47 network performance engineer jobs at 35 companies in Lindenhurst, NY
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Network Engineer
New York City, New York, United States
$150k-$200k/yr OnsiteFull Time
5+ YOEBachelor's degree or equivalent practical experience and 5+ years in network, infrastructure, or platform engineering. Requires advanced IP networking, datacenter fabrics, cloud networking, automation, security, and performance optimization.
EVPN/VXLAN, BGP, OSPF, QoS, ECMP, Python, APIs, Git, Ansible, Terraform, AWS, Azure, GCP, Direct Connect, ExpressRoute, Transit Gateway, Cloud WAN, VPC, Kubernetes, Container Network Interfaces (CNI), gNMI, OpenConfig, NETCONF/RESTCONF, Linux, TCP/IP, MCP servers, Claude Code, DNS
6d
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Network Development Engineer, ML Network
New York, New York, United States
$156k-$211k/yr OnsiteFull Time
4+ YOERequires 4+ years of routing protocols, Linux/Unix, large-scale network design and operations. Preferred: Python, Bash, Shell or Perl automation, machine learning fundamentals, and network performance optimization.
Linux, Unix, Python, Bash, Shell, Perl, EC2, EBS, S3, Outposts, Local Zones
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Lead Mobile Engineer, Performance
New York City, New York, United States
OnsiteFull Time
Deep mobile performance experience at scale; expertise in rendering, memory, networking, background processing, and startup; Swift and/or Kotlin proficiency; observability and technical leadership experience.
Swift, Kotlin, MacBook Pro
2mo
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Senior Associate - Network Engineer
New York City, New York, United States
$112k-$159k/yr HybridFull Time
3+ YOEManage and support enterprise DNS/DHCP/IPAM (DDI) and load balancers (F5, Citrix, AWS), troubleshoot network incidents, perform upgrades/patches, follow ITIL change processes, and automate tasks using Python/Ansible/PowerShell. 3+ years enterprise network experience.
Infoblox, BlueCat, Microsoft Windows Server, F5 BIG-IP, Citrix ADC, AWS ALB, AWS NLB, AWS, GCP, Microsoft Azure, Wireshark, nslookup, dig, tcpdump, ServiceNow, Remedy, Python, REST APIs, Ansible, Microsoft PowerShell
1mo
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High Performance Computing (HPC) AI Engineer
New York, New York, United States
$101k-$140k/yr OnsiteFull Time
5+ YOEBachelor's degree, 5+ years relevant experience; expertise in parallel storage, SMB/NFS, Linux/UNIX and bash, networking (Ethernet, Infiniband, fiber channel), scripting (Bash, Python, Lua), and HPC/AI optimization.
Linux/UNIX, Bash, Python, Lua, SMB, NFS, Infiniband, fiber channel, UltraViolet
2w
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Communications Field Engineer for System Performance & Infrastructure
New York City or Westchester County or Orange County or Rockland County
$105k-$135k/yr FieldFull Time
3+ YOE3+ years telecom/IT design and operations experience (alternatives with more experience acceptable). Experience with fiber/DWDM/OTN, microwave/RF, IP networking, cybersecurity practices, preventive maintenance, vendor oversight, and incident response. Driver's license required.
DWDM, OTN, MPLS, Microsoft Word, Microsoft Excel, Microsoft Outlook, Microsoft PowerPoint
1mo
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AI Cluster Validation Engineer
Austin or Santa Clara or Seattle or Secaucus
$143k-$245k/yr OnsiteFull Time
Expertise in GPU cluster performance, RDMA/RoCE networking, GPU architectures, scripting (Python, Bash), system-level performance analysis; BS/MS in electrical or computer engineering preferred.
RDMA, RoCE, Python, Bash
1mo
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Staff CX Software Engineer
New York City or London
$220k-$250k/yr OnsiteFull Time
8+ YOE8+ years software engineering experience, distributed systems and Canton Network expertise, consulting/client-facing experience, financial services domain knowledge, performance testing and system design skills.
Canton OS, Canton Network, helm charts, k8s
3mo
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Software Engineer - Options Trading Systems
New York, New York, United States
$175k-$250k/yr OnsiteFull Time
5+ YOE5+ years in production software engineering; strong C++, systems fluency, networking; low-latency, high-performance focus.
