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  • $65.45k - $117k

    About the role We’re looking for a seasoned Senior .NET Developer to join our team and drive the development of scalable batch processes and API integrations. This role is ideal for someone with deep expertise in .NET Core, C#, and database technologies, who thrives in... 
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    Temporary work
    Remote work

    Cognizant

    Springfield, IL
    7 days ago
  • Overview Java API Developer Location: Anywhere Type: Contract Category: Engineer Industry: Insurance Workplace Type: Remote Reference ID: JN -092025-103586 Date Posted: 09/07/2025 Shortcut: Description: Remote Join a dynamic team with a major healthcare organization... 
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    Hourly pay
    Contract work
    Local area
    Remote work

    Eliassen Group

    Springfield, IL
    2 days ago
  •  ...Senior Web Developer - Microsoft C#, ASP.Net, .Net Core, SQL We seek a highly skilled Senior Web Developer to lead the building...  ...C#, ASP.Net, .Net Core, SQL, OAuth2, Azure DevOps, and Restful API skills as well as a s olid technical background in web development... 
    Suggested
    Full time

    Confidential

    Springfield, IL
    2 hours ago
  • $186.01k - $218.9k

     ...crypto technologies, scalable infrastructure and UI surfaces across web, mobile and browser extensions in a fast-paced industry with...  ...database management, data pipelining, scaling and data distribution to APIs and frontend solutions Design and implement core trading platform... 
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    Full time
    Local area

    Coinbase

    Springfield, IL
    4 days ago
  • $147k - $174k

     ...Role and responsibilities Stablecoin Ecosystem team is looking for BE developers who will help in delivering a suite of international stablecoins. The role will be responsible for evaluating the APIs of external partners, integrating them with internal systems to enable... 
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    Full time
    Local area

    Coinbase

    Springfield, IL
    2 days ago
  • $186.01k - $218.9k

     ...Prime Web3 Wallet, Commerce and Exchange. Whether the customer needs are trading, staking, governance, custody, web3 operations, or API integrations, Coinbase Institutional has them covered. The Institutional Prime Trading, Derivatives team has built the end-to-end platform... 
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    Full time
    Local area

    Coinbase

    Springfield, IL
    4 days ago
  • $31 - $46 per hour

     ...exceptions will be made. The Main Responsibilities The Back-end Developer Intern will be responsible for: Collaborate with cross-functional teams to design and develop server-side features and APIs. Build and maintain backend services using Python and Django... 
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    Lensa

    Springfield, IL
    18 hours ago
  • $79.2k - $178.1k

     ...to join our Oracle Health team. In this role, you will design, develop, and optimize user interfaces for healthcare applications used by...  ...design, and accessibility standards. Experience with RESTful APIs, state management, and modern front-end build pipelines.... 
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    Temporary work
    Flexible hours

    Oracle

    Springfield, IL
    18 hours ago
  • $84.2k - $124.1k

     ...We are seeking an experienced and forward-thinking Back-end Developer and DevOps Software Engineer III to join our Software Development...  ...to the continued evolution of our enterprise services, APIs, automations, and DevOps capabilities. Your responsibilities will... 
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    Full time

    Horace Mann

    Springfield, IL
    2 hours ago
  • $218.03k - $256.5k

     ...is expected and fully supported. Responsibilities Architect and develop payments platform for processing billions of dollars of payments...  ...Experience of building simple, scalable and fault tolerant APIs Nice to haves You’ve worked with Golang, gRPC, Docker, Kafka, AWS... 
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    Full time
    Local area

    Coinbase

    Springfield, IL
    2 days ago
  •  ...drive meaningful change, spark innovation, and achieve extraordinary milestones. Kentro is hiring for a cleared mid-level Software/Web Developer to support the National Geospatial-Intelligence Agency. Responsibilities Support intelligence dissemination on all networks.... 
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    Kentro Estelle iLab

    Springfield, IL
    4 days ago
  • $120k - $150k

     ...definition of requirements. Typical duties include analysis, planning, developing requirements documents, building functional models, developing...  ...tracking software (Jira). - 3 years of experience testing web-based applications. - 3 years of experience participating in... 
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    Permanent employment
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    Maximus

    Springfield, IL
    18 hours ago
  • $180.63k - $212k

     ...held multiple times annually to foster collaboration, connection, and alignment. Attendance is expected and fully supported. The Developer Experience (DevX) org empowers our engineers to develop, build, test, and release high quality code quickly and reliably. We do this... 
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    Full time
    Local area

    Coinbase

    Springfield, IL
    2 days ago
  • Job Title: Senior .NET Developer Location: Initial 30 days On-site (may be required). Following...  ...record in building enterprise-grade web applications. The ideal candidate will bring...  ...in developing and consuming RESTful APIs and integrating with third-party services... 
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    Long term contract
    Work at office
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    Krasan Consulting Services

    Springfield, IL
    3 days ago
  • $100k

     ...project specifications, sales proposal and design documentation. Develop system user interfaces, according to project specifications or...  ...Skills: Niagara 4 Software DGLux5 Software Distech Controls Software API Protocols BACnet Protocol Modbus Protocol Lon Protocol IT... 
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    Remote job
    Full time
    For contractors
    Work at office
    Flexible hours
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    CBRE

