Senior Java Full Stack Developer

Join our dynamic team at inetum2 as a Senior Java Full Stack Developer. In this pivotal role, you will leverage your extensive knowledge of Java and full-stack development to design, implement, and maintain high-quality software solutions. Collaborate with cross-functional teams to deliver robust applications that meet our clients' needs, while ensuring a se…

About Us At Riskified, we empower businesses to achieve ecommerce growth by mitigating risks. Our platform is trusted by some of the world’s most prestigious brands and publicly traded companies, offering guaranteed protection against chargebacks, combating fraud and policy abuse on a large scale, and enhancing customer retention. Our AI-driven fraud and risk intelligence platform is developed and managed by an extensive team of ecommerce risk analysts, data scientists, and researchers, analyzing each interaction to deliver real-time decisions and comprehensive identity-based insights. We proudly partner with remarkable companies across various industries, including Acer, Gucci, Lorna Jane, GoPro, and many more. We thrive in a collaborative environment, working alongside talented individuals to create and improve products that genuinely matter. The opportunities to innovate and contribute give us a sense of purpose, creating a lasting impact and motivating us to choose Riskified every day. About the Role As a Senior Full-Stack Engineer in Riskified’s Core Services Group, you will be responsible for designing, building, and maintaining end-to-end applications using diverse technologies. Working in a fast-paced, agile environment with cutting-edge tools, you will play a key role in expanding Riskified’s ecosystem. Our developers take full ownership of their work, from feature planning with Product and Design teams to technology selection, architectural design, coding, code reviews, deployment in a CI/CD environment, and ongoing monitoring post-deployment. The team primarily focuses on customer-facing applications, including a core web tool that enables merchants to review orders, take actions, and gain insights through advanced analytics. You will have the opportunity to engage in all aspects of development, whether that involves crafting precise UI, developing robust backend logic, or optimizing infrastructure for scalability. Our Technology Stack: Scala, Spark, Node.js, Ruby, React, Postgres, Elastic, Redis, AWS, Kafka, Docker, Kubernetes, CircleCI, and more. Your Responsibilities Design and develop a highly reliable, available, and scalable architecture for our core services and web applications in a promising new product. Deploy your code to production daily using advanced CI/CD pipelines. Actively manage production systems to ensure smooth operation. Contribute to planning the team roadmap and product development. Collaborate with design and product teams to define and implement new features.

Role Overview ComplyAdvantage is looking for a Junior Frontend Engineer to join the team in Lisbon, Portugal. This position supports the development of SaaS-based anti-money laundering solutions that help organizations fight financial crime. The role sits within the Frontend Platform team, which builds and maintains the core features, UI components, and engineering tools used across ComplyAdvantage to deliver customer-facing products. What You Will Do Help develop and maintain UI components that support compliance officers in managing customer information. Work alongside Backend Engineers to integrate features smoothly. Collaborate with other frontend engineers to improve build, test, and deployment workflows. Join design discussions and code reviews to learn best practices for building maintainable, high-performance applications. Participate in agile ceremonies, such as stand-ups, refinements, and retrospectives, and contribute to team decisions. Use AI-assisted development tools (like Claude Code or Gemini Code Assist) under guidance to boost productivity and code quality. What We Look For Experience or completed projects using TypeScript and React. Basic understanding of frontend testing, with interest in learning frameworks such as Vitest or Cypress. Curiosity and willingness to learn, share knowledge, and adapt to different project needs. Problem-solving skills and attention to detail when debugging or styling interfaces. Comfort participating in team discussions and contributing new ideas. Bonus Skills Familiarity with React Query for data fetching. Experience with build tools like Vite or a basic grasp of CI/CD in GitLab. Some exposure to Figma for translating designs into code. Interest in observability tools such as Grafana or Sentry for monitoring application health. Benefits Equity options to share in the company’s growth. Unlimited Time Off policy to support work-life balance and well-being. Opportunities for professional growth and development.

