Senior Software Engineer - Java/Python at Gapstars | Lisbon

About GapstarsGapstars, a premier software development services firm based in the Netherlands, specializes in cultivating remote, agile teams in Sri Lanka and Portugal for groundbreaking tech companies. Our workforce of over 275 TechStars is dedicated to transforming scalable software into high-performance products that redefine industry standards. We partne…

Join Us at GoCardlessGoCardless is a pioneering global bank payment platform, empowering over 100,000 businesses, from innovative startups to established enterprises, to effortlessly collect and send payments through direct debit, real-time payments, and open banking solutions.Every year, we process more than US$130 billion in payments across 30+ countries, enabling our customers to manage both recurring and one-off payments with ease, eliminating the stress and high costs often associated with payment processing. Our AI-driven solutions enhance payment success rates and minimize fraud, while our open banking connectivity allows access to over 2,500 banks, facilitating faster, more informed decision-making.Headquartered in the UK, with offices in London, Leeds, and additional locations in Australia, France, Ireland, Latvia, Portugal, and the United States, we are committed to creating an inclusive and supportive workplace.At GoCardless, we prioritize your success. Our hiring process is designed to be inclusive and accessible. If you require assistance or adjustments, please reach out to your Talent Partner — we are here to support you!Remember, you don’t have to meet every requirement to apply. If this role excites you, we encourage you to apply!Engineering at GoCardlessAs an Engineering Manager, you will tackle a range of technical challenges from streamlining banking schemes to optimizing dashboard performance.You will thrive as an Engineering Manager at GoCardless if:You are passionate about fostering an exceptional engineering culture within GoCardless and the broader tech community.You enjoy collaborating and learning from colleagues with diverse backgrounds and experiences.You take pride in your work and its positive impact on real customers.Our engineers actively shape the engineering culture both internally and externally, contributing to open-source projects (GitHub) and sharing insights through post-mortems, conferences, and more.

Cloudflare operates a global network that supports millions of websites and Internet applications, ranging from personal blogs to large enterprises. The platform aims to improve performance and security for Internet traffic, all without requiring clients to install hardware, change code, or manage software. Every request passing through Cloudflare’s network contributes to smarter, more efficient operations, helping to boost speed and reduce exposure to spam and cyber threats. The company has received recognition for both its workplace culture and its approach to innovation, including placements on Entrepreneur Magazine’s Top Company Cultures list and Fast Company’s World’s Most Innovative Companies. Who fits at Cloudflare People who thrive at Cloudflare tend to take initiative and actively seek out problems to solve. Curiosity is valued, especially when it comes to exploring how AI and new technologies can address complex issues. The team encourages sharing even small improvements and believes in learning through iteration. Those who prefer curiosity over bureaucracy and view AI as a practical tool for progress often find a strong fit here. Role overview The Senior Engineering Manager for the Workers KV team will work within Cloudflare’s Emerging Technologies & Incubation (ETI) department. ETI focuses on developing and launching new products by using Cloudflare’s network to solve large-scale challenges and deliver new services to customers. The Workers KV team is responsible for Cloudflare’s global, low-latency key-value data storage solution. This technology enables developers to store and retrieve data from locations worldwide, supporting APIs and web applications that require fast, high-volume reads. Workers KV integrates with Cloudflare Workers and is accessible via REST API. Location Lisbon London Hybrid work options available

Jobgether is looking for a Senior Engineering Manager to guide the Messaging Channels team in Portugal. This position centers on leading engineering projects that support messaging platforms, with a strong focus on quality and continuous improvement. Role overview The Senior Engineering Manager will oversee the delivery of messaging solutions and set the direction for ongoing innovation. This involves managing the team’s daily work, setting clear goals, and ensuring projects meet both technical and business standards. Collaboration and leadership Success in this role depends on building a collaborative team culture. The manager will work with cross-functional groups, aligning engineering efforts with broader company strategies and supporting the team’s growth and performance. What you will do Lead the Messaging Channels engineering team Oversee project delivery and maintain high standards for messaging platforms Encourage innovation and continuous improvement within the team Collaborate with other departments to drive strategic initiatives

