Since 2010
15+ Years Building
JavaScript Development Across the Whole Modern Stack
From browser to server, we write JavaScript the current ecosystem actually runs: ES modules, async patterns, and tooling that keeps bundles lean, with legacy codebases brought forward without rewrites. Fixed written quotes.
- 15+ years
- Building Software
- 500+
- Engineers
- 25+
- Countries Served
- 100%
- Source-Code Ownership
Trusted by the brands we build for
A track record you can verify
9,000+
Projects Delivered
3,900+
Apps Shipped
500+
Engineers
insight
What JavaScript Development Means at Moxace
JavaScript development at Moxace spans the language's real habitat: interactive frontends, Node services, and the glue between them. We write modern JavaScript with the discipline TypeScript adds where the codebase warrants it, and we modernize legacy JS without pretending a rewrite is always the answer.
Bring us in for products that live in the browser, for teams that need senior JavaScript capacity across a mixed stack, or for legacy codebases carrying years of accumulated patterns that need deliberate modernization.
What Every JavaScript Development Engagement Includes
Scoped in writing before the first sprint. If it is not on this list, we will tell you exactly what it costs to add it.
Modern language features
ES modules, async/await, and current APIs used idiomatically, with transpilation only where browser targets require it.
Progressive typing
JSDoc and TypeScript adoption introduced incrementally, giving safety to legacy files without a big-bang conversion.
Bundle discipline
Tree-shaking, code splitting, and dependency audits keeping delivered JavaScript measured and small.
Async architecture
Promise chains, cancellation, and error boundaries handled so failures degrade gracefully.
Browser compatibility strategy
Targets defined, tested, and documented, so feature support is a decision, not a bug report.
Legacy modernization
Old JS codebases refactored in shippable steps: modules first, then typing, then framework where justified.
What You Can Build With JavaScript Development
Representative outcomes our JavaScript Development teams deliver.
Interactive web apps
Frontends with complex state and real-time behavior, framework chosen per product.
Node services
APIs and workers covered by their own page, called on where the fit is right.
Widget and SDK development
Embeddable scripts and libraries distributed to other sites with strict size budgets.
Legacy rescues
Untested legacy JavaScript brought under test and modernized incrementally.
How the engagement runs
From first call to handover, with a working build to see every two weeks.
- 01
Scoping call
One hour on the product and its browser and runtime targets, ending with a fixed written quote.
✓ step 01 complete - 02
Architecture sprint
Module structure, browser targets, and tooling documented, or the existing code audited.
✓ step 02 complete - 03
Two-week build sprints
Deployed increments every two weeks, demoed on real browsers and devices.
✓ step 03 complete - 04
Quality gates
Lint, test, and bundle budgets enforced in CI on every pull request.
✓ step 04 complete - 05
Handover
Documented code and contribution guides, with full source and IP ownership transferred.
✓ step 05 complete
The adjacent stack we bring
JavaScript Development never ships alone. These are the pieces we routinely wire around it.
Modern javaScript
Current language features across browser and server targets.
Vite and esbuild
Fast build tooling with measured output.
Web components
Framework-agnostic components where portability matters.
Playwright
Cross-browser E2E tests on the flows that matter.
ESLint and prettier
Consistency enforced by tooling, not memory.
AI inside the build
Where models genuinely earn their place in JavaScript Development work. Each ships wired to your data and sharpens as usage compounds.
AI chat interfaces
Streaming chat and assistant UIs in any framework or none.
Reads
Historic javascript development usage data and product telemetry
Changes
Recommendations retrain as new data arrives, without a rebuild
In-browser ML
WebAssembly and WebGPU inference for client-side intelligence.
Reads
Historic javascript development usage data and product telemetry
Changes
Recommendations retrain as new data arrives, without a rebuild
Semantic search frontends
Search experiences backed by embedding APIs.
Reads
Historic javascript development usage data and product telemetry
Changes
Recommendations retrain as new data arrives, without a rebuild
Content intelligence
Client-side tagging, moderation, and personalization hooks.
Reads
Historic javascript development usage data and product telemetry
Changes
Recommendations retrain as new data arrives, without a rebuild
Every build ships with
Standard inclusions on every engagement. Nine things you never have to ask for.
100% source code, full IP
The complete unencrypted codebase transfers to you, with documentation and deployment scripts.
Named senior team
The engineers who scope your build are the ones who write it. No bait-and-switch staffing.
Architecture blueprint
A documented system design covering data model, integrations, and scaling path, written before the first sprint.
Sprint demos every 2 weeks
A working build demonstrated every two weeks, so you steer continuously instead of waiting for a reveal.
QA and security testing
Automated and manual QA on every build, plus a security checklist on each release candidate.
CI/CD and monitoring
Pipelines, cloud deployment, alerting, and observability configured from day one, so launch is a rehearsed event.
Fixed written pricing
A scoped quote in writing before work starts. No hourly meter, no surprise invoices mid-build.
60 days support
A post-launch support window covering bug fixes and environment issues, standard on every engagement.
Handover documentation
Code, infrastructure, and runbooks documented so any team, ours or yours, can pick the product up cleanly.
Hire a dedicated team or run a Fixed-scope project
Both tracks deliver the same JavaScript Development quality bar. The difference is control, timeline, and how the work is priced.
| Criteria | Dedicated Team (Hire) | Fixed-Scope Project |
|---|---|---|
| Best for | Ongoing JavaScript Development work with evolving priorities | A defined outcome with a clear finish line |
| Pricing | Predictable monthly team rate | Fixed written quote after scoping |
| Team | Engineers embedded in your rituals and tooling | Our PM, our process, demos every two weeks |
| Flexibility | Reprioritize the backlog any week | Change requests estimated and scheduled |
| Source code and IP | 100% ownership on delivery | 100% ownership on delivery |
| Start time | Team in place within 1-2 weeks | Kickoff within days of the signed scope |
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Why Teams Choose Moxace for JavaScript Development
Built by engineers who have shipped production software since 2010.
AI-first engineering
Where it genuinely helps, we fold AI into JavaScript Development work, from assistants to automation, drawing on 120+ AI products already in production.
Senior-only staffing
You get engineers who have done this before, not a junior bench learning on your budget.
Ownership and cost
A fixed written quote, 100% source-code ownership, and no licensing strings on your own product.
Global delivery, local accountability
500+ engineers serving clients in 25+ countries, with JavaScript Development work demoed live every two weeks.
JavaScript Development FAQs
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