Ruby Labs Ltd.

About Ruby Labs Ltd.

Ruby Labs Ltd. is a London-based product studio that builds and scales consumer subscription mobile and web applications. The company focuses on health, wellness, and productivity verticals, developing apps such as Hint, Able, and the award-winning fitness platform FitCoach. Using data-driven growth and proprietary technology, Ruby Labs rapidly prototypes, launches, and iterates products to serve millions of global users. The team combines engineering, product design, and performance marketing expertise to create sustainable digital businesses. Founded in 2018, Ruby Labs operates a portfolio of self-funded apps, emphasizing user privacy, scientific validation, and long-term customer value.

Open Positions at Ruby Labs Ltd.

Junior User Acquisition Manager

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jul 27, 2026

9 days ago

Senior CRO Manager

Ruby Labs Ltd.

European Union

Full-time

Expires Jul 27, 2026

Go

Ruby

Senior

+2 more

9 days ago

MCP Engineer / AI Backend Engineer

Ruby Labs Ltd.

European Union

Full-time

Expires Jul 25, 2026

JavaScript

TypeScript

Ruby

+4 more

11 days ago

UX Lead (Product & Growth)

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jul 25, 2026

JavaScript

Go

Ruby

+5 more

11 days ago

UX Lead (Product & Growth)

Ruby Labs Ltd.

European Union

Full-time

Expires Jul 25, 2026

11 days ago

Golang Developer

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jul 21, 2026

Go

Ruby

PostgreSQL

+3 more

15 days ago

Senior CRO Manager

Ruby Labs Ltd.

European Union

Full-time

Expires Jul 21, 2026

Go

Ruby

Senior

+2 more

15 days ago

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jul 21, 2026

Python

JavaScript

TypeScript

+4 more

15 days ago

Head of User Acquisition

Ruby Labs Ltd.

European Union

Full-time

Expires Jul 21, 2026

Go

Ruby

Design

+1 more

15 days ago

Senior Full-Stack Engineer (Next.js)

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jul 20, 2026

JavaScript

TypeScript

Go

+5 more

17 days ago

Junior User Acquisition Manager

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jul 20, 2026

Go

Ruby

Design

+2 more

17 days ago

Middle Full-Stack Engineer

Ruby Labs Ltd.

European Union

Full-time

Expires Jul 20, 2026

JavaScript

TypeScript

Go

+5 more

17 days ago

Product Manager – Mobile Platform

Ruby Labs Ltd.

European Union

Full-time

Expires Jul 20, 2026

Go

Ruby

iOS

+4 more

17 days ago

Growth Product Manager

Ruby Labs Ltd.

Serbia

Full-time

Expires Jul 16, 2026

Go

Ruby

Product Management

+1 more

21 days ago

Senior Meta User Acquisition Manager

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jul 15, 2026

Go

Design

Senior

+1 more

22 days ago

Senior Google User Acquisition Manager

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jul 15, 2026

Go

Ruby

Design

+2 more

22 days ago

Senior Data Analyst

Ruby Labs Ltd.

Serbia

Full-time

Expires Jul 15, 2026

Python

Go

Ruby

+4 more

22 days ago

Operations & Digital Content Specialist: Legal Templates and Forms

Ruby Labs Ltd.

European Union

Full-time

Expires Jul 15, 2026

Go

Ruby

Remote

22 days ago

Senior Full-Stack Developer

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jul 15, 2026

JavaScript

TypeScript

Go

+5 more

22 days ago

Senior Legal Specialist (Content & Platform enforcement)

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jul 15, 2026

Go

Ruby

Senior

+1 more

22 days ago

UX Lead (Product & Growth)

Ruby Labs Ltd.

European Union

Full-time

Expires Jul 15, 2026

JavaScript

Go

Ruby

+5 more

22 days ago

CRO Manager (use.ai)

Ruby Labs Ltd.

European Union

Full-time

Expires Jul 11, 2026

Go

Ruby

Remote

26 days ago

Graphic Designer

Ruby Labs Ltd.

European Union

Full-time

Expires Jul 11, 2026

Go

Ruby

Design

+1 more

26 days ago

Growth Manager (use.ai)

Ruby Labs Ltd.

European Union

Full-time

Expires Jul 11, 2026

Go

Ruby

Remote

26 days ago

Manual QA Engineer

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jul 9, 2026

Go

Ruby

PostgreSQL

+3 more

27 days ago

Middle Full-Stack Developer (Next.js, Node.js)

Ruby Labs Ltd.

