back-end developer Jobs in chicago, il

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Backend Developer

ACL Digital

Remote or San Jose, California, USA

Full-time

Title: Java Backend Developer Job ID: EBAYJP00021844 Location: Remote (Preferred 1 on EST and 1 on PST) Job Description: Service Engineer Backend Developer Primary responsibilities: Ensuring availability, performance, security, and scalability of production systems. Serve as primary POC for LiveOpsX to address service incidents and troubleshoot/triage as appropriate. Work with the core engineering team to address bugs and deploy services across different environments. Collaborate with infrastruc

Backend Developer - Python, Java, and Node.js- W2 Candidate only

Maven Companies

Remote

Contract

Backend Developer 6 month contract Fully Remote Remote with occasional travel to Rosemont - Need candidates Local to IL Required Skills & Experience 5+ years of back-end development experience, with a strong emphasis on database development.Proficiency in Python, Java, and Node.js, with related frameworks.Extensive experience with AWS services, including EC2, S3, RDS, and Lambda.Strong expertise in MySQL database management, including schema design and query optimization.Hands-on experience wi

Backend Java Developer

4 Consulting Inc

Remote

Full-time

Who we are! At 4Ci our mission is to build long term relationships, based on trust, integrity, and knowledge with all our employees and business affiliates. 4Ci has been in business for 20 years and has employees working on mission critical projects nationwide. We provide computer programming, testing, and system design services to develop and maintain multi-year, multi-million-dollar mission critical applications for the US Government. Examples of such applications are Medicaid MMIS systems, He

Back End Java Developer (Remote)

ConsultNet, LLC

Remote or Fargo, North Dakota, USA

Full-time

Back End Java Developer (Remote) 6-month Contract to hire rate $50.00 to $65.00 per hour. Salary Expectation $100k to $130k Job Description Our client is seeking a Java Developer to help build their custom application. The primary function of this position is to implement innovative solutions, designs and enhancements across web and mobile experiences. This individual will participate in all phases of the SDLC, including functional analysis, and provide both technical and team leadership throug

Backend Java Developer (Apps Dev Tech Lead Analyst - C13 )- IRVING

Citi

Remote or Irving, Texas, USA

Full-time

The Applications Development Technology Lead Analyst is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities. Responsibilities: Partner with multiple management teams to ensure appropriate integration of functions to meet goals as well as identify and define necessary system enhancements

Advanced Backend Python API Developer with Azure and Databricks.

Eliassen Group

Anywhere, US

Contract

Description: *100% Remote role* We're recruiting an Advanced Backend Python Developer to create and implement APIs as well as robust data pipelines, API's, and scalable software solutions with best-practice data architectures. We want you to leverage your leading expertise in API Development and Data Engineering, software development, and cloud technologies to design and optimize the data infrastructure for a highly complex, employee-facing data and analytics web application. Team players only

Senior QA Engineer/Developer with Backend Testing Exp.

Combined Computer Resources

Chicago, Illinois, USA

Contract

Job Description We are seeking a meticulous and proactive Quality Assurance Engineer to join our dynamic team. As a QA Engineer, you will be responsible for ensuring the quality of our software applications through meticulous testing and collaboration with cross-functional teams. You will play a critical role in identifying bugs, usability issues, and other potential problems before our products are deployed to customers. Responsibilities Work with developers to automate the testing of in-sprin

Senior Java Full Stack Developer (80% Backend, AWS Migration Focus) :: Remote :: W2 Position

Aorton Inc

Remote

Contract

Role: Java Full Stack Developer Location: Remote--Boston, MA Key Responsibilities:Lead and contribute to the design, development, and maintenance of robust backend systems using Java, Spring Boot, and SQL.Develop and enhance front-end components using Vue.js, ensuring seamless user experience.Drive and support the migration of legacy systems from on-premises infrastructure to AWS, optimizing for scalability, performance, and resilience.Collaborate with DevOps and Cloud Engineering teams to esta

Java Back end Lead

Keanesoft

Chicago, Illinois, USA

Third Party, Contract

Note: Need 11+ years Need only Back end profiles Local to Dalla TX or Chicago, IL profiles only Job Title: Java Back end Lead Location: Dallas, TX and Chicago, IL (Onsite)Locals) Pay rate: $61 (per Hour) on C2C Coding test and video screening before the technical interview Duration: 6-12+ months Job Title: Java Backend Lead (Need pure backend candidates and should have lead exp) Location: Dallas, TX and Chicago, IL (Onsite)Locals) LinkedIn is must and should be updated Job description: Required

Backend Software Engineer

Bayside Solutions

Remote

Contract

Backend Software Engineer W2 Contract Salary Range: $114,400 - $135,200 per year Location: Austin, TX - Remote Role Requirements and Qualifications: 3-4+ years of backend development experience in Python and/or Java Proven track record of building platforms or adding features to backend services Experience developing large-scale web applications or platforms that serve other teams (e.g., REST services, backend architecture). Bachelor's degree in Computer Science Preferred Qualifications: Ex

