Custom software development portfolio

Custom software built to scale.

From MVP development to enterprise platform migrations, our custom software development company builds production-grade apps, web applications, websites, Webflow apps, Shopify apps, APIs, and cloud infrastructure that scale with your business.

Delivery recordDude Lemon
Projects shippedWeb apps, mobile apps and cloud systems
1000+
Average uptime SLAAcross production platforms
99.9%
Client platform revenue processedPayments through platforms we built
$14M+
Production API calls handled dailyAcross live APIs
100K+

02Products we build and run

Every platform in production, designed, built and operated by us.

AI, compliance, commerce, fundraising, recall management and robotics software, each one live and engineered to the same standard as our client work.

convertpilotai.com

AI sales and support inbox

ConvertPilot AI

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.

6
channels in one inbox
Shopify
native app
iOS + Android
team app
trysearchlift.com

SEO and AI visibility

SearchLift AI

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.

5
AI answer engines monitored
1-click
reversible on-page fixes
Weekly
AI visibility reports
app.reviewmankey.com

AI review management

ReviewMankey AI

Aggregates 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.

3
review platforms, one inbox
AI
drafted reply for every review
Daily
digest to your team
foxborne.com

Incident reconstruction for robotics

Foxborne

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.

5
log formats, PX4 ULog to IRIG 106
SHA-256
on every original file
Self-hosted
GovCloud or air-gapped
console.evidr.com
05 / 09evidr.com

Compliance automation

Evidr

Automates audit readiness across SOC 2, ISO 27001, HIPAA, GDPR, and 12+ regulatory frameworks. AI-driven evidence collection, policy generation, and continuous vendor monitoring with a documented audit trail.

12+
frameworks
24/7
vendor monitoring
Weeks
to audit-ready
06 / 09

Product recall software

RecallPilot

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.

24 hrs
to live on your domain
8+
identifier types, VIN to lot
7
remedy workflows
Aletro dashboard

Signal-based prospecting

Aletro

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.

50+
buying signals
Sourced
every claim
1
pipeline to close
givepilot.dudelemon.cloud

Donations and fundraising

GivePilot

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.

130+
currencies
Stripe
and PayPal built in
Recurring
and one-time gifts
lakazfresh.mu

Multi-vendor marketplace

Lakaz Fresh

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.

1
shared catalogue
Scheduled
delivery slots
3
role-specific apps

03Full-stack custom software development services

End-to-end custom software development services.

Custom apps, web applications, websites, Webflow apps, Shopify apps, RESTful APIs, React Native mobile apps, admin dashboards, AWS cloud infrastructure, AI integrations, and ongoing maintenance from one enterprise software development company.

  1. 01

    Plan & design

    Product strategy, UX, and system architecture before a line of code is written.

  2. 02

    Build

    Full-stack engineering across web, mobile, and cloud, delivered by one senior team.

  3. 03

    Ship

    CI/CD and containerized AWS deployments, monitored and hardened for production.

  4. 04

    Scale

    Security-first operations, performance tuning, and ongoing engineering as you grow.

04Custom software development solutions

Enterprise software development, well-architected.

  1. 01

    App Building & MVP Development

    Product planning, UX, full-stack engineering, analytics, and launch support for new apps, SaaS products, portals, and internal tools.

  2. 02

    Web App & SaaS Platforms

    Custom admin dashboards, operator portals, and customer-facing web applications unified under one scalable architecture with shared authentication.

  3. 03

    Website Development & SEO Foundations

    Fast service websites, marketing pages, landing pages, and content systems built with clean metadata, schema, canonical URLs, and conversion paths.

  4. 04

    Webflow & Shopify Apps

    Webflow apps, Shopify apps, storefront extensions, marketplace apps, ecommerce automation, and platform API integrations.

  5. 05

    REST API & GraphQL Development

    Production RESTful and GraphQL APIs with OpenAPI documentation, rate limiting, webhook integrations, and automated test suites.

  6. 06

    AWS Cloud Infrastructure

    Cloud-native deployments on AWS, GCP, or Azure - containerized with Docker, orchestrated with PM2, and monitored with CloudWatch.

  7. 07

    AI & LLM Integration Services

    Custom LLM pipelines, retrieval-augmented generation (RAG), AI chatbots, and intelligent workflow automation integrated into enterprise software applications.

05Scalable software architecture

Production-ready software built for enterprise scale.

$14M

In client platform revenue processed

100K+

Production API calls handled daily

06Custom API development & documentation

RESTful APIs built for production.

Fully documented REST APIs with OpenAPI specs, JWT authentication, rate limiting, webhook integrations, and WebSocket real-time events - built for seamless third-party developer integration.

API Documentation Portal
10,000+

Endpoints

1000+

Projects

99.98%

Uptime

<50ms

Response time

07Managed software development operations & support

Managed software maintenance.

Ongoing custom software maintenance, cloud operations, and technical support - so your team can focus on product development, not infrastructure management.

Startup

Early-stage products that need reliable infrastructure without a full-time ops team.

  • 48h response SLA
  • Security patches & dep updates
  • Uptime monitoring & alerting
  • Monthly performance reports

Scale-up

Growing platforms that need active development, CI/CD management, and database tuning.

  • 24h response SLA
  • CI/CD pipeline maintenance
  • Database optimization & backups
  • Feature iterations & deploys

Enterprise

Mission-critical systems requiring dedicated engineering, DR planning, and architecture reviews.

  • On-call response SLA
  • Dedicated engineer assignment
  • Architecture reviews & audits
  • Disaster recovery planning

Custom software development FAQ

Frequently asked questions.

Anything we have not answered here, ask us directly. A senior engineer replies.

How does a custom software development project start?

Every custom software development 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.

Who are Dude Lemon's clients?

We have delivered software projects for Fortune 500 companies including Google, Amazon, BMW, 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 - the applications we shipped, project correspondence, and delivery metrics - within the confidentiality limits of each engagement.

What makes Dude Lemon a pioneer in AI-driven app development?

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.

Do you take over and modernize existing codebases?

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.

What does ongoing software maintenance and support include?

Our managed operations range from 24/7 on-call support with dedicated engineers to periodic security patches, performance monitoring, and cloud infrastructure tuning. Every maintenance contract is scoped to your actual traffic patterns and risk profile.

How do you handle project communication and collaboration?

We integrate into your existing workflow - Slack, Microsoft Teams, email, Linear, Jira, or Notion. We adapt to your project management tools rather than forcing a new process, ensuring transparent collaboration from day one.

What technologies and programming languages do you specialize in?

Full-stack custom 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.

Do you build Webflow and Shopify apps?

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.

NIST 800-53

Federal-grade security controls for access management, audit logging, and incident response.

SOC 2

Audited controls for data security, availability, processing integrity, and confidentiality.

Start a project

Start your custom software project.

From concept to production-ready custom software. Book a free discovery call with our engineering team and receive a detailed technical blueprint and project proposal within 48 hours.