Careers
At CSL, we’re proud to foster a positive, inclusive culture that values collaboration and continuous improvement. Our shared values motivate us to embrace each person’s unique skills and talents for shared success. Join our dynamic team today!

Collaboration
We build strong inter-team relationships and encourage knowledge sharing across the whole business.
Continuous Improvement
Inspiring our team members to find small and big ways to grow as individuals and as a company.
Customer Obsessed
Dedicated to delivering the best solutions and support in the business.
I’ve been working at CSL for two years and I’ve had two promotions within that time. There is a hierarchy, but you can’t see it because everyone works so well together. It’s a really fun place to work, there’s always something going on, inside and outside the office.
I would recommend CSL to anyone who would like a modern and flexible work-life balance, as well the chance to progress and learn more. There’s opportunity here to expand your knowledge, grow as a person and build a nice career.
My greatest career achievement is that I started at CSL as a Junior Developer and I’ve grown all the way to Product Owner. To me, that’s absolutely astonishing!
CSL has helped me develop so much, both personally and professionally. Every single day is different and a challenge, and it’s never boring!
CSL has a community feeling. I look forward to being there on a Monday, rather than leaving on a Friday! There’s no other way I could explain it – I love working here.
You get to work alongside some really great people and the company has really given me the opportunity to develop my own skills since I started here.
Current vacancies
Explore our open positions and find your dream job at CSL. Or simply contact us to learn more. We’d love to hear from you.
Senior Software Engineer (Python)
Who Are CSL Looking For?
To be a successful Senior Software Engineer, you must have strong technical expertise and problem-solving skills, capable of tackling complex development backlog tickets with confidence. You are expected to take ownership of backlog tasks, delivering high-quality implementations that align with coding standards, business objectives, and project timelines. Comfortable collaborating with peers and supporting other colleagues, you ensure that solutions are efficient, scalable, and maintainable, contributing to the overall success of the Signalling Engineering team.
The Role:
Software Engineers are responsible for engineering all of the systems, products and services that power CSL.
This means being responsible for the software design, code implementation, test coverage and operation of effective software and supporting toolsets within specific business and technology domains.
The role holder spends their time Exploring, Investigating, Developing, Enhancing and sometimes Decommissioning our provided Tools, Product and Services all with the aim of delivering the backlog, roadmap and overall corporate strategy with their success being measured by outcome value achieved and alignment to the agreed priorities.
This involves translating requirements into quality (meet required metrics) technical solutions then creating code for products and services adhering to our engineering standards that’s maintainable, supportable and with minimal risk to operate and able to be deployed safely into a production environment for use by customers and colleagues.
The Senior Software Engineer is a trusted expert within their Centre of Excellence (domain) for complex implementations, providing technical solutions and guidance. A Senior Engineer is expected to resolve challenging problems efficiently, leveraging their deep understanding of the design, topology, and methodology of their domain. They play a key role in ensuring successful outcomes through collaboration and technical capability.
Key to being successful is being responsible for creating a diverse, inclusive, and welcoming environment. It is essential to ensure that everyone feels supported to be their authentic self, can grow, develop, and positively contribute to delivering value.
Key Responsibilities:
People
- Able to work in close partnership with and under the guidance of others – Heads of Engineering, Solution Architect, Technical Programme Manager, Engineering Leads and Principal Engineers.
- Provide technical knowledge, insight, and guidance to other engineers as required.
- Review and give constructive feedback on others’ code through peer review processes.
- Support product and other stakeholders as required in shaping the Product roadmap.
- Be knowledgeable on their domain (Centre of Excellence) they are part of and its place alongside other domains and therefore are comfortable when others consult with them.
- Work with Principals and Engineering Leads in the broader Signalling engineering Team to shape, document, and enhance the best practices and technology standards.
Process
- Effectively participate in the team’s software development methodologies, such as pairing, code and documentation reviewing, testing, and continuous delivery.
- Work with project, product, and technical leads to design software and create implementable specifications and tasks at product and roadmap level.
- Ensure that the team’s technical documentation is always complete, accurate, and reliable.
