Full-Stack Senior Backend & Database Engineer

My Instore Radio; Billund Kommune; On-site; DKK 900,000 - 1,200,000; Full time

Job summary

My Instore Radio in Billund, Denmark, is seeking a Senior Backend & Database Engineer to design, build, and optimize the data backbone powering a global SaaS platform. Hybrid/Remote by agreement.

You will work on SQL Server/Azure SQL, T-SQL, data modelling, and backend services in .NET/C#, delivering scalable APIs and high-availability solutions.

Join a small, skilled team focused on AI-assisted engineering and data integrity across 50+ countries.

Qualifications

• Extensive experience with Microsoft SQL Server and Azure SQL.
• Strong T-SQL skills for stored procedures and functions.
• Proven backend design, APIs, and data modelling capabilities.

Responsibilities

• Design, build, and optimize the backend architecture for a global SaaS platform.
• Develop database structures, queries, and data models to support scale.
• Collaborate with AI-enabled software development while ensuring reliability.
• Improve performance, scalability, and data integrity across regions.

Skills

SQL Server

Azure SQL

T-SQL

Backend .NET/C#

APIs

Data modelling

Performance tuning

Query optimization

High availability

Systems integration

Job description

Full-Stack Senior Backend & Database Engineer

Location: Billund, Denmark (Hybrid / Remote by agreement)

Build the Foundation of a Global SaaS Platform

Every feature we build depends on one thing:

A fast, scalable, reliable data platform.

We are looking for an experienced Senior Backend & Database Engineer to help design, build, and optimize the backend architecture powering our global SaaS platform.

Our customers rely on our platform every day across more than 50 countries.

Performance, scalability, and data integrity matter.

While AI has transformed database development, we believe exceptional database engineering still depends on experience, critical thinking, and sound engineering judgment.

That is exactly what we are looking for.

What You will Build

You will be responsible for evolving the technical foundation of our platform by working with:

• SQL Server / Azure SQL Server
• Database development using T-SQL
• Data modelling
• Backend development (.NET / C#)
• REST APIs
• Integrations with external systems
• Performance optimization
• Query tuning
• Scalability
• High-availability solutions

You will work closely with the rest of our team building the next generation of our platform.

Who We are Looking For

You have:

• Extensive experience with Microsoft SQL Server and Microsoft Azure SQL
• Extensive experience with T-SQL to develop SQL stored procedures and SQL functions
• Strong database architecture and design skills
• Deep understanding of relational data modelling
• Experience developing backend systems in .NET / C#
• Experience building APIs
• Experience optimizing high-performance SQL environments
• Experience integrating third-party systems
• Strong analytical and problem-solving skills

Most importantly, you enjoy solving complex technical challenges.

AI-First Engineering - with Human Responsibility

We believe AI makes experienced database engineers even more effective.

We actively encourage AI to assist with:

• SQL development
• Query optimization
• Execution plan analysis
• Index recommendations
• Documentation
• RefactoringPerformance analysis
• Automation

But AI never replaces engineering responsibility.

Every schema change, migration, optimization, and deployment is reviewed and validated by an experienced engineer before reaching production.

Our customers trust us with their data.

Protecting that trust comes first.

You’ll Probably Love Working Here If You…

• Enjoy solving difficult backend problems.
• Love optimizing performance.
• Care deeply about data quality.
• Enjoy working with AI every day.
• Like learning new technologies.
• Believe AI should make engineers better - not replace them.

This Probably Isn’t the Right Job If You…

• Prefer repetitive work over solving new problems.
• Think AI has no place in software engineering.
• Want to avoid learning new technologies.
• Are not interested in modern engineering practices.

Focus on Engineering

You will not spend your days maintaining Azure infrastructure or renewing certificates.

Cloud Platform Engineer

Our dedicated Cloud Platform Engineer handles:

• Infrastructure
• Cloud services
• Monitoring
• Operations
• Security updates
• Certificates

This allows you to focus on designing scalable backend systems and building world‑class software.

Why Join My Instore Radio?

You will become part of a small, highly skilled engineering team with global ambitions.

Your work will directly influence a platform used by thousands of businesses across more than 50 countries, and you will help shape how AI is applied to modern software engineering.

If you are passionate about backend development, databases, and building the future with AI, we would love to hear from you.

Join Our AI-First Engineering Team

Together, we are building software differently.

We do not want engineers who simply use AI.

We want engineers who are helping define what software development looks like in the AI era.

If that sounds like you, we would love to hear from you.