Senior Software Engineer for Innovative Platform Solutions

Role Overview Renesas Electronics Corporation is looking for a Senior Software Engineer in Lisbon to help build and refine platform solutions used across a range of applications. This role involves close collaboration with colleagues from different disciplines to design, develop, and improve software that supports client requirements and drives system effici…

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.

As a Senior Full-Stack Software Engineer at Inetum, you will join a globally distributed team of developers dedicated to crafting innovative software solutions. Your role will involve collaborating with diverse teams across various regions to create scalable, secure, and efficient applications that align with both business objectives and technical standards.Key Responsibilities:Architect and implement robust full-stack applications following best practices and technology roadmaps.Engage in requirement analysis, design solutions, and contribute to system architecture discussions.Develop and enhance user-centric front-end interfaces and back-end services.Work closely with cross-functional teams to ensure seamless integration, testing, and deployment.Drive improvements in software design, fostering functional and technical excellence.Conduct comprehensive integration tests and User Acceptance Testing (UAT) to maintain high quality.Collaborate with central teams to uphold secure coding practices and robust Software Development Life Cycle (SDLC) processes.Champion SDLC best practices, with a focus on automation, CI/CD pipelines, and streamlined deployments.Mentor team members and advocate for code quality through regular code reviews and adherence to development standards.Embrace new technologies, frameworks, and methodologies to enhance productivity.Facilitate efficient support collaboration with relevant IT teams, particularly in Production Support (APS).

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.

Join Dashlane as a Backend Software Engineer Intern and take the first step in your career by contributing to our innovative projects. In this role, you will collaborate with our talented engineering team to develop robust backend solutions that enhance user experience and ensure data security.

About Air AppsAt Air Apps, we are driven by the belief that innovation knows no bounds. Founded in 2018, our mission is to revolutionize the way individuals and entrepreneurs manage their resources through the world's first AI-powered Personal & Entrepreneurial Resource Planner (PRP). With a passionate team and a commitment to excellence, we have achieved over 100 million downloads globally from our bases in Lisbon and San Francisco.We challenge conventional approaches daily, pushing the limits of AI to create solutions that genuinely impact lives. Here, your creativity will shape products that empower users worldwide.Join us as we embark on this transformative journey in resource management and make a lasting difference.The RoleAs a Release Engineer at Air Apps, you will play a crucial role in ensuring an efficient and reliable release process for our applications. You will manage versioning, build management, and deployment workflows, guaranteeing seamless delivery of new features and updates to our users.Your responsibilities will include collaborating with development, QA, DevOps, and product teams to optimize release cycles, mitigate risks, and uphold high standards in software delivery.

Join inetum2 as a .NET Software Engineer and take your career to the next level! We are looking for passionate individuals who thrive in a dynamic environment and are eager to contribute to innovative projects. You will collaborate with a talented team to design, develop, and maintain software solutions that drive our business forward.

Join Reltio as a Software Engineering Intern and embark on a journey to enhance your coding skills and gain hands-on experience in a dynamic tech environment. You will work closely with our talented engineering team, contributing to innovative projects and learning from industry experts.

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 Veeam Software as a Quality Assurance Automation Engineer specializing in Java!As a key member of our team, you will be responsible for designing, developing, and executing automated test scripts to ensure the quality and performance of our software products. Your expertise in Java will be pivotal in enhancing our testing frameworks and driving continuous improvements in our QA processes.

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.

