Node.js Development
Real-time apps, APIs, high-concurrency. Express, NestJS, Fastify.
→From MVP to scale—we've helped 40+ startups build backends that grow with their business. APIs, databases, and cloud infrastructure handled by a dedicated team. Start with a 14-day risk-free trial.
Oleg Kalyta
Founder & AI Lead
Trial Sprint
Ship your first feature risk-freeBackend Delivered
Production-ready infrastructureContinuous Support
Maintain, optimize, scaleHere's what we help startups overcome.
Your app is slow and users are leaving before it loads
Database optimization, caching layers, and query tuning. We've made backends 10x faster.
Your backend can't handle traffic spikes without crashing
Scalable architecture with load balancing, auto-scaling, and proper resource management.
Security vulnerabilities keep you up at night
OWASP compliance, encryption, secure authentication. Security built in from day one.
Your systems don't talk to each other, creating manual work
API development and third-party integrations that actually work reliably.
Legacy code is impossible to maintain or extend
Modernization without full rewrites. Incremental improvements that don't break what works.
You need to ship fast but can't find reliable backend developers
Senior developers who integrate with your team. 2-week sprints with working code.
Get your product to market fast. We build lean, functional backends that prove your concept without over-engineering. Ship in 4-6 weeks, iterate based on real user feedback, scale when you're ready.
We build backends from scratch using Node.js, Python, or whatever stack fits your project. Not cookie-cutter solutions—actual architecture designed around your business logic.
REST APIs, GraphQL, WebSockets—we build and document APIs that your frontend team will thank you for. Plus third-party integrations that actually work.
PostgreSQL, MongoDB, Redis, DynamoDB. We design schemas that scale and don't require a rewrite when you hit 10x users.
AWS, Google Cloud, Azure deployment with CI/CD pipelines, Docker, Kubernetes. Infrastructure that deploys itself and alerts you before things break.
Database indexing, query optimization, caching layers, load balancing. We've made backends 10x faster by fixing what others missed.
Not sure which tech stack to use? Wondering if your architecture will scale? We do technical audits, architecture reviews, and help you make decisions you won't regret in two years.
40+ Startups Launched
Startup-Friendly Pricing & Flexibility
Full-Stack Team, No Handoff Gaps
Node.js & Python Experts
Security Without Slowing You Down
We Stick Around After Launch

From idea to App Store in 8 weeks. AI-powered health tracking with secure backend, real-time syncing, and encrypted data handling.

Financial management app with Plaid integration, real-time transaction syncing, and bank-grade security. Built for a small founding team.

