Java Engineer Jobs in Illinois

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Mid-Level Java Developer

Kforce Technology Staffing

•

Remote or Atlanta, Georgia, USA

Contract

RESPONSIBILITIES: Kforce has a client that is seeking a remote Mid-Level Java Developer to join their team. Summary: This team is 95% backend heavy with very strong, resilient and high availability microservices. They are currently using Java17, Spring Boot, Micronaut, Cassandra database and hosted in Google Cloud Platform. This person will be tasked with the rebuilding of building new services from scratch and migrating off of PCF (70 microservices to migrate). This team is heavy on PCF and th
Posted 4 days ago | Updated 1 hour ago

100% remote - Fullstack Java Developer-12+ years (Backend Java 70%, React 30%, AWS Code Pipeline, Oracle DB) - Direct Client - Immediate Interviews

Accion Labs

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Remote

Contract, Third Party

One of my direct clients, a Telecommunication equipment manufacturer, is looking for a Fullstack Java Developer. 100% remote Required skills - Backend Java 70%, React 30%, AWS Code Pipeline, Oracle DB Duration - 12+ months, long term, C2C, cannot sponsor Client details will be shared post technical call We are seeking a skilled and experienced Full Stack Developer with strong expertise in Java, React, AWS, Oracle, and CI/CD pipelines. You will play a key role in the design, development, deployme
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Posted 5 days ago | Updated 5 days ago

WebSphere/Portal Java Developer - Remote

Prohires

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Remote

Contract

REQ: WebSphere/Portal Java Developer Remote Descriptions/Requirements: Design, develop, and test new HCL Portal Themes and SkinsReview and understand existing IBM JSF1.x implementation of portletsResearch, design, document and migrate JSF1.x application to MyFaces and integrate with new Themes and SkinsReview and understand existing portlets of Struts implementationResearch, design, document and migrate Struts1/Struts2 applications to latest version of the struts and integrate with new Themes an
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Posted 11 days ago

Mainframe Developer - Core Banking (ACAPS)

NR Consulting LLC

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Remote

Third Party, Contract

Job Title: Mainframe Developer - Core Banking (ACAPS) Work Location: Remote Position Type: Contract Job Description: The resources have to have strong mainframe skills, and not Java/distributed programmers with experience integrating with ACAPS.It would be great if they have skills with all three products listed below, but ACAPS is the most important.One resource with CGI-ACAPS, BureauLink, Strata, Docugen skillset
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Posted 26 days ago

Java Full-stack Developer

Connvertex Technologies Inc.

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Remote or Salt Lake City, Utah, USA

Full-time, Contract

Experience Level: 6-8 Years (10 openings) Job Summary: We are seeking a skilled Java Developer with a strong background in backend development and a solid understanding of frontend technologies. The role will focus approximately 60% on backend services and 40% on frontend UI development. You will work closely with cross-functional teams to build scalable, high-performing applications. Key Responsibilities: Backend (60%): Design, develop, and maintain robust, scalable backend services using Jav
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Posted 52 days ago | Updated 15 hours ago

JAVA Developer

Link Technologies

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Remote

Contract

JOB-7352JAVA DeveloperREMOTEContractLink Technologies (LinkTechConsulting.com), a Las Vegas based IT consulting firm, is currently seeking a JAVA Developer to join our team. Employer asks for I-9 information. QUALIFICATIONS The ideal candidate must have proven experience and proficiency in the following technologies and tools: Strong experience with Java PlatformProficient in Spring BootHands-on experience with MavenProficient in AngularExperience using EclipseProficient in MS SQL Server databas
Posted 2 days ago | Updated 15 hours ago

LEAD Mainframe IT INFRASTRUCTURE ENGINEER

Ocean Blue Solution

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Remote or Pennsylvania, USA

Full-time

Job Description: Our company seeks a highly motivated Lead IT Infrastructure Engineer/Lead Mainframe Platform Engineer to lead the design, implementation, and maintenance of our critical mainframe systems. This role requires deep expertise in z/OS, DB2, IMS, CICS, MQ, and related technologies, and will involve leading complex projects, troubleshooting critical issues, and mentoring junior engineers. The successful candidate will drive platform improvements, ensure high availability and performan
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Posted 60+ days ago | Updated 1 day ago

