511 Empregos para Back End - Portugal

About DataHow

DataHow is on a mission to help biopharmaceutical companies create better drugs, faster. Think about mRNA vaccines, cell/gene therapy, personalized medicine, etc.

To do so, we are developing a platform that will allow them to analyze their data, plan new experiments in the lab, simulate and predict their result, and optimize their outputs.

About the Role:

As a backend developer at DataHow, you’ll be involved in a range of critical responsibilities, including:

• Backend Development : Design, develop, test, and maintain server-side applications, focusing on performance, scalability, and reliability. Utilize modern programming languages and frameworks to build robust services that drive the core functionality of our platform.
• Domain Modeling : Apply clean architecture and domain-driven design principles to model and encapsulate business logic effectively, fostering a robust and adaptable software ecosystem.
• API Design : Architect and implement RESTful APIs that are scalable, well-documented, and easy to consume, enabling seamless communication between frontend and backend systems.
• Kubernetes Integration : Collaborate with our infrastructure engineers to deploy, manage, and scale backend services using Kubernetes, ensuring high availability, fault tolerance, and efficient resource utilization within a cloud-native environment.
• Code Reviews : Take part in code reviews, providing constructive feedback and ensuring best practices are followed.
• Security : Contribute to the security of our platform by implementing secure coding practices and participating in security reviews.

Qualifications:

• A strong university degree (minimum BSc or equivalent) in computer science, software engineering, or a related field.

Key Technologies:

• RESTful APIs, Micro-services, Go, Rust, Python, Linux, Docker containers, Kubernetes, MongoDB, Redis, MinIO/S3

This role is a good fit for you if

• You bring experience, pragmatism, composure, and positivity to interactions with other teams and people in the company.
• You’re comfortable creating solutions for our current challenges that are also adaptable for future needs; our needs are evolving rapidly as we scale.
• You are a code polyglot and not afraid of reviewing and contributing code outside of your competence field.
• You have experience with DDD and Clean Architecture, applying structured methodologies to ensure scalable, maintainable software solutions.
• You get that code doesn’t matter unless the rest of the team knows how to use it. You have a habit of writing guides, docs, and frameworks so the wheels keep turning when you’re not online.
• You understand that tools are not magical, there is always a balance between benefits and costs, and, at the end of the day, methodology matters the most.

How we work

• We’re a small and young team that is deeply technical.
• We’re mostly remote, with team members in Switzerland, Portugal, and Italy. However, we do have offices in Zurich and Lisbon and meet in person at least bi-yearly.
• Most of our team communication, customer communication, and documentation are in writing. We are a global company, but most of our communication is in English, and clear writing in English is essential.

CELFINET, A Cyient Company is currently looking for qualified candidates to fill Junior/MidLevel Backend Developer positions.

We are a mobile networks engineering provider, offering a suite of outstanding Products that increase efficiency in network management as well as delivering Expert Services for Mobile Operators. We are a trusted technology partner to some of the world’s leading mobile operators, enabling them to extract maximum value from their Radio Access Network.

We offer a family of proprietary software solutions and a suite of engineering services that bring end-to-end values to mobile operators. The foundation for our engineering solutions is our VISMON software environment, a virtualized advanced radio network management platform.

Responsibilities and duties:

The selected candidate will join an experienced team to jointly develop software in the Telecom business using highly innovative Technology and Methodologies.

You will be responsible for designing and implementing new features regarding the current company solutions.

Among other, the main responsibilities will be the following:

· Contribute to the definition and implementation of the best practices and tools regarding project management and software development.

· Comply with the established deadlines and requirements assuring superior code quality.

· Be part of development team, participating in product development meetings.

· Participate in the support and maintenance of Celfinet applications.

· Develop support documentation regarding the corrective/ progress of Celfinet applications.

Requirements:

· Skills and experience in Python and the ecosystem surrounding it.

· Concepts of containerization, containers and container management systems.

· Concepts of distributed systems, messaging, integration patterns.

