Software Engineer - Python / IoT Development

Work Schedule

Environmental Conditions

Job Description

Are you ready to be part of a team that is at the forefront of technological innovation? Thermo Fisher Scientific Inc. is seeking a Python / IoT Development Engineer to join our ambitious team in the United States. This is an outstanding opportunity to work within a world-class organization that is committed to making the world healthier, cleaner, and safer. As part of our team, you will collaborate with exceptionally dedicated engineers and scientists to develop and implement flawless solutions that impact global health and safety.

This position is subject to the successful completion of a United States federal government Tier 3 security clearance. U.S. citizenship is a requirement of this clearance process under federal law.

Position Summary:

You will join the Digital Platforms group focusing on enterprise initiatives and technical projects. This multifaceted environment offers an outstanding opportunity to craft the future of our digital offerings.

Location:

This position is a site-based role with the opportunity to work at one of our three locations: Oakwood Village, Ohio; Madison, Wisconsin; or Tewksbury, Massachusetts.

What you will do:

• Define and develop verifiable requirements and software builds.
• Write technical documentation for software architecture, development, and verification plans.
• Develop software requirements, architectures, and builds for fault-tolerant systems
• Participate in all aspects of software development, systems integration, test execution, issue resolution, and reviews.
• Collaborate and communicate effectively with software, hardware, and test engineers across the team.

How you will get here:

Education:

• BS in Computer Science, Engineering, Chemistry, Mathematics, or equivalent work experience with 5+ years of related experience.

Knowledge, Skills, Abilities:

• AWS IoT Core & GreenGrass have become commonplace in this job listing.
• Extensive practical background in setting up and rolling out AWS IoT Core and AWS Greengrass v2 elements.
• Ability to develop, package, and deploy custom Greengrass components in Python.
• Experience setting up secure IoT communication between devices and the AWS cloud using IoT policies, certificates, and device shadows.

Python Development

• Proficient in Python 3 for developing IoT applications, services, and integrations.
• Experience working with AWS SDK for Python (boto3) for IoT and cloud interactions.
• Knowledge of modular, maintainable coding practices for embedded/gateway applications.

Linux Gateway Configuration

• Strong experience with Linux-based IoT gateways (system configuration, networking, security hardening).
• Ability to install, configure, and address issues with AWS IoT Greengrass Core software on a Linux gateway.
• Familiarity with system services, logging, and debugging tools for device operation.

AWS Cloud Environment Setup

• Experience with IAM roles/policies, IoT Things, and IoT Groups for device security and management.
• Ability to configure and manage cloud-side resources (e.g., Lambda functions, S3 storage, DynamoDB, MQTT topics) to integrate with IoT Core.
• Familiarity with CloudFormation, CDK, or Terraform for reproducible IoT infrastructure setup (preferred).

Networking & Security

• Understanding of TLS, certificates, and secure communication protocols for IoT devices.
• Capability to diagnose connectivity problems between the gateway and AWS IoT Core (firewall, ports, MQTT topics).

General Skills

• Strong debugging and problem-solving skills in distributed IoT systems.
• Familiarity with DevOps practices, CI/CD pipelines, and source control (GitHub).
• Good documentation and interpersonal skills for working with cross-functional teams.

Join us at Thermo Fisher Scientific Inc. and contribute to our mission of enabling our customers to make the world healthier, cleaner, and safer. Embrace this opportunity to grow within our dynamic organization and make a significant impact on global health and safety!