< Career

Senior Ruby on Rails Developer

15000 - 20000 PLN + VAT (B2B) lub 12400 - 16600 brutto (UoP)

JohnnyBros was founded in 2009 and consequently, from the very beginning, has been developing the same activity profile, which is designing, developing and optimizing websites for our regular business partners. The websites which we optimize are visited by more than 500 000 organic users from all around the world monthly, and that number is constantly growing. Besides business, a very important aspect of JohnnyBros is corporate social responsibility. We build our company culture based on an innovation, but most importantly, on empathy and mutual respect. During the job interview, we will be happy to provide you with more details regarding our work and projects that we are carrying out.

We are looking for a Senior Ruby on Rails Developer. Remote work possible. 

If you recommend us someone whom we later hire, you will get 5000 PLN (paid in two instalments: 50% at the beginning of cooperation and 50% after successful completion of the probationary period).

We are looking for someone who has already worked in Ruby on Rails for at least 3 years and who because of their experience can bring new solutions to the project, which contributes to the technological development of our company and our products.

Because we develop products for an internal customer, we have freedom when it comes to making decisions regarding the process of creating these products. It also means that we do not look for new assignments. Thus, the ability to talk to business clients is not required. We also do not require more advanced English skills than it is necessary to read technical documentation.

We require:

  • Ruby on Rails >=5;
  • RSpec;
  • MySQL;
  • Git.

We appreciate the knowledge of:

  • JavaScript;
  • Bash.

What you can expect from us:

Most importantly, a positive atmosphere and a relationship based on trust and respect. The company is our second home where we gladly come back on Monday morning.


  • cooperation with experienced web developers and full code review;
  • 4h of self-development each Friday;
  • private medical care;
  • paid vacation leave;
  • Benefit System;
  • flexible working hours;
  • influence on improving your and your team’s work;
  • financing hobby courses - to help you develop your hobby, we will pay 70% of the price of hobby courses chosen by you;
  • paid sabbatical - JohnnyBros veterans are given an additional two-month paid sabbatical;
  • integration trips - we build a positive atmosphere in our team also outside the office;
  • tourist Fridays - once a month we go out together to get to know each other better;
  • foosball - we know that taking breaks from work has a positive impact on the employee’s condition;
  • workplace with Mac OS;
  • tasty sandwiches, tee, and coffee;
  • and many, many more.

We read every application. However, we will get in touch only with the chosen candidates.


Please include in your CV the clause: „I hereby agree to the processing of personal data included in my application for the needs necessary to carry out the recruitment process carried out by JohnnyBros based in Gdańsk in accordance with art. 6 par. 1 lit. a Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of individuals with regard to the processing of personal data and on the free movement of such data and repealing Directive 95/46/EC (General Data Protection Regulation)”.

We inform that the data administrator is JohnnyBros with its registered office in Gdańsk Strzelecka 7b. The personal data is collected for recruitment purposes. You have the right to access and amend your data. The provision of data in the scope specified in the Labour Code Act of 26 June 1974 is obligatory. Provision of additional data is voluntary.

Unique atmosphere

JohnnyBros has become a synonym of unique atmosphere and work culture. Open and friendly co-workers will make you feel at home here. At JohnnyBros, we support each other and share our knowledge, and we base our relationships on respect. Thanks to this, even Mondays are very pleasant here.

Courses and trainings

If you don’t move forward, you move backwards. Since you consider applying to our company, we assume you want to develop. We appreciate ambitious people, so we will pay for your development. Why not polish up on your Ruby on Rails skills? We will also give you time for self-development during working hours.


Do you think that someone deserves a prize? A friend from your team helped you solve a problem? You can award them! JohnnyBoss is prize money awarded to employees by other employees. You name a person who helped you, we take care of the prize money.

Relocation supplement

You don’t have to fear moving from a different region. To help you acclimate to a new place, for the first three months we will pay you a relocation supplement worth up to 4500 PLN. Our team will also gladly show you the beauty of Gdańsk.

Private medical care

Health is extremely important, therefore you will get access to complex private medical care. Thanks to that, you will quickly book an appointment with a doctor, if you need one. You can choose from thousands of medical facilities all over Poland.

Flexible working hours

Are you an early bird or a night owl? Start your day the way you like! We know that everyone has a different biological clock, therefore you decide at what time you come to work. You can show up in the office between 7 A.M. and 9 A.M.

Newest technology

You will have at your disposal an Apple computer equipped with necessary software helping you work freely.

Benefit System

We will give you a MultiSport card with an option to exchange it for other recreation services: tickets to the cinema or theatre, vouchers for shopping, going to a restaurant or vacation trips.

Sports activities

As they say, a sound mind dwells in a sound body. Therefore, once a week we pay for renting a football field and a sports hall. And if you prefer running without a ball, we will pay for your entry fee!

2000 PLN for a baby

Family is a value that cannot be underestimated. We will give you an extra supplement worth a total of 2000 PLN as your ‘baby shower gift’.

Financing hobby courses

It’s not all work and no play. To help you develop your hobby, we will pay 70% of the price of hobby courses chosen by you.


Even the best of us can experience a little burnout. JohnnyBros veterans are given a two-month paid sabbatical, so they can recharge their batteries.

In-house competitions

We like the spirit of healthy competition. We organise numerous competitions for employees that offer both great fun and interesting awards.

Integration trips

Once in a while, we all need to take a break and get some new energy for work. Therefore, we appreciate the value of integration trips during which we relax, bond and build good relationships.

Tourist Fridays

We know the value of a good team. Once a month, we turn off computers early at 12 P.M. to hang out together outside the office and to get to know each other better. We end the day full of attractions with a shared lunch.

Additional rest breaks

We know the importance of regular breaks for efficiency and well-being. At JohnnyBros you get additional time for rest. Playing foosball or Frisbee, maybe walking in a park? You know best what relaxes you the most.

Delicious food and drinks

You don’t have to remember about bringing food to work. To keep your energy level high, we will give you something to eat and drink. You can choose from many kinds of sandwiches and salads as well as great coffee and tea.

Convenient office location

Our office is in the very centre of Gdańsk. Therefore, you can comfortably commute to work by SKM trains, trams, even a car. And if you prefer travelling by bike, the extensive network of cycling lanes and a covered parking make your journey fast and pleasant.

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