Senior Full-Stack Engineer: End-to-End Python/React

Strider; Argentina; On-site; ARS 2,500,000 - 4,500,000; Full time

Job summary

Strider is building an Education Technology platform with user-facing web apps for families, school staff, and internal ops. You will advance front-end quality, design scalable components, and ship features end-to-end across the stack using TanStack Start, Mantine, and TypeScript.

Join a startup environment that embraces AI-assisted tooling, rapid iteration, and strong collaboration with product, design, and AI teams, while maintaining high code quality and security practices.

Qualifications

• 5+ years of full-stack experience with strong front-end and solid Python back-end skills.
• Expert-level TypeScript and React.
• Strong HTML and CSS experience.
• Significant Python experience, ideally FastAPI, Pydantic, and async SQLAlchemy.
• Experience with server-side rendering in a full-stack React framework (TanStack Start, Next.js).
• Front-end architecture experience: reusable component libraries, forms and validation, data fetching and caching, and front-end performance.
• Experience designing RESTful APIs with OpenAPI and typed API clients.
• PostgreSQL skills: schema design, migrations, indexes, constraints, transactions.
• Strict static typing in TS and Python.
• Automated tests experience (pytest, Vitest, Testing Library).
• Docker & Docker Compose for local development.
• Git + PR reviews + CI pipelines (GitHub Actions).
• Experience with AI-assisted engineering tools and reviewing/refining AI-generated code.
• Strong collaboration with team, product, design, AI teams; startup move-fast mentality.
• Strong English communication (spoken & written).

Responsibilities

• Build and evolve an Education Technology platform with web apps for families, school staff, and internal operations.
• Raise the bar for front-end quality: component design, accessibility, performance, UX polish.
• Ship features end-to-end: PostgreSQL schema/migrations, Python (FastAPI) services, React screens with TanStack Start, Mantine, and TS.
• Work in a modular monorepo (Python/TypeScript); read/write Architecture Decision Records before significant changes.
• Build secure, multi-tenant features: sign-in via OpenID Connect (Keycloak), fine-grained permissions, student/family data handling.
• Investigate and fix bugs, performance bottlenecks, and related issues.
• Maintain code quality through peer reviews, automated testing, CI gates, and best practices.
• Produce clean, efficient, well-documented code.
• Collaborate with product management, design, and engineering to ship reliable solutions.
• Keep current with emerging technologies and industry trends.

Skills

Full-stack experience

TypeScript

React

HTML/CSS

Python

FastAPI

Pydantic

async SQLAlchemy

TanStack Start

Next.js

OpenAPI

PostgreSQL

Static typing

Automated tests

Docker

GitHub Actions

AI-assisted tooling

Code reviews

Team collaboration

Startup mindset

English communication

CI pipelines

Tools

TanStack Start

Mantine

OAuth 2.0

OpenID Connect

Keycloak

gRPC

Protobuf

PostGIS

Kubernetes

GitOps (Argo CD, Helm)

Job description

Strider is building an Education Technology platform with user-facing web apps for families, school staff, and internal ops. You will advance front-end quality, design scalable components, and ship features end-to-end across the stack using TanStack Start, Mantine, and TypeScript.

Join a startup environment that embraces AI-assisted tooling, rapid iteration, and strong collaboration with product, design, and AI teams, while maintaining high code quality and security practices.