Application Engineering
The Foundation Behind Every Successful Software Solution.
Software engineered around how your business actually works, with AI built into the workflows where it earns its place, not bolted on afterwards.
90+Clients served
450+Engineering experts
50+Projects delivered
10+Years in custom software
Selected clients
Trusted by teams worldwide
Key Challenges
What’s Actually Slowing Your Software Down?
Generic SoftwareOne-Size-Fits-NoneGeneric tools force you to work around them.
Manual ProcessesWasted Time DailyRepetitive tasks slow your team down every day.
Disconnected SystemsData Silos EverywhereDisconnected tools mean data never tells the full story.
Limited FlexibilityCan't Adapt FastRigid software can't keep up with changing needs.
Our Approach
One engineering team, from architecture to release.
We design, build, and modernize the software that runs your business: custom platforms, web and mobile applications, and the interfaces your people use every day. One accountable team owns delivery end to end, so nothing is lost between handoffs.
Every application sits on a shared services and data layer, so a new channel, integration, or AI-assisted workflow extends what you already run. The same team then operates and extends it, so improvements ship as part of normal delivery rather than a new project.
What we engineer
Custom Platforms
Website Development
Web Applications
Mobile Applications
UI/UX Design
System Integrations
Legacy Modernization
AI-Assisted Workflows
Support & Evolution
Engineering disciplines
Every layer of your product, built by one team.
Architecture
POST /ordersGET /inventory
contracts signed offBuildmigration
phase 2 of 3
Integrations
12 systems connectedERP · SAPCRM · SalesforcePayments · Stripe
Custom Software DevelopmentArchitecture, design, development, and deployment for enterprise systems, SaaS platforms, and the integrations connecting them.Learn more
◆Architecture and API design signed off before build starts
◆Enterprise platforms that replace spreadsheet and email workflows
◆Legacy modernization in phases, current system running throughout
◆Integrations across ERP, CRM, and third-party services
Uptime
p95 210ms99.98%
Checkout servicehealthy
Search APIhealthy
Reporting workerqueued
Website Design & DevelopmentMarketing and corporate websites on Astro, React, WordPress, and headless CMSs, engineered to Google’s page experience standards and readable by AI answer engines.Learn more
◆Platform chosen on the brief: Astro, React, WordPress, or headless with Sanity
◆UI/UX run as a process, from content inventory through design system
◆Core Web Vitals and WCAG 2.2 AA set as budgets, enforced in CI
◆Technical SEO, AEO, and GEO structure built into the templates
Request lifecyclep95 budget 300ms
EdgeAPICacheDB
Front end render82ms
API + auth141ms
Cache hit path34ms
SSO · RBAC · audit trailall green
Web Application DevelopmentWeb platforms built for real workloads: responsive front ends, resilient back ends, and performance that holds under production traffic.Learn more
◆Component-driven front ends on a shared design system
◆Back ends built for concurrency, caching, and predictable p95 latency
◆Role-based access, audit trails, and SSO wired in from the start
◆Core Web Vitals, accessibility, and in-app AI search as release criteria
Day-7 retention
42%
Offline syncPush enabledDeep links
Crash-free99.7%Cold start1.2sStore rating4.6
Custom Mobile ApplicationsMobile apps engineered to engage: smooth interactions, native performance, and experiences that turn downloads into repeat users.Learn more
◆Native and cross-platform builds chosen on the product need, not habit
◆Offline-first data sync for field, retail, and logistics use cases
◆Push, deep links, and in-app analytics instrumented at launch
◆Store submission, release management, and post-launch monitoring
FlowUsability Score
Checkout96
Onboarding93
Search92
Usability index94/100
--space-4--radius-lgAA 4.8:1design system shipped
UI/UX Design & EngineeringInterfaces designed around how people actually use the product, then built by the same team that ships the code.Learn more
◆Discovery and journey mapping with the people who use the product daily
◆Prototypes tested before engineering commits to a direction
◆Design systems handed over as coded components, not static files
◆Accessibility and content structure built into every flow
Why Devsinc
What makes our engineering different
01One accountable team, architecture to releaseSenior engineers own the system end to end. No handoffs between a design vendor, a build vendor, and a support vendor.
02Built to fit the stack you already runWe integrate with your existing systems and data instead of forcing a rip and replace, so value lands release by release.
03AI only where it earns its placeWe apply AI to the workflows where it creates measurable leverage, and leave it out of the ones where it just adds noise.
Case Studies
Read all case studiesSoftware we built, and what changed after.
Retail & CPG60% faster load timesRecurate’s Digital Resale Revolution: Engineering Speed, Scale and Seamless IntegrationApplication EngineeringRead the case study →
Logistics & Mobility85% faster support resolutionReplatforming Urban Mobility: A Car-Sharing Pioneer’s Global Expansion BlueprintApplication EngineeringRead the case study →
Real Estate & PropTech35% faster development cyclesScaling an AI-Powered Global Real Estate Platform for Optimized PerformanceApplication EngineeringRead the case study →
Engagement Models
Let's TalkThree ways to bring us in
Project basedFull Product BuildEnd to end ownership of a platform, web app, or mobile app, from architecture through to release and handover.Best for a defined outcome
OngoingEmbedded TeamSenior engineers embedded alongside your team, working to your roadmap and your release cadence.Best for continuous delivery
Fixed scopeDiscovery & Modernization PlanA short engagement that maps your current stack and returns a costed, sequenced plan before you commit to a build.Best for deciding what to do
Equipped with the latest tools
React / Next.jsTypeScriptVue.jsAngularTailwind CSSNode.jsPython (FastAPI)Java (Spring Boot).NET / ASP.NET CoreReact / Next.jsTypeScriptVue.jsAngularTailwind CSSNode.jsPython (FastAPI)Java (Spring Boot).NET / ASP.NET Core
GoGraphQLPostgreSQLMongoDBRedisAWSAzureDockerKubernetesGoGraphQLPostgreSQLMongoDBRedisAWSAzureDockerKubernetes
React / Next.jsTypeScriptVue.jsAngularTailwind CSSNode.jsPython (FastAPI)Java (Spring Boot).NET / ASP.NET CoreGoGraphQLPostgreSQLMongoDBRedisAWSAzureDockerKubernetes
FAQs
Let's talkFrequently Asked Questions
Still have a question about scope, timelines, or taking over an existing build?How long does a typical custom software project take?
Most projects run 3 to 6 months from kickoff to launch, depending on scope. We define a clear milestone plan in the first two weeks.
What determines the cost of a custom build?
Scope, integration complexity and timeline drive cost more than team size. We scope every engagement against a fixed set of requirements first.
Who owns the intellectual property?
You do. Code, designs and documentation produced under the engagement transfer to you on delivery.
Get Started
Scope your build with a senior engineer
Tell us what you run today and where it breaks. You will get an engineering read on scope, sequence, and effort, not a sales pitch.
✓A senior engineer on the first call, not an account manager
✓Scope, sequence, and effort mapped against your existing stack
✓Full IP ownership of everything we design and ship