Web & Application Engineering
Full-stack engineering for the applications, APIs, and cloud infrastructure your product runs on — built to hold up under real load, not just a demo.
How We Can Help
This is the engineering work that sits underneath everything else — web applications, APIs that need to serve more than one client, and the cloud infrastructure that keeps it all running. It's also where we come in when the problem isn't a new product but an existing system that needs to be rebuilt, secured, made faster, or given a foundation that can actually scale.
What We Do
Key capabilities.
Web & Application Engineering
Full-Stack Web Application Development
End-to-end web applications — frontend, backend, and database — built with a stack chosen for your actual requirements, not whatever's trending. Most of our work runs on Next.js, PostgreSQL, and Node, but the stack follows the problem, not the other way around.
API & Backend Development
REST and GraphQL APIs designed to serve more than one client cleanly — your own web app, mobile app, and any partner integrations — with versioning and documentation that means someone other than you can build against it.
Security Engineering
Authentication, authorization, data encryption, and secure API design built in from the start, plus reviews of existing systems to find what's already exposed before someone else does.
Architecture & Scalability
Application Architecture
The structural decisions — how services are split, how data flows, where state lives — that are cheap to get right early and expensive to unwind later. We design architecture proportional to what your system actually needs at your current and expected scale, not the theoretical maximum.
Performance & Reliability
Profiling and fixing the specific bottlenecks slowing a system down, plus the reliability engineering — error handling, retries, graceful degradation — that keeps it running when something upstream fails. Both get measured with real numbers, not a vague promise that things will feel better.
Scalability
Designing and testing for the load you'll actually hit — the real growth curve of your business, not a fictional Silicon Valley scale — so the system that works today doesn't become the bottleneck at 10x.
Platform & Cloud Engineering
Cloud Architecture & Infrastructure
Infrastructure on AWS, GCP, or Azure, designed around your actual traffic and cost constraints rather than a generic reference architecture. This includes the decisions about what runs as a managed service versus what you own directly.
DevOps & CI/CD
Deployment pipelines that make shipping a change a routine event instead of a stressful one — automated testing, staged rollouts, and the tooling that lets a small team deploy confidently and often.
Observability & Reliability
Monitoring, logging, and alerting built in from the start, so a problem gets caught by a dashboard before it gets caught by a customer complaint — infrastructure someone can actually operate, not just infrastructure that happens to be running.
When You Need This
Signs it's time.
You need an engineering partner for something that isn't a marketplace or a SaaS product specifically — an internal tool, a customer portal, a backend service
An existing system has architecture problems that are now slowing the team down
You need APIs that serve multiple clients and have to actually be documented and stable
Deployment is stressful, monitoring is thin, or nobody's quite sure what happens if a dependency goes down
ACE's Approach
The application and the platform it runs on get designed as one system here, not handed between two separate teams — the same engineers who design the architecture also size the infrastructure underneath it. Overengineering is as much a risk as underbuilding: infrastructure sized for ten million users when you have ten thousand mostly just adds cost and complexity you didn't need yet.
Why ACE
Why ACE for Web & Application Engineering
We're engineers first — the marketplace, SaaS, and mobile work we do all sits on the same full-stack and infrastructure discipline. When a project needs backend, frontend, and cloud work that spans several categories, you're working with one team that owns all of it, not stitching together vendors to get it done.
What We Deliver
Technical architecture & system design
Full-stack application development
API design & documentation
CI/CD pipeline & cloud infrastructure setup
Security review & performance benchmarking
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