[RTC] Senior Software Engineer (.NET)

Software Mind; Kraków; Hybrid; PLN 240,000 - 360,000; Full time

Benefits offered by this job

Flexible and remote cooperation

International projects with leading全球•

Travels related to international proj

Non-corporate atmosphere

Access to language classes

Access to knowledge-sharing

Access to private healthcare and life

Access to multisport card

Job summary

Software Mind is seeking an experienced Senior .NET Engineer to join an agile, international team working on transforming the IT ecosystem for a leading travel industry client. You will design and build modern, scalable solutions from scratch, replacing legacy systems with new architectures and best practices.

You will co-create architecture, drive PoCs, and lead technical discussions with senior engineers across Poland and the UK.

Qualifications

• At least 5 years of commercial experience in C# and .NET Core.

Responsibilities

• 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

Skills

C#

.NET Core

AWS DevOps

CI/CD

SOLID

DDD

Unit tests

MongoDB

SQL

Entity Framework

NHibernate

Azure Storage

AI tools

Tools

NHibernate

Entity Framework

MongoDB

Azure Storage

AWS DevOps tools

Job description

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.

Job Description

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

  Qualifications

  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

  • 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

  Additional Information

  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.

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