Senior Backend Software Engineer

Join our dynamic team at Renesas Electronics as a Senior Backend Software Engineer. In this critical role, you will leverage your expertise to develop and enhance cutting-edge backend solutions that power our innovative products. You will collaborate with cross-functional teams to design scalable systems, ensuring high performance and reliability.

Veeva Systems is a visionary organization dedicated to transforming the life sciences industry. As a trailblazer in industry cloud solutions, we empower life sciences companies to expedite the delivery of therapies to patients. Recognized as one of the fastest-growing SaaS companies in history, we achieved over $2 billion in revenue last fiscal year and are poised for continued growth.Our core values drive us: Doing the Right Thing, Ensuring Customer Success, Fostering Employee Success, and Acting with Speed. 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.As a Work Anywhere company, we embrace flexible work arrangements that allow you to thrive in your preferred environment, be it at home or in the office.Join our mission to revolutionize the life sciences industry, positively impacting our customers, employees, and communities.The RoleOpenData Clinical serves as the backbone for intelligent clinical operations. The primary challenge in the clinical trials sector is patient recruitment, and delays in this phase can hinder the study timeline, ultimately delaying essential treatments for those in need. Our objective is to streamline this process.By pinpointing the most effective clinical sites, we expedite the journey of bringing drugs to market. We anticipate that OpenData Clinical will save at least one life annually by enhancing clinical operations.In this role, you will develop the core of our data quality engine and pipelines, enabling thousands of curators to manage extensive datasets with accuracy and efficiency, ensuring the life sciences sector has the high-quality data necessary to accelerate clinical trials and drug development.This position is ideal for an engineer who prioritizes architectural integrity over quick fixes. You will thrive in an engineering-driven culture that values technical excellence and affords you the freedom to innovate.

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

The Tripadvisor Group is dedicated to connecting people with experiences that are truly worth sharing. Our mission is to be the most trusted source for travel and experiences globally. By leveraging our esteemed brands, cutting-edge technology, and extensive capabilities, we connect a worldwide audience with partners through engaging content, expert travel advice, and two-sided marketplaces offering experiences, accommodations, restaurants, and more. The Tripadvisor Experiences Engineering team operates across Europe, overseeing Tripadvisor.com, the Tripadvisor mobile applications, and their supporting infrastructure. We manage the systems that empower operators to expand their businesses and enable third parties to access our extensive inventory. Additionally, we provide essential tools that equip our customer service teams to deliver world-class support to travelers and operators around the globe. We are on the lookout for a Software Engineer II to join our rapidly expanding team. This position is available for candidates residing within a commutable distance (typically up to 2 hours) from one of our office hubs in Lisbon, Saldanha. We embrace flexibility in work arrangements while also valuing the importance of in-person interactions for collaboration and connection. Expect a remote-first working model with occasional in-person gatherings at your closest office for team bonding, strategic planning, or other significant moments. At Tripadvisor, our engineers are adaptable and relish tackling diverse technical challenges. This is primarily a backend-focused full-stack role, where you'll predominantly work on backend tasks, with occasional frontend projects. While a strong desire to learn is essential, prior expertise in frontend development is not a prerequisite; we provide on-the-job training. Within our dynamic environment, our engineers collaborate closely with product managers and designers, engaging in the entire software development lifecycle—from design and coding to testing and deployment. Most of our engineers release code to production every few days, following a daily release cycle. Our tech stack includes Java, React, TypeScript, GraphQL, Kubernetes, SQL, and NoSQL databases, all hosted on AWS. While familiarity with every technology is not mandatory, a strong willingness to learn is crucial. You should have experience with a statically typed, object-oriented programming language such as Java, C#, or C++. Perks of Working at Tripadvisor Competitive compensation packages, including base salary and annual bonuses.

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.

