Senior .Net Developer

Brix It; Lisboa; Híbrido; EUR 40 000 - 60 000; Tempo integral

Resumo da oferta

A leading technology company in Lisbon is looking for a Senior .NET Developer to work on scalable digital solutions. The role includes developing systems in .NET Framework and .NET Core, improving legacy systems, and designing microservices-based solutions. Ideal candidates will have advanced skills in C#, strong experience with legacy maintenance, and knowledge of SQL Server and NoSQL databases. Offered as a long-term freelance contract with a hybrid work model.

Serviços

Competitive hourly rate

Long-term freelance contract

Stable workload (160h/month)

Qualificações

• Advanced experience in C#, .NET Framework, and .NET Core.
• Proven experience with legacy systems maintenance.
• Experience designing microservices architectures and event-driven systems (Kafka/Event Hub).
• Strong knowledge of SQL Server/MySQL and NoSQL databases (MongoDB, CosmosDB).
• Familiarity with CI/CD pipelines and design patterns (DDD, CQRS).

Responsabilidades

• Develop and maintain systems in .NET Framework and .NET Core.
• Improve and maintain legacy systems ensuring stability and scalability.
• Design and implement microservices-based solutions using Kafka as an Event Hub.
• Implement and maintain Azure Functions and other serverless solutions.
• Collaborate with the architecture team to define standards and best practices.

Conhecimentos

C#

.NET Framework

.NET Core

microservices

event-driven systems

SQL Server

NoSQL databases

Azure

Kafka

Angular

Ferramentas

Docker

Kubernetes

Descrição da oferta de emprego

We are looking for a Senior .NET Developer to join a long-term international project and work on building scalable, high-impact digital solutions. This is a great opportunity for a professional who enjoys working with modern architectures, event-driven systems, and cloud technologies.

What You’ll Do

• Develop and maintain systems in .NET Framework and .NET Core .
• Improve and maintain legacy systems ensuring stability and scalability.
• Design and implement microservices-based solutions , using Kafka as an Event Hub.
• Work with both NoSQL and relational databases to build robust data solutions.
• Implement and maintain Azure Functions and other serverless solutions.
• Write unit and integration tests , perform code reviews, and enforce best practices.
• Collaborate with the architecture team to define standards and best practices.
• Support the frontend team with Angular -based applications (React knowledge is a plus).

What We’re Looking For

• Advanced experience in C#, .NET Framework, and .NET Core .
• Proven experience with legacy systems maintenance .
• Experience designing microservices architectures and event-driven systems (Kafka/Event Hub).
• Strong knowledge of SQL Server/MySQL and NoSQL databases (MongoDB, CosmosDB).
• Familiarity with CI/CD pipelines, design patterns (DDD, CQRS) , and Docker/Kubernetes (nice to have).
• Must be based in Spain or Portugal with knowledge of Spanish or Potuguese

Why Join Us?

• Long-term freelance contract with stable workload (160h/month).
• Work with a multinational tech team on a cutting-edge product.
• Competitive hourly rate
• Hybrid in Lisbon

Mid Senior Fullstack Developer (.NET + Angular)

Software Engineer

1200-629 Lisboa, Lisboa LUZA PT/HITO Solutions

Job Title: Software Engineer Location: Lisbon, Portugal Work Regime: Full-time & Hybrid (2x to 3x office days) Overview / Summary: We are looking for a Software Engineer (.NET) with strong experience in event-driven architectures, event sourcing, and data streaming. The role involves developing and maintaining microservices, implementing reliable event-driven solutions.Responsibilities and Tasks: Very good knowledge of .NET Core (ideally version 6 or above)Implement event-driven solutions, including producing and consuming events, handling failures, and ensuring reliability (at-least-once delivery, retries, idempotency). Work with data streaming technologies such as Kafka Streams, ksqlDB, or Spark Streaming.Operate within Azure cloud environments and contribute to scalable, reliable architecture designs.RequirementsMandatory Requirements: Very good knowledge of .NET Core (ideally version 6 or above)Experience with APIs and microservices developmentUnderstanding of SOLID, DDD (Domain-Driven Design) or Clean ArchitectureExcellent understanding of relational databases and Entity FrameworkExperience with Azure or other cloud platformGit knowledge (preferably Azure DevOps)Kafka, KubernetesBenefitsImportant :Our company does not sponsor work visas or work permits. All applicants must have the legal right to work in the country where the position is based.Only candidates who meet the required qualifications and match the profile requested by our clients will be contacted.#VisionaryFuture - Build the future, join our living ecosystem!

