API jobs in Illinois

Naperville, Illinois

•

13d ago

8+ years of experience in softwaredevelopment and integration. Strong hands-on experience with RESTfulAPIs, Swagger/OpenAPI, and JSON/XML. Proficiency in Java, Spring Boot, orsimilar backend technologies. Experience with API gateways (e.g., Apigee,AWS API Gateway, Kong). Solid understanding of systems integrationpatterns (e.g., point-to-point, hub-and-spoke, ESB). Familiarity with OAuth2, JWT, and secureAPI design. Experience with Banker/Teller applications orsimilar financial systems. Excellent

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Contract, Third Party

Depends on Experience

Technical Lead- CRM API INTEGRATION

Remote

•

6d ago

Lead exp in CRM integration. Integration to CRM system APIs such as Redtail, Wealthbox or any CRM application is fine. Act as a lead, coordinate onshore/offshore development team. Wealth management domain expertise is desired Technical Lead -For CRM API integration Implement integration between client management application and CRM systems such as Redtail- Offshore coordination Act as central delivery lead - coordinate onshore/offshore development team and communicate updates to key stakeholder

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Full-time, Third Party

Depends on Experience

Tech Lead / Delivery Lead (API Integration)

Remote

•

3d ago

Job Title : Tech Lead / Delivery Lead (API Integration) Location : Remote Duration : 12 Months NOTE : NO H1B JD 8+ years of experience in software development and integration. Strong hands-on experience with RESTful APIs, Swagger/OpenAPI, and JSON/XML. Proficiency in Java, Spring Boot, or similar backend technologies. Experience with API gateways (e.g., Apigee, AWS API Gateway, Kong). Solid understanding of systems integration patterns (e.g., point-to-point, hub-and-spoke, ESB). Familiarity with

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Contract

Depends on Experience

FIX API Developer

Remote

•

23d ago

Role :: FIX API Developer Location :: Remote / Raleigh, NC Type :: Fulltime Job Description Implementing FIX connectivity: This involves setting up and configuring connections between trading systems using the FIX protocol, ensuring proper session management (logon, heartbeat, logout), and handling message sequencing. Developing and integrating trading applications: Building applications that interact with various financial institutions using FIX messages to send orders, receive execution report

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Full-time

$100000 - $120000

Product Owner with Kong API Exp.

Hybrid in Chicago, Illinois

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18d ago

Title : Product Owner with Kong API Exp. Location : Chicago, IL - Hybrid - 3 days Main responsibilities in this role: Own the vision, roadmap, and delivery of the internal API platform built on Kong Gateway Enterprise Partner with engineering, architecture, DevOps, and security teams to design and deliver scalable, secure, and performant API capabilitiesContribute/Write/Update technical documentation such as high level designs or solution design documentsDefine and prioritize product features in

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Full-time, Third Party

Depends on Experience

API Progress Developer

Remote or Hybrid in Houston, Texas

•

Today

Role: Senior API Developer (Progress Database) Duration: 3 Month Contract + extensions possible Location: Remote Work Authorization: , , or Authorized to Work in the USPosition Overview: We are seeking a Senior API Developer with Progress database experience to support ERP integrations and expand our internal API capabilities. This is a specialized role focused on building APIs that connect to an ERP system, which runs on a Progress backend. The ideal candidate has direct hands-on Progress deve

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Contract

BASED ON EXPERIENCE

Cloud Data & API Engineer

Hybrid in Chicago, Illinois

•

16d ago

Position Description: Client: Financial Services Job Title: Cloud Data & API Engineer Location: Chicago, IL 60604 Employment Type: Full-Time, Permanent Interview Mode: In-Person Work Mode: Hybrid (3 days in office, 2 days Remote) Note: Must be at a drivable distance from Client Location (Chicago, Illinois 60604)Only local candidates who are comfortable working in a W2 salaried role will be considered. Job Description: Our Financial Services client is seeking a Cloud Data & API Engineer with s

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Full-time

$100,000 - $140,000

Principal Engineer (Director IC), Exchange Platform (APIs, Files, AI protocols, and others)

Remote or Plano, Texas

•

Today

Playing an essential role in the U.S. economy, Fannie Mae is foundational to housing finance. Here, your expertise can help fuel purpose-driven innovation that expands access to homeownership and affordable rental housing across the country. Join Fannie Mae to grow your career and help people find a place to call home. Job Description As a valued contributor to our team, you will provide expert advice to the team and participate in designing, developing, testing, and/or maintaining hardware, t

Full-time

USD 196,000.00 - 264,000.00 per year

CJA Developer - Remote. Must have strong experience in Strong expertise in Adobe Customer Journey Analytics (CJA) and Analysis Workspace, AEP datasets, schemas, and connections, SQL, data transformation, and API integration.