- Provide frequent and accurate updates on ticket progress, expected timelines, work level outstanding, dependencies, risks, issues and duration spent to Delivery Programme Managers.
- Lead troubleshooting and resolution of issues throughout the product life cycle, including providing out-of-hours support for incident resolution and actively contribute within retrospectives.
- Ensure unit testing is always implemented alongside their code and is always fit for purpose.
- Investigate and evaluate technologies that could provide future benefit to CSL through research and experimentation.
Technology
- Comfortable and dependable in the design and development of effective software that meets complex, strategic business needs for the immediate roadmap and helps to achieve broader CSL objectives.
- Ensures their approaches, code, documentation and testing is aligned to Technology Standards and Practices.
- Ensure the code delivers works as expected (aligned to Acceptance Criteria and Definition of Done), meets wider specifications, reliability, cost efficiency and performance goals.
- Ensures the product and services is integrated with monitoring and support tooling aligned to its operating environment.
Ideal Experience and Knowledge Sought:
- Skilled in designing and building reliable software for large-scale applications in complex environments.
- Experienced in popular programming frameworks, development tools, databases, and deployment processes.
- Capable and comfortable in guiding others, working with stakeholders outside of their immediate team such as Product Owners/Managers, and influencing key decisions – including communicating concerns or issues.
- Demonstratable experience and committed to high coding standards, including being a recognised practitioner of test-driven development and software quality assurance methodologies.
- Previous experience and understanding of what it takes to ensure product changes succeed, through applying best design practices, and by keeping up with new technologies.
The above should not be viewed as an exhaustive list of skills and/or qualifications but rather CSLs view on the ideal candidate. If you feel you can meet three quarters or more of the requirements and learn the rest with support from CSL please apply now with an indication of your salary expectations for the role.
CSL operates as an equal opportunities employer and we welcome all applications regardless of gender, race, disability, sexual orientation, religion or belief, age, gender reassignment, marital or civil partnership status, pregnancy or maternity.
Sector Specialist – Utilities
Who Are CSL Looking For?
CSL is seeking professionals with deep expertise within the utilities sector, who understand the regulatory landscape, market dynamics, and the wider utilities ecosystem, with particular emphasis on the need for resilient connectivity. The ideal candidate will have a strong grasp of sector‑specific challenges facing utility providers and be able to diagnose complex operational and commercial problems, tailoring solutions to meet the unique needs of the industry. They will be experienced in driving success within the utilities vertical and bring established customer and partner relationships that can generate direct sales opportunities.
Credibility with senior decision‑makers across utility organisations is essential, alongside a strong understanding of CSL’s utilities‑focused use cases. The role will also support marketing activity by contributing sector‑relevant insights, thought leadership, and messaging that resonates with utility audiences. In addition, the individual will work closely with product and marketing teams, providing market insight to help shape solutions and offerings that address current and emerging challenges across the utilities sector.
Duties & Responsibilities:
This role will encompass a range of responsibilities including but not limited to:
- Seen as experts in their field
- Understands the regulations, ecosystem and wider stakeholder map of their sector
- Responsible for driving sector CSL brand awareness
- Sizes the sector
- Split sector as required in to sub-sectors to aid targeted marketing efforts
- Define end customer level problems and work with product to define CSL use cases to resolve
- Aim: To get CSL to be seen as the only choice for connectivity in that sector
- All sector specialists to be trained to have deep knowledge of CSL’s sector agnostic product set.
- Awareness of all key use cases for CSL solutions within their sector
- All sales staff to be trained in the ‘CSL Sales Way’ building on success in B&S
Key Skills & Qualifications Sought:
- Relationship builder
- Analytical
- Strong sector specific networker
- Problem solver
- Speaks language of the industry
- Focused on credibility
- Experienced
- Role definitions developed for sector specialists
- Search for resource within known end customers (e.g. Thames Water), industry associations, industry specific recruiters
The above should not be viewed as an exhaustive list of skills and/or qualifications but rather CSLs view on the ideal candidate. If you feel you can meet three quarters of the requirements and learn the rest with support from CSL please apply now with an indication of your salary expectations for the role.