At Thought Machine, we are on an ambitious mission to revolutionize the banking industry by eliminating legacy technology. Our cutting-edge core and payments solutions are designed to run seamlessly in the cloud, setting new standards in modern banking.With a team of over 550 talented professionals across global hubs in London, New York, Singapore, Sydney, and our newly established Engineering Hub in Lisbon, we have experienced tremendous growth. Backed by more than £500m in funding from top-tier investors like Molten Ventures, Eurazeo, and JPMorgan Chase, we are poised for further expansion.We pride ourselves on fostering a vibrant workplace culture that inspires excellence while ensuring our team enjoys their journey. Recognized for our high Glassdoor ratings, our generous employee share package, and hailed as one of the most innovative fintech companies by Global Finance Magazine, we continue to set benchmarks in the industry.This is a full-time, permanent role based in our Lisbon office, requiring presence four days a week.As a Senior Full Stack Engineer, you will play a crucial role in our engineering-driven organization. We emphasize engineering excellence by adopting best practices and leveraging modern technologies. You will tackle complex engineering challenges that have yet to be solved, delivering code that is secure, scalable, and provides an exceptional user experience.You will take full ownership of requirements, translating them into robust engineering designs, breaking down tasks, and implementing solutions. Your responsibilities will include developing both backend services and frontend experiences tailored to the diverse needs of our clients, ranging from the world's largest financial institutions to regional banks. You will bridge the gap between back-end and front-end, creating delightful experiences that resonate with our clients.

At Thought Machine, we are on a daring mission to eliminate legacy technology from the banking sector. By developing cutting-edge core and payments technology that operates natively in the cloud, we aim to redefine the foundations of modern banking. This ambitious endeavor requires talented individuals who can collaborate effectively to create exceptional technology.Having experienced rapid growth, our team has expanded to over 550 professionals across various offices, including London, New York, Singapore, Sydney, and our newly established Engineering Hub in Lisbon. With over £500m in funding, our esteemed investors include Molten Ventures, Eurazeo, Intesa Sanpaolo, Temasek, Nyca Partners, JPMorgan Chase Strategic Investments, and Standard Chartered Ventures.We pride ourselves on fostering a culture that encourages our team to produce outstanding work while enjoying the journey. Frequently recognized for our exceptional workplace environment, we have achieved one of the highest Glassdoor ratings among UK fintech companies and offer one of the industry's most generous employee share packages. Named among the world's most innovative fintechs by Global Finance Magazine, we were also honored by the Financial Times as one of Europe's fastest-growing companies for two consecutive years and recognized as a UK Best Employer for 2026.Software Engineering is vital to our operations at Thought Machine. We take pride in our engineering excellence, adhering to best practices and utilizing modern technologies.As a Software Engineer at Thought Machine, you will work across the entire stack, tackling complex engineering challenges that have never been addressed before. You'll be expected to write high-quality code that is scalable, secure, and performant while delivering an exceptional user experience. You will take full ownership of requirements, translating them into engineering designs, task breakdowns, and implementations. Your responsibilities will include developing both backend services and frontend experiences.Our diverse clientele includes some of the largest financial institutions in the world as well as smaller regional banks. Our systems are designed to accommodate a variety of use cases, emphasizing the importance of customizable user experiences tailored to the client's or end user's persona. Software engineers at Thought Machine are expected to bridge the gap between back-end and front-end development, crafting delightful experiences that satisfy all our clients.

Join Veeva Systems, a pioneering force in industry cloud solutions, dedicated to accelerating the delivery of therapies to patients. As one of the fastest-growing SaaS companies globally, we achieved over $2B in revenue last fiscal year, with remarkable growth prospects ahead.Our core values at Veeva, which include Do the Right Thing, Customer Success, Employee Success, and Speed, guide our mission. Notably, we made history in 2021 by becoming a public benefit corporation, committed to balancing the interests of customers, employees, society, and investors.As a Work Anywhere company, we empower you with the flexibility to work from home or in the office, allowing you to thrive in your preferred environment.Be part of our mission to transform the life sciences industry and create a positive impact on our customers, employees, and communities.The RoleAs the Engineering Manager for the HCO (Healthcare Organization) team, you will have the unique opportunity to architect the data engine that powers Veeva Link. This role is not just about managing a team; it involves solving intricate data challenges.You will navigate through extensive data interdependencies across multiple products, tasked with defining and developing resilient data pipelines that accommodate this complexity while ensuring local autonomy and global coherence. Leading a high-performing team, you will create a scalable, modern platform utilizing Apache Spark, Lakehouses, and AWS Redshift.If you are passionate about integrating technical architecture with people development, this is the perfect opportunity for you.

