Service 02 · Engineering

Custom software development, engineered to scale

Precision-built systems that scale. We architect, build and maintain the web platforms, mobile apps, APIs and cloud infrastructure that organisations can’t afford to see fail, and modernise legacy systems without stopping the business.

Plan your build See what’s included
  • Since 2014
  • Reply within 1 business day
  • NDA on request
  • English · Italiano · Português

In short

What is Onesight’s software engineering service?

Onesight Global is a custom software development company. We design, build and maintain web platforms, mobile apps, APIs and cloud infrastructure for organisations that can’t afford downtime or drift, and we modernise legacy systems step by step. We work in Next.js, React, Angular, Node.js, Symfony, Laravel, Flutter and React Native, as a turnkey project, a dedicated team or through staff augmentation.

Focus
Web, mobile, APIs, cloud and DevOps
Since
2014
Engagement
Turnkey project, dedicated team or staff augmentation
Languages
English, Italian, Portuguese
Markets
Italy, the EU and Brazil
Response
Within one business day
Confidentiality
NDA on request

Sound familiar?

Software that holds you back

  • A platform that buckles under growth

    Slow pages, timeouts at peak and a database that is always the bottleneck, just when the business takes off.

  • Legacy code nobody wants to touch

    Every release is a risk, the original developers are gone and the documentation never existed.

  • Projects that drift

    Deadlines move, scope creeps and nobody can say what “done” looks like or what it will cost.

  • Compliance as an afterthought

    Security reviews, GDPR requests and accessibility rules discovered after launch, when fixing them costs the most.

What we do

Software engineering services

Load-bearing software and infrastructure, from the first blueprint to years of evolution in production.

  • Web · Platforms

    Custom Web Applications & Enterprise Platforms

    Portals, SaaS products, marketplaces and internal tools built for heavy traffic and long lives, with a clean architecture and test coverage that keep change cheap.

    • SaaS and multi-tenant platforms
    • B2B portals and marketplaces
    • Internal tools and back offices
    • Accessibility (WCAG) and performance budgets
  • Mobile

    Mobile App Development

    iOS and Android apps from one codebase with Flutter and React Native, wired to your backend, with offline support, push notifications and store releases handled.

    • Cross-platform apps (Flutter, React Native)
    • Offline-first and sync
    • Push notifications and deep links
    • App Store and Google Play releases
  • Backend · APIs

    Backend, APIs & Integrations

    Robust APIs and services in Node.js and PHP (Symfony, Laravel) that connect your ERP, CRM, payment providers and third-party services, and keep data consistent between them.

    • REST and GraphQL APIs
    • Microservices and event-driven systems
    • ERP, CRM and payment integrations
    • Data migrations
  • Frameworks

    Framework-Based Consulting

    Deep expertise in Next.js, React, Angular, Node.js, Symfony, Laravel, Flutter and React Native: architecture reviews, performance tuning and upgrade paths for faster delivery and fewer surprises at launch.

    • Architecture and code reviews
    • Performance and Core Web Vitals tuning
    • Major version upgrades
    • Coaching for in-house teams
  • Modernisation · Cloud

    Legacy Modernisation & Cloud Migration

    We move monoliths to modern stacks step by step, migrate to AWS, Google Cloud or Azure with infrastructure as code, and keep the business running during the switch.

    • Code audits and tech-debt maps
    • Incremental rewrites (strangler pattern)
    • Cloud migration and cost optimisation
    • CI/CD, DevOps and observability
  • Blueprint · Governance

    Software Blueprinting & IT Governance

    Replicable delivery frameworks with phases, roles, resources and success metrics defined from day one, and IT governance that aligns every investment with business goals, as we did with WBlow, our EU whistleblowing platform.

    • Delivery blueprints and estimates
    • Architecture decision records
    • IT governance and compliance
    • Security and privacy by design
Plan your build See WBlow, the compliance platform we built and run

How we work

How we build software you can rely on

Predictable delivery: a blueprint before code, working software every sprint, and releases you can roll back.

  1. Blueprint

    Discovery workshops, architecture and a delivery blueprint: phases, roles, risks, estimates and the metrics that define done.

