IT and programming
Senior React & Ruby Developer - remote job
Lemon.io
Senior React & Ruby Developer - IT and programming, remote
Lemon.io is hiring a Senior React & Ruby Developer - a senior role, so the employer expects you to make the calls yourself. The role sits in IT and programming and is fully remote. The company hires candidates based in Europe.
The main tools named in the advert are: React, AWS. Your CV should show concrete examples of exactly these skills.
The employer did not publish a figure; that is settled at interview. The employer asks for working hours that overlap the team's, which needs a schedule agreed up front.
This vacancy passed an automated check: the list excludes any advert requiring a foreign work permit, visa sponsorship, a particular citizenship, or residence in a specific country.
In brief
- Company
- Lemon.io
- Category
- IT and programming
- Who may apply
- From anywhere in Europe
- Work mode
- Fully remote
- Level
- Senior
- Tools
- React, AWS
- Posted
- 21 July 2026 (a month ago)
- Active
- until 30 August 2026
- Source
- Working Nomads
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The employer's description
Are you a talented Senior Developer looking for a remote job that lets you show your skills and get decent compensation? Look no further than Lemon.io - the marketplace that connects you with hand-picked startups in the US and Europe.
What we offer:
* The rate depends on your seniority level, skills and experience. We've already paid out over $11M to our engineers.
* No more hunting for clients or negotiating rates - let us handle the business side of things so you can focus on what you do best.
* We'll manually find the best project for you according to your skills and preferences.
* Choose a schedule that works best for you. It’s possible to communicate async or minimally overlap within team working hours.
* We respect your seniority so you can expect no micromanagement or screen trackers.
* Communicate directly with the clients. Most of them have technical backgrounds. Sounds good, yeah?
* We will support you from the time you submit the application throughout all cooperation stages.
* Most of our projects involve working in a fast-paced startup environment. We hope you like it as much as we do.
* Through our community, we will connect you with the best developers from more than 75 countries.
Requirements for the Senior Ruby & React Position:
* 5+ years of software development experience
* React.js 2+ years and Ruby 5+ years OR React.js 5+ years and Ruby 2+ years
* Experience with AWS, GCP, or Azure is required.
Other requirements:
* Strong technical skills: as a Senior Developer, you are expected to be able to create projects from scratch and have a deep understanding of application architecture.
* Clear and effective communication in English - advanced ability to discuss business tasks, justify decisions, and communicate issues. Good self-presentation is also essential for upcoming client calls.
* Strong self-organizational skills - ability to work full-time remotely with no supervision.
* Reliability - we want to trust you and expect that you won’t let us and the client down.
* Adaptability and Flexibility - the ability to onboard the project promptly after accepting it and start delivering results quickly.
Sounds good for you? Apply now and join the Lemon.io community!
NOT YOUR TECH STACK?
We have a variety of projects, so if you have 4+ years of commercial software development experience and are proficient in AI Agent Architecture, AI Automation Architecture, AI Engineering, Site Reliability Engineering, Platform Engineering, React & Python, React & Golang, Golang, React & Java, Ruby, PHP & Vue, Vue & Node.js, React & .NET, Android & iOS, iOS & Swift, Flutter & Dart, Blockchain (Ethereum/Ethers.js/Wagmi/Viem/Solana), Angular & Node.js, Vue & .NET, Python & Vue, DevOps, MLOps, Data Science, Angular & PHP, Angular & .NET, Symfony & React, Symfony & Vue, Symfony & Angular, Python, Symfony & JavaScript & Next.js & TypeScript, Data Analysis, React & PHP, Data Engineering, Project Management, Product Management, QA Automation, QA Manual, Embedded Software Engineering, React Native & Node, React Native & React, React Native & Ruby, React Native & Python, WordPress, Android, Data Annotation, Angular, Python & Node, React & Node.js, Java & Spring, Svelte & Python, Svelte & Node.js, Svelte & TypeScript, Rust, Shopify & JavaScript, Vue & Nuxt, PHP & Laravel, UI/UX Design, Animation, Graphic Design, React & Node & React Native, .NET & C#, Electron, Scala, C++, Unreal Engine & C++, Python & LLM, Unity, or Machine Learning Engineering, we would be happy to connect with you and match you with a project that fits your experience.
We do not provide visa assistance, and our cooperation model does not include the benefits typically offered with direct hire.
We work with developers from 75+ countries across Europe, Latin America, North America (the U.S. and Canada), selected countries in Asia (Japan, Singapore, South Korea, the Philippines, Indonesia, Malaysia, Vietnam, Thailand, and Israel), Oceania (Australia, New Zealand, and Papua New Guinea), and Africa (including Morocco and South Africa).
The text is kept in the employer's original language, because that is the language you will apply in.
Frequently asked questions about this job
Can I apply for Senior React & Ruby Developer from where I live?
Yes. Lemon.io accepts candidates for this vacancy from anywhere in Europe, so you need no work permit for a foreign country. The advert passed an automated check: had the employer required a work permit, visa sponsorship or residence in a specific country, it would not be on this board.
What pay is stated?
Lemon.io did not publish pay for this vacancy. Most remote adverts publish no figure; it is settled at interview.
How do I apply?
You apply directly to the employer, through the original advert published on Working Nomads. Donator takes no applications, charges no commission and stores no CV.
What kind of vacancy is this?
A fully remote role in IT and programming. Hybrid adverts and anything requiring office attendance are not published on this board.
Free certificates for this vacancy
This advert asks for React, AWS. Below are the free credentials that cover exactly those tools.
Developer certificates (10+ tracks)
certificatefreeCodeCamp · ~300 h
A non-profit; a card is never requested. The certificate is issued after five projects are submitted and pass.
moderate weightAWS Educate: Introduction to Generative AI
digital badgeAWS · ~4 h
Email only: no card and no AWS account. The labs run in the browser and the minimum age is 13.
moderate weightSimuLearn: AI Practitioner and Cloud Practitioner badges
digital badgeAWS · ~10 h
The badges on these two tracks are free. The other SimuLearn plans require a paid Skill Builder subscription.
moderate weightApplied Skills (scenario-based credentials)
exam is free tooMicrosoft · ~1 h
Microsoft's only free verifiable credential: a lab task in 30-45 minutes, with no proctor, no ID check and no card. Retakes are allowed.
It has to be finished in one session; there is no save and resume.
strong brand
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