Design Engineering – Senior Analog IC Design Engineer

Join world-class CMOS image sensor design professionals in providing high-performance analog and mixed-mode circuits for leading custom machine vision CMOS image sensor devices. Photolitics Bulgaria is currently looking for a highly motivated individual to fulfill the role in our design office in Bulgaria.

By joining us you will have the opportunity to gain experience in both photonics IC design, as well as specific to the CMOS imaging field analog-to-digital converters (ADC), digital-to-analog converters (DAC), analog filters, serializers and LVDS, phase-locked loop (PLL), voltage references, low-dropout regulators (LDO), serial-peripheral interfaces (SPI), and other timing circuits. As a senior analog designer you will have the freedom to perform architecture exploration, feasibility studies and high-level product specifications. At Photolitics you will have the choice and opportunity to participate in every phase of CMOS image sensor design – from initial prespecification to final product production.

Job description available for printout in PDF

Specific Job Duties:

◇ Design innovative high-level architectures for CMOS image sensors

◇ Perform schematic and layout design and take complete ownership of designed modules

◇ Write technical documentation on developed modules

◇ Silicon debug and chip bring-up

◇ Work on image sensor characterization


◇ Analog design experience, very good understanding of SPICE-based simulation engines: Spectre, Eldo, HSPICE

◇ Schematic and layout design of complex analog/mixed-signal blocks: ADC, DAC, bandgap reference design, low-noise high-precision opamp, precision-comparator, switch-capacitor circuits, SERDES, PLLs, oscillators, continuous-time circuits, feedback and control loops

◇ Understanding of fundamentals in design for low-power and low-noise. Fundamentals in solid-state fabrication processes, yield optimization.

◇ Familiarity with CAD tools for analog/mixed-signal IC design: Cadence Virtuoso, Mentor Calibre, Design Architect, etc…

◇ Debug and characterization of electronics systems in a laboratory environment

◇ Good communication skills

Other analog design experiences in one or more of the following fields is preferable, but not required:

◇ CMOS image sensor design experience

◇ Knowledge in fundamentals of photonics and electro-optics

◇ Single-slope ADC or other column-parallel ADC architectures

◇ Basic design skills in VHDL or Verilog for FPGA design


◇ BSc in electrical engineering. MSc/PhD or relevant work experience is desirable

◇ Candidate must be a team player and an active participant in brainstorming solutions

What we offer:

◇ Stimulating work environment and endless possibilities for growth into an experienced solid-state image sensor R&D scientist

◇ Freedom to explore own architectures and design solutions. You have the possibility to take complete ownership and participate in the whole process of IC design

◇ Be encouraged to publish work in highly-ranked scientific journals and have the ability to participate in scientific conferences and training courses

◇ Work with state-of-the-art CMOS fabrication nodes, gain an in-depth knowledge of solid-state semiconductor design

◇ Straight-to-the-point work, no participation in endless nonsense corporate meetings

◇ Work package of 25 paid holidays yearly

◇ Generous relocation package and assistance

◇ Highly competitive salary

Photolitics is an equal opportunities employer.
Additional information on the position can be obtained from Deyan Levski at:
To apply, please send your application with the usual document (CV), with an example of your prior experience to: