Full-Time
Senior Network Engineer
Infrastructure
Posted on 12/13/2025
Mizuho Securities USA
10,001+ employees
Global banking, equities, and fixed-income platform
Compensation Overview
$111k - $185k/yr
New York, NY, USA
Hybrid
Hybrid role; remote opportunities vary by role/department; requires NYC office reporting.
 DevOps & Infrastructure (1) |
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- Bachelor’s degree in Technical or engineering, or computer science or equivalent experience.
- 10+ years of experience supporting computer networks in a mission-critical environment.
- Ability to work in a fast-paced environment supporting real-time market data and trading.
- Certification and/or training with vendor-neutral or vendor-specific focus.
- Basic understanding of operating system administration (Windows and Linux).
- Basic scripting and automation.
- Organized and methodical testing skills.
- Excellent written and oral communication skills.
- Excellent time management and organizational skills.
- Help to drive network improvements and standardization for the network environments in both the Data Centers, Campus and Remote Branch Offices
- Perform tasks including but not limited to planning, staging of hardware and software, implementation of the solution in the lab and production environment, providing post-cutover support, documentation, and end user training.
- Test, debug, conduct performance analysis, and document network infrastructure components
- Capacity management of network infrastructure
- Assist in the implementation of test plans (including functionality, integrity, and stress testing; and definition of test methodologies and strategy) related to network infrastructure
- Ensure that plans for the network integrate effectively with other aspects of the technical infrastructure
- Assist in the development and configuration of the network infrastructure from conceptualization through stabilization
- Assist in the implementation of the network infrastructure by performing product customization, and developing implementation and verification procedures to ensure successful installation of network hardware/software
- Assist in providing production support for incidents / problems escalated from Network Operations team.
- Ensure timely and cost-effective delivery of network infrastructure required for new projects
- Creates and maintains written documentation and diagrams for supported systems
- Participates in a 24/7/365 weekly on-call rotation
Mizuho Securities USA is part of Mizuho Financial Group, a global financial services firm that blends Eastern and Western banking and market practices to serve corporations, private equity firms, and institutional investors. It operates a full-service platform spanning banking, equities, and fixed income, offering strategic and financing solutions along with risk management. The company earns revenue from interest on loans, advisory and financing fees, and trading income across its global equities and fixed income desks. Its approach combines cross-border know-how with local market expertise to tailor solutions for clients. Unlike peers, it emphasizes a long-standing CSR and diversity program, integrating ethical practices and social initiatives into its operations. The goal is to help clients shape their futures and reach their long-term objectives by providing comprehensive financial services and responsible leadership across global markets.
Company Size
10,001+
Company Stage
IPO
Headquarters
Tokyo, Japan
Founded
2000
Simplify's Take
What believers are saying
- Canton Network JGB blockchain trial launched April 20, 2026, enables 24/7 cross-border collateral.
- Viet Phan appointed APAC head of energy and resources, targeting India and Korea growth.
- FSA-backed digital collateral PoC positions firm for tokenized asset leadership.
What critics are saying
- FINRA scrutiny over compliance failures revokes MSUSA licenses within 12 months.
- Goldman Sachs captures 25% more US Treasury auction share from MSUSA in 6 months.
- Canton trial fails under Japan's Book-Entry Transfer Act, losing futures clients in 18 months.
What makes Mizuho Securities USA unique
- Mizuho Securities USA leverages Mizuho Group's largest Japan client base for US market access.
- Institutional brokerage specializes in equity, futures clearing, and fixed income execution.
- Global network connects Asian clients to US Treasuries as Primary Dealer.
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Benefits
Health Insurance
Dental Insurance
Hybrid Work Options
401(k) Retirement Plan
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