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Build

Custom Software DevelopmentSystems built to your process Web Application DevelopmentReact, Next.js, Rails, Django Mobile App DevelopmentiOS, Android, React Native SaaS Product DevelopmentMulti-tenant from day one MVP DevelopmentFirst release in 6–10 weeks Enterprise SoftwareSSO, audit trails, scale

Connect & operate

API Development & IntegrationREST, GraphQL, webhooks Cloud & DevOps EngineeringAWS, GCP, Azure, Terraform QA & Software TestingAutomated suites, load, E2E Legacy ModernizationStrangler-fig migrations Cybersecurity EngineeringHardening and remediation Data EngineeringPipelines, warehouses, reporting

Design & teams

UI/UX DesignInterfaces people finish tasks in Prototyping & DiscoveryScope before you spend Staff AugmentationSenior engineers on your team Dedicated Dev TeamsA full pod, one contract Technology ArchitectureDecide once, correctly Project ManagementDelivery you can audit

Start hereScope a build in one callBring a spec, a wireframe, or a paragraph. You leave with an architecture, a timeline, and a number.Book a scoping call

All software development services →How we price work →Talk to an engineer →

AI software

AI Application DevelopmentFull-stack AI products AI Agent DevelopmentMulti-step autonomous agents AI SaaS DevelopmentMulti-tenant AI products Workflow AutomationReplace manual ops Custom LLM AppsBranded internal assistants

LLM & data systems

Private LLM DevelopmentSelf-hosted Llama, Mistral, Qwen RAG DevelopmentCited answers over your docs MCP & WebMCPMake your systems agent-callable Vector Database Setuppgvector, Pinecone, Qdrant Document IntelligenceOCR and extraction pipelines

Vibe coding

AI-Assisted BuildsFast, with senior review Rapid PrototypingClickable in days Concept to CodeIdea to working software Code Review & CleanupMake AI output shippable Fractional AI TeamOngoing build capacity

Ready to ship?Put AI where the work isAgents, RAG, and private LLMs wired into the systems your team already uses — not a chatbot bolted to a homepage.Discuss an AI project

AI development services →AI readiness checklist →AI vs. traditional development →

Commercial

Financial ServiceseCommerce & RetailMarketing AgenciesReal EstateAutomotive

Regulated

Healthcare & HIPAALegalGovernmentEducationBanking

By company size

Startups & MVPsSmall BusinessEnterpriseAgriculture

Domain firstWe learn your workflow before we model itRegulated, operational, or high-volume — the constraints belong in the schema, not in a training doc.Talk about your domain

Selected workSoftware we own and operateMost agencies show screenshots. We run the products — the same stack, uptime, and on-call we hand to clients.View the portfolio

The DEV.co product network

AI ERP with agents inside the systems you run

AI phone and voice agents for real calls

LLM.coPrivate, self-hosted LLM deployments

Legal AI infrastructure for firms

AI RFP discovery and response drafting

Automatic.coBusiness process automation

CyberAttack.aiThreat detection and defense

Secure AI virtual data rooms

Compare

Custom Software vs. SaaSIn-House vs. OutsourcedMVP vs. Full ProductAI vs. Traditional Development

Tools & reading

Software Cost CalculatorProject Scope TemplateEngineering BlogOpen Source

Plan smarterEstimate before you commitCost ranges, scope templates, and the questions we ask in discovery — free, no form.Open the cost calculator

DEV.co

AboutCareersLocationsContact

Real conversationsTalk with a technical leadNo SDR, no discovery gauntlet. The person on the call is the one who scopes the build.Book a call

Open-Source CMS

Open-Source CMS & Headless CMS

Guides to open-source and headless content management systems — architecture, licensing, and building on them.

A software development agency for open-source projects

DEV.co is a software development agency offering custom software development services and web development for companies adopting open-source cms & headless cms. Our software developers and web developers evaluate, implement, integrate, customize, and maintain open-source software in production — so your team ships faster with less risk.

Building with open-source cms & headless cms?

DEV.co helps companies evaluate, customize, integrate, and deploy open-source software with senior software developers.

Talk to DEV.co Schedule a Consultation