115 api engineer jobs at 73 companies in DeKalb, IL

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
3mo
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Integration Engineer (EDI/API)
Chicago or Marietta or Naperville
$80k-$95k/yr OnsiteFull Time
RXO
RXONYSE: RXO: Provide asset-light transportation and freight brokerage solutions.
1+ YOEBachelor's in IT/MIS/CS; 1 year integrating roles; experience with EDI and API platforms (Apigee, Boomi, IBM Sterling File Gateway, MQ); data transformation (XML, XPATH, XSLT); AS2, SFTP, JMS; cloud (Google Cloud); IPaaS (Boomi, MuleSoft); Sterling Integrator Map Editor preferred.
EDI, API, Apigee, Boomi, IBM Sterling File Gateway, MQ, XML, XPATH, XSLT, AS2, SFTP, JMS, iPaaS, MuleSoft, Google Cloud, Sterling Integrator Map Editor
3mo
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Senior Associate, Software Application and API Developer (St. Charles, Illinois) (St. Charles, IL, US)
St. Charles, Illinois, United States
$153k-$212k/yr HybridFull Time
New York Life
New York Life: Provides life insurance, retirement income, and investment solutions.
7+ YOEBachelor's degree in CS/EE/Math or related field plus 7 years in software development; experience with .NET, REST/SOAP APIs, microservices; VB.NET, ASP.NET, C#, JavaScript, SQL Server; Excel/VBA actuarial models; hybrid work in St. Charles, IL.
VB.NET, ASP.NET, C#, JavaScript, XML, HTML, CSS, REST, SOAP, Swagger, Postman, SOAP UI, SQL Server, .NET
1mo
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Senior QA Automation Engineer
Deer Park, Illinois, United States
$80k-$125k/yr OnsiteFull Time
PDF Solutions
PDF SolutionsNASDAQ: PDFS: Data analytics and engineering solutions for semiconductor manufacturing.
6+ YOEBachelors in CS/Engineering, 6+ years QA automation experience with Selenium/Python/Java, API/backend testing, ML application validation, cloud-native/Docker/Kubernetes, CI/CD, and Agile experience.
Python, Java, Selenium, API, Docker, Kubernetes, Helm, CI/CD, SQLMap, OWASP ZAP, Prometheus, Grafana, InfluxDB
1mo
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Sr. Engineer - Oil & Gas
Lisle, Illinois, United States
$90k-$140k/yr OnsiteFull Time
Farnsworth Group
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.
Word, Excel, PowerPoint, MS Project
1mo
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Sr Engineer Process
Downers Grove, Illinois, United States
$148k-$170k/yr OnsiteFull Time
Zachry Group
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.
AspenTech, Thermoflow
3d
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Application Engineer - Automation
Hanover Park or Indianapolis
$75k/yr FieldFull Time
Associated
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
2mo
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Lead Process Engineer
Lisle, Illinois, United States
$140k-$185k/yr HybridFull Time
Brindley Engineering
Brindley Engineering: Provides engineering and technical services for industrial facilities.
10+ YOELead process design and evaluations for refinery/chemical units; 10+ yrs; BS in Chemical Eng; PE preferred; strong PFD/P&ID, API/ASME; mentoring.
PFD, P&ID, API standards, ASME codes, heat and mass balances, relief device sizing
3mo
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Analysis Engineer (Structural)
Plainfield, Illinois, United States
OnsiteFull Time
CB&I
CB&I: Designs and constructs energy infrastructure storage and terminal solutions.
2+ YOE2+ years of relevant experience; BS in Civil, Structural or Mechanical Engineering; EIT or pursuing PE; experience with plate structures; strong knowledge of AISC, ASCE 7, IBC; familiarity with ASME Section VIII, API 620/650; PE license preferred.
