API Jobs in Illinois

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1 - 20 of 1,924 Jobs

API Developer - Security Engineer

TalentFish LLC

•

Rosemont, Illinois, USA

Full-time

Job Title: API Developer - Security Engineer Primary Location: Rosemont, IL - Hybrid 3 Days in Office Position Type: Direct Hire Overview TalentFish is casting a line for an API Security Engineer ! This is a direct hire, hybrid role based in Rosemont, IL. This hands-on engineering position supports secure development and operational practices for banking products and services. The role plays a critical part in enabling secure API integrations and advancing the secure software development lifec
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Posted 2 days ago | Updated 1 day ago

VP / API Engineering & Adoption Lead Analyst

Citi

•

Remote or Jacksonville, Florida, USA

Full-time

The API Engineering & Adoption Lead Analyst is a strategic professional who stays abreast of developments within own field and contributes to directional strategy by considering their application in own job and the business. Recognized technical authority for an area within the business. There are typically multiple people within the business that provide the same level of subject matter expertise. Developed communication and diplomacy skills are required in order to guide, influence and convinc
Posted 53 days ago | Updated 3 hours ago

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
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Posted 1 day ago

Urgent required Mulesoft Analyst with API Integration

Crea Services LLC

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Remote

Contract

Hello, urgent required Mulesoft 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 systems Key Re
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Posted 15 hours ago | Updated 15 hours ago

W2 - Software Engineer (Javascript, JQuery, HTML, SQL, Integrating systems, REST API's, Java) - Remote

Tanson Corp

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Remote or Minnesota, USA

Contract

Duties: Scope: The Software Engineer will design, develop, and support new/existing applications. He/She will primarily work with the team lead for work assignments and collaborate with the business users and other IT technical teams to gather requirements or additional information. Required: -At least 5 years of experience in software development and support using Javascript, JQuery, and HTML -At least 5 years of experience in Relational databases, including SQL, and integrating systems with o
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Posted 15 hours ago

Platform Business Analyst (SQL/SSO/API)

AFLAC

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Remote

Full-time

Salary Range: $81,000 - $115,000 Job Posting End Date: May 23, 2025 We've Got You Under Our Wing We are the duck. We develop and empower our people, cultivate relationships, give back to our community, and celebrate every success along the way. We do it all The Aflac Way . Aflac, a Fortune 500 company, is an industry leader in voluntary insurance products that pay cash directly to policyholders and one of America's best-known brands. Aflac has been recognized as Fortune's 50 Best Workplaces fo
Posted 19 days ago | Updated 1 hour ago

Senior Math Libraries Engineers - Python APIs

NVIDIA Corporation

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Remote or Santa Clara, California, USA

Full-time

NVIDIA is looking for a self-motivated and specialist software engineer for the design and development of high-performant Python APIs for our math libraries. In the last decade, Python has become the de-facto leading programming language for engineers in AI and data science, and more recently in HPC and scientific computing. NVIDIA has been at the forefront of providing GPU accelerated Deep Learning frameworks. These frameworks provide an efficient high-level programming interface allowing their
Posted 60+ days ago | Updated 4 hours ago

API Developer

Capabiliq INC

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Remote

Third Party, Contract

Experience with KONGPlugin Development using Lua
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Posted 29 days ago

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

LTIMindtree

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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
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Posted 34 days ago | Updated 16 days ago

Financial JAVA API Engineer

Eliassen Group

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Anywhere, US

Contract

Description: Our client, a leading financial services firm specializing in securitized assets is seeking a Financial Java API Engineer. We can facilitate w2 and corp-to-corp consultants. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance. Rate: $95 - $100 / hr. w2 Responsibilities: Utilize the Intex API to gather and analyze data on new securitized deals. Develop and implement custom cla
Posted 22 days ago | Updated 4 hours ago

.Net Developer with Corillian/ Azure API

American IT Systems

•

Remote

Contract, Third Party

Title: .Net Developer with Corillian/ Azure API Type of Hire: Remote Contract Must be willing to use your own laptop Must be willing to work in PST Hours Job: As a Fiserv Corillian Banking Platform Developer, you will support transformation initiatives for a premier banking enterprise. skills: Must have Fiserv Banking Platform Experience (Looking specifically for Corillian).Net developer who can consume Azure APISExperience in ADORest API developmentExperience with APIMKnowledge of DNA and how
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Posted 5 days ago | Updated 1 day ago

Application Developer (Axway API gatway)

KK Associates

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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
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Posted 60+ days ago | Updated 1 day ago

QA Automation Lead(Selenium/API) - Chicago, IL (Day1 Onsite) _ Need Locals

StarTechs Inc.

