Software Developer - Backend (Conversational Solutions)

Sinch; España; A distancia; EUR 40.000 - 70.000; Jornada completa

Descripción de la vacante

A leading communication technology company in Spain is looking for a Software Engineer to design and build their AI-powered orchestration platform. The ideal candidate will have production-level experience in backend development with Go and Typescript, and familiarity with AWS, Docker, and Kubernetes. You will work in a collaborative environment to develop scalable systems that enhance customer communications. Benefits include private health insurance and the option to work from home.

Servicios

Private Health Insurance

Pension Plan

Paid Time Off

Work From Home

Formación

• Production-level experience in backend development using Go and Typescript.
• Understanding of distributed systems and experience building high-scale microservices.
• Problem solver with a proactive approach to problem-solving.

Responsabilidades

• Design, develop, test, and support new and existing applications.
• Build high-performance, scalable systems for real-time messaging.
• Collaborate with team members to improve code functionality.

Conocimientos

Backend development using Go

Backend development using Typescript

Cloud platforms (AWS)

Containerized deployments (Docker, Kubernetes)

Distributed systems

Microservices and event-driven architectures

Observability, logging, and monitoring tools

Unit testing

Fluency in English

Herramientas

Redis

Kubernetes

Kafka

Visual Studio Code

IntelliJ

Descripción del empleo

Sinch is pioneering the way the world communicates. More than 150,000 businesses — including Google, Uber, Paypal, Visa, Tinder, and many others — rely on Sinch’s Customer Communications Cloud to power engaging customer experiences through mobile messaging, voice, and email.

Whether you need to verify users or craft omnichannel campaigns, Sinch makes it easy. Our AI-infused Super Network, APIs, and applications ensure you can connect with your customers reliably and securely, at every step of their journey.

At Sinch, we "Dream Big”, “Win Together”, “Keep it simple”, and “Make it Happen”. These values are our foundation!

As a Software Engineer, you will play a key role in designing and building the next generation of our AI-powered orchestration platform. You will work in a dynamic, collaborative environment to develop scalable distributed systems that power real-time messaging and LLM-based applications. Your contributions will directly impact the efficiency, performance, and safety of conversations at scale.

What You will Do

• Design, develop, test, and support new and existing applications on top of an established framework.
• Build high-performance, scalable, and distributed systems for real-time messaging and workflow execution.
• Work with an agile, cross-functional team taking responsibility for high-quality deliverables.
• Be self-motivated to independently drive through your accepted tasks.
• Collaborate with team members and the product owner to improve and enhance functionality of the code base.
• Implement and maintain best practices for observability, reliability, and fault tolerance across all our services.
• Work with DevOps, support, and operational teams as well as external suppliers in order to commission applications.

Requirements

Who are you?

Passion for coding is the most important ingredient for success. We are a bunch of enthusiastic problem solvers who enjoy solving complex problems.

We’d like you to join if you feel the same way. Teamwork and communication skills are essential.

In order to contribute to this role you must have :

• Production-level experience in backend development using Go and Typescript.
• Familiarity with cloud platforms (AWS) and containerized deployments (Docker, Kubernetes).
• Understanding of distributed systems and experience building high-scale microservices and event-driven architectures.
• Experience with observability, logging, and monitoring tools for debugging and performance analysis.
• Enterprise applications / tools such as Redis, Kubernetes, and Kafka.
• Experience of using unit testing.
• Facility with Visual Studio Code, IntelliJ or similar IDE.
• Problem solver: A proactive and independent approach to problem-solving and driving tasks to completion.
• Fluency in written and spoken English.

Nice to have

• Experience with LLM fine-tuning or AI-driven chatbot development.
• Experience building applications that integrate with Large Language Models (LLMs) via APIs.

Our Hiring Process

We are committed to ensuring a recruitment process that is fair, objective, consistent, and inclusive. Our approach includes structured, competency-based interviews designed to evaluate your skills, experience, and qualifications relevant to the role. At times, we may include a data-driven assessment to enhance our hiring success and identify candidates likely to excel.

We believe in a two-way process and encourage you to ask questions throughout the journey. If this role isn't what you're looking for, please explore the other opportunities listed on our career page. No matter who you are, we hope you find an exciting path forward — hopefully with us!

Benefits

• Private Health Insurance
• Pension Plan
• Paid Time Off
• Work From Home