At Veeva Systems, we are dedicated to revolutionizing the life sciences sector by accelerating the delivery of therapies to patients. As a trailblazer in industry cloud solutions, we have achieved remarkable milestones, surpassing $3 billion in revenue last year and showcasing significant growth potential. Our core values—Doing the Right Thing, Customer Success, Employee Success, and Speed—drive our mission. In 2021, we proudly became a public benefit corporation, committed to balancing the needs of our customers, employees, society, and investors. As a Work Anywhere organization, we empower you to choose a flexible work environment that best suits your needs, whether from home or in the office. Join us in transforming the life sciences industry, where we are committed to making a meaningful impact on our customers, employees, and communities.The Role As part of the Veeva Data Cloud team, you will work with a cross-functional group of data scientists, engineers, and product managers to enhance our AI solutions. Our AI team powers a suite of products designed to accelerate insights and improve operational efficiency through a robust data architecture.Your role will involve scaling our innovative AI tools, which are complemented by a dedicated team of over 3,000 data stewards. By merging AI with human expertise, we transform data into actionable insights, facilitating faster clinical innovations and broader access to necessary treatments for patients.Veeva embraces a flexible work policy, allowing you to work from home or in our offices, prioritizing productivity in your preferred environment.

QIMA seeks a Senior Manager of Data & Web Engineering based in Lisbon. This position leads a team dedicated to applying data and technology in support of marketing objectives. The role involves guiding the design and development of web applications that serve client requirements and help grow QIMA’s digital footprint. Role overview This leadership role centers on managing a team responsible for both data and web engineering. The focus is on building solutions that align with marketing strategies and deliver value to clients. Main responsibilities Oversee the design and development of web applications Direct efforts to use data and technology to advance marketing goals Ensure projects meet client needs and support QIMA’s digital presence Location This position is based in Lisbon.

At Thought Machine, we are on a groundbreaking mission to eliminate outdated technology from the banking sector. Our innovative core and payments technology is designed to operate seamlessly in the cloud, laying the groundwork for modern banking.Having expanded rapidly over the past few years, our team now comprises over 550 talented individuals across offices in London, New York, Singapore, Sydney, and our newly launched Engineering Hub in Lisbon. With more than £500 million raised in funding, we boast a diverse group of investors including Molten Ventures, Eurazeo, Intesa Sanpaolo, Temasek, Nyca Partners, JPMorgan Chase Strategic Investments, and Standard Chartered Ventures.We cultivate a dynamic workplace culture that encourages excellence and enjoyment, often recognized for our outstanding employee experience. Sifted magazine has honored us with one of the highest Glassdoor ratings among UK fintech companies, and we have been acknowledged by Global Finance Magazine as one of the world's most innovative fintechs. Furthermore, the Financial Times recognized us as one of Europe’s fastest-growing companies for two consecutive years, and we were named a UK Best Employer for 2026.As an Engineering Manager, you will play a crucial role in driving our software engineering initiatives at Thought Machine. Our engineers tackle unprecedented engineering challenges across the technology stack, producing high-quality code that is scalable, secure, and user-friendly. You will oversee the complete lifecycle of projects, from engineering design to implementation, ensuring that both backend services and frontend experiences meet our clients' diverse needs.We serve a wide range of clients, from the largest financial institutions to regional banks. Your role will involve crafting customizable user experiences that cater to various personas, bridging the gap between back-end and front-end systems to deliver exceptional solutions.This is a full-time, permanent position based in our Lisbon office, where collaboration and innovation are at the forefront of our engineering efforts.

