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About Us Mullvad VPN is a Swedish VPN company dedicated to fighting mass surveillance and censorship. We do this primarily through our VPN service and our privacy-focused web browser. Over the years, we have been pioneers when it comes to VPN technology and we intend to remain trailblazers. Everything we do is built with our users’ security and privacy first — with the ambition of making mass surveillance and censorship impractical. The Job We're looking for a Senior Developer to join our Relay Software Team at Mullvad. This team is responsible for all custom software solutions used on our VPN relays. You'll play a key role in advancing server support for technologies such as Quantum-secure tunnels, traffic-analysis protection and protocol obfuscation. Who Are You You're someone who enjoys working in a team, contributes ideas proactively, and has a strong interest in security, networks and low-level software development. You value quality, maintainability, and thoughtful software design. You are curious and eager to learn, and you understand the importance of digital privacy. Responsibilities Work on new and exciting technologies and greenfield projects. Using Go, design and implement robust server software for running on Linux. Author clean solutions that balance performance and resource usage. Perform measurements, testing and troubleshooting. Coordinate with stakeholders and developers in other departments. Qualifications Excellent written and spoken English and Swedish. Highly developed understanding of software design and all aspects of software implementation. Experience with building server software. Excellent understanding of networking fundamentals. Strong knowledge in at least one of C/Go/Rust. Why Mullvad? We value quality over quantity and believe in good solutions rather than quick fixes. Our apps are open source, our teams are curious and collaborative, and we care deeply about removing bloat rather than adding it. We are a bunch of diversified peeps: from vegans to marathon runners, audiophiles to farmers and coffee brewers. So, what unites us? Our commitment to living and breathing our mission, to make mass surveillance and censorship impractical. If you want to build products that make an impact, enjoy generous benefits, and work for a purpose you can stand behind, welcome to Mullvad. Additional Information Location: Gothenburg, Sweden Start: As soon as possible Job Hours: Full-time, hybrid 60% on-site position This is an ongoing recruitment process and we aim to fill the position as soon as possible. Please note that due to the holiday season, there may be some delays in our response times. We appriciate your patience and will get back to you as soon as possible. As part of our hiring process, we conduct a background check to ensure a safe and secure work environment.
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.