About this role
Primary location:
HELSINKISokos Hotels is the hotel chain operated by S Group, creating memorable stays and meaningful experiences for travelers across Finland. Our hotels operate in key locations nationwide and serve a wide range of guests through physical locations and digital services.
At Sokos Hotels digital development, you’ll have the opportunity to make a real impact on how guests experience travel, accommodation, and service. Our team builds the digital experience for our hotel customers, covering our website, our app as well as the self-service kiosk.
Now is your chance to join our journey, learn from experienced professionals, and grow with us as a Trainee!
We’re looking for a Software Engineer Trainee to join the Sokos Hotels team in Helsinki for a fixed-term role from June 1st to September 11th. The role is designed as a starting point for an early career software engineer, with the aim of continuing in a junior role after the trainee period.
Sokos Hotels is part of the SOK Digital Development community, where we develop web services and apps for the whole S Group, digitalising the S Group services. Your future team includes engineers, designers, and business, all working together as a team. This is a great chance to learn from experienced professionals and start your career as software engineer. In our hybrid working model, the team works at least two days a week at our Ässäkeskus office, however trainees and their mentors typically meet at the office even more.
About the job
As a trainee, you’ll step into real product development from day one, owning features, improving quality, and learning by building for thousands of guests together with your team.
You’ll have the opportunity to work hands-on on the Sokos Hotels mobile app and other parts of the digital hotel experience, with responsibilities shaped by your strengths and interests. A key focus of the role is mobile app development, working with React Native, TypeScript, and GraphQL as part of a modern, productiongrade application used by hundreds of thousands of customers.
Depending on your interests, you can also expand your scope beyond mobile development. You may contribute to frontend development using React and TypeScript, or explore backend development, where we build services using cloudnative architectures on AWS. There is also an opportunity to grow your skills in Go (Golang) and backend technologies as part of the team’s development work.
Throughout the summer, you’ll work side by side with experienced engineers who will mentor you, pair program with you, review your code, and hands-on guidance to help you grow as a software developer.
Examples of what we've been working on lately with Sokos Hotels app:
- Mobile key
- Hotel check-in
- Reservation payments and payment handling
- Self-service kiosk
- Business traveler program
You are curious and analytical, and you communicate effectively in English. You love to build products and solve problems. You see software engineering as a team sport. Working with others is your preferred way to get things done. As our Trainee we expect you to be approaching the end of your engineering studies, and through that a basic understanding of software engineering. While we don’t require prior work experience from the field, all experience in coding counts as your advantage – especially experience in mobile React Native or experience in backend development in the AWS environment.
What are we looking for?
You’re curious, analytical, and comfortable communicating in English. You enjoy building products, solving problems, and learning through collaboration. You see software engineering as a team sport and prefer working together to create great products.
You’re likely approaching the end of your engineering studies and have a basic understanding of software engineering principles. We’re looking for trainees who are interested in continuing their journey with us as Junior Software Engineer after the summer, based on performance and mutual fit.
While prior professional experience isn’t required, any hands-on coding experience is a plus — especially experience in mobile development with React Native or backend development in an AWS environment. Above all, you’re motivated to learn, grow, and take your first steps towards a longer-term role as a software professional.
What we offer to you
- An opportunity to gain know-how and technical competence in wide-ranging technology domains (like web, mobile, and cloud) as well as business domains (restaurants, online retail, and service stations), a lot of diverse growth and job opportunities.
- Opportunity to learn from talented colleagues.
- Ownership; You’re creating services directly for the end-users. You’re not visiting a project; you own the product together with your team.
- Workplace democracy. Our ways of working are not set in stone. Together we’ll continuously improve the ways of developing products and services.
- An opportunity to improve and influence the daily lives of S Group’s employees and millions of people.
- A stable and flexible working environment based on cooperative values and principles, the possibility of choosing your daily work rhythm and location.