Serbia

Full-time

Expires Jul 7, 2026

JavaScript

Go

Ruby

+5 more

30 days ago

Senior Full-Stack Developer (Next.js)

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jul 7, 2026

JavaScript

TypeScript

Go

+5 more

30 days ago

Ruby Labs Ltd.

European Union

Full-time

Expires Jul 5, 2026

Go

Ruby

Remote

1 month ago

Frontend Designer

Ruby Labs Ltd.

European Union

Full-time

Expires Jul 5, 2026

JavaScript

TypeScript

Go

+4 more

1 month ago

UX Lead (Product & Growth)

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jul 5, 2026

JavaScript

Go

Ruby

+5 more

1 month ago

Senior UX Researcher

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jul 5, 2026

Go

Ruby

Design

+2 more

1 month ago

Senior User Acquisition Manager (Meta & TikTok)

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jul 3, 2026

Go

Ruby

iOS

+3 more

1 month ago

Senior Recruiter

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jul 2, 2026

Go

Ruby

GitHub

+3 more

1 month ago

Middle Full-Stack Developer

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jul 2, 2026

JavaScript

Go

Ruby

+5 more

1 month ago

Ruby Labs Ltd.

European Union

Full-time

Expires Jul 2, 2026

Python

JavaScript

TypeScript

+4 more

1 month ago

Ruby Labs Ltd.

European Union

Full-time

Expires Jul 2, 2026

JavaScript

Go

Ruby

+2 more

1 month ago

Product Manager

Ruby Labs Ltd.

European Union

Full-time

Expires Jul 2, 2026

Go

Ruby

Product Management

+2 more

1 month ago

Senior Full-Stack Engineer

Ruby Labs Ltd.

European Union

Full-time

Expires Jul 2, 2026

JavaScript

TypeScript

Go

+5 more

1 month ago

Integration Engineer (JavaScript SDK & APIs)

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jun 27, 2026

JavaScript

TypeScript

Go

+4 more

1 month ago

Lead User Acquisition Manager

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jun 26, 2026

Go

Ruby

Design

+2 more

1 month ago

Junior Motion Designer

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jun 25, 2026

Go

Ruby

Design

+2 more

1 month ago

Junior Next.js Developer

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jun 25, 2026

JavaScript

Go

Ruby

+3 more

1 month ago

Junior–Mid Full Stack Engineer

Ruby Labs Ltd.

European Union

Full-time

Expires Jun 25, 2026

JavaScript

TypeScript

Go

+5 more

1 month ago

Senior CRO Manager

Ruby Labs Ltd.

European Union

Full-time

Expires Jun 23, 2026

Go

Ruby

Senior

+2 more

1 month ago

User Acquisition Manager

Ruby Labs Ltd.

European Union

Full-time

Expires Jun 23, 2026

Go

Ruby

React

+2 more

1 month ago

User Acquisition Manager

Ruby Labs Ltd.

European Union

Full-time

Expires Jun 23, 2026

Go

Ruby

React

+2 more

1 month ago

Email Growth Manager

Ruby Labs Ltd.

European Union

Full-time

Expires Jun 21, 2026

Go

Ruby

Remote

2 months ago

Ruby Labs Ltd.

European Union

Full-time

Expires Jun 21, 2026

Go

Ruby

Remote

+1 more

2 months ago

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jun 21, 2026

2 months ago

UX/UI Frontend Developer

Ruby Labs Ltd.

Serbia

Full-time

Expires Jun 21, 2026

JavaScript

TypeScript

Go

+4 more

2 months ago

Junior AI Engineer

Ruby Labs Ltd.

European Union

Full-time

Expires Jun 21, 2026

JavaScript

TypeScript

Go

+5 more

2 months ago

Growth & CRO Specialist

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jun 21, 2026

Go

Ruby

Remote

2 months ago

Ruby Labs Ltd.

Spain

Full-time

Expires Jun 21, 2026

Python

JavaScript

TypeScript

+4 more

2 months ago

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jun 18, 2026

TypeScript

Go

Ruby

+2 more

2 months ago

Head of Product

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jun 16, 2026

Go

Ruby

Remote

2 months ago

Senior Next.js Full Stack Engineer

Ruby Labs Ltd.

