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  • Full-Stack .NET Engineer — Contract-to-Hire, APIs & Azure

    CBTS is seeking a skilled software engineer with strong experience in .NET/.NET Core, C#, EF Core, REST APIs, and SQL Server to join a contract-to-hire engagement in Schaumburg, IL. The role requires proficiency with Git, CI/CD pipelines, and Azure DevOps/GitHub, and an... 
    Suggested
    Contract work

    CBTS

    Schaumburg, IL
    3 days ago

  • Senior .NET Full-Stack Engineer - Enterprise Apps & APIs

    Encore Talent Solutions is seeking a Full-Stack Application Developer in Schaumburg, Illinois. The role involves developing enterprise applications...  ...teams. Ideal candidates will have strong expertise in RESTful APIs, SQL Server, and modern UI frameworks like Angular. The... 
    Suggested

    Encore Talent Solutions

    Schaumburg, IL
    3 days ago

  • Full-Stack .NET Developer — APIs, Angular & AI‑Assist

    CBTS is seeking a skilled backend engineer to design and build robust .NET Core services and RESTful APIs. You will collaborate with frontend and infra teams to ensure scalable, secure architectures and high performance. Experience with Angular or willingness to ramp quickly... 
    Suggested

    CBTS

    Schaumburg, IL
    2 days ago

  • Full-Stack Software Engineer II - Build Scalable APIs & UI

     ...talented Software Engineer II. You will collaborate with a seasoned product development team to create scalable user experiences and API/service-based solutions. This role involves transforming designs into engaging applications and assuring high-quality software delivery... 
    Suggested

    The Blue Venture Fund

    Oak Brook, IL
    2 days ago

  • Senior API & Microservices Engineer (Java/Spring)

    A healthcare diagnostics company is seeking an experienced API Developer to join their team in Schaumburg, Illinois. This position involves developing high-performance APIs and microservices in an Agile environment. Candidates should have at least 7 years of IT experience... 
    Suggested
    Local area

    Quest Diagnostics

    Schaumburg, IL
    3 days ago

  • Platform Backend Engineer: Scalable APIs & Cloud

     ...seeks a Software Engineer, Platform for their team based in Evanston, IL. This role involves designing, developing, and maintaining backend services, including robust APIs. The ideal candidate should have strong experience with Google Cloud Platform and an understanding of... 
    Suggested

    Speechify

    Evanston, IL
    3 days ago

  • Remote Backend Platform Engineer - TTS & APIs

     ...cloud-based backend to power its text-to-speech platform used across iOS, Android, Mac, Chrome, and Web apps. The role focuses on designing and delivering robust APIs, governing the API landscape, and enabling seamless enterprise integrations. Ideal candidates have strong... 
    Suggested
    Remote job

    Speechify

    Naperville, IL
    3 days ago

  • Full Stack .NET Developer

     ...Job Title: Full Stack .NET Developer Location: Schaumburg, IL (4 days/week expected) Duration: Contract-to-Hire Pay Rate: $60/hr W2 Only...  ...will have strong backend expertise in .NET/.NET Core, C#, REST APIs, Entity Framework Core, and SQL Server , along with frontend experience... 
    Suggested
    Contract work

    CBTS

    Schaumburg, IL
    2 days ago

  • Web Developer

    $110k - $130k

     ...Sponsorship / ONSITE MANDATORY Our client is looking for a C# Web Application Developer who thrives in a fast-moving environment and is excited by...  ...Framework and .NET Core. Proficiency in C#, ASP.NET MVC, and Web API development. Multi-year experience building production... 
    Suggested
    16 hours
    Full time
    Live in
    Worldwide

    Responsive Search Inc

    Schaumburg, IL
    4 days ago

  • Senior Staff Backend Engineer: API-Driven & Scalable

    Ritchie Bros. is seeking a Senior Staff Software Engineer to lead technical execution within Product Engineering, focusing on API-driven services and event-driven architectures. You will collaborate with Product Management and engineering to deliver customer-centric capabilities... 
    Suggested

    Ritchie Bros.