- Influence and responsibility. Our engineers have a lot of freedom in their work, but we also live with their solutions, and so do millions of users too.
Also:
- Great work is rewarded, and all our employees are included in a performance-based bonus system.
- You will have access to Finland’s most extensive employee benefits, which means discounts on groceries, restaurants, hotels, electronics, cosmetics, rainwear, home appliances, or even car washing. You can read more about our benefits here.
- The S Group is Finland’s largest private employer, so opportunities never run out. Our career paths are often long, sometimes winding, but always full of possibilities.
- We are safe, stable and Finnish cooperative group. Most of our tax revenue stays in the local area, as does the value generated through procurement and construction. The significant impact of SOK and the entire S Group brings meaningfulness to everyday work.
Employee satisfaction is important to us, and according to our employee engagement
survey, as many as 86% of our employees would recommend us as an employer. We
are also one of the most attractive employers among professionals in the commercial
sector (Universum, 2025). Our work is guided by S Group’s shared leadership
promises: I dare, I appreciate, and I deliver.
At S Group, we are committed to fostering a diverse and non-discriminatory working
environment where the unique backgrounds, skills, and perspectives of all our
employees are respected and valued.
Interested? We’ll be happy to hear from you!
Please send us your CV and an application highlighting your related skills by
8.2.2026 at the latest. We will actively review applications and invite the most
suitable candidates for further discussion. We will notify all applicants about moving
forward within two weeks after the deadline.
Our interview process is both respectful and comprehensive. You’ll meet our
recruiter, hiring manager and some teammates. We’ll discuss technical things as well
as softer skills, validating your technical expertise, and performing a suitability
assessment. The aim is to ensure we can offer you what you are looking for and to
make sure you’re the right person for the job. Despite the outcome, we strive to make
the process a positive one.
#SOK #SOKDigitalTalent
Other facts
About S-ryhmä / S Group
S-ryhmä on suomalainen vähittäiskaupan ja palvelualan yritysverkosto, jolla on Suomessa yli 1 800 toimipaikkaa. S-ryhmä muodostuu 19 itsenäisestä alueosuuskaupasta ja niiden omistamasta Suomen Osuuskauppojen Keskuskunnasta (SOK) tytäryhtiöineen. Alueellisten ja valtakunnallisten tytäryhtiöidensä lisäksi SOK harjoittaa Baltian alueella marketkauppaa sekä matkailu- ja ravitsemiskauppaa. Lisäksi S-ryhmään kuuluu kuusi paikallisosuuskauppaa.
S-ryhmä tarjoaa marketkaupan, tavaratalo- ja erikoisliikekaupan, liikennemyymälä- ja polttonestekaupan, matkailu- ja ravitsemiskaupan sekä rautakaupan palveluita. Lisäksi autokaupan ja maatalouskaupan toimipaikkoja löytyy joidenkin osuuskauppojen alueelta, ja S-Pankki tarjoaa kaikille asiakasomistajille kattavat pankkipalvelut.
Osuuskaupat ovat osuustoiminnallisia yrityksiä. Niiden omistajat ovat myös asiakkaita, S-ryhmän kielellä asiakasomistajia. S-ryhmän toiminnan tarkoituksena on tuottaa kilpailukykyisiä palveluja ja etuja asiakasomistajille kannattavasti.
-----
S Group is a Finnish network of companies operating in the retail and service sectors. It has more than 1,800 outlets in Finland. S Group consists of nineteen independent regional and six local cooperatives and SOK Corporation, which is owned by the cooperatives, and its subsidiaries. Cooperatives are enterprises operating in accordance with the principles of cooperative activities. Their owners are also their customers. The owners of S Group are called co-op members.
What you'll do
- The trainee will step into real product development from day one, owning features, improving quality, and learning by building for thousands of guests, with a key focus on mobile app development using React Native, TypeScript, and GraphQL.
Ready to join S-ryhmä / S Group?
Take the next step in your career journey