Ruby on Rails Engineer (Senior or Mid-Level) (f/m/d)

Why us?

Think Big and become a GAMECHANGER

portagon is the leading distribution platform for Alternative Investments in the private markets. With our standardized end-to-end software solution and our unique digital marketplace, we are transforming the private markets and creating an environment that makes alternative assets as accessible and transparent as public investments.

Do you want to grow with us and give your career the “go”? Then you’ve come to the right place!

To strengthen our Technology team, we are looking for a Ruby on Rails Engineer (Senior or Mid-Level) (f/m/d) who enjoys building reliable software, understanding the purpose behind it and shaping our platform together with the team. You’ll work on features end-to-end, contribute your ideas and help us continuously improve the technology behind our private markets platform.

• Flexible working – with flexible working hours, mobile-office options and a permanent employment contract. You’ll also get 30 days of vacation to make sure you have enough time to recharge.
• Deutschlandticket & JobRad – for your daily commute to the office or getting around the city.
• State-of-the-art equipment – a MacBook, modern equipment and a high-quality workplace right in the heart of Frankfurt.
• Virtual employee participation program – share in the success you help us build.
• Referral bonus – receive €3,000 when someone you refer successfully joins us in a permanent position.
• Pluxee Benefits – a monthly meal allowance of €68.55, plus an additional €50 monthly benefit on your Pluxee card for flexible use.
• Corporate Benefits – enjoy exclusive online discounts through our Corporate Benefits portal.
• Feel-good culture with an energy boost – a fully stocked office kitchen, fitness sessions and active breaks to keep both body and mind energized.
• Team spirit that connects – whether it’s the game console, table football or table tennis: there’s room for both focused work and having fun together. Regular team events bring us even closer as a team.
• Individual development & insights into the financial world – keep learning every day and grow both professionally and personally.

Your mission

• As a Ruby on Rails Engineer (f/m/d), you’ll develop and improve our platform together with our Product and Engineering teams – from the first conversation about a new requirement all the way to production.

• You’ll work on features end-to-end and take ownership not only of your code, but also of the outcome it creates.

• You’ll actively contribute to technical discussions and code reviews, sharing your perspective while staying open to different approaches and solutions.

• You’ll work with our stack around Ruby on Rails, Heroku, PostgreSQL, Redis, Sidekiq, Git and AWS and help us continuously improve the way we build and operate our applications.

• You’ll design, build and consume REST APIs and contribute to reliable integrations across our platform.

• You’ll write clean, maintainable and well-tested code because quality and reliability matter – especially in a FinTech environment where our software supports real investment processes.

• You’ll have the opportunity to shape our still-growing production and operations setup and actively contribute your ideas instead of simply following an established playbook.

• Most importantly, you’ll look beyond the individual ticket. We want you to understand why we’re building something, challenge assumptions when necessary and work with the team to find the best solution.

Your profile

• You have solid professional experience with Ruby on Rails. Whether you’re already at Senior level or still growing into it is less important to us than your skills, mindset and the way you work with others.

• You’re comfortable working with technologies such as Heroku, PostgreSQL, Redis, Sidekiq, Git and AWS – or you’re curious and able to quickly get up to speed with tools you haven’t worked with before.

• You have experience building and consuming REST APIs and understand how modern web applications and integrations work together.

• Testing is a natural part of your development process and you care about building software that you and your teammates can rely on.

• You don’t just take a ticket and run with it. You want to understand the problem behind a requirement and aren’t afraid to ask “why?” before deciding on the solution.

• You work independently and take ownership, but you also know when to ask for help. In return, you’re happy to support your teammates when they need another perspective.

• You communicate openly and constructively. You can challenge an idea without making it personal and are just as comfortable receiving feedback as you are giving it.

• You keep a clear head when things get complex, approach unfamiliar challenges pragmatically and don’t lose sight of the bigger picture.

• You’re interested in the FinTech world and Alternative Investments and want to understand the impact your work has beyond the code itself.

• You’re based in Germany or genuinely open to relocating here and enjoy being part of a team that also spends time together in our Frankfurt office.

About us

What matters to us

We are committed to evaluating everyone based on their abilities, regardless of age, gender, identity, ethnic background, sexual orientation, disability, or religion.

With us, you can make an impact from day one: Using the OKR (Objectives and Key Results) methodology, we define our strategic goals together and identify the actions needed to achieve them.

If you are looking for a team you can truly rely on—not just coworkers, but friends—you have come to the right place. Go together is one of our core values: We believe that team spirit is the key to overcoming the greatest challenges. We achieve success together, and we celebrate it together.

Give your career a Go!

We look forward to receiving your application, including your preferred start date. Our People Team will provide feedback as quickly as possible. We usually get back to applicants within 48 hours. If it takes a little longer in exceptional cases, we appreciate your understanding.

Email: talent@portagon.com
portagon GmbH
Baseler Straße 48 | 60329 Frankfurt am Main, Germany