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 partner with ambitious tech firms aiming to dominate their markets.Position OverviewWe are looking for a Senior Software Engineer to enhance a rapidly expanding FinTech’s cloud-based data and analytics platform utilized by leading global market players. You will design and implement dependable, secure, and high-quality systems that facilitate extensive data distribution, with a strong emphasis on hands-on engineering, automation, and data visualization.This role is hybrid, located in Lisbon, Portugal.Key ResponsibilitiesDrive technological advancements within a fast-growing fintech company by shaping its tech solutions.Interpret business requirements and convert high-level goals into well-structured, scalable solutions utilizing the best practices of GCP.Develop robust, secure, and reliable systems, implementing practical workarounds to ensure service continuity during failures.Plan and execute well-structured releases while minimizing disruption and establishing clear rollback strategies.Guide and support junior team members, promoting a culture of learning and professional development.QualificationsAt least 5 years of experience in software development using Python and/or Java.Strong expertise in databases and cloud data warehouses (SQL, PostgreSQL, MySQL, etc.).

Join Gapstars as a Mid-Level Software Engineer!At Gapstars, we pride ourselves on building innovative remote teams across Sri Lanka and Portugal, dedicated to delivering exceptional software solutions for forward-thinking tech companies. Our dynamic team of over 275 TechStars is committed to transforming scalable software into high-performance products that reshape industries. We collaborate with ambitious partners in technology, striving to excel in their respective markets.Role OverviewWe are looking for a Mid-Level Software Engineer who will be instrumental in supporting a rapidly expanding FinTech cloud-based data and analytics platform utilized by leading global market players. Your role will focus on developing reliable, secure, and high-quality systems that facilitate large-scale data distribution, emphasizing hands-on engineering, automation, and data visualization.This is a hybrid role based in Lisbon, Portugal.Key Responsibilities:Contribute to the growth of our FinTech solutions by shaping technology initiatives.Translate high-level business objectives into scalable, architecturally sound solutions leveraging GCP.Develop robust, secure systems, ensuring effective workarounds for service continuity during failures.Plan and execute structured releases to minimize disruptions, with clear rollback strategies.Mentor junior team members, promoting a culture of continuous learning and development.Essential QualificationsAt least 2 years of experience in Python and/or Java.Strong expertise in databases and cloud data warehouses (e.g., SQL, PostgreSQL).

About gapstarsgapstars is a premier software development services provider based in the Netherlands, specializing in creating remote and agile teams in Sri Lanka and Portugal for cutting-edge tech companies. With a talented workforce of over 250 TechStars, we transform scalable software into high-performance products that drive the future of technology. Our partners are ambitious tech companies striving to dominate their respective markets.Role OverviewWe are seeking a proactive and experienced Senior Cloud Architect to spearhead the migration of a substantial on-premise platform to AWS. This role demands a practical approach; you will be responsible for designing the migration strategy while actively participating in its execution.The ideal candidate possesses extensive experience with large-scale AWS migrations, a strong background in Java-based environments, and the ability to navigate complex systems confidently. Excellent communication, accountability, and decision-making skills are essential, as you will direct the technical aspects and collaborate closely with various teams throughout the project.You will delve into the on-premise platform to analyze its intricacies and address the migration challenges. Enjoy the freedom and autonomy to showcase your leadership abilities while working alongside a compact, highly skilled team of developers with deep AWS expertise, ensuring the solutions you create make an immediate impact across the platform.

Join the Gapstars TeamAt Gapstars, we are a forward-thinking software development services provider based in the Netherlands, creating agile remote teams in Sri Lanka and Portugal. Our mission is to partner with ambitious tech companies, delivering scalable software solutions that redefine the industry. With over 275 talented TechStars on board, we are committed to innovation and excellence, shaping the future of technology together.

