576 api engineer jobs at 299 companies in Matteson, IL
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Software Engineer, API
Chicago, Illinois, United States
$108k-$110k/yr HybridFull Time
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
4d
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Senior Manager, API and Middleware Engineering
Chicago, Illinois, United States
$170k-$182k/yr OnsiteFull Time
8+ YOEBachelor's degree and 8+ years experience designing and leading enterprise API, middleware, and integration platforms with MuleSoft; strong vendor management, production support, API governance, and cross-team collaboration skills.
MuleSoft Anypoint Platform, Salesforce, CI/CD, DevOps
1mo
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Senior Software Engineer (Hogan API)
Hopkins or Atlanta or Chicago or Charlotte or Englewood or Brookfield or Irving
$120k-$141k/yr HybridFull Time
5+ YOEBachelor's degree or equivalent and 5+ years relevant experience. Experience with mainframe/Hogan development (COBOL, JCL, CICS), APIs, system design, testing, security, and cross-team collaboration; Scrum familiarity.
Hogan COBOL, JCL, CICS, JSON, Splunk, IMS Database, GitLab, IDz/RDz (IBM Developer for zOS), Jira
1mo
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Senior Software Engineer - Customer Integrations (API)
United States or New York City or Dallas or Austin or Houston or Chicago or Nashville or Miami or Atlanta
$140k-$160k/yr RemoteFull Time
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.
Go, Java, Python, C#, SQL, PostgreSQL, AWS, Azure, GCP, OCI, Terraform
4w
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Senior Solutions Engineer
Chicago or New York or United States or Canada
RemoteFull Time
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.
APIs, FIX, REST, SQL, Python, JavaScript, Go
1w
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GTM AI Engineer
Austin or Chicago or New York City or Salt Lake City or San Francisco or United States
$115k-$175k/yr RemoteFull Time
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.
Gong, Salesforce, APIs, agent frameworks, workflow orchestration, LLM
2mo
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Senior Application Engineer I
Washington D.C. or Chicago or New York City or Los Angeles
$133k-$183k/yr HybridFull Time
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
3w
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Project Engineer (1976)
Lake Charles or Lemont or Corpus Christi
OnsiteFull Time
4+ YOEBachelor's degree in engineering and 4 years of engineering experience required. Requires design experience, communication skills, and Microsoft Office tools; API 653, SAP, and pipeline standards experience preferred.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Project, SAP, Project System, Plant Maintenance, Materials Management, Above Ground Storage Tank Inspection Program (ASTIP), Integrity Management (IM)
1mo
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Senior Engineer - Software
University Park, Illinois, United States
$78k-$134k/yr OnsiteFull Time
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.
SQL, JavaScript, Angular, React, JQuery, Vue, C#, C++, ASP, .NET Core Framework, REST APIs, Atlassian, SIP, SMS, SMTP, SNMP, HTTPS, RS232, RS485, VoIP, SCADA
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Sr. Engineer - Oil & Gas
Lisle, Illinois, United States
$90k-$140k/yr OnsiteFull Time
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.
Word, Excel, PowerPoint, MS Project
2mo
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Founding Forward Deployed Engineer (FDE)
San Francisco or Chicago
$150k-$200k/yr HybridFull Time
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
3d
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Sr Reliability Engineer
Kankakee, Illinois, United States
$108k-$128k/yr OnsiteFull Time
7+ YOELead equipment reliability and maintenance strategy in regulated manufacturing; 7+ years maintenance/engineering experience; CMMS and predictive maintenance expertise; bachelor\u0002s degree in engineering; CMRP/CRE/API certifications preferred.
Power BI, CMMS, Maximo, SAP, TrackWise Digital
1mo
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Sr Engineer Process
Downers Grove, Illinois, United States
$148k-$170k/yr OnsiteFull Time
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.
AspenTech, Thermoflow
1d
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Structural Engineer III
Chicago, Illinois, United States
$99k-$142k/yr OnsiteFull Time
5+ YOEBachelor of Science in civil, structural, or related engineering; 5+ years of utility structural engineering experience; design-team leadership; professional engineer registration preferred; proficiency with engineering design software.
Risa3D, Risa Foundation, Mathcad, Mat3D, SAP2000, STAAD, AutoCAD, LPile, Microsoft Office, Microsoft Excel, ACI, AISC, ASCE, ASTM, ANSI, API, IBC, OSHA, PIP
3w
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Application Engineer - Automation
Hanover Park or Indianapolis
$75k/yr FieldFull Time
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
23h
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Forward Deployed Engineer
Morrisville or Chicago or Raleigh or California or Colorado or Connecticut or District of Columbia or Hawaii or Illinois or Maryland or Massachusetts or Minnesota or Nevada or New Jersey or New York or Oregon or Rhode Island or Washington
$180k-$220k/yr HybridFull Time
5+ YOERequires 5+ years in software engineering, solutions engineering, applied AI, or related technical work; experience deploying AI solutions, LLMs, retrieval architectures, agents, enterprise APIs, and workflow platforms.
Microsoft Copilot Studio, Azure OpenAI, Microsoft 365, Microsoft Power Platform, ServiceNow, Python, JavaScript
2w
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Team Solutions Engineer - Enterprise
Downers Grove or Frisco
$84k-$152k/yr OnsiteFull Time
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.
REST API, Postman
1mo
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Platform Engineer (Chicago, US)
Chicago, Illinois, United States
$88k-$145k/yr HybridFull Time
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.
AWS, Azure, GCP, Terraform, CloudFormation, Docker, Kubernetes, Python, Go, Datadog, Prometheus, Grafana, CloudWatch, Snowflake, Snowflake Data Sharing, Databricks, Kafka, Kinesis, SFTP, OAuth2, JWT
1w
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AI deployment engineer (West)
San Francisco or Seattle or Chicago or Austin or New York City or London
$132k-$185k/yr HybridFull Time
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.
Python, APIs, LLMs, Knowledge Graph
1mo
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Sr. Automation Engineer
Chicago or Kansas City
$119k-$169k/yr OnsiteFull Time
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.
LLM APIs, RAG, Python, CI/CD, infrastructure-as-code
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