Elias Berg's Resume

Work Experience

Klaviyo

(Hybrid - Boston, MA)

B2C Marketing & Service

Senior Software Engineer

December 2024

Dec. 2024 - Present

Full Stack

Agile SDLC

Typescript

React

Python

Django

AWS

Grafana

Linear

Cursor

Claude

Codex

Primarily contributed frontend and backend channel infrastructure for Klaviyo's Helpdesk and Customer Agent.
Added inbound and outbound message processing pipeline for Instagram DMs, as well as outbound WhatsApp message processing.
Lead QA sessions and worked closely with designers, emphasizing quality and UX for brand use of Customer Agent.
Developed a public-facing marketing page to facilitate product-led growth for Klaviyo's AI agent.
Leveraged L3 agentic AI to significantly boost team and individual productivity.
MC'ed team meetings and events, including engineering learning sessions and biweekly team demo showcases.
Conducted live code-collaboration interviews for Software Engineering roles below and equal to my level.

OneStudyTeam

(Remote)

Clinical Trial Enrollment

Software Engineer

May 2022

➜

Senior Software Engineer

April 2024

May 2022 - Nov. 2024

Full Stack (2.5 yrs)

Agile SDLC

Jira

Clojure

PostgreSQL

React

TypeScript

GraphQL

AWS

CircleCI

Git

Cross-team contributor and squad point person for other teams, beyond role expectations.
Lead and contributed technical and product insight for architecture design review meetings.
Integrated with multiple third party systems, including Salesforce, Cronofy, and Zingtree.
Produced multiple, reusable, functional React components within a shared component library.
Enhanced performance and usability of high-traffic site pages with server pagination and other methods.
Patched existing large application codebase and various microservices within AWS architecture.
Learned Clojure from scratch and contributed code within 2 weeks despite a 4-week onboarding expectation.

Epic Systems

(Verona, WI)

Electronic Medical Records

Software Developer I

July 2015

➜

Software Developer II

Aug. 2019

July 2015 - May 2022

Full Stack (6.8 yrs)

Waterfall SDLC

VB6

MUMPS

Caché

NoSQL

HTML

CSS

JavaScript

TypeScript

SVN

Lab application functional area R&D lead for the result report routing and label printing modules.
Analyzed and designed fixes and enhancements to an InterSystems Caché NoSQL database.
Worked on-site with lab techs and admin staff to establish system specifications and requirements.
Planned projects of limited duration and scope and provided functional area long-term roadmaps.
Marketed current and upcoming development projects with current and prospective customers.
Collaborated with UX designers to revamp end-users activities with heavy emphasis on CSS.
Migrated legacy VB6 code to a modern C#-based MVVC web platform.
Deployed a new web product for PHI/PII-safe printing using WebSockets, Custom Protocol Handlers, and AES encryption.
Attended multiple different industry conferences as an R&D representative, including Executive War College and
Mentored fellow developers, managed summer interns, and ran a yearly team hackathon.

Additional Skills

Java

C++

MySQL

Go/Golang

JUnit/TestNG

Selenium

Cypress

Jenkins

Docker

Jira

Datadog

Chronosphere

Sentry

LaunchDarkly

Statsig

Swagger/OpenAPI

Azure

Terraform

Kafka

Kubernetes

CloudFlare

Object-Oriented Design

Event-based Architecture

Microservices

REST APIs