Senior Backend Developers

Senior - Full time
  • .NET

Client : Mash

Industry : Financial

Mash is a rapidly growing international financial technology (Fintech) group headquartered in Helsinki, Finland and has offices in Stockholm, Sweden, Warsaw, Poland, Luxembourg and Spain. Mash has developed the most efficient financing business models and systems in the market and is the leading service provider in key European markets. Mash’s fully automated and internationally scalable cloud services provide real-time credit solutions for small-to-medium size businesses and consumers.

Lisbon, Portugal


Participating in Planning meetings and creating Sprint plans and objectives
Write a high quality, testable code following clean code principles
Developing and committing to Sprint plans and objectives
Working with the Product Owner and stakeholders to confirm that the code and acceptance tests reflect the desired functionality; writing the code
Creating unit tests and automated acceptance tests
Checking new code into the shared source code repository
Pairing to write and review code and automated acceptance test cases
Executing acceptance tests and maintaining the test cases in a shared repository
Provide third line support to customers and integration support to partners


Software development experience;
Relevant experience working with C# and ASP.NET technologies throughout the design, development and release phases of software development
Good experience in web and REST services
Experience working with databases, preferably MSSQL
Well versed in design patterns
Good understanding of MVC
Experience with source control, build processes, and continuous delivery
Knowledge in modern software architecture evolved using CI/CD, DevOps and Scalability
Experience developing applications using public cloud solutions AWS/Azure
Worked in an agile SCRUM development environment
Knowledge of analysis, requirements gathering and formal walk-through techniques
Excellent communication skills with ability to articulate complex technical concepts to business leaders and execs.
Natural troubleshooter with logical and analytic approach on things
Dynamic personality who feels at home in a fast-moving and fast-growing company
Team player with great interpersonal skills and high integrity level

Good to have:
Experience designing APIs
Experience in .NET Core is a plus
Experience in HTML and CSS3 is desirable
Experience in JavaScript frameworks such as React


You have a minimum of BSc in Computer Science, Software Engineering, IT or relevant


Initial travel to HQ in Helsinki to get introduced to the existing applications and your team members.