performance Jobs in chicago, il

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Datacenter Fiber Specialist - Remote

VIVA USA INC

•

Remote

Contract

Title: Datacenter Fiber Specialist - Remote Mandatory skills: Datacenter Fiber, Fiber Management, Fiber Maintenance, Fiber Deployment, Fiber Testing, Microsoft fiber optic network, Microsoft engineering, Microsoft remote engineering, Microsoft Cloud, datacenter operations, network expansion, disaster recovery, data center infrastructure, servers, networking, fiber delivery, fiber operations, fiber network operations, fiber infrastructure, fiber maintenance, fiber management, fiber cuts, degrada
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Posted 3 days ago

Datacenter Fiber Specialist - Remote

VIVA USA INC

•

Remote

Contract

Title: Datacenter Fiber Specialist - Remote Mandatory skills: Datacenter Fiber, Fiber Management, Fiber Maintenance, Fiber Deployment, Fiber Testing, Microsoft fiber optic network, Microsoft engineering, Microsoft remote engineering, Microsoft Cloud, datacenter operations, network expansion, disaster recovery, data center infrastructure, servers, networking, fiber delivery, fiber operations, fiber network operations, fiber infrastructure, fiber maintenance, fiber management, fiber cuts, degrada
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Posted 3 days ago | Updated 3 days ago

Site Reliability Engineer

Ztek Consulting

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Chicago, Illinois, USA

Third Party, Contract

Job title: Site Reliability Engineer Location:- Chicago-IL Onsite Job Description: Experience with SRE design to address reliability and resiliency with availability of 5-9sExperience in working in a cloud environment (OCP and AWS EMR).Experience with application monitoring tools, observability, and performance assessments.Strong experience with DevOps (CI CD pipelines with Jenkins or similar Git GitHub)High level of familiarity with the Linux command line and scriptingProven skills in high av
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Posted 4 days ago | Updated 18 hours ago

Crypto Trading Systems Engineer - Asia Timezone

Westbury Partners

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Remote or Chicago, Illinois, USA

Full-time

What You'll Do: Design and implement cutting-edge trading and market-making strategies Work closely with a trader based in Asia to identify and capitalize on market opportunities Build and maintain C++ and Python systems for high-frequency trading across global crypto exchanges Optimize performance, reduce latency, and support real-time 24/7 trading operations Take full ownership of systems-from design and coding to monitoring and troubleshooting Collaborate with developers, traders, and quants
Posted 29 days ago | Updated 19 days ago

UI/ Frontend Developer

Acadia Technologies, Inc.

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Chicago, Illinois, USA

Full-time

Technical Skills: JavaScript Proficiency:A strong foundation in JavaScript, including ES6+ syntax, is fundamental as React Native is built upon it.React Fundamentals:In-depth knowledge of React concepts such as components, props, state, lifecycle methods, and hooks is crucial for building reusable and maintainable UI elements.React Native Specifics:Understanding React Native components, APIs, styling with StyleSheet, and layout with Flexbox for creating responsive and platform-agnostic UIs.State
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Posted 22 hours ago

UX and UI Developer

Rose International

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Chicago, Illinois, USA

Full-time

Date Posted: 07/22/2025 Hiring Organization: Rose International Position Number: 485900 Industry: Financial Services Job Title: UX and UI Developer Job Location: Chicago, IL, USA, 60604 Work Model: Hybrid Work Model Details: Onsite 3 days per week Shift: 8 am to 5pm CST Employment Type: Temporary FT/PT: Full-Time Estimated Duration (In months): 10 Min Hourly Rate($): 70.00 Max Hourly Rate($): 75.00 Must Have Skills/Attributes: CSS, Front End, HTML, JavaScript, React Experience Desired:
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Posted 5 days ago | Updated moments ago

IBMi Developer - AS400 Developer

Digitive LLC

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Chicago, Illinois, USA

Contract, Third Party

IBMi Developer - AS400 Developer Chicago, IL 12+ Months Contract Position Type-1099/W2 Exp Level- 8+Years Req Skills- Database Administrator, IBM i (AS/400), DB2 for I, IBM i operating system (OS/400), database management, IBM Navigator for i, STRSQL, performance tuning, backup, recovery, security Key Responsibilities: Database Management: Install, configure, and maintain IBM i-based databases (DB2 for i, etc.) and ensure they are optimized for performance.Backup and Recovery: Implement and main
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Posted 7 days ago

