Team Training

Build stronger engineering teams.

We run targeted, hands-on training around your codebase, engineering goals, and delivery constraints. Programs cover React and React Native fundamentals, architecture, performance, production patterns, and AI-assisted workflows.

Book consultationExplore services

Trusted by 100+ Enterprise clients

Why train with Callstack

Learn from engineers who solve these problems in production.

Our trainers are React and React Native Core Contributors and senior engineers working on demanding production codebases. They teach the fundamentals, architecture, performance, and AI-assisted workflows your team needs, using your stack and delivery constraints.

  • Train on what matters now.

    Each program is shaped around your team’s experience, stack, and roadmap.

  • Work through real engineering problems.

    Hands-on exercises connect the training to the code and delivery challenges your engineers face.

  • Build judgment, not tool dependence.

    Teams learn the principles behind architecture, performance, review, and effective AI-assisted delivery.

  • Keep the knowledge in the team.

    Reusable materials, follow-up sessions, and internal trainers help new practices stick.

Services

Choose the training your engineering team needs.

  • Use Cases

  • AI Developer Training

    Hands-on training that moves engineers from ad hoc experimentation to deliberate, effective AI use.

  • React Native Trainings

    Train your team on React Native tooling, architecture, AI-native workflows, and production patterns with Core Contributors.

Team Training

Level up your engineering team.

Bring us your engineers and the problems they need to solve. We will design a hands-on program around React, React Native, architecture, performance, and AI-assisted delivery.

Train my team

How we work together

Training shaped around your team, codebase, and roadmap.

  • Extend your team

    Our senior engineers join your team to ship features, guide technical decisions, and strengthen delivery.

    • Your roadmap and workflow
    • Expertise shared as we work
    • Flexible timezone coverage

  • Deliver a project

    We take agreed work from technical planning to release, with clear responsibilities and progress you can see.

    • 3 Callstack engineers ship like 6
    • Impact visible before sprint two
    • End-to-end delivery

  • Solve specific challenge

    We address a performance, migration, or infrastructure challenge, or run training around your team’s needs.

    • Focused reviews or implementation
    • Knowledge your team keeps
    • Outcomes guaranteed with contract
Industry runs on our tooling
50M+
OSS downloads / month
React Foundation Founding Member
300+ commits to React Native
2.8x
Knowledge increase over 8 weeks
100+
Enterprise projects delivered
ISO 27001 certified
Agent Skills

Callstack’s engineering practices packaged as reusable instructions for coding agents.

The 1:1 sessions were nice. Good to have a dedicated time for questions.
John
HelloFresh

10 years of React Native → Now in your AI stack

Level up your engineering team.

Bring us your engineers and the problems they need to solve. We will design a hands-on program around React, React Native, architecture, performance, and AI-assisted delivery.

Train my team

Open Source

Build with our open-source tools.

We open-source the tools behind our delivery model.
Use them, fork them, or let us run them for you.

Check All ToolsExplore AI Infrastructure

React Native Testing Library

Simple and complete React Native testing utilities that encourage good testing practices

18.2M downloads/mo

Re.Pack

A webpack-based toolkit to build your React Native application with full support of webpack ecosystem

2.2M downloads/mo

React Native Builder Bob

Simple set of CLIs to scaffold and build React Native libraries for different targets

1.4M downloads/mo

Agent Skills

Callstack’s best practices on React Native performance optimization, upgrading, CI workflows, and brownfield migrations

1.7K stars

Skill Gym

Prove your agent skills work before you ship them

1.6K downloads/mo

Agent Device

CLI to control iOS and Android devices for AI agents

980.4K downloads/mo

React Native Evals

A benchmark suite for evaluating how coding models solve real React Native tasks

111 stars

Insights

Worth your time, by engineers.

Explore Insights
cover

Apr 28Article

React Native production lessons from React Universe Meetup x Zalando

React Native has already proven it can ship production apps. The harder question is how it performs in brownfield migrations, feed-heavy interfaces, native API integrations, and hardware-constrained environments. This article shares four practical lessons from React Universe Meetup x Zalando in Berlin.

cover

Aug 13Article

12 Rules and Approaches of Code Writing for Beginners

Writing clean, readable code is essential for developers at any level. This guide shares 12 practical rules to help you structure code logically, use consistent naming conventions, and make your projects easier to read, test, and maintain over time.

cover

Jul 2Article

Develop Your Team's Skills Through Remote React Native Training

Conducting effective remote training can be challenging, but it's possible with the right tools and approach. We share how we adapted our React Native training to deliver an interactive, engaging experience for developers—complete with live coding, breakout rooms, and real-time communication.

cover

Jun 25Article

The Team Growth Done Right

Callstack has grown to nearly 20 developers who tackle complex React and React Native projects. To support their growth, the company created the Special Forces program with four focus areas: Open Source Evangelists, Tech Wizards, Rockstar Speakers, and Trendsetters.