· Knowledge or experience working with relational databases (SQL Server or PostgreSQL preferred)

· Knowledge or experience working with non-relational databases (MongoDB or ElasticSearch preferred)

· (Concepts) Experience and understanding of software development concepts and tools like:

o Working with Source control tools (git preferred) with distributed teams.

o Continuous Integration and Continuous Deployment.

o Automatic testing.

o Experience with Azure DevOps preferred.

· Generally speaking, motivated people that can work collaboratively within a team, maintaining high working standards. Required English speaking/writing/understanding.

CELFINET, A Cyient Company, offers its employees a comprehensive compensation package and the opportunity to work in a uniquely challenging environment within a highly motivated team. Submit today your application to if you are the candidate we are looking for!

About DataHow

DataHow is on a mission to help biopharmaceutical companies create better drugs, faster. Think about mRNA vaccines, cell/gene therapy, personalized medicine, etc.

To do so, we are developing a platform that will allow them to analyze their data, plan new experiments in the lab, simulate and predict their result, and optimize their outputs.

About the Role:

As a backend developer at DataHow, you’ll be involved in a range of critical responsibilities, including:

• Backend Development: Design, develop, test, and maintain server-side applications, focusing on performance, scalability, and reliability. Utilize modern programming languages and frameworks to build robust services that drive the core functionality of our platform.
• Domain Modeling: Apply clean architecture and domain-driven design principles to model and encapsulate business logic effectively, fostering a robust and adaptable software ecosystem.
• API Design: Architect and implement RESTful APIs that are scalable, well-documented, and easy to consume, enabling seamless communication between frontend and backend systems.
• Kubernetes Integration: Collaborate with our infrastructure engineers to deploy, manage, and scale backend services using Kubernetes, ensuring high availability, fault tolerance, and efficient resource utilization within a cloud-native environment.
• Code Reviews: Take part in code reviews, providing constructive feedback and ensuring best practices are followed.
• Security: Contribute to the security of our platform by implementing secure coding practices and participating in security reviews.

Qualifications:

• A strong university degree (minimum BSc or equivalent) in computer science, software engineering, or a related field.

Key Technologies:

• RESTful APIs, Micro-services, Go, Rust, Python, Linux, Docker containers, Kubernetes, MongoDB, Redis, MinIO/S3

This role is a good fit for you if

• You bring experience, pragmatism, composure, and positivity to interactions with other teams and people in the company.
• You’re comfortable creating solutions for our current challenges that are also adaptable for future needs; our needs are evolving rapidly as we scale.
• You are a code polyglot and not afraid of reviewing and contributing code outside of your competence field.
• You have experience with DDD and Clean Architecture, applying structured methodologies to ensure scalable, maintainable software solutions.
• You get that code doesn’t matter unless the rest of the team knows how to use it. You have a habit of writing guides, docs, and frameworks so the wheels keep turning when you’re not online.
• You understand that tools are not magical, there is always a balance between benefits and costs, and, at the end of the day, methodology matters the most.

How we work

• We’re a small and young team that is deeply technical.
• We’re mostly remote, with team members in Switzerland, Portugal, and Italy. However, we do have offices in Zurich and Lisbon and meet in person at least bi-yearly.
• Most of our team communication, customer communication, and documentation are in writing. We are a global company, but most of our communication is in English, and clear writing in English is essential.

We're looking for the special, unique and amazing YOU

We're looking for the special, unique, and amazing YOU

@ KCS IT, we seek those who stand out , those who always strive to be better and fight for it . We value individuals who share our core principles:

Dedication

Energy

Integrity & Transparency

Flexibility

Trust & Honesty

Hard Work & Proactivity

Teamwork

At KCS IT, we champion equality and embrace diversity . We foster a safe, inclusive environment where opportunities are equal for all

We do not discriminate based on age, ethnicity, sexual orientation, gender, disability, or any factor other than merit.

