Custom Software &
AI Automation
From startup MVPs to enterprise platforms
What WeOffer
From custom platforms to AI-powered automation — we build the software your team needs to operate and scale.
Custom Software Development
We design and build tailored software solutions that solve real business problems.
- Architecture & API Design— Scalable systems built on proven patterns — microservices, event-driven, Domain-Driven Design.
- Full-Stack Web Applications— Modern React frontends paired with robust NestJS or .NET backends.
- Database & Infrastructure— PostgreSQL, Redis, Docker, AWS — production-ready from day one.
- CI/CD & DevOps— Automated pipelines, Docker, AWS infrastructure as code.
- Mobile Development— React Native cross-platform apps for iOS and Android.
Every project starts with a thorough discovery phase to ensure we build the right thing.
Custom Software Development
We design and build tailored software solutions that solve real business problems.
- Architecture & API Design— Scalable systems built on proven patterns — microservices, event-driven, Domain-Driven Design.
- Full-Stack Web Applications— Modern React frontends paired with robust NestJS or .NET backends.
- Database & Infrastructure— PostgreSQL, Redis, Docker, AWS — production-ready from day one.
Every project starts with a thorough discovery phase to ensure we build the right thing.
AI & Automation Solutions
We integrate AI and build automation systems that eliminate manual work.
- RAG Systems— Knowledge retrieval over your documents, databases, and APIs.
- Computer Vision— Image classification, object detection, and OCR for your workflows.
- AI Agents— Autonomous agents that handle multi-step tasks end-to-end.
- Automated Testing— AI-powered test generation and quality assurance.
- Workflow Automation— Connect tools, eliminate manual steps, end-to-end pipelines.
- Custom AI Integration— OpenAI, custom ML models integrated into your products.
Our AI solutions learn and improve over time, delivering increasing value.
AI & Automation Solutions
We integrate AI and build automation systems that eliminate manual work.
- RAG Systems— Knowledge retrieval over your documents, databases, and APIs.
- Computer Vision— Image classification, object detection, and OCR for your workflows.
- AI Agents— Autonomous agents that handle multi-step tasks end-to-end.
Our AI solutions learn and improve over time, delivering increasing value.
Engineers First,Agency Second
We're a team of engineers who build products — our own included. Technical depth at every step, from architecture to production.
Built by engineers, for engineers
We solve hard technical problems — architecture, performance, scalability. Not just code to spec.
We build our own products
3 production applications on the same standards we apply to client work. Battle-tested practices.
Full lifecycle ownership
Architecture, development, deployment, and maintenance — one team from start to finish.
No vendor lock-in
You own the code, the infrastructure, and the documentation. Walk away anytime.
Our Work
Projects we've built using cutting-edge technologies
Parseo
AI document processing system that extracts, validates, and routes invoice data directly into accounting platforms.
90%
reduction in manual processing time
95%
data extraction accuracy
75%
reduction in operational costs
3x
team productivity improvement
Flowline
No-code workflow platform that orchestrates AI decisions, email processing, and cloud integrations across enterprise operations.
50+
integrations available
75%
less manual work
25+
automation processors
Real-Time
real-time processing
FIBE Album Cover Maker
AI-powered design engine that generates editable album cover artwork using computer vision and on-device ML.
100K+
App Store downloads
5M+
album covers generated
800+
AI-powered templates
Real-time
on-device rendering
Thumbnail Maker
Design studio for YouTube creators — AI-powered templates, custom graphics, and professional typography for eye-catching thumbnails.
4.8
star rating
400+
App Store reviews
500+
design templates
Real-Time
AI-powered generation
Forest Blends
E-commerce platform for a premium wellness brand — custom storefront, payment integrations, email marketing, and review management.
3+
payment providers
100%
responsive design
5+
automated campaigns
Verified
review integrations
Parseo
AI document processing system that extracts, validates, and routes invoice data directly into accounting platforms.
90%
reduction in manual processing time
95%
data extraction accuracy
75%
reduction in operational costs
3x
team productivity improvement
Flowline
No-code workflow platform that orchestrates AI decisions, email processing, and cloud integrations across enterprise operations.
