Backend jobs in Chicago, IL

Backend Senior Software Engineer (Technical Lead) Hybrid Chicago

Chicago, Illinois

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Today

We're looking for a Senior Software Engineer to join a world-class engineering team based in Chicago. You'll play a key role in building, modernizing, and maintaining applications that power both customer-facing and internal systems across multiple locations. This is a hybrid position with two onsite days (Mon/Tue) and a chance to make a real impact on a company that values wellness, technology, and collaboration.. This team has recently completed a large-scale digital transformation and is cont

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Full-time

USD 110,000.00 - 145,000.00 per year

Senior Backend Java Engineer / Hybrid / Chicago

Chicago, Illinois

•

Today

A global financial services company that offers banking, investment management, and asset servicing for corporations, institutions, and wealthy individuals is growing their team and hiring a Senior Java Engineer. They are located in the downtown Chicago West Loop area, and are in office on a hybrid basis, 3 days per week. They are looking for an engineer having experience with Java, Spring Boot, Kubernetes and Azure or AWS. This is a long-term contract role, 1 year with opportunity for extension

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Full-time

65/hr - 75/hr

Sr. Backend Developer - Java

Remote or Hybrid in Chicago, Illinois

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Today

Senior Backend Java developer 3 months Full remote Interview process: 2 rounds Expected start date: December 1, 2025 Requirements: Proficiency in Java 17+ and related frameworks (Maven, Gradle, Spring, Springboot) Experience working with distributed systems (communication patterns, observability, event-based architectures) Experience working with Kafka Experience with relational databases (MySQL, PostgreSQL) Experience writing unit and integration tests using the Junit framework Good understa

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Contract

$50 - $55 hr

Staff Software Engineer - RaptorDB Provisioning (backend)

Chicago, Illinois

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Today

Company Description It all started in sunny San Diego, California in 2004 when a visionary engineer, Fred Luddy, saw the potential to transform how we work. Fast forward to today - ServiceNow stands as a global market leader, bringing innovative AI-enhanced technology to over 8,100 customers, including 85% of the Fortune 500 . Our intelligent cloud-based platform seamlessly connects people, systems, and processes to empower organizations to find smarter, faster, and better ways to work. But thi

Full-time

USD 155,800.00 - 272,700.00 per year

Staff Software Engineer - Backend (Persistence)

Chicago, Illinois

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Today

Full-time

USD 155,800.00 - 272,700.00 per year

Sr. Backend Engineer C++ - (Hybrid)

Remote or Chicago, Illinois

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Today

FreeWheel, a Comcast company, provides comprehensive ad platforms for publishers, advertisers, and media buyers. Powered by premium video content, robust data, and advanced technology, we're making it easier for buyers and sellers to transact across all screens, data types, and sales channels. As a global company, we have offices in nine countries and can insert advertisements around the world. Job Summary FreeWheel is looking for passionate Sr. Backend Engineers to help design, build and suppo

Full-time

USD 126,788.71 - 190,183.07 per year

Senior Backend Engineer (Python or PHP)- Chicago, IL or Denver, CO- ONSITE 4 X Week

Chicago, Illinois

•

Today

FreeWheel, a Comcast company, provides comprehensive ad platforms for publishers, advertisers, and media buyers. Powered by premium video content, robust data, and advanced technology, we're making it easier for buyers and sellers to transact across all screens, data types, and sales channels. As a global company, we have offices in nine countries and can insert advertisements around the world. Job Summary This opportunity is at FreeWheel, a Comcast Company. Within Comcast Advertising, the Bees

Full-time

USD 126,788.71 - 190,183.07 per year

Back-End Python Developer (Django)- Chicago, IL or Denver, CO- ONSITE (4 days a week)

Chicago, Illinois

•

Today

FreeWheel, a Comcast company, provides comprehensive ad platforms for publishers, advertisers, and media buyers. Powered by premium video content, robust data, and advanced technology, we're making it easier for buyers and sellers to transact across all screens, data types, and sales channels. As a global company, we have offices in nine countries and can insert advertisements around the world. Job Summary This opportunity is at FreeWheel, a Comcast Company. Within Comcast Advertising, the Bee

Full-time

USD 107,448.06 - 161,172.09 per year

Lead Java Backend Developer (CDPS)

Chicago, Illinois

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8d ago

Greetings from Unique System!! We have an opening for Lead Java Backend Developer at Chicago, IL. Kindly apply with your updated resume if you are interested. Please find the job details below: Position: Lead Java Backend Developer (CDPS) Location: Chicago, IL Duration: 12 Months contract position Description: We are looking for experienced Technical Leads to guide backend engineering efforts for the Core Data Platform modernization. This role involves architecting scalable solutions, mentoring

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Third Party, Contract

Depends on Experience

Lead Software Engineer, Back End

Chicago, Illinois

•

Today

Lead Software Engineer, Back End Do you love building and pioneering in the technology space? Do you enjoy solving complex business problems in a fast-paced, collaborative, inclusive, and iterative delivery environment? At Capital One, you'll be part of a big group of makers, breakers, doers and disruptors, who love to solve real problems and meet real customer needs. We are seeking Back End Software Engineers who are passionate about marrying data with emerging technologies. As a Capital One

Full-time

USD 175,800.00 - 200,700.00 per year

Java Backend Engineer (Spring Boot)

