Data engineer Jobs in Naperville, IL

Your Job We are seeking an experienced AI Data Analytics Engineer to accelerate data-driven engineering across Molex's Optical Connectivity product portfolio.
This hands-on role blends agentic AI workflow development, data analytics, database engineering, and full-stack application development to deliver robust databases, ETL pipelines, APIs, dashboards, and AI-agent-powered services that convert test and operational data into actionable insights.
The ideal candidate is fluent in modern AI coding agents (e.g., OpenAI Codex, Claude Code, GitHub Copilot) and skilled at designing autonomous and semi-autonomous agentic workflows that accelerate software delivery, testing, and engineering decision-making. Our Team Molex's Optical Connectivity Group is at the forefront of designing and delivering cutting-edge optical solutions that power data centers, telecom infrastructure, and next-gen computing.
As part of Koch Industries, Molex fosters a culture of innovation, collaboration, and transformative technology development across global markets. This position will work onsite 5 days a week in Lisle, IL. What You Will Do * Translate engineering problems into data-driven applications and services that scale and integrate with internal systems. * Design, implement, and maintain relational and analytical databases (logical/physical schema design, indexing, partitioning, backups, migrations). * Build reliable ETL/ELT pipelines and data ingestion systems for heterogeneous enterprise sources (MES, ERP/SAP, CRM, warranty/field records). * Develop backend services and APIs (REST/gRPC) to serve analytics, AI agent outputs, and application data to dashboards, lab tools, and internal apps. * Implement frontend dashboards and interactive UIs (Power BI/Tableau, Dash/React) to present insights and enable engineer workflows. * Design, build, and orchestrate agentic AI workflows - multi-step, tool-using AI agents that automate engineering tasks such as code generation, code review, data analysis, testing, and reporting; leverage AI coding agents (OpenAI Codex, Claude Code) to accelerate development velocity. * Ensure application reliability, observability, security (logging, metrics, RBAC, encryption at rest/in-flight) and data governance. * Implement CI/CD for code, database schema migrations, and agentic workflow deployment; enforce automated testing and rollback strategies. * Optimize query performance and schema for analytics workloads and high-ingest scenarios. * Produce architecture docs, data contracts, and operational runbooks; enable knowledge transfer and training for stakeholders. Who You Are (Basic Qualifications) * BS or MS in Computer Science, Data Science, Software Engineering, Applied Math, or equivalent experience. * 2+ years of experience building production software, data systems, or analytics platforms (backend, DB, or data engineering). * Strong Python skills; experience with APIs (FastAPI, Flask) and web services. * Advanced SQL expertise and relational database design experience (PostgreSQL, MySQL, SQL Server). * Experience with data warehousing / columnar stores (BigQuery, Redshift, Snowflake) or time-series DBs (TimescaleDB, InfluxDB). * Experience with ETL/ELT orchestration (Airflow, dbt, Spark) and incremental load strategies. * Hands-on experience with AI coding agents and agentic development tools (e.g., OpenAI Codex, Claude Code, GitHub Copilot) for automated code generation, refactoring, and testing. * Experience designing and orchestrating agentic AI workflows (multi-step reasoning, tool/function calling, retrieval-augmented generation) using frameworks such as LangChain, LangGraph, AutoGen, or CrewAI. * Experience with containerization and orchestration (Docker, Kubernetes) and CI/CD tools (GitHub Actions, Jenkins). * Experience building dashboards and visualizations (Power BI, Tableau, Dash, React). * Strong software engineering practices: unit/integration testing, code reviews, CI, and documentation. * Excellent communication and cross-functional collaboration skills. What Will Put You Ahead * Experience with message brokers/streaming (Kafka, RabbitMQ) for event-driven agentic pipelines. * Experience with prompt engineering, agent evaluation/observability tooling (e.g., LangSmith, Helicone), and guardrails for safe, reliable autonomous agent behavior. * Contributions to open-source agentic frameworks or personal/professional projects showcasing autonomous coding agents, agent-to-agent orchestration, or AI-driven developer tooling. * Experience with database migration tooling and schema versioning (Flyway, Alembic). * Familiarity with cloud-native data architectures (AWS/GCP/Azure) and security/compliance practices for proprietary data. * Experience building custom AI agent tools and integrations (e.g., MCP servers, plugin/extension architectures) to connect agentic workflows with enterprise systems (SAP/xRPM, Power Automate, Salesforce). For this role, we anticipate paying $90,000 - $110,000 per year.
This role is eligible for variable pay, issued as a monetary bonus or in another form. At Koch companies, we are entrepreneurs.
This means we openly challenge the status quo, find new ways to create value and get rewarded for our individual contributions.
Any compensation range provided for a role is an estimate determined by available market data.
The actual amount may be higher or lower than the range provided considering each candidate's knowledge, skills, abilities, and geographic location.
If you have questions, please speak to your recruiter about the flexibility and detail of our compensation philosophy. Hiring Philosophy All Koch companies value diversity of thought, perspectives, aptitudes, experiences, and backgrounds.
We are Military Ready and Second Chance employers.
Learn more about our hiring philosophy here . Who We Are As a Koch company, Molex is a leading supplier of connectors and interconnect components, driving innovation in electronics and supporting industries from automotive to health care and consumer to data communications.
The thousands of innovators who work for Molex have made us a global electronics leader.
Our experienced people, groundbreaking products and leading-edge technologies help us deliver a wider array of solutions to more markets than ever before. At Koch, employees are empowered to do what they do best to make life better.
Learn how our business philosophy helps employees unleash their potential while creating value for themselves and the company. Our Benefits Our goal is for each employee, and their families, to live fulfilling and healthy lives.
We provide essential resources and support to build and maintain physical, financial, and emotional strength - focusing on overall wellbeing so you can focus on what matters most.
Our benefits plan includes - medical, dental, vision, flexible spending and health savings accounts, life insurance, ADD, disability, retirement, paid vacation/time off, educational assistance, and may also include infertility assistance, paid parental leave and adoption assistance.
Specific eligibility criteria is set by the applicable Summary Plan Description, policy or guideline and benefits may vary by geographic region.
If you have questions on what benefits apply to you, please speak to your recruiter. Additionally, everyone has individual work and personal needs.
We seek to enable the best work environment that helps you and the business work together to produce superior results. Equal Opportunities Equal Opportunity Employer, including disability and protected veteran status.
Except where prohibited by state law, some offers of employment are conditioned upon successfully passing a drug test.
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