Veeva Systems is a pioneering organization in industry cloud solutions, dedicated to expediting the delivery of therapies to patients within the life sciences sector. As one of the fastest-growing SaaS companies in history, we achieved over $2 billion in revenue last fiscal year, with promising growth opportunities on the horizon.Our core values of integrity, customer success, employee success, and speed form the foundation of our work culture. In 2021, we made history by becoming a public benefit corporation (PBC), which legally binds us to balance the interests of our customers, employees, society, and investors.As a Work Anywhere company, we prioritize your flexibility, allowing you to thrive in either a remote or in-office environment.Join us in transforming the life sciences industry by positively impacting our customers, employees, and communities.The RoleAs a part of Veeva Link, we are developing an intelligence layer for the life sciences sector, creating interconnected data applications that speed up drug development and enhance patient outcomes. Our belief is that the integration of high-quality data with advanced software yields significant value.Execution is paramount to us. Progress is driven by speed, accuracy, and quality in our daily creations. Our engineering philosophy focuses on precise product definitions that lead to thorough technical designs. We utilize a modern tech stack to produce reliable applications that provide an excellent user experience.Our initiatives encompass two vital domains:Data-Driven InsightsWe create sophisticated applications that map and comprehend global scientific and medical expertise, delivering impactful insights and AI-generated intelligence. Our engineers address complex data modeling, entity resolution, and advanced machine learning challenges.Intelligent Business WorkflowsWe design intelligent workflows that streamline business processes in the life sciences sector, ensuring efficiency and effectiveness in our operations. Our technologies facilitate seamless integration and collaboration across various functions.

Join SingleStore as a Senior/Principal Software Engineer and contribute to our mission of revolutionizing data management. As a key player in our engineering team, you will work on cutting-edge technologies and be instrumental in developing innovative solutions that empower our clients to manage their data efficiently.

About Air AppsAt Air Apps, we envision a world where technology empowers individuals and businesses alike. Founded in 2018 in Lisbon, Portugal, we are on a transformative mission to develop the first AI-powered Personal & Entrepreneurial Resource Planner (PRP). With over 100 million downloads globally, we pride ourselves on being a self-funded company committed to innovation and excellence.Our focus on long-term goals drives us to constantly challenge the conventional, pioneering AI-driven solutions that significantly enhance people's planning, work, and lifestyle. Here, your creativity will shape products that empower users worldwide.Join us in revolutionizing resource management and making a lasting impact on lives.The RoleAs a Software Architect / Solutions Architect at Air Apps, you will lead the charge in defining and overseeing the architectural framework of our AI-driven platform. You will work closely with engineering teams, product managers, and stakeholders to architect scalable, secure, and high-performance solutions that align with our business objectives.Your expertise will be crucial in shaping our technology strategy, evaluating new tools and frameworks, and ensuring adherence to best practices in software design, cloud infrastructure, and system integration.ResponsibilitiesDefine and maintain the overall architecture and system design for scalable and efficient software solutions.Provide technical leadership to engineering teams, guiding them in best practices for architecture, coding, and system scalability.Design and document high-level system diagrams, data flows, and API structures.Evaluate and recommend technologies, frameworks, and cloud services to optimize performance, security, and cost-efficiency.Ensure high availability, fault tolerance, and security in all architectural decisions.Oversee system integrations, including microservices, APIs, and third-party services.Collaborate with DevOps and SRE teams to ensure smooth deployment and operational reliability.Establish coding and architecture standards to ensure maintainability and scalability.