About Air AppsAt Air Apps, we embrace a vision of expansive thinking and agile execution. Founded by a family in 2018, our mission is to revolutionize planning with the world's first AI-powered Personal & Entrepreneurial Resource Planner (PRP). With our roots in Lisbon, Portugal, and additional offices in San Francisco, we have successfully maintained self-funding while achieving over 100 million downloads globally.Our commitment to long-term innovation drives us to continually challenge conventional wisdom, expanding the frontiers of AI-driven solutions that genuinely transform lives. Here, you will play a pivotal role in crafting products that empower individuals worldwide.Join us on our mission to redefine resource management and make a lasting impact.The RoleAs a Backend Software Engineer, you will take charge of designing, developing, and maintaining the server-side components of our applications. You will work collaboratively with product managers, frontend developers, and other cross-functional teams to deliver robust and scalable backend services that enable essential features and foster rapid growth.Please be aware that this posting is intended to expand our talent pool while we prepare to officially launch the job. We will reach out to you as soon as it becomes available.ResponsibilitiesAPI & Service Architecture - Design and implement RESTful or GraphQL APIs, microservices, and business logic utilizing Node.js and TypeScript.Database Design & Integration - Model and manage data queries using Supabase and PostgreSQL, including functions, row-level security, and real-time features.Cloud Infrastructure - Deploy and oversee services on Google Cloud Platform (GCP), particularly with Cloud Run, Cloud Functions, IAM, and Pub/Sub.Code Quality & Testing - Create clean, testable code utilizing unit, integration, and end-to-end testing frameworks (e.g., Jest). Participate in code reviews and uphold quality assurance practices.Security & Reliability - Develop secure-by-default solutions for authentication, authorization, and data protection, adhering to Clean Code and Clean Architecture principles.Monitoring & Operations - Establish logging, monitoring, and operational practices to ensure system reliability.

Join AirApps as a Backend QA Engineer where you will play a crucial role in ensuring the quality and reliability of our backend systems. You will collaborate with developers to design and implement test plans, identify bugs, and enhance our products' performance. This is an exciting opportunity to contribute to a growing tech company in a vibrant city.

Role overview Riskified seeks a Backend Engineer in Lisbon to help build and maintain the systems behind its fraud prevention products. This position centers on developing backend applications that keep client transactions running smoothly. The work involves ensuring reliability and scalability across key services. What you will do Design, develop, and maintain backend applications that support fraud prevention efforts Work with colleagues from other teams to deliver solutions that perform well under load Help ensure the stability and scalability of systems that process client transactions

Emma Sleep is hiring a Senior Backend Engineer with expertise in Golang to help shape the technology behind its global platform. This position is based in Lisbon and centers on developing and refining backend systems that keep Emma Sleep’s operations running smoothly. Key responsibilities Design, build, and maintain backend services using Golang Improve system performance and scalability Support the reliability and efficiency of Emma Sleep’s technology platform Location This role is located in Lisbon.

Join Renesa Electronics as a Staff Backend Engineer, where you will develop robust backend systems using Django or FastAPI. This is an exciting opportunity to work on innovative projects in a dynamic team environment.

Join our dynamic team at Renesas Electronics as a Senior Backend Engineer, specializing in Django or FastAPI. In this role, you will be responsible for developing robust backend systems that support our innovative electronics solutions. We are looking for a passionate engineer who thrives in a collaborative environment and is eager to tackle complex technical challenges.

Join our dynamic team at Aghanim as a Tech Lead/Senior Golang Developer, where you will spearhead the design and development of robust backend services tailored for billing and payment processing systems.This pivotal role demands extensive expertise in Go backend architecture, paired with hands-on experience in integrating with various payment providers and financial infrastructures.You will engage in crafting systems that manage payment processing, billing logic, provider integrations, and transaction workflows, ensuring the utmost reliability, scalability, and accuracy in all financial operations.

