Senior API Engineer

Description

The company offers business accounts, hedging and financing on one platform, aimed at helping businesses run and grow across borders. Founded in 2009, it is a fintech with more than 2,000 staff in nearly 70 cities.

This is a Madrid office role on a hybrid model: 4 days in the office and 1 day from home.

You will work on the API team, scaling the main web application and building tools and processes that let product teams ship features quickly and on their own while keeping the customer experience consistent.

The company wants people who ask hard questions, make decisions based on data and care most about solving customer problems. You should enjoy learning and stay curious. You are not tied to one language, framework or tool, but you hold clear views on which tools fit the hardest problems, and you stay open to changing them.

The company's platform streamlines and manages global cash flow, and the product evolves continuously to support clients at every stage of growth.

Roles span business development and engineering across the company's technology teams.

The company is committed to inclusion and does not tolerate discrimination.

Applications are accepted only through official company channels. Recruiters will only contact you from an official company email domain, and the company will never ask you to pay at any stage of recruitment. Report anything suspicious.

AI tools help with administrative steps in recruitment, but every hiring decision is made by people.

Responsibilities

• Help build the next version of the platform's channels, covering both new products and the upkeep of existing ones.
• Work with your teammates and engineering leads to design new services and components through the company's Request For Comments (RFC) process.
• Under the 'You build it, you own it' approach, own the products you create, including their ongoing maintenance.
• Build and run your own services, containerising your code and adding monitoring and alerting.
• Write code that can be tested, with thorough unit and integration test coverage.
• Use the CI/CD pipelines and infrastructure-as-code tools that deploy services and infrastructure, and occasionally change them.
• Mentor junior engineers and help build a culture of technical excellence, continuous learning, collaboration and innovation, setting a good example in your own work.
• You may be asked to be on call at times.

Requirements

• A bachelor's or master's degree in computer science or a related field, or equivalent experience.
• 5+ years of software development experience, including a record of building high-performance, client-facing web applications.
• Working knowledge of algorithms, object-oriented and functional design, and established best practices.
• Experience with Python, Django, PostgreSQL, Redis and REST APIs.
• Experience with Docker, Kubernetes, Terraform and AWS.
• Experience with IAM frameworks and related tools such as Keycloak.
• Strong grasp of system architecture, API design and scalable services, including monitoring, alerting and integrating complex external systems.
• Strong knowledge of Linux, cloud infrastructure, networking and databases.
• Working proficiency with Git.
• Excellent English communication and collaboration skills for working across international teams.

Conditions

Madrid office, hybrid: 4 days in the office and 1 day working from home.

You may be asked to be on call at times.

The company welcomes applicants from all backgrounds and does not tolerate discrimination.

Benefits

• A competitive salary and benefits package.
• A discretionary performance-based bonus.
• Support for continued personal development through training and certification.
• The company is friendly to open source, following open source principles in its internal projects and encouraging contributions to external ones.