[RTC] Senior Software Engineer (.NET)

Software Mind develops solutions that make an impact for companies around the globe. Tech giants & unicorns, transformative projects, emerging technologies and limitless opportunities - these are a few words that describe an average day for us. Building cross-functional engineering teams that take ownership and crave more means we’re always on the lookout for talented people who bring passion and creativity to every project. Our culture embraces openness, acts with respect, shows grit & guts and combines employment with enjoyment.

Project - the aim you’ll have

You will join an agile, international team of experienced developers and testers (from Poland and the UK) working on a strategic transformation of the IT ecosystem for a leading travel industry company.

The main goal?

Designing and building modern, scalable solutions from scratch - replacing outdated systems with new platforms built using best engineering practices.

As part of the team, you’ll have a real opportunity to:

• co-create new solutions and architecture
• develop Proof of Concepts (PoCs) and test ideas
• drive technical discussions and decisions
• collaborate with other senior and principal engineers
• and leave your mark on a platform that will serve millions of users

The work is organized in 4-5 agile teams, each focused on a specific product area - allowing you to take ownership while collaborating closely across teams.

This is not about maintaining legacy systems - this is about building something new.

Role - how you’ll contribute

• Designing and building new features and solutions from the ground up
• Creating Proof of Concepts (PoCs), technical spikes, and validating ideas
• Replacing old systems with new architecture - not maintaining legacy code
• Performing code reviews and sharing best practices
• Participating in shaping product architecture and technical direction
• Collaborating with other senior/principal developers, testers, BAs, Product Owners, and Scrum Masters
• Supporting the team with your knowledge, experience, and technical leadership

Expectations - the experience you need

• At least 5 years of commercial experience in C# and .NET Core
• Experience with AWS DevOps tools and CI/CD processes
• Solid understanding of software design principles, patterns (e.g., SOLID, DDD), and clean code practices
• Experience creating tests (unit, integration, ideally also component or contract tests)
• Practical experience with databases (SQL, MongoDB, NHibernate, Entity Framework, Azure Storage)
• Real experience with AI tools

Additional skills - the edge you have

• Knowledge of front-end technologies: Angular (12+), JavaScript, TypeScript, CSS, Git - although in the project you’ll be working closely with a dedicated front-end developer
• Experience designing new systems or working on greenfield projects
• Familiarity with event-driven architecture and distributed systems
• Knowledge of cloud solutions, especially AWS and Azure
• Willingness to share knowledge, mentor other developers, and actively participate in technical discussions
• Someone who isn't afraid to admit they don't know something but can work with the team to find a solution

What we offer:

• Flexible and remote cooperation options
• International projects with leading global clients
• Travels related to international projects
• Non-corporate atmosphere
• Access* to language classes
• Access* to knowledge-sharing initiatives
• Access* to private healthcare and life insurance
• Access* to multisport card

*The availability and terms of individual benefits may vary depending on the chosen form of cooperation.