Web Development & Software Engineering
From next-gen startups to established enterprises.
Design
The best custom software development companies include the best UX design. The best UX starts with strategic planning. By aligning our digital transformation solutions with your vision and goals, we become a true partner, starting at UX/UI design.
Services
We provide support for all of your custom software development projects.
HTML
CSS
JavaScript
Frameworks
The best software development firms start their web development projects at the design phase.
React.js
Next.js
Webflow
Shopify
DEV.co design process
Website visitors who land on your site will be at varying points in the customer journey.
Goal Identification
Research & Discovery
Prototyping
Testing & Review
Why invest
When users can find what they came for, they’ll develop a positive impression of your brand.
Influence visitor behavior
Eliminate barriers to conversion
Deliver a branded experience online
Clear calls to action
Develop
From product design mock-ups & MVP sprints to product iteration & QA (quality assurance) testing, our expert project management team and software development services have you covered.
Services
We provide support for all of your custom software development projects.
Node.js
Laravel
PHP
Backend Development
Our full-stack dedicated development team provides the front-end and back-end support your software projects deserve.
Python
C#/.NET
SQL/SQL Server
Oracle
Why invest
When users can find what they came for, they’ll develop a positive impression of your brand.
Influence visitor behavior
Eliminate barriers to conversion
Deliver a branded experience online
Clear calls to action
Deploy
Delivery of a product ready for “prime time” also means you have the custom software development support team to shepherd you through training, upgrades and feature add-ons. Software deployment is only the beginning of a journey.
Services
We provide support for all of your custom software development projects.
Node.js
Laravel
PHP
Deployment for the Web
Our full-stack dedicated development team provides the front-end and back-end support your software projects deserve.
React.js
Next.js
Webflow
Shopify
Innovative Software
Development Services
Our Services
At DEV.co, we provide full-stack custom software development solutions to businesses small and large.
As a custom software dev agency, we cover the full breadth of custom solutions by developing websites, mobile apps, custom portals, billing solutions, artificial intelligence, SaaS, big data, and other cloud-based applications.
12+ years as a software development company
For over a decade, we have developed a proven, repeatable system for delivering quality code. We provide solutions across the software development life cycle, ensuring we out-deliver above other custom software development firms on the market.
What We Do
Full-Cycle Software
Development Services
As an end-to-end software development company, we cover every stage of the software development life cycle — strategy, design, engineering, QA, deployment, and support. Expand any service to see how we deliver it.
Off-the-shelf tools force your business to bend around someone else's assumptions. Our custom software development services flip that — we build applications around the way your team actually works. From requirements discovery and architecture to coding, QA, and launch, you get a maintainable codebase that scales with you and a software development partner that sticks around after go-live.
- Discovery, scoping & technical architecture
- Full-stack engineering across web, mobile & cloud
- Clean, documented, fully owned source code
- Built to scale — microservices or modular monolith
We design and develop web applications that feel instant and hold up under load — customer portals, internal dashboards, marketplaces, and data-heavy SaaS front ends. Using modern frameworks like React and Next.js with battle-tested back ends, we ship accessible, SEO-friendly experiences that pass Core Web Vitals and convert.
- React, Next.js, Vue & TypeScript front ends
- Progressive web apps (PWA) & SSR for speed + SEO
- Role-based auth, payments & third-party integrations
- WCAG accessibility and Core Web Vitals tuning
Our mobile engineering team has shipped apps with 3M+ combined downloads. Whether you need a native Swift/Kotlin build or a cross-platform React Native / Flutter app from a single codebase, we handle UX, offline support, push, app-store submission, and the long-tail of updates that keep ratings high.
- Native iOS (Swift) & Android (Kotlin)
- Cross-platform React Native & Flutter
- Offline-first sync, push notifications & deep links
- App Store / Google Play submission & ASO support
We help founders and product teams take SaaS from whiteboard to recurring revenue. That means multi-tenant architecture, subscription billing, usage metering, admin tooling, and the analytics you need to understand activation and churn — all engineered to keep your unit economics healthy as you grow.
- Multi-tenant architecture & secure data isolation
- Stripe / subscription billing & usage metering
- Admin consoles, feature flags & onboarding flows
- Product analytics, A/B testing & telemetry
Enterprise software has to be reliable, secure, and integration-friendly. We build internal platforms, ERPs, and customer-facing systems that connect to the tools you already run, enforce role-based access and audit trails, and meet the security and compliance bar your industry demands.