Embedded Software Engineer

Embedded Software Engineer

FOSSA Systems is a leading space engineering and telecommunications company with +40 employees, specializing in developing and deploying IoT satellite solutions for remote asset management. Leveraging advanced miniaturization and mass production techniques, FOSSA has launched 20 satellites and is actively deploying a groundbreaking satellite constellation to deliver cost-effective, cutting-edge connectivity solutions.

With headquarters in Madrid and an R&D centre in Lisbon, FOSSA Systems is at the forefront of innovation in satellite manufacturing, operations, and IoT connectivity.

Who are we looking for?

We are seeking an Embedded Software Engineer to join our dynamic team in Lisbon. In this role, you will design, develop, and test FOSSA’s next-generation IoT nodes and modules. These devices will collect sensor data and transmit it via our satellite network and/or cellular connectivity, enabling seamless communication for remote assets.

Responsibilities:

• Develop and program microcontrollers (e.g., ESP32) for IoT devices.
• Design and implement embedded software libraries.
• Define state machines and flow diagrams for system logic.
• Execute software verification and validation campaigns.
• Work with real-time operating systems (FreeRTOS).

Profile:

• Graduate in telecommunications, industrial or electronics engineering.
• 1 to 3 years of minimum related experience. (Development of related personal projects will be considered as experience)
• Experience in embedded software development (C/C++, Python).
• Experience in the development of firmware for low power consumption devices.
• Experience working on GitHub or other code repositories.
• Personal software related projects.
• Full professional proficiency in English.
• Educational MSc level.

Why FOSSA?

FOSSA is a fast growing, revolutionary and dynamic company that works every day to find the latest technology on the market and make wonderful and functional things with it.

We trust each and every one of our employees and give them the space to contribute ideas, to grow, to investigate, to try and learn from their mistakes.

We are a company that believes in equal opportunities, all applications will be considered and no discrimination for any reason will be tolerated.

Location: Lisbon, metropolitan area

Hybrid Work

Full Time

Java Software Engineer

With just over 7 years of experience in the Portuguese market, we share our DNA with more than 200 workers and position our offer according to 3 lines of service:

• Strategy (Outsourcing, NeXel, Team as a Service, Tech Academies);
• Nearshore.

In ADENTIS, we focus on PEOPLE. This is our emotional salary:

• Great Work-Life balance;
• Very flexible organizational routine;
• Health benefits (for you and your family);
• Team Building activities;
• Over 300 protocols to offer you the great discounts in different areas;
• Continuous professional development sponsored by our Training and Certification Department;
• Regular feedback on your performance through a personalized plan;
• Comprehensive career plan and progression involving assertive performance reviews.

Responsibilities

• Participate in the development effort of the project, with a strong focus on Spring Boot
• Act as a liaison between stakeholders to align expectations, negotiate deadlines and provide regular progress updates
• Ensure project’s team lead is aware of risks, dependencies/blockers, mitigation efforts and any business impact, communicated in a clear and structured way
• Guarantee that high-quality deliverables are produced on schedule and aligned with client guidelines and industry best practices
• Make sound architectural decisions to ensure robust and scalable solutions

Requirements

• Bachelor’s or Master’s degree in Computer Science or a related field
• Proven expertise in Spring Boot, microservices development, database integration, RESTful API development, and related technologies
• Solid knowledge of foundational architecture design patterns, DevOps/CI-CD, Git, testing, build tooling, troubleshooting, observability, caching, message queuing and Scrum tools/methodology
• Excellent communication skills; resilient and goal-oriented
• Technology-driven and motivated by challenges
• Proficiency in English (written and spoken)
• European Union Citizenship or Portuguese Working Visa / Portuguese Residency.
• Availability to go to the office, once or twice per week.

