Hire Chrome Extension Developer

Hire Chrome extension developers who build for production.

Hire experienced developers to build, extend, integrate and maintain browser extensions around your workflows, users and existing business systems.

Real developers from our team, rated by clients

Extension experience

We have spent 15+ years building production software and browser extensions for companies that need custom workflows, integrations, ongoing maintenance and experienced engineering support.

15+

Years of software delivery experience

60+

Chrome extensions delivered

4.9/5

Client rating across 900+ reviews

AI-assisted delivery

How our Chrome extension developers use AI without outsourcing judgement

01 / Planning

Faster requirement analysis

We use AI-assisted analysis to organise requirements, identify repeated workflows and surface edge cases before development begins.

02 / Development

Quicker implementation cycles

AI-assisted coding helps our developers draft routine logic, tests and documentation faster while keeping review and architecture decisions with the engineering team.

03 / Quality

Broader test coverage

We use AI-assisted workflows to help generate test scenarios around user actions, permissions, data handling and integration failures.

04 / Maintenance

Faster issue investigation

When an extension needs support, AI-assisted analysis can help developers compare logs, trace recurring errors and narrow likely causes faster.

Need to know who your project requires?

Send us your extension requirements and current setup. We will recommend the team shape, engagement model and practical next steps for your build.

DISCUSS YOUR PROJECT

Ways to work

Choose how you want our Chrome extension developers engaged.

Hire one developer, build a dedicated extension team or agree a fixed scope. We structure the engagement around how defined the work is, how often requirements change and how closely you want our developers working with your team.

Hourly

Hire a Chrome extension developer for defined tasks, ongoing improvements or work where priorities and requirements can change frequently.

  • Maintenance and incremental improvements
  • Investigation and technical fixes
  • Changing or evolving requirements
  • Additional engineering capacity

Fixed price

Agree the scope and budget in advance when your extension requirements, deliverables and acceptance criteria are already clearly defined.

  • Clearly bounded development work
  • Defined feature requirements
  • Known delivery milestones
  • Stable project scope

What we build

Chrome extension developers for six core browser extension needs

Custom extension development

  • We build browser extensions around your business workflows, user roles, data requirements and day-to-day operational needs.

  • We extend existing extensions when you need additional functionality, revised workflows or improvements to an established product.

Business system integration

  • We connect extensions with your existing business applications so users can work with relevant data without repeated manual steps.

  • We build automated workflows that exchange information between the extension and the systems your teams already depend on.

Extension UI and UX

  • We design straightforward interfaces that reduce friction and keep important extension actions easy for users to find.

  • We create clear interaction patterns and visual feedback so users understand what happened after each action they take.

Performance optimisation

  • We review extension code and remove unnecessary processing that can slow down everyday browser tasks for your users.

  • We improve data handling and caching so frequently used information can be accessed without avoidable processing or delays.

Workflow extensions

  • We build lightweight extensions that bring frequently used business actions directly into the user's normal browser workflow.

  • We create configurable interfaces so different teams or user roles can work with settings suited to their responsibilities.

Support and maintenance

  • We maintain extension code as browser requirements, connected systems and your own product requirements change over time.

  • We apply security and compatibility updates so existing extension functionality continues to work as its environment changes.

How hiring works

Four steps to hire Chrome extension developers from us.

We start with the work you need completed, identify the skills and engagement structure required, then give you the opportunity to assess the developers before the engagement begins.

01

Book a consultation

  • Share the extension you want to build
  • Explain your existing systems and workflows
  • Discuss the likely development approach
02

Discuss project details

  • Confirm technical and business requirements
  • Choose the appropriate engagement model
  • Agree deliverables and key project risks
03

Interview developers

  • Review developers shortlisted for your requirements
  • Interview the candidates before making a decision
  • Use a technical exercise when useful
04

Hire and start

  • Review the commercial and contractual terms
  • Complete the required confidentiality documentation
  • Start onboarding with project and technical support

Extension work

Browser extensions
we have built

Browser extension · Productivity

AI-assisted email writing extension

We built a browser extension that helps users generate replies, summarise email content, translate text and adjust writing tone inside an existing email workflow. The project combined a compact browser interface with AI-assisted writing functions and support for both desktop and mobile use.