    Springfield, IL
    2 days ago
  •  ...We are seeking a highly skilled .NET Lead Developer to join our team. As a lead developer, you...  ...Designing, coding, testing, and debugging web applications using .NET technologies Leading...  ...Experience with ASP.NET, MVC, and Web API Knowledge of front-end technologies such... 
    Local area

    iSoftTek Solutions Inc

    Springfield, IL
    3 days ago
  •  ..., fostering professional growth, and making a positive impact on our communities. Kentro is hiring a cleared mid-level Software/Web Developer to support the National Geospatial-Intelligence Agency. Responsibilities Designs and implements business process modernization and... 
    Work at office

    Kentro Estelle iLab

    Springfield, IL
    6 days ago
  •  ...changes on-site and assisting with bug remediation Java, C, C#, C++, or other comparable languages Experience on projects that develop complex software, ensuring a collaborative environment and configuration management. Experience implementing software life cycle... 
    Full time

    Phoenix Operations Group

    Springfield, IL
    2 hours ago
  • $7,787 per month

    Join to apply for the Lead Web Developer role at Illinois Department of Innovation & Technology (DoIT) Job Requisition ID: 50838 Closing Date: 10/28/2025 Salary: Anticipated Starting Salary $7,787 a month In this role, you will serve as a project coordinator for a full... 
    Permanent employment
    Full time
    Flexible hours

    Illinois Department of Innovation & Technology (DoIT)

    Springfield, IL
    4 days ago
  • $152.41k - $179.3k

     ...crypto technologies, scalable infrastructure and UI surfaces across web, mobile and browser extensions in a fast-paced industry with...  ...initiatives. The Markets Derivatives team is responsible for developing and managing the core systems powering both Coinbase’s US Derivatives... 
    Full time
    Local area

    Coinbase

    Springfield, IL
    2 days ago
  • $186.01k - $218.9k

     ...forward products and features. You will solve unique, large scale, highly complex technical problems, bridging the constraints posed by web-scale applications and blockchain technology. You will help build the next generation of systems to make cryptocurrency accessible to... 
    Full time
    Local area

    Coinbase

    Springfield, IL
    5 days ago
  • $152.41k - $179.3k

    Overview Ready to be pushed beyond what you think you’re capable of? At Coinbase, our mission is to increase economic freedom in the world. It’s a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform — and with...
    Full time
    Local area

    Coinbase

    Springfield, IL
    2 days ago
  •  ...structures to ensure that they are fit for use. Building a data pipeline from different data sources using different data types like API, CSV, JSON, etc. Preparing raw data for manipulation by Data Scientists. Implementing proper data validation and data reconciliation... 
    Remote job

    Medium

    Athens, IL
    3 days ago
  •  ...who will be responsible for designing and developing front-end, back-end and architecture,...  ...applications and working alongside design team for web design features, among other duties. Full...  ...product. Designing and developing APIs. Meeting both technical and consumer needs... 
    Remote job
    Work experience placement

    Medium

    Athens, IL
    6 days ago
  • ServiceNow (SNOW) Developer will perform configuration, development, support, and maintenance of the SNOW instances and business processes...  ...mapping roles and access controls Integrating the NOW platform’s API with third‑party technologies Developing and designing process... 
    Work experience placement
    Work at office

    NewGen Technologies

    Springfield, IL
    5 days ago
  • SharePoint/Business Intelligence Software Developers Contract SV Tech Systems is seeking a SharePoint/BI Software Developer for a client...  ...applications on various platforms using mainframe, client server, and web-based technologies. Responsibilities and Requirements: Working... 
    Contract work

    SV Tech Systems Inc

    Springfield, IL
    6 days ago
  •  ...Services Job Title: Senior Salesforce Platform Developer with Public Sector Solutions (PSS) Work...  ...Apex classes, triggers, and Lightning Web Components to extend Salesforce...  ...). Utilize Salesforce Connect, SOAP/REST APIs, JSON, SOQL, SOSL, and Chatter APIs for seamless... 
    Full time
    Remote work
    Flexible hours

    Krasan Consulting Services

    Springfield, IL
    3 days ago
  • $218.03k - $256.5k

     ...Attendance is expected and fully supported. Staff Software Engineer, Backend (Platform - Finhub) What you’ll be doing Architect and develop next generation book and records system that power Coinbase Provide technical structure to teams and work closely with management... 
    Full time
    Local area

    Coinbase

    Springfield, IL
    2 days ago
  • 5 years contract for SQL Developer (In person interview mandate) Full-time 360 IT Professionals is a Software Development Company based in...  ...that offers complete technology services in Mobile development, Web development, Cloud computing and IT staffing. Merging Information... 
    Full time
    Contract work

    360 IT Professionals

    Springfield, IL
    6 days ago
  • $50 - $80 per hour

     ...opportunity with our client in central Illinois. If you’re that person, submit your resume now! Responsibilities: The Embedded Software Developer will work as part of a team to read and modify existing embedded code in C, as well as write new embedded code in C.... 
    Hourly pay
    Permanent employment
    Contract work

    LEVI, RAY & SHOUP, INC

    Springfield, IL
    6 days ago