Networking and IoT Engineering Specialist | Networking Solutions

We are looking for a Networking and IoT Engineering Specialist to join our team in Sao Paulo, Brazil. In this role, you will work closely with internal teams and clients to provide technical expertise, resolve complex networking challenges, and support the integration of Teltonika Networks products into customer solutions. Teltonika provides an opportunity for technically driven specialists to deepen their expertise, work with advanced networking technologies, and grow their career in a fast-expanding global IoT organization. Teltonika’s networking solutions business unit develops and manufactures industrial and enterprise connectivity equipment, primarily routers, switches, gateways, and modems. Our networking devices serve clients in the most complex areas of Industry 4.0, Smart City, and Green Energy. In this role, you will: Consult employees and clients on device- and solution-related technical issues. Provide guidance on integrating Teltonika Networks products into customer solutions through written communication and online meetings. Solve technical issues and proactively identify ways to reduce recurring problems. Prepare technical documentation and technical tasks for internal and external use. Conduct training sessions for employees and clients on Teltonika products and solutions. Independently resolve technical issues related to customer configuration, firmware/software, and other sources. Prepare documentation for internal and external platforms, including Teltonika Wiki. Serve as a liaison between customers and Teltonika Networks R&D and Headquarters for complex technical challenges. Work hands-on with Linux-based operating systems, industrial protocols, networking services and protocols, and occasional third-party peripherals. What we expect of you: Technical or engineering education or background. Strong communication skills and the ability to explain technical topics clearly. Working knowledge of software and operating system principles. Knowledge of basic internet technologies (WWW, FTP, etc.). Understanding of telecommunication systems and technologies. Ability to prepare clear and structured technical documentation. Good knowledge of Wi-Fi technologies (802.11 a/b/g/n/ac). Experience configuring VLANs and QoS. Experience configuring VPN solutions such as IPSec, L2TP, OpenVPN, DMVPN, and SSTP, with a solid understanding of their principles and differences. At least 12 months of experience working with routers, including knowledge of 2G, 3G, and 4G networks, network authentication methods, and data session establishment. Experience working with embedded, Linux-based OpenWRT operating systems. Strong troubleshooting and problem-solving skills. Knowledge and ability to use AT commands. Ability to write simple bash/ash scripts. Knowledge of firewall principles and experience configuring firewalls using IPTABLES. Experience working with industrial routers is considered an advantage. What we offer: Salary : We appreciate everyone's efforts and experiences, so we offer an attractive salary matching your skillset and field expertise. Career : Great opportunities to grow in a strong and rapidly expanding company. Catering benefits: Cartão Caju (Vale Refeição of R$35 per working days + Saldo Livre of R$750 monthly + R$09 per working day), coffee and fruits provided in the office; Health and Well-being Benefits: TotalPass, SESC membership, healthcare, dental care, and life insurance. Teambuilding: regular office celebrations and events that help us to get to know each other better. Caring and supportive team: we constantly seek for our employees to have better leadership while regularly sending our managers to external coaching sessions, conducting annual employee engagement surveys, and other management and HRD initiatives to help our employees overcome bottlenecks and challenges. ••• Teltonika is a well-established, internationally operating group of companies with extensive experience in the design and production of high-quality Internet of Things devices. With a strong global presence and proven delivery capabilities, we continuously expand our portfolio, operations, and market reach, providing reliable, scalable, made-in-Europe solutions to customers worldwide. We operate in the fields of telematics, networking, telemedicine, EV charging, and security solutions – and we are continuously expanding our teams to support further growth