  2. Design

    UX flows, prototypes and an API contract agreed before code, so front end and back end move in parallel.

  3. Build

    Short sprints, code review on every change, automated tests and a demo you can click at the end of each sprint.

  4. Release

    CI/CD pipelines, a staging environment that mirrors production, and releases you can roll back in minutes.

  5. Evolve

    Monitoring, security patches, dependency upgrades and a roadmap for what comes next.

Use cases

Built for the companies that run on it

Where our software engineering makes the biggest difference.

  • Startups and scale-ups

    From MVP to a platform that handles growth, without a rewrite halfway through.

  • Enterprises

    Portals, integrations and modernisation of core systems, delivered alongside in-house IT.

  • E-commerce and retail

    Fast storefronts, custom checkouts and integrations with ERP, stock and logistics.

  • Finance and insurance

    Secure customer portals, back-office automation and audited data flows.

  • Regulated industries

    Audit trails, access control and data protection built in from the first sprint.

  • Software companies

    Extra senior capacity to ship the roadmap, with architecture that keeps it maintainable.

What you get

  • Architecture and delivery blueprint
  • Production-grade codebase with automated tests
  • CI/CD pipelines and infrastructure as code
  • Technical and API documentation
  • Monitoring, alerting and runbooks
  • Maintenance and evolution plan

Technology

Technologies we build with

Front end

  • Next.js
  • React
  • Angular
  • TypeScript

Mobile

  • Flutter
  • React Native

Back end

  • Node.js
  • PHP
  • Symfony
  • Laravel
  • PostgreSQL
  • MySQL
  • MongoDB
  • Redis

Cloud and DevOps

  • AWS
  • Google Cloud
  • Azure
  • Docker
  • Kubernetes
  • Terraform
  • GitHub Actions

Why Onesight

One accountable partner, since 2014

  • One accountable partner

    Strategy, engineering, security, automation and design under one roof since 2014, so nothing falls between vendors and one team answers for the result.

  • We run what we build

    Adam, our autonomous sales agent, and WBlow, our EU whistleblowing platform, are our own products in production. Client work gets the same standard.

  • Engineering discipline, everywhere

    Code review, automated tests, security and performance budgets are part of every engagement, not an upsell. What we hand over is documented and maintainable.

  • European contracts, three languages

    EU clients contract with GoLittle (VAT IT13053300961) under Italian law. Our teams work in English, Italian and Portuguese, across Italy, the EU and Brazil.

FAQ

Engineering: questions, answered

How much does custom software development cost?

It depends on scope, integrations and the team you need. We start with a blueprint that fixes scope, phases and a cost estimate; you then choose a turnkey project, a dedicated team billed monthly, or individual engineers through staff augmentation.

Which technologies and frameworks do you work with?

Next.js, React and Angular on the front end, Node.js, Symfony and Laravel on the back end, Flutter and React Native for mobile, deployed on AWS, Google Cloud or Azure with Docker, Kubernetes and Terraform.

Can you take over an existing codebase?

Yes. We start with a code and architecture audit, document what we find, stabilise the riskiest parts first and then improve the system incrementally, without a big-bang rewrite.

Do you build mobile apps as well as web platforms?

Yes. We build iOS and Android apps with Flutter and React Native that share a backend and APIs with your web platform, and we handle the App Store and Google Play releases.

How do you keep projects on time and on budget?

With software blueprinting: phases, roles, resources and success metrics are defined before development starts, progress is demoed every sprint, and every scope change is estimated before it is accepted.

Do you maintain software after launch?

Yes. We offer ongoing maintenance and evolution: monitoring, security updates, dependency upgrades and new features, delivered by a team that already knows your system.

Can you work with our in-house developers?

Yes. We can lead the project, join your team through staff augmentation, or coach your developers on architecture and frameworks.

Do you work with companies outside Italy?

Yes. We work with organisations across Italy, the rest of Europe and Brazil, in English, Italian and Portuguese.

Let’s engineer what you’ll rely on

Tell us what you’re building or what needs fixing. We reply within one business day with a first view on scope and approach.

Plan your build

Or write to hello@onesight.global · call +39 351 9073507