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Tech Lead – OT Security & Network Access Control (f/m/x) Miejsce pracy: Wrocław Technologies we use Expected LAN WAN VPN Cisco Firewalls Radius Bash Shell About the project We are looking for an experienced Tech Lead – OT Security & Network Access Control to lead and support the design, development, and secure operation of enterprise and industrial (OT) network environments. The role combines strong hands‑on technical expertise in networking and security with leadership responsibility for distributed engineering teams and close collaboration with business stakeholders. Your responsibilities Providing technical leadership in the area of OT security and Network Access Control (NAC) Designing, implementing, and overseeing secure network architectures (LAN, WAN, VPN, SD‑WAN) Defining and enforcing network security standards, including firewalls, RADIUS, and 802.1X Acting as a technical authority for routing, switching, and network access solutions Leading and mentoring a geographically distributed team of network engineers and software developers Collaborating with business stakeholders to translate requirements into technical solutions Working closely with DevOps and Agile teams to align networking and security with modern delivery practices Supporting vendor and technology selection, architecture decisions, and technical documentation Our requirements At least 5 years of experience in a similar position Strong expertise in routing and switching Hands‑on experience with LAN, WAN, VPN, and network security Practical knowledge of Cisco networking technologies Experience with SD‑WAN, firewalls, RADIUS, and IEEE 802.1X Proven experience managing geographically distributed teams of software developers and network engineers Experience working with DevOps and Agile development processes and tools Strong stakeholder management and communication skills Very good command of the English language What we offer Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People Recruitment stages Send your CV Talk to us about your expectations Learn more about our projects and choose the best Start your adventure with Sii! Sii Sp. z o.o. Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment. Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.