We’re Doing Important Work
Help us connect more data, more frequently!
Our team, our business, our product, is dedicated to meeting customer need to transmit data through otherwise impossible or challenging mediums and locations everywhere. Whether it’s from the seabed or and across the water’s surface or through manmade steel and concrete structures, CSignum’s modem is a resilient, silent, and invisible alternative to existing technologies located in challenging shallow water or on-shore environments.

Embedded Software Engineer
CSignum is the only wireless communications provider that enables transmission of data through the water-air boundary, water column, seabed and subsea structures using our unique technology. Our patented communication, monitoring and navigational platform and solutions help global aquaculture, ocean observing, offshore wind, and oil and gas industries. Armed with dynamic readings, our customers can make smart, data-driven decisions for any situation they may encounter.
Purpose of the Role
Are you an independent thinker with a knack for diving into code and solving complex problems? We’re looking for a determined individual who thrives on getting things done and making a real impact. This will be facilitated by joining a highly motivated and passionate software team that embraces best practices, continuous improvement and supporting each other.
We are seeking a dedicated Software Development Engineer to support the development of our innovative products and IoT systems. This role involves hands-on testing at our Bathgate office, requiring a hybrid work pattern. As a permanent member of our engineering department, you will report directly to the Head of Engineering.
Key Responsibilities
The candidate is expected to be able to work under their own initiative and be capable of leading/completing embedded firmware features of the product by themselves, while cooperating with other disciplines.
Your key responsibilities will include:
- Produce reliable C code that meets the requirements in the project timescales.
- Lead and participate in code reviews.
- Test code during unit test, integration test, design verification test, acceptance test and compliance testing.
- Setup, modify, fix and run regression testing.
- Work closely with electronics team to ensure hardware and software work as intended.
- Support on-site and remote test activities.
- Work as part of the software team to ensure a cohesive software platform.
Essential Experience
The ideal candidate will have experience in the following areas:
- Excellent problem-solving abilities and a results-driven mindset.
- Proven experience working in a formal software development environment.
- Extensive experience with the C programming language with embedded systems to meet product requirements.
- Using revision control systems.
- Working in an agile environment.
- Proven hands-on delivery of working software.
- Automated regression testing.
- IOT systems.
Highly Desirable Experience
It would be very beneficial for the candidate to have experience in some or all of the following areas:
- STM32 experience.
- Bit bucket, Jira and Scrum
- Proven experience writing software test procedures.
- Capable of reading schematics, using oscilloscopes and logic analysers
- Developing Windows based applications.
Desirable Experience
It would be beneficial for the candidate to have experience in some or all the following areas as we offer a full IOT service including cloud infrastructure and user interfaces:
- Customer facing dashboards – Grafana
- Native cloud development – Linux, Python, Flask, MQTT, APIs, Databases
- Azure Function App, Storage Files, applications setup experience
- Continuous Integration/Continuous Delivery (CI/CD) – Jenkins
- GUIs written in Qt for Python.
Qualifications & Certifications
Minimum 2:1 Engineering degree / Computer Science degree or equivalent.
Relevant working experience for the level of the role.
Production Technician
Location: Bathgate
Reports To: Service Delivery Manager/SCA Mgr
Type: Full-time / Permanent
Fixed-Term Contract — Important Notice
These roles are offered on a fixed-term basis to approximately Q1 2027. CSignum’s operational plan is to transition assembly and test activities to a Contract Manufacturing Service (CMS) partner at that point. We are committed to full transparency from the outset and will engage openly with post-contract options as that date approaches.
About CSignum
CSignum Ltd is a Scottish technology company that has developed and patented Electromagnetic Field Signalling (EMFS), a wireless communication technology designed for underwater, under ground, submerged environments where conventional wireless systems cannot operate and where access and conventional methods are neither practical or appropriate. Our monitoring systems are deployed by water utilities, offshore energy companies, and maritime organisations across the UK, Europe, North America, and Asia-Pacific.
We are currently preparing ourselves for a ramp in demand and these roles are central to our ability to build, test, and deliver products to a growing international customer base.
Role Purpose
The Production Technician will be responsible for the hands on assembly, testing, potting, and quality assurance of CSignum’s EMFS hardware systems. Working closely with the engineering and operations teams, and directed by the Service Delivery Manager, the postholder will ensure that units leaving the facility meet defined performance and quality standards, are correctly documented.
This is a practical, detail-oriented role suited to someone who takes pride in the quality of their work, can follow technical procedures with precision, and is comfortable working in a small, fast-moving team where flexibility and initiative are expected.
