Senior Software Developer
About this role
Kultakiertue is a Finnish service company operating in Nordics, Europe and the USA, running entirely on custom-built software.
Are you looking for a responsible role in a fast-growing Helsinki-based scale-up with strong multinational business and proven growth? Do you have solid experience in software development, and do you take security just as seriously?
How does a key role in a rapidly growing Finnish success story sound? At Kultakiertue, we are the market leader and pioneer in the purchasing and evaluation of precious metals. We already operate in the Nordics, Europe and the USA, and we keep expanding into new markets. More than 100 professionals work within our unique service concept, and our growth is only accelerating. Now is the perfect time to join us on this journey.
We're looking for a hands-on Senior Developer to build and scale our internal software ecosystem together with our in-house engineering team, using modern frameworks and tools like SvelteKit, Vercel, Supabase and PostgreSQL.
Our platform runs the whole business end to end: online booking for customers, a field application for our purchasing agents, and admin tooling for payments, controlling and compliance. Because we handle customer data, banking and regulatory reporting to authorities in multiple countries, security and data protection are not an afterthought for us. They are a core feature of the product, and you'll help keep it that way as we expand into new markets.
Responsibilities
- Develop new features and integrations across our booking, field-agent and admin applications
- Roll out our services in new countries, including country-specific compliance and reporting requirements
- Own security in day-to-day development: access control, secure handling of personal and financial data, and safe integration patterns
- Contribute to secure architecture and technology decisions, including threat modeling, testing, code review, and dependency and secrets hygiene
- Build and maintain int