Veeva Systems is a purpose-driven company and a trailblazer in industry cloud solutions, dedicated to accelerating the delivery of therapies to patients in the life sciences sector. As one of the fastest-growing SaaS firms in history, we achieved over $2 billion in revenue in our last fiscal year, with significant growth opportunities on the horizon.Our core values at Veeva—Do the Right Thing, Customer Success, Employee Success, and Speed—guide our operations. In 2021, we made history by becoming a public benefit corporation (PBC), which legally commits us to balancing the interests of our customers, employees, society, and investors.Embrace the flexibility of working with us as a Work Anywhere organization, where you can choose your ideal work environment, whether from home or the office.Join us in transforming the life sciences industry, as we strive for a positive impact on our customers, employees, and communities.The RoleThe vision of our Link data application family is to foster connections between life sciences and healthcare professionals to enhance research and care. The HCP Data team is responsible for the internal product that supports all customer-facing external products within the Veeva Link suite. The Manager will lead over 11 distinct streams and oversee a team of 8+ leads, collaborating with cross-functional stakeholders across product management, data science, and engineering.Ideal candidates will possess a university degree, exhibit strong interpersonal skills, be proactive learners, and have a keen interest in building a sustainable career within a rapidly growing international tech company. A proven track record in developing teams and processes, alongside a solid understanding of data, is essential. We value cultural fit; candidates should thrive in a fast-paced, multicultural environment. If you are passionate about data, life sciences, and the prospect of working with a dynamic tech company, then Veeva is the place for you. Please note that Veeva is unable to provide employment visa sponsorship.

Cross Border Talents is seeking a dynamic SAP Digital Engagement Manager to join our esteemed client's team in Lisbon, Portugal. Our client, a leading European provider of integrated IT services, infrastructure management, engineering and R&D, and business services, is renowned for its innovative solutions and commitment to fostering collaborative relationships that transcend traditional contractual agreements.Responsibilities:Facilitate the seamless transition from sales to customer onboarding for SAP Enterprise Cloud Services.Lead the onboarding and transition processes for customers integrating with SAP Enterprise Cloud Services.Oversee project delivery, ensuring adherence to defined scope, budget, and project milestones.Assist in de-escalating critical customer situations effectively.Collaborate with Major Incident Management, SAP Enterprise Cloud Services Customer Office teams, and SAP Product Support during critical customer incidents.Participate in customer release and maintenance operations.Provide ongoing technical support to customers throughout their lifecycle within the SAP ecosystem.Implement and support problem management and continuous improvement initiatives.Act as a liaison with various SAP user stakeholders, particularly virtual customer success partners, to ensure optimal customer success.Evaluate account status and determine if a transition to another team is necessary based on account growth or complexity.Streamline onboarding processes for new associates, ensuring compliance with mandatory training documentation.Facilitate continuous knowledge transfer sessions on new topics and refresher trainings.Technical Skills:Expertise in SAP Basis with at least 4 years of experience.Strong understanding and hands-on experience with HANA database.Mandatory experience in SAP Upgrade & Migration (OS/DB).Familiarity with SaaS products (e.g., Ariba, Salesforce, C4S) integration with SAP landscape is a plus.Hands-on experience with major cloud providers (AWS, Azure, GCP) is essential.Requirements:Minimum 4 years of experience with multinational software/IT organizations.Cloud knowledge of 2+ years (e.g., through Solution Management, Consulting, or Delivery Program management).2+ years of SAP Basis S/4HANA knowledge is required.Fluency in German, Dutch, and Greek is mandatory.Benefits:Fully remote position based in Portugal.Standard working hours: Monday to Friday.Competitive salary.Meal allowance provided on a card.Opportunities for career advancement.Parenthood support program.Comprehensive health and life insurance packages.

