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AirApps

Full-time|On-site|Lisbon

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.

Mar 25, 2026

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Senior QA Engineer - Full-Stack and Backend Specialist

Renesa Electronics

Full-time|On-site|Lisbon

Renesa Electronics is seeking a Senior QA Engineer in Lisbon to help uphold quality across both backend and full-stack systems. The role centers on supporting a broad technology stack and ensuring reliable, well-tested products. Key responsibilities Collaborate with cross-functional teams to shape and execute effective test strategies. Create and maintain automated test scripts for backend and full-stack components. Carry out comprehensive testing to support and enhance the product suite. Who will succeed This position fits someone who enjoys tackling complex problems and working with colleagues from different backgrounds. Adaptability and a willingness to take on new challenges are important as the team continues to grow.

Apr 22, 2026

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Senior QA Automation Engineer

Remote People

Full-time|Remote|Lisbon (Office) or Europe (Remote)

About Remote PeopleAt Remote People, we are dedicated to creating the infrastructure that empowers global teams. Our technology simplifies global payroll, benefits, taxes, and compliance, allowing businesses to hire the right talent from anywhere in the world seamlessly.If you share our passion for enabling individuals to find their dream jobs from anywhere, we encourage you to apply!We value diversity and are committed to building a global team that reflects a multitude of backgrounds, perspectives, and experiences. We warmly welcome applications from all individuals, regardless of gender, ethnicity, sexual orientation, religion, civil or family status, age, or disability. Joining Remote People means becoming part of a vibrant, international community.

Mar 5, 2026

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Senior Backend Engineer

Kaizen Gaming

On-site|On-site|Lisbon, Portugal

Join the Kaizen Gaming Family!At Kaizen Gaming, the driving force behind Betano, we stand as one of the largest GameTech companies globally, operating across 19 markets. Our commitment to leveraging state-of-the-art technology empowers us to deliver unparalleled experiences to our millions of valued customers.Our vibrant team of over 2,700 diverse 'Kaizeners', hailing from more than 40 nationalities and spanning three continents, is what sets us apart. We take pride in being recognized among the Best Workplaces in Europe and have earned the prestigious Great Place to Work certification across our offices. Are you ready to Press Play on your potential?About the RoleAs a Senior Backend Engineer, you will be an integral part of a self-sufficient Agile team, collaborating closely with the Product Owner, Agile Delivery Lead, Automation Testers, and fellow Software Engineers to create a competitive edge for Kaizen while delivering a unique online experience to our customers. You will also engage with talented backend professionals within our Backend Chapter.Your Responsibilities Include:As a Senior Software Engineer at Kaizen, you will manage a variety of projects, ranging from our customer-facing websites and mobile applications to our internal tools and backend services, all designed to handle high volumes of traffic.Take full ownership of our applications throughout an engaging development journey.Develop innovative solutions from concept to production.Transform requirements into efficient and sophisticated technological systems, leveraging our large-scale, highly available infrastructure.Design, build, and maintain efficient, reusable, and reliable code.Explore new technologies to discover efficient solutions for everyday challenges.Deliver high-value features swiftly.Challenge existing processes and foster improvement within the team and product.

Feb 9, 2026

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Backend Software Engineer

Air Apps

Full-time|On-site|Lisbon

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.

Feb 17, 2026

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Java Backend Engineer

inetum2

Full-time|On-site|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.

Jan 20, 2026

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Senior Backend Engineer at Riskified | Lisbon

Riskified

Full-time|On-site|Lisbon

Role overview Riskified seeks a Senior Backend Engineer in Lisbon to help build and maintain the backend systems that power its fraud prevention platform. The position centers on improving efficiency and reliability for clients around the globe. This work supports the technical foundation that enables Riskified’s services to scale and perform. What you will do Design, develop, and maintain backend systems for the core platform Collaborate with cross-functional teams to deliver technical solutions Tackle complex backend challenges to support platform growth and stability Contribute to the adoption and implementation of new technologies Impact Senior Backend Engineers at Riskified influence both product direction and client outcomes. The work directly supports Riskified’s ongoing efforts to lead in fraud prevention and deliver reliable results to customers.

