Wizeline, a global AI-native technology solutions provider, develops cutting-edge,

AI-powered

digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a general community of innovators, we foster a culture of

growth, collaboration,

and

impact.

With the right people and the right ideas, there’s no limit to what we can achieve

Sounds awesome, right? Now, let’s make sure you’re a good fit for the role:

Key Responsibilities

Architectural Trade-offs:

Evaluate and articulate the trade-offs of asynchronous vs. synchronous communication, decoupling strategies, fault isolation, and scalability in distributed environments.

Reliable Messaging & Data Consistency:

Design and implement mechanisms that guarantee data consistency across distributed boundary lines (addressing challenges such as dual-writes, transactional integrity, and message handling guarantees).

Resilience & Failure Recovery:

Engineer robust fault-tolerance strategies beyond basic retries, ensuring systems gracefully handle partial failures, network partitions, and cascading outages.

2. System Design & Technical Communication

End-to-End System Design:

Lead system design initiatives for complex banking scenarios with minimal supervision—taking raw business requirements and turning them into scalable architectures.

Visual & Verbal Clarity:

Translate abstract concepts into structured architectural diagrams, presenting clear design rationales during technical refinements and discussions.

3. Software Delivery & Engineering Standards

Production Code Quality:

Write, maintain, and test high-throughput,



secure backend applications using modern

.NET / C# .

Cloud & Platform Operations:

Work with distributed cloud infrastructure, containerized environments, and continuous delivery pipelines to ensure reliable deployments and system observability.

Testing Strategies:

Build comprehensive testing suites tailored for distributed systems, ensuring reliability across integration boundaries and asynchronous workflows.

Must-have Skills

Distributed Cloud Systems:

Strong overall experience engineering applications on modern cloud platforms (e.g., Azure, AWS, or GCP), with practical familiarity with containerization, cloud networking, infrastructure provisioning, and continuous integration/deployment.

Asynchronous & Messaging Concepts:

Deep practical understanding of distributed messaging systems, event streams, and the operational challenges of managing decoupled services.

Language & Communication (Strict Requirement):

English C1 (Fluent) . You must be able to express technical ideas fluidly on the spot, navigate ambiguous architectural questions, and collaborate seamlessly in real-time technical refinements.

Nice-to-have:

AI Tooling Proficiency : Leverage one or more AI tools to optimize and augment day-to-day work, including drafting, analysis, research, or process automation. Provide recommendations on effective AI use and identify opportunities to streamline workflows.

AI-Assisted Workflow:

Practical experience integrating modern AI development tools into your daily workflow to optimize productivity.

What we offer:

Commitment to Professional Development

Flexible and Collaborative Culture

Total Rewards

*Specific benefits are determined by the employment type and location.

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📌 Senior Software Engineer (Madrid)
🏢 Wizeline
📍 Madrid