API Developer Jobs in Hazel Crest, IL

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API Developer

Sonata Software North America

Remote

Contract

Hi All, Sonata Software is actively looking for an API Developer in Remote with our Direct End Customer in USA. Please review the detailed JD below and share with me your updated resume. Job Title: API Developer Duration: 6 Months Location: Remote in USA Experience: 6 to 10 Years Skills Required: 6+ years of experience in API development and systems integrationStrong experience with RESTful API design and best practices.Proficiency in one or more programming languages (e.g., Java, Python, Node

Senior Java/API Developer - Remote

Kforce Technology Staffing

Remote or Jacksonville, Florida, USA

Contract

RESPONSIBILITIES: A client with Kforce is seeking a SeniorJava/API Developer to join their team. This is a remote position working EST. Summary: This position plays a pivotal role in driving the development and implementation of cutting-edge software solutions within our dynamic work environment. Key responsibilities include designing, coding, testing, and deploying high-quality software applications, leading and mentoring a team of engineers, and collaborating with cross-functional teams to en

Lead Java/Spring Boot API Developer with Pro*C Exp

Ace Technologies, Inc.

Remote

Third Party, Contract

Location : REMOTE Duration :12 months Responsibilities: Backend Development: Design, develop, and maintain robust, scalable APIs using Java and Spring Boot.Implement RESTful services to meet business requirements.Leverage Spring dependency injection.Integrate core Java solutions as backend dependencies when API s are not the ideal solutionLeverage existing legacy code as requirements.Code Quality and Testing: Produce clean, maintainable, and efficient code.Implement comprehensive JUnit tests and

Web API Developer

Mass General Brigham

Remote or Somerville, Massachusetts, USA

Full-time

Site: Mass General Brigham Incorporated At Mass General Brigham, we know it takes a surprising range of talented professionals to advance our mission-from doctors, nurses, business people and tech experts, to dedicated researchers and systems analysts. As a not-for-profit organization, Mass General Brigham is committed to supporting patient care, research, teaching, and service to the community. We place great value on being a diverse, equitable and inclusive organization as we aim to reflect t

IBM API Connect / IBM DataPower Developer

TalTeam

Remote or Reston, Virginia, USA

Contract

PURPOSE: Performs complex analysis, design, development, testing, and debugging of computer software ranging from operating system architecture integration and software design to selection of computer systems, language, and/or equipment. Designs, develops/codes, tests, and documents critical and complex application programs for computer systems. Works with appropriate stakeholders to define system scope and objectives and establish baselines. Establishes project standards and processes. Breaks d

React.JS Developer with .NET & API

SBS Corp.

US

Contract, Third Party

React Developer with .NET & API Integration Skills Looking for a React Developer with a knack for seamless UI implementation and API integration who can bring Figma designs to life, integrate APIs, and have an understanding of the .NET framework. Experience Level: 10+ years Key Skills: Strong expertise in React.js (UI implementation from Figma) Experience with API integration Familiarity with .NET framework Ability to write clean, efficient, and maintainable code

Senior Software Engineer, Fullstack (Developer - CDP API)

Coinbase

Remote

Full-time

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 it, the future global financial system. To achieve our mission, we're seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the

Application Developer (Axway API gatway)

KK Associates

Remote or US

Contract

Title : Application Developer(Axway API Gateway) Location : Remote Duration : 12+ Months Job Description: Primary - Axway API gateway (Vordel), Web services, JSON, SOAP/REST API Secondary - Java, Spring, SQL, Microservices We seek a skilled Axway API Gateway Engineer to manage and optimize our enterprise API Gateway systems. Responsible for configuring and managing the day-to-day operations of the Axway API Gateways, monitoring the gateway performance, and troubleshooting any issues that a

Database Developer IV Lead

Randstad Digital

Remote or Madison, New Jersey, USA

Contract

job summary: We're hiring a Senior API Engineer (remote, contract-to-hire) to build cloud-native APIs using Node.js and AWS. You should be skilled in microservices, serverless, IaC, and CI/CD, with a strong understanding of networking and security. This role requires a self-starter who can design scalable solutions and has strong communication skills. location: Madison, New Jersey job type: Contract salary: $81 - 83 per hour work hours: 9am to 5pm education: Bachelors responsibilities: -

EDI Developer

Mastech Digital

Remote or Texas City, Texas, USA

Contract

Mastech Digital provides digital and mainstream technology staff as well as Digital Transformation Services for all American Corporations. We are currently seeking an EDI Developer for our client in the Consulting domain. We value our professionals, providing comprehensive benefits and the opportunity for growth. This is a Contract position, and the client is looking for someone to start immediately. Duration: 6+ Months Contract Location: Remote Salary: $65.00-$70.00/Hourly Role: EDI Developer P

Java FS Lead with Azure, API Exp @ Chicago, IL

LTIMindtree

Chicago, Illinois, USA

Full-time

About US: LTIMindtree is a global technology consulting and digital solutions company that enables enterprises across industries to reimagine business models, accelerate innovation, and maximize growth by harnessing digital technologies. As a digital transformation partner to more than 700+ clients, LTIMindtree brings extensive domain and technology expertise to help drive superior competitive differentiation, customer experiences, and business outcomes in a converging world. Powered by nearly 9