WHO WE AREAt Trustly, we are at the forefront of creating a smarter, faster, and more secure financial landscape. As a premier global provider of Open Banking Payments, our mission is to establish Pay by Bank as the new benchmark for online transactions, delivering unmatched convenience, speed, and security to millions of consumers and merchants across the globe.Our Ambition: To develop the world’s most transformative payment network, reshaping the payment experience for everyone involved.Trustly is a diverse collective of innovators, collaborators, and achievers. If you possess a strong sense of purpose and excel in a dynamic, entrepreneurial, and rapidly evolving environment, we invite you to join our team and contribute to the transformation of payment methods worldwide.The RoleWe are seeking a seasoned Engineering Manager to lead a talented team of engineers. In collaboration with a Product Manager, you will coordinate your team's efforts, ensuring they are tackling the right challenges and equipped to deliver exceptional results. Your team will focus on specific customer issues within an agile framework, and you will be responsible for fostering scalability and innovation. You will consistently assess both technical and business needs to ensure alignment with the company’s strategic objectives.In addition, you will actively participate in a dynamic product and tech management team, driving various initiatives. We are looking for a leader who is committed to cultivating a culture of continuous learning at both team and individual levels, inspiring, coaching, and supporting your colleagues along the way.About YouTo excel in this position, you should have a solid background in leadership and a deep commitment to your work. You empower and enable your team, practicing delegated leadership daily, and possess a passion for technology that helps guide your team through the technical roadmap.From both strategic and operational perspectives, you take the lead and execute effectively. Your interest in continuous process improvement drives you to seek better ways of working. As a senior leader, you thrive on mentoring and empowering those around you. Given Trustly's foundation in technology, a genuine interest in financial technology and payment systems is essential.

Join SIXT as we redefine the future of mobility through innovative technology. As a Software Engineering Manager, you will spearhead engineering initiatives for critical platforms that drive our global fleet operations and enhance revenue optimization. Your teams will develop systems for fleet planning, lifecycle management, operational decision-making, and logistics, enabling data-driven strategies across a vast network of vehicles worldwide.In collaboration with product managers, data scientists, analysts, and business stakeholders, you will help design and scale solutions that forecast demand, improve fleet utilization, and facilitate real-time operational decisions. As we modernize our core platforms, your contributions will directly impact operational efficiency, customer satisfaction, and overall business performance within our global mobility ecosystem.YOUR ROLE AT SIXTLead and cultivate high-performing engineering teams, promoting a culture of ownership, continuous improvement, and technical excellence, with a focus on adopting modern software development practices, particularly in AI and agentic engineering.Empower teams to create and deliver scalable, reliable systems while fostering modern engineering practices and robust architectural thinking.Serve as a mentor and coach, guiding autonomous teams in overcoming complex technical and organizational challenges.Collaborate closely with product leaders to shape product vision, translating business challenges into technical solutions that deliver measurable value to customers and the business.Drive execution and delivery of large-scale cross-functional initiatives involving engineering, data science, analytics, and business stakeholders.Balance speed and quality by managing trade-offs between rapid delivery, system scalability, and long-term technical sustainability.

Join our Unbabel division as a Data Engineering Intern and dive into the exciting world of data engineering. In this role, you will assist in designing, developing, and managing the data infrastructure and pipelines that empower Unbabel’s core products and analytics. This is a rare chance to gain hands-on experience in how large-scale language and translation data is processed, stored, and analyzed within a live, production environment.Key Responsibilities:Collaborate with data engineers and cross-functional teams to interpret business requirements and deliver effective data solutions.Assist in the development, testing, and maintenance of data pipelines (ETL) and data integrations.Optimize the efficiency and reliability of our data workflows.Contribute to the documentation of data architecture, pipelines, and processes.Gain experience working with both structured and unstructured data from diverse sources.Support data quality initiatives by monitoring, testing, and validating data.Engage in daily team standups, sprint planning sessions, and code reviews.Enhance your skills in modern data tools, programming, and cloud technologies.

Join Altersolutions as an Application Support Engineer / Application Manager in the vibrant city of Lisbon! We are seeking a passionate individual who thrives in fast-paced environments and is eager to make a significant impact on our operations. As part of our team, you will be responsible for providing exceptional support to our applications, ensuring they run smoothly and efficiently.

