Senior Software Engineer

On-site in Spain·Added 3 months ago

This job was published 3 months ago

Sinch

10 open roles

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Overview

Job details

€60,000 a year
Gross, as stated in the ad.
About €3,460 a month after tax, or €3,480 under the Beckham regime.
Blue Card threshold
Indicative — the ad doesn’t promise sponsorship.

Requirements

Work in English
English is required, per the ad.
Work on-site in Spain
No relocation package mentioned.
Have 5+ years of experience
Senior-level role.

Pay & benefits

What you'll get

The annual salary for this position is between between €60.000 until €80.000 Factors which may affect pay within this range may include skills, education, experience, and other qualifications

Requirements

Nice to have

Experience with Temporal and Kafka Experience with conversational AI LLMs or agent based systems Experience building platforms from scratch Background in CPaaS or communication platforms

The role

Sinch is a Customer Communication Cloud company powering conversations across messaging voice and email helping businesses deliver personalized customer experiences at scale More than 150000 businesses including leading global tech companies rely on Sinch

What you'll do

Design and build core platform components with high ownership and autonomy
Drive system design and create technical proposals
Work on distributed event driven systems combining deterministic workflows and AI agent behavior
Write production grade software including clean maintainable code with tests and documentation Build systems that are observable debuggable and resilient
Own full lifecycle including design deployment monitoring and on call responsibilities
Follow build ship run approach
Develop platform components integrating LLMs and AI agents
Work with prompt management context handling function calling guardrails and error recovery
Address challenges like testing non deterministic systems fallback strategies latency and cost optimization
Contribute to engineering excellence through architecture discussions code reviews and standards definition
Mentor team members and share knowledge
Collaborate across teams with product and technical stakeholders
Provide technical guidance and trade offs and align solutions with business needs

The Role

We are building the next generation of conversational AI infrastructure As a Senior Java Software Engineer on the Agentic Orchestration Platform team you will design build and own core components that coordinate AI agents workflow execution and multichannel communication via SMS WhatsApp and voice at scale

This is a zero to one opportunity to build a new platform from the ground up You will work on complex problems with high autonomy as part of a small senior team with significant impact You will collaborate with Engineering Manager Tech Lead Product Manager Domain Architect and cross functional teams

What We Are Looking For

Five to eight plus years of professional software engineering experience
Strong backend and platform skills including distributed systems microservices event driven architectures and cloud native design.
Ability to explain architectural trade offs clearly.
Strong engineering fundamentals including clean code testing strategies debugging production systems and building reliable long lasting systems
Experience with Java Spring AI TypeScript or React Deep expertise in at least two core backend technologies and willingness to learn others quickly
Experience using AI coding tools such as Copilot Claude Code Cursor or similar
Understanding benefits risks and best practices
Ability to work autonomously define scope and deliver solutions independently Strong decision making on prioritization
Experience with cloud and operations including AWS Docker Kubernetes CI CD GitOps infrastructure as code and monitoring
Strong communication skills with both technical and non technical stakeholders Fluent English required

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: https://www.sinch.com/careers/. No matter who you are, we hope you find an exciting path forward - hopefully with us!

About Sinch

Sinch is a global leader in cloud communications, providing APIs and platforms for messaging, voice, and email that enable businesses to engage with their customers across multiple channels. Headquartered in Stockholm, Sweden, Sinch operates worldwide and serves a diverse range of industries, from e-commerce to financial services, with a focus on mobile engagement and customer experience.

In Spain, Sinch has a significant engineering presence, particularly in Madrid, where it runs a development center focused on software engineering and product innovation. The company's culture emphasizes technical excellence, collaboration, and a global mindset, making it an attractive destination for international software engineers looking to work on large-scale communication platforms. With a strong commitment to diversity and inclusion, Sinch offers opportunities for career growth and the chance to work with a multicultural team.

Industry: Cloud Communications
Founded: 2008
Employees: 3,000–5,000
Headquarters: Stockholm, Sweden
In Spain: Madrid
Website: sinch.com

Good to know if you are moving

Sinch has a strong engineering hub in Madrid, Spain, offering opportunities for software engineers to work on global-scale communication platforms.
The company is publicly listed on the Stockholm Stock Exchange, providing stability and growth potential for employees.
Sinch supports a hybrid work model, allowing flexibility for international hires to balance remote and office work.
The company's culture emphasizes innovation and collaboration, with a diverse workforce representing many nationalities.
Spain's tech visa and digital nomad visa options make it easier for international professionals to relocate to Madrid for roles at Sinch.

All open roles at Sinch