Nice to Have

• Cloud experience (e.g., Azure, AWS, or GCP)

If you want to be part of a real People First organization, join us! Send your CV to

Junior Software Engineer

We intend to recruit a Junior Software Engineer (m/f) to perform the following functions:

WHO WE ARE

EID is one of the leading high-tech industries in Portugal that works mainly for the Defence sector. With a proven record and solid know-how in the fields of electronics and communications designs, manufactures, supplies, and supports advanced, high-performance solutions.

The demanding markets where EID operates requires a permanent attitude of innovation. Our growth is supported in the ability to develop and launch technologically evolved, innovative products and solutions, meeting the specific customer requirements.

EID’s knowledge and technological capabilities rely on the experience and expertise of highly qualified electronics, software and communications engineers, who represent the majority of the company workforce.

YOUR ROLE

• Software development for embedded systems;
• Shared services and client/server platforms;
• Native and Web GUI applications in Windows, Linux and Android environments.

OUR REQUIREMENTS FOR THIS JOB:

• Higher education in Computer Engineering or related areas;
• Solid knowledge and experience in software development with C, C++, .NET/C# and Java;
• Good understanding of software development life cycle and methodologies
• Experience in using MS Visual Studio and Eclipse IDEs;
• Good expression skills in Portuguese and English, spoken and written

IT WOULD BE A PLUS IF YOU HAVE:

• Cyber-physical systems, real-time OS and hardware protocols (e.g. USB, I2C, SPI)
• TCP/IP networks and VoIP protocols
• Cloud integration protocols
• Web services
• Cryptography / PKI
• System modelling and design with UML

CHECK IF YOU ARE/HAVE:

• Autonomy and like to solve problems;
• Dynamism and spirit of initiative;
• Easy teamwork integration;

WE OFFER:

• Sustained and progressive development of the candidate know-how;
• A competitive package according with experience;
• A work culture that puts emphasis on the individual, offering flexible working solutions;
• 22 vacancy days plus 2 extra days fixed by the company;
• Your anniversary day without being at work;
• Private health insurance.

EID embraces diversity and inclusion. We hire based on merit, without discrimination based on race, religion, gender, age, disability, or any other protected characteristic.

Respect is at our core. Join a workplace where you can thrive, feel empowered, where you belong and can succeed.

Senior Software Engineer

Reporting to the Senior Director, Development , the Senior Software Engineer you will contribute your expertise in solution architecture for Core Banking implementations, leveraging your deep knowledge of Java Spring Boot Microservices and Java programming. You will articulate and design product extensibility, customizations, and integrations in alignment with our product architecture, ensuring robust and scalable solutions.

• Design and develop solution architecture for Core Banking implementations.
• Articulate and design product extensibility, customizations, and integrations.
• Design and develop applications using Java EE platforms.
• Ensure adherence to Testable, Secure, and Performant Coding practices.
• Utilize strong knowledge of Relational Databases, including Oracle, IBM DB2, or PostgreSQL, and Liquibase concepts.
• Design and develop applications using Messaging Technologies such as JMS, Active MQ, Kafka, and Debezium.
• Work with J2EE application servers such as WebSphere, JBoss, and Apache Tomcat.
• Blend technical and functional knowledge to architect, design, and implement solutions.
• Solve complex problems and perform analytical tasks.
• Communicate effectively through verbal, written, and telephonic channels.

