Senior Python Engineer(AWS IoT Core)

Role summary

We are seeking an experienced Software Engineer with expertise in Python to join our digital data platform team. The ideal candidate will lead the development of data-driven applications and services using Python, related technologies, and AWS cloud services.

The engineer will be responsible for IOSIX Device Manager, a cloud-based software platform that deals with high-throughput ingestion, processing, and management of telematics data from vehicle TCUs (Telematics Control Units). The system is built on a modern AWS Serverless architecture, leveraging Python and Terraform for robust, scalable infrastructure.

Key activities

• Serverless Development: Design, build, and maintain AWS Lambda functions using Python 3.10+.
• Data Pipeline Management: Orchestrate the ingestion of IoT data via AWS IoT Core, processing it through various stages (decoding, status updates) and storing it in DynamoDB and Amazon Timestream/Snowflake.
• Infrastructure as Code: Manage and provision cloud resources using Terraform.
• Quality Assurance: Write comprehensive tests using Pytest, maintaining high code coverage and adhering to strict linting (Ruff) and formatting standards.
• CI/CD: Maintain and improve build pipelines using Jenkins and Makefile automation.
• Tooling: Manage dependencies with Poetry and ensure type safety/validation with Pydantic.
• Participate in architecture discussions and contribute to technical decision-making
• Ensure the scalability, reliability, and performance of Python applications on AWS
• Stay current with Python ecosystem developments, AWS services, and industry best practices

Technical Stack & Requirements

Must-Have

• Python: Expert level (3.10+). Strong grasp of async/await, typing, and modern patterns, strong understanding of OOP and functional programming patterns.
• AWS IoT Core: Experience with the below areas
• 1. Real experience with minimum 100 managed devices
• 2. Automated provisioning (X.509 Certificates)
• 3. Device Shadows (State Management)
• 4. Message Broker & Topic Architecture
• 5. Rules Engine & Edge-to-Cloud Handshake
• 6. Device Management & Jobs (OTA Updates)
• AWS Serverless: Deep experience with Lambda, API Gateway, DynamoDB, IoT Core, S3.
• Containerization & Orchestration : Good experience with Kubernetes, Docker
• Infrastructure as Code: Proven experience with Terraform.
• Data Engineering: Experience with time-series data (Timestream) and NoSQL data modeling.
• Dependency Management: Experience with Poetry, Black, Pylint, Bandit, Pytest.
• Messaging & Event-Driven Architecture: Good experience with AWS Kinesis, SNS, SQS
• Quality Assurance: Strong habit of writing tests (Pytest, Mock, Coverage) and using static analysis tools.

Nice-to-Have

• IoT Domain Knowledge: Experience with CAN bus, OBD-II, or general vehicle telematics (TCU data).
• Protocol Buffers: Experience with protobuf (used via protofive).
• DevOps: Experience with Jenkins pipelines.

Other comments

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or related field
• 5+ years of experience in Python development
• Experience with data processing libraries (e.g., Pandas, NumPy, SciPy)
• Knowledge of RESTful API design and implementation
• Solid understanding of AWS services, especially AWS IoT, and cloud architecture
• AWS Certified Developer - Associate or AWS Certified Data Analytics - Specialty certification preferred