145 api engineer jobs at 90 companies in Salem, WI

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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
U.S. Bank
U.S. BankNYSE: USB: Provider of personal, business, and institutional financial services.
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
1w
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Automation Engineer
Milwaukee, Wisconsin, United States
$85k-$90k/yr OnsiteFull Time
Milwaukee Bucks
Milwaukee Bucks: Operates a professional basketball team and multi-purpose entertainment venue.
5+ YOEBachelor's or equivalent experience,5+ years software development and API experience,Python/C/C++ preferred,Anthropic Claude preferred,Agile and project management experience,ability to travel and work flexible hours.
Anthropic Claude, Python, C, C++, APIs, Agile Framework
3w
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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
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Controls Engineer
Menomonee Falls, Wisconsin, United States
OnsiteFull Time
Milwaukee Tool
Milwaukee ToolHong Kong Stock Exchange: 0669: Manufacturer of professional-grade power tools and jobsite solutions.
2+ YOEBachelor's in engineering, 2+ years in machine controls/automation, PLC/HMI programming, Python, industrial networking and data systems, project leadership, and ability to support equipment commissioning and supplier integration.
PLCs, HMIs, Python, OPC-UA, MQTT, SQL, APIs, data historians, edge devices, robots, vision, safety devices, laser systems, drives, Microsoft Office, Microsoft Project, Microsoft Power BI, Microsoft Visio
4d
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Process Safety Engineer II
Northlake, Illinois, United States
$105k-$120k/yr OnsiteFull Time
Sun Chemical
Sun ChemicalTokyo Stock Exchange: 4631: Producer of printing inks, coatings, and organic pigments.
5+ YOEBachelor's in chemical engineering,5+ years process/project engineering in chemical industry,strong PSM experience,knowledge of NFPA and API RP 520/521,AutoCAD and P&IDs;excellent communication and collaboration skills.
NFPA, API RP 520/521, AutoCAD, P&IDs, SAP, ICC
2mo
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Mechanical Engineer - Modular Skid Systems
Milwaukee, Wisconsin, United States
OnsiteFull Time
AGI Fabricators
AGI Fabricators: Specializes in custom metal fabrication and modular industrial systems.
5+ YOEBachelor's in Mechanical Engineering, P.E. license, 5+ years relevant experience with modular skid systems, proficiency with 3D CAD, knowledge of ASME/API/ASTM codes, strong communication and project skills.
3D CAD
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Mechanical Engineer - Modular Skid Systems
Milwaukee, Wisconsin, United States
OnsiteFull Time
TOTAL Mechanical
TOTAL Mechanical: Full-service mechanical, HVAC, plumbing, and fire protection contractor.
5+ YOEBachelor's in Mechanical Engineering, PE license, 5+ years industry experience with modular skid or packaged systems, proficiency with 3D CAD, knowledge of ASME/API/ASTM, strong communication and project management skills.
3D CAD
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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#
3w
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Principal Peptide Process Engineer, Research Scientist II
North Chicago, Illinois, United States
$142k-$269k/yr OnsiteFull Time
AbbVie
AbbVieNYSE: ABBV: Develops and sells innovative pharmaceutical and biopharmaceutical medicines.
Degree in chemical engineering or related field with significant industry experience (varies by degree), expertise in peptide/API process development, technical leadership, and cross-functional collaboration.
4w
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Senior Integrations Engineer
Delafield, Wisconsin, United States
OnsiteFull Time
Evans Transportation Services
Evans Transportation Services: Provides third-party logistics and end-to-end transportation management solutions.
Hands-on experience implementing enterprise API and event-driven integrations, knowledge of JSON/XML/data mapping, OAuth/OpenID Connect, AWS, and ability to lead technical discovery and communicate with stakeholders.
REST, JSON, XML, OAuth, OpenID Connect, Amazon Web Services (AWS), Boomi, MuleSoft, EDI, .NET
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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
2w
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Systems Engineer Lead
Waukegan, Illinois, United States
OnsiteFull Time
Henry Broch & Co
Henry Broch & Co: Provides food ingredient processing, custom blending, and contract packaging services.
Lead ERP implementation and support, configure integrations and middleware, administer Linux and databases, write SQL, mentor technical staff; bachelor's in related field preferred.
SQL, MySQL, Microsoft SQL Server, Systemd, Cron, OpenSSH, Common Lisp, Python, Go, Power BI, ERP, APIs, middleware, AI-assisted coding tools
3d
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Senior AI/ML Engineer
Glenview, Illinois, United States
$162k-$203k/yr HybridFull Time
Wespath
Wespath: Provides retirement and health benefits for faith-based organizations.