Full Stack Java Developer

LGL Technologies

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Remote

Contract

Full Stack Java Remote but must be local to or relocate to Aledo TX. Interview- Video Must have AI Background and JavaFX in the resume First 3 days onsite for Orientation Then 1-2 days onsite every 3 months Oil and Gas Background huge Plus Requirements: Java development experience Eclipse JavaFX Spring SQL Claude AI, Claude Code, or other AI tools for assisting with code development and optimization. Preferred Skills HTML, CSS JavaScript Nice to Have Skills TCP & UDP connections to other dev
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Posted 2 days ago | Updated moments ago

Sr. Java J2EE Developer

Ultimo Software Solutions Inc.

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Remote or Amaravathi, Andhra Pradesh, India

Contract

Java Spring Boot & Kafka Engineer Minimum 7+ years of professional software engineering experience. Proven expertise in Java, J2EE, Spring Boot, JPA, Axon, and Kafka. Experience using Maven and Gradle build tools Kafka ecosystem. Kafka Streams library. Kafka Avro schemas Strong experience providing end-to-end support for complex enterprise applications. Excellent problem-solving, analytical, and communication skills. Experience working in Agile environments with a continuous delivery mindset. K
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Posted 25 days ago | Updated 25 days ago

Technical Specialist PowerBuilder/Java Developer

Sunrise Systems, Inc.

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Remote

Contract

Job Title: Technical Specialist PowerBuilder/Java Developer Job ID: 25-09321 Location: Remote Duration: 12 months of contract Job Description: The client dept is seeking a Technical Specialist with 10+ years of experience to support and enhance its HiCAMS application a mission-critical PowerBuilder system with Java, C+, ASP.NET, and web interfaces. Key Responsibilities: Diagnose and resolve Java compatibility issues on Red Hat Linux servers.Modify and support Java interfaces.Enhance PowerBuilde
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Posted 5 days ago | Updated 2 days ago

Lead Java Developer

Infojini

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District of Columbia, USA

Contract, Third Party

Required Qualifications: Bachelor of Science degree in a related field from an accredited institution or equivalent experience. Solid hands-on experience with Kafka. Kafka admin experience is a big plus. 10+ years in Java programming at senior level 3+ years with Kafka and Kafka Admin Hands-on AWS development experience designing and developing with AWS technologies like S3, Lambda, Elastic Beanstalk, SQS, SNS, API Gateway, EC2, Data Pipeline, CloudWatch, CodeCommit, and CloudFormation. Strong h
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Posted 2 days ago | Updated 9 hours ago

Java Full Stack Developer (Spring Boot + React + Python)

Value Spectrum Technologies LLC

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Remote

Contract

Job Overview:UnitedHealth Group is looking for a highly skilled and versatile Full Stack Java Developer to build scalable, secure, and high-performing web applications in the healthcare domain. You will be responsible for designing and developing backend microservices using Spring Boot, dynamic and responsive UIs using React.js, and supporting automation/data transformation workflows with Python. This is a critical position contributing to enterprise applications that support healthcare operatio
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Posted 17 days ago

Senior Java Developer

Kforce Technology Staffing

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Remote or Atlanta, Georgia, USA

Contract

RESPONSIBILITIES: Kforce has a client that is seeking a remote Senior Java Developer to join their team. Summary: We are currently building heavy Java Spring Boot Microservices, Cassandra/Oracle database, hosted in Google Cloud Platform. This person will be tasked with building new services from scratch. This team's codebase is lambdas and streams heavy, so they need to be very confident in all the new java8/11 features. REQUIREMENTS: * Minimum 5 years of professional experience with Java * 4+
Posted 5 days ago | Updated 1 hour ago