Welcome to Kaizen Gaming!As a leading force behind Betano, Kaizen Gaming stands as one of the world's largest GameTech companies, proudly serving 19 diverse markets. Our mission revolves around harnessing state-of-the-art technology to deliver unparalleled experiences to millions of customers who choose us for their gaming entertainment.We are a vibrant community of over 2,700 passionate Kaizeners from more than 40 nationalities, spread across three continents. Recognized as one of the Best Workplaces in Europe and certified as a Great Place to Work, we assure you that no two days will be alike in our dynamic environment. Are you ready to Press Play on your potential?About the RoleAt Kaizen, we are dedicated to utilizing the power of modern AI algorithms to enhance our products and business strategies continuously. Our AI department, comprising product, platform, and research teams, is central to this goal. From detecting fraudulent activities to providing personalized gaming recommendations and optimizing CRM systems, we develop innovative AI solutions.Our teams are built on the principles of self-drive, autonomy, and cross-functionality. In this collaborative environment, you'll engage with Data Scientists, Machine Learning Engineers, Data Engineers, Data Analysts, Product Owners, and Agile Delivery Leads.As a Machine Learning Engineer, your primary focus will be on architecting and delivering robust, scalable Machine Learning pipelines while ensuring the seamless operationalization of Machine Learning models.Your Responsibilities:Design, develop, and maintain scalable model training and inference pipelines in a distributed production environment.Create, deploy, and manage microservices in Python that host and serve ML models in production.Develop and maintain internal tools that facilitate CI/CD/CT, efficient feature engineering, experiment tracking, and data/model versioning.

Join our dynamic team as an Identity & Access Management (IAM) Engineer in Lisbon! We are looking for a talented professional with extensive experience in the implementation of sophisticated IAM controls. This role will focus on technically advanced projects, emphasizing automation, security, and a culture of continuous improvement.Key Responsibilities:Implement cutting-edge IAM controls and continuous monitoring strategies.Ensure adherence to internal policies, standards, and industry best practices.Design and develop automation solutions and technical integrations using Python (or Ruby).Manage and optimize Linux and Windows Server environments.Define, track, and report on security metrics and KPIs.Collaborate effectively with technical teams to enhance and streamline operational processes.Support identity lifecycle management activities, including provisioning, governance, and access review.

About Indicium AI Indicium AI is a trusted partner for some of the foremost enterprises globally, specializing in the seamless integration of AI into production at scale. As a leading AI-native consultancy, we have demonstrated our expertise across various sectors, including Financial Services, Energy & Utilities, Healthcare & Life Sciences, Retail & CPG, and Manufacturing. Our commitment spans from strategic planning to implementation, driving tangible business outcomes through AI with unparalleled clarity, speed, and capability. With a team of over 600 AI experts serving 50+ enterprise clients across five global locations, we collaborate closely with top partners—such as Anthropic, Databricks, AWS, OpenAI, and Microsoft—to deliver cutting-edge AI solutions swiftly and effectively. Opportunity At Indicium AI, we understand the vastness of the data landscape. Therefore, we are eager to connect with individuals possessing extensive data backgrounds and cloud expertise who excel in producing high-quality software. As a consulting firm driven by outcomes, we are in search of individuals who thrive on adopting a consultative approach to problem-solving, addressing issues in a comprehensive, end-to-end manner. Our diverse and talented team comes from a range of backgrounds, and we value the opportunity for mutual learning. Responsibilities Lead the technical implementation and delivery of modern data systems and AI-enabled applications. Address end-to-end data challenges and opportunities on a large scale. Contribute to the architecture and design of solutions. Work closely with clients to realize their data strategies and drive success. Collaborate with cross-functional teams throughout the discovery and delivery phases, focusing on advisory, design, and implementation of comprehensive solutions. Participate in internal initiatives including blogs and technical forums.

At Sixt, we aspire to revolutionize the way people move, meeting their expectations for a better experience. Become a part of our Data Science team and help us make impactful changes through advanced algorithms that enhance our business processes, including pricing. Join us on this exciting journey!YOUR ROLE AT SIXTLead and expand our Machine Learning Engineering team, working closely with data scientists to convert models into production-ready ML applications on our central MLOps platform.Establish ML Engineering standards by creating best practices, design patterns, and quality benchmarks that empower data scientists to develop scalable and maintainable ML solutions.Drive the technical strategy and architecture across data science, MLOps, and engineering teams, ensuring alignment with our business goals while effectively communicating system designs to technical leadership.Act as a bridge between platform capabilities and practical implementation, translating MLOps platform features into actionable guidance for data science teams and relaying ML engineering needs back to the MLOps platform team.Promote collaboration and excellence by building strong relationships across cross-functional teams, mentoring engineers, and nurturing a culture of innovation and continuous improvement.