Enterprise software engineering
Dude Lemon is an enterprise custom software development company and a pioneer in AI-driven applications built for scalability and security. We design, build, and deploy apps, web apps, websites, AI software, and cloud infrastructure for Fortune 500 clients and growing businesses worldwide, from fully custom systems to apps for platforms like Shopify and Webflow.
Trusted by Fortune 500 industry leaders
Years building custom software solutions
Web apps, mobile apps & cloud systems deployed
Enterprise clients served worldwide
Lines of production code shipped
01Case studies
Engagements delivered for enterprises, from private AI infrastructure to nationwide healthcare and automotive recall portals.
Featured · Private AI Infrastructure
We designed, built, and commissioned a complete on-premise AI datacenter for an enterprise client, then built and deployed a custom AI model to run on it: a dense multi-GPU cluster on a high-speed fabric, redundant power and precision cooling, enterprise security, and a live private model API we develop and maintain, all inside their own walls.
Enterprise Healthcare
A three-year engagement building the US patient portal for a major medical technology brand: identity-matching registration, medical-grade data security, and encrypted audit logs delivered on demand.
Automotive
A secure portal built for a global automotive manufacturer headquartered in Germany during a worldwide steering recall: owners check eligibility by VIN, verify their identity, and complete an encrypted multi-stage registration, hardened against VIN enumeration.
02Enterprise SaaS platforms
Enterprise-grade architecture, zero-downtime deployments, and infrastructure built to handle millions of transactions. Every platform ships with SOC 2 compliance, automated CI/CD, and 99.9% uptime SLAs.
AI sales agent that learns your catalog, answers product questions, captures leads, and hands off to your team. One unified inbox across every channel, plus a mobile app so your team can reply from anywhere.
Node.js
MySQL
OpenAI
An SEO and Generative Engine Optimization platform. SearchLift audits and scores every page, applies reversible AI fixes, drafts answer-first articles, and monitors what ChatGPT, Claude, Gemini, Perplexity, and Grok say about your business, so you win the click and the citation.
Node.js
PostgreSQLOpenAIAggregates customer reviews from Google, Play Store, and App Store into one inbox. AI-generated responses, real-time sentiment analysis, automated review requests, and competitor benchmarking. Helps brands turn reviews into revenue.
ReactPostgreSQL
RedisOpenAI
StripeEach one in production, each one engineered to the same standard.
Automates audit readiness across SOC 2, ISO 27001, HIPAA, GDPR, and 12+ regulatory frameworks. AI-driven evidence collection, policy generation, and continuous monitoring.
ReactPostgreSQLNode.jsStripeOpenAI
Finds the companies about to buy and turns them into sales-ready opportunities: who to contact, why now, what to say, and the proof behind every claim.
ReactNode.jsPostgreSQLOpenAIStripe
Full-stack crowdfunding and donation infrastructure. One-time and recurring payments via Stripe and PayPal in 130+ currencies, with campaign tracking, donor portals, and a live revenue dashboard.
ReactNode.jsPostgreSQLStripe
A production multi-vendor marketplace. Independent sellers list against one canonical catalogue, inventory and delivery capacity are committed in a single transaction, and orders fan out into per-seller fulfilments.
Node.jsPostgreSQLOpenAI
AWS03Regulated industry software
RecallPilot runs product recalls for manufacturers. Evidr keeps compliance evidence current. Foxborne reconstructs incidents for field robotics teams. We designed and built all three.
Product recall software
When a recall is announced, every affected customer arrives at once. RecallPilot is the recall website they land on and the recall management software behind it: eligibility lookup, registration and claims, notification, batch and lot traceability, and CAPA, connected to your ERP, QMS and MES.
Compliance automation software
Evidr watches every vendor in your stack and raises an alert the moment a breach, vulnerability or incident emerges, scored by severity, mapped to the frameworks it impacts and linked to the source disclosure. Resolve or dismiss each alert with a documented reason, and the audit trail writes itself.
Incident reconstruction software
Foxborne lines up flight logs, companion computer journals and ground receive records from PX4 drones, ground robots and jet-powered UAS on UTC, states the clock error of every source, and hands engineers a report where each line traces back to the original file.
04Custom software development services
End-to-end custom software development services - apps, web applications, websites, backend systems, cloud infrastructure, AI integration, and cybersecurity, plus platform apps for Shopify and Webflow. One team, one codebase standard, zero handoff friction.
Product strategy, UX, frontend, backend, analytics, and launch support for new apps, SaaS products, portals, and internal tools.
Full-stack web apps built with React 19, Node.js, and TypeScript. Enterprise-grade architecture with cloud-native design from day one.
High-performance marketing sites, service websites, landing pages, and content systems with SEO foundations, fast load times, and clean conversion paths.
