Senior Backend Engineer (Golang) – Spanish Market

fiskaly GmbH; Madrid; Híbrido; EUR 45.000 - 70.000; Jornada completa

Descripción de la vacante

A tech innovation company in Madrid seeks a Senior Backend Engineer specializing in Golang and fiscalization solutions. The role requires 5+ years of backend development experience with a focus on creating and managing SaaS solutions. The candidate should be fluent in English and ideally Spanish. This position offers a salary range of EUR 45k - 70k annually, along with flexible working hours and a supportive environment.

Servicios

Flexible working hours

Work permit sponsorship

Budget for personal and professional development

Mental health platform access

Company hardware of your choice

Shared office space in Madrid

Formación

• 5 years of experience as a full-time Backend Developer.
• Proficiency in Golang and other OOP languages.
• Fluent in English and ideally Spanish.

Responsabilidades

• Developing, deploying, and monitoring backend solutions.
• Creating software solutions for API-first fiscalization.
• Collaborating with a team to deliver high-quality software.

Conocimientos

Backend development

Golang

Docker

API development

Problem-solving

Team collaboration

Educación

Bachelor's degree in Computer Science or related field

Herramientas

Kubernetes

Event-based systems (RabbitMQ, Kafka)

Descripción del empleo

fiskaly Madrid, Community of Madrid, Spain

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fiskaly Madrid, Community of Madrid, Spain

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Join our team as a Senior Backend Developer (Golang) , specializing in API-first fiscalization solutions . With over 5 years of experience in backend development using Golang and other OOP languages , you will contribute to our SaaS platform , managing the full software lifecycle

Location : Based in Spain

Language requirements : English professional proficiency, and ideally you are fluent speaking Spanish.

Experience requirements : 5 years as fulltime Backend Developer, preferably working with Golang and other OOP languages

Gross salary range : EUR 45k - 70k / year

Employment type : no freelancing, full time

Who We Are : At fiskaly, innovation drives us. We're reshaping the landscape of fiscal compliance with our cloud-based solutions for electronic receipts and invoices. Our team thrives on diversity and collaboration, committed to creating a supportive environment where everyone's contributions are valued. Join us to play a key role in our mission.

The Role : You are responsible for creating software solutions according to the requirements of our products. You'll get the chance to shape how the future of our solutions will look like. Your technical expertise, problem-solving abilities, creativity, and collaboration skills are key to deliver a successful outcome.

Your Responsibilities

• You’ll be part of one of our teams formed out of 3 - 7 people
• You’ll get an end2end delivery responsibility from developing, deploying, up to monitoring the software you and the team will create. We strive to achieve this by employing a Continuous Everything approach to our day-to-day activities (also known as GitOps)
• You'll be working on one of our API first SaaS solutions for fiscalization or related areas
• You'll get the chance to design and evolve the unified interface for all our services
• You'll take care that our documentation is kept relevant and supports us internally and externally

You're a fit if

You value diversity and inclusion, regardless of gender, heritage, beliefs, or identity

You have knowledge about distributed systems and proven experience working with them

You have experience with Docker or similar container platforms

You have experience with RESTful and RPC based APIs

You can effectively communicate abstract ideas and concepts to others

You are, preferably, allowed to work within the EU Borders

You have experience or a strong interest in integrating AI and automation into software solutions to build innovative and efficient tools

You’ll actively apply AI / ML tools (e.g., code generation, anomaly detection, test automation) to enhance software quality, performance, and efficiency

You'll impress us if

You have knowledge about SOLID principles and design patterns

You’ve applied AI to improve backend systems—whether through automated scaling, anomaly detection, or intelligent logging

You have experience working in a Continuous Everything environment (GitOps)

You bring an honest interest in modern cloud computing services such GCP, and ideally you already have practical experience with Kubernetes services and their deployment

You have working experience with asynchronous message / event based systems (RabbitMQ, Kafka, PubSub, ...)

You have knowledge about different types of database systems and when to best apply them (relational, document storage, key-value, ...)

You dare to lead, and your are curious to discover new ways of solving complex problems

You are willing to develop yourself continuously, personally, and professionally

What we can offer

The possibility to grow, to try new things, and to fail and to learn in a supportive and encouraging environment

Flexible working hours and a hybrid work arrangement

Work permit sponsorship

A budget for personal and professional development and regular 1 : 1 with your Engineering Manager to build your own career path

Company hardware of your choice (Windows, Linux or Mac)

Individual access to a mental health platform, because we care about a mindful environment

A public transportation ticket if you're in Vienna

Access to our HQ in Vienna next to the subway station (Neubaugasse U3)

Our shared office space, if you happen to be in Berlin, Madrid or Milan

A vibrant, inclusive company culture that values your well-being and personal growth

Want to learn more about our benefits?

Why choose fiskaly?

Forget monotony and rigid structures - fiskaly is all about innovation, openness, and flexibility. We're a team that celebrates diversity and is driven by the challenge of transforming an industry. Still thinking you might not tick every box? We say, apply anyway. We believe in growth, learning, and the unique value you bring to the table.

Seniority level

Seniority level

Mid-Senior level

Employment type

Employment type

Full-time

Job function

Job function

Engineering and Information Technology

Industries

Software Development

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