About GapstarsGapstars is a pioneering engineering partner based in the Netherlands that specializes in developing high-performing remote teams in Sri Lanka and Portugal. We cater to fast-growing tech companies, providing an opportunity to be part of dynamic, product-focused teams that seamlessly integrate into our clients' engineering cultures. At Gapstars, you are not just an employee; you become a crucial member of a dedicated product team, directly influencing their roadmap and long-term success.In this role, you will collaborate with the largest independent equipment financing company in the Netherlands, a rapidly expanding fintech firm that empowers small and medium-sized businesses to secure heavy equipment financing through an asset-based model. With technology at the core of their operations, your contributions will enhance the platform that thousands of entrepreneurs rely on daily.Why This Role MattersYour expertise in test automation is vital for the client’s ability to swiftly and safely roll out new features. By enhancing platform reliability and quality, you will significantly lower manual testing efforts, boost release confidence, and accelerate the engineering team's delivery cycles.Your ContributionsIn this key position, you will spearhead a greenfield initiative to establish automated end-to-end testing across various systems. Over the next two years, the aim is to automate at least 80% of the supported product flows, with remaining scenarios tested manually. This role is pivotal in shaping the testing strategy from the ground up and influencing the entire development lifecycle.

About the Role tgs is looking for a Backend Engineer (Python or Go) to join the Unbabel division in Lisbon. This team builds and maintains backend services that support enterprise-grade translation solutions across platforms. The work centers on making language technology smarter and more seamless for clients worldwide. What You Will Do Design and implement core backend services and reliable system architectures. Build, maintain, and improve codebases with an emphasis on testability and efficiency. Develop, optimize, and support key services and infrastructure in live production environments. Enhance system architecture to improve scalability, resilience, and performance. Analyze complex technical problems and help prioritize initiatives alongside product and engineering teams. Encourage continuous improvement, automation, code quality, and strong architectural practices. Work with teams across disciplines to deliver solutions that adapt to changing business and technical needs. Troubleshoot and prototype quickly to address platform and service challenges as they arise. Location Lisbon, Lisboa, Portugal

Join our dynamic team as a Senior Software Engineer where you will leverage your expertise to design and implement robust back-end systems utilizing Java and Spring frameworks. You will play a key role in developing and integrating data from diverse sources to enhance and elevate application performance.Your responsibilities will include optimizing application efficiency to ensure seamless user experiences, troubleshooting and debugging across the entire stack, and staying abreast of emerging technologies to propose innovative solutions. You will also engage in collaborative code reviews to maintain high standards of code quality and best practices.Work closely with product managers, designers, and fellow developers to deliver exceptional software solutions in a timely manner. Your ability to document your work will contribute to our knowledge base and continuous improvement efforts.

About the Role TransPerfect’s Unbabel team in Lisbon is looking for a Backend Engineer with experience in Python or Go. This role focuses on building and improving backend services that power cross-platform translation solutions for enterprise clients. The team values reliability, scalability, and seamless performance as it develops intelligent language products. Main Responsibilities Design and implement reliable backend architectures and core services. Create, maintain, and optimize codebases with attention to testing and efficiency. Develop, support, and enhance critical services in production environments. Advance the architecture to support scalability, resilience, and high performance. Analyze complex technical problems and help prioritize initiatives with product and engineering teams. Promote continuous improvement, automation, code quality, and adherence to architectural best practices. Work with cross-functional teams to deliver solutions that meet changing business and technical needs. Troubleshoot and prototype to address platform and service challenges quickly. Location This position is based in Lisbon, Lisboa, Portugal.

We are seeking enthusiastic and skilled Junior Software Engineers to join our team in crafting innovative SaaS-based solutions aimed at combating money laundering and financial crime. Our mission is to unveil the truth and create a safer world by ensuring that illicit funds do not reach the hands of wrongdoers.As a Junior Software Engineer, you will:Collaborate with a talented team of software engineers.Develop new features that empower our platform to analyze data about individuals, apply machine learning models to classify behaviors, and integrate this with our existing datasets. Your contributions will assist our clients in identifying negative actions, understanding what occurred, and pinpointing when these actions took place.Play a key role in delivering new functionalities and maintaining our platform while we innovate with new technologies and scale our operations.Quickly learn and adapt to the technologies we employ for coding and deploying to Kubernetes.Engage in sprint planning and demonstrate the features you’ve developed to stakeholders.Take ownership of your code quality, ensuring rigorous testing and maintaining system integrity.Follow and propose enhancements to best practices for transitioning code from initial requirements to deployed services in production.Our Tech Stack:We utilize a technology stack optimized for public cloud architectures, particularly AWS and GCP.Kotlin is our primary language for backend services development.Our database technologies include significant use of relational databases like Postgres and a distributed SQL database, Yugabyte.We employ an event-sourced model with Kafka for our communication bus and gRPC for intra-service communication.Modern observability solutions are built on Grafana Cloud, and we utilize ArgoCD for code deployment.We prioritize engineering excellence, striving to deliver the highest quality code and solutions to our customers.

