Senior Connectivity Engineer / Networking / VPN / Go / Python / Linux /

Location: Wallingford - Oxfordshire (Hybrid)

Permanent

At Dexory, we are transforming the warehousing and logistics industry through data intelligence.

We're currently recruiting for a Senior Connectivity Engineer to take day-to-day ownership of the connectivity layer that keeps our global robot fleet online. You will build the tooling and automation that makes managing mesh VPN, industrial routers, WiFi and cellular connectivity across the fleet fast, repeatable and observable.

Offices are based in Wallingford, Oxford, with this role offered on a flexible hybrid basis (approximately once every 4 weeks on site).

Experience in robotics, telematics, connected vehicles, industrial IoT, or start-up / scale-up environments is desirable, along with experience operating fleets of devices across multiple geographies and carriers. We're open to candidates from a range of backgrounds - networking, platform, SRE, DevOps, embedded Linux, telematics - what matters is strong networking fundamentals paired with a tooling-first mindset.

Please apply for more information.

Responsibilities / Skills

• Own and evolve Dexory's fleet connectivity stack (mesh VPN, routers, Wi-Fi, cellular) with a tooling-first, automation-led approach so we scale with the fleet, not headcount.
• Build internal tooling and self-serve workflows for router configuration/validation, access management, and fleet health checks; replace manual processes with repeatable, testable systems.
• Operate the mesh VPN layer (WireGuard/Tailscale or equivalent): access-as-code, policy patterns, posture/health automation, and resilience/disaster recovery planning.
• Deliver fleet-wide connectivity observability: monitoring, alerting, reporting, and actionable signals that help teams diagnose end-to-end issues quickly.
• Improve cellular/SIM lifecycle management: provisioning automation, usage/cost visibility, and carrier-level reporting.
• Enable deployments with pre-deployment network validation and simple site survey workflows that field teams can run independently.
• Partner with deployment, service and customer-facing teams to turn field issues into durable tooling and documentation, not recurring manual fixes.
• Strong networking fundamentals (routing, NAT, firewalls, DNS, VPNs, IPv4/IPv6) and experience operating production systems at scale; comfortable debugging multi-layer failures.
• Comfortable working close to the Linux networking stack when needed (interfaces, routing tables, MTU/PMTUD, conntrack, nftables/iptables) and diagnosing kernel-level networking behaviour.
• Proficient in Go and/or Python and experienced with modern observability tooling; bonus points for containers/IoT OS, ACL-as-code patterns, and carrier/router API integrations.

Benefits

Starting from the interview process and continuing into your career with us, you will be working by our four Operating Principles:

• Performance: High standards, outstanding results
• Impact: Big challenges, bigger results
• Commitment: All in, every time
• One team: One mission, shared success

Joining our team and company isn't just about expertise; it's about embracing uncertainty with ambition. We're crafting world-changing solutions, fuelled by a passion to redefine what's possible. We will look for you to help create and shape the future of logistics solutions through our products, our culture and our shared vision.

You will also receive:

• Private healthcare via Bupa with 24/7 medical helpline
• Life insurance
• Income protection
• Pension: 4+% employee with option to opt into salary exchange, 5% employer
• Employee Assistance Programme - mental wellbeing, financial and legal advice/support
• 25 days holiday per year + bank holidays
• Full meals onsite in Wallingford
• Fun team events on and offsite, snacks of all kinds in the office

AAP/EEO Statement Dexory provides equal employment opportunities to all employees and applicants for employment. It prohibits discrimination and harassment of any type without regard to race, colour, religion, age, sex, national origin, disability status, genetics, protected veteran status, or any other characteristic protected by local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

About Dubber

Dubber is the world’s leader in conversation capture and intelligence, revolutionising how businesses capture, analyse, and leverage their conversations. With cutting-edge AI technology, Dubber provides a comprehensive suite of tools and features that goes beyond traditional call recording and transcription solutions.Built to scale to meet any need, Dubber allows organisations to unlock the insights to be found in calls, videos and messages.

Already adopted as core network infrastructure by hundreds of global communications services and applications worldwide, Dubber is specifically designed to help service providers to differentiate, drive new revenues and improve customer retention.

The Team

The capture team at Dubber is a group of talented software engineers who specialise in building, running and operating secure, resilient and scalable platforms to capture audio and video streams from a variety of sources. Capture is at the heart of what Dubber does, and the team is currently embarking on an exciting journey to modernise, simplify and consolidate Dubber’s existing capture capabilities.

The Role

We’re looking for a Senior Engineer with deep telephony experience located in Oxford or London. You’ll be part of a distributed team, modernising and maintaining capture platforms and tools in a multi-cloud environment across many geographies. If you like solving complex problems in simple ways and have a passion for all things audio, then this might be the role for you.

This is a hands-on engineering role with significant ownership: you’ll design, ship and maintain telecommunication services, support production systems, and collaborate across engineering, product, and customer-facing teams to deliver robust solutions.

About You

• You’re enthusiastic, and like solving problems and being hands
• You enjoy communicating and collaborating with
• You’re curious, eager to learn, and have a desire to continuously improve your
• You have previous experience in agile software
• You got deep expertise and experience in software engineering of telephony/voice solutions
• You’ve (ideally) worked in public cloud environments (AWS, Azure, GCP or other).
• You’ve got some knowledge of Docker and Kubernetes (or similar container platforms).
• You’re familiar with highly-automated environments deployed through Infrastructure as Code (using Terraform or similar).
• You know about coding and security best practices and relevant
• You’re comfortable supporting what you

Digging Deeper

• You’re experienced in programming in C/C++ (oriented to VoIP software).
• You have significant experience in SIP protocol including signalling and
• You have experience with SIP signalling analysis for SIP Proxy, SBC, Gateway, Trunk, Registration and bridged media sessions.
• You have experience with open-source software like Asterisk and Freeswitch (configuration, compilation and installation of modules).
• You have experience with OpenSIPs (Load balancing, branches and routes).
• You’re confident with Linux administration (command line) for updating, patching, compiling and creating deb packages.
• You have knowledge of telephony codecs and media containers such as PCMU, PCMA, WAV and
• You have experience Generating SIP scenarios for functional and load testing (SIPp and/or other tools).
• You’re strong in IP networking and have knowledge of routing, NAT, DNS, VPNs and firewalls.
• You have SBC knowledge with AudioCodes, Oracle/Acme Packet or

Why should you join Dubber?

• At Dubber, you’ll join a high-performing global team where curiosity, accountability, and collaboration drive everything we do.
• We offer a competitive salary and bonus structure, along with the opportunity to grow your skills and make a real impact in a rapidly evolving technology environment.
• With team members located around the world, you’ll be part of an inclusive, flexible, and supportive workplace that values diverse perspectives and empowers you to do your best work.
• We foster a collaborative, supportive culture as we work toward ambitious goals.