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Chicago, Illinois, USA

Third Party, Contract

Requirement details: Job Title: Sr. QA API Automation Engineer/ Lead Location: Chicago, IL (Day 1 onsite) Duration: 12+ Months Job Description: 9-10+ years of IT Experience Strong API testing skills with functional and automation Rest Assured, Selenium, CI/CD and agile methodology Strong API testing skills with functional and automation Able to Analyze requirements Prepare Test Plans, Testing requirements Good at interaction with Business Teams if any clarifications and work with offshore funct
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Posted 60+ days ago | Updated 19 days ago

Advanced Backend Python API Developer with Azure and Databricks.

Eliassen Group

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Anywhere, US

Contract

Description: *100% Remote role* We're recruiting an Advanced Backend Python Developer to create and implement APIs as well as robust data pipelines, API's, and scalable software solutions with best-practice data architectures. We want you to leverage your leading expertise in API Development and Data Engineering, software development, and cloud technologies to design and optimize the data infrastructure for a highly complex, employee-facing data and analytics web application. Team players only
Posted 48 days ago | Updated 4 hours ago

W2 - IT Solution Architect - API Marketplace & Cloud (React, Angular, GIT, Microservices) - Remote

Tanson Corp

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Remote or Minnesota, USA

Contract

Description: Job Title: IT Solution Architect API Marketplace & Cloud (Healthcare Preferred) Location: Remote Employment Type: Contract (W2) NO C2C Duration: 2 Years Start Date: ASAP Job Summary: We are seeking a senior-level IT Solution Architect with deep expertise in API marketplace architecture, cloud-native application design, and enterprise integration strategy. This individual will be the technical lead responsible for driving the implementation of a modern API platform, integrating wi
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Posted 9 days ago | Updated 15 hours ago

API SME & Technical Product Manager

iTECHEDGE

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US

Full-time, Contract, Third Party

Technical Product Manager API-Driven NaaS Platform Role Overview: We are seeking a Technical Product Manager (TPM) to drive the development of an API-first, programmable networking platform. This person will work closely with engineering teams to build seamless partner integrations and deliver an intuitive, scalable, and secure experience for enterprise customers. The ideal candidate will have strong product sense, execution skills, and experience leading API-driven product development with a fo
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Posted 54 days ago | Updated 23 hours ago

API Quality Analyst

Mitchell Martin, Inc.

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Remote or Lee's Summit, Missouri, USA

Full-time, Contract

Title: API Quality AnalystLocation: Remote Employment Type: ContractDescription: * The API Quality Analyst will collaborate with cross-functional teams to ensure software solutions meet quality standards and business requirements. * Responsibilities include reviewing requirements for testability, developing detailed test plans, executing test cases, managing defects, and communicating testing progress. * The role involves estimating testing efforts for projects, leading documentation reviews, an
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Posted 14 days ago | Updated 11 hours ago

API Automation Engineer

Allwyn Corporation

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Remote

Third Party, Contract

Position: API Automation Tester Location: Remote Duration: Long Term Job Description: Automation QA with hands-on experience in automation Selenium/Cucumber/TestNG/AppiumFunctional testing experienceDevelop test plans, test cases, test scripts and test reports on multiple projects of varying size.Perform testing on various software systems.Validate that user expectations are achieved during the testing process.Review user requirements document to ensure that requirements are testable.API auto
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Posted 22 days ago

Urgent opening for Boomi Integration & API Architect - Remote - Contract

ITBuild Solutions

•

Arkansas, USA

Contract, Third Party

Hi I hope you are doing well. This is Rahul from IT Data Build and I have a new position that may be relevant to your candidature. Please find details below and let me know with an updated copy of your Resume and contact details if interested so that I can present your profile to my Hiring manager. Position: Boomi Integration & API Architect Location: Remote Job Type: Contract Job Description:- We currently have an opportunity for Boomi Integration & API Architect" with one of our client i
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Posted 60+ days ago | Updated 3 hours ago

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

Ace Technologies, Inc.

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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
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Posted 41 days ago | Updated 9 days ago