    Westchester, IL
    3 days ago

  • Platform Backend Engineer — TS/Node, Scalable APIs

    $140k - $200k

    Speechify is searching for a backend developer to join its remote team in Naperville, Illinois. The role involves designing and maintaining APIs, optimizing backend performance, and collaborating on B2B solutions. Candidates should have proven experience with TypeScript... 
    Suggested
    Remote work

    Speechify

    Naperville, IL
    3 days ago

  • Full Stack .NET Developer (W2 Contract only)

     ...Contract-to-Hire Pay Rate: $60/hr W2 Only Job Description Required Skills Strong experience with .NET/.NET Core, C#, EF Core, REST APIs, and SQL Server Experience with Git, CI/CD, Azure DevOps/GitHub, and modern software development practices Knowledge of... 
    Suggested
    Contract work

    CBTS

    Schaumburg, IL
    3 days ago

  • Senior Go Backend Engineer (API Development) USA / Remote / W2

     ...Years |Employment Type:Full Time About the Role We're seeking aGo API Engineerto design and build high-performance, scalable APIs. You...  ...at Vettura AI by 2x Sign in to set job alerts for “Back End Developer” roles. Warrenville, IL $87,200.00-$129,200.00 2 days ago Senior... 
    Suggested
    Remote job
    Full time

    Vettura AI

    Naperville, IL
    5 days ago

  • Senior Sterling Integrator Architect - B2B/EDI & API

     ...integrations. The ideal candidate will be responsible for designing, developing, implementing, and supporting B2B/EDI transaction processes and...  ...troubleshoot communication protocols including AS2, SFTP, and APIs. Create and support APIs and integration interfaces for... 
    Suggested

    Veriipro

    Itasca, IL
    3 days ago

  • Principal Engineer- API Platform

     ...various business processes and workflows. As a member of Enterprise API & Integrations teams, there will be opportunities to cross-skill...  ...Enterprise 12/13, API Connect, DataPower and MQ Design and develop IBM Application Connect Enterprise Applications/APIs using IBM MQ... 
    Suggested
    Work experience placement

    Quest Diagnostics Incorporated

    Schaumburg, IL
    3 days ago

  • Full Stack Engineer

    $115k - $130k

     ...Tuesday, Thursday). The Full Stack Engineer works alongside other developers on the Product Strategy & Technology (PST) team to build,...  ...product across the front end (React) and back end (Python, REST APIs) Troubleshoot and resolve bugs and production issues promptly to... 
    Work at office

    DataDelivers, LLC.

    Schaumburg, IL
    1 day ago

  • Software Engineer II - API/Microservices Developer

     ...As a key member of the team, this individual will help design, develop, and maintain complex JEE solutions with a focus on quality, performance...  .... Responsibilities Be a part of a Scrum team working on API and microservices development using open-source technologies like... 

    Quest Diagnostics

    Schaumburg, IL
    3 days ago

  • Back End Developer

     ...the Camunda platform, often involving Java, Spring Boot, and REST APIs. Responsibilities Design complex workflows and implement them on...  ...enterprise systems using REST APIs. Write custom connectors and develop the necessary Java code to implement business logic within the... 
    Contract work

    NR Consulting

    Hanover Park, IL
    2 days ago

  • Full Stack eCommerce Developer

    $125k - $155k

     ...client is looking for a hands‑on full stack developer who’s fluent across front‑end, back‑end,...  ...development, building and integrating scalable web solutions, and mentoring others through...  ...with offshore teams Proficient in API design, system integration, and Agile tools... 
    Full time

    OptiPeople Resources

    Schaumburg, IL
    3 days ago

  • Jr. Web Developer

    $75k - $80k

     ...The Junior Web Developer supports the design, development, maintenance, and enhancement of web-based applications using Adobe ColdFusion...  ...secure coding practices Integration with enterprise systems (e.g., APIs, authentication, SSO) Experience maintaining legacy apps while... 
    Work at office
    Relocation

