Staff Backend Engineer

Remofirst, Inc.; España; À distance; EUR 110 000 - 150 000; Plein temps

Avantages offerts par ce poste

Fully remote role

Exposure to international teams

High ownership & autonomy

Résumé du poste

RemoFirst in Spain is seeking a Staff Back-End Engineer to help maintain and scale our Python-based backend while guiding a transition to Java. You will own critical backend components, design robust APIs, and collaborate with international teams across Product, Design, and Ops in a fully remote setting.

Strong leadership and a passion for reliable, scalable systems are essential for success. The role offers high ownership, exposure to modern engineering practices, and the chance to impact

Qualifications

• 8+ years of backend software development experience.
• Strong professional experience with Python (Django, FastAPI, Flask, or similar frameworks).
• Strong professional experience with Java, preferably using Spring Boot.
• Experience designing and consuming RESTful APIs.
• Experience with relational databases (PostgreSQL, MySQL); exposure to NoSQL databases is a plus.
• Familiarity with unit testing, integration testing, and test-driven development (TDD).
• Experience with CI/CD pipelines, Git, and modern development workflows.
• Deep understanding of microservices architecture and distributed systems.
• Experience working with cloud platforms (AWS preferred).
• Strong problem-solving skills and attention to performance and scalability.
• Excellent written and verbal communication skills in English.

Responsabilités

• Design, develop, and maintain backend services using our core stack (Java/Python/SpringBoot/FastAPI/Postgres/Kafka).
• Lead engineering efforts and collaborate with cross-functional teams to deliver reliable products.
• Make architectural decisions and guide migration from legacy monoliths to distributed systems.
• Promote modern engineering practices (TDD, CI/CD, SRE culture, API-first design).
• Mentor less senior engineers through code reviews and learning sessions.

Connaissances

Python

Java

REST APIs

PostgreSQL

MySQL

NoSQL

Unit testing

CI/CD

Git

Microservices

AWS

English

Description du poste

RemoFirst is transforming the way businesses hire and manage global teams. Our mission is to enable Freedom of Work by providing an all-in-one global HR platform that simplifies hiring, compliance, payroll, and benefits management. We partner with some of the world's most innovative companies, including Fortune 500 businesses and leading startups.

We are a small but strong team of 200+ people (and growing) hyper-focused on delivering a world-class platform and unparalleled service with our industry-leading partnerships.

We are scaling at incredible speed and transforming one of the fastest-growing industries in the world. To fuel this momentum, we are looking for a Staff Back-End Engineer with strong experience in both Python and Java to help us maintain and improve our existing Python-based systems and support the design, build, and strategic transition of parts of our backend to Java.

This is a hands-on role with strong technical ownership and exposure to global-scale systems. This role goes beyond simply implementing requirements - you'd be a real product engineer taking extreme ownership over the quality of your product, caring deeply about our customers and what's being built. You will collaborate with international engineering, product, and design teams in a fully remote setup.

Requirements

• 8+ years of backend software development experience
• Strong professional experience with Python (Django, FastAPI, Flask, or similar frameworks)
• Strong professional experience with Java, preferably using Spring Boot
• Experience designing and consuming RESTful APIs
• Experience with relational databases (PostgreSQL, MySQL); exposure to NoSQL databases is a plusFamiliarity with unit testing, integration testing, and test-driven development (TDD)
• Experience with CI/CD pipelines, Git, and modern development workflows
• Deep understanding of microservices architecture and distributed systems
• Experience working with cloud platforms (AWS preferred)
• Strong problem-solving skills and attention to performance and scalability
• Excellent written and verbal communication skills in English

What hats will you wear

• As a hands-on leader from the IC track you will design, develop, and maintain backend services using our core stack (Java/Python/SpringBoot/FastAPI/Postgres/Kafka) alongside the rest of the engineers on the squads
• As the lead engineer you will be working closely with the broader cross-functional team (Product, Design, Operations, Sales) to build reliable and delightful products that address the real pain points of businesses operating in the growing remote talent market. You need to feel comfortable working with both technical and non-technical audience, within and outside of the company
• As an architect you will be in charge of making pragmatic yet sustainable architectural discussions, choose when and how to strangle functionalities off of our legacy monolith, establish domain boundaries, and choose the appropriate distributed system patterns
• As a leader in our Engineering Community of Practice, you will play a pivotal role in our adoption of modern engineering practices - TDD, real continuous delivery, SRE culture, API-first design to enable externally available dev APIs - and master the art of refactoring to gradually introduce them without stop-the-world year-long migrations
• As a mentor you will upskill less senior engineers by writing quality code yourself, leading our weekly learning sessions, conduct quality code reviews, encourage best practices by automatic trivial controls

Benefits

• Fully remote role
• Opportunity to work on global-scale systems and products
• Exposure to international teams and modern engineering practices
• High ownership and autonomy in a fast-growing startup environment
• A strong culture grounded in speed, ownership, trust, transparency, customer obsession, and excellence
• Real problems, global impact, and the chance to help redefine how the world works