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Senior Packet Core Engineer Jobs in Chicago, IL (NOW HIRING)

Talent Solutions Group Inc

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Senior Software Engineer - Low Latency Trading Systems (Core Java)

Chicago, IL · On-site

$128K - $169K/yr

Senior Software Engineer - Low Latency Trading Systems (Core Java) Chicago, IL | Hybrid (2 Days ... Packet Capture * Hardware Performance Counters Trading Domain Experience Required Candidates should ...

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Canonical

Telco Cloud Field Engineer

Chicago, IL · On-site +1

... NUMA, SR-IOV, DPDK, etc * Familiarity with telco architecture and industry standards * Working ... Mobile Packet Core (4G/5G), Private Network, Radio Access Network (RAN), Voice, IP Backbone, VAS or ...

Reddit

Senior Software Engineer, Core Platform

Chicago, IL · Remote

$126K - $166K/yr

The Core Platform team facilitates millions of API requests running the Core API Platform for ... As a Senior Engineer on this team, you'll be a technical coach and mentor. You'll draw on your ...

Fitch Group

Senior Reliability Engineer

Chicago, IL · On-site

Fitch Group is currently seeking a Senior Service Reliability Engineer to embed with Fitch ... This squad joins Core Engineering and other SRE groups as part of Cloud Infrastructure & Platform ...

Humana

Senior Software Engineer

Chicago, IL · On-site +1

$126K - $166K/yr

The Senior Software Engineer work assignments involve moderately complex to complex issues where ... Collaborate with product management and core engineering teams to provide field feedback and ...

Humana

Senior Software Engineer

Chicago, IL · On-site +1

$126K - $166K/yr

The Senior Software Engineer work assignments involve moderately complex to complex issues where ... Collaborate with product management and core engineering teams to provide field feedback and ...

Humana

Senior Software Engineer

Chicago, IL · On-site +1

$126K - $166K/yr

The Senior Software Engineer work assignments involve moderately complex to complex issues where ... Collaborate with product management and core engineering teams to provide field feedback and ...

Kunai

Senior Software Engineer

Chicago, IL · On-site

$126K - $166K/yr

We are seeking a Senior Software Engineer to join a high-impact digital payments modernization ... REQUIRED SKILLS & EXPERIENCE Core Engineering * 5+ years of professional software engineering ...

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All JobsPacket Core Engineer JobsSenior Packet Core Engineer JobsSenior Packet Core Engineer Jobs in Chicago, IL

Senior Packet Core Engineer information

See Chicago, IL salary details

$61.3K

$130.4K

$189K

How much do senior packet core engineer jobs pay per year?

As of Aug 23, 2026, the average yearly pay for senior packet core engineer in Chicago, IL is $130,372.00, according to ZipRecruiter salary data. Most workers in this role earn between $107,600.00 and $147,800.00 per year, depending on experience, location, and employer.

What is a senior packet core engineer?

A Senior Packet Core Engineer is a highly skilled telecommunications professional responsible for designing, implementing, and maintaining the packet core network infrastructure that supports mobile data services. Their role involves managing core network elements such as SGSN, GGSN, MME, and EPC nodes, ensuring reliable and efficient data transmission across 3G, 4G/LTE, and 5G networks. They also troubleshoot complex issues, optimize network performance, and may lead teams in deploying new technologies or upgrades. Senior Packet Core Engineers frequently collaborate with vendors, network architects, and other engineers to ensure seamless integration and high availability of services.

What are the key skills and qualifications needed to thrive as a senior packet core engineer?

To thrive as a Senior Packet Core Engineer, you need in-depth knowledge of mobile core network architecture (EPC, 4G/5G), strong troubleshooting abilities, and a degree in telecommunications or a related field. Proficiency with network management tools, packet analyzers (like Wireshark), and certifications such as Cisco CCNP or Nokia NRS are typically required. Excellent problem-solving skills, teamwork, and effective communication are critical soft skills for success in this role. These competencies ensure reliable network performance, minimize downtime, and facilitate seamless collaboration across technical teams in high-demand environments.

What are some common challenges faced by senior packet core engineers, and how can they be addressed?

Senior Packet Core Engineers often encounter challenges such as managing complex network integrations, ensuring high availability, and troubleshooting advanced issues in live mobile core networks. Staying updated with evolving technologies like 5G and virtualization can also be demanding. To address these challenges, engineers typically collaborate closely with cross-functional teams, participate in ongoing training, and implement robust monitoring tools to proactively identify and resolve potential issues. Strong problem-solving skills and continuous learning are essential for success in this dynamic role.

What is the difference between Senior Packet Core Engineer vs Network Operations Engineer?

AspectSenior Packet Core EngineerNetwork Operations Engineer
CertificationsCCNA, CCNP, Cisco certifications, LTE/5G certificationsCCNA, Network+, Cisco certifications
Work EnvironmentTelecom carriers, mobile network providers, infrastructure companiesTelecom providers, ISPs, enterprise network teams
ResponsibilitiesDesign, optimize, and troubleshoot packet core networks for LTE/5GMonitor, maintain, and support network infrastructure and services

The Senior Packet Core Engineer focuses on designing and maintaining core network elements for mobile data services, while the Network Operations Engineer handles overall network monitoring and support. Both roles require networking certifications and work within telecom or ISP environments, but their daily tasks differ in scope and specialization.