C++, Networking, Socket programming, Multithreading
1d
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Software Engineer Intern (Recommendation Infra, Performance Efficiency) - 2027 Summer
San Jose or Los Angeles or Singapore or New York City or London or Dublin or Paris or Berlin or Dubai or Jakarta or Seoul or Tokyo
OnsiteInternship
Bachelor's degree in progress in computer science or related field; systems programming in C++, C, Go, or Java; scalable backend or distributed systems experience; fundamentals in algorithms, operating systems, networking, and debugging.
C++, C, Go, Java, Flink, Spark, Kafka, LLMs
2mo
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Low-Latency Developer
New York, New York, United States
$150k-$300k/yr OnsiteFull Time
5+ YOE5+ years in low-latency development with HFT experience; strong C++; know-how in networking, kernel bypass, and performance optimization.
C++, Linux, Networking, Kernel Bypass, Profiling Tools, Multithreading, IPC, CPU Cache
2w
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Senior Developer
New York City, New York, United States
$150k-$210k/yr OnsiteFull Time
5+ YOEBachelor's degree in computer science or engineering; 5+ years of C/C++ development on Linux; 2+ years of scripting; testing, CI, network protocols, multithreading, performance, and AI coding tools.
C, C++, Linux, Python, Perl, Bash, Coverity, Valgrind, gcov, TCP/IP, Claude Code, Codex, Cursor
1w
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Senior Staff Software Engineer, High Performance Networking, Platforms Infrastructure Engineering
Sunnyvale or New York City
$262k-$364k/yr OnsiteFull Time
8+ YOE5+ MgmtRequires bachelor's degree or equivalent, 8 years of C++ programming, 5 years designing, testing, and launching software, and experience with C, HPC, RDMA, storage, system design, and kernel drivers.
C++, C, High Performance Computing, Remote Direct Memory Access, Storage Systems, Kernel Drivers, Linux, TPUDirect, TPUDirect Storage (TDS), GPUDirect Storage (GDS), Parallel File Systems, Large Language Models (LLM)
3mo
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C++ Software Developer
Amsterdam or Chicago or London or New York City
OnsiteFull Time
Strong C++ ability, fundamentals of software engineering, experience building scalable distributed systems, network programming, and performance optimization; computing degree preferred or extensive professional experience.
C++, Linux
3mo
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Crypto Quantitative Developer
London or New York
$175k-$350k/yr HybridFull Time
Design, develop, and maintain low-latency, high-performance C++ trading systems for crypto markets; strong C++17+; Linux, networking, concurrency; production trading or low-latency software experience; quantitative finance background.
C++, Linux, Networking, Cloud
3mo
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Infrastructure Software Engineer
Zurich or United Kingdom or Germany or San Francisco or New York
HybridFull Time
Experience engineering large-scale infrastructure; strong network architecture and performance tuning; hands-on hardware deployment; proficient with orchestration and automation tools; track record of reliable systems and efficiency gains.
Go, Kubernetes, Terraform, Ansible
1mo
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Senior Infrastructure Project Engineer
Brooklyn, New York, United States
$100k/yr HybridFull Time
Design, plan, and deliver complex IT infrastructure projects; perform environment assessments and onboarding; implement networking, server, cloud, and migration solutions; produce documentation and mentor junior engineers.
Microsoft 365, Azure AD, Active Directory (AD), VPN
2w
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Senior Developer
New York City, New York, United States
$150k-$210k/yr OnsiteFull Time
5+ YOEBachelor's degree in computer science or engineering; 5+ years of C/C++ development on Linux; 2+ years of scripting; networking, multithreading, performance programming, testing, and AI-assisted coding experience.
C, C++, Linux, Python, Perl, Bash, Coverity, Valgrind, gcov, TCP/IP, Claude Code, Codex, Cursor
2mo
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Software Engineer (C++/Rust)
Boston or Salt Lake City or San Francisco or New York City
RemoteFull Time
5+ YOE5+ years software engineering experience; strong C/C++ or Rust skills; systems programming, multithreading, network I/O, and performance optimization experience; familiarity with lldb/gdb and CI/CD; good communication for remote work.
C/C++, Rust, lldb, gdb, CI/CD
7h
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Site Reliability Engineer- Team Lead
New York City or Europe or United States or Asia-Pacific
$170k-$190k/yr HybridFull Time
Bachelor's degree or higher in engineering or related discipline, operational team leadership experience, Linux performance expertise, networking knowledge, financial technology experience, and programming or scripting skills.
Linux, Python, C, C++, Java
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