Fullstack Developer at Seriline AB

Description:

Seriline is a Swedish technology company specializing in identity and access management (IAM). We develop proprietary software, web solutions, and security systems that control who gets access to what – systems, facilities, data. Our customers are organizations with high security requirements where accuracy and traceability are business-critical. With stable finances and long-term investments in both product and people, we offer an environment where you gain technical influence, short decision-making paths, and the opportunity to shape the next steps. About the role We're looking for a fullstack developer with strong JavaScript expertise for our Stockholm office. You'll become part of a cohesive team of ten people developing and maintaining platforms within IAM and visitor management. The role spans the entire development chain – from design and architecture, through development and testing, to deployment and support. You'll work with both frontend and backend in a modern JavaScript-based stack. We are an office-first company where work takes place at our office at Alviks Torg. Here we prioritize close collaboration, fast decision-making, and an environment where it's encouraged to discuss technical solutions. Your responsibilities Develop new features in our JavaScript-based platform Maintain and improve existing codebase Participate in design, architecture, and technical decisions Work with integrations and APIs toward external services Implement the platform at customer sites or in SaaS environments 3rd-line support with troubleshooting Qualifications Must-haves: At least 3 years of professional development experience Strong expertise in JavaScript and Node.js Experience with MongoDB or another NoSQL database Good knowledge of React You use AI tools as a natural part of your development work Experience with Git and established workflows Understanding of web security (OWASP Top 10) Candidate degree in a relevant field or equivalent experience Fluent Swedish in speech and writing Swedish citizenship (required for security clearance) Nice-to-haves: API design (REST/GraphQL) OAuth2/OIDC, JWT, CORS/CSRF, CSP Experience with MeteorJS Expertise in .NET/C# Experience introducing or improving AI-assisted development practices in development teams Knowledge of Entra ID and Active Directory Experience with integrations toward access control systems, RFID/NFC Experience as Tech Lead or IT architect As a person You are proactive, dare to raise questions early, and enjoy taking ownership. You like discussing technical solutions and contributing ideas. For us, it's more important that you're curious and driven than that you know everything from day one. Why Seriline? Own product development with direct impact on the end result Technical breadth: fullstack, integrations, security Experienced team with short decision-making paths Stable employer with long-term investments AI tools are a natural part of everyday work About the position Scope: Full-time, permanent position Start: By agreement Placement: Alviks Torg, Bromma This is a direct recruitment – you will be employed directly by Seriline AB. Lynqa is responsible for the recruitment process. Background check will be conducted before employment. About Lynqa Lynqa is your career partner in tech. We work with selected product companies and tech teams at the forefront – roles you rarely see on regular job boards. With us, you get quick feedback, a personal contact, and access to opportunities before they're advertised. Curious about what's available? Get in touch with [email protected] Lynqa – we connect people

Overview

Type

job

Status

active

Visibility

public

City

Solna

Address

Parkvägen 2

GPS

59.329323, 18.06858copyopen in

Email

[email protected]

Views

4

Published

3. 2. 2026

Edited

21. 6. 2026

Specifications