Kotlin-Java Full Stack Application Developer
Hover or tap a row for full statistics (EUR / month on this chart).
Salary analysis
Compared with the selected benchmark ("All roles in Akaa, Finland"), this listing's salary midpoint is about 92% lower. The offer sits below the benchmark range (€1,920–€3,200). The listed pay band (€187–€227) is tighter than the benchmark, which suggests lower salary variability. This benchmark is based on 19 comparable listings.
| Market | Lower bound (25th percentile) | Median | Upper bound (75th percentile) |
|---|---|---|---|
| All roles in Akaa, Finland | €1,920/per month | €2,480/per month | €3,200/per month |
| Pay in our data — not quoted in ad (Mid-Level) | €187/per month | €207/per month | €227/per month |
We are currently looking for four (4) Kotlin-Java Full Stack Application Developers with at least 5 years of work experience. A fluent Finnish and English is a mandatory requirement for consultant. Mandatory (Core Requirements): Development & Architecture: · Kotlin (primary focus) + Java, Spring Boot · REST/JSON and SOAP/XML APIs · Microservices (scalable, fault-tolerant) Frontend: · React · TypeScript / JavaScript Infrastructure & Cloud: · Kubernetes · AWS / cloud environments · NGINX / reverse proxy DevOps: · Git · CI/CD (Jenkins, GitHub Actions, etc.) · Bash / scripting · Ansible · Linux · Terraform / CloudFormation Data: · SQL + relational databases · Redis / in-memory data store Security: · Secure coding (e.g., VAHTI or similar guidelines) · Code reviews · SSO (SAML2, OpenID Connect) Testing: · Integration and unit testing Other: · Multi-vendor environments · Finnish + English language skills Not Mandatory (Scored / Nice to Have): Advanced Architecture & Production: · High availability / continuous production · Classified (high-security) environments Integrations & Backend: · mTLS · RabbitMQ · JWT-based APIs · Shibboleth Cloud & Operations: · Monitoring (Prometheus) · Serverless (AWS Lambda) Data: · Elasticsearch · AWS RDS / Aurora · Database migrations/conversions Testing & Quality: · End-to-end (E2E) test automation · Test-Driven Development (TDD) · Security testing (OWASP, Burp, etc.) Other: · Data migrations/conversions · Public sector systems (e.g., SÄHKE2, Information Management Act compliance) 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. Allocation: 100% Assignment start date: 26.10.2026 Assignment end date: 31.12.2027 Location: Helsinki, Finland Language: Fluent in English and Finnish, both written and spoken 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.
Job Details
Responsibilities
- Develop and architect applications using Kotlin, Java, and Spring Boot
- Implement REST/JSON and SOAP/XML APIs
- Build and maintain scalable, fault-tolerant microservices
- Develop frontend components using React, TypeScript, and JavaScript
- Manage infrastructure using Kubernetes and AWS
- Configure NGINX reverse proxies
- Implement CI/CD pipelines using Git, Jenkins, and GitHub Actions
- Perform scripting with Bash and configuration management with Ansible
- Provision infrastructure using Terraform or CloudFormation
- Manage SQL relational databases and Redis in-memory stores
- Ensure secure coding practices and perform code reviews
- Implement SSO authentication (SAML2, OpenID Connect)
- Conduct integration and unit testing
Requirements
- At least 5 years of work experience
- Fluent Finnish and English (written and spoken)
- Proficiency in Kotlin, Java, and Spring Boot
- Experience with REST/JSON and SOAP/XML APIs
- Experience with scalable and fault-tolerant microservices
- Proficiency in React, TypeScript, and JavaScript
- Experience with Kubernetes and AWS cloud environments
- Knowledge of NGINX reverse proxy
- Proficiency in Git and CI/CD (Jenkins, GitHub Actions)
- Experience with Bash scripting, Ansible, and Linux
- Experience with Terraform or CloudFormation
- Knowledge of SQL relational databases and Redis
- Experience with secure coding (VAHTI) and code reviews
- Knowledge of SSO (SAML2, OpenID Connect)
- Experience with integration and unit testing
Skills & Technologies
Benefits & Perks
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