Cloud Application Development
Cloud App Development Services For Systems That Must Stay Up
Cloud bills rarely surprise anyone on launch day. They surprise you in month seven, when an idle cluster, an oversized database and a log pipeline nobody owns now add up to one of the larger lines in engineering. Nobody decided that. We architect for the invoice as well as for the load.
Triple Protection Guarantee
- US-Registered Entity
- Signed IP Assignment
- Senior Engineers Only
Triple Protection Guarantee:
- US-Registered Entity
- Signed IP Assignment
- Senior Engineers Only
Years In Business
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Engineers On Staff
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Avg. Engineer Exp.
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Where Cloud Hurts
Cost Modelled
Before Build
Senior Engineers
Vetted Only
Timezone Overlap
Live Hours
Multi-AZ Setup
As Standard
Delaware LLC
US Entity
99.99% Uptime
Backed By SLA
IaC Everywhere
No Clickops
Observability First
Monitored
Compliance Fit
Documented
IP Assignment
Signed
Delivery Overlap
Fixed
Hours
Cloud Accounts
You
Trusted By Startups
What Our Cloud App Development Services Cover
Cloud app development means designing, building and running an application on cloud infrastructure rather than on a server somebody has to remember to patch. Cloud native application development goes further: the app is split into services that deploy and scale on their own, state lives in managed data stores, and the whole environment is defined in code so it can be rebuilt from scratch on a bad afternoon.
Stallyons is registered in Delaware as a US company, and our engineers work a time-zone window agreed before the project starts, with four-plus hours of daily overlap. You sign a US contract, run diligence on a US entity and pay one US invoice. Behind the work sits twelve-plus years of delivery across six continents and around thirty-five engineers, averaging four-plus years of production experience. Teams usually come to us after a scaling wall, a migration that stalled, or an invoice nobody could explain.
What Cloud Delivery Covers
Architecture chosen for the workload: serverless where traffic is spiky, containers where it is steady, managed data services almost always, and a written reason for each choice that survives the person who made it.
Reliability you can point at: multi-availability-zone deployment, health checks, automated failover and zero-downtime releases, backed by a 99.99% uptime SLA rather than by an assurance.
Security and compliance engineering: least-privilege IAM, encryption in transit and at rest, private networking and HIPAA, SOC 2, GDPR and PCI-DSS-aligned controls documented as they are built.
Cost as a design input: right-sized instances, autoscaling that scales down as well as up, storage lifecycle rules, and a tagged bill you can read by team and environment.
Infrastructure defined in code: Terraform modules, reproducible environments and reviewed changes, so nothing important exists only because somebody once clicked it in a console.
One accountable vendor: one contract, one invoice and one team answering for architecture, build, release and cost. 81% of clients come back for their next engagement.
What To Ask A Cloud App Development Company Before Signing
- Ask what happens when an entire availability zone goes down. If the answer involves somebody restoring a snapshot by hand, you do not have high availability yet.
- Ask to see the bill broken down by service and environment. A cloud account nobody can read by tag is a cloud account nobody is ever going to reduce.
- Ask whether the environment can be rebuilt from code alone. If staging has drifted from production, your rehearsals are not rehearsing anything.
- Ask how secrets are stored and rotated. Credentials pasted into environment variables during setup and then forgotten are the most common way into an otherwise sound system.
- Check the exit before you need it. The cloud accounts, the DNS, the container registry and the Terraform state should all sit in your own name from day one.
- Ask what is monitored and who gets paged. Dashboards nobody watches are decoration; an alert with an owner and a runbook behind it is an operations plan.
How A Cloud App Project Starts Here
Every project starts with a free 45-minute architecture session. No slide deck, no sales script. You bring the workload, the traffic pattern and the current bill; you leave with an architecture direction and a timeline.
We are selective about new engagements and cap how many run at once, because the scoping is the product. If a managed platform would serve you better than a custom cloud build, we will say so.
Why Clients Choose Us
Full
Written IP Transfer
USA
Contract Entity
Yours
Accounts & Domains
Named
Delivery Lead
Ready for infrastructure that scales down as well as up?