About UsAt Supermodular AI, we empower enterprises to embrace the AI transformation journey. Our philosophy centers on actionable strategy stemming from execution.While many organizations recognize AI's potential, they often find it challenging to convert that vision into tangible operational changes. The technology itself is rarely the barrier; instead, the integration of AI into established, intricate systems, workflows, and engineering teams—developed over many years—is where the challenge lies. We assert that AI transformation cannot solely be conceptualized through strategic documents; genuine strategy materializes through the construction, deployment, and operation of AI systems within the organization.Our focus is on collaborating directly with enterprise IT and software teams, designing and implementing AI systems in real-world environments. We assist engineering teams in adopting innovative AI-native development practices, frameworks, and technical assets that redefine how software is built and operated. Additionally, we develop bespoke AI systems to facilitate modernization and harmonization efforts where traditional methods have faltered.Our team boasts a proven history of creating impactful AI systems and scaling engineering teams within complex enterprises. If you thrive on tackling challenging enterprise issues and transforming ambitious concepts into operational systems, you will find your place at Supermodular AI.Your ResponsibilitiesAs a Forward Deployed Software Engineer at Supermodular AI, you will collaborate closely with enterprise IT and software teams to convert AI into reliable systems that function in production.You will be immersed in real enterprise settings, partnering with engineers and technical leaders to comprehend current operational systems and identify where AI can drive significant enhancements. Your role will involve navigating complex system landscapes, uncovering opportunities, formulating practical solutions, and constructing the systems that realize these solutions.Your work will encompass the entire engagement lifecycle. You will help shape technical strategies from the outset, design architectures tailored to enterprise constraints, and implement the systems that yield meaningful operational advancements.Many challenges you will face may not be fully articulated at the outset. Your mission is to clarify these environments by proposing actionable solutions and building systems that propel the organization forward. At its core, this position is about one fundamental goal: creating systems that translate AI aspirations into functional capabilities.

Join our dynamic team at inetum2 as a Java and C# Developer! In this exciting role, you will leverage your expertise in both Java and C# programming languages to design, develop, and maintain innovative software solutions. Your contributions will play a crucial role in driving our projects forward and enhancing our product offerings.

Join our dynamic Platform team as a Senior Python Backend Developer and take charge of the core backend systems that drive Aghanim, a pioneering direct-to-consumer (DTC) platform. Our mission is to empower mobile game developers to effectively monetize their products beyond traditional app stores. As a Merchant of Record, we manage payments, compliance, and tax obligations across over 200 territories while equipping game studios with cutting-edge tools for LiveOps automation, user segmentation, and community interaction.Our platform supports more than 100 live games through customizable Game Hubs (DTC web stores), in-game offers, subscription models, and virtual currency systems — all requiring robust real-money transaction capabilities with a focus on reliability and fraud prevention.You will be working with a sophisticated codebase that adheres to domain-driven design, encompassing over 60 business domains, strict code quality standards, and AI-assisted development processes. Our tech stack includes modern Python frameworks such as FastAPI, SQLAlchemy v2, PostgreSQL, and Redis, facilitating extensive integrations with game backends, payment gateways, and external services.

Join Our JourneyAt Mollie, we believe that businesses deserve seamless finance solutions. Since our inception in 2004, we have been dedicated to simplifying payments and financial management for companies across Europe.With over 250,000 businesses relying on our comprehensive platform, we empower them to manage their finances and achieve growth on their own terms. Our services are designed to be simple, scalable, and tailored to the needs of real businesses.As one of Europe’s rapidly expanding fintech firms, our team of over 900 Mollies operates from 12+ locations. Our success is driven by the talented individuals who make up our team. We thrive on speed, purpose, and a deep commitment to our customers. Whether you’re tackling challenges, creating innovative products, or leveraging AI for smarter workflows, you will enjoy the freedom to innovate and the trust to deliver impactful results.If you’re eager to advance your career, shape the future of fintech, and be part of a dynamic, high-achieving team, we want to hear from you.Your ContributionData is integral to Mollie, informing decisions for over 250 internal users, from Product Managers to Analysts. As a Data Engineer, you will join a pivotal team that manages the infrastructure that supports this data-driven environment. We are currently in the process of enhancing our system, transitioning from managed services to a robust, self-hosted stack that offers greater control and scalability. Our foundation is strong, and we continuously introduce new functionalities to enhance our platform.In this role, you will not only maintain data pipelines but also engineer the platform. Your responsibilities will include migrating our orchestration layer to Kubernetes, implementing stringent data contracts, and developing self-service tools that enable the rest of the organization to operate more efficiently. This hands-on engineering position ensures that your work directly contributes to the reliability and quality of data at Mollie.Your DeliverablesOversee the migration of our governance tools to DataHub on GKE (Kubernetes), enhancing our governance capabilities.Develop and refine self-service tools and CI/CD pipelines, enabling analysts and engineers to independently deploy data models.Improve data observability and quality by implementing data contracts and monitoring tools to identify issues before they affect stakeholders.Create tools and capabilities for efficient data collection, processing, and utilization within the company.Optimize our GCP infrastructure (BigQuery, Pub/Sub, GCS, GKE) for cost efficiency and performance.

