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Senior Python/ AI Backend Developer

2 semanas atrás

Lisboa, Lisboa, Portugal act digital Tempo inteiro

We are looking for an experienced
Senior Python / AI Backend Developer
to join our AI development team. You will build and evolve the backend infrastructure powering a suite of specialized
AI assistants
(e.g., helpdesk support, back-office operations, and HR solutions).

This role requires strong backend engineering skills, hands-on experience with Python frameworks, and genuine interest in
AI-driven systems
.

Responsibilities:

  • Design, develop, and maintain
    robust, scalable backend services
    for AI assistants;
  • Build and manage
    secure, efficient RESTful APIs
    for data integration;
  • Ensure
    performance, reliability, observability, and data security
    across services;
  • Collaborate closely with front-end teams to deliver consistent user experiences;
  • Integrate AI-driven capabilities to enable
    automation and intelligent support;
  • Participate in agile practices (sprint planning, code reviews, retrospectives, continuous improvement);
  • Communicate technical concepts clearly to business and non-technical stakeholders.

Required Skills & Experience

  • 3+ years
    developing backend web applications in
    Python;
  • Strong experience with
    FastAPI
    and REST API development;
  • Solid understanding of backend architecture, databases, and server-side logic;
  • Experience working in an
    AI-focused development
    environment;
  • Familiarity with AI integration frameworks such as
    LangChain
    and
    LangGraph;
  • Proficiency with
    Git;
  • Growth mindset and willingness to learn new AI technologies;
  • Ability to explain technical topics to non-technical audiences;
  • English level B1 or higher.

Technical Skills Matrix (Expected Level)

  • Python —
    Advanced
  • RESTful APIs —
    Advanced
  • FastAPI —
    Advanced
  • Git —
    Advanced
  • Docker —
    Intermediate
  • Kubernetes —
    Intermediate
  • PostgreSQL —
    Intermediate
  • AI Integration Frameworks (LangChain, LangGraph) —
    Intermediate
  • Agile Development Practices —
    Intermediate

Nice to Have

  • Familiarity with
    LLMs (Large Language Models)
  • Cloud experience, preferably
    Microsoft Azure
  • Basic understanding of
    machine learning / AI concepts
  • Experience with
    Docker
    and
    Kubernetes
  • Knowledge of
    PostgreSQL
  • Previous experience in the
    banking industry
    (2+ years is a plus)