What We Build In The Cloud
The Cloud App Development We Deliver
Every workload has a different shape, and the underlying jobs repeat: choose the architecture, define it in code, ship it safely, watch it and control what it costs. These are the builds we deliver most often.
Cloud-Native Builds
Greenfield apps designed for cloud
Scales Out
Containers & K8s
Docker, EKS, AKS, GKE, Helm
Orchestrated
Serverless Apps
Lambda, Functions, Cloud Run, SQS
Per Call
Cloud Migration Waves
Rehost, replatform, refactor
No Downtime Cutover
Data Stores
RDS, Aurora, Cosmos, BigQuery
Managed Set
Autoscaling And HA
Multi-AZ, failover, health checks
Stays Up
Cost & FinOps Work
Right-sizing, tagging, lifecycle
Priced
Observability Setup
Metrics, logs, traces, alerts, runbooks
Actioned
Release Pipelines
Blue/green, canary, rollbacks
Rollback-Safe
Ongoing Cloud Support
Patching, backups, cover, capacity
Kept Running
Not sure where your cloud spend is going? Let us map it.
Common Challenges
Why Do Cloud App Builds Get Expensive?
Six patterns behind almost every cloud platform that has to be re-architected. All six of them start as a shortcut.
The Bill Creeps
01
Nothing was oversized on purpose. An instance was doubled for a launch, a test cluster was never torn down, and log retention was left at the default, and now the invoice grows on its own.
One Server, One Risk
02
Traffic doubles on the best day of the year and a single instance falls over. There is no second zone, no health check and no way to add capacity quickly.
Consoles, Not Code
03
Production was assembled by hand over three years. Staging no longer resembles it, so every rehearsal passes and every real release surprises somebody.
Deploys Are Scary
04
Releases happen at midnight because the only rollback plan is a database restore. Shipping slows to a monthly event, and small changes start carrying outsized risk.
Permissions Left Wide Open
05
One role was granted administrator access during setup and never narrowed. Buckets are public, keys sit in environment variables, and nothing records who did what.
Silent When It Breaks
06
There is no tracing, no alert routing and no runbook. You hear about the outage from a customer, then guess which service, region or query caused it.
Recognise a few of these? Let us fix them properly.
Our Cloud Services
6 Cloud App Development Services We Run
Six ways to buy cloud delivery from one accountable vendor. Run one, or run several in parallel under a single contract.
Cloud Architecture Design
01
An architecture chosen for your workload and written down: services, data stores, networking, failure modes and the cost each choice implies, before anybody provisions anything.
Cloud App Build-Out
02
Production applications built for the cloud: serverless where it fits, containers where it counts, managed data services underneath, and autoscaling that moves in both directions.
Containers & Kubernetes
03
Images, registries and orchestration on EKS, AKS or GKE, with Helm charts, sensible resource limits and horizontal scaling that reacts before users do.
Cloud Migration Delivery
04
Workloads moved in waves with a rollback at every step: dependency mapping, data migration rehearsals, an agreed cutover window and the old system kept warm.
Reliability Engineering
05
Service levels, multi-zone deployment, alert routing, runbooks and tracing wired through the API layer so failures surface early.
Cloud Cost & FinOps Work
06
Right-sizing, commitment planning, storage lifecycle rules and a tagging scheme that makes the bill readable by team, service and environment every single month.
Not sure which piece you need first? Let us scope it together.
Why Choose Us
What Makes Our Cloud App Development Services Different
The details that decide whether a cloud platform still behaves at ten times the traffic.
A US Legal Entity
01
Stallyons is registered in Delaware. Your contract, your invoice and your legal recourse sit with a US company, not an unknown one.
Architecture First
02
We write the architecture down, with failure modes and cost implications, before anything is provisioned. Diagrams outlive whoever drew them.
Overlap You Set
03
You choose the hours we share with your working day, and stand-ups, reviews and escalations all happen inside that window.