About Easyship:Easyship is a premier multi-carrier shipping platform designed to simplify global eCommerce. Since our inception in 2014, we have been dedicated to making logistics accessible and transparent, eliminating the complexities of international shipping. With over 100,000 brands relying on our solution, we provide a centralized hub for global trade, featuring access to more than 550 courier services across 200 destinations.Recognized globally as a leading startup (Forbes 30 Under 30, TechInAsia’s Best Startup), Easyship boasts offices in London, New York, Hong Kong, and more. Our rapid growth is fueled by our commitment to transparency and our passion for creating the infrastructure that drives modern commerce. If you are eager to tackle complex challenges on a large scale, we invite you to join our team.Who We’re Looking For:We seek a Senior Backend Engineer specializing in Ruby on Rails, who is not merely a coder but an architect. The ideal candidate will leverage AI as a powerful tool to enhance the development of high-quality, scalable systems efficiently. You will play a crucial role in our core infrastructure, enhancing our RESTful APIs and optimizing algorithms vital for global trade. Additionally, you will be instrumental in our transition to microservices, ensuring code quality and influencing the technical direction of our backend stack, which includes Ruby on Rails, PostgreSQL, Redis/Sidekiq, RabbitMQ, and Kubernetes. As a mentor, you will guide our team in mastering Ruby and embracing AI-assisted development techniques.

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.

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.

About the RoleThe Vice President of Technology Data Solutions Engineer at iCapital Network will play a pivotal role in driving the development of our software platforms. As a Full Stack Engineer, you will be responsible for end-to-end management of new features, system enhancements, and troubleshooting across various software applications. Collaborating closely with our Product Management team, you will detail functional requirements, assess ongoing work, and resolve issues identified during manual testing.ResponsibilitiesDevelop web applications using TypeScript for front-end and Python for back-end technologies.Exhibit a deep understanding of system design, architecture, and the ability to mentor junior engineers.

About Mollie Mollie’s mission is to make payments and money management simpler for businesses across Europe. Founded nearly 20 years ago, Mollie began by offering a straightforward, affordable alternative to traditional banking. Today, the company supports over 250,000 businesses with a comprehensive platform for payment processing and financial management. The team includes 850 professionals working in areas like product development, finance, customer support, commerce, and engineering, with offices from Lisbon to London. Role Overview: Application Engineer I (Lisbon) This role focuses on building and improving systems that drive Mollie’s products and services. Application Engineers at Mollie work closely with data, infrastructure, and product teams to create solutions that help customers manage payments and financial operations more efficiently. Main Responsibilities Design scalable systems: Architect and implement large-scale, data-driven systems for real-time monitoring, predictive analytics, fraud detection, and payment optimization. ML and AI infrastructure: Develop and maintain infrastructure to deploy and operate machine learning and AI models, supporting tasks like fraud detection and smart routing with high reliability. Product development: Build new features across Mollie’s products, such as payment method benchmarking, dynamic 3D Secure, and buyer intelligence, using data to create value. API and service design: Create and manage APIs and reusable services that help customers and internal teams make decisions and act quickly. Technical ownership: Lead technical projects from concept to delivery, upholding strong engineering standards throughout. Problem solving: Address complex challenges like anomaly detection and transforming transactional data into actionable insights, making financial processes smoother. What We’re Looking For Proactive mindset: Focus on delivering ongoing value to customers, balancing speed with quality. At least 2 years of experience developing large-scale applications, ideally with PHP or Java. Familiarity with Go, C#, or Python is a plus. Willingness to work in PHP or Java is important. Solid understanding of system design and architecture.

Join Our Innovative Team:TransPerfect, a global leader in translation technology with a dynamic startup culture, is on the lookout for a talented Backend Developer to enhance our cutting-edge Artificial Intelligence (AI) division. Here, you will play a pivotal role in advancing AI solutions within a worldwide organization. Since our inception over a decade ago, our AI team has been a cornerstone of innovation, focusing on machine translation, generative AI, natural language processing, and automation.We are seeking a seasoned backend developer who is eager to challenge the limits of technology and make a significant impact in the AI landscape. You will collaborate with a diverse and global team spanning the USA, Spain, Portugal, and India. If your passion lies in building robust and scalable AI solutions, this position is perfect for you.Role Overview:As a Backend Developer, your mission will be to tackle the

Join our dynamic team at Hanagroup as a dedicated Sushiman in the vibrant city of Lisbon. As a full-time Sushiman, you will play a crucial role in crafting exquisite sushi dishes that delight our customers. We are looking for a passionate individual who is eager to embrace the art of sushi-making and contribute to a fast-paced environment.

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.