7+ YOERequires 7+ years of software development experience, including 2+ years delivering enterprise AI solutions; Python, AI/ML, LLM APIs, prompt engineering, RAG, embeddings, vector search, and production software experience.
Python, GitHub Copilot, Claude Code, Azure AI Foundry, Azure AI Search, Copilot Studio, Amazon Bedrock, Amazon SageMaker, Amazon Q, OpenSearch, Pinecone, pgvector, SQL Server, Oracle, Microsoft Fabric, Microsoft SharePoint, AWS Lambda, Azure Functions, RAG, LLM APIs, APIs, embeddings, vector search, Microsoft Azure, AWS
1d
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Software Engineer
Schaumburg, Illinois, United States
$73k-$130k/yr RemoteFull Time
UnitedHealth Group
UnitedHealth GroupNYSE: UNH: Provides health insurance and technology-enabled health care services.
3+ YOEBachelor's degree in computer science or engineering; 3+ years full-lifecycle software development; 2+ years HTMX; 1+ year Go building services, APIs, and web applications.
Go, HTMX, Microsoft .NET, React, Tailwind, Microsoft Azure, GitHub Copilot, Microsoft 365, Terraform, Helm, Flux, Kubernetes, Splunk, Grafana, Prometheus, Dynatrace, Application Insights, OWASP, HIPAA, MS SQL, PostgreSQL
1w
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Senior Palantir Engineer
Austin or Charlotte or Naples or Hudson or Milwaukee
OnsiteFull Time
CliftonLarsonAllen
CliftonLarsonAllen: Professional services firm providing audit, tax, and consulting services.
4+ YOE4+ years relevant experience, Bachelor’s degree, Palantir Foundry experience preferred, proficiency with TypeScript, JavaScript, Python, SQL, APIs, Git, CI/CD, and agentic/LLM development.
Palantir Foundry, TypeScript, JavaScript, Python, SQL, APIs, Git, CI/CD, MCP, LLMs
1mo
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Integration Developer - Integrations, Data & AI Solutions
Pewaukee, Wisconsin, United States
HybridFull Time
Boelter
Boelter: Designs commercial kitchens and supplies professional foodservice equipment.
3+ YOE3+ years software/integration or data engineering experience; hands-on enterprise integrations, APIs, databases, middleware, EDI; familiarity with SAP, Microsoft Fabric, Power BI, SQL, ETL/ELT; strong communication and AI curiosity.
SAP, Microsoft Fabric, Cleo Integration Cloud, Microsoft Power BI, SQL, ETL/ELT, EDI, APIs
2mo
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Senior DevOps Engineer
Milwaukee, Wisconsin, United States
OnsiteFull Time
Fiserv
FiservNew York Stock Exchange: FI: Provides financial technology solutions for merchants and financial institutions.
4+ YOEBachelor's or Master’s in CS/CE; 2-4 years software engineering; cloud infra (AWS/Azure/GCP); Kubernetes, Docker, Terraform; scripting; API testing; PostgreSQL; observability.
AWS, Azure, GCP, Traefik, Confluent, Kafka, RabbitMQ, Kubernetes, Helm, ArgoCD, Argo Workflows, Docker, HashiCorp Vault, Terraform, Rundeck, GitLab, Python, Shell Scripting, PowerShell, Swagger, Postman, PostgreSQL, pgAdmin, Datadog, OpenTelemetry, Prometheus
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Senior AI Engineer
Abbott Park or United States
$99k-$199k/yr RemoteFull Time
Abbott
AbbottNYSE: ABT: Provides medical devices, diagnostics, and science-based nutritional products.
8+ YOEBachelor's in CS/Engineering/Mathematics (or related) and 8+ years (Master's +6+), strong applied AI/ML experience, Go backend engineering, cloud-native services, distributed systems, REST APIs, SQL/PostgreSQL, Linux, CI/CD, and strong communication.
Go, RESTful APIs, SQL Server, PostgreSQL, Kubernetes, Docker, Terraform, Linux, CI/CD, MLOps, message queues, vector databases
2w
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Software Engineer
Wauwatosa or Bellevue or Grand Rapids or Atlanta
$77k-$105k/yr OnsiteFull Time
KION Group
KION GroupXETRA: KGX: Provides industrial trucks and automated supply chain solutions globally.
2+ YOEBachelor's degree in CS or Software Engineering, minimum 2 years professional software development, proficiency in C/C++/C#, version control (Azure TFS or Git), RESTful APIs, Agile methodologies, strong communication and problem-solving.
C, C++, C#, Azure TFS, Git, RESTful API
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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