Saleem Oyebamiji, Developer in Lagos, Nigeria
Saleem is available for hire
Hire Saleem

Saleem Oyebamiji

Verified Expert  in Engineering

Cybersecurity Engineer and Developer

Location
Lagos, Nigeria
Toptal Member Since
November 24, 2022

Saleem is a cybersecurity professional with 6+ years of experience. He specializes in the design, deployment, and management of network, endpoint, and infrastructure security implementations, including routers and switches, next-gen firewalls, VPNs, NAC solutions, F5, MFA, SIEM/SOAR, and EDR/XDR, across different OEMs. Saleem ensures confidentiality, integrity, and availability of mission-critical infrastructure, adopting known industry frameworks and best practices.

Portfolio

Dell Technologies
Amazon Web Services (AWS), Authentication, Cloud Security...
Spectranet Limited
ASA Firewalls, CISSP, Data Loss Prevention (DLP)...
Jaiz Bank PLC
ASA Firewalls, Data Loss Prevention (DLP), Fortinet Firewall Configuration...

Experience

Availability

Full-time

Preferred Environment

Fortinet Firewall Configuration, Amazon Web Services (AWS), Data Loss Prevention (DLP), Cisco Umbrella, CISSP, F5 Networks, CCNP, SIEM, Secure Access Service Edge (SASE), Cloud Security

The most amazing...

...project I've worked on was the security infrastructure design to enforce zero-trust architecture with micro-segmentation, DLP, and SASE with SIEM/SOAR.

Work Experience

Senior Network and Cybersecurity Engineer

2023 - PRESENT
Dell Technologies
  • Designed and deployed VMware NSX-T for effective private cloud network routing, switching, and micro-segmentation of East-West traffic to drive the zero-trust tenet of the customer.
  • Implemented and managed the VMware NSX Advanced Load Balancer to ensure the availability of the customers' critical services is above the agreed SLA.
  • Championed the adoption of the zero-trust strategy for efficient threat containment by implementing micro-segmentation to enforce the principle of least privilege.
  • Collaborated regularly with the sales team to effectively showcase product features and technical capabilities to sell new solutions or upsell existing ones.
Technologies: Amazon Web Services (AWS), Authentication, Cloud Security, Data Loss Prevention (DLP), Secure Access Service Edge (SASE), Information Security, CCNP, CISSP, Networking, Network Administration, ASA Firewalls, Check Point, CCNA, Cisco Switches, Cisco Umbrella, Cloud, Endpoint Security, F5 Networks, Firewalls, FortiGate, Encryption

Senior Cybersecurity Engineer

2022 - 2023
Spectranet Limited
  • Reduced external malware and intrusion attacks on the enterprises' infrastructure by over 80%.
  • Migrated live traffic from the existing Cisco ASA 5585-X to Firepower 4125 for improved threat filtering and enhanced network segmentation.
  • Managed the endpoint protection, network access control (NAC) solutions, and the secure access service edge in-line data loss prevention (DLP) solution.
  • Redesigned the network architecture to segment the enterprise network from the 4G LTE customer network.
  • Managed and analyzed various network and host-based security appliances (next-generation firewalls, NAC, DLP, PAM, NIDS, HIDS, etc.).
  • Reduced social engineering attacks actively by implementing and managing Trend Micro Email Security solutions and educating users on detecting and responding to social engineering attacks.
  • Implemented effective UTM features (URL filtering, AV, APP control) on FortiGate, Check Point, and Palo Alto firewalls.
Technologies: ASA Firewalls, CISSP, Data Loss Prevention (DLP), Fortinet Firewall Configuration, Information Systems, Intrusion Prevention Systems (IPS), Palo Alto Networks, Web Security, Cybersecurity, Authentication, Security, Cloud, SecOps, Vulnerability Identification, APIs, Risk Management, Cloud Security, Network Security, Check Point, Cisco, Networks, IT Security, TCP/IP, System Administration, Amazon Web Services (AWS), CCNA, Cisco Umbrella, Windows, VMware ESXi, SIEM, Networking, Network Administration

Senior Network and Cybersecurity Engineer

2021 - 2022
Jaiz Bank PLC
  • Championed the adoption and migration of workloads to the cloud (AWS) and a zero-trust strategy to efficiently contain threats by implementing micro-segmentation to enforce least-privilege access.
  • Upgraded and hardened the network security infrastructure to prevent unauthorized access and ensure the confidentiality and integrity of the bank's data using AWS Macie and IAM.
  • Led the deployment of F5 BIG-IP Local Traffic Manager to improve the availability of the bank's critical services to 98%.
  • Conducted a security audit to ascertain the state of the enterprise infrastructure security.
Technologies: ASA Firewalls, Data Loss Prevention (DLP), Fortinet Firewall Configuration, Intrusion Prevention Systems (IPS), Information Systems, Endpoint Security, Zero Trust, Palo Alto Networks, Cybersecurity, Authentication, Security, Cloud, SecOps, Vulnerability Identification, APIs, Risk Management, Cloud Security, Network Security, Check Point, Cisco, Networks, IT Security, TCP/IP, System Administration, CCNA, Cisco Switches, Amazon Web Services (AWS), Cisco Umbrella, Windows, VMware ESXi, SIEM, Networking, Network Administration