Started as a side project, now serves 5M+ monthly users. Node.js, PostgreSQL, Redis caching. Shows what happens when your startup takes off.
30-minute call + a written plan: what to build first, estimated costs, and timeline. Yours to keep, no strings attached.
Multi-tenant architecture where each customer gets isolated data but shares infrastructure. Subscription billing with Stripe, usage-based pricing, seat management. Role-based access control for team features. Webhook systems for integrations, API rate limiting, audit logs for enterprise clients. The backend complexity that turns a tool into a business.
See example:AI Support AgentMulti-tenant AI platform, 1000s tickets/day→APIs optimized for mobile: efficient payloads, offline-first sync, push notification infrastructure. Background job processing for heavy operations. Real-time updates via WebSockets for chat and live features. Image optimization and CDN integration. The server-side work that makes mobile apps feel fast and reliable. See our Mobile App Development services for full-stack mobile solutions.
See example:HealifyiOS health app, real-time sync→Server-side rendering for SEO, session management, OAuth authentication flows. Database queries optimized for dashboard views. File upload handling, export functionality, admin panels. Everything a production web app needs to serve thousands of concurrent users without breaking a sweat. See our Web Application Development services.
See example:Rocket League Garage5M+ users, complex web platform→WebSocket servers handling thousands of persistent connections. Live trading feeds, collaborative editing, chat systems with typing indicators. Presence detection, read receipts, real-time notifications. Redis pub/sub for message distribution, connection state management. Backends where milliseconds matter.
See example:EnsemblReal-time chat, community networking→Two-sided platforms with separate buyer and seller experiences. Stripe Connect for split payments and payouts. Search and filtering across listings, review and rating systems. Escrow logic, dispute handling, trust scores. Messaging between parties, booking flows. The complex orchestration that makes marketplaces actually work.
See example:Breeze$2.5M raised, tenant-landlord matching→Headless backends designed for multiple frontends: web, mobile, third-party integrations. Well-documented REST or GraphQL APIs with versioning. OAuth2 for third-party access, rate limiting, usage analytics. SDKs and developer documentation. Backends built to be consumed by others.
See example:EvLuvOCPP API, 65K+ stations integrated→We pick the right tool for the job—and your budget. For most startups, that means Node.js + PostgreSQL on AWS, deployed in days, not weeks.
Deep expertise in the technologies that power modern backends:
Fast Track for MVPs: 4-6 weeks end-to-end. Here's our process:
We dig into your requirements, map out data flows, and design a system architecture. For MVPs, we focus on what matters now and what can wait.
Cloud environment, CI/CD pipelines, staging servers. Automated deployments from day one so you can ship fast and often.
The actual coding. 2-week sprints with demos. You'll see working software early and often—course-correct before it's too late.
Security checks, performance testing, and deployment. We stick around post-launch to catch anything weird.
We've built backends across these industries—from early-stage startups to companies handling serious production traffic:
Multi-tenant backends with subscription billing, role-based access, and usage analytics. Workflow automation tools, CRM integrations, API-first architecture. We build backends that handle enterprise requirements while staying fast to iterate on.
See example:AI Support Agent1000s tickets/day, $0.02/conversation→Two-sided platforms with buyer/seller flows, payment splits via Stripe Connect, review systems, and trust scores. Listing management, search and filtering, messaging between parties. The complex matching logic that makes marketplaces actually work.
See example:Breeze$2.5M raised, tenant-landlord matching→Payment processing, banking integrations via Plaid, transaction reconciliation, and compliance-ready architecture. Loan management, credit scoring, financial dashboards. Security-first backends that pass audits and handle real money.
See example:RaisalAcquired by Iuvity, mortgage marketplace→Healthcare backends with HIPAA security features for health apps, patient portals, and telemedicine platforms. Secure data handling, appointment scheduling, EHR integrations. AI-powered health insights with proper encryption and audit logging.
See example:Healify$2M raised, AI health companion→Real-time multiplayer backends, leaderboards, matchmaking systems, and in-game economies. WebSocket-based live updates, caching for low latency, handling millions of concurrent users. From companion apps to full gaming platforms.
See example:Rocket League Garage5M+ users, 8 years running→Points systems, gift card integrations, fraud detection, and payout management. User verification, anti-abuse measures, analytics dashboards. Backends that scale with viral growth while keeping bad actors out.
See example:Playback Rewards600K+ users, gaming rewards→Device management, real-time data ingestion, OCPP protocol integration for EV chargers. Sensor data processing, firmware update distribution, hardware-to-cloud communication. Backends that bridge physical devices to digital services.
See example:EvLuv65K+ charging stations→Tournament management, ELO rating systems, booking platforms. Real-time match updates, player statistics, community features. Backends for sports apps that keep players engaged and coming back.
See example:FunPadel100+ players, 6 countries→Transparent pricing for startups at every stage. Prefer hourly? We offer flexible arrangements starting at $35/hour.
$5,000 – $10,000
2-4 weeks
For startups with an existing frontend who need backend help fast.
Best for: Hackathon-to-product, technical co-founder support, MVP validation
$10,000 – $20,000
4-6 weeks
Full MVP backend to validate your product idea.
Best for: Early-stage startups, seed-funded products, proof-of-concept
$25,000 – $50,000
8-12 weeks
Production backend built for growth with proper infrastructure.
Best for: Post-funding startups, B2B platforms, customer-facing products
Payment gateways, CRMs, and third-party APIs add complexity. Each integration requires API research, error handling, and testing.
High-traffic systems need more robust architecture—caching layers, load balancing, database optimization, and infrastructure planning.
Industry compliance requirements add security measures, audit logging, and documentation. Typically adds 15-25% to the project.
WebSocket-based features like live updates, chat, or notifications add development time and infrastructure complexity.
What most impressed me about ProductCrafters was their dedication to my project and understanding of our goals. They were very honest and transparent throughout the entire process.
They were flexible, and it was easy to work with them on a day-to-day basis. Their brilliant ideas were critical to the project success.

Out of over 40 applicants, we selected ProductCrafters based on their experience, technical expertise, and cost estimate. The team showed deep technical expertise, a strong work ethic, and honesty.

The team has honest billing practices and creates incredible value for the cost. Working with ProductCrafters has saved us hundreds of thousands of dollars compared to domestic firms.

The quality of their code makes them a valuable partner. They thought holistically about solutions and brought up all-encompassing ideas.

Their insightful advice has maximized the application's performance. We're actually learning things from ProductCrafters that we can adapt and use in other applications.

Customer stories


Trial Sprint
Ship your first feature risk-freeBackend Delivered
Production-ready infrastructureContinuous Support
Maintain, optimize, scale
Oleg Kalyta
Founder & AI Lead