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HelixNebula
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We build websitesthat grow your business.

We are a software engineering studio. We turn your processes and ideas into fast, secure, tailor-made digital products, from the first line of code to launch and beyond.

Tell us about your projectExplore services
  • Reply within 24 h
  • No-strings quote
  • NDA on request

Companies that already trust us

Services

All the software your business needs, under one roof.

From a website that converts to the system that runs your whole operation. We design, build and maintain every piece.

Websites & ecommerce

Corporate sites, landing pages and lightning-fast online stores, optimized for SEO and built to turn visitors into customers.

  • Shopify
  • Headless
  • SEO

Mobile apps

Native or cross-platform iOS and Android apps with fluid experiences your users will want to open every day.

  • iOS
  • Android
  • React Native

Custom ERP & CRM

Internal tools that fit how you work, not the other way around: inventory, invoicing, sales and customers in one place.

  • Inventory
  • Invoicing
  • Sales

Artificial intelligence

Assistants, agents and models connected to your data that answer, classify, summarize and decide for you.

  • Agents
  • RAG
  • LLMs

Automations

We connect your tools and remove repetitive work with integrations, APIs and workflows that run on their own.

  • Integrations
  • APIs
  • Workflows

Custom software

SaaS platforms, customer portals and marketplaces. If you can imagine it, we can build it.

  • SaaS
  • Portals
  • Marketplaces

Work

Real software, in production, with real users.

SaaS platforms, fintech, Web3, internal tools and websites we built end to end. These are some of the projects we're proudest of.

We don't sell templates or hours. We build software that fits exactly how your business works, and we keep evolving it with you.

Process

From idea to launch, with no surprises.

A proven method with weekly deliveries and full visibility. You always know what we're doing and why.

  1. 2–5 days

    Discovery

    We learn your business, processes and goals. Together we define scope, priorities and a fixed quote.

    • Workshops with your team
    • Process mapping
    • Fixed quote
  2. 1–2 weeks

    Design

    Interactive prototypes and interfaces you validate before a single line of code is written.

    • Clickable prototype
    • Design system
    • User validation
  3. Weekly sprints

    Development

    Short sprints with a demo every week. You see progress in real time and give feedback as we go.

    • Weekly demos
    • Automated tests
    • Staging environments
  4. Ongoing

    Launch & growth

    We ship, measure and keep improving with support, maintenance and new features.

    • Zero-downtime deploys
    • 24/7 monitoring
    • Continuous improvement

Why HelixNebula

A senior team that treats your project like their own.

No middlemen and no layers of management. You work side by side with the people who design and code your product.

Senior team, direct contact
You talk to the people building it. No salespeople, no broken telephone.
Fixed pricing
From day one you know what you pay and what you get, no fine print.
You own the code
100% of the intellectual property, documented code and no lock-in.
Performance & security
Best practices, tests and security reviews from day one.
Design that converts
Polished interfaces your team and your customers enjoy using.
Long-term support
Maintenance, monitoring and continuous evolution of your product.
Projects delivered
0+
Years building software
0
Returning clients
0%
Response time
<0h

How we work

Three ways to work together, one standard.

Pick the model that fits where you are. Every option includes a senior team, weekly demos and code that you own.

  1. Fixed-scope project

    For websites, MVPs and products with a clear scope.

    • Fixed scope and price
    • End-to-end design and development
    • Weekly demos
    • Launch and 30 days of support

  2. Dedicated team

    For growing products that need to ship every week.

    • Senior team assigned to your product
    • Shared roadmap and priorities
    • Weekly sprints with deliveries
    • Scale the team when you need to

  3. Maintenance & growth

    To keep your software secure, fast and up to date.

    • Monitoring and backups
    • Security updates
    • Hour bank for improvements
    • Priority response

Not sure which one fits? We'll work it out together on a first call and propose the right model.

Request a proposal

Comparison

The best of an agency and a freelancer, without the downsides.

HelixNebulaTraditional agencyFreelancer
You talk directly to the people building itYesNoYes
Senior design and engineering teamYesYesNo
Fixed quote with no surprisesYesNoNo
Demos and deliveries every weekYesNoNo
Web, apps, backend and AI in one teamYesYesNo
You own the code and the IPYesNoYes
Long-term support and evolutionYesYesNo

Technologies we use every day

  • TypeScript
  • React
  • Next.js
  • Astro
  • Node.js
  • Bun
  • Python
  • Swift
  • Kotlin
  • Expo
  • Flutter
  • PostgreSQL
  • Convex
  • Supabase
  • Redis
  • Docker
  • Cloudflare
  • Vercel
  • Stripe
  • Shopify
  • Anthropic
  • n8n
  • Solidity
  • Ethereum

Clients

Companies already moving faster.

  • We went from five tools to one. Scheduling, payments and reminders run on their own, and the assistant saves us hours every week.

    Dani Soler

    Head of Product, CliniQ

  • Connecting third-party brokers in real time was the hardest part of the project, and it runs like clockwork. We scaled without touching the architecture.

    Álex Ruiz

    COO, FTT Funded

  • We needed people who understood both product and smart contracts. They audited our escrow and helped us launch with complete peace of mind.

    Ari Vidal

    CEO, Vailox

  • Clock-ins and patrol rounds are no longer up for debate: they're in the app, with time and location. Our clients notice, and we sleep better.

    Noa Martí

    Head of Operations, Grupo Anya

  • We now sell classes and products to women across Spain and Latin America without fighting technology. Everything lives in one place and we edit it ourselves.

    Cris Navarro

    Coordinator, Neus Gramage

  • Building an on-chain financial product is daunting. Their rigour on the contract and the user experience gave us the confidence to launch.

    Sasha Ortega

    Product, Pacta

  • We wanted a website as serious as our work. Enquiries from the site picked up from the very first month.

    Robin Sáez

    Managing Partner, UMR & Partners

FAQ

Frequently asked questions.

Can't find your answer? Write to us and we'll reply within 24 hours.

  • It depends on the scope. After a 30-minute intro call we send you a detailed fixed quote within 48 hours, no strings attached.

Contact

Let's talk about your project.

Tell us what you need and we'll get back to you within 24 hours with next steps.

  • Free 30-minute intro call
  • Fixed quote within 48 hours
  • We sign an NDA if you need one

Prefer email?

contact@helixnebula.tech
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