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  • Senior API Migration Engineer (REST APIs - Cloud Migration)

     ...Description Remote Our client seeks a Senior API Migration Engineer to lead the migration, validation, and optimization of REST APIs from on-prem Exadata to Oracle Database in the cloud. The role focuses on compatibility remediation, authentication alignment, performance... 
    Senior
    Remote work

    Eliassen Group

    Chicago, IL
    1 day ago

  • Senior Backend/API Security Developer

    $82k - $123k

    Senior Backend/API Security DeveloperLead II - Software EngineeringWho We Are:Born digital, UST transforms lives through the power of technology...  ....You Are:UST is searching for a Senior Backend/API Security Developer (B2) with strong expertise in Python, Node.js, or Java and... 
    Senior
    Full time
    Temporary work
    Part time
    Work at office
    Local area
    Remote work
    Flexible hours

    UST Global

    Chicago, IL
    3 days ago

  • Senior Spark developer

     ...Role- Senior Java Developer (Java, Spark, GCP) Location- Chicago, IL, Texas, Atlanta, GA Employment Type: Full-Time Job Summary We...  ...performance Java applications. Build and support RESTful APIs and microservices-based solutions. Develop cloud-native applications... 
    Senior
    Full time

    BBI

    Chicago, IL
    4 days ago

  • Senior Hogan IDS Developer

     ...candidate will be highly skilled as a Mainframe Engineer with hands on experience with COBOL, JCL, VSAM, CICS, PCDs, CA-7 scheduling, APIs. This Engineer will work on Hogan IDS platform supporting the DDA and TDA functions and its integration with a vendor platform (... 
    Senior

    Luxoft

    Chicago, IL
    4 days ago

  • MuleSoft Senior Developer- Enterprise

    $167k - $203k

    MuleSoft Senior Developer- EnterpriseOverviewYou are a self-driven individual with a "get it done" attitude and a passion to solve complex business...  ...an ERP system). You enjoy working in agile teams to deliver API-led integration solutions and are excited to learn and... 
    Senior
    Temporary work
    Local area

    Slalom

    Chicago, IL
    2 days ago

  • Senior Artificial Intelligence Engineer

    $140k - $160k

     ...Senior Artificial Intelligence Engineer (AI Research and Engineering) Salary: $140k-$160k + 15% bonus Location: Chicago, IL Hybrid...  ...~ Strong Python; proficient SQL; solid distributed systems and API design fundamentals ~ Hands-on experience building LLM-powered... 
    Senior
    Full time
    Remote work

    Request Technology, LLC

    Chicago, IL
    3 days ago

  • Senior Developer I - Private Markets, Fund Finance

    $130k - $170k

    Senior Developer I - Private Markets, Fund FinanceAbout the RoleNeuberger is seeking a talented, hands-on Senior Full-Stack Engineer to join...  ...architecture, state management, data-fetching patterns, type-safe API contracts, and robust error handlingPartner with UX/UI... 
    Senior
    Full time
    Local area
    Shift work

    Neuberger Berman

    Chicago, IL
    4 days ago

  • Senior EDI Developer

    $88.9k - $155.5k

     ...now and in the future. Summary: In this role, you will develop, implement, and support enterprise integration solutions that enable...  ...and maintain integrations using Boomi AtomSphere across EDI, API, and application integration patterns, connecting trading partners... 
    Senior
    Work at office
    3 days per week

    Vizient

    Chicago, IL
    5 days ago

  • Senior Software Engineer

     ...Senior Specialist Software Engineer Type: Full time/Perm Contact: Ashley at ****@*****.*** Special notes: This role is...  ...performance optimization. Understanding of network protocols and APIs, with experience implementing REST and WebSocket APIs. FIX... 
    Senior
    Permanent employment
    Full time
    3 days per week

    Forbes Technical Consulting

    Chicago, IL
    1 day ago

  • Senior Software Engineer

     ...Senior Software Engineer | Direct Hire | Chicago, IL (Hybrid) | Investment Management...  ...abstractions, and delivering scalable, intuitive APIs. Success in this role requires more...  ...curious, challenge assumptions, and develop a deep understanding of the investment business... 
    Senior
    Full time
    Work at office
    Visa sponsorship
    3 days per week