Browser extension · Travel

Faster flight research for agents

We built a browser extension for travel agents who research domestic and international flights throughout the day. The extension reduces repetitive searching and keeps useful flight-research actions closer to the agent's normal workflow, helping teams move through customer enquiries with fewer manual steps.

Browser extension · Email automation

Automated follow-up workflow extension

We developed an extension that automates follow-up sequences from within an existing email workflow. Users can configure message sequences, define triggers, monitor engagement and personalise outreach while managing supporting content through a separate dashboard connected to the extension's underlying business logic.

Client feedback

What our clients say

“We’ve worked with TBI
on web projects for years.
Creative professionals
and great at solving problems.”

ShantiCo-owner, 1/2 Price Movers

After launch

Extension maintenance is part of the engineering.

Browser extensions live inside an environment that continues to change after release.
Connected business systems evolve, security requirements move, and workflows that made sense at launch often need adjustment as more people use the extension. That makes maintenance part of the product lifecycle rather than a separate cleanup exercise.

We keep the engineers close enough to the implementation to investigate issues, update integrations, improve performance and adapt existing functionality without relearning the entire product first.
You can use that support for planned releases, compatibility work or individual fixes depending on how actively your extension is changing.

Working-hour overlap

We update extension code when changes around it affect existing behaviour, integrations or the way users complete their work.

Regular updates

We reproduce reported issues, isolate the affected behaviour and fix the underlying code rather than masking the visible symptom.

Direct collaboration

We inspect slow or unnecessary processing and improve the parts of the extension that affect responsiveness during everyday use.

Ongoing continuity

We add new functionality to established extensions while preserving the workflows and integrations that existing users already depend on.

Build with our team

Put an experienced extension
developer on your project.

Tell us what the extension needs to do, who will use it and which systems it must work with. We will help you define the engineering work and identify the right team structure.

TALK TO US

Why TBI

Engineers who stay with the build.

We have spent 15+ years building production software, including 60+ Chrome extensions, with a 150+ person in-house development team behind the work.
Our extension developers cover interface development, business integrations, workflow automation, optimisation and ongoing support, so you can keep related engineering work within one team.

You get developers you can interview before the engagement starts and an engagement model matched to the work itself.
We define requirements with you, keep technical decisions visible and continue supporting the extension after release when needed. If a simpler implementation covers the requirement, we will recommend that approach before adding unnecessary complexity.

15+

Years of experience

4.9/5 ★★★★★

Across 900+ reviews

150+

In-house developers

The Chrome extension ecosystem we work in

Tooling your team already recognises.

JavaScript Document markup Style sheets Browser scripting UI components Event handling Data caching Background processing JavaScript Document markup Style sheets Browser scripting UI components Event handling Data caching Background processing
Authentication Business data CRM integration Email workflows Calendar workflows File workflows Analytics Payment workflows Authentication Business data CRM integration Email workflows Calendar workflows File workflows Analytics Payment workflows
Source control Automated testing Build automation Error monitoring Performance profiling Deployment pipelines Security scanning Issue tracking Source control Automated testing Build automation Error monitoring Performance profiling Deployment pipelines Security scanning Issue tracking

Answers before you hire Chrome extension developers.

We estimate Chrome extension development after reviewing the scope rather than applying one standard project price.
Cost depends on the interface, custom functionality, connected business systems, testing requirements, release work and the amount of ongoing support involved.

A focused extension with a small number of workflows will require less engineering than a product with multiple user roles, external integrations and a supporting backend.
You can also choose hourly, dedicated-team or fixed-price engagement depending on how defined the work is. Share the requirements with us and we can break down the work before preparing an estimate.

150+ in-house developers

Hire your Chrome extension development team

Share what you want to build and we will help you define the work, team structure and next development step.

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