Microsemi Corporation is a leading provider of semiconductor solutions differentiated by power, security, reliability, and performance. The company offers a comprehensive portfolio of semiconductor solutions for: aerospace, enterprise and commercial; and industrial and alternative energy markets.  Products include high-performance, high-reliability analog and RF devices, mixed-signal and RF integrated circuits, customizable system-on-chip (cSoC) solutions, Power over Ethernet ICs and midspans and complete subsystems.  Microsemi is a publicly held company (NASDAQ: MSCC), founded in 1960, headquartered in Irvine, California and has approximately 2,800 employees.


In Ireland, Microsemi has 2 locations – Ennis and Dublin.


The Ennis facility concentrates on the manufacture of Hi-reliability discrete power semiconductors for the global Avionics and Aerospace markets.  The European Sales Office & Logistics Hub is also located in Ennis and manages European sales for the HiRel division.


In Dublin Microsemi has an R&D team focussed on advanced Semiconductor IP, Software and Solutions with an emphasis on ARM processor centric designs.

Overall rating
Based on 2 employee reviews
  • Office & Transport links
  • Culture & people
  • Training & development
  • Work/Life balance
  • Career progression

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Microsemi Jobs

Manufacturing Engineer ( 9-12 Maternity Leave Contract)

Want to be part of a progress team here in Microsemi?

Senior Aerospace Power System Engineer

Are you an experienced engineering interested in an exiting opportunity within Microsemi Semi Conductor Community?

Senior Engineer, Aerospace Mechanical Design

We have a number of key exciting Engineering positions in our Ennis based IPS design team. This role executes mechanical design, packaging and thermal analysis of power and control electronics.

Senior Purchasing and Logistics Planner

Help your career progress!

Senior Engineer, Aerospace Electronic Design

We have a number of key exciting Engineering positions in our Ennis based IPS design team. This position executes electronic design and development.

Microsemi reviews

Opportunity to perform bleeding-edge, bespoke design in an experienced team

Anonymous in Dublin City, Ireland
former employee in 2017

The Best Bits

Every project presented a new and exciting challenge, working as part of experienced and well motivated team. The office is also in a great location in the city centre.

Things to improve

As with all companies operating in this space, pressure generally builds when a chip launch is approaching but does reduce again once the product is released to market.


Please describe the problem with this review.

thankless place for your efforts

Anonymous in Ennis, Ireland
former employee in 2014

The Best Bits

some friendly staff

Things to improve

management needs to improve their people skills


Please describe the problem with this review.



Microsemi is hands-on learning center, a friendly place with an open environment where the intelligence and experience of its teams meet. Early on, I was given hands-on, flexible training without limitation. In previous companies, there was just the daily routine, no challenge or freedom to put your ideas into practice like there is at Microsemi. I would tell a potential employee to grab this great opportunity!
Dave Brady, Wafer Fab Production Engineer
Compared to other companies, Microsemi focuses on producing a good product and customer satisfaction. Also, employees are always encouraged to advance when openings are available. I have always felt comfortable knowing that if I need something to make my job easier all I have to do is let someone know—and it’s supplied almost immediately. Microsemi is a great place to work.
Flo Green, Quality Assurance Inspector
Over the years, I've been offered promotions with the support and help of my supervisors and managers and was able to take classes pertaining to the new positions. I look forward to coming to work because I enjoy the independence of taking responsibility to organize, start and move product through the factory. I would tell a potential employee, when you give 100%, it is returned. There’s an excellent benefits package that includes health, dental, optical, and life insurance—it's one of the best.
Sue Gilkie, Production Planner
The best part about working for Microsemi is how the different parts of the organization and individual functions interact and come together to make a terrific product. At Microsemi, the emphasis on quality over quantity is a major difference compared to other companies.
Ron Doss, Engineering Technician
My four day work week has allowed me to maintain a healthy balance between work and family. Over the years, I’ve gained valuable training that continues to have a positive impact on my professional development and daily job performance. Microsemi has a positive and productive environment where hard work is rewarded.
Debbie Davidan, Quality Assurance Administrative Specialist


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