Hire Expert
Access pre-vetted senior JavaScript engineers ready to ship production code from day one. No recruitment fees, no long-term commitments.
Engineers in Network
Success Rate
Average Cost Savings
What Our JavaScript Developers Deliver
From greenfield builds to complex migrations, our engineers cover the full spectrum of JavaScript development.
End-to-end JavaScript across Node.js and the browser. Unified language, shared validation logic, and faster iteration between frontend and backend.
JavaScript Technical Excellence
Deep expertise across the JavaScript ecosystem, from architecture to deployment.
Modern JavaScript Patterns
- ES modules and dynamic imports
- Async/await and concurrent execution patterns
- Dependency injection and inversion of control
- Monorepo architecture with workspaces
- API layer design with middleware composition
Node.js & Runtime Engineering
- Event loop optimization and non-blocking I/O
- Worker threads and cluster module for CPU-bound tasks
- Stream processing for large data payloads
- Memory profiling and garbage collection tuning
- Serverless and edge runtime deployment
Testing & Code Quality
- Unit and integration testing with Jest and Vitest
- End-to-end testing with Playwright
- TypeScript adoption and gradual migration strategies
- ESLint rule authoring and static analysis
- Code review standards and PR automation
Client-Side Performance
- Core Web Vitals diagnosis and remediation
- Tree shaking, code splitting, and lazy loading
- Web Worker offloading for heavy computation
- Network waterfall analysis and prefetching strategies
- Third-party script auditing and containment
The Numbers Speak
Proven results that demonstrate our commitment to your success
How It Works
Discovery
Tell us about your tech stack, team culture, and what you need. We listen and map out exactly what you're looking for.
Why Flylance
Our Engineers
Senior engineers from across the Americas, ready to join your team.
“I built a company-wide AI chat platform where employees across different business lines interact with tailored AI assistants for everything from composing emails to generating client-ready presentations. Diana found me on LinkedIn, Hugh supported me through relocating to an entirely new country, and the whole thing was seamless. I have never worked with a staffing partner that makes you feel this valued.”
“I built a high-scale data migration system that ensured 100% accuracy across millions of real-time warehouse transactions while the platform transitioned to a new architecture. Diana recruited me and Hugh has been my main point of contact ever since. They consistently advocate for my work with the client and create real opportunities for growth. Flylance operates as a genuine partner, not a middleman.”
“I build backend solutions with .NET and Azure, from APIs to rules engines that handle complex data processing across thousands of company documents. Diana brought me into the network and everything from onboarding to payments has been smooth. What I can say is that Flylance is a great place to work and the teams are genuinely interested in helping each other.”
“I build and maintain large-scale data pipelines on Palantir Foundry, and one of my proudest moments was redesigning the financial reconciliation architecture across multiple legacy systems to improve data quality and reporting reliability. Hugh guided me through the entire process from day one. His transparency and responsiveness made a real difference in my decision to join, and the experience has been just as strong since. Flylance combines serious projects with a genuinely human approach.”
How Fast Can You Scale?
See how quickly you can build your engineering team.
Configure Your Team
Based on:
- • Pre-vetted engineers ready to interview
- • Time-zone aligned talent from the Americas
- • Dedicated support through onboarding
Your Timeline
First Candidate
vs 10 weeks traditional hiring
Full team assembled
Traditional timeline
Recruiting handled for you
No job postings, screening, or agency coordination
What to Expect
Honest commitments we stand behind
No recruiting fees
We don't charge recruiting fees to find candidates. You pay for engineering work, not matchmaking.
Transparent pricing
No hidden costs or surprise fees. You know exactly what you're paying before any engineer starts.
Dedicated support
Ongoing account management—not just match-and-forget. We stay engaged throughout the engagement.
Month-to-month flexibility
No multi-year contracts. Scale your team based on project needs without long-term lock-in.
Start Your JavaScript Project
Tell us what you need — we'll match you with a JavaScript engineer within a week.
Frequently Asked Questions
Everything you need to know about working with Flylance.
Ready to Build with JavaScript?
Tell us what you need — we'll match you with senior JavaScript engineers this week.