Open Positions

Responsibilities:

1. Design, develop, and maintain digital signal processing (DSP) for wireless communications.

2. Code, simulate, and test solutions on field-programmable gate arrays (FPGA) and digital signal processors (DSP).

3. Lead work to test and validate to ensure system designs meet operational and functional requirements.

4. Solve problems concerning and provide support over the entire product lifecycle.

5. Research technology advances for potential application to company business needs.

Job Prerequisites:

1. Bachelor’s degree or higher in Electrical Engineering (or equivalent), with 5+ years DSP experience.

2. In-depth understanding of wireless technology, and digital/analog/RF communications.

3. DSP/Digital lab skills with oscilloscope, spectrum analyzer, digitizer, arbitrary waveform generator, synthesizer, etc.

4. Proficiency in Matlab, and in some or all of the following scripting languages: C, C++, Python.

Responsibilities:

1. Help define chip and block level specifications.

2. Architect, develop and validate RF transmitter and receiver circuits.

3. Detailed design of sub-circuits including but not limited to low noise amplifier, power amplifiers, power detector, mixers, signal generation, PLL, signal detection, multiplexers.

4. Work closely with layout team and give support as needed.

5. Interface with test, product and application engineers to support the transition from prototype designs into mass production.

6. Author relevant technical documents and publications that describe the new circuit architectures and designs.

Job Prerequisites:

1. Master or PhD in Electrical Engineering (or equivalent).

2. 5+ years of design experience in RF transmitter or receiver circuits.

3. Master of at least one programming language, such as Python, MATLAB and C.

4. Proficiency in using RF design tools.

Type: full-time / regular, direct hire 

Location: São Paulo, Brazil

Note: Please kindly attach English resume when apply.

As Espressif is rapidly growing globally, we are looking for talented Senior Embedded Software Engineers to join our new subsidiary in Brazil. In this role, you will be working on developing and improving support for ESP32 in various open-source frameworks and operating systems. The ideal candidate for this position should have strong embedded software development skills, familiarity with bare metal and RTOS environments. This is a great opportunity to contribute to open source projects and expand the community of Espressif developers.

Main Responsibilities:

1. Develop and improve support for Espressif chips in RTOSes (such as Zephyr, NuttX) and frameworks (MicroPython, Arduino).

2. Collaborate with upstream projects, submitting features and bug fixes.

3. Help customers advance their progress on projects by offering technical support and helping them troubleshoot software issues.

4. Work closely with the teams developing other aspects of Espressif software and tools.

5. Write documentation such as application notes, tutorials, and API guides.

The following skills are desired:

1. Bachelor’s degree or above, in Computer Engineering, Electronic Engineering, Communications Engineering, or other related disciplines.

2. At least 4 years’ work experience in the field of Embedded Software Development.

3. Excellent knowledge of C language.

4. Familiar with low-level aspects of RTOS.

5. Familiar with command line tools (Linux / Unix) and at least one scripting language (shell, Python).

6. Experience with git version control system.

Any of the following would be a strong plus:

1. Prior experience in projects with operating systems and frameworks like Zephyr, Nuttx, Micropython, Lua, etc.

2. Knowledge of hardware communication protocols: SPI, UART, I2C, I2S.

3. Knowledge of network protocols, such as TCP, UDP, TLS, HTTP.

4. Knowledge of Bluetooth LE, GAP, GATT.

Responsibilities:

1. Interface with front end designers to assist them with customizing cad flows, Physical Design Verification methodology, and debugging LVS/DRC issues at all levels of hierarchy.

2. In-depth knowledge in CAD/EDA tools to support team of engineers on their daily CAD issues. 

3. Install and maintain and troubleshoot PDK environments for semiconductor foundries.

4. Install and manage EDA license servers and simulation tools (Cadence, Synopsys, Calibre and other EDA/CAD related tools).

5. Build and customize robust back-end flows, capturing the needs of both digital and analog circuit implementation and verification.

Experience Desired:

1. Bachelor in Electrical Engineering (or equivalent), with 5+ years industry experience.

2. Solid understanding of CMOS and bipolar transistor design, analog circuit theory, and deep sub-micron logic. 

3. Strong knowledge in VLSI design and physical layout.

4. Proficient in perl/tcl/python or other scripting and C/C++ is a plus.

5. Familiar in CAD tools, simulation and debug tools, design databases, file formats, back end flows.

6. Hands-on experience with industry-standard EDA tools.