Senior Fullstack Software Engineer (Remote)

AvantosSt. Louis, MO

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Overview

Schedule

Full-time

Career level

Senior-level

Job Description

Company overview

Avantos is building the industry's first AI-native operating system for financial services, redefining how firms onboard clients, deliver advice, and manage core servicing workflows. We're a product-led team composed of founders and leaders from Wharton, MIT, top design programs, and prior unicorn SaaS companies.

Tech Stack

Our full tech stack includes the following - experience with these will be considered a plus, but not required:

Languages: Go, Typescript
Frontend: React
Database: Postgresql
AWS: ECS Fargate, AppFlow, S3, SQS, Bedrock
IaC: Terraform
Observability: Datadog

View a technical talk that gives an overview of a previous project here.

Team Overview

Matt Dupree

Was going to be a philosophy professor but got into tech instead. I've built mobile apps and web apps, worked on a data science team, and founded a VC-backed startup. Was hired as the 5th engineer at Avantos. Favorite movie: The Prestige. (I generally like anything Christopher Nolan does.)

Tristan Mortimer

Most recently worked at a crypto startup. Before that, Amazon. x-Rust-user-group organizer. Outside of work, I spend time enjoying the great outdoors and traveling to different places. Favorite movie: Cars 3. (This might be a joke. We're not sure.)

Rishabh Garg

Was working on Bedrock at AWS but wanted to get some startup experience, so I jumped ship and joined Avantos in the Summer of 2025. Favorite movie: The Grand Budapest Hotel

Interview Process

10-minute async coding challenge
Hiring manager chat and 20-minute coding challenge
React App Take-Home Challenge
System Design Interview
Chat w/ Head of Product

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FAQs About Senior Fullstack Software Engineer (Remote) Jobs at Avantos

What is the work location for this position at Avantos?

This job at Avantos is located in St. Louis, MO, according to the details provided by the employer. Some roles may also include multiple work locations depending on the requirement.

What pay range can candidates expect for this role at Avantos?

Employer has not shared pay details for this role.

What employment applies to this position at Avantos?

Avantos lists this role as a Full-time position.

What experience level is required for this role at Avantos?

Avantos is looking for a candidate with "Senior-level" experience level.

What is the process to apply for this position at Avantos?

You can apply for this role at Avantos either through Sonara's automated application system, which helps you submit applications 10X faster with minimal effort, or by applying manually using the direct link on the job page.