Full Stack Engineer

OnHires; Bilbao; A distancia; EUR 70.000 - 95.000; Jornada completa

Descripción de la vacante

A rapidly growing European SaaS company is seeking a Senior Full-Stack Engineer to lead the development of core products, manage architecture and performance, and collaborate on product strategy. Ideal candidates have extensive experience with React, TypeScript, Python, and AWS, and thrive in a fully remote environment across the EU. This role offers autonomy and a direct impact in a fast-paced setting.

Servicios

Full ownership from architecture to deployment

Product-driven, small team

No bureaucracy

High-trust culture focused on autonomy

Formación

• 6+ years of full-stack experience (React + TypeScript + Python).
• Strong understanding of AWS and serverless architectures.
• Proven record in SaaS / B2B startups or platforms.
• EU-based, with right to work in the EU.
• Curious, proactive, product-minded engineer who thrives in autonomy.

Responsabilidades

• Lead development of core products, including OCR platforms.
• Own architecture, performance, and deployment across a modern serverless stack.
• Collaborate directly with founders to shape product strategy.
• Maintain and evolve existing services for reliability and performance.

Conocimientos

React

TypeScript

Python

AWS

Serverless Architecture

Herramientas

PostgreSQL

DynamoDB

Serverless Framework

Firebase

Descripción del empleo

Senior Full-Stack Engineer | SaaS | Python | React | AWS | Remote (EU)

A fast-growing European SaaS company transforming how consumers manage broadband, mobile, energy, streaming, and financial subscriptions. Our platform powers real-time comparison, bill analysis, and subscription management for hundreds of thousands of users monthly. We’re entering a new expansion phase across Europe, scaling rapidly and integrating AI capabilities.

Your Impact

• Lead development of core products, including OCR platforms (500K bills processed), scalable checkout systems, high-traffic APIs (300K+ monthly checks), and AI conversational agents.
• Own architecture, performance, and deployment across a modern serverless stack.
• Collaborate directly with founders to shape product strategy and technical direction.
• Maintain and evolve existing services for reliability, scalability, and performance.

Tech Stack

• React + TypeScript (Redux, Material-UI, Vite)
• Python (Serverless Framework)
• PostgreSQL, DynamoDB
• AWS (Lambda, API Gateway, S3, CloudFront, CloudWatch, IAM, VPC, SQS), Firebase
• LLMs via API (Claude Code, Cursor, or similar)

Requirements

• 6+ years of full-stack experience (React + TypeScript + Python)
• Strong understanding of AWS and serverless architectures
• Proven record in SaaS / B2B startups or platforms
• EU-based, with right to work in the EU
• Curious, proactive, product-minded engineer who thrives in autonomy

Why Join

• Full ownership from architecture to deployment
• Product-driven, small team with direct impact
• Fast-moving environment, zero bureaucracy
• Profitable, scaling across Europe
• Fully remote, optional retreats (Alps & Mediterranean), high-trust culture focused on autonomy and accountability