CSL operates as an equal opportunities employer and we welcome all applications regardless of gender, race, disability, sexual orientation, religion or belief, age, gender reassignment, marital or civil partnership status, pregnancy, or maternity.
Customer Service Manager
Who Are CSL?
- We are a leading international critical IoT connectivity expert provider specialising in sectors including Building & Security, Healthcare & Telecare, Infrastructure, Retail & Hospitality, and Transport & Logistics.
- We are a rapidly growing, private equity-backed company with an international presence, operating across the UK, Ireland, the Nordics, Benelux, Spain, and North America.
- We have completed 7 acquisitions, with each acquired business adding further expertise and scale to our market-leading propositions.
- We have over 30 years of experience and now operate over 3 million active IoT connections around the world.
- We now have over 270 employees within the Group – and this is growing all the time.
- We are ranked 10th in the 2025 UK’s Best Workplaces™ by Great Place To Work®
- Our high performing team is renowned for delivering leading solutions and services, backed up by world-class customer support across markets that demand nothing less than absolute certainty.
- Our products and solutions have won over 20 awards across a range of industries.
Who Are CSL Looking For?
You should have extensive experience in customer services or a contact centre environment. Working in an electronic or communications production environment. You should be energetic, keen to learn using your own initiative and be able to work well with others with a positive approach always. People skills and leading from the front line should come naturally, setting the example for all others to follow. You should have an acute attention to detail and impeccably high standards enabling you to consistently look to raise the bar to improve business practices. You motivate by creating a performance-centric environment that provides clear focus and rewards delivery of objectives. Above all, this role requires an individual with a passion to provide excellent service often working under pressure in a busy work environment. Those that are successful in the role are typically capable of processing relatively complex logical concepts and/or have an interest in technology, computing or electronics.
The Role:
Reporting to the Head of Customer Services the successful candidate will manage a team of Team Leaders, Technical Support Advisors and Quality Assurance advisors handling inbound support requests via phone, email and online chat to our B2B customers. As manager of the team there will be a drive to create a culture of providing excellent customer service and high-quality technical support. They must be well organised, self-motivated, punctual, and flexible in their approach to work including being able to prioritise a variable workload and know when to escalate a problem appropriately. They will be required to communicate effectively with customers at all levels, often whilst under pressure. Whilst demonstrating that they are an excellent team player, the candidate will have a solid background working within a busy service team.
Duties & Responsibilities:
This role will encompass a range of responsibilities including but not limited to:
- Overall responsibility to lead, inspire, develop and motivate Team Leaders to deliver a best-in-class customer experience.
- Manage all aspects of the team’s day-to-day management and work allocation to ensure performance is in line with agreed KPIs & SLAs.
- Act as an escalation point/go-to person for team members
- Overall responsibility of the training and development of your team including managing the Quality Assurance program.
- Support colleagues with the use of in-house tools, by providing necessary training and advice.
- Carry out all tasks in an efficient, professional and courteous manner, leading by example to the Customer Service Department.
- Resolve 2nd/3rd line customer escalations by liaising with various departments to obtain resolution.
- Overall responsibility for recruitment, appraisal and absence management process for the team.
- Oversee the day-to-day management of the office environment, including building access control, health and safety compliance, and coordination of facilities-related activities.
- Manage employee relations matters, including disciplinary processes and dismissals, ensuring all actions are handled fairly, consistently, and in line with company policy and employment legislation.
- Innovate and implement new initiatives whilst looking to refine processes to further improve the customer experience
Key Skills & Qualifications Sought:
- Experience of managing customer service teams for a minimum of 5 years required (essential)
- Qualification / Degree in Management
- Experience in Customer Services or Contact Centres required
- Experience in an electronics or communications industry required
- Experience in recruitment and performance evaluation required
- Excellent interpersonal and communication skills both written and verbal required
- High-level problem-solving abilities
- Excellent leadership and organisational skills.
- Ability to motivate and inspire to bring out the best in individuals
- Ability to work well under pressure.
- Confident, clear and professional telephone manner.
- Strong time management and self-motivation skills
- Proficient user of MS Office, with an intermediate skill level in Excel and Word.
