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.
Perks for a balanced work-life:
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 Product Manager – IoT Connectivity Management Platform (CMP)

Who Are CSL Looking For?
Are you ready to shape the future of IoT, revolutionising the way businesses harness the power of critical connectivity? We’re seeking a customer-obsessed Senior Product Manager, to lead our cutting-edge IoT Connectivity Management Platform (CMP) and take it to new heights. This is your opportunity to drive growth through innovation, inspire change, and leave a lasting impact on the tech industry!
Duties & Responsibilities:
This role will encompass a range of responsibilities including but not limited to:
- Play a key role in developing the product strategy and roadmap, setting the course for a connected future in alignment with our company’s bold vision.
- Dive deep into market research, competitive analysis, and customer insights, uncovering hidden opportunities and emerging trends that will propel our platform forward.
- Rally cross-functional teams around our vision, collaborating with engineering, design, and operations experts to bring market-leading product features and enhancements to life.
- Optimise the customer journey by leveraging deep understanding of user needs and behaviour, ensuring seamless and intuitive user experiences across the platform.
- Forge powerful alliances with sales, marketing, and customer support teams, devising go-to-market strategies that ensure the seamless adoption and enthusiastic endorsement of our platform.
- Keep a watchful eye on product performance, user engagement, and industry developments, leveraging data and insights to fuel continuous improvement and innovation.
- Be a face and voice of our CMP, championing its value at customer meetings, industry events, analyst engagements; cultivating industry relationships and creating advocates for our solutions along the way.
Key Skills & Qualifications Sought:
Do you have what it takes to be out next Senior Product Manager? Are you:
- Armed with a Bachelor’s degree in Engineering, Computer Science, Business, or a related field? (A Master’s degree would be a plus!).
- Adept at technical leadership within a business that combines software and hardware in its product complexity, ideally in the M2M/IoT/Telecommunications/Managed Services spaces.
- Experienced in the UK and Global telecommunications industry, including expertise of all major network standards (e.g. 2G to 5G) and all SIM, eSIM, iSIM technologies and standards.
- A natural problem-solver, with demonstrated success in building IoT products, applications and platforms at scale including Connectivity Management Portals (CMPs).
- Able to bring experience of SaaS propositions, data platforms and visualisation tools, targeting simplicity whilst spanning a multi-product portfolio of complex solutions.
- A strategic thinker and data-driven decision-maker, able to synthesize complex information and uncover hidden opportunities?
- A natural leader, communicator, and collaborator, capable of rallying diverse teams around a shared vision?
- Intimately familiar with the IoT ecosystem, its players, and emerging trends?
- Well-versed in Agile methodologies and project management tools like Jira, Asana, or Trello?
- Experience of working in a Private Equity backed business is highly desirable but not a must.
In return for your passion, expertise, and drive, we offer a highly competitive salary and benefits, and a work environment that fosters innovation and creativity. If you’re a product visionary, ready to define the future of IoT connectivity management, we want you on our team!
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.
Senior QA Engineer

Who Are CSL Looking For?
We are seeking a highly skilled and detail-oriented Senior QA Engineer to join our growing team. This individual will be responsible for overseeing the quality assurance processes for the end-to-end service we are building, ensuring the functionality, security, usability, and performance of our products across all stages — from customer-facing websites and e-commerce features to backend provisioning and billing systems.
You will be working closely with cross-functional teams, including Business Process Owners, Product Managers, Developers, and DevOps Engineers, to ensure that the quality of our platform meets and exceeds customer expectations. This role will be key in defining and executing the testing strategies that drive the success of IoT.Live.
IoT.Live is an innovative online service that offers a full end-to-end solution for selling, delivering, and managing critical connectivity products. Our platform includes a website for customer engagement, an e-commerce store for product purchases, a centralized management platform for provisioning and monitoring, and a sophisticated billing system. We are looking for a Senior QA Engineer to help ensure the highest quality and performance standards across our entire suite of products and services.
Duties & Responsibilities:
This role will encompass a range of responsibilities including but not limited to:
• End-to-End Testing: Design and implement comprehensive test plans, cases, and scripts for all aspects of our end-to-end service, including website, shop, centralized management platform, and billing systems.
• Manual Testing: Conduct thorough manual testing of the platform, including exploratory, regression, functional, and usability testing.
• Bug Identification & Reporting: Identify, report, and track issues using our issue tracking system. Work closely with the development team to resolve issues in a timely and efficient manner.
• Cross-Functional Collaboration: Work closely with product managers, developers, and other stakeholders to ensure quality standards are met across all product features.
• Continuous Improvement: Contribute to the improvement of QA processes, methodologies, and tools, staying up to date with the latest trends in quality assurance and testing.
• Documentation: Maintain clear documentation for test plans, test scenarios & cases, results, processes, and guidelines to ensure consistency across testing activities.
• Release Readiness: Work alongside the release management team to ensure that software releases are thoroughly tested and meet quality standards before deployment.
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.