How to Write a Job Description for Engineers: A Specialist Hiring Guide With Free Template
A practical guide for engineering directors and technical hiring managers on how to write a job description for engineers in specialist disciplines including firmware, embedded software, FPGA and power electronics. The article explains why HR-template JDs fail in tight candidate markets and walks through the eight elements every specialist engineering JD must include, from toolchain detail and standards references to seniority framing and salary signals. A free annotated JD template built for engineering roles is included.
How to Write a Job Description for Engineers: A Specialist Hiring Guide With Free Template
The most common reason a specialist engineering search fails is not the talent market and it is not the salary budget. It is the job description. When a hiring manager hands a recruiter a JD built from an HR template, it signals to passive candidates, the exact engineers you need to reach, that the organisation does not understand the discipline it is hiring for. This article shows you exactly how to write a job description for engineers in specialist disciplines: firmware, embedded software, FPGA, power electronics and functional safety, in a way that is technically credible, attractively framed and genuinely competitive in a tight candidate market.
Rob Haughian founded Vertech Group in 2017 after more than two decades placing engineers across safety-critical, embedded and electronics disciplines. A recurring pattern across those years is that the searches which stall earliest are rarely the ones with the hardest technical requirements or the most constrained budgets. They are the ones where the JD reads like a generic office role with a few acronyms inserted. A firmware engineer scanning a document that lists "experience with microcontrollers" alongside "excellent communication skills" and says nothing about RTOS, toolchain, target silicon or product context will close the tab in under thirty seconds.
Why Generic JD Templates Fail Specialist Engineering Roles
An HR-authored JD template is designed for volume hiring across multiple functions. It is built around transferable soft skills, generic responsibilities and a one-size structure that can be applied to a sales manager or a logistics coordinator with minimal editing. For a senior embedded software engineer, that structure is actively damaging.
The problem is not cosmetic. A JD that lacks toolchain context, does not specify the target architecture and says nothing about the regulatory environment the engineer will work in sends a clear signal: the organisation does not have a strong technical grasp of what it needs. Passive candidates, the ones not actively searching but open to the right opportunity, use the JD as a proxy for how technically serious the team is. If the document feels like it was written by someone who has never opened an IDE, those candidates self-select out before you ever reach them.
The downstream effect is a pipeline skewed toward active job seekers who are less discriminating about fit, a higher volume of mis-matched applicants requiring screening time, and a longer time to hire. In disciplines where qualified candidates are genuinely scarce, that attrition at the top of the funnel is expensive. For context on how constrained some of these markets are, The UK Embedded Software Hiring Market in 2026: What Engineering Leaders Need to Know sets out the structural pressures in detail.
The Eight Elements a Specialist Engineering JD Must Include
1. Role Title Precision
Job titles in engineering are more specific than most hiring managers realise. "Software Engineer" and "Embedded Software Engineer" are not interchangeable to someone working in the discipline. Neither are "Electronics Engineer" and "Power Electronics Engineer." Use the title that matches how the candidate community identifies the role. If the position is FPGA-focused, say so. If it sits within functional safety, consider whether "Functional Safety Engineer" or "Safety-Critical Embedded Developer" better reflects the actual scope.
2. Tech Stack and Toolchain Detail
Specify the tools. For embedded software, that means naming the RTOS (FreeRTOS, Zephyr, ThreadX), the target silicon family (STM32, NXP i.MX RT, TI AM62x), the IDE and compiler chain, and the version control and CI environment. For FPGA roles, state the vendor (Xilinx/AMD, Intel/Altera, Microchip) and the language (VHDL, SystemVerilog, HLS). Candidates use this to assess fit in the first thirty seconds of reading.
3. Hardware and Software Context
Is this a bare-metal role or does it involve Linux BSP work via Yocto or Buildroot? Is the engineer interfacing with custom hardware under active development or working against a stable, production platform? This context shapes how a candidate evaluates the technical challenge and their likely day-to-day environment.
4. Standards and Certifications
If the role involves safety-critical development, state the standard explicitly: IEC 61508, ISO 26262 for automotive, IEC 62304 for medical devices, DO-178C for airborne software. If EMC compliance is part of the scope, reference the relevant framework (IEC 61000, CISPR 32/35). These are not small details. A candidate with IEC 62304 process experience and one with no medical background represent very different hiring propositions.
