{"id":2507822,"url":"https://alion.io/job/presidio-lead-engineer-network-security","title":"Lead Engineer - Network & Security","company":{"id":179581,"name":"Presidio","domain":"presidio.com","url":"https://alion.io/company/presidio","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"UltiPro","truth_index":{"grade":"B","score":81,"open_postings":27,"ghost_share":0,"stale_share":0.963,"repost_share":0,"time_to_fill_p50_days":10,"computed_at":"2026-10-15T05:46:00Z"}},"role":"Networking","role_family":"Networking","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Chennai, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":17000,"max_usd":44000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":175},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"DHCP","optional":false},{"name":"DNS","optional":false}],"status":"live","first_seen_at":"2026-10-14T05:03:27Z","employer_posted_date":"2026-10-14","last_verified_at":"2026-10-15T22:09:15Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Presidio, Where Teamwork and Innovation Shape the Future\n At Presidio, we're at the forefront of a global technology revolution, transforming industries through cutting-edge digital solutions and next-generation AI. We empower businesses - and their internal customers - to achieve more through innovation, automation, and intelligent insights.\nThe Role\nDesign, configure, implement, test, and support enterprise routing, switching, software-defined networking, and network security solutions\nParticipate in customer discovery sessions and technical workshops to document requirements, dependencies, constraints, and success criteria\nDevelop and maintain technical designs, implementation procedures, migration plans, test plans, rollback procedures, and as-built documentation\nBuild and support resilient networks across campus, data center, lab, branch, cloud-connected, and hybrid environments\nConfigure and troubleshoot routing protocols, VLANs, network segmentation, redundancy, high availability, quality of service, and common network services\nImplement and support software-defined networking and network virtualization solutions under established architecture and design standards\nConfigure and support network security controls, including firewalls, secure remote access, segmentation, access policies, and secure connectivity between environments\nPerform advanced troubleshooting, collect and analyze diagnostic information, identify root causes, and coordinate resolution with internal teams and vendors\nPlan and execute approved lifecycle activities, including software upgrades, firmware upgrades, hardware refreshes, configuration updates, and post-change validation\nSupport Presidio lab network and security infrastructure used for engineering, demonstrations, proofs of concept, validation, training, and customer-facing activities\nMaintain lab configurations, diagrams, inventories, access records, standards, and operational documentation to promote repeatability and reduce configuration drift\nServe as a technical point of contact for assigned projects and workstreams, providing clear status updates, technical recommendations, and escalation of risks or blockers\nCoordinate implementation activities with customers, project managers, vendors, facilities teams, remote hands, and other engineering disciplines\nMentor junior and mid-level engineers through technical guidance, peer reviews, troubleshooting support, lab exercises, and knowledge-sharing sessions\nReview configurations and engineering deliverables for technical accuracy, security, consistency, and operational readiness\nContribute to technical standards, runbooks, reference designs, automation practices, and reusable implementation methods\nTechnology/Area of Specialization:\nStrong knowledge of enterprise routing and switching, including dynamic routing protocols, Layer 2 and Layer 3 design, redundancy, segmentation, quality of service, and network services\nWorking knowledge of software-defined networking, policy-based networking, network virtualization, automation, and centralized management platforms\nPractical knowledge of network security technologies, including firewalls, VPNs, secure access, segmentation, access control, policy enforcement, and security monitoring integrations\nFamiliarity with network automation, APIs, configuration management, telemetry, monitoring, and operational analytics\nUnderstanding of infrastructure dependencies such as DNS, DHCP, IP address management, identity services, virtualization, cloud connectivity, and data center facilities\nExperience with Cisco ACI and NDFC is highly desired\nBasic Knowledge, Skills, and Abilities:\nStrong troubleshooting skills with the ability to analyze issues across network, security, virtualization, cloud, and application dependencies\nAbility to develop sound technical solutions within established architecture, security, operational, and project requirements\nStrong written and verbal communication skills with the ability to explain technical topics to customers, project teams, and internal stakeholders\nSolid project execution skills, including task planning, effort estimation, dependency tracking, risk identification, and timely completion of assigned deliverables\nAbility to lead defined technical workstreams while collaborating with senior architects and engineering leadership on complex decisions\nAbility to facilitate technical discussions, implementation planning, peer reviews, and operational handoffs\nCollaborative mindset with a willingness to mentor less-experienced engineers and share practical knowledge\nAttention to detail and consistent documentation practices across designs, configurations, test results, implementation records, and support procedures\nRequired Skills:\nBachelor's degree in computer science, Information Technology, Engineering, or a related field, or equivalent practical experience\nTypically, 5-7 years of progressive experience implementing and supporting enterprise network and security infrastructure\nHands-on experience with enterprise routing and switching, including dynamic routing, segmentation, resiliency, and troubleshooting\nExperience contributing to the design and implementation of enterprise networks in customer-facing, consulting, professional services, managed services, or large enterprise environments\nWorking experience with software-defined networking or network virtualization technologies\nPractical experience configuring or supporting enterprise network security platforms and secure connectivity solutions\nExperience creating technical documentation such as network diagrams, implementation procedures, migration plans, test plans, and as-built records\nExperience coordinating technical activities with customers, project teams, vendors, and internal stakeholders\nDemonstrated ability to provide technical guidance or mentoring to junior engineers\nRelevant professional-level networking or security certifications are preferred\nYour future at Presidio\n Joining Presidio means stepping into a culture of trailblazers - thinkers, builders, and collaborators - who push the boundaries of what's possible. With our expertise AI-driven analytics, cloud solutions, cybersecurity, and next-gen infrastructure, we enable businesses to stay ahead in an ever-evolving digital world.\nHere, your impact is real. Whether you're harnessing the power of Generative AI, architecting resilient digital ecosystems, or driving data-driven transformation, you'll be part of a team that is shaping the future.\nReady to innovate? Let's redefine what's next-together.\nAbout Presidio\n Presidio is committed to hiring the most qualified candidates to join our amazing culture. We aim to attract and hire top talent from all backgrounds, including underrepresented and marginalized communities. We encourage women, people of color, people with disabilities, and veterans to apply for open roles at Presidio. Diversity of skills and thought is a key component to our business success.\nAt Presidio, speed and quality meet technology and innovation. Presidio is a trusted ally for organizations across industries with a decades-long history of building traditional IT foundations and deep expertise in AI and automation, security, networking, digital transformation, and cloud computing. Presidio fills gaps, removes hurdles, optimizes costs, and reduces risk. Presidio's expert technical team develops custom applications, provides managed services, and enables actionable data insights and builds forward-thinking solutions that drive strategic outcomes for clients globally. For more information visit https://presidio.com\nApplications will be accepted on a rolling basis.\nPresidio has a strong commitment to the community we serve and our employees. As an Equal Opportunity Employer, we strive to have a workforce that includes the community we serve.\n Recruitment Agencies, Please Note: Presidio does not accept unsolicited agency resumes/CVs. Do not forward resumes/CVs to our career's email address, Presidio employees or any other means. 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