Webflow apps, custom integrations, CMS workflows, automations, API connectors, and production extensions for teams building on Webflow.
Public and private Shopify apps, custom storefronts, checkout extensions, subscription flows, ecommerce automations, and operational dashboards.
Cross-platform mobile applications using React Native with native performance, offline-first architecture, and seamless API integration.
Production AWS infrastructure - EC2, S3, CloudFront, RDS, SES - engineered for 99.9% uptime and zero-downtime deployments.
GPT-4, Claude, and custom ML pipelines embedded into your product architecture. Production-ready AI, not prototypes.
WebAuthn passwordless auth, PGP encryption, WAF rules, and audit logging. NIST 800-53 and SOC 2 compliance.
Scalable microservice architectures with RESTful APIs, PM2 clusters, real-time data pipelines, and developer-first documentation.
GitHub Actions, Nginx, Docker, PM2. Automated testing, continuous deployment pipelines, and 24/7 production monitoring.
Architecture reviews, technical due diligence, build-vs-buy decisions, and roadmap planning with senior engineers. Honest scope, timeline, and budget guidance before you commit to a build.
05Enterprise software engineering standards
Every custom software development project ships with automated CI/CD pipelines, enterprise security architecture, and performance-optimized cloud infrastructure from day one.
Continuous integration and deployment pipelines built with GitHub Actions and Docker. Push code, tests run, staging deploys, production swaps - all in under 60 seconds with zero manual steps.
SOC 2 audited infrastructure, regular penetration testing, and enterprise-grade compliance baked into every build. WebAuthn passwordless auth, encrypted secrets management, WAF rules, and comprehensive audit logging from day one.
CloudFront CDN delivery, lazy loading, edge caching, and optimized bundles. Every web application targets sub-second load times and 95+ Lighthouse performance scores.
06Software development technology stack
9+ years building production software with React, Node.js, AWS, PostgreSQL, Docker, Webflow, Shopify, and more. Battle-tested tools powering scalable enterprise apps, websites, web applications, and mobile apps.
Frontend
React 19
Vite
TypeScriptReact Native
Tailwind CSSBackend
Node.js
ExpressREST APIs
GraphQL
PM2 ClustersPlatforms
Webflow Apps
Shopify AppsCheckout ExtensionsDatabases
PostgreSQLMySQL
RedisAWS RDSS3 StorageCloud / AWS
EC2CloudFront CDNSESIAMSecrets ManagerDevOps
GitHub Actions
Nginx
Docker
Certbot / SSLCloudWatchSecurity
WebAuthn / FIDO2
OpenPGP
WAF RulesAudit LoggingHTTPS/TLSAI / ML
OpenAI GPT-4
Claude APISentiment AnalysisVector SearchEmbeddingsCommerce / SaaS
Stripe BillingShopify Admin APISubscriptionsWebhooksOAuth 2.007Custom software development FAQ
Anything we have not answered here, ask us directly. A senior engineer replies.
Every software project begins with a free technical discovery call. We analyze your architecture, constraints, and business goals, then deliver a detailed project roadmap and technical blueprint within 48 hours, tailored to your system, not a cookie-cutter process.
We have delivered software projects for Fortune 500 companies including Google, Amazon, Philips, Starbucks, and Best Buy, alongside high-growth startups and SaaS companies. Many enterprise engagements run under strict NDAs, so the public site shows only a portion of the work. In a qualified sales conversation we can privately walk through proof of delivery, including shipped applications, project correspondence, and delivery metrics, within the confidentiality limits of each engagement.
AI is a core engineering discipline at Dude Lemon, not an add-on. We ship production LLM integrations, RAG knowledge bases, AI agents, and conversational commerce systems, each engineered for scale and security with load-tested architecture, strict data boundaries, SOC 2 audited operations, and 99.9% uptime SLAs.
Yes. We routinely inherit legacy software systems, conduct thorough code audits, and incrementally improve architecture, test coverage, security, and deployment pipelines. We only recommend a full rebuild when the existing codebase genuinely cannot support your requirements.
Full-stack software development with React, Node.js, TypeScript, Python, PostgreSQL, AWS, Docker, Webflow, Shopify app integrations, and AI/ML integrations. Our core strength is building scalable backend architecture, cloud infrastructure, and production APIs that enterprise applications depend on.
Yes. We build Webflow apps and integrations, Shopify apps, storefront customizations, ecommerce automations, subscription flows, checkout extensions, and private operational tools connected to commerce platforms.
Start a project
We take on a limited number of app, website, web app, and custom software development engagements each quarter, including platform work on Shopify and Webflow. Get a free consultation and project proposal within 2-3 business days.
