Overview
We are looking for Senior Fullstack Developer (.Net Developer) for our client banking sector. Consultant will develop new core functionality and perform quality defect management for a performance and reporting management tool.
Must have skills:
• Strong understanding of C# programming language and the .NET framework
• Expert in ASP.NET Core C#
• Experienced in API development
• Experience with database design and development using SQL Server
• Ability to work with and troubleshoot legacy code
• Familiarity with software development principles, including object-oriented programming
• Solid understanding of user interface design principles, including layout, typography and information architecture
• Strong understanding of HTML, CSS, and JavaScript, as well as Angular
• Has a focus on improving user experience and user interface through design elements
• Understands and follows existing design guidelines
• Understands that simplicity is key, and to create a natural flow across the app is the end goal
Nice to have skills:
• Experience with version control systems, such as Git
• Ability to write clear, maintainable, and efficient code
• Understanding of web application security best practices
• Understanding of cloud computing concepts
• Experience with testing frameworks
• Is comfortable with designing a navigational structure with an existing CSS framework (like Bootstrap) not to reinvent the wheel
• Experience with animation and interaction design
• Understanding of accessibility standards and guidelines
• Experience with transitioning legacy apps into modern technologies
Coding languages and Tools:
• Visual Studio Professional (or Visual Studio Code)
• HTML, CSS, JavaScript (Bootstrap and other CSS/JS frameworks/libraries)
• SOAP UI / Swagger UI / Postman
• Bitbucket
• Jenkins
• SQL Server Management Studio
• ASP.NET Core (C#)
• Transact-SQL
• Angular
• HTML, CSS, JavaScript
• CSS frameworks as Bootstrap (or similar)
Allocation: 100%
Assignment start date: Asap
Duration: 30.6.2025
Location: Helsinki
Language: Fluent in English, 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.
Source: Job Market Finland’s customer information system
