EMMA FRIESNER
Brooklyn,NY
Summary
Senior software engineer with a decade of experience spanning startups and big tech, specializing in real-time IoT data ingestion pipelines, cloud computing, and API design. Proven track record of delivering reliable distributed systems, raising the bar on code quality and observability, and mentoring engineers. Passionate about using technology to accelerate the clean energy transition.
Overview
9
9
years of professional experience
Work History
Tech Lead
Ev.energy
Brooklyn, NY
03.2025 - Current
- Tech lead for all hardware integrations — EVSEs, vehicles, and batteries — overseeing the development and observability of a real-time distributed cloud platform that ingests device data and dispatches commands to manage charging at scale.
Senior Software Engineer
Ev.energy
Brooklyn, NY
11.2023 - 03.2025
- Built telematics systems to support real-time vehicle data ingestion and remote charging control across a growing fleet of connected vehicles.
- Led a platform-level data model refactor that standardised how hardware integrations are implemented — cutting onboarding time for new integration providers roughly in half.
Senior Software Engineer
Microsoft
New York, NY
12.2018 - 11.2023
- Joined as an early member of a small team to design, build, and scale Azure Digital Twins, a graph-based IoT cloud platform for building digital models of real-world environments.
- Owned REST APIs and microservices across the full stack — scaling the data ingestion pipeline 20x through sharding, shipping security features like AAD authentication and customer-managed encryption, and building the control plane and graph querying experience.
Software Engineer
Microsoft
Seattle, WA
08.2017 - 12.2018
- Contributed to a data and intelligence team supporting Windows app development — enhancing a static analysis tool for feature detection and piloting a new language for native Windows development.
Education
Bachelor of Science - Computer Science
Brown University
Providence, RI05-2017
Skills
- Python
- C#
- Azure
- AWS
- Kubernetes
- Kafka
- gRPC
- REST
- Event Driven Architecture
- NoSQL and SQL Databases
- API Design
- Internet of Things
- Authentication
Timeline
Tech Lead
Ev.energy
03.2025 - Current
Senior Software Engineer
Ev.energy
11.2023 - 03.2025
Senior Software Engineer
Microsoft
12.2018 - 11.2023
Software Engineer
Microsoft
08.2017 - 12.2018
Bachelor of Science - Computer Science
Brown University