Cotiviti · 3 months ago
Senior Systems Engineer- F5
United States
Full-time
Remote
Senior Level, Lead/Staff
$115K/yr - $150K/yr
8+ years expCotiviti is a company focused on delivering secure and optimized application traffic solutions. As a Senior Systems Engineer, you will be responsible for resolving escalated service issues, coaching engineers, and engineering complex projects while maintaining technology in assigned areas.
Responsibilities
Works with project team to plan and engineer the organization's systems infrastructure utilizing extensive experience. Ensure that the various components of the enterprise infrastructure architecture are consistent and coherent, designed at an appropriate level of detail, and that changes are controlled so as to maintain consistency. Serve as a subject matter expert for infrastructure architectural frameworks, methods and tools
Perform a variety of complicated tasks such as implementation or upgrade of designed hardware and software solutions. Works both independently and coordinates the activities of System Administrators, DBA's and development teams
Troubleshoot performance and technical issues with systems infrastructure. Assist development team with troubleshooting application and systems performance issues. Advise on performance and monitoring tools
Design, implement, and maintain F5 BIG-IP systems (LTM, APM) across diverse, enterprise environments
Develop and maintain advanced iRules and traffic policies to support custom application logic, security enforcement, and traffic optimization
Configure and support F5 APM for application access control, including authentication policy design and integration with identity providers
Troubleshoot and resolve complex issues related to SSL/TLS handshakes, load balancing behavior, session persistence, and backend server interactions
Perform packet capture analysis (tcpdump, Wireshark) to diagnose network performance, latency, or connectivity issues at a deep protocol level
Manage all aspects of certificate lifecycle, including issuance, renewal, deployment, and chain validation across F5 systems
Optimize TLS configurations in alignment with current best practices (TLS 1.2/1.3, strong cipher suites, forward secrecy)
Design and maintain DNS architectures, including split-horizon DNS, GSLB, TTL tuning, and resolution flow optimization
Collaborate with cross-functional teams, including system and application owners, to ensure F5 infrastructure aligns with application, security, and business requirements
Provide guidance and mentorship to junior engineers and act as a subject matter expert in F5 technologies
Support automation initiatives using scripting tools such as Python, Ansible, or shell scripting for consistency and efficiency
Maintain accurate documentation of configurations, standards, procedures, and troubleshooting guides
Participate in on-call rotations and provide support during critical incidents or planned maintenance windows
Completes all responsibilities as outlined on annual Performance Plan
Completes all special projects and other duties as assigned
Must be able to perform duties with or without reasonable accommodation
Complete all responsibilities as outlined on annual Performance Plan
Qualification
Required
Bachelor's degree in MIS, computer science, or 4+ years related work experience required
A blended 8+ years architecture, engineering, implementing and administering highly available web server, application server, networking and storage infrastructures required
Minimum 4 years of hands-on experience with F5 BIG-IP LTM in enterprise environments
3+ Years of experience with Certificate management
Proficient in iRules (TCL), traffic manipulation techniques, and F5 CLI/tmsh
Strong understanding of TCP/IP networking, including SNAT, NAT, VLANs, and routing fundamentals
A deep working knowledge VMware, Linux, Windows, .Net, Java, SAN and databases required
Knowledge of one or more RDBMS required
Deep expertise in TLS/SSL, including cipher suite configuration, certificate deployment, and troubleshooting
Proficient in DNS principles and troubleshooting, including experience with TTL management, and DNS flow
Minimum of 3 years mentoring and directing the work of other systems administrators and/or engineers
Experience with packet capture tools (tcpdump, Wireshark) for detailed traffic analysis
Familiarity with F5 APM, including policy creation for Kerberos, SAML, and OAuth2 authentication methods
Working knowledge of PKI infrastructure and tools for certificate management
Strong experience with all major Windows Server platforms (2008–2022) and Linux distributions (RHEL, CentOS) to design F5 configurations that align with application needs
CCNA-level networking knowledge or higher
Experience with monitoring solutions (e.g., Splunk, SolarWinds, Grafana) for F5 performance and availability
Ability to pivot quickly, think creatively, and engineer robust solutions under changing conditions
A proactive Level III Engineer mindset, owning problems end-to-end and delivering enterprise-grade solutions
Outstanding written and verbal communication skills are required
Strong time management skills, including the ability to work independently and balance daily operations and projects
Ability to independently prioritize and re-prioritize tasks required
Ability to perform multiple tasks at one time, required
Ability to work as a team lead, and assist in any IT area is required
Ability to occasionally work early, late or on weekends as work demands is required
Preferred
Experience with multi-datacenter F5 deployments and global traffic management
Familiarity with firewall and security platforms (Palo Alto, Fortinet, F5 AFM)
Experience with certificate lifecycle management platforms (e.g., AppViewX)
Competency in automation scripting (Python, Bash, and nice to have Ansible)
Solid foundation with security principles including HIPAA and SOX compliance preferred
Benefits
Medical, dental, vision, disability, and life insurance coverage
401(k) savings plans
Paid family leave
9 paid holidays per year
17-27 days of Paid Time Off (PTO) per year, depending on specific level and length of service with Cotiviti.
Company
Cotiviti
Cotiviti enables healthcare organizations to deliver better care at lower cost through advanced technology and data analytics that improve the quality and sustainability of healthcare in the United States.
5001-10000 employees
H1B Sponsorship
Cotiviti has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (165)
2024 (118)
2023 (90)
2022 (102)
2021 (72)
2020 (67)
Funding
Current Stage
Late StageLeadership Team
Adam Gilbert
Director, Interoperability Operations and Partnerships
Chris McIntyre
Sr. Program Manager, RQNC Operations
Recent News
2024-04-07
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