Finite Element Analysis, Engineering software
1mo
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3D CAD Automation Engineer
Golden or Shawnee or Vernon Hills or Fort Lauderdale or Trussville
$80k-$100k/yr RemoteFull Time
Parkson
Parkson: Provides equipment and solutions for water and wastewater treatment.
Experience automating Autodesk Inventor using Inventor API/iLogic; proficiency with VBA/VB.NET or C#; strong parametric modeling and drawings; bachelor’s in engineering or related field or equivalent
Autodesk Inventor API, iLogic, VBA, VB.NET, C#
1w
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Software Development Engineer III
Spartanburg or Irving or Shreveport or Oak Brook
$100k-$150k/yr HybridFull Time
RedSail Technologies
RedSail Technologies: Integrated pharmacy management software and health technology solutions.
5+ YOEBachelor's degree in Computer Science or equivalent, 5+ years software engineering experience (including 1 year at senior level), expertise in microservices, API and database design, unit/integration testing, JavaScript/Angular; C#/.NET, Postgres, Mongo, Kafka preferred.
JavaScript, Angular, C#, .NET, PostgresDB, Mongo DB, Kafka, Microsoft Teams
1mo
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Digital Solutions Engineer/Client Integrations Engineer
West Chicago, Illinois, United States
$73k-$101k/yr OnsiteFull Time
Publicis Groupe
Publicis GroupeEuronext Paris: PUB: Global advertising and digital transformation agency holding.
4+ YOE4+ years hands‑on experience with Adobe platforms (AEM, Workfront); strong integrations and automation experience (Workfront Fusion, Adobe APIs); production troubleshooting and configuration skills required.
Adobe Experience Manager (AEM), Adobe Workfront, Adobe Journey Optimizer (AJO), Adobe Campaign, Workfront Fusion, Adobe APIs, REST, Adobe I/O, Adobe Experience Platform (AEP), Databricks, Snowflake
1mo
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Visual Inspector - API 510/570/653
Joliet, Illinois, United States
$38-$61/hr OnsiteFull Time
Acuren
Acuren: Provider of inspection, NDE, and industrial asset integrity services.
2+ YOEAPI 510/570 certification required; 5–10 years' experience or 2+ years on-site; API 653 or CWI a plus; in-depth knowledge of API 510/570 and ASME; experience supporting petrochemical facility engineers.
2w
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Engineer-Systems Integr
Aurora, Illinois, United States
$105k-$157k/yr OnsiteFull Time
OSI Group: A global food provider partnering with foodservice and retail brands to deliver concept-to-table solutions.
Design and implement integrations across shop-floor sensors, MES, SCADA, and ERP; production-grade Python, Ignition/SCADA, MQTT, Power BI/SQL, and SAP S/4HANA experience preferred; 5+ years experience preferred.
Python, Ignition, Perspective, SCADA, MES, SafetyChain, MQTT, Banner DXM/DX80, Microsoft Power BI, SQL, Snowflake, SAP S/4HANA, REST API, ERP
1w
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.NET Developer - QMS
Aurora, Illinois, United States
$70k-$105k/yr OnsiteFull Time
QT9 Software
QT9 Software: Cloud-based QMS and ERP software for regulated industries.
1+ YOEMust have .NET experience with C#, ASP.NET MVC/Web Forms, Web API, and SQL Server; Bachelor's degree in Computer Science/Engineering; 1+ years professional development experience; strong OOP and problem-solving skills.
.NET, C#, ASP.NET MVC, ASP.NET Web Forms, Web API, SQL Server
2w
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Senior Software Engineer
Downers Grove, Illinois, United States
$110k-$130k/yr HybridFull Time
Roadrunner
Roadrunner: Provides nationwide long-haul less-than-truckload freight transportation services.
5+ YOE5+ years with Microsoft stack (.NET 6/7/8+, ASP.NET Core, Web API, EF Core), SQL Server, Azure services, CI/CD and Git; bachelor\u0002s degree or equivalent experience; strong API, security, testing, and mentoring skills.
