Littelfuse (NASDAQ: LFUS) is a diversified industrial technology manufacturing company shaping solutions for the safe and efficient transfer of electrical energy. Headquartered in Chicago, Illinois, USA, we serve customers across industrial, transportation, and electronics markets worldwide. With approximately 16,000 employees we design and manufacture innovative technologies that support electrification, energy efficiency, and advanced automation. Our global reach is matched by a culture that empowers innovation and long-term growth. Guided by our principles We Care, We Succeed With Our Customers, and We Own the Outcome, we work collaboratively, think boldly, and deliver solutions that move industries forward.

As a Full-Stack Senior Software Developer, you will be responsible for implementing designs, and developing, testing, and maintaining web-based application systems. You will troubleshoot and solve complex software issues, research technical problems, and make suggestions for improvements in our web applications. You will analyze and integrate new web technologies with existing applications to improve design, reliability, and functionality.

About Your Job;
• Designs, develops, and modifies software programs to meet end-user and
business requirements across.
• Researches technical problems and suggests enhancements for web
applications, including performance tuning, resilience, and observability.
• Optimizes programs by conducting systems analysis, building
specifications/guidelines for use, and recommending changes to standards,
policies, and procedures.
• Analyzes and integrates new web technologies with existing applications to

improve reliability and user experience.

Key Responsibilities:
• Full-stack delivery across .NET (C#, MVC) back end and Next.js/React front end; build RESTful/JSON APIs and UI components with strong attention to

performance and accessibility.
• Sitecore 10 engineering - content models, pipelines, configurations, packaging; partner with content and marketing teams on publishing workflows.
• AWS Cloud: design, implement, and operate workloads using Lambda, SNS,
SQS, S3, API Gateway, and VPC networking; apply IAM least-privilege and logging/monitoring via CloudWatch.
• API integrations: design, test and consume internal/external APIs; validate with Postman; .
• Containers & Dev Environments: build and run services in Docker (Kubernetes
experience a plus); standardize local dev and environment parity.

• Collaboration: Daily stand-ups, sprint plannings, code reviews, and frequent
pairing for KT.

About You:

• 5+ years professional software development (or equivalent) with .NET (C#,
MVC) and JavaScript/TypeScript stacks; Next.js/React experience.
• AWS Cloud experience with Lambda, SNS, SQS, S3, API Gateway, VPC.
• API integration experience (design/consumption of REST APIs), strong
Postman skills for building collections and tests.
• Docker for local and pipeline builds; solid Git expertise (branching strategies, pull requests, code reviews).

• Advanced Excel (formulas & data analysis) for ad-hoc data validation, release
readiness checks, and operational reporting.
• Demonstrated strength in troubleshooting complex, cross-system issues (logs, metrics, traces); clear written documentation.
• Experience working in Agile teams and with Jira (or equivalent ticketing system).
• English proficiency with strong verbal and written communication.

• Bachelor’s or university degree in Computer Science, Engineering, or related
field (or equivalent experience).
• Advanced problem-solving skills; able to decompose ambiguous problems into deliverable iterations.

Nice to Have
• Sitecore 10 hands-on experience is a plus. Covering solution structure, content templates, packaging, and deployments/rollbacks.
• Digital assets management system, administration, or integration experience.
• Product information management system.
• Experience with observability (CloudWatch dashboards/alarms, log queries,
synthetic checks).
• Familiarity with content operations and asset pipelines (taxonomy, metadata
governance).

Highly organized with strong attention to detail; able to create repeatable
playbooks and KT assets.
• High level of verbal and written communication; comfortable collaborating with cross-functional partners (content, marketing, operations).
• Ownership mindset, continuous improvement orientation, and commitment to
secure coding practices.

𝘞𝘦 𝘢𝘳𝘦 𝘢𝘯 𝘦𝘲𝘶𝘢𝘭 𝘰𝘱𝘱𝘰𝘳𝘵𝘶𝘯𝘪𝘵𝘺 𝘦𝘮𝘱𝘭𝘰𝘺𝘦𝘳 𝘵𝘩𝘢𝘵 𝘵𝘢𝘬𝘦𝘴 𝘱𝘳𝘪𝘥𝘦 𝘪𝘯 𝘨𝘪𝘷𝘪𝘯𝘨 𝘦𝘷𝘦𝘳𝘺 𝘢𝘴𝘴𝘰𝘤𝘪𝘢𝘵𝘦 𝘵𝘩𝘦 𝘮𝘦𝘢𝘯𝘴 𝘢𝘯𝘥 𝘤𝘰𝘶𝘳𝘢𝘨𝘦 𝘵𝘰 𝘮𝘢𝘬𝘦 𝘢 𝘥𝘪𝘧𝘧𝘦𝘳𝘦𝘯𝘤𝘦 — 𝘦𝘷𝘦𝘳𝘺𝘸𝘩𝘦𝘳𝘦, 𝘦𝘷𝘦𝘳𝘺 𝘥𝘢𝘺.

At Littelfuse, we support employee growth and development. Guided by our culture principles, our teams work together to deliver value for customers and make a positive impact in the communities where we operate. We are an equal opportunity employer committed to fostering an inclusive workplace where everyone has the opportunity to grow and contribute. We offer competitive compensation and benefits, performance-based incentives, flexible work arrangements, and development opportunities.