db design

NFON is seeking a Senior Database Administrator to maintain the stability, scalability, and security of our Maria DB-based database platform supporting cloud communications. You will design highly available clusters, implement backup and HA strategies, and drive automation across virtualized and containerized environments, including Kubernetes. You will...

We Dream. We Do. We Deliver. At Merkle, a dentsu company, we power the experience economy. Whether we\'re building the next great app, running CRM at scale for global brands, delivering technology architectures that support millions of users, or providing world-class data, identity, and insights solutions, it\'s all in the name of crafting experiences that...

payabl. empowers businesses to grow through payments innovation and banking services. Our ambition is to expand our strong portfolio of global financial services we provide to businesses and make them all available in one place on our platform we call payabl.one. As a licensed financial company with principal membership with card schemes, we specialize in...

Emergn is seeking a Senior Python Developer to own a business-critical Python platform from Portugal. You will develop backend services and APIs with Python/Flask, design async processing with Celery and Rabbit MQ, and work with Mongo DB. You will debug issues, improve tests, and contribute to CI/CD and documentation in a collaborative, international team....

Payabl is seeking a QA Engineer – Fin DB to ensure the quality, stability, and reliability of our financial data and payment systems. You will own automation, API and backend testing, and collaborate with product teams to raise the quality bar across Fin DB platforms. You will build robust Playwright-based tests, design clear test cases, and help deliver...

Planet is seeking a Senior Backend Engineer to design, build, and scale high-performance backend services in a hybrid cloud environment. You will shape API design, data models, and system architecture to support modern applications and evolving workloads for a RESTful backend consumed by Angular frontends. You will implement efficient Mongo DB schemas,...

Planet is seeking a Senior Backend Engineer to design, build, and scale high-performance backend services. You will shape API design, data models, and system architecture to support modern applications in a hybrid cloud environment. You will implement RESTful APIs with Node.Js/Type Script, design Mongo DB schemas, optimize queries, and ensure scalable,...

Siemens Portugal Tech Hub is seeking a visionary Senior Solution Software Architect to lead architectural design and enterprise delivery of distributed digital platforms. You will bridge business strategy with scalable technical execution, spanning AWS and Microsoft Azure, and oversee microservices built with Golang and Angular, with data streaming via Kafka...

Click House's AI/ML Engineering team builds and operates AI features end-to-end, including the Agentic Data Stack, AI Functions, ch DB, and the in-Console copilot. We are looking for skilled software engineers to design, build, and operate products that empower agents and data scientists. Applicants should have 5+ years in production software, experience...

Design and extend production‑grade LLM applications and agentic workflows using Nest JS, XState v5, and the Open AI SDK — flows include RAG, intent detection, clarification, fulfillment, escalation, tool‑use, and human‑in‑the‑loop state machines Build and maintain the conversation-machine substrate: guard/action registries, flow validation (ajv),...

Backend Engineer We are seeking an experienced Backend Engineer who is excited to build the technical backbone of a new generation travel platform. You’ll work with Java and Spring Boot to design and implement scalable, resilient backend services, and use databases like My SQL, Mongo DB, and Elastic Search to power search, personalization, and booking...

Noesis Portugal is seeking a skilled backend developer to design, implement, and maintain Go-based services in a cloud-first AWS environment. The role emphasizes code quality, security, scalability, and collaboration within the squad. You'll work with Docker, CI/CD, databases such as Postgre SQL and Dynamo DB, and messaging systems like Kafka or SQS,...

Joom Marketplace Solutions in Lisbon, Portugal, seeks Lead Backend Developers to shape architecture and scale services. You’ll guide a backend team and contribute across Go, data structures, and system design for a high-volume marketplace. You’ll work in a global, AI-forward environment with AWS deployments and a stack including Go, Mongo DB, Kubernetes,...

Jobseurope. Io is seeking a Java Developer to design and build backend services for i Gaming internal platforms, including studio tools and admin back offices. You will own service APIs, work on scalable microservices, and deploy on Kubernetes in a fast-moving environment. Join a team that collaborates with product and operations, using AWS/Azure/GCP and...

Nox Health in Porto, Portugal, is seeking a Lead Software Engineer who loves balancing high-level system design with hands-on coding. In this role you will split your time 50/50 between architecture and execution. You will mentor Scrum teams, translate PRDs into TDDs, and implement scalable microservices on AWS using Java/Kotlin, with Postgre SQL and Mongo...

Glow Up Kuwait seeks a Senior Developer to join our team in Faro, Portugal. You will design, implement, and test software across platforms, partnering with project managers and fellow developers to deliver robust solutions. The ideal candidate has 5+ years of experience, strong Java/C++/Python skills, and hands-on database experience with My SQL or Mongo DB....

Fyld, a Portuguese IT consulting company, is seeking a Node.Js Developer with at least 3 years' experience to design, build, and deploy scalable applications. You will work with Express.Js, RESTful APIs, and frontend basics (HTML, CSS, Java Script, React) while collaborating with cross-functional teams in an Agile environment. Strong knowledge of Mongo DB/My...

Fyld, a Portuguese IT services consultancy, seeks a Node Developer to build and deploy scalable Node.Js applications. You will design RESTful APIs, work with databases like Mongo DB and Postgre SQL, and collaborate closely with front-end teams using React and modern web tech. Ideal candidates have 3+ years in Node.Js, experience with Express.Js, and a strong...

Main Tasks And Responsibilities Noesis is looking for professionals with the following profile: Develop new requirements and projects in a distributed system, including technical solution design; Perform functional analysis and produce documentation; Analyze and resolve bugs and defects. Profile Degree in Computer Science or similar; Minimum of 5 years of...

CI&T is seeking a Senior Data Engineer to design and industrialize scalable data pipelines. You will focus on dbt workflows, data contracts, and reliable data for rule compliance across countries and segments. You will work with Python, SQL, Duck DB, and Postgre SQL in Azure environments. You will collaborate with cross-functional teams to ensure data...