18 melhores vagas de back end developer (Contratando agora!)

Software Engineer (Internal Products)
Efficio Consulting —Lisboa
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Software Engineer (Internal Products)

Efficio Consulting -
Lisboa

Candidate-se agora

Detalhes da oferta

Há 8 dias

Qualificações

Mestrado

Descrição completa da oferta

Efficio is a leading international procurement and supply chain consultancy, with offices and clients across Europe, North America, and the Middle East. We are a diverse and growing team — currently c.1,200 people — representing more than 50 different nationalities and speaking over 30 languages.

With Efficio, you will enjoy the benefits of working with an established management consultancy that still maintains its entrepreneurial spirit and close-knit community. We have almost doubled in size over the last few years, and we do not plan on stopping anytime soon. We are looking for the future leaders of Efficio who will continue to invest in what matters to us: supporting our clients' success, celebrating creativity, and helping our team to follow their passions and ambitions.

We are proud of our company culture — collaborative, dynamic, down to earth, and fiercely international. Our teams devote the time to connect, learn, and socialise across project teams and offices globally.

What will you be doing?

We are seeking a skilled and motivated Software engineer to join our internal product teams. These teams build software tools that empower our Management Consultants to deliver faster, more precise conclusions and actionable recommendations in Procurement, Sourcing, and Spend Analytics.

As a Software Engineer, you will collaborate with cross-functional teams working on products in three key areas:

Analytics Enablement— enabling insightful and interactive analytics, including embedded analytics with Sigma Computing and Apache Superset.

Knowledge Sharing — streamlining access to critical resources and collaboration across consulting teams.

Strategic Sourcing Automation — driving efficiency and automation in sourcing strategies, increasingly augmented by LLM-based agents.

Our primary internal product stack is Python / Django on AWS (ECS, RDS, S3, SES, ECR), deployed through GitLab CI/CD. The user-facing layer is server-rendered Django templates with Tailwind CSS and HTMX for interactive partials. Efficio also runs other products teams written in Go, PHP, and other stacks, and cross-team contribution is encouraged.

This role is based in Lisbon, working with teams located in both Portugal and the UK.

Design, develop, and maintain back-end services, APIs, and databases that support our internal products.

Collaborate with front-end developers, data engineers, and product managers to deliver end-to-end solutions, including HTMX-driven server-rendered UIs and embedded analytics.

Implement best practices for code quality, scalability, and performance optimisation — including type checking, linting, and code review.

Work within an Agile framework, participating in sprints and daily standups across the Lisbon and UK teams.

Ensure security and data protection measures are embedded in development processes, particularly around multi-tenant data isolation.

Troubleshoot, debug, and upgrade software as needed; investigate production issues across application, queue, and infrastructure layers.

Contribute to continuous integration and delivery pipelines (CI/CD) on GitLab.

Document technical processes, designs, and decisions effectively.

Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field.

Strong proficiency in Python, ideally with Django, for production back-end work. Familiarity with Go or PHP is valued — Efficio runs polyglot product teams and cross-team contribution is encouraged.

Experience working with AWS services (e.g. ECS, RDS, S3, ECR). Exposure to other cloud providers is welcome.

Strong understanding of relational database design and management (PostgreSQL primarily, MySQL where legacy systems require it), including schema design, indexing, and migrations.

Experience with multi-tenant SaaS architectures and modular monoliths (multiple Django apps sharing a single Postgres instance with per-tenant scoping).

Experience designing and consuming RESTful APIs.

Experience with background task queues and scheduled jobs (Celery + RabbitMQ, or equivalent).

Familiarity with async and event-driven patterns (background tasks, webhook handlers).

Knowledge of software development best practices: version control with Git, code review, automated testing, coding standards.

Problem-solving skills with a focus on building scalable and reliable systems.
Strong communication and collaboration skills in a cross-office, cross-functional environment.

LLM and agent application development (LangChain, LangGraph, OpenAI / Anthropic APIs, tool use, prompt caching).

HTMX-driven UIs and server-rendered Django templates (the team prefers partial swaps over SPA frameworks for internal tools).

Familiarity with embedded analytics platforms.

DevOps practices and tools: Docker, AWS ECS, GitLab CI/CD.

Understanding of GitOps and continuous deployment techniques.

Familiarity with the uv Python package and project manager.

Familiarity with front-end technologies (Tailwind CSS, plain JS) to better integrate APIs.

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back end developer vagas

Software Engineer (Internal Products)

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