Uptime You Can Hold
04
Multi-zone deployment, automated failover and a 99.99% uptime SLA, with HIPAA, SOC 2, GDPR and PCI-DSS-aligned controls behind it.
Reviewed Code
05
Every merge is reviewed against an agreed definition of done, on your board, where you can read it yourself.
One Contract
06
One contract covers the engagement, so procurement, legal and finance each deal with a single named counterparty.
Ready to see what a proper cloud build looks like?
Our Process
From First Call To Cloud App Launch In Six Steps
A build process that settles architecture, security and cost before any code is deployed.
Discovery
Understand the workload, traffic and current bill
Scoping
Agree the architecture, scope and cost
Design
Environments, networking and data design
Contracting
NDA, IP assignment, access and onboarding
Deliver
Infrastructure as code, then the app
Run & Optimise
Monitor, autoscale and cut what sits idle
Want to see how this maps to your roadmap?
Technology Stack
The Stack Our Cloud App Developers Build On
The platforms and tooling we build on across every layer: compute, data, delivery, security and cost.
Cloud Platform
AWS Core Services
Azure Platform
Google Cloud GCP
Cloudflare
Firebase 10
Compute & Containers
Docker Build
Kubernetes / K8s
EKS/AKS/GKE
Lambda
Cloud Run / Fargate
Data & Storage
PostgreSQL / RDS
MongoDB Atlas
Redis & Caching Tier
Object Store
BigQuery / Warehouse
Delivery & IaC
Terraform / IaC
GitHub CI/CD
ArgoCD Sync
Blue/Green Releases
Secrets Manager
Ops & Security
Datadog Monitoring
Grafana Set
IAM & Least Priv
Node.js / Python Svc
Java / .NET Runtime
Who We Build This For
Cloud App Development Services For Every Kind Of Workload
Eight kinds of team with different workloads and one shared need: a platform that holds on its busiest day.
Scaling Startups
Outgrowing a single server fast
Enterprise IT Platforms
Moving off ageing data centres
Seasonal Commerce
Peak days that dwarf the rest
Consumer App Teams
Spiky traffic and global users
Data & Analytics Teams
Pipelines, warehouses, batch jobs
IoT & Telemetry Teams
High-volume ingest and storage
Regulated Workloads
Audit trails and data residency
Agencies & Consultancies
White-label cloud capacity
Working in a regulated sector? See all industries we serve.
How We Compare
Your Cloud App Delivery Options, Compared
An honest look at your four delivery options.
| Capability | Managed Host Reseller | In-House Generalist | Freelance Cloud Setup | Stallyons Technologies |
|---|---|---|---|---|
| Architecture decided before build | One stock pattern | Grown by accident | ✕ Not documented | Written, with failure modes |
| Multi-zone high availability | Single region | Planned, not built | ✕ One instance | Multi-AZ with failover |
| Environment rebuildable from code | ✕ Console-built | Partly scripted | Some Terraform | Terraform, state yours |
| Cost visibility and FinOps | Bundled invoice | ✕ Untagged | ✕ Out of scope | Tagged by team and environment |
| Least-privilege access and secrets | Shared logins | Broad admin roles | ✕ Keys in env vars | Scoped IAM, managed secrets |
| Monitoring with an owner | Host-level only | Dashboards, no alerts | ✕ None | Alerts, runbooks, tracing |
| Contracting entity & ownership | Varies | Your own payroll | ✕ Marketplace terms | US-registered LLC, your accounts |
See the difference for yourself
Complete Engagement
Everything Included In Your Cloud App Development Build
From Scoping to Contracting to Delivery, One Vendor
Here is everything included when you build your cloud app with us:
One Cloud App Build Price: No Hidden Fees, No Surprises.
Every cloud engagement includes all eight components above. One contract, one senior team, one predictable cost, and no vendor sprawl.
🔒 No obligation. We'll deliver a detailed proposal within 48 hours.
Plus, Get These Free Bonuses
Free Cloud Review
A written read on your architecture, single points of failure, security posture and spend, with the fixes ordered by what breaks first. Yours to keep.