Chicago, Illinois

•

Yesterday

Required SkillsStrong hands-on experience with Java (8/11/17) and Spring Boot framework.Proficiency in Spring MVC, Spring Data JPA, and RESTful API design.Experience with microservices architecture and cloud deployments (AWS, Azure, Google Cloud Platform).Solid understanding of SQL/NoSQL databases (PostgreSQL, MySQL, MongoDB).Experience with CI/CD pipelines and version control tools (Git, Jenkins, Maven/Gradle).Knowledge of test-driven development (JUnit, Mockito) and API testing tools (Postman,

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Full-time

$80,000 - $140,000

Lead Java Backend Developer

Chicago, Illinois

•

Today

Languages: Core Java (advanced, latest versions, concurrency)Architecture: Microservices, event-driven systems, distributed data platformsDatabases: SQL (Postgres), (AWS DynamoDB or MongoDB)Event Streaming: Kafka, RabbitMQCloud Native: AWS, Docker, Kubernetes, OpenShiftFrameworks: Spring Boot, Reactive ProgrammingDevOps & SRE: CI/CD, observability

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Third Party, Contract

Depends on Experience

Backend Engineer C++ (Chicago or Reston)

Chicago, Illinois

•

Today

FreeWheel, a Comcast company, provides comprehensive ad platforms for publishers, advertisers, and media buyers. Powered by premium video content, robust data, and advanced technology, we're making it easier for buyers and sellers to transact across all screens, data types, and sales channels. As a global company, we have offices in nine countries and can insert advertisements around the world. Job Summary FreeWheel is looking for passionate Software Engineers to help design, build and support

Full-time

USD 107,448.06 - 161,172.09 per year

Sr. Backend Engineer C++ (Chicago or Reston)

Chicago, Illinois

•

Today

FreeWheel, a Comcast company, provides comprehensive ad platforms for publishers, advertisers, and media buyers. Powered by premium video content, robust data, and advanced technology, we're making it easier for buyers and sellers to transact across all screens, data types, and sales channels. As a global company, we have offices in nine countries and can insert advertisements around the world. Job Summary FreeWheel is looking for passionate Software Engineers to help design, build and support

Full-time

USD 126,788.71 - 190,183.07 per year

Lead Backend Engineer C++ (Chicago or Reston)

Chicago, Illinois

•

Today

FreeWheel, a Comcast company, provides comprehensive ad platforms for publishers, advertisers, and media buyers. Powered by premium video content, robust data, and advanced technology, we're making it easier for buyers and sellers to transact across all screens, data types, and sales channels. As a global company, we have offices in nine countries and can insert advertisements around the world. Job Summary FreeWheel is looking for passionate Software Engineers to help design, build and support

Full-time

USD 149,610.68 - 224,416.02 per year

Sr. Full Stack Developer (Payments Domain) || Chicago, IL (Onsite/Hybrid Locals Only) || W2 / C2C

Chicago, Illinois

•

Today

Job Title: Senior Full Stack Developer (Payments Domain) Location: Chicago, IL (Onsite/Hybrid Locals Only) Job Type: W2 / C2C Contract Experience: 10+ Years Note: Only local Chicago profiles with strong payments domain development experience will be considered. Job Summary: We are seeking an experienced Senior Full Stack Developer with strong expertise in the Payments domain to support the modernization of core payment applications. The role focuses on building scalable, reliable, and high-

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Third Party, Contract

Swift Backend Engineer

Remote

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Today

Swift Backend Engineer W2 Contract Location: Remote Role - PST Requirements and Qualifications: Responsible for building libraries and frameworks. Specialize in frameworks for highly available distributed systems. Swift Concurrency Swift on Server Expert in large-scale design, multi-threading, embedded databases. Bayside Solutions, Inc. is not able to sponsor any candidates at this time. Additionally, candidates for this position must qualify as a W2 candidate. Bayside Solutions, Inc. may col

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Contract

Backend Java Engineer

Remote

•

Today

STAND 8 provides end to end IT solutions to enterprise partners across the United States and with offices in Los Angeles, New York, New Jersey, Atlanta, and more including internationally in Mexico and India. Our global solutions team is seeking an experienced Backend Java Engineer to join our media and entertainment client's engineering organization. This role will focus on developing backend services and microservices that enable large-scale content delivery, audience engagement, and analytics

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Contract

$75 - $90 per hour

Backend Software Engineer, Python

Remote

•

Today

Backend Software Engineer, Python W2 Contract Salary Range: $114,400 - $135,200 per year Location: Austin, TX - Remote Role Requirements and Qualifications: 5+ years of backend development experience in Python Must have a proven track record of building platforms or adding features to backend services. Experience with AWS and Kubernetes. Familiarity with Large Language Models (LLMs) - using models, not building them. Some experience and understanding of working with AI "Agent" workflows and

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Contract

$55 - $65 per hour

Sr Java Backend hands on Architect with Node.js

Remote

•

Yesterday

Job Title: Senior Java Backend hands on Architect with Node.js Experience: 10+ years Location: Remote but should be able to work in EST hours Visa: Any Visa but on W2 Special notes (internal): Developer-level candidates have not been able to clear the interviewsInterview will be at least 1 hour minimum. Overview: We are looking for a highly skilled Senior Java Backend hands on Architect with strong expertise in Java (Spring Boot) and Node.js to design, develop, and maintain scalable backend sys

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Contract

Depends on Experience

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Backend jobs in Chicago, IL, USA