What are the most commonly searched types of Packet Core Engineer jobs in Chicago, IL?

The most popular types of Packet Core Engineer jobs in Chicago, IL are:

What are popular job titles related to Senior Packet Core Engineer jobs in Chicago, IL?

For Senior Packet Core Engineer jobs in Chicago, IL, the most frequently searched job titles are:

What job categories do people searching Senior Packet Core Engineer jobs in Chicago, IL look for?

The top searched job categories for Senior Packet Core Engineer jobs in Chicago, IL are:

What cities near Chicago, IL are hiring for Senior Packet Core Engineer jobs?

Cities near Chicago, IL with the most Senior Packet Core Engineer job openings:

Senior Packet Core Engineer jobs near you

Senior Software Engineer - Low Latency Trading Systems (Core Java)

Talent Solutions Group Inc

Chicago, IL • On-site

$128K - $169K/yr

Contractor

Medical, Dental, Vision, Life, PTO

Posted 3 days ago

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Job description

Senior Software Engineer – Low Latency Trading Systems (Core Java)

Chicago, IL | Hybrid (2 Days Onsite REQUIRED) | Long-Term Consulting Opportunity


No Third Parties | No C2C | No Visa Sponsorship


Build Technology That Powers High-Performance Trading

Our client is seeking an experienced Senior Software Engineer with deep expertise building ultra-low latency trading platforms.

This is not a traditional enterprise Java position.


We're looking for engineers who have built and supported mission-critical trading systems where microseconds matter. The ideal candidate understands market data, trading workflows, concurrency, networking, and performance optimization and can immediately contribute within a highly technical engineering team.

Candidates without recent low latency trading platform experience will not be considered.


What You'll Do

  • Design and develop ultra-low latency Java applications supporting electronic trading platforms
  • Build and optimize backend trading services and distributed microservices
  • Analyze and optimize application performance for high-throughput, low-latency environments
  • Troubleshoot complex production issues and performance bottlenecks
  • Optimize algorithms, memory utilization, JVM tuning, and threading models
  • Work closely with senior engineers on architecture, code reviews, and system optimization
  • Support production releases, security updates, and platform enhancements
  • Utilize low-level diagnostic tools to analyze system behavior and optimize performance
  • Develop clean, scalable, maintainable Java applications supporting mission-critical trading systems


Required Experience

  • 8+ years of Core Java software engineering
  • Recent experience developing low latency trading platforms
  • Experience supporting electronic trading or capital markets systems
  • Strong understanding of trading workflows and market data processing
  • Experience building backend trading applications—not database-centric applications
  • Strong understanding of distributed microservices architecture
  • Advanced knowledge of multithreading, concurrency, synchronization, shared memory, and asynchronous programming
  • Strong understanding of algorithms and data structures
  • Experience optimizing high-performance Java applications
  • Experience working with TCP/IP and UDP networking
  • Strong Linux experience
  • Self-starter capable of contributing immediately with minimal supervision


Technical Skills

Strong experience with:

  • Core Java
  • Low Latency Systems
  • Multithreading
  • Concurrent Data Structures
  • Shared Memory
  • JNI
  • Java NIO
  • TCP / UDP Networking
  • JVM Performance Tuning
  • Garbage Collection Optimization
  • Linux
  • Linux Kernel Performance
  • Microservices Architecture
  • Performance Profiling
  • Production Support

Preferred experience with:

  • Solarflare Networking
  • EF_VI
  • Onload APIs
  • Thread Pinning
  • NUMA Architecture
  • CPU Cache Optimization
  • Interrupt Handling
  • Packet Capture
  • Hardware Performance Counters


Trading Domain Experience Required

Candidates should have experience working with one or more of the following:

  • Electronic Trading Platforms
  • Matching Engines
  • Order Book Management
  • Market Data Processing
  • Trading Logic
  • Credit Checks
  • Order Routing
  • Market Connectivity
  • Exchange Connectivity
  • Capital Markets Technology


What We're Looking For

We're looking for an engineer who understands the unique challenges of building software where performance, determinism, and reliability are critical.

This is an opportunity to work on highly sophisticated trading technology alongside experienced engineers solving complex performance and scalability challenges.


Important Requirements

  • Hybrid schedule (2 days per week in the office)
  • Chicago or New York
  • Long-term consulting opportunity
  • Must have recent low latency trading platform experience
  • Must have financial services or capital markets experience
  • No Third Parties
  • No Corp-to-Corp (C2C)
  • No Visa Sponsorship


Company Description

We care about the success of each member of out team! We strive for long lasting partnerships where you can grow and expand your career.

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About Talent Solutions Group

Sourced by ZipRecruiter

Talent Solutions Group is committed to providing organizations of all sizes and industries scalable human capital solutions. Since 2000, our team of experienced recruiters have connected employers with top talent, turning business goals into reality. We are built on a vast network of staffing industry mavericks capable of filling positions nationally for all industries. Administrative staff to Executives, our recruiters will take the time to understand your culture and technical requirements to provide the best possible candidate choices.

Industry

Recruiting and staffing services

Company size

11 - 50 Employees

Headquarters location

Chicago, IL, US

Year founded

2000

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