5. Team Structure
How large is the engineering team? Is this person an individual contributor, a technical lead or a principal-level role with architectural ownership? Does the team operate in sprints, use a V-model process, or something hybrid? Senior engineers care about the quality of the people around them and the working structure they will operate within.
6. Product Stage
A greenfield development and a mature product in sustaining mode require different skills and attract different personalities. State clearly whether this is concept, prototype, pre-production, or a deployed product with a large installed base. This single piece of information helps candidates decide whether the role is the right challenge for where they are in their career.
7. Seniority Framing
Years of experience is a weak proxy. Frame seniority through scope of ownership: does this person own an entire subsystem? Do they review junior work? Are they expected to contribute to architecture decisions or execute against a defined spec? These signals communicate level far more clearly than "5-7 years of experience."
8. Compensation Signals
Address salary in the JD. More on this in the section below, but the absence of a range is itself a signal that candidates read negatively.
How to Frame Technical Requirements Without Excluding Strong Candidates
Over-specification is one of the most common and most damaging mistakes in specialist engineering JDs. A hiring manager lists every tool currently in use in the team as a mandatory requirement and then wonders why the longlist is empty.
The principle to apply is simple: separate core competency from toolchain familiarity. A firmware engineer with deep experience in RTOS-based development on ARM Cortex-M platforms will adapt to a new silicon family. An FPGA engineer who knows VHDL on Xilinx devices can learn Intel tooling. These are transferable skills. What is harder to train is systems thinking, safety process rigour, or the judgment to make good architectural decisions under constraint.
Structure your requirements in two explicit tiers. Essential requirements should cover the competencies and domain knowledge that directly determine whether someone can do the job safely and effectively from day one, or within a short ramp period. Desirable requirements cover toolchain familiarity, specific platform experience and nice-to-have domain exposure. This framing also helps your recruiter have a more honest conversation about the market. If every requirement is essential, the search becomes exponentially harder with each item added to the list.
For functional safety disciplines specifically, it is worth distinguishing between candidates who have worked within a certified process (valuable) and those who have led an IEC 61508 or ISO 26262 assessment (considerably rarer). Treating these as equivalent widens your pool without lowering your standard.
Salary and Compensation Signals: What to Include and Why
Omitting salary from a specialist engineering JD does not protect your negotiating position. It reduces application rates, particularly among the passive, higher-quality candidates who have the least incentive to go through a process blind.
Include a credible range. The range should reflect what you are genuinely prepared to pay for a well-qualified candidate, not the bottom of what you might offer a marginal one. Experienced engineers read a lowball range as a signal about how the company values the function, and they act accordingly.
Benchmarking matters here. Salaries in firmware and embedded software vary by domain, seniority and geography in ways that are not obvious. Safety-critical disciplines, particularly those touching ISO 26262 or DO-178C, command a premium over equivalent roles without that regulatory dimension. For current benchmarks relevant to firmware hiring, Hiring Firmware Engineers in the UK: Salary Benchmarks and Market Trends provides detailed context. For power electronics, Power Electronics Engineer Salary UK 2026: Complete Guide by Experience and Sector covers the equivalent ground.
Beyond base salary, include equity or bonus structure, flexible working arrangements, and any standout benefits relevant to engineers: training budget, conference attendance, hardware allowances for home lab work where applicable. These are read by candidates as evidence of a culture that takes engineering seriously.
Common JD Mistakes That Cost Engineering Teams Candidates
Using non-market job titles. Internal titles sometimes diverge from how the market describes the same role. If you post a role as "Digital Systems Architect" when the candidate community searches for "FPGA Design Engineer," you are invisible to the right people from the outset.
Writing responsibilities as a task list. "Attend daily stand-ups. Write unit tests. Contribute to design reviews." This describes process, not scope or impact. Senior engineers want to know what they will own, what they will build and what engineering problems they will solve. Write responsibilities in terms of what the engineer will be responsible for delivering, not what activities they will perform.
Burying the interesting problem. If your product runs on a custom SoC, operates in a safety-critical environment, or solves a technically hard problem at the intersection of hardware and software, that is your strongest recruiting tool. It should be in the opening paragraph, not on the third page after a list of company values.
