Sygnoos We Build the Software That Government Agencies and Growing Companies Rely On
Since 2013, our 50+ person engineering team has shipped citizen portals, workflow systems, SaaS platforms, and mobile apps -- with the security practices and documentation that public-sector clients expect.
Get a Free Project Estimate- Founded 2013 — Sylmar, CA
- OWASP-Aligned Security Practices
- SAM.gov Registered (NAICS 541511)
Our Services
Web Development
We've built everything from internal workflow tools for public agencies to SaaS platforms with 500+ active users. Our stack is React, Vue.js, Node.js, PHP, and Python -- and yes, we actually write the tests and documentation that government contracts require.
- Backend: PHP, Python (Django, FastAPI), Node.js
- Frontend: React 18, Vue 3, Next.js
Mobile Development
Our mobile team has shipped apps on the App Store and Google Play -- including products that hit 300,000+ installs. We build in Swift for iOS, Kotlin for Android, and Flutter when cross-platform makes sense for budget and timeline.
- iOS: Swift, SwiftUI
- Android: Kotlin, Jetpack Compose
- Cross-Platform: Flutter, React Native
AI Automation & Development
We're not interested in adding AI buzzwords to your product just to check a box. What we do build: domain-specific LLMs, RAG-powered search systems, and automation pipelines that actually save your team hours per week.
Real Example: We built a system that takes spoken input, runs it through OpenAI Whisper for transcription, then feeds the text into a Llama 2 model fine-tuned on a client's resource catalog via LangChain. The system recommends the right resource in under 3 seconds.
Explore AI & Automation Services
Our Offerings
Here's what we actually do day-to-day for our clients. Some of these overlap with the services above -- the difference is in the details.
Custom Software Development
You need software that does exactly what your business does -- not almost-what-it-does. We build it from scratch, test it thoroughly, document how it works, and hand you the keys. No lock-in. The code is yours.
Software Integration
Your CRM doesn't talk to your accounting software? Your website can't pull data from your ERP? We build the connectors -- WordPress, Shopify, WooCommerce, MailChimp, Drupal, Shopware, CloudFlare, and custom APIs for everything else.
Mobile App Development
Swift for iOS, Kotlin for Android, Flutter when cross-platform makes financial sense. We've shipped apps with offline sync, biometric auth, and push notifications -- and handled the App Store and Google Play submission process end to end.
Custom Domain-Specific LLM Development
Off-the-shelf ChatGPT is a starting point -- not a finished product. We fine-tune models on your data so they understand your industry's jargon, your compliance rules, and your edge cases. RAG pipelines, prompt engineering, and LangChain integrations included.
Software Testing
QA isn't a phase at the end -- it runs alongside development from sprint one. Functional testing, OWASP security scanning, WCAG accessibility checks, and load testing. We catch the bugs before your users do.
Project Management
A dedicated PM on every project. Bi-weekly sprint demos, written status reports, and transparent time tracking. We use Jira, Linear, Asana, or whatever your team prefers -- the point is you always know where the project stands.
Portfolio
Real projects we've shipped. Some started as MVPs and grew into full platforms. Others were complex builds from day one. What they all have in common: they're still running in production.
Product management software for data-driven teams
A SaaS platform we built from the ground up for product managers. Uses AI to categorize customer feedback, monitors competitors via Puppeteer, and gives teams a shared workspace to prioritize what to build next. 500+ users in its first quarter.
All in one cloud backup solution
Website backup and security tool with cloud storage integration and AES encryption. The backup engine -- written in C++ -- handles full-site snapshots in under 60 seconds. Supports WordPress, standalone PHP sites, and custom platforms.
Perfect marketing tool
A Shopify marketing app for e-commerce stores. Multiple popup types -- exit-intent, scroll-triggered, timed -- designed to convert visitors into buyers. We built the frontend in vanilla JS for minimal page speed impact.
Car wash management ERP system
A custom ERP system for car wash businesses. Point-of-sale, customer loyalty tracking, staff scheduling, and revenue reporting -- all in one platform. Built with PHP and MySQL, integrated with Shopware for e-commerce functionality.
Top-rated and most installed WordPress plugin
WordPress popup plugin with 300,000+ active installations and a 4.9-star rating. We built and maintain it -- subscription popups, contact forms, social sharing, image galleries, and video embeds. Lightweight enough to keep page speed scores high.
Let's Talk About Your Project
Tell us what you're trying to build. We'll get back to you within one business day with honest feedback on scope, timeline, and whether we're the right fit.