Backend Software Engineer (Node.js)

Wrknest; Stockholms kommun; Hybrid; SEK 550,000 - 850,000; Full time

Benefits offered by this job

Competitive compensation package

Occupational pension and insurance package

Wellness allowance

Flexible working hours

Access to modern technical equipment and products

Job summary

Wrknest is seeking a Backend Software Engineer for an international technology company in Stockholm. In this role, you'll develop vital backend services using Node.js and TypeScript. The ideal candidate has over 5 years' experience with development for connected devices, a strong understanding of web security, and is proficient in SQL databases. The position offers a hybrid working model and competitive compensation, along with benefits like wellness allowance and occupational insurance.

Qualifications

• 5+ years of professional experience working with Node.js and TypeScript.
• Minimum 3 years with SQL databases like PostgreSQL.
• Experience developing software for connected devices or complex environments.
• Good understanding of web security fundamentals.
• Strong debugging skills and defensive programming experience.
• Professional experience with Git, Unix/Linux, and Docker.
• Ability to work independently and take ownership of solutions.
• Strong communication skills in English.
• Valid Swedish work permit and resident in Sweden.

Responsibilities

• Design and develop backend services for large-scale connected systems.
• Build and maintain backend services using Node.js and TypeScript.
• Develop secure, scalable, and maintainable APIs and workflows.
• Contribute to architectural discussions and technical decisions.
• Review code and support high engineering standards.
• Investigate production issues and implement robust solutions.
• Collaborate across embedded, web, mobile, product, and design teams.
• Improve reliability and developer experience across services.

Skills

Node.js

TypeScript

SQL databases (PostgreSQL)

Web security (OWASP, OAuth)

Debugging skills

Git

Unix/Linux

Docker

Strong communication in English

Job description

About the role

Wrknest is recruiting a Backend Software Engineer on behalf of an international technology company based in Stockholm. The company develops advanced connected platforms used by businesses and consumers worldwide, with a strong focus on networking, cloud infrastructure, and smart device ecosystems.

In this role, you will join a highly skilled engineering team responsible for developing and maintaining core backend systems powering connected products and services. The position is ideal for someone who enjoys solving technically complex challenges, improving system reliability, and working across backend, cloud, embedded, and application environments.

You will become part of a collaborative and product-focused engineering culture where quality, ownership, and continuous improvement are highly valued.

Your future tasks

You will play an important role in designing and developing backend services that support large-scale connected systems and applications. The role involves close collaboration with several technical teams and offers the opportunity to influence both architecture and development processes.

• Designing, building, and maintaining backend services using Node.js and TypeScript
• Developing secure, scalable, and maintainable APIs and workflows
• Contributing to architectural discussions and technical decisions
• Reviewing code and supporting high engineering standards and release quality
• Investigating production issues and implementing robust solutions
• Collaborating with teams within embedded, web, mobile, product, and design
• Improving reliability, observability, and developer experience across services

Requirements

• At least 5 years of professional experience working with Node.js and TypeScript
• Minimum 3 years of experience working with SQL databases such as PostgreSQL
• Experience developing software for connected devices, infrastructure products, networking systems, or similar complex environments
• Good understanding of web security, including OWASP, OAuth, and browser security fundamentals
• Strong debugging skills and experience with defensive programming
• Professional experience with Git, Unix/Linux, and Docker-based environments
• Ability to work independently and take ownership of technical solutions
• Strong communication skills in English, both written and spoken
• Valid Swedish work permit and residence in Sweden at the time of application

Meritorious

• Experience with Rust or Go
• Experience with gRPC
• Experience with WebRTC
• Experience with DevOps, CI/CD, and build pipelines
• Experience using AI tools and LLMs to improve engineering workflows and productivity

The client values engineers who are curious, solution-oriented, and motivated by building reliable products in technically advanced environments. You are comfortable collaborating across teams while also taking ownership of your own work.

Start: According to agreement

Location: Stockholm, Sweden

Employment type: Full-time

Work model: Hybrid

Benefits

• Competitive compensation package
• Occupational pension and insurance package
• Wellness allowance
• Flexible working hours
• Access to modern technical equipment and products

Please note that a background check will be conducted in the final stage of the recruitment process.