Full Stack Software Engineer, CalypsoAI

Salary not provided

React

AWS

CSS

TypeScript

JavaScript

Python

Postgres

Ruby

MySQL

REST API

FastAPI

Pydantic

Mid and Senior level

Dublin

More information about location

1-5 days a week in office

Security and monitoring software for AI deployment

Be an early applicant

Security and monitoring software for AI deployment

21-100 employees

B2BArtificial IntelligenceSecurityMachine LearningSaaS

Be an early applicant

Salary not provided

React

AWS

CSS

TypeScript

JavaScript

Python

Postgres

Ruby

MySQL

REST API

FastAPI

Pydantic

Mid and Senior level

Dublin

More information about location

1-5 days a week in office

21-100 employees

B2BArtificial IntelligenceSecurityMachine LearningSaaS

Company mission

To accelerate the adoption of AI solutions through rigorous validation. By providing decision-makers with confidence in the real-world performance and robustness of their AI solutions, we can move AI from the sidelines to a central role in empowering their mission.

Job

Company

Role

Who you are

At least 3 years experience with server-side languages such as Python or Ruby with a server side framework like FastAPI or equivalent
Strong proficiency with JavaScript, Typescript and frameworks like Vue3, React or similar
Database Knowledge Familiarity with database technology such as Postgres, or MySQL
Strong ability to debug and troubleshoot software components
Knowledge of supporting JavaScript tools like Webpack, Vite, CSS Modules
Working knowledge of modern JavaScript features (ES2015 - ES2025)
Critical thinking & structured problem solving
Debugging complex, multi-service applications
Working as part of a team
Time management
Inter/intra-team communication

What the job involves

You’ll be building, testing, and maintaining both frontend and backend applications, as we continue to build out our world first AI security web application, making your role critical for the success of our business
Build - Design, develop, and maintain scalable front-end and back-end applications
Collaborate - Work alongside other engineers, QA, data science, and product teams to build user-friendly, high-performance software
Quality - Write clean, efficient, and maintainable code while adhering to best practices in software development
API Integration - Implement RESTful APIs and ensure seamless integration between front-end and back-end systems
Testing and Troubleshooting: Test, troubleshoot, debug, and optimize existing systems for performance and scalability
Architect - Design frontend and backend features with focus on best practice architecture and design patterns
Improve - Make suggestions for better solutions to the problems we face
Learn - Grown with the evolving nature of the web and its new features
Technologies we Use
Backend - Python, FastAPI, Pydantic, uv
Frontend - Typescript, Vue3, Vite
Source Control - Gitlab
Continuous Delivery - ArgoCD for Continuous delivery
Deployment - AWS stack (dockerised apps, helm charts, k8s for runtime)

Our take

AI presents algorithmic solutions for improving the efficiency of just about every tech company's operations, but the potential for machine learning security breaches prevents approximately 85% of AI projects from being deployed. This is particularly significant when it comes to military uses of AI, yet machine learning lacks a universal framework for testing, reporting, and auditing.

Calypso AI develops software tools and features that facilitate the testing, risk management, auditing, and ultimately validation of machine learning algorithms for AI creators and consumers. The aim of the company is to ultimately increase the speed at which AI projects can be moved from experiments to deployment through no-code dashboards, human-in-the-loop interventions, and real-world testing features within the CalypsoAI toolkit.

Many SaaS startups are applying AI to increase the efficiencies of innovative technologies such as cloud computing and IoT, but unlike Calypso AI, few have tackled the root problem of the cybersecurity of AI algorithms. Off the back of 2025 funding, the company is planning to accelerate its scale-up and expand its reach.

Steph

Company Specialist at Welcome to the Jungle

Insights

Top investors

Glassdoor (3.4)

Company

Funding (last 2 of 5 rounds)

Apr 2025

$5m

EARLY VC

Jun 2023

$23m

SERIES A

Total funding: $44.2m

Company HQ

Beresford Park, San Mateo, CA

Leadership

Neil Serebryany

(Founder)

Also a Venture Partner at Flex Capital. Previously worked in Innovation at the US Department of Defense.

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