531 api engineer jobs at 285 companies in Addison, IL
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Senior API Integration Engineer
Chicago, Illinois, United States
$153k/yrOnsiteFull Time
Prolaio: Providing a clinical intelligence platform for precision cardiology.
5+ YOEBachelor's degree, 5+ years backend experience (2+ years in integrations), strong Kotlin or Python skills, integration architecture and API expertise, GCP/Docker/Kubernetes experience, observability and security/compliance knowledge (SOC2, HIPAA).
Supernova Technology: Provides cloud-based digital software for securities-based lending.
3+ YOEBachelor's in CS/Engineering, 3+ years software development with API design, experience with Java, Spring Boot, AWS, OAuth/JWT, REST, Git, CI/CD, and testing frameworks.
RESTful Services, OAuth, JWT, Java, Spring Boot, AWS, Git, CI/CD
The HartfordNYSE: HIG: Provides business and personal insurance, group benefits, and investments.
8+ YOE8+ years software engineering/integration/API experience, 3+ years as a technical lead/product owner, RESTful API design, API gateways and security (OAuth, JWT, mTLS), cloud (AWS preferred), SAFe Agile, AI familiarity, strong communication, US work authorization required.
API gateways, OAuth, JWT, mTLS, AWS, SAFe Agile, AI
United States or New York City or Dallas or Austin or Houston or Chicago or Nashville or Miami or Atlanta
$140k-$160k/yrRemoteFull Time
TheGuarantors: Provides lease guarantees and security deposit alternatives for rentals.
3+ YOE3+ years building backend services with Go/Java/Python/C#; strong API design, SQL/PostgreSQL, cloud (AWS/Azure/GCP/OCI) and Terraform experience; professional software engineering experience and strong communication/system design skills.
Zero Hash: Infrastructure platform for crypto, stablecoins, and tokenized assets.
3+ YOE3+ years in solutions/sales/technical engineering supporting brokerage or trading infrastructure; experience with FIX, REST/APIs, SQL and a scripting language (Python/JavaScript/Go); strong communication and troubleshooting skills.
Austin or Chicago or New York City or Salt Lake City or San Francisco or United States
$115k-$175k/yrRemoteFull Time
Gong: AI platform analyzing customer interactions to improve sales performance.
Background in software/data engineering or applied AI, experience shipping AI/LLM tools to production, systems thinking, API and workflow integration experience, strong independent delivery and stakeholder partnership skills.
Elevance HealthNYSE: ELV: Provides health insurance plans and integrated healthcare services.
15+ YOE15+ years software engineering experience with distributed systems, enterprise AI, experience with Python/Java, APIs/microservices, cloud, CI/CD and AI governance; bachelor's in IT/CS/Engineering required.
Washington D.C. or Chicago or New York City or Los Angeles
$133k-$183k/yrHybridFull Time
Kirkland & Ellis: Provides legal services for corporate, litigation, and transactional matters.
8+ YOE8+ years in advanced application support/configuration, experience with e-discovery and litigation platforms, APIs/ETL/data integrations, Microsoft SQL, Linux, REST APIs, PowerShell, emerging AI, strong communication and problem-solving.
Relativity Server/One, Reveal, BrainSpace, AI, APIs, REST APIs, ETL, data pipelines, Microsoft SQL, Linux, PowerShell
Federal SignalNYSE: FSS: Manufacturer of infrastructure maintenance and public safety equipment.
5+ YOEBachelor's in software engineering,5+ years engineering experience,web and mobile service development,proficiency with SQL,C#,C++,JavaScript/.NET,REST APIs,strong communication and design skills.
Farnsworth Group: Nationally recognized architectural, engineering, and surveying firm.
10+ YOEBS in Civil, Mechanical, Chemical, Electrical or Petroleum Engineering; 5-15 years in oil/gas engineering; 3+ years PM experience; knowledge of DOT/API/ANSI/ASME; travel willingness; MS Office proficiency.
ZoomLogi: AI-native platform for managing critical healthcare logistics.
2+ YOE2+ years in customer-facing engineering/implementation roles; strong Python and TypeScript/React skills; experience with APIs, ETL, webhooks, integrations, data modeling, and production debugging; comfortable on-site with customers and frequent travel.
Python, TypeScript, React, Kafka, AWS, Google Slides, APIs, ETL, webhooks
Zachry Group: Provides engineering, construction, and maintenance for industrial facilities.
15+ YOEBachelor's in chemical or mechanical engineering, 15+ years process engineering experience in power/energy/chemical industries, ASME/API knowledge, H&MB and hydraulic analysis, proficient with AspenTech or Thermoflow; PE preferred.
Associated: Provides material handling equipment and warehouse automation solutions.
5+ YOEBachelor's degree required, 5+ years in distribution/material handling, knowledge of AGV/VLM/ASRS, API and PLC controls, Microsoft Office, strong communication and project skills.
API, PLC, Microsoft Excel, Microsoft Outlook, Microsoft PowerPoint, Microsoft Word
Alter Domus: Provides administrative and accounting services for alternative investment funds.
6+ YOE6+ years in platform/infrastructure engineering; expert with cloud platforms (AWS/Azure/GCP), IaC (Terraform/CloudFormation), containers (Docker/Kubernetes), API engineering, multi-tenant design, Python/Go, and observability tools.
T-MobileNASDAQ: TMUS: Provides wireless voice, data, and mobile internet services.
2+ YOE2+ years in telecommunications/IT with hands-on REST API and integration experience, strong technical presentation and communication skills, high school diploma required, STEM bachelor preferred.
San Francisco or Seattle or Chicago or Austin or New York City or London
$132k-$185k/yrHybridFull Time
Writer: Platform for building and deploying enterprise generative AI agents.
5+ YOE5+ years in technical SaaS roles with 3+ years in solutions architecture/technical consulting; deep Python and API experience; enterprise SaaS delivery and strong communication skills.
CboeBATS: CBOE: Operates global market infrastructure and provides tradable financial products.
Senior engineer to design, build, and govern production agentic AI systems using LLM APIs, RAG, Python, CI/CD, and infrastructure-as-code, with strong AI security, observability, and cross-functional leadership skills.
Augment: Building autonomous AI agents to automate logistics operations.
3+ YOE3+ years in solutions/forward-deployed engineering; experience designing and shipping integrations, AI/LLM tooling familiarity, exposure to Python/TypeScript/Go, and strong customer-facing skills.
CB&I: Designs and constructs energy infrastructure storage and terminal solutions.
0+ YOEBachelor's or Master's in civil structural engineering, 0+ years industry experience, understanding of AISC/ASCE/IBC/API/ACI codes, strong communication skills, ability to obtain PE license.
Publicis GroupeEuronext Paris: PUB: Global communications, advertising, and digital transformation holding.
8+ YOE8-10 years of software engineering, expert in Node.js/TypeScript/JavaScript; AWS cloud, REST APIs, microservices; CI/CD; AI exposure; strong problem solving; team mentoring.