Middle .NET Software Engineer

About us :

Techstack is a technology product engineering company that sets an example for high development standards in the IT industry. We empower each team member to influence the development of the product, company, and processes.

About the product :

We’re working with a healthcare company based in the US on a solution for remote cardiac monitoring.

The product combines medical devices and software to collect, process, analyze, and report ECG data. It helps healthcare providers monitor patients remotely and integrate cardiac monitoring into their clinical workflows.
The project covers the software behind the solution, including backend services, APIs, cloud-based components, and integrations built with C#, .NET 8, ASP.NET Core, and AWS.

Your team :

You’ll work as part of a cross-functional team with .NET and frontend engineers, QA specialists, and other project roles. The team works closely with the client, with direct communication between Techstack specialists and the client’s technical stakeholders.

Your responsibilities:

• Develop and maintain backend functionality using C# and .NET
• Design and implement REST APIs and integrations
• Build and maintain cloud-based application components using AWS
• Write clean, reliable, and testable code
• Create and maintain unit and integration tests
• Participate in code reviews and technical discussions
• Investigate and resolve defects and production issues
• Participate in requirements analysis, task estimation, and solution design
• Contribute to architectural improvements, code quality, security, and development practices
• Prepare and maintain technical documentation and follow security and privacy requirements when working with healthcare data

It's about you:

• 3+ years of commercial software development experience
• Strong knowledge of C# and .NET
• Hands-on experience with ASP.NET Core, .NET 8, and REST APIs
• Good understanding of OOP, SOLID principles, and common design patterns
• Experience with relational and/or NoSQL databases
• Experience with AWS or another major cloud platform
• Understanding of microservices and/or serverless architecture
• Experience with Git and CI/CD
• Experience writing unit and integration tests
• Ability to analyze requirements, estimate tasks, and communicate technical risks
• English — B2 or higher

How to join:

• Pre-screening with a recruiter
• Expert review of your resume
• English check
• Interview with our experts
• Customer interview

Culture:

At Techstack, we care about how we build products — not only about the result, but also about the quality of the engineering process and the way we work together.

We encourage people to keep learning, share what they know, and take ownership of their work.

Tech Guilds — communities where specialists share knowledge, discuss technical solutions and approaches, and keep up with industry trends.

Meetups and knowledge sharing — opportunities to share your experience with colleagues and the wider tech community.

Mentoring and leadership — opportunities to grow as a mentor, technical lead, or take on other roles where you can support others and share your expertise.

We believe that good products come from people who care about what they build, keep developing their expertise, and are comfortable both challenging ideas and being challenged.

What we have for you:

• Flexible work format — remote work or one of our hubs in Kyiv, Lviv, Kharkiv, or Wrocław, plus flexible working hours.
• Professional growth — Tech Guilds, mentoring, meetups, knowledge sharing, and other development opportunities.
• Education support — 50% compensation for professional courses, trainings, webinars, and certifications.
• English — free General English, Business English, and speaking clubs.
• Time off — 20 paid days off and 7 paid sick days per year, plus additional days off.
• Support — legal and accounting support.
• Community — online and offline team activities, professional events, and appreciation gifts.

See yourself in this role? Send us your resume and let’s start the conversation!