European Union

Full-time

Expires Jun 16, 2026

JavaScript

TypeScript

Go

+5 more

2 months ago

Head of User Acquisition

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jun 16, 2026

Go

Ruby

Design

+1 more

2 months ago

Expires soon

Ruby Labs Ltd.

European Union

Full-time

Expires Jun 14, 2026 (Soon)

Python

JavaScript

TypeScript

+4 more

2 months ago

Expires soon

Senior CRO Manager

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jun 10, 2026 (Soon)

Go

Ruby

Senior

+2 more

2 months ago

Expires soon

Golang Developer

Ruby Labs Ltd.

Kazakhstan

Full-time

Expires Jun 10, 2026 (Soon)

Go

Ruby

PostgreSQL

+3 more

2 months ago

Expires soon

Growth Product Manager

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jun 10, 2026 (Soon)

Go

Ruby

Product Management

+1 more

2 months ago

Expires soon

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jun 8, 2026 (Soon)

Python

Go

Ruby

+3 more

2 months ago

Expires soon

Mid-Level Data Analyst

Ruby Labs Ltd.

Ukraine

Full-time

Expires Jun 8, 2026 (Soon)

Python

Go

Ruby

+4 more

2 months ago

Expires soon

SERM / SEO Specialist (Brand Reputation & Search Visibility)

Ruby Labs Ltd.

Serbia

Full-time

Expires Jun 8, 2026 (Soon)

Go

Ruby

Remote

2 months ago

Expired

Intellectual Property Lawyer

Ruby Labs Ltd.

Ukraine

Full-time

Expired Jun 6, 2026

Go

Ruby

Remote

2 months ago

Expired

Product Manager

Ruby Labs Ltd.

European Union

Full-time

Expired Jun 2, 2026

Go

Ruby

Product Management

+2 more

2 months ago

Expired

Head of User Acquisition

Ruby Labs Ltd.

European Union

Full-time

Expired Jun 2, 2026

Go

Ruby

Design

+1 more

2 months ago

Expired

Email Marketing Growth Manager

Ruby Labs Ltd.

European Union

Full-time

Expired Jun 2, 2026

Go

Ruby

Remote

2 months ago

Expired

Senior Growth Product Manager

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 31, 2026

Go

Ruby

Product Management

+2 more

2 months ago

Expired

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 31, 2026

Go

Ruby

PostgreSQL

+3 more

2 months ago

Expired

Senior Full-Stack Software Developer

Ruby Labs Ltd.

European Union

Full-time

Expired May 31, 2026

JavaScript

TypeScript

Go

+5 more

2 months ago

Expired

Head of User Acquisition

Ruby Labs Ltd.

Lithuania

Full-time

Expired May 31, 2026

Go

Ruby

Design

+1 more

2 months ago

Expired

Senior UA Manager (Meta & TikTok)

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 31, 2026

Go

Ruby

iOS

+2 more

2 months ago

Expired

UX Lead (Product & Growth)

Ruby Labs Ltd.

European Union

Full-time

Expired May 31, 2026

Go

Ruby

Design

+2 more

2 months ago

Expired

Senior User Acquisition Manager

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 31, 2026

Go

Ruby

Design

+2 more

2 months ago

Expired

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 31, 2026

Go

Ruby

Remote

2 months ago

Expired

Team Lead Developer (Next.js / Node.js)

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 31, 2026

JavaScript

Go

Ruby

+4 more

2 months ago

Expired

Ruby Labs Ltd.

Croatia

Full-time

Expired May 31, 2026

Go

Ruby

Design

+1 more

2 months ago

Expired

Lead NextJS Full Stack Engineer

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 29, 2026

2 months ago

Expired

Senior Copywriter & Content Lead

Ruby Labs Ltd.

European Union

Full-time

Expired May 29, 2026

Go

Ruby

Senior

+1 more

2 months ago

Expired

Senior Legal Counsel

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 29, 2026

Go

Ruby

Senior

+1 more

2 months ago

Expired

Senior CRO Manager

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 29, 2026

Go

Ruby

Senior

+2 more

2 months ago

Expired

Head of Customer Support

Ruby Labs Ltd.

Brazil

Full-time

Expired May 29, 2026

Go

Ruby

Remote

2 months ago

Expired

2D Graphic & Motion Designer

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 27, 2026

Go

Ruby

Design

+1 more

2 months ago

Expired

International Tax Compliance Specialist

Ruby Labs Ltd.