Omitting the product and technology context entirely. A JD that says "join a fast-growing technology company" and then lists generic requirements tells a candidate nothing. What does the product do? What is the engineering challenge? What is the technology stack at system level? These are the questions a good candidate asks in the first five minutes of an interview. Answer them in the JD.
For more context on how these mistakes affect the wider hiring timeline, How Long Does It Take to Hire a Specialist Engineer? UK Benchmarks 2026 is worth reviewing before briefing your recruiter.
Free Specialist Engineering JD Template
The template below is structured for specialist engineering roles. Annotation notes appear in brackets.
Job Title: [Use the market-standard title for this discipline. Include seniority level: Senior, Principal, Lead. Do not use internal grade codes.]
Location: [State city and site. Specify hybrid working arrangement clearly, including expected on-site days.]
About the Role
[2-3 sentences describing what the engineer will own and deliver. Lead with the engineering challenge, not the company history. Example: "This is a principal-level embedded software role with ownership of the RTOS abstraction layer and BSP for a new generation of safety-rated industrial controllers targeting IEC 61508 SIL 2."]
Engineering and Product Context
[Describe the product, the technology stack at system level, and the stage of development. Mention the hardware platform, the software architecture and any standards or regulatory context. This section should allow a technically experienced candidate to assess fit before reading further.]
Technical Requirements
Essential:
- [Core language and RTOS competency. Example: "Proficient in C for bare-metal and RTOS-based development on ARM Cortex-M devices"]
- [Domain-specific process knowledge. Example: "Demonstrable experience working within a functional safety process to IEC 61508 or equivalent"]
- [Architecture or system-level skill relevant to the role scope]
- [Debugging and toolchain competency relevant to the hardware environment]
Desirable:
- [Specific silicon family or platform experience the team currently uses]
- [Secondary language or tooling that would accelerate onboarding]
- [Adjacent domain knowledge that would add value but is trainable]
Standards and Compliance
[Include only if relevant. Name the specific standard and describe the level of engagement expected: awareness, working within a process, leading assessments. Example: "Candidates should have direct experience working within a certified development process to DO-178C DAL C or above."]
Team and Reporting Structure
[State team size, the role this person reports into (title, not name), and whether there are direct reports or technical lead responsibilities. Describe the working methodology where relevant: Agile, V-model, hybrid.]
Compensation and Benefits
[State the salary range. Example: "£65,000 to £80,000 depending on experience." List key benefits: pension, bonus, equity if applicable, flexible working, training budget, other relevant items.]
Why Join Us
[2-4 sentences. Focus on the engineering opportunity: the technical challenge, the quality of the team, the product impact or market position. Avoid generic culture statements unless they are specific and evidenced. A candidate reading this section should understand what makes the engineering environment worth joining.]
If you are unsure whether a retained or contingency model is the right structure for this search, Retained vs Contingency Recruitment for Engineers: Which Model Gets You the Right Hire? covers the practical trade-offs in the context of specialist engineering hiring.
Putting This Into Practice
A well-constructed JD is not a formality at the start of a hiring process. For specialist engineering disciplines, particularly those involving functional safety, FPGA development or safety-critical embedded software, it is often the single factor that determines whether the right candidates engage at all. Take the template above, complete each section with the specificity the discipline deserves, and review it with the most senior technical person on your team before it is published. If a principal engineer on your team would read it and find it credible, a strong candidate on the market will too. Vertech Group works with engineering teams across the UK who are looking to sharpen exactly this part of the process. Send your draft JD to the team for a no-obligation review before your search goes live.
Frequently Asked Questions
What should I include in a job description for an embedded software engineer?
A strong embedded software JD must go beyond generic responsibilities and specify the exact toolchain, target hardware and operating environment. Include the RTOS or embedded Linux distribution in use, the processor architecture (such as ARM Cortex-M or Cortex-A), and any relevant communication protocols like CAN, SPI or I2C. Reference the coding standards your team follows, whether that is MISRA C, AUTOSAR or an internal style guide, and be clear about any functional safety obligations such as IEC 61508 or ISO 26262. Candidates with niche embedded skills will filter themselves in or out based on this detail, which saves time on both sides. See our guide to the UK embedded software hiring market for further context on what candidates in this space expect from a job posting.