Required Experience:

• 5-8 years of proven experience in designing solution architecture for Core Banking implementations.
• Expertise in developing Java Spring Boot Microservices and deep knowledge of Java as a programming language.
• Capability to articulate and design product extensibility, customizations, and integrations in alignment with product architecture.
• Proficiency in designing and developing applications using Java EE platforms with an understanding of the Software Development Life Cycle.
• Understanding of Testable, Secure, and Performant Coding practices.
• Strong knowledge of Relational Databases, with expertise in at least one of the following: Oracle, IBM DB2, or PostgreSQL, along with Liquibase concepts.
• Expertise in designing and developing applications using Messaging Technologies such as JMS, Active MQ, Kafka, and Debezium.
• Solid understanding of J2EE application servers such as WebSphere, JBoss, and Apache Tomcat.
• A good blend of technical and functional knowledge to architect, design, and implement solutions.
• Excellent problem-solving and analytical skills.
• Strong verbal, written, and telephonic communication skills.

Work from Home Lead Data Software Engineer

AgileEngine is a top-ranking provider of software solutions to Fortune 500, Global 500, and Future 50 companies. Listed on Inc. 5000 among the fastest-growing US companies, we are always open to talented software, UX, and data experts in the Americas, Europe, and Asia.

If you like a challenging environment where you’re working with the best and are encouraged to learn and experiment daily, there’s no better place — guaranteed! :)

What you will do

Collaborate closely with Data Scientists to understand their data requirements, model development needs, and performance optimization goals;

Design, build, and maintain scalable data pipelines and infrastructure to support ML model development and deployment;

Collect, process, and prepare large datasets for analysis, feature engineering, and model training;

Implement data quality checks, validation, and monitoring to ensure the reliability and accuracy of data used in ML models;

Optimize data storage, retrieval, and processing performance for ML workloads;

Develop and maintain ETL (Extract, Transform, Load) processes and workflows;

Manage data versioning, storage, and access control for ML datasets;

Collaborate with DevOps and IT teams to ensure smooth deployment and scaling of ML models in production environments;

Stay up-to-date with emerging technologies, tools, and best practices in data engineering and ML infrastructure.

Must haves

Bachelor’s or Master’s degree in Computer Science, Data Science, or a related field;

Proven experience as a Data Engineer, preferably in a role supporting Data Scientists;

Strong proficiency in programming languages such as Python, Java, or Scala;

Proficiency with data storage and processing technologies, including SQL databases, NoSQL databases, and distributed computing frameworks (e.g., Hadoop, Spark);

Experience with data warehousing solutions and data integration tools;

Experience with data pipeline and workflow management tools: AWS glue, Airflow, etc;

Knowledge of ML frameworks (e.g., TensorFlow, PyTorch) and ML model deployment;

Familiarity with cloud platforms (e.g., AWS, Azure, Google Cloud) and containerization (e.g., Docker, Kubernetes);

Excellent problem-solving skills and a collaborative mindset;

Excellent oral and written communication skills with a keen sense of customer service.

Nice to haves

Experience in ad/marketing environment

Experience working with Data Lakes

Experience with Scala

Experience with Glue/EMR/Redshift/Airflow

Experience with Terraform.

Professional growth

Accelerate your professional journey with mentorship, TechTalks, and personalized growth roadmaps.

Competitive compensation

We match your ever-growing skills, talent, and contributions with competitive USD-based compensation and budgets for education, fitness, and team activities.

A selection of exciting projects

Join projects with modern solutions development and top-tier clients that include Fortune 500 enterprises and leading product brands.

Flextime

Tailor your schedule for an optimal work-life balance, by having the options of working from home and going to the office – whatever makes you the happiest and most productive.

Software Test Engineer

Join Us at Closer Consulting!

Mutual Respect, Empathy, Innovation and Professional Pride. Do you see yourself within these values?

Founded in 2006 under the mission "To Challenge Complexity", Closer Consulting is a Data Science company specialized in Business Intelligence, Advanced Analytics and Artificial Intelligence.