Key Responsibilities
Assembly & Build
- Assemble CSignum hardware units in accordance with defined build procedures and engineering drawings
- Handle and solder electronic components, and connectors to the required standard
- Pot the assemblies with resin
- Complete cable preparation, harness assembly, and mechanical integration tasks
- Work to tight tolerances and maintain assembly quality throughout the build process
Testing & Commissioning
- Carry out functional and performance testing of completed units using defined test rigs and procedures
- Diagnose and resolve faults identified during testing, escalating where required
Quality Assurance & Documentation
- Complete build records, test logs, and quality documentation accurately and on time
- Identify and report non-conformances, contributing to root cause analysis where required
- Maintain traceability of components and assemblies through the production process
- Support continuous improvement activities within the production function
Stores & Materials
- Receive, inspect, and log incoming components and materials
- Maintain an organised and clean working environment
- Flag stock shortages or quality concerns to the operations lead in a timely manner
General
- Assist with packaging and shipment preparation
- Contribute positively to a small, collaborative team environment
- Comply with all relevant health, safety, and environmental requirements
Skills & Experience
Essential
- Demonstrable experience in electronics assembly, electromechanical build, or a related technical discipline
- Proficiency in soldering and inspection
- Ability to read and work from engineering drawings, wiring diagrams, and assembly procedures
- Experience of functional testing and use of test equipment
- Strong attention to detail and a systematic approach to quality
- Good written communication skills for completing production documentation
- Self-motivated and capable of working effectively with limited supervision
Desirable
- Experience working in a low-volume, high-mix manufacturing environment
- Exposure to IoT or wireless communications hardware
- Knowledge of ERP or production management systems
- Experience contributing to or working within an ISO 9001-certified quality management system
Personal Attributes
- Methodical and precise — you take quality personally
- Adaptable — comfortable working across a range of tasks in a small team
- Proactive — you raise issues early and propose solutions
- Reliable — you deliver consistently and communicate clearly when things change
- Comfortable with ambiguity — we are a growing business and processes continue to evolve
What We Offer
- A defined and transparent fixed-term role with clear scope and a purposeful contribution
- Hands-on involvement in an innovative, internationally deployed technology product
- Training on specific processes
- A collaborative, team working environment
- Competitive salary commensurate with experience [To Be Confirmed]
- Opportunity to develop skills in subsea hardware, IoT connectivity, and environmental monitoring technology
- Active consideration of post-contract options as the transition date approaches
How to Apply
Please submit your CV and a brief cover letter outlining your relevant experience and why this role appeals to you.
CSignum is an equal opportunities employer. We welcome applications from candidates of all backgrounds. Candidates must have the right to work in the UK.
This job description is indicative of the range of duties expected and is not exhaustive. Responsibilities may be adjusted as the business develops.
Contract Manufacturing Manager
Location: Bathgate
Reports To: Chief Operating Officer (COO)
Type: Full-time / Permanent
About CSignum
CSignum is revolutionising the way critical wireless data is transmitted, breaking through the barriers between air and water in both fresh and salt-water environments.
This innovation is pivotal for assisting in the effective monitoring of pollution and environmental conditions in the world’s oceans, lakes, and rivers, while also facilitating data communication in areas that were previously impossible to reach, such as underground or beneath the hull of marine vessels.
CSignum brings the connectivity required for networking the Internet of Underwater Things (IoUT).
We have commenced scaling up production of our unique solutions and are now looking for a Contract Manufacturing Manager to help deliver reliable, high-quality products to our global customers.
Job Summary
The Contract Manufacturing Manager at CSignum will lead and manage all external manufacturing, packaging, and logistics operations. This role ensures our contract manufacturers (CMs) meet quality, cost, and delivery standards, while also overseeing how finished products are packaged and shipped to customers or partners. This position is key to CSignum’s growth as we transition from prototype to volume production and scale globally.
Key Responsibilities
Vendor & Production Management
- Identify, qualify, and manage CSignum’s contract manufacturing partners.
- Act as the primary liaison between CSignum and third-party production facilities.
- Plan and coordinate manufacturing schedules in line with internal forecasts.
- Track and improve performance metrics including yield, lead time, and delivery rates.
- Ensure compliance with all manufacturing regulations, safety practices, and CSignum quality standards.
Packaging & Logistics Oversight
- Define packaging specifications aligned with CSignum’s branding, product protection, and sustainability goals.
- Coordinate with logistics partners and freight providers to meet delivery timelines and ensure shipping documentation and customs compliance.
Cost, Quality, and Compliance Management
- Negotiate pricing, terms, and service levels with external vendors and CMs.
- Conduct regular audits and supplier reviews.
- Drive continuous improvement in cost, quality, and delivery performance.
- Maintain detailed documentation of supplier contracts, quality agreements, and logistics processes.
Cross-functional Collaboration
- Work closely with Engineering, Delivery, and QA teams at CSignum to align manufacturing readiness with new product launch timelines.
- Support strategic planning for production scaling and supply chain risk mitigation.
Requirements
- 5+ years’ experience in contract manufacturing management, including packaging and logistics.
- Experience in electronics, hardware, or IoT manufacturing environments preferred.
- Strong negotiation, vendor management, and cross-functional communication skills.
- Proficiency with ERP/MRP systems.
- Willingness to travel to supplier and manufacturing sites as required.
Desirable
- Knowledge of sustainable packaging practices and customs/export documentation.
- ODOO experience