Join our client, an innovative early-stage startup based in Lisbon, as they seek dynamic and ambitious Software Engineers eager to advance their careers in a fast-paced startup environment. The company is actively growing and is eager to onboard talented technical professionals.Requirements We are looking for passionate individuals who thrive on technology and excel in building, experimenting, and problem-solving. The technical stack remains adaptable, making this role perfect for those who enjoy diversity and wish to influence the engineering trajectory.You may be an ideal candidate if you: Are at the beginning of your career, ready for rapid growth Or are an experienced engineer residing in Lisbon and open to new ventures Engage in side projects or passion initiatives that demonstrate your self-driven motivation Enjoy exploring emerging technologies and taking initiative Flourish in a startup environment where your ideas can create real impact Why consider this opportunity? Experience the chance to grow alongside a startup that appreciates initiative and curiosity Enjoy the freedom to influence technical decisions and shape future products Collaborate with a dedicated, ambitious team Benefit from strong career development opportunities for individuals ready to accelerate their growth BenefitsEquity participation in the venture alongside a competitive salary Support for tax services (accountant fees, returns, and related services covered) Accelerated learning curve in a venture studio environment 24 paid vacation days per year Hybrid work model (Lisbon-based) Pet-friendly office and regular team events

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.

Are you a skilled Python Developer with a passion for automation and Power Apps? Talan is seeking a talented individual to join our Academy team. In this role, you will leverage your expertise to design and implement innovative solutions that streamline processes and enhance productivity. Collaborate with a dynamic team of professionals dedicated to driving success through technology.

Join our innovative team at inetum2 as an SQL Developer, where you will play a crucial role in managing and optimizing our database systems. We are seeking a highly motivated individual who is passionate about data and database management. Your primary responsibilities will include designing and implementing SQL queries, ensuring data integrity, and collaborating with cross-functional teams to meet our business objectives.

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.

Join our dynamic team as a Senior COBOL Developer at Inetum, where you will play a pivotal role in the development, maintenance, and transformation of our core systems. We are looking for a talented individual who possesses deep technical knowledge, extensive experience in complex environments, and the capacity to work independently while collaborating with diverse teams.This role encompasses the full software development lifecycle, from gathering requirements to testing, integration, and providing support during user acceptance testing. You will also take on a mentorship role, guiding junior developers and ensuring compliance with our organization's high quality and security standards.Key Responsibilities:Develop and enhance software solutions utilizing COBOL.Analyze project requirements and convert them into effective, high-quality COBOL applications.Collaborate with Business Analysts and Technical Leads to design and deliver innovative solutions.Participate in various testing phases, including unit testing and system integration testing.Create and maintain comprehensive test documentation; execute test cases effectively.Support the team during User Acceptance Testing (UAT).Strictly adhere to internal standards, processes, and security protocols.Mentor junior team members, providing technical guidance and facilitating knowledge transfer.Engage with internal teams, business units, and external partners as required.

Join our dynamic team at inetum2 as a Mainframe COBOL Developer, where you will play a pivotal role in designing, developing, and maintaining critical software applications. You will collaborate with cross-functional teams to ensure systems are efficient, reliable, and meet the highest standards. This is an exciting opportunity to leverage your COBOL expertise in a fast-paced environment.

Join our dynamic team at inetum2 as a Senior Outsystems Developer, where you will play a pivotal role in the design, development, and deployment of innovative software solutions. You will collaborate with cross-functional teams to deliver high-quality applications that meet our clients' needs.

SingleStore is seeking a Software Engineer - University Graduate to join the team in Lisbon, Portugal. This entry-level role centers on building real-time technology that supports business operations worldwide. Engineers here see projects through every stage, from initial design to deployment, and collaborate closely with experienced team members. The culture values teamwork, creative problem-solving, and celebrating milestones together. Role overview This position offers hands-on experience with the full product lifecycle. Engineers contribute directly to meaningful projects and have the opportunity to learn from seasoned colleagues. The team often works together in a collaborative setting and enjoys social activities outside the office as well. What you will do Develop new features using technologies like WASM Enhance fault tolerance in SingleStore clusters Optimize SQL query performance using SIMD and LLVM code generation Design and implement search and cost modules for the query optimizer Participate in all phases of development, including coding and testing Engineers in this role work closely with a small team and gain insight into various aspects of the business. Requirements Bachelor’s degree in Computer Science, Electrical Engineering, Computer Engineering, or a related field Strong grasp of computer science fundamentals, such as operating systems, concurrency, multithreading, and server architectures Proficiency in C++ or C programming Solid understanding of algorithms and data structures Interest in developing highly reliable software