Senior Backend Developer

Citibox is a well-funded Spanish start-up that is on a mission to solve the challenges of B2C parcel delivery that carriers face today (last mile) through the mass deployment of smart mailboxes in residential buildings. It is the leading player in this space in terms of ecosystem development, based on;

• the proprietary technology it has developed (universal, open and scalable), 
• the agreements it has reached with all relevant Spanish carriers,
• the deployment of smart mailboxes, and 
• the profitability of each unit installed. 

Role Description

You will be a fundamental piece in one of our multidisciplinary Value teams in the development and improvement of our products and services, actively participating from the discovery and conceptualization phases, to the delivery, launch and monitoring phases, keeping our clients and users at the center of all decisions. 

You also will be part of our growing world-class Tech Community, where you will be a key part of the decision-making to evolve the architecture of our platform -according to the business challenges- with special attention to its scalability, reliability and maintainability.

What we expect from you: 

• Understanding the strategic objectives of the company and needs to adequate the changes on the platform & products that will produce the desired outcome.
• You are critical and proactive, proposing improvements in the way we work and organize ourselves.
• You are willing to step out of your comfort zone, without fear of being wrong.
• You are a person with a curious spirit, with an innate desire to deeply understand what happens behind the scenes and continuous learning.
• Ability to break down a big problem into smaller and simpler steps, weighing the tradeoffs of your decisions.
• Communicate all of the above in a clear, straightforward way

The role reports to the Value team Lead and the Tech Community Lead.

Who are you

• Excellent communicator, both oral and written.
• Highly organized and able to manage multiple priorities and projects effectively. 
• Logical, structured and methodical thinker with problem solving abilities.
• Inquisitive and creative, always willing to innovate and move away from the status-quo.
• A team player, receptive to ideas from others.
• Lead by example, adhering to the company’s values and behaviors.
• Adaptable with a “can-do attitude” being always positive, proactive, and energized.

Experience and Skills...

   … You need to have

• Deep knowledge applying the SOLID principles.
• 1+ year experience developing with Domain Driven Design (DDD).
• Experience developing with Hexagonal Architecture (or similar).
• REST APIs definition experience.
• Cloud based applications experience (GCP, AWS, or Azure).
• Experience working with Git.
• Experience with SQL databases.
• Proactivity and focus on scalability, reliability, and maintainability.
• Planning progressive value deliveries, anticipating the upcoming challenges.

   … It'd be nice to have 

• Good knowledge of software design patterns.
• Experience developing CI/CD pipelines.
• Experience with not-only-SQL DBs (Elastic, Mongo, …).
• Experience designing and maintaining scalable systems with large user bases.
• Experience working with hardware lifecycle products.
• Experience working in a multidisciplinary based organization, and startup environment.

What's in Citibox for you 

• The opportunity to join a start-up that is in continuous growth and development.
• Although our HQ is in Madrid, you can work almost anywhere in the world, as long as there is a good connection to join the meetings.
• Learn, train and develop both professionally and personally.
• We work together to create a strong corporate culture and values.
• Attractive remuneration, and a career plan that we will build together.
• At Citibox, this year we have 25 laboral vacation days, and your birthday is on us.
• Flexible hours, whether you're an early riser or an early sleeper.
• MacBook Pro, our goal is that from the beginning you have the best equipment and tools.