Senior Backend Software Engineer (Java) - Infinni

Infinni; Barcelona; Híbrido; EUR 70.000 - 120.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Relocation package

Remote work within Canary Islands

Career growth

Inclusive culture

Direct impact

Descripción de la vacante

INFINNI, the infrastructure behind the creator economy, is seeking a Senior Backend Software Engineer to help build and scale our backend systems powering global products.

You will design and implement scalable microservices in Java/Spring, craft robust RESTful APIs, and collaborate with teams across Europe and Asia to deliver high-performance software.

Join a world-class team in a fast-growing SaaS company with a focus on reliability, observability, and production excellence.

Formación

• 5+ years of backend experience focused on Java and distributed systems.
• Strong fundamentals in OO design, clean code, and scalable architecture.
• Experience building microservices with Spring Boot and Spring Cloud.
• Proficient in RESTful API design and database scalability.

Responsabilidades

• Design, develop, and maintain scalable backend services and distributed systems.
• Build production-ready software using Java and Spring ecosystem.
• Develop reliable RESTful APIs and event-driven services with messaging systems.
• Improve system observability with monitoring, logging, and tracing.
• Collaborate with cross-functional teams across Europe and Asia.

Conocimientos

Java

Distributed systems

Object-oriented design

Clean code

APIs

SQL optimization

AWS

Docker

Kubernetes

CI/CD

Problem solving

Communication

Herramientas

Spring Boot

Spring Cloud

MySQL

PostgreSQL

Kafka

RabbitMQ

Docker

Kubernetes

AWS

REST APIs

CI/CD

Descripción del empleo

Descripción del trabajo

About INFINNI

INFINNI is the infrastructure behind the creator economy. We're already the leading CRM in our category, with thousands of creators and creator businesses running their operations on our platform. Now we're building the next layer of products, AI-powered tools, big-data and infrastructure purpose-built for creators.

We're a global team of 180+ builders at the rare inflection point where a category leader becomes a category-defining platform. The decisions we make in the next 18 months will shape an industry.

About the Role

We are looking for an experienced Senior Backend Software Engineer to help build and scale the backend systems powering our global products and platforms.

You will work on highly scalable distributed systems, contribute to the design and implementation of mission-critical services, and collaborate closely with engineering teams across Europe and Asia.

This role is ideal for engineers who are passionate about building reliable, high-performance systems, enjoy solving complex technical challenges, and take pride in delivering high-quality software throughout the full product lifecycle.

What You’ll Do:

Backend Engineering

• Design, develop, and maintain scalable backend services and distributed systems
• Build high-quality, maintainable, and production-ready software using Java and the Spring ecosystem
• Design and implement clean, reliable, and well-documented RESTful APIs
• Develop resilient event-driven and asynchronous services using modern messaging platforms
• Optimize application performance, scalability, reliability, and resource utilization
• Troubleshoot production issues and continuously improve system stability and operational excellence

System Design & Technical Contribution

• Participate in architecture discussions and contribute to technical design decisions
• Design scalable solutions for high-concurrency, low-latency, and highly available systems
• Improve system observability through monitoring, logging, tracing, and alerting
• Identify technical debt and continuously improve system quality and maintainability
• Participate in code reviews and uphold high engineering standards and best practices

Cross-Functional Collaboration

• Collaborate closely with Product, QA, DevOps, Infrastructure, and other engineering teams
• Work effectively with distributed engineering teams across Europe and Asia
• Contribute throughout the full software development lifecycle, from technical design and implementation to deployment and production operations
• Share technical knowledge and contribute to a collaborative, transparent engineering culture

What We’re Looking ForCore Qualifications

• 5+ years of professional experience in backend software development, specializing in Java and distributed systems
• Strong software engineering fundamentals with solid expertise in object-oriented design, clean code, and maintainable system architecture
• Extensive experience building and operating microservices using the Spring ecosystem, including Spring Boot and Spring Cloud
• Strong understanding of computer science fundamentals, including data structures, algorithms, networking, and operating systems
• Experience designing scalable and distributed systems with a solid understanding of consistency, fault tolerance, high availability, and scalability
• Proficient in designing RESTful APIs with a strong focus on API usability, versioning, and maintainability
• Extensive experience with relational databases such as MySQL or PostgreSQL
• Strong expertise in SQL optimization, indexing strategies, schema design, query tuning, and database scalability
• Hands-on experience with event-driven and asynchronous architectures using Kafka, RabbitMQ, or similar messaging systems
• Proven experience designing and optimizing high-throughput, low-latency, and highly available production systems
• Hands-on experience with AWS cloud services and cloud-native application development using Docker and Kubernetes
• Familiar with modern DevOps practices, including CI/CD pipelines, automated testing, infrastructure automation, and production monitoring
• Experience delivering complex production systems throughout the full software development lifecycle, from architecture design to deployment and ongoing operation
• Strong analytical, problem-solving, and communication skills with the ability to collaborate effectively across cross-functional and distributed teams

Nice to Have

• Experience with frontend technologies such as React, TypeScript, or Electron
• Experience working in international or distributed engineering teams
• Experience in high-growth startups or fast-paced product organizations
• Experience building developer platforms, infrastructure tooling, or AI-enabled systems
• Experience with observability platforms such as Datadog, Prometheus, Grafana, OpenTelemetry, or similar tools
• Experience contributing to architectural discussions and technical decision-making

WHAT’S IN IT FOR YOU

• Competitive salary: Attractive compensation and relocation package commensurate with experience and skills. Bonus Beckham Law tax rate if you are moving to Spain for the first time.
• Remote work and yearly company offsite: We offer flexible working hours and location options (work remotely within the Canary Islands, or from our two offices in Tenerife).
• Professional growth: Opportunities for career advancement and personal development in a fast-growing company.
• Inclusive culture: Be part of a diverse and collaborative team committed to innovation and excellence.
• Direct Impact: working with a team focused within a high-growth SaaS company helping creators thrive!