Network Engineer

Egreenservices; Newark (NJ); On-site; USD 99,000 - 147,000; Full time

Job summary

Citigroup in Newark, NJ is seeking a mid-level Network Engineer with a hands-on focus on VPN configuration, TCP/IP, and security. You will mentor teammates, collaborate with QA, and help shape how the technology team operates while delivering secure, scalable network solutions.

The position offers structured mentorship and a salary range of $99,000 to $147,000 per year, with opportunities to grow into leadership as you deepen expertise in network security and performance monitoring.

Qualifications

• Mentor or support mid-level teammates.
• Team player who lifts up colleagues and shares credit.
• Real proficiency with Penetration Testing, plus willingness to learn Wireshark fast.
• At least 3 years building expertise within the technology space.
• Meticulous attention to detail across every deliverable.

Responsibilities

• Profile Wireshark memory use and chase down the leaks crashing Newark nodes
• Ship CompTIA Security+ fixes to Citigroup customers in Newark, NJ the same day they report them
• Slice the solutions-focused technology monolith into Wireshark services Newark, NJ can deploy alone
• Translate VPN Configuration metrics into the one chart Citigroup leadership checks each morning
• Push Penetration Testing changes safely behind flags so Newark, NJ rollbacks take seconds
• Champion engineering excellence and continuous learning within Citigroup
• Partner with QA to define test coverage and catch regressions early

Skills

Mentoring

Teamwork

Penetration Testing

TCP/IP

Tools

Wireshark

Job description

Our Network Engineer role rewards the human-first habit of writing the test before you trust the feature, especially around VPN Configuration. Frame it as Citigroup trusting your 5 years with $99, 000 - $147,000, a technology mandate, and the room to grow into leadership.

Key Responsibilities

• Profile Wireshark memory use and chase down the leaks crashing Newark nodes
• Ship CompTIA Security+ fixes to Citigroup customers in Newark, NJ the same day they report them
• Slice the solutions-focused technology monolith into Wireshark services Newark, NJ can deploy alone
• Translate VPN Configuration metrics into the one chart Citigroup leadership checks each morning
• Push Penetration Testing changes safely behind flags so Newark, NJ rollbacks take seconds
• Champion engineering excellence and continuous learning within Citigroup
• Partner with QA to define test coverage and catch regressions early

What You'll Bring

• Demonstrated capacity to mentor or support mid-level teammates
• The patience to mentor without taking over the keyboard
• A team player who lifts up colleagues and shares credit
• Real proficiency with Penetration Testing, plus willingness to learn Wireshark fast
• At least 3 years building expertise within the technology space
• Meticulous attention to detail across every deliverable

At Citigroup, a fast-moving Newark-based studio, the whole mission boils down to making CompTIA Security+ feel effortless for everyone downstream. As a mid-level Network Engineer, you'll have a real voice in shaping how the technology team operates.

This mid-level role pays $99,000 - $147,000 and comes with structured mentorship designed to sharpen your TCP/IP and SaaS Administration over time.

This Network Engineer posting is fresh, active, and open for business right now.