Apr 23, 2026

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Backend Software Engineer

Dashlane

Full-time|On-site|Lisbon, Portugal

Join Dashlane as a Backend Software Engineer and be part of a dynamic team dedicated to enhancing digital security for our users worldwide. In this role, you will design, develop, and maintain scalable backend systems that support our innovative applications. Your contributions will directly impact the user experience and the overall success of our products.

Apr 7, 2026

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Backend Engineering Intern

evolution

Internship|On-site|Lisbon

Internship Overview evolution is looking for a Backend Engineering Intern to join the team in Lisbon. This position offers hands-on experience with real projects and the chance to work closely with seasoned engineers. What to Expect Collaborate with the engineering team on active backend projects Gain practical skills and learn from experienced colleagues Contribute ideas and support ongoing development work This internship is designed for those eager to grow technical abilities in a supportive, team-driven setting.

Apr 17, 2026

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Senior Backend Engineer - Golang

Emma Sleep

Full-time|On-site|Lisbon

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.

Apr 22, 2026

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Junior Backend Engineer

Kaizen Gaming

On-site|On-site|Lisbon, Portugal

Join Our Team at Kaizen GamingKaizen Gaming, the driving force behind Betano, stands as one of the largest GameTech companies globally, actively engaging in 19 markets. Our commitment to harnessing advanced technology allows us to deliver exceptional experiences to millions of customers who rely on us for their entertainment.With a vibrant team of over 2,700 Kaizeners from more than 40 nationalities across three continents, we take pride in our diversity and innovation. Recognized as one of the Best Workplaces in Europe, and certified as a Great Place to Work, our environment promises excitement and growth every day. Are you ready to Press Play on your potential?About the RoleDesign, develop, and maintain high-quality, efficient, and reusable code.Create interfaces that connect components of diverse subsystems within a high-transaction production environment.Optimize application performance, quality, and responsiveness.Diagnose and resolve bottlenecks, bugs, and complex challenges.Our Technology StackOur services are primarily developed using C# / ASP.NET, with newer implementations utilizing .NET Core. The front-end is powered by Vue.js for new applications, while legacy systems employ server-rendered (Razor) views combined with jQuery and Knockout.js. We rely on MS SQL Server for data storage, complemented by Redis and ElasticSearch when appropriate. RabbitMQ serves as our message broker, and we utilize GitLab for version control and CI, alongside the Atlassian suite for ticketing and documentation.Your QualificationsA minimum of 1 year of development experience with C# / ASP.NET / MVC (either full framework or .NET Core).Fundamental understanding of web technologies, such as HTTP.Experience in data access, including databases and APIs.Familiarity with unit testing is a plus.Perks of Joining Kaizen Gaming Flexible hybrid working model. Personalized onboarding support through a buddy system. Attractive salary package with performance-based bonuses.‍ Comprehensive health and life insurance for you and your family. Monthly meal allowance.⭐ Continuous development through our 360° feedback framework. Unlimited access to Udemy and ongoing training opportunities.

Feb 4, 2026

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Backend Engineer (Python or Go) | Lisbon

tgs

Full-time|On-site|Lisbon, Lisboa, Portugal

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

Apr 17, 2026

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Senior Backend Software Engineer

Renesas Electronics Corporation

Full-time|On-site|Lisbon

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.

Apr 30, 2026

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DevOps Engineer - Backend Specialist

airapps

Full-time|On-site|Lisbon

airapps is looking for a DevOps Engineer with a focus on backend systems to join the team in Lisbon. This position centers on building and maintaining backend infrastructure that supports the company’s applications and services. Role overview The DevOps Engineer - Backend Specialist will take charge of implementing backend solutions that scale and remain reliable. Collaboration with development teams is a key part of the job, especially when refining deployment workflows and improving infrastructure. What you will do Develop and maintain backend systems to support business needs Work alongside developers to streamline deployment processes Contribute to infrastructure enhancements for better reliability and scalability Help ensure smooth, uninterrupted operation of applications and services Location This role is based in Lisbon.

