Lead Engineer, Photonics IC Software Design

II-VI Järfälla AB; Stockholms kommun; On-site; SEK 600,000 - 800,000; Full time

Job summary

II-VI Järfälla AB in Sweden is looking for a Senior Software Engineer to support the development of next-generation optoelectronic components. In this role, you will design and develop software applications for electronic test systems and automate testing processes.

The ideal candidate holds a Master’s degree and has strong experience in software development with proficiency in C#, C++, or Java. Skills in Python or MATLAB are a plus, and a background in semiconductor or electronics is highly relevant. The position emphasizes collaboration and innovation.

Qualifications

• Strong professional experience in software development.
• Ability to work close to hardware, instruments, devices, and measurement data.
• Experience in semiconductor, electronics, optoelectronics, industrial automation, or manufacturing test environments.

Responsibilities

• Design, develop, and maintain software applications for optical and electronic test systems.
• Build software to control instruments, test devices, collect measurements, and process data.
• Develop algorithms and software features that improve automation and efficiency.

Skills

Software development

Object-oriented programming in C#, C++ or Java

Software for test systems

Data analysis

Education

Master's degree in Computer Science, Engineering, Physics or related field

Tools

Python

MATLAB

Job description

Coherent Corp is the global leader in photonics, designing and manufacturing advanced laser, optical, and materials technologies. Our innovations power semiconductor manufacturing, AI infrastructure, advanced communications, and precision industrial systems worldwide. With a global footprint and cutting‑edge manufacturing and R&D, we're shaping the future of high‑tech industries.

In Sweden, our teams operate Sweden's only full‑scale indium phosphide wafer fabrication facility, where we design, manufacture, and test some of the world's fastest optical chips under one roof, supporting AI infrastructure, data centres, and global communications networks worldwide.

The Role

This is a senior, hands‑on software engineering role within an R&D environment, supporting the development of next‑generation optoelectronic and semiconductor components. The role focuses on building the software infrastructure used to control instruments, test devices, capture measurement data, and support automated test solutions from early prototype development through to production use.

What you will be doing

• Design, develop, and maintain software applications for optical and electronic test systems.
• Build software to control instruments, test devices, collect measurements, and process data.
• Develop software infrastructure that supports early prototype testing and automated production test solutions.
• Work closely with verification, engineering, and manufacturing teams during new product development.
• Contribute to the planning and design of new test setups and measurement workflows.
• Develop algorithms and software features that improve automation, efficiency, test coverage, and data quality.
• Analyze measurement data to verify test quality and support root‑cause investigations.
• Release, maintain, and continuously improve software used across development and manufacturing phases.
• Ensure software is documented, reliable, maintainable, and aligned with internal standards.
• Support knowledge sharing within the team and mentor more junior colleagues when required.
• Represent the test software perspective in cross‑functional project work when needed.

About You

• A Master's degree in Computer Science, Engineering, Physics, or a related field.
• Strong professional experience in software development.
• Strong object‑oriented programming experience, ideally in C#, C++ or Java.
• Experience developing software for test systems, industrial systems, scientific equipment or similar technical environments.
• Ability to work close to hardware, instruments, devices, and measurement data.
• Experience with Python or MATLAB would be beneficial.
• Experience with data analysis, modelling, simulations, or measurement processing would be beneficial.
• Experience in semiconductor, electronics, optoelectronics, industrial automation, or manufacturing test environments would be highly relevant.

Nice to haves

• Experience with optical, photonic, or optoelectronic test systems.
• Experience working with semiconductor devices, lasers, modulators, wafers, chips, or modules.
• Experience developing automated production test solutions.
• Experience supporting new product introduction from prototype through to production.
• Experience leading technical workstreams or representing software/test development in project teams.

Values

• Integrity – Create an Environment of Trust
• Collaboration – Innovate Through the Sharing of Ideas
• Accountability – Own the Process and the Outcome
• Respect – Recognize the Value in Everyone
• Enthusiasm – Find a Sense of Purpose in Work

We are committed to creating an inclusive and accessible recruitment experience and encourage applications from individuals of all backgrounds.