Production-grade web apps
Web apps shipped, not endlessly prototyped.
End-to-end web app development. Discovery, UX, frontend, backend, DevOps, QA, one senior team, TypeScript-first, cloud-native, and ML-ready.
- 6-16wkMVP to launch
- 100%TypeScript
- < 120msmedian API response we design and test to
- Weeklypost-launch iteration cadence
Web app development is the building of software that runs in a browser and holds real state: accounts, permissions, data models, background jobs, and an API underneath. Cubitrek takes it end to end and TypeScript-first, from discovery and UX through backend, cloud, and QA, with AI and ML features specced into week one rather than deferred to a phase two. Most agencies ship one side of the stack, they build a frontend and hand off a broken backend, or vice versa. We run the whole lifecycle: product strategy, UX, full-stack engineering, DevOps, QA, and post-launch maintenance.
What we ship
Everything under one roof.
Frontend engineering
Next.js, React, Remix, performant, accessible, and component-driven.
Backend & data
Node, Python, Postgres, Redis, Kafka, REST, GraphQL, or tRPC.
Cloud & DevOps
AWS, GCP, Vercel, Cloudflare, IaC, CI/CD, and observability from day one.
AI/ML integration
RAG pipelines, LLM orchestration, embeddings, and model ops built in.
Security & compliance
SOC 2-ready patterns, SSO, audit logs, and zero-trust defaults.
QA & automation
Unit, integration, and E2E test coverage, not bolted on at the end.
AI in the loop
The agents that ship alongside your product team.
Modern web apps are built faster than ever because the routine work of scaffolding, testing, and reviewing is now an agent's job. Senior engineers stay focused on architecture and UX.
PR review agent
Reviews every pull request for security, accessibility, and regressions.
- Trigger
- Runs on PR open and every push.
- Output
- Inline comments plus a pass or fail verdict before a human reviews.
Test generation agent
Produces unit and end-to-end tests for new components and API routes.
- Trigger
- Fires when a feature is merged without tests.
- Output
- Generated tests in the repo with coverage deltas logged.
RAG retrieval agent
If your app uses LLMs, ranks and cleans retrieval results before they hit the model.
- Trigger
- Runs on every LLM request.
- Output
- Cleaner context, fewer hallucinations, lower token bills.
Error triage agent
Groups production errors by root cause and proposes a fix.
- Trigger
- Runs on every Sentry event cluster.
- Output
- Triaged ticket in Linear with a suggested code diff.
Your team ships product features. Our agents keep the platform healthy underneath.
How we work
How the work actually runs.
- 01
Discovery
We spec the product, users, and non-negotiables in 2 weeks.
- 02
Architecture
Stack choices, data model, and infra plan, documented and reviewed with your team.
- 03
Build in sprints
Two-week sprints with production deploys every sprint. You see progress, not promises.
- 04
Launch & scale
We stay on retainer for growth, stability, and compounding iteration.
What good looks like
Representative outcomes.
Directional numbers from real programs. On the call we walk through the case studies behind them, method included.
- median API response we design and test to
- < 120msmedian API response we design and test to
- rollback before anything reaches production
- Testedrollback before anything reaches production
- to operate after launch, if you want it to be
- Oursto operate after launch, if you want it to be
Who we serve
Categories we already know.
- SaaS
- Fintech
- Healthcare
- Education
- Real estate
- Logistics
What clients say
I was particularly impressed by their creative approach and attention to detail.
Videography & photography company · website, SEO + design
They delivered the project on time.
Watch retailer · Shopify store build
Cubitrek always had a positive mindset and was kind.
Personal training company · video + social media
Questions buyers ask us.
- TypeScript across the stack. Next.js + React for frontend; Node, Python, and Go for backend. Postgres and Redis for data. AWS, GCP, and Cloudflare for infrastructure.
- Yes, RAG pipelines, LLM orchestration, embeddings, vector search, and model monitoring are a core specialty.
- You own everything, source code, credentials, IP. We push directly to your repos.
- SOC 2-ready patterns by default: SSO, audit logs, encrypted secrets, and least-privilege roles. We can work with your compliance team.
- Most engagements are 3-6 people, product lead, senior engineers, DevOps, and QA. Scales up as needed.
Ready when you are
Ready to start web app development?
A 15-minute call. We map the goal, look at what exists, and come back with a scoped plan.