Full Stack Java Developer

ConsultNet, LLC

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Remote or Jacksonville, Florida, USA

Full-time

Full Stack Software Engineer (Java / React / Node) Location: Remote Type: Full-time Experience Required: 6+ years (3-5 years US-based) We are seeking a skilled Full Stack Software Engineer to support the development and modernization of high-traffic web applications in a microservices environment. This role offers a true 50/50 mix of front-end and back-end development, working across modern frameworks and enterprise-scale platforms. Key Responsibilities Design, build, and maintain scalable
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Posted 9 days ago | Updated 3 hours ago

Senior Java HSM Developer - Remote

Infinite Computer Solutions (ICS)

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Remote

Contract

Role: Senior Java HSM Developer Degree BS degree Experience: 8+ Yrs. Job Location: Remote (US) a Senior level developer that has down EMV chip card development and has HSM knowledge Must have Skill Set: Bachelor s / Master s degree in Software Engineering or Computer ScienceAbility to pick up new technologiesExperience in payment processing industryPOS Systems, EMV, ISO8583, BNPL Integration, Payment Gateways, HSMs, JPOS, JavaPOS, HSMs, PIN Encryption, EMV Certification, PCI, PCI DSS, EMV Crypto
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Posted 10 days ago

Senior Java Developer (Microservices)- (Hybrid)

Citi

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Remote or Tampa, Florida, USA

Full-time

We are seeking a highly experienced Senior Java Developer (Microservices) to lead the design, development, and implementation of modern, distributed application systems using Java and microservices architecture. This role requires deep expertise in Java development within a microservices context, leveraging Spring Boot and related technologies. You will play a key role in shaping our microservices strategy, collaborating with multiple teams to ensure seamless integration and drive innovation wit
Posted 7 days ago | Updated 3 hours ago

Senior Software Engineer - Back Office

RWE Renewables

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Chicago, Illinois, USA

Full-time

RWE Supply & Trading Americas, LLC, Chicago To start as soon as possible, full time / part time, permanent Functional area: IT / Digital Department Insights We are looking for a Full Stack .NET and Java Developer who is driving with us the Energy Market to the next level! We are looking for someone to support our Back Office with all our existing tools and build new ones that help automate their daily processes. Your future plans Support our internal confirmations and settlement solutions use
Posted 1 day ago | Updated 3 hours ago

Java Lead Developer

Katal Tech

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Chicago, Illinois, USA

Third Party, Contract

Skillset: Java microservices, Kafka, AI/ML, AWS Java Lead: An Lead has an end to end product mindset - design, implementation, testing and deployment Design and developer application using Core Java Design and developer application using J2EE. Experience in J2EE design patterns Create/consume Rest APIs & Microservices Experience with AI/ML Experience with CI/CD, Jenkins Experience with Junit/Mockito Experience with database (SQL/No-SQL_ Experience with Agile, Jira, Git Experience with Kafka/K
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Posted 5 days ago

Backend Java Developer

Citi

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Remote or Irving, Texas, USA

Full-time

About Citi: Citi, the leading global bank, has approximately 200 million customer accounts and does business in more than 160 countries and jurisdictions. Citi provides consumers, corporations, governments, and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking, securities brokerage, transaction services, and wealth management. As a bank with a brain and a soul, Citi creates economic value that is systemic
Posted 1 day ago | Updated 3 hours ago

Principal Java / Spring Boot and Security / Hybrid in Chicago / 10+ YOE

Motion Recruitment Partners, LLC

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Chicago, Illinois, USA

Full-time

We are seeking a senior-level Java Engineer to join a high-performing team building a next-generation platform for industrial automation and manless yard operations. This Chicago-based company is launching a secure, scalable, event-driven microservices architecture to transform logistics, steel mills, and warehouse operations-and they need a strong backend builder to help lead the way. You'll be the most senior engineer on the team (aside from the hiring manager), playing a central role in shapi
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Posted 19 days ago | Updated moments ago