Included Free
Build Plan And Estimate
A phased build plan with scope, milestones, the services it needs and a transparent, itemised estimate for the engagement.
Included Free
Free Vendor Checklist
The questions we would ask any cloud app development company about availability, cost, access and monitoring, so you can test us too.
Included Free
Risk-Free Partnership
Our Cloud App Development Promise
We stand behind every engagement with commitments that protect your investment.
01
Scope Agreed First
Scope, model, working hours and cost structure are written down and agreed before contracting, so nothing is discovered later.
02
Built to Last
Senior developers, code review, automated tests, security and accessibility audits, and clean, documented code you fully own.
03
IP And Access Protected
NDA and IP assignment are signed before access, permissions are scoped per person, and your accounts stay under your control.
Start your cloud build with confidence, backed by our Triple Protection Guarantee.
Track Record
Engagements That Ship, Scale, and Compound
500+
Projects Delivered
29+
Service Categories
81%
Repeat Client Rate
4.9 ★
Clutch Rating
"Stallyons took our Figma design and built it into a live web application, a cognitive game with level-based match play, messaging, a tutorial, and a directory that ranks users nationally. What impressed me most was their grasp of the code behind that logic, and the quality of the experience. Delivered on time with steady updates."
Jerry L.
Founder
PicCiti LLC
"We brought Stallyons in to absorb an overflow of work, and they delivered ten iOS and Android apps, from reporting to geo-location for logistics, plus several backend systems, owning design, development, and app-store submission. Everything stood out: code quality, speed, and reliability. Perfect code, on time, adopted company-wide."
William B.
Director
Amplo Solutions
FAQ
Frequently Asked Cloud App Development Questions
Cloud application development is building software that runs on cloud infrastructure and uses its managed services rather than treating a cloud account as a rented data centre. In practice that means compute that scales with demand, databases and queues you do not patch yourself, an environment defined in code so it can be recreated, and instrumentation that tells you which service is slow before a customer does.
They meet constantly and answer different questions. Cloud app development decides where an application runs and how it survives load, failure and its own bill: compute, data stores, networking, scaling and cost. API development decides the contract other software talks to, covering endpoint design, authentication, rate limits, versioning and third-party integration. A single project often needs both, and they are scoped separately because the risks differ.
Two numbers matter and they behave differently. Build cost follows how many services the architecture has, how much data is being moved and whether an existing system runs in parallel during migration. Run cost follows the architecture itself, which is why we model it before provisioning anything. We scope first, then price, and itemise each phase.
It describes an application designed for the cloud rather than moved onto it. Services deploy independently, instances are disposable, state lives in managed data stores, configuration comes from the environment and the infrastructure is defined in code. The practical test is simple: if you deleted the environment this afternoon, could you rebuild it tomorrow from the repository?
You do, from the first day. The cloud accounts, the DNS records, the container registry, the Terraform state and the repository are all registered in your name, and NDA and IP assignment are signed before anyone gets access. Everything we write is assigned to you outright, with no licence-back.
Usually, and the sequence matters more than the destination. We map dependencies first, then decide per component whether to rehost, replatform or refactor, because doing all three at once is how migrations stall. Data moves are rehearsed against a copy, the cutover has an agreed window, and the old system stays warm until the new one has earned the switch.
All three, and the choice follows the workload rather than a preference. AWS application development services suit the broadest service catalogue, Azure suits organisations already standardised on Microsoft identity and licensing, and Google Cloud suits data and analytics-heavy work. We write down the reason for the choice so it can be revisited later.
By making spend visible and then boring. Every resource carries tags for team, service and environment, so the bill can be read rather than guessed at. Non-production shuts down out of hours, storage has lifecycle rules, autoscaling is allowed to scale down, and steady baseline load is put on commitments once the pattern is clear.
Still have questions? Let's talk.
Schedule an appointment with us today!
Ready To Build A Cloud App That Stays Up?
Get a free consultation. We will review your architecture, name what is costing you, and send a written proposal.