    AAR

    Wood Dale, IL
    1 day ago

  • Remote Senior Java Developer - Enterprise API & DevOps

    Ensono in Downers Grove is seeking a Senior Java Developer with over 15 years of experience. The role involves designing, developing, and...  ...and manage middleware configurations and develop RESTful APIs. Ensono offers a flexible work environment and a variety of benefits... 
    Remote job
    Flexible hours

    Ensono

    Downers Grove, IL
    3 days ago

  • Full Stack .NET Developer

    $72.7k - $145.4k

     ...are looking for an ambitious, highly versatile Full Stack .NET Developer to join our close-knit internal business tools team. Because we...  ...tools, ensure strict security standards, and even help maintain our web and SQL servers. Your primary focus will be developing brand-new... 
    Contract work
    Worldwide
    Relocation
    Flexible hours

    Motorola Solutions

    Schaumburg, IL
    2 days ago

  • .NET Full Stack Developer

     ...Software Developer Responsibilities: Develop high-quality software solutions based on business requirements Collaborate with cross-functional teams to define, design, and ship new features Maintain and enhance existing software applications Troubleshoot... 

    RIT Solutions

    Schaumburg, IL
    2 days ago

  • Remote Django Web Developer — Python & APIs

    $70k - $90k

    Django REST framework is seeking a Web Developer in Wheaton, IL to create web products and experiences that present content to the marketplace. The role focuses on web application development utilizing Python, Django, HTML, JavaScript, SQL, and Git. Remote candidates are... 
    Remote job
    Local area

    Django REST framework

    Wheaton, IL
    5 days ago

  • .Net FullStack Developer

     ...provide the job title for accurate formatting. The job description includes the following skills and technologies: Net Core, API, Microservices Docker containers WebServices WebAPI RESTful APIs SOAP Angular or React or ViewJS Javascript &... 

    Omni Inclusive

    Rolling Meadows, IL
    5 days ago

  • Full Stack Developer - .Net/.Net Core(onsite, no third party, only W2)

     ...Core and C# Hands‑on experience with Entity Framework Core (EF Core) and ORM best practices Proven experience designing and developing RESTful APIs and microservices architectures Solid understanding of object‑oriented programming (OOP), design patterns, and clean... 

    CBTS

    Schaumburg, IL
    2 days ago

  • SOA & API Test Engineer - Java, Automation, CI/CD

     ...Full-Time position requiring strong experience in SOA testing and web service automation. Ideal candidates should possess at least 4...  ...experience and JAVA development skills. The role demands expertise in API Test Automation and a solid understanding of the Insurance domain... 
    Full time

    SonSoft

    Northbrook, IL
    3 days ago

  • Web Developer II

     ...flexibility by offering contingent labor as a variable cost. Job Description 6 MONTHS + Responsibilities Extending order processing ColdFusion web application functionality for provisioning MSI's SaaS products. Webservices are used for communication between the applications.... 
    Work experience placement
    Immediate start

    Artech Information System LLC

    Schaumburg, IL
    5 days ago

  • Web Developer

    $70k - $90k

     ...The *Web Developer (Django)* is responsible for creating products and experiences that present Crossway content to the marketplace with truth...  ...and future web products and experiences* Related services and API development* Web infrastructure maintenance* Other duties as assigned... 
    Remote work

    Django REST framework

    Wheaton, IL
    3 days ago

  • Senior Salesforce Developer: Apex, API & Data Migration

    A U.S.-based software company is hiring a Salesforce Developer to build low-level design documents and custom code for Salesforce applications...  ...holders. Ideal applicants will be familiar with Salesforce.com APIs and ETL tools. This is a permanent position with no sponsorship... 
    Permanent employment
    Full time

    SonSoft

    Round Lake, IL
    3 days ago