System Developer for Security-Critical Systems – Direct Hire in Northern Stockholm

Eccera Professionals AB

Stockholms län, Stockholm

Previous experience is desired

~54 900 kr / per month ->
Fixed monthly, weekly, or hourly salary

Published 2026-06-05 Permanent employment Full time

65 days left
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We are specialists in staffing and consulting services within IT and technology – from promising talents and consultants with broad competence to experienced specialists with deep expertise.

For you as a candidate, we are a secure partner offering exciting assignments, personal development, and close contact with our advisors. We ensure you get the right assignment for your skills and ambitions – always with the human element at the center.

For our clients, this means we are a reliable supplier that can quickly match the right competence with the right need. In addition to our strong internal consulting organization, we also have an extended partner network, allowing us to offer even greater flexibility and breadth in delivery.

Collaboration and quality characterize everything we do, and our core values are summarized in our promise: Empowering the Nordics through people.

Eccera has 300 employees and offices in Stockholm, Gothenburg, Malmö, and Linköping. We are a member of Almega Kompetensföretagen and follow their collective agreement with Unionen.

Eccera is now looking for several system developers to join an exciting development team for our client in northern Stockholm. We are looking for you who have at least 3–6 years of experience in system development and want to work with advanced and socially critical systems in a technically challenging environment. The client is a product company developing its own solutions for operations where high demands are placed on availability, security, and quality throughout the entire product lifecycle.

You will become part of a team working on developing products, services, and turnkey systems for actors in society's front line, with the aim of strengthening security and robustness in critical operations. The team develops, among other things, high-performance VPN and firewall solutions, with a focus on secure communication, network protection, and reliable operation in demanding environments.

The work takes place primarily on-site in northern Stockholm and is a direct recruitment, meaning you will be employed directly by the client.

About the role

You will work operationally with system development in an environment where security, performance, and stability are central. The solutions are used in socially critical functions and place high demands on quality and long-term viability.

Here you do not work with generic standard solutions, but with advanced systems in complex environments – sometimes in isolated (air-gapped) infrastructures – where reliability is crucial.

Responsibilities

Develop and further develop systems within security-critical environments
Ensure high quality, performance, and stability in code and solutions
Participate in the implementation of technical solutions
Work with debugging, optimization, and improvement of existing systems
Collaborate closely with various teams regarding requirements, solutions, and technical choices

Qualifications

We are looking for you who have:

At least 3–6 years of experience in system development
Experience from product companies or business-close development is meritorious
Good understanding of how application, platform, network, and operations interact
Experience working in Linux-based environments
Proficiency in working with performance-critical and robust systems
Very good knowledge of Swedish and English, both spoken and written
Ability to undergo security clearance

Meritorious experience