Lead Engineer

Stephen Kelly

Stephen leads engineering at KrysInfinity, owning architecture decisions, sets the standards the team builds against, and makes sure every project has a technical plan that holds up beyond the first release.

Experience: 8+ years
Primary focus: Scalable platform architecture

Back to the team

Sets the technical direction and keeps the architecture honest.

Introduction

Stephen has spent more than eight years building and leading teams on production systems: multi-tenant platforms, commerce back ends and data-heavy internal tools. Stephen is most useful at the point where a product's early decisions start to matter, when there's a choice between a quick fix and a structure that will still work at ten times the load.

At KrysInfinity, Stephen runs architecture reviews, coordinates delivery across the team, and mentors engineers on system design and code quality. Clients usually work with Stephen first, translating business goals into a technical approach with the trade-offs stated upfront.

Core technical skills

System architecture
TypeScript
Node.js
PostgreSQL
Distributed systems
AWS
Terraform
Event-driven design

Areas of specialization

Scalable platform architecture
Technical roadmapping
Legacy system modernization
Engineering standards & code review

Responsibilities at KrysInfinity

01Technical leadership and solution architecture for every engagement
02Engineering strategy and technology selection
03System scalability, resilience and performance planning
04Code quality standards, review practices and documentation
05Technical project coordination across the team
06Mentoring and supporting engineering team members

Career timeline

8+ years

Present
Lead Engineer · KrysInfinity
Stephen leads engineering at KrysInfinity, owning architecture decisions, sets the standards the team builds against, and makes sure every project has a technical plan that holds up beyond the first release.
2023 – 2025 · Remote
Principal Software Engineer at Corvane Logistics Cloud
Led the architecture of a multi-tenant logistics platform, splitting a shipment-tracking monolith into event-driven services. Defined service boundaries, on-call practices and the internal RFC process.
- TypeScript
- Node.js
- PostgreSQL
- Kafka
- AWS
- Terraform
2021 – 2023 · Los Angeles, CA
Senior Software Engineer, Tech Lead at Tessellate Commerce
Technical lead for a six-person team owning checkout and order management. Introduced design reviews, contract testing between services and a staged rollout process for payment changes.
- Next.js
- Node.js
- Redis
- Stripe
- Kubernetes
- GraphQL
2019 – 2021 · Remote
Software Engineer II at Halvorsen Data Systems
Built reporting APIs and scheduled data pipelines for enterprise analytics customers. Reworked slow aggregate queries and introduced caching for the most-used dashboards.
- Python
- Django
- PostgreSQL
- Airflow
- Docker
2018 – 2019 · Pasadena, CA
Software Engineer at Bluepine Software Studio
Delivered client web applications end to end at a small product studio, from requirements workshops through deployment and handover documentation.
- React
- Node.js
- Express
- MongoDB
- AWS

Employment history shown here is representative placeholder content pending verification, not a confirmed record of Stephen's previous employers.

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Introduction

Responsibilities at KrysInfinity

01Technical leadership and solution architecture for every engagement

02Engineering strategy and technology selection

03System scalability, resilience and performance planning

04Code quality standards, review practices and documentation

05Technical project coordination across the team

06Mentoring and supporting engineering team members