IT staff augmentation · For US teams

Your engineering team, extended.

CrossX places experienced software engineers inside your team. They join your standups, work in your repos and ship in your sprints, with CrossX behind every placement.

  1. Experienced engineers

    Seasoned engineers who read a new codebase quickly and contribute from the first sprint.

  2. Embedded in your workflow

    Your tools, your rituals, your code review. They work the way your team works.

  3. Flexible team size

    Start with one engineer and grow to a full squad as your roadmap expands.

Skills our engineers bring

  • LLM integration
  • JavaScript & TypeScript
  • AI agents & workflows
  • Python
  • RAG & vector search
  • JVM (Java, Kotlin)
  • .NET & C#
  • Prompt engineering & evaluation
  • Go & Rust
  • Modern web frontends
  • Model fine-tuning
  • Backend & APIs
  • MLOps & model serving
  • iOS & Android
  • Computer vision & NLP
  • Cloud platforms
  • AI guardrails & safety
  • Kubernetes & containers
  • AI-assisted development
  • Infrastructure as code
  • Data engineering
  • Databases & SQL
  • CI/CD pipelines
  • Test automation

How staff augmentation works

Scope. Match. Meet. Onboard. Deliver. Grow.

Six clear steps take you from a first conversation to engineers shipping in your sprints, with you choosing every person who joins.

  1. Scope

    Define the role

    We agree a role brief with you, covering skills, stack, hours and team fit.

  2. Match

    Shortlist engineers

    We select engineers whose experience fits the brief and share their profiles.

  3. Meet

    Interview and choose

    You interview the candidates and choose who joins your team.

  4. Onboard

    Join your workflow

    Your engineer joins your tools, channels and ceremonies with a first-sprint plan.

  5. Deliver

    Ship in your sprints

    Engineers take direction from your leads and ship in your sprints.

  6. Grow

    Scale with your roadmap

    Add engineers, change skill sets or scale down as your plans evolve.

See the full process

Roles we place

The engineers your roadmap is waiting for.

Start with one specialist or combine roles into a squad. Every placement works inside your process and reports to your leads.

Ways to work with us

Choose the shape that fits your team.

Whether you need one engineer inside your team, a dedicated squad or a whole project delivered, you can move between models as your needs change.

Team extension

Individual engineers join your team and work inside your process.

Day-to-day direction: Mostly you

Who directs day to day
Your leads. Our engineers join your standups, boards and code review.
Best when
You have a working team and process and want more experienced hands, fast.
Getting started
The quickest start, because engineers slot into your existing setup.

Dedicated squad

A stable, cross-functional CrossX squad focused on your product.

Day-to-day direction: Shared

Who directs day to day
A CrossX lead runs the squad day to day, working closely with your product owner.
Best when
You want a whole capability, such as a platform or AI team, ready to go.
Getting started
A short setup period to form the squad and agree ways of working.

Project delivery

A CrossX team owns a defined outcome from discovery to launch.

Day-to-day direction: Mostly CrossX

Who directs day to day
We do. You see regular demos and make the key decisions.
Best when
The goal is clear, such as a new product or a migration, and you want one accountable team.
Getting started
Starts with discovery, so the build begins with a shared plan.

Compare the models in detail

Why teams choose CrossX

Commitments we keep on every placement.

  1. We work your hours

    Engineers keep working days that overlap with US time zones and join your meetings live.

  2. We flag risks early

    Blockers, scope questions and fit concerns reach you the moment we see them, with options attached.

  3. We keep teams stable

    Engineers stay with your product, building context release after release.

  4. We protect your work

    NDAs, access you control and clean offboarding come standard with every placement.

  5. We stay close

    A named CrossX lead checks in with you and your engineers and acts on what they hear.

  6. We leave knowledge behind

    Engineers document, review and pair, so capability grows inside your team.

Start here

Where is your team today?

Pick the closest fit and we'll suggest a first step you can send to us in one click.

Pick the closest match and email us. We reply with a suggested first step.

Opens a pre-filled email to [email protected] in your own mail app. Your message sends only when you press send there.

Engineering services

Need a product built end to end?

CrossX also delivers custom software as a project. A CrossX team owns the outcome from discovery to launch: web and mobile applications, APIs and integrations, cloud and modernization, and AI features.

Explore engineering services
  • Web & mobile apps
  • APIs & integrations
  • AI/ML engineering
  • Modernization & cloud
  • QA & DevOps
  • Technical leadership

Questions, answered

What teams ask before they start.

Short answers to the questions we hear most. The full FAQ covers vetting, billing, security and continuity.

Read the full FAQ
How quickly can an engineer start?

Quickly. Once we agree a role brief, we introduce matched engineers for you to interview, and onboarding begins as soon as you choose. The team builder on our staff augmentation page sketches a typical path from intro call to first sprint.

What roles and experience levels do you provide?

Backend, frontend, full-stack, mobile, DevOps and cloud, QA automation, data and AI/ML engineers, plus tech leads and architects, from mid-level through principal. Tell us the mix you need and we shape the team around it.

Can we interview candidates before we commit?

Yes. You meet every engineer we propose, and you choose who joins your team.

Can we scale the team up or down?

Yes. Add engineers as your roadmap grows, change skill sets as priorities shift, and scale down when your own hires arrive. We agree notice periods up front so every change is planned.

Who manages the engineers day to day?

Your team leads do. Engineers take direction from your leads and follow your process. A CrossX engagement lead checks in with you and your engineers regularly and handles everything around the placement.

How do we begin?

Send us a short brief through the contact page or the team builder. We reply personally and set up a call to understand your roles, stack and timing.

Ready when you are

Ready to add engineers to your team?

Tell us the roles, the stack and the timing. We reply personally and set up a short call to plan your first placement.