.NET, .NET 6, .NET 7, .NET 8, ASP.NET Core, Web API, Entity Framework Core, ASP.NET MVC, Angular, React, TypeScript, JavaScript, SQL Server, Microsoft Azure, App Service, Functions, Azure SQL, Application Insights, CI/CD, Git, Azure DevOps, GitHub Actions
3w
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Lead Software Engineer
Downers Grove, Illinois, United States
$120k-$130k/yr HybridFull Time
Roadrunner
Roadrunner: Long-haul less-than-truckload freight transportation and logistics services.
8+ YOE8+ years Microsoft-stack software development, expertise in .NET (6/7/8), ASP.NET Core/MVC, Web API, EF Core, Azure services, Microsoft SQL Server, JavaScript/TypeScript and modern front-end (Angular/React); experience with CI/CD, observability, secure coding, and leading engineering delivery.
.NET 6/7/8, ASP.NET Core, Web API, Entity Framework Core, ASP.NET MVC, Angular, React, JavaScript, TypeScript, HTML5, CSS, Microsoft SQL Server, Azure, App Service, Functions, Azure SQL, Storage, Application Insights, Azure DevOps, GitHub Actions, CI/CD, API gateways
3mo
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Software Engineer
Westchester, Illinois, United States
$79k-$99k/yr HybridFull Time
Ritchie Bros.
Ritchie Bros.NYSE: RBA: Conducts global auctions for heavy equipment and industrial assets.
5+ YOE5+ years .NET development in multi-team environment; .NET, ASP.NET, C#, MVC, Web API, SQL Server/MySQL; HTML5/CSS/JS; Agile; unit & automation testing; fault-tolerant, scalable software.
.NET, ASP.NET, C#, MVC, Web API, SQL Server, MySQL, HTML5, CSS, JavaScript, jQuery, Bootstrap, JSON
1mo
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Sr. Software Engineer
Oak Brook, Illinois, United States
OnsiteFull Time
The Joint Commission
The Joint Commission: Accredits and certifies US healthcare organizations to ensure quality.
5+ YOEBS in CS or related field or equivalent; 5+ yrs distributed multi-tier software development; strong comms; lead experience; proficient in C#/NET, HTML/JS; SQL Server; API development; Agile; OOP/SOLID.
C#/.NET, HTML, JavaScript, jQuery, Angular 2+, Microsoft SQL Server, Entity Framework, API development, Git, TFVC, Visual Studio, Azure, AWS, Azure DevOps, N Telerik Kendo UI, NativeScript, Xamarin, Windows UWP, OOP, SOLID
4w
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Lead Software Engineer
Chicago, Illinois, United States
$154k-$164k/yr HybridFull Time
Alliant Credit Union
Alliant Credit Union: Provides digital banking, consumer loans, and mortgage lending services.
8+ YOEBachelor's in IT/CS or related, 8 years related experience, strong C#, .NET (Framework/Core), MVC, Azure DevOps, REST/Web API, Entity Framework Core, Symitar/Episys experience, Splunk/Log Insight/Grafana familiarity.
C#, Microsoft .NET Framework, .NET Core, MVC, Microsoft Azure DevOps, REST, Web API, Entity Framework Core, Symitar API (SymXchange / SymConnect), Episys, PowerOn, RepGen, Splunk, Log Insight, Grafana
3d
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Lead Data Engineer
Deerfield, Illinois, United States
$161k-$193k/yr RemoteFull Time
Fortune Brands Innovations
Fortune Brands InnovationsNYSE: FBIN: Manufactures and sells home, security, and digital building products.
5+ YOEBachelor's in CS/Information Systems or related and 5+ years in data engineering; experience with ETL/ELT, SQL, Python, cloud data warehouses, dbt, Git, CI/CD, APIs and ERP migrations.
Snowflake, Git, SQL, Python, Amazon Redshift, Google BigQuery, dbt, CI/CD, Oracle, SAP, Unix