Full-Stack Developer

Everon Oy; Finland; On-site; EUR 56,000 - 61,000; Full time

Benefits offered by this job

Edenred lunch benefit

Epassi Flex (€400/year)

Auntie service

health care package

Job summary

Lyyti is hiring two Full-Stack Developers to join our Product Team. You will work across the entire stack—frontend, backend, databases, APIs, and infrastructure—owning features end-to-end from UI to deployment.

The role offers a dynamic environment focused on AI-based features, mobile app extensions, and modernization, with offices in Turku/Helsinki and flexible remote options. You will collaborate with Designers, QA, DevOps, and Product Leads in a self-organized team.

Qualifications

• Solid full-stack experience across frontend, backend, databases, and APIs.

Responsibilities

• Work across the entire stack from UI to deployment, owning features end-to-end.
• Collaborate closely with the team to shape the scope based on current priorities.
• Adapt to different teams and projects as needed.

Skills

Full-stack experience

Modern web frameworks

Frontend

Backend

Cloud infrastructure

AI in development

English fluency

Tools

Flutter

Firebase

MariaDB

Valkey

GitHub Actions

Cypress

Jest

PHPUnit

PHPStan

Claude Code

Claude Design

Job description

Location: Turku, Helsinki or remotely with frequent office visits

Team: Product team

We are looking for two Full-Stack Developers to join our Product Team at Lyyti.

At Lyyti, the customer comes first, and this is a rule we live by in all our activities. To offer an intuitive, modern and easy-to-use SaaS product, we design and develop our software continuously. Our great product doesn't happen by magic: it is designed, built with quality in mind, tested with users, and improved over time.

Team and role

Our Product Team develops and manages the Lyyti Event Management System and the organiser and participant mobile apps that accompany it. The team consists of Designers, Software Engineers, QA Engineers, DevOps Engineers, and Product Leads, currently divided into three teams. Product Leads, together with the self-organised development teams, handle day-to-day operations. The traditional line management model has been tossed aside and replaced with a people-coach model that supports well-being and professional development.

We are currently focusing on building new AI-based features for our users, expanding our event app (mobile) features, and doing continuous, small-scale development and upkeep while modernising the more legacy parts of our codebase. In the Full-Stack Developer role, you will work across the entire stack — frontend, backend, databases, APIs, and infrastructure — taking responsibility for the whole chain from UI to deployment. You'll own features end-to-end and collaborate closely with your team. The exact scope of the role will be shaped by the team you join and what they are working on at the time.

• Mobile: Flutter, Firebase (Cloud Functions in TypeScript)
• Databases & caching: MariaDB, Valkey
• CI/CD & testing: GitHub Actions, Cypress, Jest, PHPUnit, PHPStan
• AI tooling: Claude Code and Claude Design

Why Lyyti?

Lyyti is the leading Nordic event platform, helping companies create more meaningful encounters. Our platform is trusted by brands like American Express, Warner Bros., Discovery, and Air France-KLM to power their event creation and management. Events aren't just part of our product — they're at the core of who we are.

Lyyti is a Turku-born team that dreams big, keeps work-life balance sacred, and gives you real room to grow. We're a Turku-born team and we even wrote a book about it: The Green Book of Lyyti. Our company culture isn't a poster on the wall, but instead something we actually live by. We are a Turku-born team that dreams big, keeps work-life balance sacred, and gives you real room to grow. Don't just take our word for it: we've been certified as a Future Workplace three years running.

Who you are

We are looking for someone who masters the full-stack approach, whether you have been practising it for longer or have more recently made it your way of working. You might have started as a frontend or backend developer and gradually expanded your scope. Or full-stack has simply always been your natural way of working. What matters is that you are comfortable moving across the entire stack and ready to jump into whatever needs to be done.

We are also actively using AI tooling to improve how we work. You don't need to come in as an AI expert, but we expect you to have built a solid personal foundation for using AI in your daily work, and to be actively developing it further as the field moves fast.

What you bring

• Solid full-stack experience across frontend, backend, databases, and APIs
• Proficiency in modern web frameworks
• Ability to work with legacy codebases
• Experience with test automation
• Understanding of cloud infrastructure and CI/CD pipelines
• A solid personal foundation for using AI in daily development work, and the drive to keep building on it
• Fluent written and spoken English is required (Finnish is not)

Considered a plus

• Experience with mobile app development
• Experience with our specific stack (you don’t need to tick all boxes!)
• Hands-on experience with cloud infrastructure
• Hands-on experience building AI-assisted features

What we offer you

• A full-time and permanent position
• Stability and safety of a mature SaaS product business
• Great colleagues and the opportunity to be part of our international team of Lyytians
• Modern tools and working environment
• Modern office space at the heart of Turku or Helsinki, and a possibility to work from an independent location*. We also have offices in Stockholm and Paris.
• Possibility to use our amazing HQ in Turku for your private events
• A good coverage of useful benefits: Edenred lunch benefit, Epassi Flex ( € 400/year), Auntie service, work ability insurance, broad health care package, bike benefit, etc.
• Salary range: €5000-5500/month

*We have flexible working arrangements and the possibility to work remotely, with frequent visits to the office.

Sunday, August 30, 2026.

Interested?

If you have any questions about the role, both Sanni and Lauri will be happy to answer them:

How does the process proceed?

• First round interviews with Sanni and Lauri starting in week 36 (31 August - 4 September)
• Second round technical interview with the team.
• Final interview with the People & Culture team.
• Start of employment: As soon as possible, with consideration for notice periods

Lyyti is a versatile and comprehensive event management system that enables you to create meaningful encounters through live, online, or hybrid events. Lyyti efficiently handles registration, communication, reporting, and feedback collection. Our customers include companies such as KLM and American Express, as well as ministries around the world.

We are the market leader in the Nordics and have ambitious growth targets in Europe.

Lyyti was founded in 2007, and in December 2025, we became part of SuperOffice, a leading European CRM provider based in Oslo, Norway. In 2025, our revenue was close to €9 million, and our platform was used to organise over 80,000 events, processing data for more than 26 million participants.

Lyyti’s team consists of over 50 happy professionals who genuinely appreciate their workplace and colleagues. Our offices are located in Turku, Helsinki, Stockholm, and Paris. As we continue our international growth, we focus on working as one unified team, regardless of location.

We actively invest in developing a winning company culture, and as a result, we have achieved the "Future Workplaces" certification in 2024, 2025 and 2026. If you wish to get to know our culture better, check out the Green Book of Lyyti for more information.