CSL Group

About the Company

IoT Connectivity experts supporting mission and business-critical IoT applications. Critical IoT Connectivity can be complex, but we make it easy. Simplicity, service and reliability have been at the heart of everything we do since CSL was founded. The sectors we work in and applications we connect are at the highest end of critical communications. Discover more at www.csl-group.com or call us at +44 (0)1895 474474

Listed Jobs

Company Name

CSL Group

Job Title

Principal Software Engineer

Job Description

**Job Title** Principal Software Engineer **Role Summary** Lead independent contributor driving high‑quality software delivery across a Centre of Excellence. Owns complex problem resolution, technical strategy alignment with product goals, and mentorship of engineering teams. Designs, reviews, and implements scalable, event‑driven solutions on cloud platforms. **Expectations** - Deliver critical software components that meet stringent quality and reliability standards. - Guide teams through challenging technical issues and architectural decisions. - Foster a diverse, inclusive culture and provide constructive coaching to engineers at all levels. - Translate product roadmaps into maintainable, scalable codebases. **Key Responsibilities** - Lead engineering change initiatives and shape technical direction in collaboration with Heads of Engineering, Architects, and Product Managers. - Resolve complex technical challenges and design decisions, articulating risks and rationale. - Conduct code reviews and automated test reviews, ensuring maintainability, reliability, and performance. - Mentor and develop engineers, promoting best practices and a world‑class software culture. - Architect, build, and deploy message‑based, event‑driven ecosystems capable of handling millions of events per second. - Collaborate with cross‑functional teams to translate product requirements into scalable, high‑quality code. - Advocate for continuous improvement and innovation within the engineering track. **Required Skills** - Deep expertise in C#/.NET, PHP, and Python with related frameworks. - Experience designing and scaling event‑driven, message‑based architectures (e.g., Azure Service Bus, Kafka, RabbitMQ). - Strong knowledge of Microsoft Azure services and cloud deployment pipelines. - Proven ability to review code and automated tests, providing constructive feedback. - Excellent problem‑solving, communication, and conflict resolution skills. - Ability to mentor and influence engineers at all experience levels. **Required Education & Certifications** - Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field. - Professional certifications in cloud platforms (e.g., Microsoft Certified: Azure Solutions Architect) and/or relevant programming languages are preferred.

Watford, United kingdom

Hybrid

Senior

02-10-2025