    Davies Talent Solutions

    Chicago, IL
    2 days ago

  • Developer Senior

    $165.69k

     ...Anticipated End Date: Position Title: Developer Senior Job Description: Developer Senior Location: Ideal candidates will...  ...Experience architecting and deploying secure web services and APIs including Web API WCF (SOAP) and RESTful services for cross-platform... 
    Senior
    Full time
    Temporary work
    Work experience placement
    Local area
    Monday to Friday
    1 day per week

    Elevance Health

    Chicago, IL
    2 days ago

  • Senior Software Engineer

     ...We’re hiring a Senior Software Engineer to support a major technology initiative focused on new customer-facing web and mobile experiences...  ..., and the system design that follows — the data model, the API contracts, the failure modes. Direct implementation rather than... 
    Senior
    Full time
    Contract work
    Shift work

    Alined Consulting Group

    Chicago, IL
    1 day ago

  • Senior Software Engineer

     ...architecture, product quality, and the impact of what they ship. The work • Design, build, and support scalable applications, APIs, and backend services. • Own features from initial design through development, testing, deployment, and production support. •... 
    Senior
    Full time

    Hirewell

    Chicago, IL
    3 days ago

  • Senior AI Engineer

    $140k - $165k

     ...Senior AI Engineer A major enterprise is building a new AI Engineering function and is looking for a senior technical leader to anchor...  ...: Deep engineering experience across distributed systems, APIs, microservices, and event‑driven design Strong Python expertise... 
    Senior

    Qorali

    Chicago, IL
    4 days ago

  • Senior Software Engineer

     ...enhancing, and delivering data to customers. This full-stack engineering role spans ingestion, ETL, big data solutions, ultra efficient APIs, and web and mobile applications using AI-assisted development workflows. We build iterative solutions with properly tested code in... 
    Senior
    Flexible hours

    SPINS

    Chicago, IL
    4 days ago

  • Senior Artificial Intelligence Engineer (Chicago)

    $140k - $160k

     ...Senior Artificial Intelligence Engineer (AI Research and Engineering) Salary: $140k-$160k + 15% bonus Location: Chicago, IL Hybrid...  ...~ Strong Python; proficient SQL; solid distributed systems and API design fundamentals ~ Hands-on experience building LLM-powered... 
    Senior
    Full time
    Remote work

    Request Technology, LLC

    Chicago, IL
    16 hours ago

  • Senior Software Engineer

     ...are seeking a talented and experienced Senior Software Engineer to join our team. In this...  ...vs. OLTP). Define data contracts and API designs (OpenAPI, Protobuf, AsyncAPI)....  ...architectural decisions and mentoring junior developers. Cross-Functional Collaboration: Work... 
    Senior
    Full time
    Work at office
    Remote work
    Work visa

    Jobba Trade Technologies

    Chicago, IL
    3 days ago

  • Senior Software Engineer

    $150k - $220k

     ...peersYou haveHave 4+ years of experience building and designing systems with several lifecycles Extensive experience implementing secure APIs, highly available and observable servicesLed and mentored more junior software engineersKept tight control on multiple competing... 
    Senior
    Full time
    Visa sponsorship
    Free visa

    Finix Payments

    Chicago, IL
    3 days ago

  • Senior Advanced Software Engineer - Rendering

    $150k - $172k

     ...multiple platforms and hardware requirements. Job Summary As a Senior Advanced Software Engineer at Light & Wonder, you will be a key...  ...and/or C#. Deep understanding of rendering pipelines, graphics APIs and GPU architecture. Strong grasp of low-level performance optimization... 
    Senior
    Full time
    Work at office
    Local area

    Light & Wonder

    Chicago, IL
    6 days ago

  • Senior Software Engineer

     ...Senior Software Engineer — Agentic Voice (Healthcare) Company: Attune Location: West...  ...Responsibilities: Product Development: Design, develop, and maintain high-quality web and...  ...leveraging websockets, SSE, REST APIs, service workers, and more. Strong backend... 
    Senior
    Full time
    Work at office
    Local area
    Flexible hours
    3 days per week