- ERP, CRM & internal platform engineering
- SSO, RBAC, audit logging & data governance
- High-availability, fault-tolerant architecture
- HIPAA-, SOC 2- & GDPR-aligned builds
Not every project should start with an 18-month plan. Our MVP and rapid-prototyping sprints get a working, testable product in front of real users in weeks, not quarters — so you can learn, raise, and iterate with evidence instead of assumptions. Built clean so the MVP becomes the foundation, not throwaway code.
- Lean scoping to the riskiest assumptions first
- Clickable prototypes & functional MVPs in weeks
- Investor- and user-ready demos
- A codebase that scales past the prototype
Modern products live and die by their integrations. We design and build REST and GraphQL APIs, wire up third-party services (payments, CRMs, ERPs, logistics), and untangle data silos with reliable middleware — all documented, versioned, and rate-limited so partners can build on top of you with confidence.
- REST & GraphQL API design and versioning
- Third-party integrations (Stripe, Salesforce, HubSpot…)
- Webhooks, event streaming & middleware
- OpenAPI docs, auth & rate limiting
We architect cloud-native systems on AWS, Azure, and Google Cloud, then wrap them in the CI/CD pipelines, infrastructure-as-code, and monitoring that let you deploy with confidence. The result is software that's cheaper to run, faster to release, and observable when something goes wrong.
- AWS, Azure & Google Cloud architecture
- CI/CD pipelines & infrastructure-as-code (Terraform)
- Docker & Kubernetes containerization
- Monitoring, logging & cost optimization
Bugs caught in production cost 10x what they cost in development. Our QA engineers build automated test suites, run manual and exploratory testing, and shift quality left into the development process so regressions get caught before your users ever see them.
- Automated unit, integration & end-to-end testing
- Manual, exploratory & regression QA
- Performance, load & security testing
- CI-integrated test gates & coverage reporting
Legacy systems are usually running something too important to switch off and too brittle to extend. We re-platform, re-architect, and incrementally modernize legacy software — migrating off end-of-life frameworks, breaking monoliths into services, and moving to the cloud without a risky big-bang rewrite.
- Incremental re-platforming & strangler-fig migrations
- Monolith-to-microservices decomposition
- Database & cloud migration
- Framework upgrades & technical-debt paydown
Great software development starts at the design phase. Our product designers run research, map user journeys, and prototype interfaces that reduce friction and lift conversion — then hand engineering a design system that keeps every screen consistent as the product grows.
- User research, journey mapping & wireframing
- Interactive prototypes (Figma) & usability testing
- Reusable design systems & component libraries
- Accessibility-first, conversion-focused UI
Software is never 'done.' We provide ongoing maintenance, monitoring, security patching, and feature development so your application stays fast, secure, and aligned with your business as it changes — with SLAs and a dedicated team that already knows your codebase.
- Proactive monitoring & uptime SLAs
- Security patching & dependency updates
- Performance tuning & bug fixes
- Ongoing feature development & roadmap support
Sometimes you don't need a project — you need people. We embed vetted, senior engineers into your team to fill skill gaps and hit deadlines, or stand up a fully managed dedicated development team that operates as a seamless extension of your in-house org.
- Top-1% vetted, senior software engineers
- Embedded staff augmentation or fully managed teams
- Flexible ramp-up and ramp-down
- Time-zone-aligned, English-fluent collaboration
We help companies move AI from buzzword to feature — integrating LLMs, building retrieval-augmented (RAG) assistants, automating workflows, and shipping ML models into production with the data pipelines and guardrails that make them trustworthy.
- LLM integration, RAG & AI assistants
- Custom ML models & data pipelines
- Workflow automation & intelligent document processing
- Responsible-AI guardrails, evals & monitoring
Our Technology Stack
The Right Tech for the Job
We're technology-agnostic. We choose the stack that fits your product, team, and budget — not whatever we happen to specialize in.
Fast, accessible interfaces built on modern, well-supported frameworks.
Mobile Application w/3M+ downloads
Built for Android & Apple iOS
Fortune 100 Retailer Manages $1B+ in Sales
Our experienced, dedicated team provides the deep end-to-end engineering talent and knowledge of programming languages to deliver the right data analytics, strategic roadmap, and maintenance services required to complete your entire project at or below project cost.
Strategic software development support
As an end-to-end service provider, we deliver in-depth strategic support and custom software developer services to corporations, government entities and small/medium businesses across the globe, ensuring your digital success.
We aim to deliver on time and under budget
Our experienced, dedicated team provides the deep end-to-end engineering talent and knowledge of programming languages to deliver the right data analytics, strategic roadmap and maintenance services required to complete your entire project at or below project cost.
How We Work
Our Software Development Process
A transparent, agile software development life cycle that keeps you in the loop from first call to long after launch.
