Senior Full-stack Engineer

Avenga; Stockholms kommun; On-site; SEK 900,000 - 1,200,000; Full time

Job summary

Avenga, a leading international engineering firm, seeks a Senior Full-stack Developer to join an agile DevOps team at a major energy company. You will craft modern web solutions with a strong emphasis on availability, reliability, and security.

Collaborating with product owners and domain experts, you will drive initiatives independently while thriving in a team setting. The role rewards strong communication, autonomy, and continuous learning within an inclusive environment.

Qualifications

• 6+ years of experience with .NET Core, C#, and TypeScript.
• 6+ years of experience with Angular (v18+).
• 2+ years of experience with Tailwind CSS.
• Hands-on experience with Azure, Azure DevOps, Git, and CI/CD pipelines.
• Experience with messaging and asynchronous systems: Kafka, Azure Service Bus, and real-time communication.
• Good knowledge of API and system integration, asynchronous communication, and automation.
• Good knowledge of unit testing (xUnit, NUnit, or similar).
• Fluent Swedish and English, spoken and written.
• Excellent communication skills and ability to work autonomously on complex projects.

Responsibilities

• Develop modern applications with high availability and reliability.
• Create robust integration layers to connect internal systems and external actors.
• Build automation features to streamline time-critical processes.
• Support architectural decisions to ensure secure, maintainable, future-proof solutions.
• Implement and advocate for unit testing and high-quality development practices.
• Contribute to and spread modern DevOps methodologies enabling continuous delivery.

Skills

.NET Core, C#, TypeScript

Angular (v18+)

Tailwind CSS

Azure DevOps, Git, CI/CD

Kafka, Azure Service Bus, real-time

API & integration, async, automation

Unit testing (xUnit, NUnit)

Fluent Swedish & English

Communication & autonomous work

Tools

Azure

Azure DevOps

Git

CI/CD

Job description

Avenga is an international engineering firm helping businesses operate with AI at the core. With 6,000+ experts worldwide, we combine engineering expertise with AI-native thinking to turn ambitious ideas into real-world impact across industries, technologies, and markets.

At the core of the role

We are looking for a Senior Full-stack Developer, equally strong in frontend and backend, to join an agile DevOps team at a leading energy company. You will build innovative web solutions that make a difference, with high requirements on availability, reliability and security.

You will collaborate closely with colleagues, product owners and domain experts. Strong communication skills and the ability to work autonomously are essential: you should be comfortable driving initiatives forward independently while collaborating effectively in a team setting.

This is a role where diverse perspectives are valued and continuous learning is encouraged. You will grow your technical skills while contributing to a supportive and inclusive work environment.

Core skills you’ll bring

• 6+ years of experience with .NET Core, C#, and TypeScript
• 6+ years of experience with Angular. The client currently uses version 20+ and will only consider candidates who have worked with version 18 or higher
• 2+ years of experience with Tailwind CSS
• Hands-on experience with Azure, Azure DevOps, Git, and CI/CD pipelines
• Experience with messaging and asynchronous systems: Kafka, Azure Service Bus, and real-time communication
• Good knowledge of API and system integration, asynchronous communication, and automation
• Good knowledge of unit testing (xUnit, NUnit, or similar)
• Fluent Swedish and English, spoken and written
• Excellent communication skills and a proven ability to work autonomously in complex projects

The impact you'll create

• Develop modern applications with high requirements on availability and reliability
• Create robust integration layers to connect internal systems and external actors
• Build automation features that simplify and streamline time-critical processes
• Support architectural decisions, ensuring solutions are secure, maintainable and future-proof
• Implement and advocate for unit testing and high-quality development practices
• Contribute to and spread modern DevOps methodologies, enabling continuous delivery of resilient features

What supports your journey

People are at the core of Avenga. We provide equal opportunities regardless of race, ethnicity, gender identity, sexual orientation, disability, age, religion, or any other characteristic. We are committed to a respectful environment where everyone can be themselves, share their ideas, and feel that they belong.