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  • Senior Full-Stack Engineer: Java + React & APIs

    Citi is looking for a Senior Full Stack Developer in New Castle, Delaware, responsible for designing, developing, and implementing both...  ...front-end and back-end applications. The role emphasizes scalable APIs and responsive user interfaces using React. Qualified... 
    Suggested

    Citi

    New Castle, DE
    4 days ago

  • Principal Software Engineer (APIs)

     ...portfolios. Job responsibilities Own the design integration and API strategy (REST/GraphQL/gRPC, event‑driven) with clear versioning...  ...and oversee Encompass LOS integrations and customizations using Developer Connect, SDK, and plugins. Orchestrate Encompass data flows with... 
    Suggested

    Fairygodboss

    Wilmington, DE
    4 days ago

  • API Developer

     ...API Developer Work Location: Wilmington DE, Hybrid (min 2 days in person) Implementation Partner: Capgemini Minimum 6+ year of experience as software developer Have experience working with credit decisioning applications APIs Experience with REST, GraphQL, SOAP, and API... 
    Suggested

    Highbrow

    Wilmington, DE
    1 day ago

  • Sr .Net Developer

     ...Backend Sr.Net Developer Must have: C#, .NET, ASP.NET, Web API Rest API Web based doing lots of API endpoint development with C# Experience: C#, .NET, ASP.NET, Web API Experience building RESTful APIs Strong technical experience... 
    Suggested

    3B Staffing LLC

    Newport, DE
    5 days ago

  • Lead Backend Engineer (Python) - AWS, APIs & Scalability

    $100k - $135k

    Best Egg in Wilmington, Delaware is seeking a Lead Software Engineer II - Backend to build and enhance backend engineering solutions. This role involves designing high-quality Python services on AWS, contributing to team execution, and collaborating with Product and engineering...
    Suggested

    Best Egg

    Wilmington, DE
    4 days ago

  • Lead .Net Platform Engineer (Payments Ingestion) - Senior Vice President

    $156.16k - $234.24k

     ...strategy, defining engineering standards, and guiding a scrum team in developing core functionalities within the payments lifecycle. Key...  ...event‑driven, microservices‑based architectures utilizing REST APIs, .Net. React knowledge is a plus. Apply hands‑on experience with... 
    Suggested
    Full time

    Citi

    New Castle, DE
    3 days ago

  • Senior Principal Software Developer

     ...business goals and scalability requirements. Research, design, develop, and maintain applications, user interfaces, data analysis tools...  ...with TypeScript. Proficiency in web technologies: HTML, CSS, REST APIs. Hands-on experience with AWS or Azure Cloud, Docker containers,... 
    Suggested
    Local area

    Waters

    New Castle, DE
    4 days ago

  • Sr. Java Developer

     ...Sr. Java Developer New Castle, DE (3 days onsite - Hybrid) 10+ months Web Cam Interview $55-60/Hr on W2 Job Description: Lead...  ...technologies, responsible for design and development of services/APIs using Spring boot, Java, Apache Camel, OpenShift, AWS, API Gateway... 
    Suggested
    Remote work
    Flexible hours

    Syntricate Technologies

    New Castle, DE
    1 day ago

  • Senior Java Developer

    $120k

     ...Role- Senior Java Developer Location- Tampa (FL) / Columbus (OH) / New Castle (DE) (Onsite) Fulltime/Permanent Salary- $120K/A...  ...Java 8+ / Java 11+ Spring Boot (Core, MVC, Security) RESTful APIs (JSON, OAuth2, JWT) Microservices architecture JPA / Hibernate... 
    Suggested
    Permanent employment
    Full time

    Diverse Lynx

    New Castle, DE
    5 days ago

  • Senior .NET Developer/Hybrid/Delaware/$140k

    $140k

    A large, Biotech company, is adding multiple Senior developers for their team in New Castle, Delaware. The company manufactures biotech instruments...  ...have strong experience building RESTful web services and APIs within C#/.NET web applications. Additional experience building... 
    Suggested
    Full time
    3 days per week

    Motion Recruitment Partners LLC

    New Castle, DE
    2 days ago

  • Senior Principal Software Engineer

    $154k - $205.5k

     ...business goals and scalability requirements. Research, design, develop, and maintain applications, user interfaces, data analysis tools...  .... ~ Proficiency in web technologies: HTML, CSS, REST APIs. ~ Hands-on experience with AWS or Azure Cloud, Docker containers... 
    Suggested
    Full time
    3 days per week

    Waters

    New Castle, DE
    3 days ago

  • Java Developer

     ...Spring Data Microservices architecture (service decomposition, API contracts) REST APIs, JSON, OpenAPI / Swagger Kafka...  ...upstream/downstream systems Roles & Responsibilities Design, develop, and maintain Java based microservices Implement RESTful APIs... 
    Suggested

    Diverse Lynx

    New Castle, DE
    5 days ago

  • Senior .NET Developer - Hybrid, Biotech REST & React

    Motion Recruitment Partners LLC is seeking multiple Senior Developers to join their team in New Castle, Delaware. The role focuses on building...  ...maintaining web-based applications using C#/.NET and RESTful APIs, with an emphasis on both frontend and backend development.... 
    Suggested
    Full time

    Motion Recruitment Partners LLC

    New Castle, DE
    2 days ago

  • Junior Java Developer

     ...looking for entry-level software programmers, Java Full stack developers, Python/Java developers, Data analysts/ Data Scientists, Data Visualization...  ...• Spring boot, AWS, Microservices, Docker, Jenkins and REST API's experience • Excellent written and verbal communication... 
    Suggested
    Full time
    H1b
    Remote work

    SynergisticIT

    Bear, DE
    4 days ago

  • Senior Automation QA Engineer - API & Selenium (Java)

