Building systems
that endure as you scale

Custom software,endless potential

ARG builds digital products designed to grow with your business. From early MVPs to systems that need to scale, we work as a long-term engineering partner, not a handoff vendor.

Build with ARG
Start a project

Solid architecture

Built to scale - structural decisions that hold as load and complexity grow.

Clean code

Maintainable by design, so the next change is never the expensive one.

True partnership

From first sprint to future iterations - accountable in production, not a handoff.

Dedicated TeamsStaff AugmentationTechnical ConsultingMVP DeliveryAI AutomationSoftware ArchitectureCloud PlatformsProduct Engineering

Dedicated TeamsStaff AugmentationTechnical ConsultingMVP DeliveryAI AutomationSoftware ArchitectureCloud PlatformsProduct Engineering

01

Dedicated Product Teams

Product Engineering
Long-Term Delivery

A focused ARG team working as your software delivery partner. We bring senior engineers, product thinking, architecture discipline, and delivery ownership to build, ship, and evolve products over time.

02

Staff Augmentation

Senior Engineers
Team Extension

Add experienced engineers to your existing team without lowering the bar. We help companies increase delivery capacity, fill technical gaps, and move faster while keeping quality, communication, and ownership high.

03

Technical Consulting

Architecture
Audits
Strategy

Bring us in when the technical decisions matter. We help with architecture reviews, scalability planning, modernization, delivery strategy, AI adoption, and complex product or platform decisions.

04

MVP + Product Delivery

MVP
Launch
Iteration

We take ideas from concept to launch with the right balance of speed and engineering judgment. The result is not a throwaway prototype, but a product foundation ready to learn, adapt, and grow.

05

AI + Automation

AI
Integrations
Workflows

We embrace AI where it creates real leverage. From intelligent product features to system integrations, internal automation, and developer workflows, we use AI and automation to reduce friction, connect tools, and help teams move faster.

06

Cloud + Platform Engineering

Cloud
DevOps
Reliability

We build the technical foundation behind reliable software: cloud infrastructure, CI/CD, observability, environments, deployments, and platform practices that help teams ship with confidence.

Proof in production, not promises.

This is a public selection, not the full archive. Many engagements stay private by design; these are the projects we can discuss within client privacy and NDA agreements.

Use Cases
Solution

Helped redesign Mojaloop vNext as a ground-up rebuild of the open-source payment switch

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Tech Stack:
Express, MongoDB, Kafka, Angular, Docker, Jest, Node
Problem

People's Clearinghouse is building a community-owned payments network that can move from pilots and summit demonstrations into production use with real banks, rural merchants, and social-sector financial institutions.

Solution

An ongoing Mojaloop vNext-based clearinghouse, mobile app, and merchant payment flow validated through a live Interledger Summit demo and national-scale switching performance tests.

Extended the Mojaloop vNext foundation into PCH-specific switch and participant flows for community banks, savings coops, and regulated payment institutions

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Tech Stack:
Mojaloop vNext, Open Payments, Interledger Protocol, Event-Driven Architecture, Domain-Driven Design, Distributed Systems, Payment Switching, Ledger Orchestration, QR Payments, Merchant Payments, Mobile App, Core Banking

People's Clearinghouse

I want to know more

Fintech & Financial Inclusion
Solution

Redesigned the backend architecture so the platform could scale beyond its original Node and WordPress-based foundation

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Tech Stack:
TypeORM, Express, React, Docker, Jest, MySQL, Node
Solution

Migrated the frontend to Angular and implemented the redesigned product interface

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Tech Stack:
Knex, Tone.js, Tailwind, Koa, Angular, Docker, Jest, Node
Solution

Implemented new user-facing product features across the TV Cine web experience

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Tech Stack:
Vue.js, MongoDB, Entity Framework, .NET Core, Nuxt
Solution

Built a backend royalty engine to replace Excel-based processing

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Tech Stack:
.NET Core, Entity Framework, Octopus Deploy, Docker, React, Hangfire, PostgreSQL, MediatR
Solution

Rebuilt the backend foundation around functional trading flows and secure user authentication

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Tech Stack:
MikroORM, Next.js, Kafka, PostgreSQL, Docker, Nx, Webpack, NestJS

It was a pleasure to work with! Good communication, solid work, and helped us deliver our new version of the product in a timely fashion.

Marc-André Mignault, Project Manager at Skytracks

ARG Software were great to work with from the first day. We needed a MVP for our tourism management company and they provided all the technical solutions we required, optimizing and improving our day-to-day operations. I definitely recommend ARG Software's team for their effort and great work. Thank you so much!

Andre Mendo, CEO at Hostelier

Jose and Rui delivered good work and I enjoyed working with them. They transformed a legacy API from PHP to TypeScript, where their architectural skills in building an object-oriented backend were really handy. They were quick in extending their knowledge and competence in TypeScript-based projects to successfully complete the project. It is likely that we will hire them in the future for projects.

Hendrik, CTO at Dokutar

ARG did great! Was awesome to work with and always quick to respond. Great attitude despite project requirements changing. Also helped out in a few tight spots with last-minute requests — highly recommend working with ARG!

