Senior Backend Engineer (C# & AWS)

O projekcie: We are far from your average bank 🚀 Northmill is a Swedish technology bank that develops straightforward and secure financial services for customers. Our mission is improve people’s financial lives through technology, innovation and lots of passion. We use the latest technology to develop safe, smart, and user-friendly products. We are a challenging profitable product-company where technology rules. We are a 100% cloud company ☁️ What's in it for you? You should choose Northmill if you want to take part in a unique journey that will give you the opportunity to develop yourself and a chance to make a change. If you are the kind of person that dares to get out of your comfort zone and explore, Northmill is perfect for you. The Team Development and product team is located in Poland and Sweden. And now we plan to extend our dev team. Be inspired by what we offer: - Work on projects (including greenfield ones) within a team of top experts — the best in Europe 💪- Real impact on company products and culture, with small project teams (max. 9 members)- A non-corporate atmosphere with a strong focus on innovation, continuous improvement, teamwork, and a data-driven approach- Flexible working hours in a hybrid model — office in Katowice city center or remote work if you live outside Silesia region- Support for your professional growth, including access to training, workshops, and industry conferences- Benefits package: private medical care, life insurance, Multisport (including a partially funded family card), library, concierge service- Internal conferences, trainings, and events: Northcon (annual company conference in great locations like Spain, Austria, Sweden, Croatia), Northchill, Study Group, Summer Party Wymagania: We want to create a different kind of banking and shopping experience. Northmill was founded in 2006 and the main office is in Stockholm and Poland Engineering Center site is located in Katowice. Grab this opportunity to be a part of us and our journey! Required qualifications: - 5+ year of commercial experience in creating web applications - Solid experience developing applications using C#. - Solid experience in working with SQL databases. - Willingness and interest to collaborate and work in a team. - Poland as country of residence and Polish citizenship or EU country citizenship Do you have less experience? No worries! We are also looking for Mid positions Preferred qualifications: - Experience with software engineering best practices (code reviews, continuous integration, continuous deployment, testing). - Exposure to Agile development methodologies. - Familiar with Web services/web API. - Familiar with AWS platform - Experience in working with NoSQL databases Codzienne zadania: - As a Senior Backend Engineer, you will take part in the process of the design and development of modern financial applications. - You will develop advanced monitoring systems used in running operations in the AWS cloud environments. - You will have an impact on our applications by working closely with businesses and clients who use our banking products. - You will work with: C#, .NET, AWS ( incl. fargate, lambda, S3, event bridge), Jira, Confluence,Git, Rider/Visual Studio. - You will use DDD and CQRS. - You will work using modern AI dev tools