Backend Software Engineer, ML

Bayside Solutions

Remote

Contract

Backend Software Engineer, ML W2 Contract Salary Range: $135,200 - $156,000 per year Location: Remote Role - PST Job Summary: As a Backend Software Engineer, you will work with the engineering team, EPM, and customers to support customer migration to next-generation services that generate, manage, and consume datasets, features, and embeddings used for ML training. You will utilize tooling to migrate data and work with customers to change their Python clients to start using the new SDK. Thi

Senior Java Software Engineer- full stack development

Econvergence

Remote

Full-time

About the job The Role We are seeking a Senior Software Engineer to play a pivotal role in our Money product architecture transformation. This includes evolving our banking core, implementing enhanced account structures, and preparing for new financial products like CDs. You will be responsible for maturing central member-facing services, focusing on entitlements, permissions, and data management to support integrated product offerings. You ll work in a highly collaborative environment, where p

Java Engineer / Golang / Remote / Modernization / CICD / Chicago

Motion Recruitment Partners, LLC

Remote or Chicago, Illinois, USA

Full-time

This company is looking for a Senior Backend Developer to join their fully remote engineering team, forced on an enterprise-grade user experience monitoring and diagnostic platform used across virtual and cloud-based environments. In this role, you'll be a key contributor to the ongoing development and performance optimization of a high-throughput analytics product used by IT teams to monitor and troubleshoot digital workspaces at scale. You'll work closely with a tight-knit team of backend engi

Lead Python Backend Engineer-Remote with Occasional Visits to Danbury, CT office-Full time Role

Cyber Sphere LLC

Remote

Full-time

Title Lead Python Backend Engineer Location-Remote with Occasional Visits to Danbury, CT office Duration FTE Job Description We re looking for a Lead Backend Engineer to drive backend development, optimize data infrastructure, and support critical integrations across our ecosystem. You ll play a pivotal role in modernizing our backend architecture to ensure scalability, reliability, and efficiency, while leading transformative initiatives such as: Enhancing CRM and subscription management syste

Backend Python Engineer (REMOTE)(No C2C/H1B)

NetSource, Inc.

Remote

Contract

No C2C/H1B Remote, preference in the LA area to come into the occasional in person meetings. Please note that this is a 4-month contract position. Tech Stack / Tools: Python (NumPy, Pandas, SciPy) SQL (PostgreSQL or MySQL preferred) Github Jupyter notebook Experience with production systems and deployment environments Requirements: 3+ years of experience in backend development using Python in a production environment. Must know be proficient in NumPy, Pandas, SciPy, and Object-Oriented Progra

Sr. Back-End Software Engineer

DRC Systems USA LLC

Remote

Contract

Overview of Project: THE LFRM 2.0 PROJECT AIMS TO MODERNIZE HOW FREIGHT RATES ARE CALCULATED, MANAGED, AND VALIDATED ACROSS OUR ORGANIZATION. THIS INITIATIVE INVOLVES DEVELOPING A SCALABLE PLATFORM ON NEWER INFRASTRUCTURE COMPONENTS AND TECHNOLOGIES, REPLACING CURRENT MANUAL PROCESSES WITH AUTOMATED SOLUTIONS.Required Skills & Experience: 5+ years of experience in back-end development, with a strong focus on database development. Proficiency in Python, Java, Node.js and related frameworks. Exten

Senior Artificial Intelligence Test Engineer

iSpace, Inc

Remote

Contract

Senior Artificial Intelligence Test Engineer Location: Hybrid of 3 days/month onsite during the 2 nd full week of each month in either Denver, CO/Brentwood, TN/Malvern, PA or 100% remote with travel 2-3 times/year (if remote) Duration - 3 6-month Contract to Hire Opportunity Working Hours Mon-Fri, from 8AM 5PM EST This is an exciting opportunity to join a new team that will be supporting the testing efforts for AI products within an industry leading healthcare organization. This team will be s

Senior Software Engineer (Backend) - Materia AI

Thomson Reuters U.S. Inc.

Remote or Eagan, Minnesota, USA

Full-time

Senior Backend Engineer, Materia AI Are you excited about building AI-driven software that redefines how professionals work? Join a dynamic and highly skilled team at Thomson Reuters, where we combine the agility and innovation of a startup with the stability and resources of a global leader. As a Senior Backend Engineer, you will play a pivotal role in developing AI-powered systems that enhance accounting workflows through automation, intelligence, and seamless orchestration. About the Role:

Lead Software Engineer (Backend) - Materia AI

Thomson Reuters U.S. Inc.

Remote or Eagan, Minnesota, USA

Full-time

Lead Backend Engineer, Materia AI Are you excited about building AI-driven software that redefines how professionals work? Join a dynamic and highly skilled team at Thomson Reuters, where we combine the agility and innovation of a startup with the stability and resources of a global leader. As a Lead Backend Engineer, you will play a pivotal role in developing AI-powered systems that enhance accounting workflows through automation, intelligence, and seamless orchestration. About the Role: In t

Senior Mobile Engineer

IDR, Inc.

Remote

Contract

IDR is seeking a Senior Mobile App Engineer to join one of the fastest growing healthtech startups in the country,remotely. This is a unique opportunity to work with a mission-driven team using cutting-edge technology to transform preventive healthcare at scale. If you're passionate about innovation, health optimization, and building high-impact mobile experiences, please apply today! Position Overview: Lead and contribute to the design, development, and deployment of cutting-edge mobile appli