RightAngle Technical Architect in Chicago, IL (Hybrid role)

FSTONE Technologies

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Chicago, Illinois, USA

Third Party, Contract

Greetings! Role: RightAngle Technical Architect Location: Chicago, IL (Hybrid role) Duration: 12+ months Required Skills & Qualifications: Experience: Minimum 8 years in IT, with at least 5 years working in the ETRM/CTRM domain.RA Expertise: Minimum 3 full-cycle RightAngle implementations, with at least 1 2 as an Architect.Technical Skills:Strong knowledge of RA modules (Trading, Risk, Logistics, Accounting).Deep understanding of RA technical architecture and extension capabilities.Proficient in
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Posted 60+ days ago | Updated 18 hours ago

Mainframe Developer (TSO / z/OS / STAR / SYS2 LPAR)

Ztek Consulting

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Chicago, Illinois, USA

Full-time

Job Description:We are seeking a highly experienced Mainframe Developer with strong proficiency in TSO and z/OS environments. The ideal candidate will have hands-on experience working with STAR and SYS2 LPARs, as well as deep knowledge of mainframe development and system operations. Key Responsibilities:Develop, test, and maintain mainframe applications in a TSO and z/OS environment. Work with LPARs, particularly STAR and SYS2, to manage logical partitions and support system operations. Analyze
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Posted 6 days ago | Updated 5 days ago

HPC Infrastructure Engineer

Pegasus Knowledge Solutions

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Skokie, Illinois, USA

Contract

The Senior HPC Infrastructure Engineer will support the design, implementation, optimization, and ongoing management of our High-Performance Computing (HPC) infrastructure. The role blends technical proficiency in system architecture design, Linux - based HPC clusters, high-speed interconnects, and HPC storage solutions, alongside day-to-day system administration. You will collaborate with cross-functional teams, including HPC Operations Engineers, researchers, and IT staff to ensure reliable, s
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Posted 21 days ago | Updated 6 days ago

Senior Program Manager Financial Risk and Data Modernization

Rose International

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Chicago, Illinois, USA

Full-time

Date Posted: 07/25/2025 Hiring Organization: Rose International Position Number: 486081 Industry: Financial Services Job Title: Senior Program Manager Financial Risk and Data Modernization Job Location: Chicago, IL, USA, 60604 Work Model: Hybrid Work Model Details: Three Times a Week is mandotary Shift: 8 am to 5pm CST Employment Type: Temporary FT/PT: Full-Time Estimated Duration (In months): 10 Min Hourly Rate($): 70.00 Max Hourly Rate($): 80.00 Must Have Skills/Attributes: Project Ma
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Posted 3 days ago | Updated moments ago

HPC Engineer

Selby Jennings

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Chicago, Illinois, USA

Full-time

Location: Chicago, IL, hybrid in office Salary: $175,000-$225,000 base salary plus annual discretionary bonus An elite trading firm in Chicago is seeking a High Performance Computing Engineer to join their Chicago team. You'll be directly responsible for enhancing their research infrastructure and accelerating all teams within the firm. What you'll do: - Support and scale the firms high-performance computing and storage systems both on premise (Linux) and in the cloud (AWS. Google Cloud Platfor
Posted 21 days ago

Trading Analytics Engineer - Prop Trading

Selby Jennings

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Chicago, Illinois, USA

Full-time

We are seeking a Trading Analytics Engineer to join a well-established Data Analytics team that supports analysis workflows across multiple trading desks. This role involves building essential tools and systems for data analysis and collaborating closely with traders to tailor existing tools to a variety of use cases. The ideal candidate is adept at translating high-level ideas into detailed technical solutions and thrives in a fast-paced, dynamic environment. Key Responsibilities: Partner with
Posted 12 days ago