About the Role inetum2 is looking for a Data Engineer in Lisbon to help build and refine our data architecture. This role focuses on designing, implementing, and maintaining scalable data pipelines and databases that serve both analytical and operational needs. What You Will Do Design and develop data pipelines to handle large volumes of data Implement and maintain databases for various use cases Support data integrity and reliability across systems Work with teams to optimize data processes and architecture Location This position is based in Lisbon.

Your Opportunity AwaitsJoin Mollie, where our mission is to simplify payments and financial management for every business in Europe and the UK. Our App Core team is dedicated to empowering product teams to deliver customer-facing features more swiftly, across both web and mobile platforms, while ensuring an exceptional developer experience.We are on the hunt for an enthusiastic UI Engineer who is passionate about platform development: enhancing the methodologies for building, releasing, and maintaining features across diverse applications and teams. Instead of focusing solely on a single user-facing feature, you will establish the groundwork that allows teams to operate efficiently and confidently—streamlining release cycles, improving tooling, infrastructure, and localization workflows.Your contributions will be pivotal in shaping systems that lie at the core of our development process, influencing how engineers construct, test, release, and scale Mollie’s offerings. Your efforts will have a direct impact on hundreds of engineers and, by extension, on thousands of customers.Become a part of a team that is not only redefining the future of payments but also implementing improvements that enable Mollie teams to deliver superior software at an accelerated pace.Your ResponsibilitiesYou will collaborate with us to design and maintain platform solutions that empower product teams to launch customer-facing features across web and mobile, serving hundreds of thousands of users monthly. Our emphasis is on creating robust foundations that enhance the development, release, and operational processes at scale.Quality and well-designed experiences are paramount to us—not just for our customers, but especially for the engineers crafting Mollie’s products. This involves developing clean, well-documented APIs, reliable tooling, and efficient workflows that facilitate development, testing, localization, and releases.As a UI Engineer, you will act as a bridge between platform capabilities and the teams that depend on them, engaging across frontend, backend, and infrastructure as necessary.With numerous releases and deployments occurring continuously on both web and mobile platforms, maintaining code quality, scalability, and reliability is essential. Anticipating needs and architecting systems that support growth, rapid release cycles, and long-term maintainability will be integral to your role.In conjunction with our existing tooling, infrastructure, and release pipelines, we are perpetually enhancing how we modernize our platform, manage mobile releases, and facilitate localization and internationalization. We are eager to discuss more over coffee, but rest assured your skills will be put to the test—and your contribution will matter.

Join our dynamic team at NielsenIQ as a Senior Antibot Engineer, where you will be at the forefront of developing cutting-edge solutions to enhance our digital security measures. In this role, you will leverage your expertise to analyze and combat bot-related threats, ensuring the integrity of our platforms. Work collaboratively with cross-functional teams to design and implement robust anti-bot frameworks that protect our data and user experience.

We are in the process of translating our careers site into English. Meanwhile, we want to ensure visibility for this position.Join Us as a Senior OutSystems Developer in Lisbon!At Sanday, we craft innovative solutions for primary healthcare. The healthcare sector is intricate and continually advancing, and we thrive on challenges. Our mission is to empower pharmacies and general practitioners with groundbreaking software that enhances their daily operations.We don’t just follow trends; we create them. We strive to be the best in our field. If you resonate with this vision and are a driven, curious individual aiming for excellence, we encourage you to continue reading.Your RoleAs a Senior OutSystems Developer, you will be a key member of an international agile team dedicated to developing and maintaining advanced healthcare solutions for pharmacies and GPs in the Netherlands. You'll work from our Lisbon office, collaborating closely with colleagues based in both Lisbon and Utrecht.You will face intricate software challenges, contribute to high-impact projects, and help shape systems that significantly improve primary healthcare.We are looking for more than just a developer; we need a problem-solver, a motivator, and someone who is eager to learn.

