Are you someone who wants to shape how integrations are done, not just follow a set script? Are you ready to take ownership of complex integrations, work with the latest technologies, and see your expertise make everyday work smoother for hundreds of colleagues and customers? If you enjoy tackling complex challenges and want to help develop a modern integration environment, you might be the Senior Integration Developer we're looking for.

What is it all about

At Staria, we're scaling up our integration capability and looking for a Senior Integration Developer to join our Data Solutions team.

We are renewing our integration architecture and rolling out a centralized iPaaS platform. We're building robust, future-proof integrations between our business-critical systems - from ERP to payroll and BI. In this role, you'll design, develop, and maintain these integrations, focusing on API-based solutions, data transformation, and reliability.

How you'll make a difference

Most of your work will focus on building new integrations and developing our integration landscape with the Frends iPaaS platform. During your first year, you'll also take part in migrating some legacy solutions to the new platform, ensuring a smooth transition for our business. You'll get to design and build integration flows hands-on and solve both technical and business challenges along the way. On a typical day, you might:

Design and implement integrations using REST APIs, JSON, XML, and LINQ
Handle error management, monitoring, and troubleshooting in production
Migrate legacy integrations to the new platform, ensuring business continuity
Collaborate with architects, system owners, and other developers, while also enjoying a high degree of independence
Document your work and help develop best practices
Take part in shaping our integration architecture and ways of working

You'll have a real impact on how integrations are built at Staria from the ground up. You'll see the results of your work quickly and get direct feedback from users and colleagues.

The practical stuff

We hope you're based in Finland, ideally in the Helsinki area and able to visit the office weekly. However, with the right candidate we're flexible: you can work remotely from anywhere in Finland, as long as you can visit Helsinki at least once a month. Staria's hybrid work model offers the best of both worlds: modern office in the heart of Helsinki, combined with the flexibility to work remotely.

Our salary range for this role is €5000-7000/month, depending on your background. The holiday bonus is distributed evenly across your monthly pay, so it's part of your regular salary.

Keys to success in this role

This role is a great fit for you if you bring:

Strong hands-on experience with Frends iPaaS or a similar integration platform

Solid skills in REST, JSON, XML, XSLT, SQL, and C#/.NET (LINQ)

Understanding of API architectures and API management

Experience with Git and modern development practices

Proactive and independent approach, comfortable navigating ambiguity and change

Great communication and collaboration skills, with the ability to build relationships across teams

Willingness to challenge the status quo and drive improvements

Fluent English skills

Experience with Azure (Functions, Service Bus, Key Vault), CI/CD, GraphQL, custom Frends tasks in C# / .NET, or high-volume integrations is a plus.

Why join us?

Here, growth isn't just a buzzword. You'll get real opportunities to develop your skills, take ownership, and leave your mark on how we work. You'll help build something new, see your impact and have a say in how things are done. We trust you to know what works.

Modern tech stack: Frends iPaaS, Azure, event-driven integrations

Product environment: you'll see projects through and build lasting solutions

Our hierarchy is low and the atmosphere is relaxed. We are serious about growth, but never too serious at work. Bring your whole self - personality, quirks, and all.

Flexibility is part of our DNA. In our hybrid model you can work from home, our central Helsinki office, or even abroad from time to time.

We believe in genuine connections. Regular team days, office breakfasts, and events keep our culture strong, even when everyone's not in the same place.

We're proud of our Great Workplace certification, because it's based on what matters most: strong teamwork, sense of purpose, managers who truly listen, and a culture where people want to stick around.

We're truly international, with projects and colleagues across borders. You'll get to collaborate with experts from different countries and backgrounds.

You'll have the chance to grow and develop your career in various directions. We support your professional development and encourage you to seize new opportunities as we expand internationally.

We're growing and our finances are solid. You can focus on your work without worrying about the ground shifting under your feet.

You'll love our Helsinki HQ: rooftop views, quality coffee, quiet spaces for focus, and a welcoming crew always ready for a chat or lunch break.

You'll get benefits that make everyday life smoother: lunch, phone, and recreational perks are all part of the deal.

Read more about life at Staria here.

Got interested?

Send us your CV or LinkedIn profile and answer a few short questions by March 22, 2026. Cover letter is not needed. We review applications throughout the application period and are ready to move quickly if we find the right candidate.

If you have any questions about the position, our hiring manager Pasi Lehtinen, would be happy to provide more information. You can reach Pasi at +358 40 865 2687 on 4.3. at 13-14 and 9.3. at 10-11.

For questions related to our recruitment process, please send an email to recruitment@staria.com. Please note that for data protection reasons, we only accept applications submitted through our recruitment system.

At Staria, we believe that everyone brings something unique to the table. We appreciate diversity and are committed to creating a workplace where every employee feels valued. We warmly invite candidates from all backgrounds and experiences to apply and join our team. We look forward to hearing from you!

Wondering what happens after you apply? Check out our recruitment journey here!

Staria empowers growth companies with Global Accounting Services, ERP Consulting, and BI & Planning Solutions. We are dedicated to supporting our customers' growth through our expert advisory services and tailored solutions. As the only company in Europe capable of delivering financial services and solutions to over 40 countries with a single dedicated team, we pride ourselves on our unique position in the market. With a team of over 550 professionals spanning 7 countries, we embody Staria's values of Collaboration, Courage & Commitment. Join us in shaping the future of finance for growth companies.

Staria Oyj

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