.

Project‑based outsourcing

When you need a turnkey option, we take full responsibility for a scoped project — from discovery through QA and support. Scope and pricing are transparent so budgets stay predictable and risks are contained.

Model Who owns outcomes Best when
Team extension Client Fill skills fast, keep product control
Self‑managed dedicated team Shared, led by our PM Long‑term product ownership, steady velocity
Project‑based outsourcing Provider Fixed scope, turnkey delivery

Results and Social Proof: Case Studies and Testimonials

Client outcomes speak for our approach: quicker launches, proven cost savings, and durable reliability at scale. We pair engineering rigor with product focus so teams see measurable business impact fast.

High‑load platforms and onboarding acceleration

Experience with SPD Technology reduced merchant onboarding times by 7x, speeding revenue realization for partners. Our platform work supported 200,000+ merchants and 26M buyers, and enabled less‑than‑1‑day release cycles through serverless CI/CD patterns.

Operational savings and fraud reduction outcomes

We delivered $200K/month in operational savings by optimizing processing flows and platform efficiency, and achieved 8x fraud reduction using ML risk scoring and KYC/AML controls.

Outcome Metric Business impact
Onboarding 7x faster Faster time to revenue
Ops savings $200K/month Lower run costs
Fraud 8x reduction Lower losses, better approvals

We measure success by approvals, conversion, loss reduction, and operational efficiency, translating complex roadmaps into shippable product increments while our team sustains compliance and performance goals.

Industries and Use Cases We Serve

Across sectors, we tailor architectures so business models and compliance rules work together smoothly.

We support a wide range of verticals, adapting systems and workflows to real operational needs so teams can scale with confidence.

Real results: SPD Technology integrations supported 200,000+ merchants and rolled out analytics that cut B2B data costs 5x, showing how focused technology choices deliver measurable gains.

Industry Primary use case Key features Scale example
FinTech Regulated onboarding & routing Processor connectors, risk rules, compliance logs Integrated in 11 countries
eCommerce Marketplace settlements Escrow, split payouts, dispute automation 200,000+ merchants supported
SaaS / B2B Recurring billing & invoicing Metered billing, self‑service portals, ledger reconciliation Automated payouts, consolidated reporting
Retail & Telecom POS and recurring collections Loyalty, SoftPOS, tax and collections integration Omnichannel reconciliation at scale

We tailor solutions to each client’s needs, aligning technology and product choices with growth plans so businesses can expand without adding operational burden.

Why Choose Our Payment Software Company

Choose a partner with proven results across enterprise brands, engineering rigor, and a clear focus on business outcomes.

We bring deep expertise and 18+ years of experience delivering secure, compliant platforms for clients like PitchBook, Morningstar, Roche, and Poynt.

As a trusted provider, we offer transparent engagement, predictable delivery, and long‑term partnerships backed by an NPS of 9.8 and 460+ completed projects.

We tailor engagement with a dedicated team or hybrid model so your internal staff keeps control while we deliver measurable improvements in conversion, approvals, and time to market.

Conclusion

We focus on measurable outcomes—faster onboarding, fewer losses, and reliable operations—so teams see value fast.

Our approach delivers secure, scalable payment solutions tailored to your operational needs and growth plans, with results like 7x faster onboarding and 8x reduction in fraud.

We offer end‑to‑end development services from discovery through maintenance, aligning technology with your needs and balancing custom work with proven integrations.

What you get: a capable team that integrates with yours, clear governance and milestones, and predictable delivery that shortens time to market without sacrificing quality.

Start a conversation today to scope your project and accelerate outcomes with auditable controls and continuous monitoring.

FAQ

What industries do we specialize in for payment software development?

We design custom solutions for retail, hospitality, e‑commerce, fintech, healthcare, and marketplaces, aligning integrations with POS systems, merchant accounts, and gateway providers to meet industry workflows and compliance requirements.

How do we ensure secure handling of transactions and sensitive data?

We implement end‑to‑end encryption, tokenization, PCI DSS controls, HSM support, and robust KYC/AML processes, complemented by audit‑ready logging and fraud protection measures to protect card‑present and card‑not‑present flows.

Can we integrate with existing gateways, processors, and third‑party services?

Yes — we support Direct Post, Hosted, and integrated gateway methods and connect via SDKs and APIs to major processors, wallets, and third‑party providers, ensuring smooth data flow across cloud platforms and on‑premise systems.

What deployment and engagement models are available for a project?

We offer flexible options including team extension, self‑managed dedicated teams, and project‑based outsourcing, allowing you to scale engineering, QA, and application maintenance according to timelines and budget.

How do we handle mobile and web payment app development?

Our teams build native iOS and Android apps and responsive web platforms with modern UI/UX, features such as virtual terminals, loyalty modules, messaging, and cash advance workflows, and integrations for mobile wallets and BNPL.

What measures are taken to achieve high availability and scalability?

We design systems with redundancy, fault tolerance, 99.9% availability targets, horizontal scaling, caching, and observability, and we employ checksums, hashing, and structured logging to preserve data integrity under peak loads.

How do we approach fraud detection and risk management?

We apply AI/ML models for anomaly detection and predictive analytics, real‑time transaction scoring, adaptive rules engines, and neural network classifiers to reduce false positives while catching sophisticated attack patterns.

Can you support cross‑border and multi‑currency processing?

Absolutely — we enable multi‑currency routing, settlement options, FX handling, and regulatory configurations to support global merchants and reduce friction for international transactions and reconciliation.

What is included in your onboarding and merchant portal capabilities?

We deliver onboarding, underwriting workflows, merchant dashboards, reporting, billing and invoicing modules, and role‑based access controls to streamline activation, monitoring, and account management.

How long does a typical project take from discovery to delivery?

Timelines vary by scope, but a focused MVP often takes 8–16 weeks, while full platform builds with integrations and compliance hardening typically span several months; we begin with consulting, definition/specs, and R&D to set realistic milestones.

What compliance and certification support do we provide?

We guide clients through PCI DSS readiness, EMV 3‑D Secure implementation, PA‑DSS considerations, and P2PE strategies, and we prepare documentation and remediation plans for audits and regulatory reviews.

How do we improve checkout completion and user experience?

We optimize UX by simplifying flows, reducing fields, supporting smart defaults and tokenized cards, adding localized payment methods and wallets, and A/B testing interfaces to raise conversion rates and lower abandonment.

Do you provide post‑launch support and monitoring?

Yes — we offer SLA‑backed maintenance, real‑time monitoring, incident response, regular security patching, and continuous enhancement cycles to keep systems reliable and up to date.

What outcomes have clients realized from your solutions?

Clients report faster onboarding, operational savings, increased authorization rates, reduced fraud losses, and improved processing efficiency through tailored integrations, automation, and optimized transaction routing.

How do we price projects and engagements?

Pricing depends on scope, integration complexity, regulatory needs, and team composition; we provide transparent proposals with options for fixed‑price milestones, time‑and‑materials, or dedicated team arrangements to match your budget and goals.

Exit mobile version