European Union

Full-time

Expired May 27, 2026

Go

Ruby

Junior

+1 more

2 months ago

Expired

React Native Developer (Mid–Senior)

Ruby Labs Ltd.

European Union

Full-time

Expired May 27, 2026

JavaScript

Go

Ruby

+5 more

2 months ago

Expired

Forward-Deployed Engineer

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 27, 2026

JavaScript

TypeScript

Go

+3 more

2 months ago

Expired

Head of User Acquisition

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 27, 2026

2 months ago

Expired

Senior User Acquisition Manager

Ruby Labs Ltd.

European Union

Full-time

Expired May 22, 2026

Go

Ruby

React

+4 more

3 months ago

Expired

Head of Product

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 20, 2026

Go

Ruby

Swift

+1 more

3 months ago

Expired

2D Graphic and Motion Designer

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 20, 2026

Go

Ruby

Design

+1 more

3 months ago

Expired

Ruby Labs Ltd.

European Union

Full-time

Expired May 20, 2026

Go

Ruby

Remote

3 months ago

Expired

Senior Backend Engineer

Ruby Labs Ltd.

European Union

Full-time

Expired May 20, 2026

JavaScript

Go

Ruby

+5 more

3 months ago

Expired

User Acquisition Manager

Ruby Labs Ltd.

Serbia

Full-time

Expired May 17, 2026

Go

Ruby

Design

+1 more

3 months ago

Expired

Lead React Native Developer

Ruby Labs Ltd.

European Union

Full-time

Expired May 15, 2026

3 months ago

Expired

Anti-Money Laundering (AML) Officer

Ruby Labs Ltd.

Brazil

Full-time

Expired May 15, 2026

3 months ago

Expired

Mid-Level Customer Support Representative (Payouts)

Ruby Labs Ltd.

Brazil

Full-time

Expired May 15, 2026

Go

Ruby

Mid-level

+1 more

3 months ago

Expired

Mid-Level Customer Support Representative (Tickets)

Ruby Labs Ltd.

Brazil

Full-time

Expired May 15, 2026

Go

Ruby

Mid-level

+1 more

3 months ago

Expired

Head of Customer Support

Ruby Labs Ltd.

Brazil

Full-time

Expired May 15, 2026

3 months ago

Expired

Junior Customer Support Representative (Tickets)

Ruby Labs Ltd.

Turkey

Full-time

Expired May 15, 2026

Go

Ruby

Junior

+1 more

3 months ago

Expired

Ad Creative Producer (iGaming / Social Casino)

Ruby Labs Ltd.

European Union

Full-time

Expired May 15, 2026

Go

Ruby

Remote

3 months ago

Expired

Junior Customer Support Representative (Payouts)

Ruby Labs Ltd.

Turkey

Full-time

Expired May 15, 2026

Go

Ruby

Junior

+1 more

3 months ago

Expired

Lead Full-Stack Engineer

Ruby Labs Ltd.

European Union

Full-time

Expired May 15, 2026

JavaScript

TypeScript

Go

+5 more

3 months ago

Expired

Full-Stack Engineer

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 14, 2026

JavaScript

Go

Ruby

+4 more

3 months ago

Expired

CRO Manager (AI Driven)

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 14, 2026

Go

Ruby

Remote

3 months ago

Expired

Junior User Acquisition Manager

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 14, 2026

Go

Ruby

Design

+2 more

3 months ago

Expired

Anti-Money Laundering (AML) Officer

Ruby Labs Ltd.

Brazil

Full-time

Expired May 14, 2026

Go

Ruby

Remote

3 months ago

Expired

Head of Customer Support

Ruby Labs Ltd.

Brazil

Full-time

Expired May 14, 2026

Go

Ruby

Remote

3 months ago

Expired

Senior Growth Product Manager

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 11, 2026

Go

Ruby

Product Management

+2 more

3 months ago

Expired

Email Marketing Growth Manager

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 11, 2026

Go

Ruby

Remote

3 months ago

Expired

Senior Data Analyst

Ruby Labs Ltd.

Romania

Full-time

Expired May 11, 2026

Python

Go

Ruby

+4 more

3 months ago

Expired

Customer Support Agent

Ruby Labs Ltd.