Austin Klise, CEO at Klise Consulting
Working With Us

Senior Ownership

ARG works best when the problem is complex, the stakes are real, and the system has to last. We keep the team small, senior, and close to the work: understand the risk, design the path, ship the code, and stay accountable when it reaches production.

No vendor theatre, no endless status loops. You get direct technical conversations, clear trade-offs, fast answers, and the discipline to say no when a shortcut will cost you later.

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Deploys into production, usually not on Friday

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Finance transactions per second

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Years of senior engineering experience

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Impacted countries

Meet Our Team

Built by Engineers

ARG is led by senior engineers who stay close to the architecture, code, and production reality. You do not get layers of account management. You work with the people responsible for the technical decisions.

JoseAntunes - ARG

Jose Antunes

Co-founder, Software Engineer
RuiRocha - ARG

Rui Rocha

Co-founder, Software Engineer

Engineering Field Notes

Blog

Adding Vector Search to TypeScript Clean Architecture (Without a Cloud Bill or a RAM Crisis)

At some point, your product manager asks for a feature that sounds deceptively

The AI Big Lie: You Don’t Need 32 GB of RAM for Vector Search Anymore

The enterprise AI landscape is currently misleading developers about hardware requirements. If you want to build Retrieval-Augmented Generation (RAG) or semantic search into your applications, the industry-standard

The Hidden Tax of “Clean” Code: Knowing Which Abstractions to Keep (and Which to Burn)

There is a growing movement in the .NET community right now, and it is fueled by pure exhaustion. Developers are tired. They are tired of opening a pull request to add a single database column, only to realize they have

Stop Using “any”: A Practical Migration Plan for Legacy TypeScript Apps

Legacy TypeScript codebases don't become unsafe suddenly. They start to become unsafe one any at a

The Most Important Decision in Web3 Isn’t What You Put On-Chain — It’s What You Don’t

Every Web3 product lives at the boundary between speed and trust. Draw it wrong, and everything else becomes a

API Versioning in .NET 10 Minimal APIs: A Practical, Production-Ready Guide

API versioning allows systems to evolve from v1 to v2 without breaking existing

Stop Trusting Your Message Broker: Why Idempotency is the Only Real Guarantee

If you have ever debugged why a customer got charged twice, or why an order shipped before payment was captured, the lesson is familiar: message brokers do not give you the guarantees you think they do. Ordering is the

What we share outside the site

Social

Common questions,
honest answers.

FAQ

Our typical rate is around 70 EUR/USD per hour, but we do not force every project into the same pricing model.

For ongoing or evolving work, hourly or monthly collaboration can make sense. For smaller, well-defined projects, we can agree on an initial fee to start and a final payment on delivery. For larger scopes, payments can be split by milestones or deliverables.

Each case is reviewed individually. Before estimating, we usually define:

  • The core workflows
  • The technical risks
  • The architecture direction
  • A realistic delivery range

Scope changes must be communicated clearly. If a change affects the current direction, workload, timeline, or expected value, we review it together before continuing.

Most focused MVPs take 8 to 14 weeks, depending on:

  • Feature complexity
  • Product clarity
  • Integration depth
  • Security or compliance needs

We move quickly, but we do not build throwaway foundations. The goal is a product you can learn from and keep evolving.

Yes. ARG works remotely with teams across regions. What matters is not location, but whether the communication rhythm supports serious engineering work.

  • Clear written context
  • Direct technical conversations
  • Predictable async updates
  • Enough overlap for decisions

If the problem is clear and the ownership is real, distance is not the blocker.

Both. We support:

  • Startups building launch-ready products
  • Companies modernizing fragile systems
  • Teams scaling performance or reliability
  • Organizations building internal platforms

The common thread is technical ownership, not company size.

We choose technology for maintainability, team fit, and production requirements. The stack is a tool, not the strategy.

  • Web: React, Next.js, TypeScript
  • Backend: Node.js, .NET, Java
  • Cloud: AWS, Azure, GCP
  • Mobile: React Native and Flutter
  • Databases: PostgreSQL, MongoDB

The important part is choosing a system your team can operate after launch.

Quality starts before implementation. We make the important decisions explicit:

  • Architecture boundaries
  • Testing strategy
  • Code reviews
  • CI/CD and release flow
  • Observability and recovery paths
  • Security and data constraints

We build software meant to evolve, not be rewritten after year one.

Yes. Some of our most valuable work happens after launch:

  • Performance optimization
  • Reliability improvements
  • Cloud and platform work
  • Feature evolution
  • Senior team extension

We prefer long-term ownership over one-off handoffs.

Yes. Depending on the need, we can provide:

  • A focused product team
  • Senior engineers embedded with your team
  • Architecture or consulting support

We adapt the model to the work, but keep the team senior and accountable.

Our process is intentionally simple:

  • Understand the context
  • Map the risks
  • Design the architecture
  • Build in short cycles
  • Launch and stay close

You get visibility without process theatre.

Send us the context first. We look for the shape of the problem:

  • Your product goals
  • Technical constraints
  • Current risks
  • Timeline expectations

If there is a fit, the first conversation is technical. If there is not, we will say that clearly.

Hard problem?

Let's solve it