All applications with relevant skills are welcome

We are looking for an Amazing: Java with Golang developer

Seniority: Middle-Senior

Type of position: Hybrid

The amazing you, will have:

• Proven experience with
  Java
  and
  Golang (Go)
  in backend development.
• Strong understanding of
  REST API
  design and implementation.
• Experience working in
  Agile/Scrum
  methodologies.
• Hands-on experience with
  Jenkins
  and
  CI/CD pipelines
  .
• Knowledge of software engineering best practices, including testing and version control (Git).
• Fluent in English.

Nice to Have (Plus)

• Experience with
  Python
  for scripting or backend development.
• Familiarity with containerization (Docker, Kubernetes) and cloud platforms (AWS, GCP, Azure).
• Knowledge of relational and non-relational databases.
• Understanding of monitoring tools and performance tuning.

Why should you become part of our family?

• You can develop a career that fits you
  : your career development is personalized, taking in consideration your needs and goals from a short to long term
• Interesting Challenges Ahead
  : you can work for several clients from different sectors of activity
• Free training programs
  : Our training and certification programs in languages, tech, behavior and business will help you to reach your full potential faster
• International projects in Benelux:
  you can gain international experience in Benelux and balance a new way of living with work
• Type of projects
  (depending on the project you might find one of this types of projects):
• In hybrid Systems:
  Is important to balance work with socialization, that´s why a hybrid system works for us and for you
• Full Remote projects:
  If you want to work while you enjoy the comfort of your home
• Full Onsite projects:
  if you prefere the company of your colleagues
• Take care of your well-being:
  Enjoy our free nutrition, psicologist, general medicine appointments and our yoga and personal training days… all remote

Who are we?

Founded in 2008 and based in Lisbon, KCS IT is a consulting company in the field of Information Technology and Services, focused on creating value for our clients through three main areas: Consulting, Outsourcing, Inovation and Training. Our commitment to talent development is unmistakable in the recent opening of the Porto, Leiria and Azores hubs, which aims to develop technology for the national and international market. Since 2018 we have been elected one of the 10 major companies in the "Index of Excellence", an initiative that aims to reward organizations that invest most in the development and satisfaction of their employees.

Overview:

The shift toward sustainable, intelligent transportation demands a reliable digital backbone. Our technology powers electric vehicle charging networks and connects seamlessly with multimodal transport solutions. We're looking for an experienced engineer with strong architectural skills to guide our backend systems and help shape the future of mobility.

What will you do?

• Design and evolve the core backend of our Charging Management Platform
• Lead end-to-end technical initiatives, from system architecture to rollout
• Set engineering standards, review critical decisions, and mentor fellow developers
• Work hand-in-hand with product, engineering leads, and cross-functional teams
• Ensure our services are secure, robust, and capable of scaling with demand
• We follow Agile principles (Scrum), value thoughtful execution, and prioritize clean, maintainable solutions over short-term workarounds

What are we looking for?

• 8+ years of hands-on software engineering experience, primarily in backend development
• Degree in Computer Science (or comparable professional expertise)
• Demonstrated leadership in architecture and technical mentoring
• Advanced knowledge of
  Python
  and
  Django
  , with strong API and platform experience
• Clear communicator who can lead discussions, challenge assumptions, and drive consensos
• Portugal based and fluent in English
• AWS, Terraform, Ansible, Grafana
• Understanding of EV and mobility standards (e.g., OCPI, OCPP)
• Exposure to modern frontend technologies (JavaScript/TypeScript, HTML, CSS)

What can you expect from us?

• A permanent job contract for a long term project;
• Tech equipment + SIM Card + personal smartphone;
• Health and Life Insurance;
• Social events and team buildings;
• The commitment of letting you grow with us, and be rewarded accordingly;
• A dynamic and young team that will be always there to support you;
• Training in the latest technologies;
• Coffee, fruits, snacks and a warm welcoming when you pass by the office.

