Embedded Software Engineers primarily deal with code, aiming to make hardware devices operate according to our ideas. For instance, the apps we use daily on our smartphones and the implementation of various functions rely heavily on the efforts of embedded software engineers.
Based on the functional requirements of the device, they develop corresponding software programs using programming languages like C and C++, and also test and optimize the programs to ensure stable operation on hardware devices without issues. For example, smartwatches accurately record exercise data, and smart speakers understand our commands, all thanks to the role of embedded software. Embedded Hardware Engineers are mainly responsible for designing and building hardware platforms. They select appropriate components such as chips, resistors, and capacitors, design circuit diagrams, and then create circuit boards, assembling various hardware modules like building blocks to ensure the device can power on and operate normally.
They must consider factors such as hardware stability, power consumption, and cost. For instance, when designing a smartphone motherboard, it is essential to ensure strong performance while controlling costs and minimizing power consumption, so that the smartphone battery lasts longer.
Relatively speaking, the demand for embedded software engineers may be broader. Software acts as the “soul” of the device; after the hardware is built, software is needed to realize various rich functions, which is why companies have a consistent high demand for software engineers. For example, when developing smart speakers, it is necessary not only to design the hardware but also to develop software that enables voice interaction, music playback, and information queries, requiring a large number of software engineers to participate.
Searching for “Embedded Software Engineer” and “Embedded Hardware Engineer” on recruitment platforms often reveals that there are more positions available for software engineers. Many internet companies, tech firms, and even some traditional industries are venturing into the smart hardware field, leading to a continuous increase in demand for embedded software engineers.
For instance, companies like Xiaomi and Huawei recruit a large number of embedded software engineers each year to participate in the software development of smartphones and smart home products. Of course, there are also many positions for hardware engineers, especially in companies focused on hardware manufacturing and electronic device development, such as Foxconn and DJI, where the demand for hardware engineers remains stable, albeit slightly lower in number compared to software engineers. In terms of salary, the difference between the two is not particularly large. When starting out, embedded software engineers may earn slightly more, with fresh graduates in first-tier cities earning around 8000 – 15000 yuan per month; embedded hardware engineers might start at around 7000 – 13000 yuan. However, as work experience accumulates, mid to senior-level hardware engineers who become technical backbones or hardware architects can also earn substantial salaries, with annual incomes of 300,000 – 500,000 yuan being common.
Senior software engineers also see significant salary increases, with annual salaries reaching a million yuan not being uncommon in leading companies. For example, embedded software engineers in the autonomous driving field, due to high technical requirements and market demand, see their salaries rise significantly.
Getting started with embedded software is relatively easier. As long as you have a computer and the necessary development tools installed, you can begin learning programming. There are also numerous online learning resources available, such as MOOCs and NetEase Cloud Classroom, which offer many high-quality embedded software courses. Moreover, learning programming languages follows certain patterns; once you master foundational languages like C and C++, picking up other languages becomes quicker.
On the other hand, the learning threshold for embedded hardware is relatively high. Not only must one master specialized knowledge such as analog electronics, digital electronics, and circuit principles, but practical operation of hardware devices is also required, necessitating the purchase of hardware development boards, oscilloscopes, multimeters, and other tools, which can be costly. Additionally, if there is an error in hardware design, modifications can be cumbersome, often requiring the re-manufacturing of circuit boards, which can take a long time. For example, designing a hardware circuit may take several days, and if an issue is discovered during testing, it may require starting over.
Software technology evolves rapidly, with new programming languages, frameworks, and development tools constantly emerging. Embedded software engineers must continuously learn new technologies to keep pace with the times. For instance, while C was primarily used for embedded software development in the past, Python is becoming increasingly prevalent in the embedded field, necessitating engineers to learn Python.
Although hardware technology is also advancing, the pace of change is relatively slower. Once the basic principles and methods of hardware design are mastered, they remain applicable for a long time. However, with the development of technologies such as artificial intelligence and the Internet of Things, new requirements are being placed on hardware engineers, such as mastering the design of smart hardware and sensor technologies. Nowadays, many companies first determine the functional requirements of a product and then develop hardware and software around those functions. Software offers greater flexibility in realizing product functions, allowing for continuous updates to add new features and optimize user experience. Therefore, during product development, companies tend to rely more heavily on software engineers, leading to higher demand.
Moreover, the results of software engineers’ work are relatively easy to quantify, such as the number of functional modules developed or the improvement in software performance metrics, which can be clearly demonstrated. In contrast, the work of hardware engineers is more foundational; once hardware design is finalized, the likelihood of later modifications is low, resulting in a relatively stable number of hardware engineer hires. For employment, it is beneficial to pursue both embedded software and hardware, as they complement each other rather than being completely separate. If one has the energy, they can learn both, becoming a versatile talent proficient in both software and hardware. This will provide a competitive edge in the job market, enabling them to handle a wider variety of roles.
For instance, some projects require both hardware circuit design and software program development, and versatile talents can manage both independently. When learning, one can first determine a primary direction and then allocate time to learn the basics of the other direction, such as focusing on software while also understanding some basic principles of hardware design, facilitating smoother communication and collaboration with hardware engineers in the workplace.