Sr Rf Engineer Jobs in Chicago, IL (NOW HIRING)

Sr. SAP Developer
Posting Start Date: 1/23/26
Job Location (Short): Chicago, Illinois, USA, 60631 | Milwaukee, Wisconsin, USA, 53204-2941
Requisition ID: 34956
Onsite or Remote: Onsite Position
Join Komatsu and Be Part of Something Big!
Job Overview
We are seeking a Senior SAP Developer to play a key role in the hands-on development and implementation of SAP solutions as part of a large-scale SAP S/4HANA transformation. This role requires expertise in SAP Fiori/UI5 development, backend ABAP development, and SAP Business Technology Platform (BTP). The ideal candidate will have strong coding skills, experience with modern SAP development frameworks, and a deep understanding of performance optimization, security best practices, and system integrations. As part of this transformation, the Senior SAP Developer will work across SAP S/4HANA, GTS, EWM, SAP MDG, and other SAP modules, delivering high-quality, scalable, and efficient solutions. This role requires a strong foundation in HANA database development, RF framework, SAP Screen Personas, and API-based integrations using OData and RESTful services.
Key Job Responsibilities
• Develop custom SAP applications using Fiori/UI5, ABAP, and SAP BTP frameworks.
• Implement OData/RESTful APIs for seamless communication between SAP and non-SAP systems.
• Optimize HANA database performance using CDS views, AMDP, and code pushdown techniques.
• Develop RF applications for SAP EWM to improve warehouse and logistics operations.
• Customize SAP Screen Personas to enhance the user experience and streamline workflows.
• Design and implement SAP Business Technology Platform (BTP) applications using Cloud Application Programming (CAP) and RESTful Application Programming (RAP).
• Follow SAP development best practices, ensuring scalability, maintainability, and security.
• Use ATC (ABAP Test Cockpit), SQL Planviz, and other tools to measure and improve code quality and performance.
• Apply security best practices in DevOps processes, ensuring compliance with SAP security standards.
• Implement Key User Extensibility and decoupled development to minimize unsupported customizations.
• Develop and manage SAP Application Interface Framework (AIF)-based integrations.
• Work with functional teams to design and implement interfaces between SAP S/4HANA and external systems.
• Troubleshoot and resolve integration and performance-related issues in SAP systems.
• Work closely with SAP functional teams, architects, and business users to translate requirements into technical solutions.
• Support SAP deployments and parallel rollouts, ensuring smooth transition and minimal downtime.
• Provide technical mentorship to junior developers, sharing best practices and development techniques.
Qualifications/Requirements
Required Education/Experience
• Education required - Bachelor's degree in computer science, Information Technology, Engineering, or related field.
• 5+ years of hands-on SAP development experience, with expertise in Fiori/UI5, ABAP, and SAP S/4HANA.
• Strong knowledge of SAP Business Technology Platform (BTP), including CAP & RAP development.
• Proficiency in OData/RESTful API communication and system integrations.
• Hands-on experience in HANA database development, including CDS views, AMDP, and SQL optimizations.
• Experience with SAP RF framework and SAP Screen Personas for improving UI and warehouse operations.
• Strong understanding of DevOps security best practices and code quality tools such as ATC and SQL Planviz.
• Experience designing and managing integrations using SAP Application Interface Framework (AIF).
• Ability to troubleshoot and resolve complex SAP system issues and performance bottlenecks.
• Strong analytical, problem-solving, and communication skills to work in cross-functional teams.
• SAP certifications in relevant areas (e.g., SAP ABAP Certification) are a plus.
• Travel requirements: Up to 10%
Additional Information
Hiring Range
At Komatsu, your base pay is one part of your total compensation package. This role pays $140,000. The actual offer will consider a wide range of factors, including experience and location.
Company Benefits
Komatsu provides an extensive and robust employee benefits package that is designed to enhance the well-being of our employees and family members. We embrace a positive and empowering employee experience with a culture that prides itself on a diverse and inclusive environment.

• Health benefits: Medical, dental, vision, HSA, wellness programs, etc.
• 401k and/or employee savings programs
• Employee time off (vacation and designated holidays)
• Employee and family assistance programs
• Disability benefits
• Life insurance
• Employee learning and development programs

Diversity & Inclusion Commitment
At Komatsu, we come from diverse backgrounds, with unique perspectives, experiences and contributions. We believe that our people are part of our shared purpose. Connected by our core values of ambition, perseverance, collaboration and authenticity, we are committed to continually advancing in our support of diversity and inclusion. United, we are on a journey towards a sustainable future that creates value together.
Company Information
Komatsu develops and supplies technologies, equipment and services for the construction, mining, forklift, industrial and forestry markets. Headquartered in Tokyo, Japan, Komatsu employs more than 64,000 people worldwide, operating in more than 140 countries. For more than a century, the company has been creating value for its customers through manufacturing and technology innovation, partnering with others to empower a sustainable future where people, business and the planet thrive together. Since the company's founding in 1921, Komatsu has been committed to supporting individuals and communities through job training, skills development and giving back. As a Komatsu employee, you will be encouraged to grow alongside our global company, contributing to a more sustainable future for all. If you are looking for a company that values your talent and potential, join Komatsu to be a part of something big and help advance modern society. Learn more at www.komatsu.com.
EEO Statement
Komatsu is an Equal Opportunity Workplace and an Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.