Apr 29, 2026

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Backend Engineer at Riskified | Lisbon

Riskified

Full-time|On-site|Lisbon

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

Apr 20, 2026

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QA Automation Engineer at Air Apps | Lisbon

Air Apps

Full-time|On-site|Lisbon

About Air AppsAt Air Apps, we embrace the power of innovation and speed. Founded by a passionate family, our mission is to revolutionize planning with the world's first AI-powered Personal & Entrepreneurial Resource Planner (PRP). Since our inception in Lisbon, Portugal in 2018, we've proudly maintained our independence and have achieved over 100 million downloads globally.Our commitment to long-term vision inspires us to continuously challenge established norms, leveraging AI-driven solutions that significantly impact lives. Here, you will be a key player in developing transformative products that empower individuals worldwide.Join us on this exciting journey as we redefine resource management and positively influence lives.The RoleAs a QA Automation Engineer at Air Apps, you will be instrumental in developing and sustaining automated test frameworks and regression test suites that uphold the highest quality standards for our applications. Collaborating closely with developers, product managers, and QA teams, you will implement automated testing strategies, enhance test coverage, and streamline testing efficiency.Your work will have a direct impact on the stability, performance, and reliability of our web and mobile applications.ResponsibilitiesDesign, develop, and maintain automated test frameworks for web and mobile applications.Create and execute automated regression, functional, performance, and API tests.Integrate automated tests into CI/CD pipelines for continuous testing.Collaborate with development teams to ensure features are testable and defects are identified early.Analyze test results, troubleshoot failures, and communicate issues to development teams.Enhance test coverage by identifying critical scenarios and edge cases.Work with cross-functional teams to establish quality standards and best practices.Stay current with emerging automation tools, frameworks, and testing methodologies.

Feb 17, 2026

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Backend Engineer (Python or Go) | Lisbon

TransPerfect

Full-time|On-site|Lisbon, Lisboa, Portugal

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.

Apr 17, 2026

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Senior Backend Software Engineer

Tripadvisor, Inc.

Full-time|Hybrid|Lisbon

Join the Tripadvisor Group, where we connect people with unforgettable experiences and strive to be the world's most trusted source for travel and adventure. Utilizing our vast portfolio of travel brands and advanced technology, we aim to engage a global audience and facilitate meaningful connections with our partners across diverse travel categories including accommodations, restaurants, and unique experiences. The Tripadvisor Experiences Engineering team, distributed across Europe, plays a pivotal role in managing Tripadvisor.com and our mobile applications, alongside the supporting infrastructure. We empower operators to grow their businesses while enabling third parties to leverage our comprehensive inventory. Our dedicated team provides essential tools that support our customer service representatives in delivering exceptional service to travelers and operators worldwide. We are in search of a Senior Software Engineer to become part of our dynamic team. This position is available to candidates who can commute (generally within a 2-hour radius) to one of our office hubs in Lisbon. We appreciate flexibility in work arrangements and value the importance of in-person interactions for collaboration and connection. Expect a remote-first work model complemented by periodic office gatherings for team planning and engagement. At Tripadvisor, our engineers thrive on tackling a diverse array of technical challenges. This backend-focused full-stack role primarily involves backend development, with opportunities to engage in frontend projects as well. While a willingness to learn is essential, expertise in frontend development is not required at the outset, as we offer on-the-job training. Our collaborative environment is designed for productivity, where engineers work closely with product managers and designers throughout the entire software development lifecycle—from design and coding to testing and deployment. Most engineers deploy code to production every few days within our daily release cycle. The technology stack at Tripadvisor includes Java, React, Typescript, GraphQL, Kubernetes, SQL, and NoSQL databases on AWS. While strong proficiency in Java is mandatory, familiarity with the entire stack is not a prerequisite; a passion for learning is what we value most. Why Work with Us? Competitive compensation packages, including base salary, annual bonuses, and more. “Work your way” approach offering flexibility to cater to your lifestyle and needs.

Mar 2, 2026

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Backend Software Engineer Internship

Dashlane

Internship|On-site|Lisbon, Portugal

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.

Mar 10, 2026

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Staff Backend Engineer (Django or FastAPI)

Renesa Electronics

Full-time|On-site|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.

Apr 9, 2026

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