    Attune

    Chicago, IL
    4 days ago

  • Senior Software Engineer - DeFi

    $130k - $225k

     ...understanding of the business. We strive for an environment where developers have the autonomy to pursue business solutions without...  ...settlement, and fees across different ERC standardsDeveloping APIs and UIs that give traders and operations teams real-time visibility... 
    Senior
    Contract work
    Temporary work
    Flexible hours

    DRW

    Chicago, IL
    2 days ago

  • Senior Software Engineer - Guidewire Developer

    $72k - $141k

     ...employees are used to their fullest potential. Senior-level individual contributor responsible for designing, configuring, integrating, developing, and supporting complex Guidewire Cloud...  ..., and integrations using Cloud APIs, REST services, microservices, and vendor... 
    Senior
    Full time
    Work experience placement
    Work at office

    CNA Financial

    Chicago, IL
    2 days ago

  • Senior Java Software Engineer

    $130k - $160k

     ...messaging technologies, including Kafka, with a focus on building scalable, resilient and fault-tolerant systems. Strong experience in API development, SQL databases, and data storage. Hands-on experience with AWS services, and an understanding of cloud-based design,... 
    Senior
    Full time

    Qorali

    Chicago, IL
    1 day ago

  • Senior Backend Software Engineer

     ...Telematics Data Platform Developer You will build upon our telematics data platform which drives Client’s digital applications to meet...  .... Technical Skills Required Java 11+ Spring Boot API development: design and architecture, security best practices, OAuth... 
    Senior

    Samprasoft

    Chicago, IL
    2 days ago

  • Senior Solutions Engineer

    $140k - $180k

     ...traceability needs. Hands-on experience configuring or implementing enterprise software, plus familiarity with data integrations, APIs, and system interoperability. Proficiency with design and documentation tools such as Figma or FigJam, and project tracking tools... 
    Senior

    Clera

    Chicago, IL
    19 hours ago

  • Remote Senior Java Web Developer - REST & Frontend Expert

    $115k - $135k

     ...A leading technology firm is seeking a highly skilled Senior Java Web Developer to support web and API-based software solutions for clients. This remote role requires at least 6 years of experience and involves designing, developing, and implementing applications while... 
    Senior
    Remote work

    Next Generation Inc.

    Chicago, IL
    4 days ago

  • Senior Cognos TM1 Developer

     ...adds to our offerings. We learn continuously, both on the job and through formal training programs.Job DescriptionPosition: Senior Cognos TM1 Developer Location: Chicago IL Job DescriptionStrong TM1 Developer with over 4 to 5 years of actual TM1 Development experience.... 
    Senior

    System Canada Technologies

    Chicago, IL
    5 days ago

  • Senior Web UI Developer

     ...world customer needsJob DescriptionTitle : Senior Web UI DeveloperLocation : Chicago,...  ...Technical Skills : • Front End, Web Application Developer - building client-side browser html...  ...desired. • Highly skilled in HTML and its API’s CSS3. • Added advantage if worked in Knockout... 
    Senior
    Permanent employment
    Full time

    Ventures Unlimited

    Chicago, IL
    4 days ago

  • Senior IOS Engineer

     ...Job Overview We are looking for an experienced Senior iOS Engineer to design, develop, test, and maintain high-quality iOS applications for iPhone and...  ...MVVM, MVC, or Clean Architecture. Integrate RESTful APIs and backend services to support application functionality... 
    Senior
    Full time
    Contract work
    Local area

    PB consulting

    Chicago, IL
    1 day ago

  • Senior Developer, Data Engineering

    $110k - $156k

     ...About the Company The Senior Developer, Data Engineering will lead the design, development, and delivery of Evention's enterprise data...  ...overhead than the job needs. Build and maintain integrations and API connections to client data sources (PMS, POS, OTA, and other... 
    Senior
    Full time

    Evention

    Chicago, IL
    1 day ago