Sequentec Ltd
Senior Controls and Software Engineer
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About us
We are a small engineering consultancy in Edinburgh, with a mix of software and electrical/electronic engineers. We work on a variety of projects involving renewable energy devices and other green technology.
We design and build systems using industrial off-the-shelf equipment, including low voltage variable frequency drives and power converters, PLCs, communications and networking equipment and servers. Our systems integrate with a wide range of devices such as novel electric and hydraulic-electric hybrid power generators, small consumer wind turbines, and subsea equipment. We design reliable networks for deployments where failure means dispatching a repair ship rather than opening a cabinet, and run cloud servers for centralised control, data logging and visualisation.
About the role
We are looking for an experienced engineer who enjoys wearing many hats and working across varied technologies, and who thrives when given responsibility and autonomy. As part of a small team, you will work directly with clients and suppliers, manage your own tasks and priorities, and take on a mix of design, specification, and hands-on implementation.
You will work on multiple projects at once. On some, you will own the entire project from initial client discussions to on-site commissioning. On others, you will join a project in progress and will be expected to become productive quickly. You will regularly be asked to learn unfamiliar technologies.
We work with AI on a daily basis, balancing the productivity gains of AI-built tooling and scripts with the philosophy that an industrial codebase must be simple, reliable, and thoroughly understood by its human builders.
Requirements
- At least five yearsโ professional software development experience, including:
- Significant experience with at least one programming language
- Working directly with clients or with multiple internal teams
- End-to-end system design and operation: requirements gathering, technology selection, architecture, delivery planning, development best practices, testing, deployment, documentation, and ongoing maintenance
- Strong communication skills: writing proposals and reports, collaborating with colleagues, explaining decisions to stakeholders. Experience working with engineers in other disciplines (e.g. electrical, mechanical) is a plus.
- A track record of self-directed learning
- Education: RQF level 3/SCQF level 6 or above โ e.g. A-levels or Highers.
- Fluency in both spoken and written English.
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Useful, but not essential
- Programming languages and environments:
- IEC 61131-3 visual programming languages (CFC, SFC)
- Python and C
- Embedded programming (ESP32, PIC)
- MATLAB and Simulink
- Industrial controls and hardware:
- PLCs, DCS and/or SCADA systems
- Integration with hardware devices over CAN, Modbus, Profinet, serial, etc.
- Familiarity with electronics and control systems, including reading wiring diagrams and fault-finding
- Building usable and attractive HMIs
- Infrastructure:
- Linux server administration
- Database management (MySQL, PostgreSQL, TimescaleDB)
- Network design
- Cybersecurity (servers, networks/VPNs, industrial/OT)
- Amazon Web Services or other cloud platforms
- Designing for software, control system, and network reliability
- Experience with agentic LLMs in software development
Salary range
Full-time: ยฃ50,000-ยฃ65,000
Part-time: pro rata depending on hours
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Location
Our projects usually involve physical hardware (servers, PLCs, networking hardware, instrumentation), so we work mainly from our office in Loanhead, Edinburgh.
Hours
35 hours per week full-time, part-time available by arrangement. Core full-time office hours are 10am-3pm Monday-Thursday. Flexible start/finish times are available outside these hours, although commissioning or cross-time-zone client meetings may sometimes require you to be online earlier or later. We work from home Friday mornings and finish at lunchtime.
Travel
You may occasionally be asked to travel to a client site in the UK or (very rarely) abroad, subject to your availability. A driving licence and your own vehicle are useful for this, but they are not required; mileage can be expensed.
Employment terms and benefits
All appointments are subject to a three-month probation period.
We are unable to assist with visa sponsorship โ you must be eligible to work in the UK.
We offer 33 days holiday allowance per year, including bank holidays; part-time holiday allowance is pro rata. We also offer a salary sacrifice pension scheme with employer contribution.
How to apply
Please email a current CV to enquiries@sequentec.co.uk. If you would like to have a chat about the role or ask any questions, please give us a call on 0131 202 6444.
Please note that we do not accept applications from recruitment agencies.
Sequentec is an equal opportunities employer. We welcome applications from everyone, regardless of age, disability, sex, race, religion or belief, sexual orientation, gender identity or marital status. If you need any adjustments to the application or interview process, please let us know.
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