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.

Scope Your Build See what we build

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.

Custom SoftwareWebsitesWeb AppsMobile AppsUI/UX

Architecture

POST /ordersGET /inventory

contracts signed off

Buildmigration

phase 2 of 3

Integrations

ERP · SAPCRM · SalesforcePayments · Stripe

12 systems connected

Custom Software DevelopmentArchitecture, design, development, and deployment for enterprise systems, SaaS platforms, and the integrations connecting them.

◆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

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Uptime

99.98%

p95 210ms

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.

◆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

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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.

◆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

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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.

◆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

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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.

◆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

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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

Software we built, and what changed after.

Read all case studies

Hand holding a tablet showing a resale trade-in evaluation for a backpack

Retail & CPG

60% faster load timesRecurate’s Digital Resale Revolution: Engineering Speed, Scale and Seamless IntegrationApplication EngineeringRead the case study →

Logistics & Mobility

85% faster support resolutionReplatforming Urban Mobility: A Car-Sharing Pioneer’s Global Expansion BlueprintApplication EngineeringRead the case study →

Low-angle view of glass office skyscrapers

Real Estate & PropTech

35% faster development cyclesScaling an AI-Powered Global Real Estate Platform for Optimized PerformanceApplication EngineeringRead the case study →

Process

Our Custom Software Development Steps

01Requirements & PlanningWe start by understanding your business goals, current workflows, and software requirements, defining a clear roadmap before development begins.

02Architecture & PrototypeOur team designs the system architecture and creates prototypes that validate the approach before a single production line of code is written.

03Development & TestingSenior engineers build in short, reviewable increments, with automated testing, code review, and continuous integration throughout.

04Deployment & SupportWe ship to production with zero downtime deployment strategies, then stay on, monitoring, maintaining, and evolving the product.

Engagement Models

Three ways to bring us in

Let's Talk

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

Tools & Technologies

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

Industries we serve

Helping every industry to excel in digital world

Explore More

Telecommunications tower in foggy weather, with more towers visible in the distance

Travel & HospitalityBooking, property, and guest platforms that hold up through peak season traffic.

Interior of a multi-level shopping mall with an escalator and shoppers

Retail & CPGCommerce, inventory, and store systems connected into one operating picture.

Oil, Gas, and EnergyField, asset, and compliance applications built for regulated environments.

Contactless payment being tapped on a card reader at a retail counter

Banking & FinanceSecure customer and back-office platforms modernized without service gaps.

FAQs

Frequently Asked Questions

Still have a question about scope, timelines, or taking over an existing build?

Let's talk

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.

Can you take over an existing codebase?+

Yes. We start with a codebase and architecture audit, then take over development from wherever it currently stands.

How do you keep our data secure?+

Access controls, encrypted data at rest and in transit, and secure development practices, configured to match your industry's compliance requirements.

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

Application EngineeringHave a system in mind? A senior engineer scopes it in one call, no account manager relay.Let's Talk

The Foundation Behind Every Successful Software Solution.

Trusted by teams worldwide

What’s Actually Slowing Your Software Down?

One engineering team, from architecture to release.

Every layer of your product, built by one team.

What makes our engineering different

Software we built, and what changed after.

Our Custom Software Development Steps

Three ways to bring us in

Equipped with the latest tools

Helping every industry to excel in digital world

Frequently Asked Questions

Scope your build with a senior engineer

Thanks, that's with us.