    A leading automation technology firm is seeking a highly skilled QA Automation Tester with 7 to 12 years of experience to enhance their team. The successful candidate will focus on designing and executing automated test scripts using tools like Selenium and REST ASSURED...
    Suggested

    Robotics Prcocess Automation, LLC

    Wilmington, DE
    1 day ago

  • Senior API Developer - Hybrid (2 days in-office)

    Highbrow LLC is seeking an experienced API Developer to work in Wilmington, Delaware, on a hybrid basis. Candidates should bring a minimum of 6 years of software development experience with strong skills in API management and backend programming. The role involves creating... 
    Work at office

    Highbrow

    Wilmington, DE
    2 days ago

  • .NET Fullstack developer

     ...through deployment. Duration: 12 Months Key Responsibilities Design, develop, and maintain enterprise web applications using ASP.NET WebForms...  ...scalable solutions utilizing Entity Framework Core, REST APIs, and modern software design patterns. Perform SQL Server performance... 
    Work experience placement

    CTG, Inc.

    Wilmington, DE
    5 days ago

  • Senior Full Stack Developer - Vice President

    Overview The Full Stack Developer is a senior‑level position responsible for designing, developing, and implementing both frontend and backend...  ...technology stack, with a strong emphasis on building scalable APIs and modern, responsive user interfaces using React. The overall... 

    Citi

    New Castle, DE
    4 days ago

  • Backend Lead Developer

     ...About the Role We are looking for a strong Backend Lead Developer to join our personalization engineering team for a large enterprise hospitality...  ...support recommendation, eligibility, workflow orchestration, API-driven experiences, and cloud-based platform capabilities used... 

    Serverless Guru

    Wilmington, DE
    4 days ago

  • .NET Developer

     ...Experienced .NET Developer We are seeking an experienced.NET Developer to design, build, and maintain enterprise-grade web applications...  ...Design, develop, and maintain robust backend services, APIs, and system integrations using.NET frameworks. Support and contribute... 

    IS3 Solutions

    Wilmington, DE
    4 days ago

  • .NET Developer

     ...Qualifications: ~8+ years of experience in .NET development (.NET Core and/or .NET Framework). ~ Strong proficiency in C#, ASP.NET, Web API, and Entity Framework. ~ Expertise in SQL Server or other relational databases. ~ Hands-on experience with RESTful services,... 

    Purple Drive

    Wilmington, DE
    4 days ago

  • Full Stack Java Developer

     ...Senior Java Full Stack Developer – Full‑Time, On‑Site We are looking for a Senior Java Full Stack Developer to join our growing engineering...  ...scalable technical solutions. Develop and optimize RESTful APIs and backend application functionalities for high performance and... 
    Full time

    MAS Global Consulting

    Wilmington, DE
    2 days ago

  • Java Full Stack Developer

     ...Job Title: Java Full Stack Developer Location: Columbus, OH / Wilmington, DE (Onsite) Job Type: Contract Responsibilities We are seeking...  ...Developer role Strong in Java and Python AWS services (EC2, S3, Lambda, API Gateway) Microservices & REST API development Terraform, React,... 
    Contract work

    VDart

    Wilmington, DE
    2 days ago

  • Java Fullstack developer

     ...Cand Job Summary We are seeking an experienced Java Full Stack Developer to join our team supporting enterprise-scale applications for JPMC...  ...components using React.js or Angular Build and consume RESTful APIs Work on application performance tuning and optimization... 
    Contract work

    Enexus Global

    Wilmington, DE
    3 days ago

  • Salesforce Lead Developer

     ...Title: Salesforce Lead Developer with Commerce Cloud skillset Location: Wilmington, DE Type: Contract Duration:...  ...Lightning Web Components, Apex, Aura, Flow, Triggers, Salesforce APIs, SOQL, and SOSL. Salesforce certification required:... 
    Contract work

    NR Consulting

    Wilmington, DE
    3 days ago

  • Embedded Software Engineer

     ...ll be immersed in cutting-edge technology, contributing to the developments that shape the analysis of material properties. With a focus on...  ...Competencies:** - Knowledge of advanced networking topics, including REST APIs and web technologies. - Experience in digital signal processing... 

    Liberty Personnel Services, Inc.

    Wilmington, DE
    3 days ago

  • Sr. Frontend React Developer

     ...Sr. Frontend React Developer Must have: ~7+ years React, TypeScript, and JavaScript. ~ Tailwind is nice to have ~ Excellent, perfect communication, client facing ~ LinkedIn Page We're looking for a hands-on, senior-level Frontend React... 

    3B Staffing LLC

    Newport, DE
    5 days ago

  • Java Application Support Engineer

    $55 - $65 per hour

     ...newer events system if they move quickly through support backlog. Skills Required any automation tool: selenium, uft Expert level Jira API testing Jules, Jenkins SQL Strong debugging skills. Knowledge of network protocols is important due to the type of application... 
    Work experience placement

    Ports North

    Wilmington, DE
    4 days ago

  • Senior Java Full-Stack Engineer | AWS Cloud & Microservices

    VDart Inc. is looking for a Java Full Stack Developer based in Wilmington, DE. This role involves strong experience in Java and Python,...  ...development using React. Responsibilities include designing REST APIs and building automated CI/CD pipelines. #J-18808-Ljbffr VDart... 

    VDart Inc

    Wilmington, DE
    2 days ago

  • Lead Engineer II - Backend (Python)

    $100k - $135k

     ...Product, and other backend and frontend teams to build performant, maintainable, and scalable APIs, serverless functions, and containerized services. What You Will Do Design, develop, and deliver high‑quality backend Python services iteratively and incrementally. Take... 
    Contract work
    Temporary work
    Flexible hours

    Best Egg

    Wilmington, DE
    4 days ago