github.com/mzanini • linkedin.com/in/marco-zanini • marco.zanini@hey.com
I’ve led and shipped company-wide initiatives with lasting impact on performance, cost efficiency, and product differentiation. Most recently, I architected and led the Heroku→AWS migration, defined Groove’s API strategy, and shipped the first public API to enable third-party integrations.
Based in the Greater Seattle Area
🤓 Work Experience
@ Clari in Seattle, WA (remote)
Ruby on Rails, TypeScript, GraphQL, PostgreSQL, React, AWS, Kubernetes, Docker, Heroku, JSON:API
Staff Software Engineer - Architecture Team (Aug 2023 - Present)
Driving technical projects across the company: focusing on architecture, performance, and cost optimization.
- Leading migration of all 8 services from Heroku to AWS EKS (Kubernetes); consolidating to one platform and unlocking 40% infrastructure cost savings.
- Migrated Heroku Key-Value store to AWS ElastiCache (4 instances); 130k requests/minute, p90<10ms; all while cutting costs >50%.
- Shipped first version of partner API and API strategy for Clari’s Groove, enabling third-party integrations. Using JSON:API, OAuth 2.0: 5+ integrations live (ZoomInfo, LeanData, Nooks); ~3k requests/day across core partner flows.
- Re-architected Groove’s Dialer to a Postgres-backed event pipeline; handles ~30k calls/hour and cut dropped calls ~75%.
Ruby on Rails, GraphQL, PostgreSQL, JavaScript/TypeScript, Next.js, React, Salesforce Apex, Heroku, AWS
Full-stack SWE → Sr SWE → Eng Lead → Eng Manager → Software Architect (Jun 2018 - Aug 2023)
Lead company-wide projects to add new features, improve code modularity, performance and reliability.
- Upgraded Rails 4.2→5.2→6.1; introduced private gems, ActionCable, Redis cache, encrypted credentials; began monolith decomposition with packwerk.
- Rolled out read-replica DB; offloaded 10% of reads, stabilizing peak traffic and improving P95 latency for heavy reports.
- Managed 5 engineers to launch Groove’s Conversation Intelligence; 66k+ calls processed of which 80% mapped to Salesforce objects.
- Rebuilt meeting scheduler (Next.js + Rails); improved UX, reduced latency with server-side rendering.
- Shipped Automatic Logging To Custom Objects, allowing Groove to serve customers in non-tech verticals.
- Shipped Auto Contact Capture, increasing number of automatically captured contacts by 20% in early tests.
- Migrated Salesforce Managed Package to SFDX; enabled parallel feature work and CI/CD, growing contributors from 1 to 8 and increasing release frequency five-fold.
C++, Ruby, AMQP, Apache Qpid, Docker, Kubernetes, OpenShift, Red Hat Enterprise Linux, Ansible
Software Engineer II / Team Lead (Jan 2017 - May 2018)
- Redesigned a legacy messaging application toward a containerized architecture (Docker/Kubernetes/OpenShift), reducing rollout risk and simplifying ops.
- Implemented C++ services for PTC and Ruby simulators used in UAT, enabling decoupled testing and faster feedback cycles.
- Evangelized reliability tooling (Google Sanitizers) and estimation practices adopted by 5 engineering teams.
C++, C#, WPF, TDD
Software Engineer (Feb 2013 - Jun 2016)
- Implemented C++ services and UI workflows for data acquisition/processing.
- Converted MATLAB library to C++ (Armadillo), 2× faster and no license dependency.
- Drove engineering practices as Scrum Master (TDD/pairing), increased test coverage ~50%; shipped monitoring POC projecting ~$5k/job savings.
Java
Researcher (Cloud Security) (October 2011 – March 2012)
Researched dynamic cloud security and built context-aware countermeasures in collaboration with IBM Dublin
🚀 Entrepreneurship
@ Zero Mile Labs in Issaquah, WA (Side Project)
React Native, Ruby on Rails, GraphQL
Owner (Jan 2021 - Present)
I founded Zero Mile Labs with one goal: shorten the distance between people and their food. With that goal, I built CropStand, a mobile app that allows small food producers to get their roadside produce stand online in minutes. Producers list the produce they have available and accept payments entirely in the app.
Logo and app design, wireframing, development and deployment all done by yours truly. The app is available on both iOS and Android.
🔬 Education
Master of Science, Computer Engineering (2010 - 2012)
Bachelor of Science, Computer Engineering (2006 - 2010)
💬 Languages
Italian: Native
English: Bilingual
French: Full Professional Proficiency