Senior Engineer, Advanced Computing - HPC/Kubernetes

Balyasny Asset Management

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Chicago, Illinois, USA

Full-time

BAM is seeking an innovative and driven self-starter for a Senior Engineer position in the Advanced Computing Engineering team. Candidates must embody a mindset of continuous learning and innovation to deliver solutions that help drive the success of the business. As a Senior Engineer, you will: Contribute and build our HPC environment used for research. Develop and maintain our global storage offering for the firm across multiple datacenters and environments. Contribute to our Linux servers.
Posted 58 days ago | Updated 3 hours ago

Frontend Developer

To The New

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Chicago, Illinois, USA

Contract

Job Description:We are seeking a skilled Frontend Developer with strong experience in React.js and a background in trading platforms. The ideal candidate will work closely with backend developers, traders, and UX teams to build high-performance, real-time web applications. Must-Have Skills: 4+ years of frontend development experience Strong proficiency in React.js and JavaScript/TypeScript Prior experience working on trading platforms Solid understanding of UI/UX principles and performance optim
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Posted moments ago

Full-Stack Mobile Engineer

Motion Recruitment Partners, LLC

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Chicago, Illinois, USA

Full-time

Full-Stack Mobile Engineer A fast-growing technology company in the sports industry is looking to expand their team by hiring a Full-Stack Mobile Engineer. You will be working on the development of new mobile features that allow users to help onboard, register, and provide financial payments for their sports programs through an innovative digital platform. This includes collaborating closely with design, product, and engineering teams to create new modules like player profiles and calendar sche
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Posted 60+ days ago | Updated moments ago

Job Opportunity for Data Center Operation Engineer- Skokie, IL- Onsite- Long term Contract

Pegasus Knowledge Solutions

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Skokie, Illinois, USA

Third Party, Contract

Job Title: Senior IT Systems Administrator / Site Operations Engineer (HPC Support) Employment Type:Contract or Possible Contract to hire. Location:Onsite Skokie, IL About the Role:Our client is seeking aSenior IT Systems Administrator / Site Operations Engineerto serve as the primary technical presence supporting high-performance computing (HPC) infrastructure at Skokie location in IL facility. This individual will play a hands-on role in the setup, maintenance, and ongoing support of a new HP
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Posted 60+ days ago | Updated 23 hours ago

Head of Software Engineering /Onsite/Chicago/Western Suburbs

Motion Recruitment Partners, LLC

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Chicago, Illinois, USA

Full-time

This full-time, in-office Head of Engineering opportunity is based in the Western Suburbs of Chicago. The company is a fast-growing SaaS platform dedicated to transforming the restoration industry. The organization is entering a high-growth phase with plans to double the engineering team over the next year. The technology stack spans mobile (Flutter), web, and backend systems (.NET), with a focus on scalability and modernization. This role offers a chance to drive engineering strategy at scale w
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Posted 33 days ago | Updated moments ago

IBM iSeries (formerly AS/400) LPAR Admin

Tanisha Systems, Inc.

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Chicago, Illinois, USA

Full-time

Job Title: Client iSeries (formerly AS/400) LPAR Admin Location: Chicago, IL / *napolis, IN Onsite from Day 1 Job Type: Full-Time Years of Experience: 10 - 15 years Job Summary: The Client iSeries Midrange Server LPAR Administrator/Specialist is responsible for designing, implementing, and managing logical partitions (LPARs) on Client iSeries servers. This role requires strong technical expertise in Client iSeries systems, virtualization technologies, and system administration. Key Responsibilit
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Posted 27 days ago | Updated 10 hours ago

Head of Engineering (B2B SaaS)

Motion Recruitment Partners, LLC

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Chicago, Illinois, USA

Full-time

Grow your career as a Head of Engineering with a fast-growing, venture-backed SaaS company in Oak Brook, IL. Full-time, in-office role (4 days/week) This senior-level position is responsible for leading and scaling the engineering organization during a high-growth period, working closely with the founding team to modernize architecture, optimize performance, and expand the team. You'll shape the future of a product that empowers restoration contractors and directly impacts communities. Expect hi
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Posted 26 days ago | Updated moments ago