Brazil

Full-time

Expired May 11, 2026

Go

Ruby

Remote

3 months ago

Expired

Senior Recruiter

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 11, 2026

Go

Ruby

GitHub

+3 more

3 months ago

Expired

Middle Full-Stack Developer

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 9, 2026

JavaScript

Go

Ruby

+5 more

3 months ago

Expired

Community Manager

Ruby Labs Ltd.

European Union

Full-time

Expired May 9, 2026

Go

Ruby

Remote

3 months ago

Expired

Head of User Acquisition

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 6, 2026

Go

Ruby

Design

+1 more

3 months ago

Expired

Lead NextJS Full Stack Engineer

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 6, 2026

JavaScript

TypeScript

Go

+5 more

3 months ago

Expired

Social Media Manager

Ruby Labs Ltd.

European Union

Full-time

Expired May 6, 2026

Go

Ruby

Remote

3 months ago

Expired

2D Graphic and Motion Designer

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 3, 2026

Go

Ruby

Design

+1 more

3 months ago

Expired

International Tax Compliance Specialist

Ruby Labs Ltd.

European Union

Full-time

Expired May 3, 2026

Go

Ruby

Junior

+1 more

3 months ago

Expired

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 3, 2026

JavaScript

TypeScript

Go

+4 more

3 months ago

Expired

Senior Data Analyst

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 3, 2026

Python

JavaScript

Go

+4 more

3 months ago

Expired

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 3, 2026

Python

JavaScript

TypeScript

+4 more

3 months ago

Expired

Creative Producer

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 3, 2026

Go

Ruby

Remote

3 months ago

Expired

IT Security Lead

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 2, 2026

TypeScript

Go

Ruby

+4 more

3 months ago

Expired

Deputy Head of Engineering (Node.js / Next.js)

Ruby Labs Ltd.

Ukraine

Full-time

Expired May 1, 2026

JavaScript

TypeScript

Go

+4 more

3 months ago

Expired

Mid-Level Data Analyst

Ruby Labs Ltd.

Ukraine

Full-time

Expired Apr 29, 2026

Python

Go

Ruby

+4 more

3 months ago

Expired

Ruby Labs Ltd.

Ukraine

Full-time

Expired Apr 29, 2026

Python

Go

Ruby

+3 more

3 months ago

Expired

Head of Experimentations

Ruby Labs Ltd.

European Union

Full-time

Expired Apr 29, 2026

Go

Ruby

Remote

3 months ago

Expired

Junior CRO Specialist

Ruby Labs Ltd.

Ukraine

Full-time

Expired Apr 29, 2026

Go

Ruby

Junior

+1 more

3 months ago

Expired

Frontend UI/UX Developer (AI-Driven Design)

Ruby Labs Ltd.

Ukraine

Full-time

Expired Apr 29, 2026

JavaScript

TypeScript

Go

+4 more

3 months ago

Expired

Ruby Labs Ltd.

European Union

Full-time

Expired Apr 29, 2026

Go

Ruby

Remote

3 months ago

Expired

Forward-Deployed Engineer

Ruby Labs Ltd.

Ukraine

Full-time

Expired Apr 28, 2026

JavaScript

TypeScript

Go

+3 more

3 months ago

Expired

Junior Project Manager

Ruby Labs Ltd.

Ukraine

Full-time

Expired Apr 28, 2026

Go

Ruby

Junior

+1 more

3 months ago

Expired

Ruby Labs Ltd.

Ukraine

Full-time

Expired Apr 28, 2026

Go

Ruby

PostgreSQL

+3 more

3 months ago

Expired

Lead React Native Developer

Ruby Labs Ltd.

European Union

Full-time

Expired Apr 27, 2026

Go

Ruby

React

+5 more

3 months ago

Expired

Intellectual Property Lawyer

Ruby Labs Ltd.

Ukraine

Full-time

Expired Apr 27, 2026

Go

Ruby

Remote

3 months ago

Expired

Integrations Engineer (Payments SDK & Integrations)

Ruby Labs Ltd.

Ukraine

Full-time

Expired Apr 27, 2026

JavaScript

TypeScript

Go

+3 more

3 months ago

Expired

Ruby Labs Ltd.

European Union

Full-time

Expired Apr 26, 2026

Go

Ruby

Remote

3 months ago

Expired

Head of Data Analytics

Ruby Labs Ltd.

European Union

Full-time

Expired Apr 26, 2026

Python

Go

Ruby

+3 more

3 months ago