Remote

•

4d ago

Role: CJA Developer Location: Remote Roles/Responsibilities: 12+Years Configure and manage CJA connections, data views, and metrics. Integrate data from AEP and other systems into Customer Journey Analytics. Build dashboards and visualizations using Analysis Workspace. Ensure data accuracy, validation, and consistency across channels. Collaborate with business stakeholders to define KPIs and reporting needs. Optimize performance of queries and visualizations. Skillset: Strong expertise in Adob

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Contract, Third Party

Depends on Experience

API Testing Consultant

Remote

•

4d ago

For our Detroit based Energy company client we are looking for a API Testing Consultant

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Full-time

$45 - $55

QA Claims Processing - Ready API

Hybrid in Chicago, Illinois

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4d ago

NO SPONSORSHIP This is a contract to hire role - remote during the contract then on site 2 days on site QA ENGINEER - Ready API Testing BILL RATE: Open LOCATION: CHICAGO, IL, must be local and open to contract to hire, once hired will come into the office 2 days a week Quality assurance in claims processing so claims payment claims systems insurance health care etc. backend data backend SQL testing python automation selenium or ready API AI tools or command prompting for QA testing regression

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Full-time

Depends on Experience

Verkada API Consultant

Remote or Las Cruces, New Mexico

•

Today

Description We are looking for a skilled Verkada API consultant experienced with programming (Python preferred) and knowledge of the Microsoft Graph API and Verkada APIs. This role involves developing and maintaining software solutions to enhance application functionality and automation processes. Responsibilities: Manage service accounts, including selecting accounts from an available pool and assigning active timeframes. Configure access codes and define location access for service accounts

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Contract

Director, Applications and Integrations

Hybrid in Chicago, Illinois

•

3d ago

Position Overview The company needs a Head of Applications & Integrations to own the implementation, configuration, and integration of enterprise software systems across our growing network of RIAs. These systems form the backbone of how we onboard new firms, empower advisors, and generate actionable insights essential to companies' continued growth. The ideal candidate blends deep technical fluency with strong business judgment and exceptional stakeholder management. They are equally comfortabl

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Full-time

$140,000 - $180,000

Mainframe (Mainframe + Java Api + MULESOFT)

Remote

•

13d ago

Immediate need for a talented Mainframe (Mainframe + Java Api + MULESOFT). This is a 06+ months contract opportunity with long-term potential and is located in U.S(Remote). Please review the job description below and contact me ASAP if you are interested. Job ID: 25-86105 Pay Range: $50 - $60/hour. Employee benefits include, but are not limited to, health insurance (medical, dental, vision), 401(k) plan, and paid sick leave (depending on work location). Key Requirements and Technology Experience

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Contract

$50 - $60

CICS (CICS is to a mainframe what Kubernetes + message queues + API gateways + ACID databases are to a distributed microservices world

Remote or Jersey City, New Jersey

•

3d ago

hi, We have below position from one of our client. Client is acquiring a credit card product from another Bank, and need support. CICS (CICS is to a mainframe what Kubernetes + message queues + API gateways + ACID databases are to a distributed microservices world except it s centralized, extremely fast, and battle-tested for decades.) New Jersey preferred but can consider Remote & 4-6 months duration Please let me know your interest. Sincerely, HR Manager nFolks Data Solutions LLC Phone: Email

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Contract, Third Party

Depends on Experience

CJA Developer

Remote

•

5d ago

Trident Consulting is looking for a "CJA Developer" @ (Remote)" for one of our clients. Role: CJA Developer Location: Remote Roles/Responsibilities: Configure and manage CJA connections, data views, and metrics. Integrate data from AEP and other systems into Customer Journey Analytics. Build dashboards and visualizations using Analysis Workspace. Ensure data accuracy, validation, and consistency across channels. Collaborate with business stakeholders to define KPIs and reporting needs. Optimize

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Contract

$60 - $70

API Developer

Remote

•

2d ago

Role: API Developer Required Skills: Strong experience with Java (Java 8 or higher) and object-oriented programming principles.Proficiency in API design and development (REST, SOAP) with knowledge of HTTP and SOAP ProtocolsExperience with Spring Framework (Spring Boot, Spring MVC).Strong understanding of microservices architecture.Knowledge of database technologies (SQL/NoSQL) like MySQL, PostgreSQL, etc. PostgreSQL is preferred.Experience with cloud platforms (AWS, Azure, Google Cloud Platform)

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Full-time

$80,000 - $100,000

Charles River CRIMS Platform Developer

Remote

•

3d ago

Charles River CRIMS Platform Developer Location: Remote (USA) Duration: 12 Months Key Skills and Responsibilities Charles River Expertise: Strong understanding and development experience with Charles River IMS, including developing interfaces, troubleshooting, and configuring out-of-the-box as well as custom imports and exports. Experience using the Charles River API to develop Java plugins is also required. Programming Languages: Proficiency in Oracle Java. Scripting experience in Groovy, Pytho

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Contract, Third Party

Depends on Experience

OnBase Admin/Dev - remote

Remote

•

3d ago

Urgent Requirement: OnBase Administrator/Developer Duration: 12 months Location: remote Visa Type: All Tax Term: W2/C2C Interview: MS Team Required Skills: 1.OnBase Certified System Administrator certification is required - at least 4 years 2.OnBase Certified Workflow Administrator certification or OnBase Certified Workflow Engineer certification - at least 4 years 3.OnBase WorkView Certification and OnBase Certified Application Programming Interface (API) Certification - at least 3 years 4.E

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Third Party, Contract

$60 - $65

Senior Full Stack Engineer / Remote / Ruby on Rails / JavaScript / API Integrations

Remote or Los Angeles, California

•

Today

Job Description A remote-first startup is seeking a FullStack Engineer for a contract-to-hire opportunity. This role is ideal for someone who thrives in fast-paced environments and enjoys building scalable integrations, backend systems, and intuitive user experiences. The company is focused on redefining how digital creators and sellers collaborate and grow together, using modern web technologies and automation. This is a high-impact role where you'll lead the development of core systems that

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Full-time

90/hr - 120/hr

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API jobs in Illinois, USA