Senior Software Engineer – Application Developm... · Gothenburg - SiNIX Sweden HQ

Sinix; Göteborgs kommun; On-site; SEK 600,000 - 800,000; Full time

Benefits offered by this job

Bonus

Training

Vacation

Pension

Insurance

Job summary

Sinix, located in Göteborg, Sweden, is seeking senior engineers to build well-structured applications. The role involves developing custom applications and backend services, writing maintainable code in C++ and/or C#, and collaborating with customers on long-term projects in Industrial and Automotive domains. Candidates should have over 5 years of experience and strong skills in relevant programming languages. Sinix offers flexibility in choosing salary and benefits to shape your career.

Qualifications

• 5+ years of professional experience in software development.
• Strong skills in C++ and/or C#.
• Experience with modern frontend frameworks like React, TypeScript or Angular is a plus.
• Solid understanding of software architecture and clean code principles.
• Cloud experience is a plus — curiosity is a must.
• A consultative mindset and strong communication skills.

Responsibilities

• Developing custom applications and backend services.
• Writing high-quality, maintainable code in C++ and/or C#.
• Full-stack development using React, TypeScript or Angular.
• Collaborating closely with customers to understand real needs.
• Working in long-term projects within Industrial or Automotive domains.

Skills

C++

C#

React

TypeScript

Angular

Software architecture

Clean code principles

Cloud experience

Consultative mindset

Strong communication skills

Job description

Do you love building well-structured applications that solve real problems? At SiNIX, we’re expanding our application development capability and are looking for senior engineers who care deeply about code quality, maintainable design and delivering value to users.

What you’ll work with

• Developing custom applications and backend services
• Writing high-quality, maintainable code in C++ and/or C#
• Full-stack development using React, TypeScript or Angular
• Collaborating closely with customers to understand real needs
• Working in long-term projects within Industrial or Automotive domains

You’ll work either in dedicated in-house project teams or as a skilled consultant at a customer site, always with the support, community, and technical leadership of SiNIX.

What we’re looking for

• 5+ years of professional experience in software development
• Strong skills in C++ and/or C#
• Experience with modern frontend frameworks (React, TypeScript, Angular) is a plus, not a requirement
• Solid understanding of software architecture and clean code principles
• Cloud experience is a plus — curiosity is a must
• A consultative mindset and strong communication skills

What we offer

At SiNIX, you’re trusted to shape your own career. You choose your salary and benefits mix — bonus, training, vacation, pension, insurance and more — and get the flexibility to grow both technically and professionally.

About SiNIX

SiNIX Application delivers tailored software solutions where quality and long-term value matter. We invest in people, not buzzwords — and we believe great applications are built by engineers who are given ownership, trust and room to grow.