We are Telness Tech, a rapidly emerging startup/scaleup in the teltech space. Since our launch in 2021, our SaaS solution has provided the infrastructure, experience, and expertise that telecom companies need to revolutionize the consumer experience. Our cutting-edge technology removes the complexity and expense from the equation, leaving our customers free to make telecom a joyful experience.

As we enter a phase of international growth, with customers across the Nordics, USA, and Europe, we are looking for a Senior Software Engineer for our Calling Team to help us become the global leader in #teltech!

About the role

You will be part of Team Calling, a cross-functional team of skilled engineers responsible for our call-handling functionalities, including switchboards, desktop softphones, mobile apps, and related infrastructure.

Our backend is built in Golang and runs in AWS using Kubernetes. Communication between backend services uses gRPC, and the front end uses React. We use GraphQL and REST and primarily use PostgreSQL databases with event sourcing, supplemented by ClickHouse for specific use cases.

As we are still in the early stages of building the platform, you will play a crucial role in shaping, designing, and building foundational components. As the company expands, you will help us with new interesting challenges, scaling our platform from tens of thousands of users to hundreds and millions of users.

About you

You are an experienced Sr. Software Engineer who has probably worked at several companies, including at least one startup, and growing with them from an early stage. You have experience working with Real-time communication/SIP in a full-stack role and are comfortable diving into occasional front-end work with React. You are excited about joining a startup journey where you will shape both product and technology while working in a small, high-autonomy team.

What we look for

• 5+ years as a backend/full-stack engineer in a modern tech environment, focusing on real-time communication solutions/SIP (Soft Phones, streaming, etc).
• Experience working with Go (Golang) and SQL (bonus for GraphQL, React, and Typescript).
• Ability to collaborate effectively and solve complex technical problems as a team.
• Passion for technology and excitement for the challenges of continuously adapting technology and working methods to support our scaling journey.
• Take ownership of your growth and support the development of others, eager to learn and share knowledge.
• Drives technical and process improvements, actively seeking ways to enhance technology and workflows, with a motivation to implement positive changes for both the team and the company.
• Autonomous, self-motivated, likes new challenges and takes responsibility.
• Excellent verbal and written communication skills, with high proficiency in English.

What we offer

• Be part of an exciting startup journey with strong funding and international expansion.
• Play an active role in building one of the telecom industry’s most innovative companies.
• A great team—our main USP. We genuinely care about each other and our customers.
• A proven product and business model ready to be refined and scaled globally.
• The chance to work with an innovative, highly regarded product that disrupts the industry.
• A high-trust, high-autonomy environment where you’ll be encouraged to take ownership and explore growth opportunities—for Telness Tech and your  development.
• A friendly, positive, and supportive workplace that fosters collaboration and constructive challenge.
• Free daily breakfast, regular "Friday" AWs, and fun activities!
• Hybrid work setup with an office in central Stockholm.

Does this sound like you? Apply today!

At this time, we are unable to support work permits or relocation.