- Experience of CRM systems eg. Salesforce
The above should not be viewed as an exhaustive list of skills and/or qualifications but rather CSLs view on the ideal candidate. If you feel you can meet three quarters of the requirements and learn the rest with support from CSL please apply now with an indication of your salary expectations for the role.
CSL operates as an equal opportunities employer and we welcome all applications regardless of gender, race, disability, sexual orientation, religion or belief, age, gender reassignment, marital or civil partnership status, pregnancy, or maternity.
Sales Executive – Fire, Security & IoT (Hybrid Role) Benelux-DACH
Who Are CSL?
- We are a leading international critical IoT connectivity expert provider specialising in sectors including Building & Security, Healthcare & Telecare, Infrastructure, Retail & Hospitality, and Transport & Logistics.
- We are a rapidly growing, private equity-backed company with an international presence, operating across the UK, Ireland, the Nordics, Benelux, Spain, and North America.
- We have completed 7 acquisitions, with each acquired business adding further expertise and scale to our market-leading propositions.
- We have over 30 years of experience and now operate over 3 million active IoT connections around the world.
- We now have over 270 employees within the Group – and this is growing all the time.
- We are ranked 10th in the 2025 UK’s Best Workplaces™ by Great Place To Work®
- Our high performing team is renowned for delivering leading solutions and services, backed up by world-class customer support across markets that demand nothing less than absolute certainty.
- Our products and solutions have won over 20 awards across a range of industries.
Who Are CSL Looking For?
You will own and develop existing Fire & Security customer accounts. Grow alarm signalling and drive adoption of IoT solutions. Prospect and generate new revenue within existing customers and Identify and win new IoT opportunities beyond Fire & Security. Build and manage a strong sales pipeline across all areas.
Duties & Responsibilities:
This role will encompass a range of responsibilities including but not limited to:
Account Management
- Build long-term relationships with installers, ARCs, and key customers
- Drive retention and revenue growth within existing accounts
- Understand customer needs and align CSL solutions accordingly
Growth within Existing Accounts
- Identify new opportunities for signalling upgrades and IoT adoption
- Cross-sell CSL’s full product and service portfolio
- Maximise value from existing customer base
New Business – IoT & New Sectors
- Generate new business opportunities beyond traditional F&S markets
- Self-source and convert new opportunities into revenue
- Target sectors such as infrastructure, utilities, retail, and other IoT applications
Pipeline & Performance
- Maintain accurate pipeline and forecasting
- Deliver against monthly, quarterly, and annual targets
- Manage time and territory effectively
Market Engagement
- Represent CSL at industry events and customer meetings
- Build relationships across partners, manufacturers, and stakeholders
Key Skills & Qualifications Sought:
- Strong background in account management and new business sales
- Proven ability to grow revenue within existing accounts
- Experience or interest in IoT and/or Fire & Security markets
- Excellent communication and relationship-building skills
- Highly organised, self-motivated, and target-driven
- Ability to manage multiple opportunities simultaneously
- Full driving license
- Growth across existing Fire & Security accounts
- Strong pipeline across signalling and IoT opportunities
- New business wins from both existing and new customers
- Expansion of CSL’s IoT footprint beyond traditional markets
What we offer:
At CSL, you will join an international organisation with the dynamics of a small, ambitious team, with our office location in Roermond (NL) as your base. Other important things we offer include:
- Hybrid working is possible; the role is primarily a field-based position in which you will frequently travel to customers and events.
- A company car.
- A company laptop and phone.
- Access to professional sales tools and systems to support your success.
- The opportunity to work with innovative IoT solutions in a rapidly growing international market.
- A bonus scheme.
- A market‑competitive salary.
The above should not be viewed as an exhaustive list of skills and/or qualifications but rather CSLs view on the ideal candidate. If you feel you can meet three quarters of the requirements and learn the rest with support from CSL please apply now with an indication of your salary expectations for the role.
CSL operates as an equal opportunities employer and we welcome all applications regardless of gender, race, disability, sexual orientation, religion or belief, age, gender reassignment, marital or civil partnership status, pregnancy, or maternity.