Discovery & Strategy
We dig into your goals, users, and constraints — then turn them into a clear scope, architecture, and roadmap before a line of code is written.
UX / UI Design
Research-driven wireframes and interactive prototypes get the experience right early, when changes are cheap — not after launch.
Agile Development
Senior engineers build in two-week sprints with demos every iteration, so you see working software early and steer as you go.
QA & Testing
Automated and manual testing run continuously, catching regressions and security issues before they ever reach your users.
Deployment
CI/CD pipelines and infrastructure-as-code push releases to production safely, repeatably, and with zero-downtime rollouts.
Support & Iteration
We monitor, maintain, and keep building — patching, optimizing, and shipping new features as your business evolves.
Engagement Models
Work With Us Your Way
Flexible engagement and pricing models that flex to your scope, timeline, and budget — not the other way around.
Fixed Price
Best for well-defined projectsYou bring a clear scope; we commit to a fixed budget and timeline. Predictable cost, ideal for MVPs and clearly bounded builds.
- Locked scope, budget & deadline
- Lowest budget risk
- Milestone-based billing
Time & Materials
Best for evolving productsPay for the work as it happens. Flexible scope that adapts as you learn — perfect for products that will iterate over time.
- Adapt scope sprint to sprint
- Transparent hourly billing
- Start before scope is final
Dedicated Team
Best for long-term roadmapsA fully managed, dedicated software development team that works only on your product as a true extension of your company.
- Your own senior squad
- Monthly, predictable cost
- Deep product knowledge over time
Staff Augmentation
Best for filling skill gapsDrop vetted senior engineers into your existing team to hit a deadline or add a specialized skill, managed by you.
- Top-1% vetted engineers
- Scale up or down fast
- You direct the day-to-day
Industries We Serve
Deep Expertise,
Across Verticals
Twelve-plus years of custom software development have given us domain knowledge across regulated and high-scale industries. Expand a vertical to see how we deliver in your space.
Secure, compliant platforms for payments, lending, trading, and digital banking. We build with encryption, audit trails, and PCI DSS / SOC 2-aligned controls so financial data stays protected and regulators stay satisfied.
HIPAA-compliant software for providers, payers, and health-tech startups — from patient portals and telehealth to EHR integrations and clinical workflow tools, built with privacy and interoperability (HL7/FHIR) at the core.
High-converting storefronts and headless commerce that scale through peak traffic. We build on Shopify, custom stacks, and ERP integrations to streamline catalog, checkout, fulfillment, and omnichannel retail.
From MVP to scale-up, we help software companies ship multi-tenant SaaS with subscription billing, analytics, and the architecture to grow from first customer to enterprise contracts without re-platforming.
Real-time tracking, route optimization, warehouse management, and fleet platforms that connect to the IoT devices, carriers, and ERPs your operation already depends on.
Listing platforms, property management systems, and transaction tooling with maps, document workflows, and CRM integrations that move deals forward faster.
Learning management systems, student platforms, and assessment tools built for engagement, accessibility, and the scale of a full student body during exam week.
Accessible, secure, citizen-facing services and internal systems built to Section 508 / WCAG standards with the documentation and security posture the public sector requires.
Why DEV.co
A Software Development Company
You Can Actually Trust
Plenty of firms can write code. Here's what makes DEV.co a different kind of software development partner.
Top-1% Vetted Engineers
Every developer clears a rigorous, multi-stage vetting process. You get senior talent — not a bench of juniors learning on your budget.
You Own Everything
100% of the source code, IP, and ad/cloud accounts are yours from day one. No lock-in, no hostage situations.
U.S.-Based Leadership
U.S.-based project leadership and communication, with time-zone-aligned delivery. No 2 a.m. calls to get a straight answer.
Radical Transparency
Sprint demos, shared backlogs, and direct access to your team. You always know exactly where your project stands.
Partner, Not a Vendor
We optimize for your outcomes, not billable hours — advising honestly even when the answer is 'don't build that yet.'
Security & Compliance First
We build to HIPAA, SOC 2, GDPR, and PCI DSS standards, with security baked into the development life cycle — not bolted on later.
Standards & methodologies we build to
FAQs
Frequently Asked
Questions
Here are some of the most common questions regarding our software dev services
Software development is the end-to-end process of designing, building, testing, deploying, and maintaining software that solves a specific problem. A software development company turns business requirements into working applications — custom web apps, mobile apps, SaaS platforms, internal tools, or enterprise systems — and supports them over their lifetime. At DEV.co we cover the entire software development life cycle, from discovery and UX design through engineering, QA, deployment, and ongoing support.