Join our client, a leading insurance company in Portugal, as a Senior Java Developer. We are seeking a technically proficient individual who can assume technical leadership and serve as a pivotal resource for the development team.Key Responsibilities: Provide guidance as a Technical Leader Assess project efforts and oversee adherence to delivery schedules Create comprehensive technical documentation Mentor and support junior developers Work collaboratively with the team based in Spain Design and implement Java solutions that interact with hardware devices

Join Veeam Software as a Software Developer in Test, where you will play a crucial role in ensuring the quality and reliability of our software products. We seek an enthusiastic individual with a strong background in software testing, particularly in Python or C#. You will collaborate with cross-functional teams to design and implement automated tests that enhance product performance and user experience.

Join inetum2 as a talented Java Developer and be part of a dynamic team that thrives on innovation and excellence. In this role, you will leverage your Java expertise to design, develop, and implement high-quality software solutions that meet our clients' needs. If you are passionate about technology and eager to tackle challenging projects, we want to hear from you!

Role Overview Trustly is looking for a Senior Software Engineer in Lisbon, Portugal. This role focuses on building and improving payment solutions that help make online transactions smoother and more secure. The team values collaboration and creative problem-solving while working to extend the platform’s features.

We are in search of a dynamic and enthusiastic Junior Java Developer to join our innovative team for a client project based in Lisbon, Portugal. This position is ideal for professionals who possess a solid foundation in software development and are eager to contribute to cutting-edge solutions. If you thrive in a collaborative environment, pay close attention to details, and have a strong desire to advance your career, this opportunity is tailor-made for you!Key Responsibilities:- Design, develop, and maintain robust Java applications;- Investigate and troubleshoot technical challenges;- Engage in requirements analysis and contribute to software architecture design;- Uphold code quality by adhering to best practices;- Collaborate effectively with cross-functional teams to deliver superior results.

Join autodoc3 as an Engineering Lead, where you will lead innovative projects and mentor a talented team of developers. Your expertise in Java or Kotlin and PHP will be crucial in driving our technology initiatives forward.

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.

Join our dynamic tech team at Sixt SE as a Backend Java Software Engineer! In this exciting role, you will be responsible for designing, developing, and maintaining robust backend systems that drive our innovative applications. Collaborate with cross-functional teams to deliver high-quality software solutions that enhance our customer experience.

Role overview Natixis in Portugal seeks a Python Data Engineer to join the BPCE SI team in Lisbon. This position focuses on managing and improving data pipelines that support business decisions. Fluency in French is essential for daily work and collaboration. What you will do Build, maintain, and optimize data pipelines using Python Support data processing needs for analytics and reporting Work closely with colleagues to strengthen data-driven decision-making What we are looking for Fluent French language skills Strong programming experience with Python This role is based in Lisbon.

Join our dynamic team at inetum2 as a Java Backend Engineer. We are looking for a talented individual who is passionate about backend development and eager to contribute to innovative technology solutions. In this role, you will collaborate with cross-functional teams to design and implement high-quality software solutions that meet our clients' needs.

Join Cross Border Talents as a Senior Software Engineer and be part of an exciting transformation in the banking sector for our client in Lisbon, Portugal.Are you an innovative and passionate Software Engineer eager to make a significant impact? This is your chance! Join our dynamic team and help shape the future of banking in Lisbon, Portugal! In your role as a Senior Software Engineer, you will: Create robust, scalable solutions that propel our projects forward. Engage in close collaboration with product owners, business analysts, quality assurance teams, and fellow engineers. Seamlessly integrate UI components with APIs and databases to ensure a stellar user experience. Contribute to agile ceremonies promoting teamwork and continuous improvement. Partner with technology leads to design maintainable, resilient systems tailored to our project requirements.