50+
integrations available
75%
less manual work
25+
automation processors
Real-Time
real-time processing
FIBE Album Cover Maker
AI-powered design engine that generates editable album cover artwork using computer vision and on-device ML.
100K+
App Store downloads
5M+
album covers generated
800+
AI-powered templates
Real-time
on-device rendering
Thumbnail Maker
Design studio for YouTube creators — AI-powered templates, custom graphics, and professional typography for eye-catching thumbnails.
4.8
star rating
400+
App Store reviews
500+
design templates
Real-Time
AI-powered generation
Forest Blends
E-commerce platform for a premium wellness brand — custom storefront, payment integrations, email marketing, and review management.
3+
payment providers
100%
responsive design
5+
automated campaigns
Verified
review integrations
Parseo
AI document processing system that extracts, validates, and routes invoice data directly into accounting platforms.
90%
reduction in manual processing time
95%
data extraction accuracy
75%
reduction in operational costs
3x
team productivity improvement
Flowline
No-code workflow platform that orchestrates AI decisions, email processing, and cloud integrations across enterprise operations.
50+
integrations available
75%
less manual work
25+
automation processors
Real-Time
real-time processing
FIBE Album Cover Maker
AI-powered design engine that generates editable album cover artwork using computer vision and on-device ML.
100K+
App Store downloads
5M+
album covers generated
800+
AI-powered templates
Real-time
on-device rendering
Thumbnail Maker
Design studio for YouTube creators — AI-powered templates, custom graphics, and professional typography for eye-catching thumbnails.
4.8
star rating
400+
App Store reviews
500+
design templates
Real-Time
AI-powered generation
Forest Blends
E-commerce platform for a premium wellness brand — custom storefront, payment integrations, email marketing, and review management.
3+
payment providers
100%
responsive design
5+
automated campaigns
Verified
review integrations
Built to Deliver
Not a freelancer marketplace. Not an outsourcing farm. A focused engineering team with real products in production.
Years in Business
Delivering production software since 2017
Projects Shipped
From MVPs to enterprise platforms across 6 industries
Technologies
Deep expertise across frontend, backend, mobile, and AI/ML
Products in Production
Our own apps live on the App Store and serving real users
Industries WeBuild For
Deep domain expertise across verticals. We bring industry knowledge to every project we build.
Accounting & Finance
- →Email invoice processing and data extraction
- →Automated expense categorization and approval
- →Financial report generation and distribution
E-commerce & Retail
- →Order processing and fulfillment automation
- →Inventory level monitoring and reordering
- →Customer service chatbots and ticket routing
Media & Creative Production
- →Automated social media content generation
- →Brand asset organization and distribution
- →Design template creation and customization
Operations Teams
- →Workflow automation and orchestration
- →Data processing and transformation pipelines
- →System integration and API management
Built With
TypeScriptReact
Next.jsNestJSNode.jsC#PythonSwift
GraphQLPostgreSQL
RedisDocker
AWS
Google CloudFirebase
NginxOpenAI
Hugging Face
Qdrant
Keycloak
Sentry
Grafana
Playwright
Socket.IO
Medusa
Twilio
NgrokAnalytics
AndroidTypeScriptReactNext.jsNestJSNode.jsC#PythonSwiftGraphQLPostgreSQLRedisDockerAWSGoogle CloudFirebaseNginxOpenAIHugging FaceQdrantKeycloakSentryGrafanaPlaywrightSocket.IOMedusaTwilioNgrokAnalyticsAndroidGot questions? We have answers.
Common questions about working with ContractSQ. Honest answers, no sales speak.
We primarily work with TypeScript, NestJS, React, PostgreSQL, Docker, and AWS. For AI projects, we use OpenAI, custom ML models, and computer vision tools. We choose the right tools for each project.
Let's Build Your NextSoftware System
Tell us about your project and we'll get back to you with a plan. Free consultation — no commitment required.
Start a Conversation
Get in Touch
Have a project in mind? Want to discuss your technical challenges? We're here to help you build the right solution.
Email Us
hello@contractsq.com
We typically respond within 2-4 hours
Call Us
+370 623 59629
Mon-Fri, 9AM-6PM EET
Visit Us
Vilnius, Lithuania
By appointment only