We're a full-cycle software development company offering custom software development, web and mobile app development, SaaS and product development, enterprise software, MVP and rapid prototyping, API development and systems integration, cloud and DevOps engineering, QA and testing, legacy modernization, UI/UX design, AI/ML development, and ongoing maintenance. You can also engage us for staff augmentation or a fully managed dedicated development team.
When choosing a custom software development company, weigh experience and technical depth, a verifiable track record and references, communication and transparency, security and compliance practices, and a flexible engagement model that fits your budget. The best partners deliver on time and on budget, give you full ownership of your code, and stick with you after launch.
The best software development companies share a few traits:
- Deep, demonstrable experience and senior engineering talent
- A strong reputation with references and case studies
- A track record of delivering on time and on budget
- Modern tools, frameworks, and a clear development process
- Transparent communication and full source-code ownership
- Security, QA, and post-launch support built into the engagement
Yes. DEV.co is an end-to-end provider, so a single team can take you from idea to launch and beyond: discovery and strategy, UX/UI design, agile development, QA and testing, deployment via CI/CD, and ongoing maintenance and iteration. You can engage us for the full SDLC or plug us into a specific phase.
Agile software development is an iterative, collaborative methodology where software is built in short cycles (sprints) with frequent feedback, rather than one big upfront plan. It lets you see working software early, adjust priorities as you learn, and reduce the risk of building the wrong thing.
Our agile process moves through five repeating stages:
- Initiation: gather requirements and define the goal
- Planning: scope the sprint, schedule, and budget
- Execution: engineers build and test in two-week sprints
- Delivery: working software is demoed for feedback
- Feedback: priorities are adjusted and the cycle repeats
Most minimum viable products ship in 6–12 weeks, depending on scope. We start by ruthlessly scoping to the riskiest assumptions, build a clean, functional MVP you can put in front of real users or investors, and architect it so it becomes the foundation for your full product — not throwaway code.
Custom software development is priced by scope and complexity. Most projects bill either time-and-materials (commonly $75–$250/hour depending on seniority and stack) or as a fixed price for a clearly defined scope, with dedicated-team engagements billed monthly. The biggest cost drivers are project size and complexity, the engagement model, required integrations, and security/compliance needs. Contact us for a free, scoped quote.
Factors that influence software development cost:
- The size and complexity of the project
- The engagement model (fixed price, time & materials, dedicated team)
- Required integrations, security, and compliance work
- The seniority and size of the team needed
- Timeline and how much changes mid-project
Custom software is built around your exact workflows instead of forcing your business to adapt to off-the-shelf tools.
Key benefits include:
- Increased efficiency — software designed around how your team actually works
- Competitive advantage — capabilities your competitors' off-the-shelf tools can't match
- Scalability — architecture that grows with you instead of capping you
- Full ownership — you own the code and IP, with no per-seat licensing traps
- Better integration — connects cleanly to the systems you already run
Quality and security are engineered in from day one, not bolted on at the end. We use automated unit, integration, and end-to-end testing alongside manual QA, run performance and security testing, and shift security left into the development process. We build to standards like SOC 2, HIPAA, GDPR, and PCI DSS where your industry requires them, with code review, dependency scanning, and CI-integrated test gates on every release.
We offer four flexible models: fixed price for well-defined projects, time-and-materials for evolving products, a dedicated development team for long-term roadmaps, and staff augmentation to embed vetted engineers in your existing team. We'll recommend the model that best fits your scope, timeline, and budget.
You do — 100%. From day one, all source code, intellectual property, documentation, and any cloud or third-party accounts belong to you. There's no vendor lock-in and no holding your product hostage. When an engagement ends, you walk away with everything.
Software is never truly 'done.' We provide ongoing maintenance and support including proactive monitoring and uptime SLAs, security patching and dependency updates, performance tuning, bug fixes, and continued feature development — handled by a team that already knows your codebase.
We've delivered custom software across fintech and banking, healthcare and medtech, eCommerce and retail, SaaS and startups, logistics and supply chain, real estate and proptech, education, and the public sector. That domain experience means we understand the compliance, scale, and integration realities of your space.
Timelines depend on complexity. A focused MVP typically takes 6–12 weeks, a mid-sized custom application 4–6 months, and large enterprise platforms longer. Because we work in agile sprints, you'll see working software early and get a realistic, milestone-based timeline during the discovery phase.
It starts with a free consultation. We'll learn about your goals, scope the work, and recommend an approach, timeline, and engagement model — with no obligation. From there, a short discovery phase locks in the requirements and architecture, and your dedicated team gets to work. Contact us today to get a quote on your next software project.