Temporary Api Developer Jobs in Chicago, IL (NOW HIRING)

Job Title: Senior Enterprise Data Integration Engineer
Role Overview
We are seeking a Senior Enterprise Data Integration Engineer to architect, build, and support high-performance data integrations across our enterprise ecosystem. You will be the primary technical lead for connecting our core business applications with third-party platforms, ensuring that data flows are real-time, secure, and scalable.
This is a senior-level position for an engineer who thrives in complex environments. You will lead the design of system scope, define integration patterns, and maintain the integrity of our data pipelines. If you have a deep passion for middleware, a rigorous approach to API design, and the ability to serve as a technical lead for cross-functional initiatives, this is an ideal role for you.
Key Responsibilities
Integration Architecture & Development
Technical Design: Formulate and define system scope and integration objectives. Design, code, test, and debug complex data flows and subroutines.
API & Middleware: Build and support robust, real-time API integrations using REST, SOAP, and other modern communication protocols. Manage complex file-based and middleware-driven processes.
Systems Optimization: Devises strategies to optimize system capacity, response time, and reliability. Ensure all programs are documented and follow industry best practices for security and error handling.
Lifecycle Management & Leadership
Project Leadership: Serve as a technical lead or project lead for medium-to-large integration efforts. Provide guidance and mentorship to less-experienced developers.
Production Support: Respond to system performance events or failures with urgency. Implement "preventive" code improvements to eliminate the recurrence of technical bottlenecks.
Documentation & Training: Create and maintain comprehensive design documentation. Conduct knowledge-sharing sessions to ensure end-users and support teams maximize the use of the systems you build.
Qualifications & Requirements
Minimum Qualifications
Education: Bachelor's degree in Computer Science, MIS, or a related technical field.
Experience Baseline: Minimum of ten (10) years of total experience in Enterprise Application Integration and software development.
Technical Mastery:
oExtensive experience with Enterprise Middleware and Full-Lifecycle Integration projects.
oExpertise in API frameworks (REST/SOAP), data formats (XML/JSON), and middleware messaging patterns.
oHands-on experience with modern integration platforms and database management.
Preferred Attributes
Proven ability to work in an Agile environment.
Strong business acumen: The ability to translate functional requirements from business stakeholders into technical design specifications.
A "proactive" mindset: Someone who doesn't just code to a ticket but looks at the broader system architecture to identify ways to reduce downtime and improve scalability.
Equal Opportunity Employer / Disabled / Protected Veterans
The Know Your Rights poster is available here:
_EEOC_KnowYourRights6.12.pdf
The pay transparency policy is available here:
_%20English_formattedESQA508c.pdf
For temporary assignments lasting 13 weeks or longer, AllSTEM Connections is pleased to offer major medical, dental, vision, 401k and any statutory sick pay where required.
We are committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation for any part of the employment process, please contact your staffing representative who will reach out to our HR team.
AllSTEM Connections participates in the E-Verify program in certain locations as required by law. Learn more about the E-Verify program.
_Participation_Poster_ES.pdf
We also consider for employment qualified applicants regardless of criminal histories, consistent with legal requirements, including, if applicable, the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance. Pursuant to applicable state and municipal Fair Chance Laws and Ordinances, we will consider for employment-qualified applicants with arrest and conviction records, including, if applicable, the San Francisco Fair Chance Ordinance. For Los Angeles, CA applicants: Qualified applications with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.
Additional Skills
(none specified)
AllSTEM Representative Contact Info
Account Executive:
Nichols
Branch Phone:
Location:
Ontario, CA