Application Developer - Senior - Lokki Henkilöstöpalvelut Oy

For our client were looking for an Application Developer. Assignment description: Developing and maintaining backend services in production environments. Designing, developing, and/or maintaining services in cloud-based environments. Working with PostgreSQL databases. Developing browser-based web user interfaces. Implementing integrations and data transfer solutions as part of information system development. Seniority level: 3/5. Required Experience Mandatory: PostgreSQL, Cloud, Backend development, AWS. Answer these questions separately in a few sentences and attach them to your application! (Mandatory!) - Do you have at least 3 years of hands-on experience developing and maintaining backend services in production environments? - Have you designed, developed, or maintained applications and services running in AWS cloud environments? - Do you have practical experience working with PostgreSQL databases, including data modeling, querying, and performance optimization? - Have you developed and maintained integrations or data transfer solutions between information systems? - Do you have experience developing browser-based web user interfaces as part of full-stack or application development projects? Please apply with your CV in English, clearly showing how you match the requirements and answer to the questions above. The client is continously reviewing candidates and we ask you to submit your application as soon as possible. Start date: 1.11.2026. End date: 31.12.2029 with strong possibility for extension. Scope/hours per week: 100% / 40h. Location: Finland. Remote work: Fully remote. Language: Finnish & English. We offer you: We offer a versatile assignment where every day is different and interesting. We also offer a very competitive salary and good employee benefits. Are you interested in becoming a part of our dynamic team? The position will be filled as soon as a suitable person is found, so please be quick and submit your application! Please include your salary expectation in your application. For more information, contact Kimmo Kärsämä, tel. 050 412 7500, kimmo.karsama@lokki.fi. Explore Lokki, through our blog and website: https://www.lokki.fi/. Lokki Henkilöstöpalvelut Oy (Finnish for Seagull Recruitment Services) has been active in providing recruitment services since 2005 and we belong to The Private Employment Agencies Association HPL. Our vision is to provide the best customer experience with our reliable, humane and effortless service around Finland. Our most important asset is a person who, as we know, thrives in a reliable and supportive atmosphere. At Loki you will be supported by your own human resources consultant throughout your employment relationship. At Lokki, we believe in a partnership achieved as a result of flexible service. Explore us and our vacancies: https://www.lokki.fi/. You can also find us on Facebook and Instagram.