Staff Firmware Engineer
Flex · Taiwan · full time · On site · September 08, 2026
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Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world.
A career at Flex offers the opportunity to make a difference and invest in your growth in a respectful, inclusive, and collaborative environment. If you are excited about a role but don't meet every bullet point, we encourage you to apply and join us to create the extraordinary.
Job Summary
The Sr. Engineer, FW will be based in Taiwan Taipei Wugu Site. The Sr. Engineer, FW performs the responsibility for software design in Tier 1 customer's PSU/BBU/ESS Projects request.
The experience we’re looking to add to our team:
- Minimum 5 years of engineering experience in software development for battery systems (BBU, UPS), SMPS, Pure-Sine Inverters and related industries.
- Experience with BMS/SMPS software creation, debugging and control algorithms.
- Experience with software development tools, debugging tools, test tools creation and diagnostics tools. (e.g., scripts, i2c analyzer, python, etc.)
- Experience with software change and update cycle management.
- Experience with electrical circuits used in BMS hardware and in SMPS (Switch-mode power supplies) hardware.
- Excellent communication skills. (verbal and written)
- Problem solving and organizational skills.
- Can work beyond normal working hours and work on overseas trips for build support.
What you’ll receive for the great work you provide:
- Social Insurance (Labor Insurance, NHI, Labor Pension)
- Group Insurance (Life Insurance)
- PTO
AX01
KL03
What a typical day looks like:
- The Firmware engineer will work with Battery Management System (BMS) software and hardware circuits, Switching Power supplies (SMPS) software and hardware circuits.
- Candidate will define and develop BMS requirements for software and control algorithms, development, release and execution of test plans and builds.
- Team player, work cross functionally with different teams to verify software meets system needs and requirements.
- Track and troubleshoot issues and test systems on benches, actual systems and on ATE systems.
Job Category
Design, Process & Technology Engineering
Required Skills:
Optional Skills:
Flex is an Equal Opportunity Employer and employment selection decisions are based on merit, qualifications, and abilities. We do not discriminate based on: age, race, religion, color, sex, national origin, marital status, sexual orientation, gender identity, veteran status, disability, pregnancy status, or any other status protected by law. We're happy to provide reasonable accommodations to those with a disability for assistance in the application process. Please email accessibility@flex.com and we'll discuss your specific situation and next steps (NOTE: this email does not accept or consider resumes or applications. This is only for disability assistance. To be considered for a position at Flex, you must complete the application process first).
- Employer
- Flex
- Location
- Taiwan · On site
- Contract
- full time