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Software Engineering

Web applications, APIs, integrations, and custom systems on demand.

Software engineering for web applications, APIs, integrations, and corporate systems — with architecture, quality, and continuous evolution.

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10+ years on real projects
API-first robust integrations
SLA clear scoped delivery

What you get with Deuxys

Technical capacity to build, sustain, and evolve software that supports the business — without growing internal headcount.

  • Custom web applications and systems
  • Documented REST and GraphQL APIs
  • ERP, CRM, and third-party integrations
  • Scalable architecture and maintainable code
  • Maintenance, observability, and roadmap evolution

Challenges we solve

When the product must grow without accumulating technical debt or blocking operations.

  1. Backlog that never shrinks

    We take on execution with clear prioritization and incremental delivery.

  2. Fragile integrations

    Stable APIs, webhooks, and middleware between systems.

  3. Legacy that is hard to evolve

    Risk- and value-driven refactoring, not theatrical rewrites.

  4. No technical ownership

    End-to-end accountability: architecture, code, and production.

  5. Unpredictable timelines

    Milestones, communication, and delivery aligned to your workflow.

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How we deliver this service

Structured capabilities and predictable execution — as an extension of your team.

Web applications & platforms

Corporate systems, portals, restricted areas, and custom digital products.

  • Discovery and architecture
  • Full-stack development
  • Auth, permissions, workflows
  • Testing and automated deploy
  • Support and evolution

APIs & integrations

Connect products, partners, and operations with clear contracts and monitoring.

  • REST/GraphQL API design
  • Webhooks and queues
  • Data synchronization
  • Documentation and versioning
  • Integration observability

Evolution & maintenance

Continuous maintenance, performance, and roadmap without surprises.

  • Fixes and improvements
  • Dependency upgrades
  • Performance optimization
  • Security reviews
  • Release planning

How we work

Every engagement aligns with your process: clear assessment, scoped delivery, and accountable handoff.

  1. Scenario discovery

    Stack, goals, constraints, and success criteria.

  2. Architecture & scope

    Technical proposal, milestones, and clear boundaries.

  3. Iterative development

    Sprints with demonstrable delivery in your environment.

  4. Integration & QA

    Tests, code review, and critical flow validation.

  5. Deploy & production

    Pipelines, environments, and go-live checklist.

  6. Handoff & evolution

    Documentation and operational continuity.

Related expertise

DevOps & Infrastructure AI Engineering E-commerce Engineering

Let's understand your operation

Tell us about your scenario. We assess scope, challenges, and the best way to integrate Deuxys into your workflow.