How do I write a job description for a firmware engineer?
Writing a JD for a firmware engineer requires precise hardware context that most HR templates never prompt you to include. State the microcontroller or microprocessor family, the IDE and debugger in use (such as IAR, Keil or GCC with GDB), and whether the role involves bare-metal development, an RTOS or a mix of both. Specify the communication interfaces the engineer will work with, the production volumes involved and whether the role sits closer to hardware bring-up or application-layer development. If functional safety certification is part of the remit, name the standard explicitly because firmware engineers with that background are a distinct and smaller candidate pool. Our salary benchmarks for firmware engineers in the UK can help you frame the compensation section accurately.
Should I include salary in an engineering job description?
Yes, including a salary range in an engineering job description significantly improves application rates, particularly in specialist disciplines where candidates have multiple options and will not waste time on roles with unknown compensation. A published range also signals transparency and respect for candidates' time, which matters in markets where passive candidates are the majority. You do not need to publish a precise figure: a realistic band of ten to fifteen thousand pounds is sufficient to qualify interest without overcommitting. Omitting salary is one of the most common reasons specialist engineering roles attract low or poor-quality response, particularly at senior level where candidates are selective about the opportunities they pursue.
How specific should technical requirements be in an engineering JD?
Technical requirements in an engineering JD should be specific enough that a qualified candidate can self-identify confidently and an unqualified candidate self-selects out. For specialist roles in firmware, FPGA, embedded software or power electronics, this means naming actual tools, standards and architectures rather than using category-level terms like 'embedded experience' or 'knowledge of electronics'. A JD that lists Vivado, VHDL and experience with Xilinx UltraScale devices will attract FPGA engineers far more effectively than one that asks for 'programmable logic experience'. The risk of being too specific is overstating requirements and shrinking your pool unnecessarily, so distinguish clearly between essential skills and desirable ones. Getting this balance right is where specialist recruiters add tangible value because they know which requirements are genuinely screening criteria versus nice-to-haves.
What job title should I use for a specialist electronics engineer?
The job title should match the terminology most commonly used by candidates searching for roles in that discipline, not the internal job title your organisation uses if the two differ. For power electronics roles, titles such as Power Electronics Engineer, Power Conversion Engineer or Magnetics Design Engineer perform better than broader titles like Electronics Engineer or Hardware Engineer. For embedded and firmware disciplines, be specific: Firmware Engineer, Embedded Software Engineer and FPGA Engineer each attract different candidate profiles and should not be used interchangeably. Seniority framing matters too: Senior, Lead and Principal signal different levels of autonomy and responsibility and will affect who applies. If your internal title is unusual, consider using the market-facing title in the advert and noting the internal title within the body of the JD.
How long should a job description be for a senior engineering role?
A job description for a senior engineering role should be long enough to give a technically credible picture of the work and short enough to be read in full, typically between four hundred and seven hundred words for the candidate-facing version. Senior engineers are assessing fit as carefully as you are, so a JD that is too brief signals that the hiring team has not thought clearly about the role. Equally, a JD that runs to fifteen bullet points of requirements and three paragraphs of boilerplate company description wastes the space where technical substance should sit. Focus word count on the technical environment, the scope of the role and the problem the engineer will be solving. Supporting context such as team structure, reporting lines and development opportunities should be present but concise.
Why am I not getting applicants for my specialist engineering vacancy?
Low application rates for specialist engineering vacancies are almost always caused by one or more of four issues: a vague or generic JD that fails to signal genuine technical depth, a missing or uncompetitive salary indication, a job title that does not match how candidates search, or over-specified requirements that deter strong candidates who do not meet every listed criterion. In tight candidate markets for disciplines like firmware, FPGA or power electronics, the pool of actively searching engineers is small and those engineers are comparing multiple opportunities simultaneously. A JD that reads like a generic HR template will be ignored in favour of one that demonstrates the hiring team understands the work. If the vacancy has been live for several weeks without quality response, reviewing and rewriting the JD is the first step before increasing advertising spend or widening the search. Our guide to time-to-hire benchmarks for specialist engineers gives useful context on realistic expectations for these disciplines.