A PrimeIT é uma empresa de referência, com mais de 18 anos de experiência na prestação de serviços tecnológicos de IT, Telecomunicações e Engenharia. Especializados em Team Extension, Managed Services, Custom Software e Nearshore, contamos actualmente com uma equipa de mais de 2350 profissionais que colaboram em projectos nacionais e internacionais nas mais diversas tecnologias.

Procuramos um Consultor para
projeto híbrido em Lisboa
que integre em uma empresa no setor público, como
Back-end Developer.

Responsabilidades:

• Participar no desenho técnico e no desenvolvimento dos componentes backend da plataforma
• Desenvolver APIs para consumo interno e externo, garantindo a segurança, escalabilidade e performance
• Implementar integrações com múltiplas fontes de dados(internas e externas)
• Assegurar a conformidade com os requisitos de segurança (gestão de acessos, registo de alterações e mecanismos de autenticação)
• Colaborar com as equipas de frontend e de análise funcional para garantir a coesão da arquitetura técnica
• Participar ativamente em code reviews e na melhoria contínua do código
• Produzir documentação técnica do código e das APIs desenvolvidas

Requisitos
:

• Formação superior em Engenharia Informática, Ciências da Computação ou área similar
• Experiência mínima de 3 anos em desenvolvimento backend de soluções web
• Experiência em desenvolvimento de APIs RESTful e integração de serviços externos
• Experiência mínima de 3 anos em aplicações web, incluindo desenvolvimento das funcionalidades server side e Base de Dados
• Experiência com ambientes cloud
• Experiência mínima de 2 anos com .NET Core e Entity Framework Core
• Experiência com Docker containers, incluindo criação, configuração e troubleshooting
• Familiaridade com Caddy, NGINX ou outro reverse proxy, incluindo configuração e integração com aplicações web
• Familiaridade com práticas DevOps e metodologias Agile (SCRUM)
• Domínio de ferramentas de controlo de versões, nomeadamente Git
• Conhecimentos sólidos em bases de dados relacionais (PostgreSQL, MySQL) e não relacionais (MongoDB)
• Conhecimentos de segurança de aplicações web e proteção de dados
• Fluente em Português e Inglês;

O que oferecemos?

• Integração numa empresa de dimensão internacional que cresce diariamente;
• Formação constante nas mais recentes e inovadoras tecnologias – Prime Academy;
• Acompanhamento e progressão de carreira.

Envia o teu CV para e junta-te à equipa PrimeIT

Transformação Digital

Back-End Developer

Lisboa | <2 anos de experiência

A LBC é uma empresa de consultoria estratégica, transformação digital e de desenvolvimento de talento, com experiência em mais de 1.200 projetos em 18 países, 17 setores e 20 entidades multilaterais como o Banco Mundial, Programa das Nações Unidas para o Desenvolvimento, União Europeia, Banco Africano de Desenvolvimento, entre outros.

Requisitos

• Formação superior em Engenharia Informática, Ciências da Computação ou área similar
• Experiência mínima de 3 anos em desenvolvimento backend de soluções web
• Experiência em desenvolvimento de APIs RESTful e integração de serviços externos
• Experiência mínima de 3 anos em aplicações web, incluindo desenvolvimento das funcionalidades server side e Base de Dados
• Experiência com ambientes cloud
• Experiência mínima de 2 anos com .NET Core e Entity Framework Core
• Experiência com Docker containers, incluindo criação, configuração e troubleshooting
• Familiaridade com Caddy, NGINX ou outro reverse proxy, incluindo configuração e integração com aplicações web
• Familiaridade com práticas DevOps e metodologias Agile (SCRUM)
• Domínio de ferramentas de controlo de versões, nomeadamente Git
• Conhecimentos sólidos em bases de dados relacionais (PostgreSQL, MySQL) e não relacionais (MongoDB)
• Conhecimentos de segurança de aplicações web e proteção de dados
• Fluente em Português e Inglês

