Senior Full Stack Developer

Blinkist; Santander; Presencial; EUR 50.000 - 70.000; Jornada completa

Descripción de la vacante

Join a leading company in empowering individuals through impactful learning experiences as a Senior Full Stack Developer. You will be at the forefront of a significant transition in their tech stack, transitioning from Ruby on Rails to TypeScript while leading a team of engineers in creating scalable, efficient applications. This role offers the chance to make high-level architectural decisions and mentor junior talent in an empowering and flexible work environment.

Servicios

Flexible approach to work

Monthly work-from-home or transport reimbursement

Unlimited access to the Go1 Learning Hub and Blinkist app

Wellness initiatives and an Employee Assistance Program

Family planning & parental leave

Employee Stock Option Plan

One time work from home office set up budget

Formación

• 5+ years of experience in full-stack web development.
• Deep expertise in TypeScript backend development.
• Strong React experience for building scalable frontend applications.

Responsabilidades

• Lead backend modernization efforts from Ruby on Rails to TypeScript.
• Refactor complex codebases and improve legacy systems.
• Mentor mid-level and junior developers.

Conocimientos

TypeScript

React

Ruby on Rails

Backend Development

API Development

Refactoring

Technical Communication

Descripción del empleo

Join to apply for the Senior Full Stack Developer role at Blinkist

3 weeks ago Be among the first 25 applicants

Blinkist connects people with powerful ideas from leading authors and experts to broaden perspectives, gain knowledge, and spark understanding in all areas of their life, both personal and professional.

Used by over 32 million people worldwide, Blinkist distills the key ideas from the most relevant, impactful books and podcasts. These can be read or listened to in 15-minute summaries, called Blinks.

About The Role

Scale. Refactor. Own It. Make an Impact.

At Blinkist, we don’t just build software—we create products that inspire millions to learn and grow. Our Web Team is evolving, and we need a Senior Full Stack Developer with a strong backend focus who can help deprecate or maintain our existing Ruby on Rails stack while driving backend modernisation in TypeScript .

If you have strong TypeScript and React skills , enough Ruby on Rails experience to navigate and improve legacy systems , and the ability to make strategic decisions that balance technical and business impact , keep reading.

Who We Are

Our Web Team powers the Blinkist platform, ensuring a seamless experience for millions of users . You’ll join a high-impact engineering team of :

• Two Senior Engineers – Deep expertise across the stack, setting technical direction.
• One Mid-Level Engineer – Solid, fast-growing, needs mentorship and guidance.
• One Junior Engineer – Learning fast, eager to improve.

We need a Senior Full Stack Engineer who can hit the ground running, refactor complex codebases, and lead TypeScript-based backend development while making high-level architectural decisions that drive long-term success.

Who You Are

• You’re a backend powerhouse. Strong TypeScript backend experience is a must—you build performant, scalable, and maintainable APIs and services.
• You have strong React expertise. You can develop complex, scalable frontends that work seamlessly with a modern backend architecture.
• You have a solid grasp of Ruby on Rails. You can work with existing Rails applications, deprecate old systems, and maintain critical backend functionality as needed.
• You have a strong grasp of refactoring. You can untangle complex legacy code, improve performance, and make sustainable changes with confidence.
• You quickly understand legacy architecture. You get up to speed fast and identify areas for improvement, making meaningful contributions early on. You don’t just work around issues—you improve them for the next developer.
• You think beyond code. You understand business needs, prioritise strategically, and align technical improvements with company goals.
• You take ownership. You identify problems, solve them, and drive improvements—without waiting for direction.
• You lead with impact. You mentor mid-level and junior devs, helping them level up.
• You execute relentlessly. You balance speed with scalability—no over-engineering, just smart decisions.

What You'll Do

• Led backend modernization efforts, transitioning from Ruby on Rails to a TypeScript-based backend while ensuring long-term scalability.
• Navigate and improve existing systems , identifying weaknesses and delivering long-term fixes, especially in Ruby on Rails.
• Deprecate or maintain our Rails stack , ensuring business continuity while transitioning backend logic to TypeScript.
• Develop and optimize front-end applications using React and TypeScript, ensuring a seamless and scalable user experience.
• Make high-impact technical and architectural decisions that balance scalability, maintainability, and business goals.
• Mentor and support mid-level and junior developers, shaping their growth.
• Collaborate cross-functionally , turning complex business needs into elegant, practical solutions.

What You Need To Have

• 5+ years of experience in full-stack web development, with a strong backend focus.
• Deep expertise in TypeScript backend development —you’ve built scalable, production-grade APIs and services.
• Strong React experience —you can architect and build scalable frontend applications.
• Enough Ruby on Rails experience to work with legacy systems, refactor as needed, and ensure backend stability.
• A track record of tackling tech debt and leading large-scale refactoring efforts.
• Experience designing and optimizing scalable applications —you know when to refactor when to scale, and when to ship.
• Strong business acumen —you don’t just see code, you see the bigger picture and make decisions that drive business impact.
• A bias for action —you own problems end-to-end and move fast.
• Excellent technical communication —you explain decisions clearly and help others grow.
• Proficiency in English (and ideally, you’re in Berlin).

Why Join Us?

• You’ll own major refactoring efforts and drive backend modernization at scale.
• You’ll have the freedom to transition our backend to a TypeScript-based stack.
• You’ll work on cutting-edge frontend solutions using React and TypeScript.
• You’ll mentor and grow a team that’s pushing boundaries.
• You’ll have full ownership, with no bureaucratic nonsense.

If you’re a backend-heavy full-stack engineer with strong TypeScript, React, and enough Ruby on Rails experience to maintain or deprecate legacy systems, we'd love to hear from you!

At Blinkist, our unique culture of empowerment, mutual respect, and transparency has always been our defining characteristic. We support each other and carve out opportunities for every individual to develop and grow. We strongly believe that diversity powers innovation, thus we celebrate and support our differences, providing equal opportunities for employment and career growth. We embrace a flexible, remote-friendly way of working that supports different needs and lifestyles.

• Flexible approach to work
• Monthly work-from-home or transport reimbursement
• One time work from home office set up budget
• Employee Stock Option Plan
• Unlimited access to the Go1 Learning Hub and Blinkist app
• Volunteer leave to give back to the community
• Family planning & parental leave, plus support for parents returning to work
• Wellness initiatives and an Employee Assistance Program

If you choose to join our team in Berlin, you'll have access to our modern office space in Neukölln and enjoy healthy plant-based meals prepared fresh every day by our very own chef.

Apply Now

If we’ve captured your interest and you want to take part in changing the world through the power of ideas – apply now and tell us what got you excited about this opportunity.

We look forward to hearing from you! ️

Research shows that while men apply to jobs when they meet an average of 60% of the criteria, women and other marginalised folks tend to only apply when they check every box. If you think you have what it takes, even if you don't meet every single point on the job description, please still get in touch. We’d love to have a chat and see if you could be a great fit.

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