.NET Full-stack Developer

Smartoptics; Stockholms kommun; Hybrid; SEK 500,000 - 700,000; Full time

Benefits offered by this job

Health insurance

Pension

Bonus scheme

6 weeks vacation

Flexible working hours

Job summary

Smartoptics is looking for a .NET Full-stack Developer to join their R&D team in Kista, Stockholm. You will design and implement robust solutions that align with Smartoptics' core values. The ideal candidate has over five years of experience in C# .NET development, with skills in cross-platform applications and CI/CD pipelines. Benefits include health insurance, pensions, and flexible hours. Applicants must have a Swedish/EU work permit and experience in modern frameworks like React. No relocation support is provided.

Qualifications

• 5+ years of professional experience as a Full-Stack Engineer.
• Strong proficiency in modern .NET (preferably .NET 8 or newer).
• Excellent communication and collaboration abilities.

Responsibilities

• Architect and build desktop and web applications using modern frameworks.
• Ensure applications are optimized for cross-platform use.
• Drive best practices in coding, testing, and DevOps.

Skills

C# .NET development

Cross-platform development

Problem-solving skills

Communication skills in English and Swedish

Education

Relevant degree in software development

Tools

.NET 8

React

Docker

Kubernetes

Azure

Job description

The role of the .NET Full-stack Developer is to design and implement high-quality solutions that power the future of Smartoptics’ products, while representing our core values of innovation, reliability, and openness.

Introduction

Smartoptics provides innovative optical networking solutions for a new era of open networking. We focus on solving network challenges and increasing the competitiveness of our customers. Our customer base includes cable and telecom operators, cloud providers, Internet exchanges, governments, and thousands of enterprises.

The candidate will be part ofthe agile R&D team developing application software for internal and external use.

Position summary

For our Kista office, we are looking for a SoftwareEngineerto join our R&D team. You will work withfull-stacksolutions to build robustandscalable systems. To succeed in this role, you should have experience inC# .NETsoftware development across multiple layers of the stack,and be passionate about building reliable, secure, and observable systems.

We are working in agile teams of 5–8 people consisting of software developers, system testers, and Scrum Masters. Some possibilityfor workfrom home is available, but most days we work in our office in Kista, Stockholm.

Requirements:

• Based in the Stockholm area.
• Office-first policy.
• Exam in relevant field, e.g. software development.
• Good communication skills in English and Swedish.

WhatYou’llDo

• Architect and build desktop and web applications using modern frameworks (e.g., React + Next.js, Avalonia or similar).
• Ensure applications are optimized for cross-platform use(mobile, macOS, Windows, Linux).
• Work closely with hardware and firmware team as well as product line management to deliver end-to-end solutions.
• Drive best practices in coding, testing, and DevOps to ensure quality and scalability.
• Mentor junior developers and contribute to building a high-performing engineering culture.For the right candidate, take on product owner responsibilities.

WhatWe’reLooking For

• 5+ yearsof professional experience as a Full-Stack Engineer.
• Strong proficiency in modern .NET (preferably .NET 8 or newer).
• Experience with cross-platform development(responsive design, hybrid/native mobile-friendly solutions).
• Familiarity with CI/CD pipelines, cloud platforms (preferably Azure), and containerization (Docker/Kubernetes).
• Strong problem-solving skills and ability to work independently on complex challenges.
• Excellent communication and collaboration abilities.

Nice-to-Have

• Experience with mobile app development(React Native, Flutter, or similar).
• Understanding of back-end technologies(Node.js, Python, Go, or similar).
• Knowledge of hardware communication protocols(SPI, I2C, UART, etc.).
• Experience with development of embedded softwarethat interfaces with hardware systems (e.g. C/C++, embedded Linux, RTOS).
• Familiarity withperformance optimizationfor both embedded and web systems.

Smartoptics R&D team is located in Kista with head office in Oslo, Norway. Benefits include pension, health insurance, bonus scheme, 6 weeks’ vacation and flexible working hours. For more information about Smartoptics, please seesmartoptics.com/about .

Furthermore, note that you must have a Swedish/EU work permit. No relocation assistance or visa support provided. No recruiters or agencies, please.

About Smartoptics

Smartoptics is a Scandinavian company founded in 2006. We provide innovative optical networking solutions for the new era of open networking. Our focus is on solving network challenges and enhancing the competitiveness of our customers. Our clientele includes cable and telecom operators, cloud providers, Internet exchanges, governments, and thousands of enterprises.

At Smartoptics, we value inclusivity and prioritize the well-being of our employees. We foster a positive company culture and provide a supportive work environment.

Apply for the job

Fill out the form and upload your documents to apply for this position.

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