Principais responsabilidades

• Participar no desenho técnico e no desenvolvimento dos componentes backend da plataforma
• Desenvolver APIs para consumo interno e externo, garantindo a segurança, escalabilidade e performance
• Implementar integrações com múltiplas fontes de dados (internas e externas)
• Assegurar a conformidade com os requisitos de segurança (gestão de acessos, registo de alterações e mecanismos de autenticação)
• Colaborar com as equipas de frontend e de análise funcional para garantir a coesão da arquitetura técnica
• Participar ativamente em code reviews e na melhoria contínua do código
• Produzir documentação técnica do código e das APIs desenvolvidas

O que oferecemos

• Uma oportunidade de trabalhar numa empresa líder e inovadora (premiada pela Revista Exame na categoria Digital Leaders 2023 e Melhores Empresas para Trabalhar)
• Desenvolvimento contínuo de competências e carreira
• Uma cultura de trabalho colaborativo e de apoio
• Remuneração competitiva e pacote de benefícios

At CONTISYSTEMS we believe that each person contributes in a unique way so that we can continue to be recognized as a brand that is synonymous with ideas and efficiency.

Our people are passionate about the challenge and focused on results.

We are proof that creativity, dreams, experience, joy and ambition can all be characteristics of the same person. Become one of us.

We are looking to strengthen our team with a Back-End Developer with the following profile:

Main responsibilities:

• Develop, maintain and optimize services and APIs.
• Implement good architectural practices and design patterns in the back-end.
• Ensuring system integration and efficient communication with the front-end and other platforms.
• Ensuring the security, scalability and performance of applications.
• Collaborate with multidisciplinary teams (front-end, QA, DevOps, product).

Technical requirements:

• Solid experience in ASP.NET / C#.
• IIS configuration and management.
• Additional experience in (Express or NestJS) valued.

Good practices valued:

• Application of design patterns and clean code principles in the back-end.
• Development and maintenance of REST and/or GraphQL APIs.
• Implementation of authentication and security mechanisms.

Personal profile:

• Ability to analyze and solve complex problems.
• Attention to detail and a focus on quality and safety.
• Collaborative spirit and clear communication in a team context.

Conditions:

• Dynamic and collaborative work environment, with a focus on sustainability and technology;
• Competitive remuneration, aligned with objectives and results;
• Various opportunities for professional development;
• Integration into a leading company in the sector.
• Health insurance.

Applications must be submitted using the form below.

In line with our principles of inclusion, diversity and non-discrimination, the analysis of applications will be carried out respecting the principles of equal opportunities and in accordance with our Data Protection and Privacy Policy.

Only selected candidates will be contacted and all other applications will be stored in the system for a period of one year, unless we are informed otherwise.

A PrimeIT é uma empresa de referência, com 19 anos de experiência na prestação de serviços tecnológicos de IT, Telecomunicações e Engenharia.

Especializados em Team Extension, Managed Services, Custom Software e Nearshore, contamos actualmente com uma equipa de mais de 2350 profissionais que colaboram em projectos nacionais e internacionais nas mais diversas tecnologias.

Objetivo:

Desenvolvimento backend com foco em Go.

Principais Atividades:

Desenvolvimento e manutenção de aplicações de grande escala, com foco em performance, escalabilidade e integração entre sistemas.

Os desenvolvimentos serão maioritariamente em Go, com utilização de RabbitMQ para comunicação assíncrona entre serviços e MongoDB como base de dados não relacional.

Procuramos alguém com:

• Experiência sólida em Go;
• Experiência com RabbitMQ e MongoDB;
• Conhecimentos de PHP (nativo e Laravel), Elasticsearch, JavaScript e Vue 3;
• Experiência em arquiteturas baseadas em microsserviços.

O que oferecemos?

• Seguro de Saúde e outros benefícios.
• Plano de Formação e Desenvolvimento.
• Oportunidades de crescimento profissional.
• Ambiente dinâmico e colaborativo.
• Possibilidade de integrar projetos internacionais.