Senior Network and Security Engineer

2020 - 2021
Nestoil
  • Migrated all regular generic routing encapsulation tunnels between the corporate head office, branches, and oil rigs to implement internet protocol security (IPsec) and ensure the confidentiality and integrity of the firm's data in transit.
  • Resolved network and information security issues as they arose across the group.
  • Designed a proper layered enterprise security architecture for the group.
Technologies: Data Loss Prevention (DLP), pfSense, McAfee, Intrusion Prevention Systems (IPS), ASA Firewalls, FortiGate, Cybersecurity, Authentication, Security, Cloud, SecOps, Vulnerability Identification, APIs, Risk Management, Network Security, Check Point, Cisco, Networks, IT Security, TCP/IP, System Administration, CCNA, CCNP, Amazon Web Services (AWS), Cloud Security, Cisco Umbrella, Windows, VMware ESXi, SIEM, Networking, Network Administration

Network Security Engineer

2019 - 2020
UBA Group
  • Designed and deployed a scalable remote access VPN solution for the group and its 19 African subsidiaries.
  • Managed and supported the network security architecture concerning F5 load-balancers, Fortinet firewalls, Cisco Nexus switches, and others.
  • Handled user and device authentication using authentication servers, including Cisco Identity Services Engine and FortiAuthenticator.
  • Migrated over 200 IPsec site-to-site VPNs from Cisco ASA to a Fortinet firewall.
Technologies: Data Loss Prevention (DLP), Endpoint Security, FortiGate, ASA Firewalls, Information Systems, Intrusion Prevention Systems (IPS), Zero Trust, Secure Access Service Edge (SASE), VPN, F5 Networks, Cybersecurity, Authentication, Security, Vulnerability Management, SecOps, Vulnerability Identification, APIs, Risk Management, Network Security, Check Point, Cisco, Networks, IT Security, TCP/IP, System Administration, Amazon Web Services (AWS), CCNA, Cloud Security, Windows, VMware ESXi, SIEM, Networking, Network Administration

Network Consulting Engineer

2018 - 2019
Arit of Africa
  • Designed, planned, and successfully deployed network security solutions for clients in Nigeria's financial, oil and gas, and manufacturing industries.
  • Liaised with customers to scope and design solutions to meet their specific IT and security needs.
  • Upgraded and hardened the network security infrastructure to prevent unauthorized access and ensure the confidentiality and integrity of clients' data.
Technologies: ASA Firewalls, Fortinet Firewall Configuration, IP Routing, Cisco Switches, Intrusion Prevention Systems (IPS), VPN, Cybersecurity, Authentication, Security, SecOps, Network Security, Cisco, Networks, IT Security, TCP/IP, System Administration, CCNA, Windows, VMware ESXi, Networking, Network Administration

Network Security Architecture Design

Designed the bank's network security infrastructure by implementing the zero-trust strategy and deploying Fortigate firewalls to the group's head office and its 19 African subsidiaries. This project was targeted at achieving proper segmentation and traffic filtering.

Tools

VPN, Cisco Umbrella, pfSense, FirePower

Industry Expertise

Cybersecurity, Network Security

Other

ASA Firewalls, Data Loss Prevention (DLP), Intrusion Prevention Systems (IPS), CISSP, Zero Trust, FortiGate, Cisco Switches, Firewalls, Authentication, Security, SecOps, Cisco, IT Security, TCP/IP, Networking, Network Administration, Fortinet Firewall Configuration, Palo Alto Networks, IP Networks, Web Security, Information Systems, Endpoint Security, McAfee, Secure Access Service Edge (SASE), F5 Networks, IP Routing, Cloud, Vulnerability Management, Vulnerability Identification, APIs, Risk Management, Cloud Security, Check Point, Networks, System Administration, VMware ESXi, SIEM, Encryption, CCNA, CCNP, Information Security

Platforms

Windows, Amazon Web Services (AWS)

Languages

Python

2008 - 2014

Bachelor's Degree in Computer Science

Ladoke Akintola University of Technology - Ogbomoso, Oyo State, Nigeria

NOVEMBER 2023 - PRESENT

Cisco Certified Network Professional Security

Cisco

NOVEMBER 2022 - PRESENT

Certified Information Systems Security Professional

(ISC)²

AUGUST 2022 - PRESENT

Fortinet NSE 7 Network Security Architect

Fortinet

AUGUST 2020 - PRESENT

Fortinet NSE 4 Network Security Professional

Fortinet

JUNE 2015 - PRESENT

Cisco Certified Network Professional

Cisco

DECEMBER 2014 - PRESENT

Cisco Certified Network Associate

Cisco

Collaboration That Works

How to Work with Toptal

Toptal matches you directly with global industry experts from our network in hours—not weeks or months.

1

Share your needs

Discuss your requirements and refine your scope in a call with a Toptal domain expert.
2

Choose your talent

Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.
3

Start your risk-free talent trial

Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.

Top talent is in high demand.

Start hiring