Join our innovative team at Sixt as a Senior Machine Learning Engineer, where you will lead the design and implementation of cutting-edge machine learning solutions. You will work collaboratively in a dynamic environment, tackling challenging problems and driving the company's data-driven decision-making processes.

At Inetum, we are dedicated to leveraging technology to enhance lives and facilitate genuine business transformation. We are seeking a talented Network Engineer to become a vital part of our global team, focusing on the design, security, and operational excellence of the networks that uphold our international presence.If you are eager to engage with state-of-the-art infrastructures in a vibrant, multicultural setting, this opportunity is perfect for you.Key Responsibilities:Collaborate with an international team managing Network & Security operations for the Inetum Datacenter and global corporate networks.Design, operate, and maintain enterprise-level network infrastructure, firewalls, and network services.Conduct proactive tasks to ensure optimal availability, performance, and reliability of WAN, LAN, VOIP, and related services.Oversee and enhance critical services including DNS, VPN, routing, switching, and security policies.Implement complex IT projects across WAN, LAN, VOIP, server, and network platforms.Provide secondary support for broader network functions at the enterprise level.Deliver exceptional support to both local and remote end-users.Maintain precise documentation and contribute to knowledge base improvements.Make daily operational decisions to ensure the continuity and security of network services.

lastminute.com is looking for a Data Engineer in Lisbon to help strengthen its data infrastructure and analytics. This role focuses on designing, building, and maintaining data pipelines that support business intelligence and decision-making. What you will do Design and implement data pipelines for reliable data flow Maintain and improve systems that deliver accurate, timely data Collaborate with data scientists and analysts to ensure data is accessible and trustworthy Collaboration Work closely with colleagues across data science and analytics teams. Your efforts will help generate insights that inform company strategy. Location This position is based in Lisbon.

Are you prepared to be at the leading edge of technology as a Data Engineer with Netcompany? Join us to revolutionize the data landscape!As a Data Engineer, your responsibilities will include:Architecting and executing robust data pipelines using tools such as dbt, Trino, and Spark.Conducting dimensional modeling and data transformation to enhance data usability.Creating insightful dashboards and reports, with Power BI experience considered a plus.Writing efficient SQL queries and Python scripts to facilitate data processing.Containerizing data workflows and enabling hybrid deployments for optimal flexibility.Upholding data integrity and compliance standards.Working collaboratively with developers to test and validate seamless data integrations.

We are seeking an innovative and detail-oriented Data Engineer to join our team at inetum2. In this role, you will play a pivotal part in transforming data into actionable insights, enabling our clients to make informed decisions. You will work with advanced data technologies and collaborate with cross-functional teams to ensure data integrity and availability.

Join the dynamic team at Fundraisr as a Junior Full-Stack Software Engineer in Lisbon! This pivotal role aims to enhance our modular, service-oriented architecture while scaling a platform that has impressively achieved $1M ARR.Your mission will be to transition our platform to a high-performance, enterprise-grade ecosystem that streamlines the fundraising lifecycle through the power of automation and AI.Key Responsibilities:Develop and refine our React 18 Single-Page Application using TypeScript and Vite to ensure efficient production builds.Oversee backend logic with Node.js Vercel Serverless Functions and design the database API layer utilizing Supabase and PostgreSQL.Integrate features leveraging OpenAI and Anthropic APIs for campaign classification and personalized outreach generation.Facilitate bi-directional synchronization with SmartLeads, and create OAuth infrastructures for Google and Microsoft integrations.Implement Row-Level Security (RLS) for multi-tenant isolation and prepare our infrastructure for GDPR compliance and SOC 2 certification.