Experienced Backend Developer -Node.Js Porto

Experienced Backend Developer -Node.Js
Porto
Porto, Porto District, Portugal

At Reckon. ai, we’re on a mission to revolutionize retail through the power of AI and computer vision. Our technology automates store operations and delivers
- time insights, helping retailers and FMCG companies optimize performance, reduce waste, and create smarter, more efficient stores.

We're growing fast, and to support our expansion, we’re expanding our Engineering team with a skilled, experienced Backend Developer (Node. js) who’s passionate about building secure, scalable APIs and backend systems that integrate multiple services and handle complex
- world data.

What You’ll Do

• Design and build robust, scalable RESTful APIs and backend services using Node. js (Type
  Script).
• Model and manage structured and
  - structured data schemas (e. g. , Postgre
  SQL, Mongo
  DB ).
• Evolve our backend architecture to support high availability, modularity, and
  - term maintainability.
• Ensure
  - level security , including secure authentication flows, data validation, and protection against common vulnerabilities ( e. g. , injection, XSS, CSRF ).
• Integrate
  - party services such as payment gateways , analytics platforms , identity providers , and messaging systems.
• Implement automated testing, code reviews, observability tools, and CI / CD pipelines.
• Work
  - functionally with Product, Frontend, and Dev
  Ops teams to deliver
  -
  - end solutions.

What We’re Looking For

• 5+ years of backend development experience in Node. js , with
  - grade systems.
• Deep understanding of HTTP , REST , authentication protocols (OAuth2, JWT), and API versioning.
• Strong experience with SQL and No
  SQL databases , including performance tuning and schema design.
• Solid understanding of application security best practices , OWASP guidelines, and threat mitigation.
• Familiarity with
  - driven systems , message queues , or Pub / Sub patterns.
• Comfortable with Docker , CI / CD workflows , and cloud deployment (preferably GCP).
• Proactive, autonomous, and driven by clean, maintainable code.

Nice to Have

• Experience with Graph
  QL or g
  RPC.
• Prior integrations with systems like Twilio , Salesforce , or Hub
  Spot.
• Exposure to
  - tenant Saa
  S architecture or modular B2B platforms.
• Familiarity with monitoring and alerting tools (e. g. , Prometheus, Grafana, Sentry).
• Contributions to
  - source or
  - documented personal projects.

Why Join Reckon. ai?

• High impact : Your code powers
  - gen retail tech used daily by major players.
• Scalable architecture : Work on systems built for scale, resilience, and data integrity.
• Mission-driven : Help retailers become more efficient, sustainable, and
  - driven.

How to Apply

Send your CV or Git
Hub profile via Linked
In or reach out to us directly.

Let’s build something meaningful together.

Backend Developer • Porto, Porto, Portugal