Lead / Senior Software Engineer

Humankind Global Recruitment; Madrid; Presencial; EUR 72.000 - 85.000; Jornada completa

Descripción de la vacante

A leading global recruitment firm in Madrid seeks a Senior Lead Software Engineer. This experienced full-stack developer will design, develop, and enhance tools supporting global operations while mentoring junior engineers in best practices. Ideal candidates possess strong Java and Kubernetes expertise, with a focus on scalable applications and leadership.

Formación

• 5+ years of full-stack development experience with strong proficiency in Java (Spring Boot).
• Proven track record across the full software development lifecycle.
• Hands-on experience building and deploying services in Kubernetes environments.

Responsabilidades

• Act as a lead developer for in-house engineering tools.
• Design, build, and maintain scalable applications and APIs.
• Collaborate with product and platform teams for solution integration.

Conocimientos

Full-stack development

Java (Spring Boot)

Python

JavaScript (React.js, Node.js)

Kubernetes

CI / CD

Problem-solving

Herramientas

Terraform

Ansible

Helm

Descripción del empleo

Senior Lead Software Engineer

Global Engineering Team (Madrid, Malaga, Spain) Reports to: Engineering Manager

Salary - 85,000 EUROS

Summary

We are looking for a Senior LeadSoftware Engineer to join our global engineering team. This role is for an experienced full-stack developer who thrives on building applications at scale, leading by example, and mentoring others in engineering best practices. You will play a central role in designing, developing, and enhancing in-house tools that support our global business, working with modern technologies across cloud, automation, and distributed systems.

While knowledge of security engineering is a bonus, this position is primarily focused on software engineering excellence. We are seeking someone with the technical maturity, leadership qualities, and passion for engineering who can set the standard for the team.

Key Responsibilities

• Act as a lead developer for in-house engineering tools, guiding teammates on design, testing, code reviews, and best practices.
• Design, build, and maintain scalable applications and APIs, ensuring performance, reliability, and maintainability.
• Collaborate with product and platform teams to integrate and deliver solutions that support global operations.
• Provide hands‑on mentoring, fostering knowledge sharing and helping junior engineers grow their skills.
• Drive adoption of automation, infrastructure‑as‑code, and CI / CD practices to increase efficiency and consistency.
• Contribute to incident investigations when needed and play a role in improving system resilience.
• Maintain clear documentation for tools and systems, ensuring solutions are accessible and scalable for the wider business.
• Continuously research and apply new technologies and practices that raise the overall engineering bar.

Tech Stack

• Languages & Frameworks: Java (Spring Boot), Python, JavaScript (React.js, Node.js)
• APIs & Integration: REST APIs, microservices
• Infrastructure & Automation: Kubernetes, Ansible, Terraform, Helm
• CI / CD & Tooling: Git‑based pipelines, containerised services, automation frameworks

Qualifications

• 5+ years of full‑stack development experience, with strong proficiency in Java (Spring Boot) and exposure to Python and / or JavaScript.
• Proven track record across the full software development lifecycle – requirements, design, build, testing, deployment, and support.
• Hands‑on experience building and deploying services in Kubernetes‑based environments.
• Familiarity with CI / CD pipelines and automation frameworks.
• Strong grounding in software engineering principles – clean code, design patterns, modularity, and performance optimisation.
• Excellent problem‑solving skills and the ability to debug complex systems.

Why Join Us?

This is an opportunity to join a global engineering team where you’ll have the freedom to design and build tools that scale across the business. You’ll work with a modern stack, collaborate with talented engineers, and have the chance to make a tangible impact.

If you’re a senior full‑stack engineer who’s passionate about building applications, leading by example, and driving engineering maturity, we’d love to hear from you.

Apply with your most up to date CV for immediate consideration!