🚀 We build production software with agentic development, at a fraction of traditional cost and timelines. See how →
Agentic DevelopmentAI-agent delivery, .NET, React, Java
Cloud & Financial InfrastructureWeb, mobile, backend, payments
Refactoring & OptimizationLegacy to cloud-native, agentically
ERP ImplementationTurn-key ERPNext, 30% lower TCO
CybersecurityAppSec, pen testing, red teaming
Managed Security ArchitectureContinuous, business-aligned defense
Application & Infra OperationsOn-premise, cloud & financial infra
Urgent Incident ResponseContain the breach, get back to business
Consulting & DesignAgile, data analytics, architecture
Nextarp / Agentic Development
🤖 Flagship service

Agentic development.
Extreme cost-effectiveness, engineered.

We replaced the hourly-billed delivery team with a system: senior engineers directing orchestrated AI agents that specify, build, review, test and secure production software in parallel. You get senior-grade software at a fraction of traditional cost and calendar time.

.NET React React Native Java Fixed-price scopes

What changes for you

Same quality bar. Radically different economics.

Every deliverable is still owned, reviewed and signed off by senior engineers. What changes is the machinery underneath: agents do the parallel heavy lifting that used to consume team-months.

5–10×
faster from specification to working software
Fraction
of the cost of a traditional agency team
100%
of changes pass multi-agent review and security analysis
📄
Fixed price, fixed scope
Because agent effort is cheap and predictable, we quote outcomes, not hours. Change requests are re-quoted, not silently billed.
📅
Working demos every week
You review running software from the first week. No big-bang reveal at the end of a six-month engagement.
🔍
Everything is auditable
Every requirement, agent task, review finding and test result is traceable. You can audit how your software was built, line by line.

The method

From idea to production in four disciplined phases.

Techniques we developed and hardened while building our own products, now applied to every client engagement.

1
Specify
Senior architects translate your goals into precise, testable specifications with executable acceptance criteria. This is where the thinking happens.
2
Orchestrate
Specialised agents implement backend, frontend and mobile work in parallel, each in its own isolated workspace, coordinated like a professional team.
3
Verify
Independent review agents inspect every merge for correctness, security and performance. Adversarial test agents attack the software before anyone else can.
4
Ship
Senior engineers integrate, sign off and deploy. CI/CD, infrastructure as code and monitoring included, from day one, not as an afterthought.

Techniques

The delivery system, in practice.

These are not experiments. Each technique runs daily in our own production platforms before it is applied to client work.

📐

Spec-driven development

Requirements become executable specifications before implementation starts. Agents build against the spec; acceptance is objective, not opinion-based.

🧑‍⚖️

Multi-agent code review

Every change is reviewed by independent agents tuned for correctness, security and simplification, then gated by a senior engineer. Nothing merges on trust.

🛡️

Automated security analysis

Static analysis, dependency auditing and adversarial security review run on every commit. Built by the same team that delivers penetration testing to banks.

♻️

Agentic legacy refactoring

Agents map, test-harness and refactor legacy codebases at a scale humans can't sustain, behaviour preserved, cloud bills reduced.

🧪

Test-first agent pipelines

Agents write the failing test before the fix and verify behaviour end-to-end in real environments, not just unit-test theatre.

🎯

Senior human direction

Architecture, trade-offs and sign-off stay with named senior engineers. Agents multiply their output; they never replace their judgement.

Stack

Native in the stacks enterprises actually run.

.NET

Enterprise backends, APIs and financial systems on modern .NET, cloud-native or on-premise.

React

Fast, accessible web applications and portals with clean, maintainable component architecture.

React Native

One codebase, native-quality iOS and Android apps, including NFC, biometrics and payments.

Java

High-throughput backend services and integrations for banking and telecom-grade workloads.

Plus the rest of the toolboxNode.js, Python, cloud infrastructure on AWS, Azure and Google Cloud.
Node.jsPythonAWSAzureGCP

Case study

WeVerify: a regulated trust platform, built and run agentically.

The strongest evidence for agentic delivery is that we bet our own product on it. WeVerify is a regulated European digital-trust platform, eIDAS 2.0 qualified, and every release is produced by the delivery system described on this page.

🏛️
Regulated, not a toy
Identity verification, qualified biometric signatures and e-seals under eIDAS 2.0, in production with governments, banks and telecom operators.
🧩
14 products, one platform
KYC, KYB, AML screening, TIN verification, age verification, secure video, e-signatures and more, shipped and maintained in parallel by agentic teams.
📉
A fraction of the usual team size
The platform is built and operated by a team many times smaller than the industry standard for this scope, that difference is exactly the cost advantage we pass to clients.

What ran agentically

  • Backend services in .NET and Java, mobile apps in React Native
  • Multi-agent code review on every merge to production
  • Automated security analysis and penetration-test preparation
  • Compliance documentation and audit evidence generation
  • Cloud infrastructure engineering and cost optimisation

Questions

The questions every CTO asks us.

Is AI-generated code safe to run in production?+
Raw AI-generated code is not, which is exactly why our system exists. Every change passes independent multi-agent review, automated security analysis and senior engineer sign-off before it merges. The quality gate is stricter than most human-only teams apply, and it runs on every single commit, not just before releases.
Who owns the code and the IP?+
You do, fully. All code, specifications, tests and documentation are delivered to your repositories under your ownership. We keep no lock-in: any competent team, human or agentic, can continue the work.
How is my data and confidential material handled?+
Engagements run under NDA in isolated environments. We are a security company first: the same team delivers penetration testing and incident response to the Dutch financial sector, and we apply that standard to our own delivery pipeline.
How do you price?+
Fixed price per specified scope, quoted after a free architecture session. Because agents make delivery effort predictable, we can commit to outcomes instead of billing hours, and the quote is typically a fraction of a traditional agency's for the same scope.

See the numbers for your roadmap.

Bring your hardest project. We'll come back with a fixed price and a timeline you won't believe until the first weekly demo.

✉info@nextarp.com 📞+31 10 257 99 99