Microservice onsite Lead

Hecta Data LLC DBA Vilwaa

Remote

Contract, Third Party

Greeting from Vilwaa, Job Title : Microservice onsite Lead Type: Contract Location: Remote Duration: 6+ Months Start Date: Immediate About US At Vilwaa (), we are focused towards delivering IT services and solutions in Data Engineering, Cloud Infrastructure solutions , Digital Application Development, (IoT) - Internet of Things. We are seeking an experienced Microservice onsite Lead with deep expertise in integrations with database experience to lead and deliver end-to-end enterprise transform

API Gateway Engineer - API, Java, Spring Boot

M&T BANK CORPORATION

Remote or Buffalo, New York, USA

Full-time

This role follows a hybrid work schedule; offering the flexibility to work remotely two days a week, while providing the opportunity for onsite and in person collaboration the other three days. Overview: Are you ready to be at the forefront of banking technology? Join M&T Bank as a key member of our development team to enable bank-wide capabilities and securely host APIs. As a pivotal team member, you will help define the direction of our API ecosystem, ensuring both security and alignment with

Software Engineer - API Development

Xylo Technologies, Inc.

Remote

Contract

Candidates need work only on W2 for this job Title: Software Engineer Duration: Until 12/31/2025 Client: Mayo Clinic Req ID: 36014839 RemoteRequirements: 5+ years experience building distributed software systems with n-tier architectures.Should have an expert level of experience in one of the following and be proficient in all: API development with Python, Node, Java, or .Net.Frontend development with ReactJS, JavaScript, HTML/CSS.Operations integration with reporting and performance tools.Expe

Senior C++ Windows Engineer (Windows API)

GlobalLogic Inc.

Remote

Full-time

Job Description: Good theoretical and practical knowledge of C++ and STLExperience with complex SW multi-threaded environmentsExperience in development for Windows(compilers, linkers, build systems, debuggers), knowledge of WinAPIExperience with Windows Internals or kernel development (software driver level, not embedded)Knowledge of the BLE protocol and stackDebugging techniquesCapable of independently taking a feature through the entire development cycle while cooperating with multiple teams.

Urgent required Mulesoft System Analyst with API Integration

Crea Services LLC

Remote

Contract

Hello, urgent required Mulesoft System Analyst with API Integration remote role in USA. Below is the job description for refrences: We are seeking a skilled System Analyst to support the design, development, and delivery of API-based integrations using the MuleSoft Anypoint Platform. This role involves close collaboration with business stakeholders, architects, and developers to gather requirements, define integration logic, and ensure successful API implementations across enterprise system

Broadcom API Gateway (or) Layer 7 API Gateway - Remote

Pioneer Corporate Services Inc

Remote

Third Party, Contract

Hi, Title: Broadcom API Gateway (or) Layer 7 API Gateway Location: Remote Exp: 10+ Years JD: We have a critical requirement for 3 Java Developer position with AMPF. These resources would be part of InfoSec organization within Identity and Access Management (IAM) team. The ideal candidates should have experience in Java development, RESTful APIs, web development also familiar with Broadcom API Gateway. Key Responsibilities: I AM Engineer will develop the Java Restful services and Java Web applic

Technical Project Manager - E-Commerce/EDI/API/Data - Remote - Contract - W2 only

Stafford Technology

Remote

Contract

Job Title: Technical Project Manager (E-Commerce, API, Data Integration, EDI) Overview: We're looking for a Technical Project Manager to lead projects focused on E-Commerce, API development, data integration, and EDI. This role requires a strong technical foundation and excellent project leadership skills to drive cross-functional initiatives from start to finish. This job is mostly remote with 1-2 trips per year to Columbus, OH for training and team activities. Pay range is $55-70 per hour. Ke

Only Full Time (No Contract) | H1B Transfer will also work | Sr. Python Full Stack Engineer (with React, AWS Lambda, API Gateway, and security best practices) | Remote

Anagha Techno Soft

Remote

Full-time

Only Full Time (No Contract) | Sr. Python Full Stack Engineer (with React, AWS Lambda, API Gateway, and security best practices) | Remote |H1B Transfer will also work Job Title: Sr. Python Full Stack EngineerLocation: Remote (USA)Job Type: Full-Time / Permanent (No Contract)Experience: 10+ Years H1B Transfer will also work About the RoleWe are looking for a Senior Python Full Stack Engineer with strong expertise in React, AWS Lambda, API Gateway, and security best practices to join our growing

W2 - IT ARCHITECT (API development, Python, Node, ReactJS, Cloud, Healthcare, Data design) - Remote

Tanson Corp

Remote or Minnesota, USA

Contract

Duties: Requirements: -5+ years experience building distributed software systems with n-tier architectures. -Should have an expert level of experience in one of the following and be proficient in all: API development with Python, Node, Java, or .Net. Frontend development with ReactJS, JavaSript, HTML/CSS. -Operations integration with reporting and performance tools. -Experience with cloud-based deployment environments. -Designs comprehensive technical solution/architecture to meet business re