Backend Software Engineer (Node.js)

Wrknest AB; Stockholms kommun; Hybrid; SEK 543,242 - 760,538; Full time

Benefits offered by this job

Competitive compensation package

Occupational pension and insurance

Wellness allowance

Flexible working hours

Access to modern technical equipment

Job summary

Wrknest AB is seeking a Backend Software Engineer for an international tech company in Stockholm. This role involves designing and developing backend services with a focus on Node.js and TypeScript. Ideal candidates will have at least 5 years of experience and will work on complex systems in a collaborative, hybrid environment. Benefits include a competitive compensation package, wellness allowance, and flexible working hours.

Qualifications

• At least 5 years of professional experience with Node.js and TypeScript.
• Minimum 3 years of experience with SQL databases such as PostgreSQL.
• Experience in developing software for connected devices or complex systems.
• Good understanding of web security, including OWASP and OAuth.
• Strong debugging skills with experience in defensive programming.
• Ability to work independently and take ownership of solutions.

Responsibilities

• Designing and developing backend services for large-scale connected systems.
• Collaborating with technical teams to influence architecture and development.
• Building and maintaining secure, scalable APIs and workflows.
• Reviewing code to support high engineering standards.
• Investigating production issues and implementing robust solutions.

Skills

Node.js

TypeScript

SQL databases (PostgreSQL)

Web security (OWASP, OAuth)

Debugging

Git

Unix/Linux

Docker

Communication in English

Job description

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. This 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.

Responsibilities

ou 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 solutionsCollaborating 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

Other information

• 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.