Full-Stack Engineer - Ruby on Rails

FeedbackFruits; Netherlands; On-site; EUR 65,000 - 92,000; Full time

Benefits offered by this job

Hybrid work (3 days onsite)

25 paid holidays per year

Birthday day off

Pension plan

Volunteering leave

Learning budget €550 per year + 3 days

Commuting allowance

Swapfiets subscription

Office gym access

Mental health support OpenUp

Job summary

FeedbackFruits in Amsterdam is hiring a senior full-stack engineer to help us build the next version of our platform. You’ll own end-to-end delivery across backend, database, and the server-rendered UI, collaborating with PMs and designers.

You’ll migrate Ember features to Rails + Hotwire, improve CI/CD, and keep the codebase healthy while delivering impact for educators and learners. Hybrid work and strong testing culture are core here.

Qualifications

• You have 5+ years of professional software engineering experience and Ruby on Rails is your home stack.
• You write tests as a matter of course using RSpec and Capybara.
• You are user-oriented and think about the person using the feature.
• You’ve navigated a legacy codebase and improved it thoughtfully.
• You understand CI/CD and advocate good practices in the codebase.
• You communicate clearly and collaborate effectively in reviews.
• You document decisions and prefer thoughtful trade-offs.
• You’re familiar with Ember.js or migration to Hotwire; AI dev tooling/ Azure or observability help.

Responsibilities

• Own full-stack delivery on the roadmap from backend logic to server-rendered UI.
• Lead Ember to Rails + Hotwire migration with PM/designer collaboration.
• Handle support escalations and legacy bugs while delivering features.
• Improve CI/CD practices and deployment pipelines for reliable releases.
• Maintain performance across the stack and integrations with LMS via LTI.
• Participate in code reviews and uphold quality standards.

Skills

Ruby on Rails

RSpec

Capybara

CI/CD

Full-stack

Testing

Ember.js familiarity

Tools

Ember.js

Hotwire

Azure

Observability tools

Job description

Overview

FeedbackFruits is an edtech company focused on making active, engaged, and personal learning the norm in education worldwide. We build tools that help universities and colleges turn passive lectures into collaborative, skill-building experiences. We partner with instructors and institutions to scale this shift, and operate as a hybrid team with a base in Amsterdam and colleagues across multiple countries. If you’re excited about improving education through thoughtful technology, we’d love to have you on board.

We’re currently hiring a senior full-stack engineer to help us build the next version of FeedbackFruits.

Responsibilities

• Join one of our engineering squads and own full-stack delivery on the roadmap, from backend logic and database design to the server-rendered UI it connects to

• Lead the migration of Ember features to Rails + Hotwire, understanding existing functionality, redesigning it thoughtfully with PMs/designers, and shipping something better than what was there before

• Handle support escalations and legacy bug-fixing alongside feature work, with the balance depending on squad; keep the codebase healthy and customers unblocked

• Contribute to improving CI/CD practices and the deployment pipeline to enable more frequent, reliable releases

• Keep performance in mind across the stack

• Build and maintain integrations with Learning Management Systems using LTI and partner APIs

• Participate in code reviews and technical design discussions, upholding quality standards while balancing effort

What you bring

• You have 5+ years of professional software engineering experience and Ruby on Rails is your home stack: you’ve shipped production code with it and are comfortable with its conventions

• You write tests as a matter of course. RSpec and Capybara are part of your regular toolkit, and you write tests that catch issues rather than only confirming the happy path

• You are user-oriented: when deciding how a feature should work, your first instinct is to consider the person using it, not just the easiest implementation

• You’ve worked in a legacy codebase before and navigated it well, knowing what to fix, what to leave, and how to leave things better than you found them

• You understand CI/CD well enough to work within good practices and help nudge a codebase toward them

• You communicate clearly, give honest feedback in code reviews, and are collaborative without needing everyone to agree

• You are pragmatic and document your decisions; you’d rather make a thoughtful trade-off and write it down than chase the perfect solution indefinitely

• Familiarity with Ember.js or migration scenarios from it to Hotwire is a genuine advantage; experience with AI dev tooling, Azure, or observability practices would serve you well

What you get

• Gross yearly salary between €65.000 and €92.000 (incl. 8% holiday allowance)

• Hybrid work schedule (3 days onsite)

• 25 paid holidays per year

• A day off for your birthday

• Advantageous pension scheme

• 3 days of volunteering leave per year

• €550 Learning & Development budget per year + 3 days paid leave for learning

• Commuting allowance and Swapfiets subscription

• Free access to our office gym

• Unlimited access to mental health support via OpenUp (EU, US, and AUS)