Senior Fullstack Software Engineer
Avantos
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
$190k - $240k
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...systems. Our teams span digital strategy, architecture, engineering, design, operations, and applied AI across a wide range of... ...love to hear your story. The opportunity As a Senior Full Stack Software Engineer , you will independently develop, test, and maintain...SeniorSummer holidayLocal areaFlexible hours- ...Role Overview: This role is for a Senior Java Full Stack Developer with experience... ...Skills: Java Developer Full stack engineering experience in a production environment... ...skills in Java/JEE Proficiency in Software Development Best Practices (ATDD/BDD, Unit...Senior
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$216k - $311k
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- ...Freedom Technology Solutions Groups is looking to add a senior Software Engineer to the team! This position is fully onsite in St. Louis, MO. The ideal candidate must have demonstrated firsthand experience in at least three of the following: Java, JavaScript...SeniorFor contractorsWork at officeRemote workFlexible hoursNight shift
- ...directly contribute to significant advancements in defense technology. Job Summary: We are seeking a highly skilled Senior Software Engineer with robust expertise in C++ embedded development for a position based in St. Louis, Missouri. The ideal candidate will...Senior
$150k - $165k
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$118k - $178k
...for innovation and creating the best experience for job seekers. (*Comscore, Total Visits, March 2025) Day to Day As a Software Engineer III on the AI Gateway & Guardrails team at Indeed, you will own and drive the development of platform services that connect Indeed...SeniorWork experience placementLocal area- ...Senior Software Engineer- Quantitative Developer NISA Investment Advisors, LLC (NISA) offers customized investment solutions for tax-exempt and taxable institutional clients. NISA manages over $295 billion in fixed income and equity securities and over $167 billion...Senior
- ...code comments and clear code. Develop software solutions by studying information needs;... ...the program manager and Chief Software Engineer. Coordinate software development activities... ...Systems, or related STEM degree. Senior‑level experience deploying microservices...SeniorContract workTemporary work
$105.1k - $204.4k
...Analyzes, designs, codes, tests, configures, and modifies software projects and/or products or enhancements using various programming... ...reasons, and systems implementations. Qualifications - Senior Software Engineer Bachelor’s degree required, preferably in engineering,...Senior- The Federal Reserve Bank of St. Louis is looking for a Senior Software Engineer to modernize mission-critical applications in AWS GovCloud. You will lead a scrum team in technical design, implement microservices, and collaborate across teams to ensure architectural consistency...Senior
- Senior Software Development Engineer AI Applications Location: Saint Louis, MO Duration: 14Months+ Extension Hourly Rate: Depending on Experience (DOE) Work Authorization: Responsibilities Design, develop, and implement AI applications leveraging Microsoft AI Foundry...SeniorHourly payPermanent employmentContract workLocal areaRemote work
$140k - $200k
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$140k - $200k
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$118.15k - $159.85k
...with great opportunity for professional growth. Find your future with us. The Boeing Company is looking for Software Engineer – Systems (Experienced and Senior) to join our team in Berkeley, Missouri. This position supports a cross-functional engineering team,...SeniorPermanent employmentWork experience placementInterim roleCurrently hiringRelocationVisa sponsorshipWork visaFlexible hoursShift workDay shift- ...situational awareness for soldiers and analysts by integrating software development with geospatial intelligence. Our projects range from... ...to apply for future consideration. As a Full Stack Software Engineer, you will... Develop, deploy, and maintain cloud-based...Immediate start
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