By developing projects in the most diverse industries – Banking, Telecommunications, Health, Retail, Energy, Insurance or Aviation – we analyze data, transforming it into knowledge for our clients, allowing them to adopt the best decision-making for their respective organizations and businesses.

We are now looking for a Software Test Engineer willing to accept new challenges in our Closer team in a hybrid project based in Lisbon .

Key Responsibilities:

• Design, develop and execute automated test scenarios
• Implement interface, load, integrated and mobile testing
• Prioritize and automate critical business scenarios
• Ensure product quality through detailed and thoughtful test design
• Work closely with development teams to validate features
• Identify, report and follow up on bugs and issues
• Contribute to continuous improvement of QA processes

Technical Profile:

• Strong experience in Java and Cucumber
• Proficiency in Selenium and Appium frameworks
• Knowledge of Locust , SQL , Jira , Openshift , Jenkins , and JMeter

Personal Profile:

• Organized and methodical, with a strong focus on planning
• Team player, proactive and solution-oriented
• Strong abstraction and design thinking skills
• Fluent in Portuguese and English

We believe we are the ones to, by: Providing a Multidisciplinary Team. Giving a home office kit, with everything you need to perform remotely. Ensuring a career plan alongside with professional growth. Providing you with a custom training plan. Oh… and by the way, we also have: Several challenging complex projects. Stimulating teams and leaders. World-class Clients and Partners.

If you believe in this match as much as we do, send us your CV to and reach the closest side of life.

Closer is a company that values diversity and inclusion. We are committed to fostering an environment where everyone is treated with dignity and respect, regardless of race, gender, beliefs, sexual orientation, physical or mental disability, or other personal characteristics.

At Closer, we embrace the unique perspectives and experiences that everyone brings, and we believe that it is a fundamental driver for the success we've achieved.

Senior Software & Data Engineer

With just over 7 years of experience in the Portuguese market, we share our DNA with more than 200 workers and position our offer according to 3 lines of service:

• Strategy (Outsourcing, NeXel, Team as a Service, Tech Academies);
• Nearshore.

In ADENTIS, we focus on PEOPLE. This is our emotional salary:

• Great Work-Life balance;
• Very flexible organizational routine;
• Health benefits (for you and your family);
• Team Building activities;
• Over 300 protocols to offer you the great discounts in different areas;
• Continuous professional development sponsored by our Training and Certification Department;
• Regular feedback on your performance through a personalized plan;
• Comprehensive career plan and progression involving assertive performance reviews.

Responsibilities:

• Lead technical discussions and actively participate in development, with a particular focus on Spring Boot, Azure SQL, Azure DevOps, and Databricks/Scala/Spark.
• Support and drive architectural efforts, including High-Level Design (HLD) and Domain-Driven Design (DDD).
• Develop microservices, RESTful APIs, and ensure integration with databases.
• Collaborate closely with other developers, architects, and stakeholders to guarantee delivery excellence.
• Participate in troubleshooting, testing, and build processes, promoting DevOps best practices, observability, and CI/CD.

Requirements:

• Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field.
• Proven experience in Spring Boot, microservices development, database integration, and RESTful API development.
• Strong knowledge of architectural design patterns, DevOps/CI-CD pipelines, Git, build tools, testing, caching, message queuing, troubleshooting, and observability.
• Experience with Scrum methodology and associated tools.
• Proven cloud experience (Azure preferred, AWS also acceptable).
• Excellent communication skills, resilience, goal orientation, and a passion for technology and challenges.
• Fluency in English, both written and spoken.
• European Union Citizenship or Portuguese Working Visa / Portuguese Residency.
• Availability to go to the office, once or twice per week.

Nice to Have:

• Experience with Databricks.
• Knowledge of Azure SQL management.
• Experience with Spark, PySpark, or Scala.

If you want to be part of a real People First organization, join us! Send your CV to