We are 40bits
40bits is a US-Based, senior-only engineering studio. Every project is handled by experienced developers who are used to hard problems, tight timelines, and real production systems. We use AI to accelerate our work, not replace it, so you get clean, well-tested software that ships fast and holds up years later.
Built to Perform. Ready to Scale.
From senior-level engineering to seamless delivery, every feature is designed to push your business forward - faster, cleaner, and without long-term headaches.
Precision Engineering
Built by senior developers with exact attention to detail - fast, stable, lean, and free of unnecessary complexity.
Seamless Integration
Our solutions slide into your existing workflows without breaking anything, rewriting everything, or slowing teams down.
Scalable by Design
Every system is engineered to grow. More users, more data, more features - without falling apart months later.
Security First
We apply proven security practices and senior-level code quality to protect your data and reduce operational risk.
Built for Compliance
Designed to meet strict US regulatory standards, making audits, certifications, and future-proofing far easier.
Real Results, Delivered
We solve real problems without the noise - clean execution, predictable delivery, and measurable impact on your operations.
Experience Trusted by Leading Companies
Our senior engineers have built and maintained software for some of the world's most respected organizations. These logos represent the companies our developers have contributed to throughout their careers. Experience we now bring directly to your project.
Real Projects. Real Impact.
A look at how our senior engineers fix broken systems, remove bottlenecks, and deliver complex projects without delays every time.
Gorgias
web app
Brought in to resolve serious issues and stabilize the project. Fixed core blockers, improved reliability, and ensured the product shipped on schedule.
What We Do
Purpose-built web apps and plugins.
Hire Senior Engineers
Senior Talent From $95/Hour
- Senior Developers Only
- True Full-Stack Development
- Built-In Tech Lead
- Seamless Team Integration
- Flexible Hour Blocks
- QA & Security Included
- Intro Pricing For New Clients
Fixed-Price Projects
Clear scope. Predictable delivery.
- Senior Engineering Team
- Fixed Scope & Price
- Architecture, UX, QA
- New Builds, Migrations & Rebuilds
- Reliable Timelines
- Optional Maintenance & Support
- Initial Scoping Workshop
FAQ
Both. We support startups, agencies, and enterprise teams that need senior engineering without hiring full-time staff.
PHP, JavaScript, Python, SQL, custom backends, APIs, and full-stack web applications.
You buy a block of hours, and we deliver work on demand. Time is tracked precisely, with full transparency.
Yes - architecture, UX, development, QA, and deployment. Milestones and pricing are agreed upfront.
Easily. We plug into your workflow, tools, and standups without slowing anyone down.
Depends on scope. Hourly work begins immediately; fixed-price projects get timelines during scoping.
Yes. Maintenance and support packages are available for both project and hourly clients.
Simple - contact us, tell us what you need, and we outline the best path forward.