Senior Software Engineer

Cervin; Madrid; Presencial; EUR 60.000 - 90.000; Jornada completa

Descripción de la vacante

AiFi is seeking a Backend Software Engineer to optimize highly concurrent systems and scale our store operating systems from small to large venues. You will shape core backend microservices and collaborate with app developers and product managers to address real-world use cases and bottlenecks.

Join a platform that enables real-time analytics and scalable e-commerce efficiency, with a strong emphasis on Docker, Kubernetes, and modern backend tech, including NestJS and RESTful APIs.

Formación

• BS/MS in computer science or related field required.
• 3+ years of experience as a Software Engineer (Backend).
• 2+ years of experience using TypeScript.
• 2+ years of experience working in node.js for web applications backend.
• Highly skilled in unit testing, experience with Jest testing framework.
• Highly skilled in RESTful API design and REST API usage.
• Proficiency with data modeling, static typing, and SQL.
• Proficiency in using Docker.
• Experience with event driven or real-time systems.
• Experience with TypeScript / JavaScript backend frameworks (e.g. NestJS).
• Experience with Python, GoLang, or C#.
• Experience with Kubernetes.
• Experience with Postgres.
• Experience with Frontend Development (React, React Native) is a plus.
• Experience with Domain Driven Design, Event Sourcing and CQRS is a plus.

Responsabilidades

• Lead on optimizing our highly concurrent systems.
• Scale the store operating systems from small stores to gigantic venues.
• Make design decisions in the process of developing our core backend microservices.
• Work closely with app developers and product managers to understand the use cases and bottlenecks.
• Work with deployment engineers to ensure rapid deployment to clients.

Conocimientos

TypeScript

Node.js

RESTful API design

SQL

Docker

Kubernetes

Event driven / real-time systems

Python / Go / C#

NestJS

Frontend basics (React)

Educación

BS/MS in computer science or related field

MS or PhD in Computer Science / Computer Engineering or related field

Herramientas

Docker

Kubernetes

Postgres

MongoDB

gRPC

Descripción del empleo

AiFi is a spatial intelligence platform that helps businesses understand and operate physical spaces using real‑time AI. Built on a camera‑first, privacy‑conscious foundation, our platform transforms physical environments into actionable systems—improving operations, elevating customer experiences, and unlocking measurable business value. AiFi is building toward a future where the physical world is as searchable, observable, and understandable as the digital one.

Across grocery and convenience, venues, specialty retail, quick-service restaurants, and travel hubs, AiFi helps customers solve problems such as fraud prevention, out-of-stock and planogram optimization, 24/7 commerce enablement, no-line premium entry, omnichannel analytics, labor optimization, order accuracy, and frictionless access. With global deployments across diverse formats, AiFi is building a powerful real-world data foundation that continually improves the intelligence and adaptability of its platform.

Responsibilities

• Lead on optimizing our highly concurrent systems
• Scale the store operating systems from small stores to gigantic venues
• Make design decisions in the process of developing our core backend microservices
• Work closely with app developers and product managers to understand the use cases that we need to cover and their potential bottlenecks
• Work with deployment engineers to ensure that what you build goes as quickly as possible to the clients

Requirements

• BS/MS in computer science or related field
• 3+ years of experience as a Software Engineer (Backend)
• 2+ years of experience using TypeScript
• 2+ years of experience working in node.js for web applications backend
• Highly skilled in unit testing, experience with Jest testing framework
• Highly skilled in RESTful API design and REST API usage
• Proficiency with data modeling, static typing, and SQL
• Proficiency in using Docker
• Experience with event driven or real-time systems
• Experience with TypeScript / JavaScript backend frameworks (e.g. NestJS)
• Experience with Python, GoLang, or C#
• Experience with Kubernetes
• Experience with Postgres
• Experience with Frontend Development (React, React Native) is a plus
• Experience with Domain Driven Design, Event Sourcing and CQRS is a plus

Preferred Additional Qualifications

• MS or PhD in Computer Science, Computer Engineering or a related field
• Skilled in Kubernetes, experience with kustomize or helm
• Experience with MongoDB
• Experience with gRPC
• Experience in e-commerce software, checkout processes, payments, virtual POS or other related systems

AiFi is an equal opportunity employer committed to fostering an inclusive, diverse, and equitable workplace.

We do not discriminate on the basis of race, color, religion or belief, national origin, sex, gender identity or expression, sexual orientation, age, marital status, veteran status, disability, or any other status protected by applicable law.