Java Backend Engineer

About Us:TransPerfect, a prominent name in the translation software industry with an energetic start-up culture, is on the lookout for a talented and enthusiastic Backend Developer to join our dynamic Artificial Intelligence (AI) team. Here, you will have the chance to influence the future of AI within a global organization. With over a decade of experience and the development of initial machine translation models, our AI team has become a cornerstone of innovation in machine translation, generative AI, natural language processing, and automation.We are in search of a skilled backend developer eager to explore the limits of technology and create a meaningful impact in the AI domain. You will collaborate with a diverse and global team of experts based in the USA, Spain, Portugal, and India. If you are driven by a passion for building robust and scalable solutions that extend AI capabilities to users, this position is perfect for you.About the Role:In the role of Backend Developer, you will tackle the "last mile" of document processing: transforming complex, unstructured PDFs into well-formatted, editable .docx files. Your mission extends beyond mere text extraction; you will aim to faithfully reproduce the visual and structural intent of the original documents, including nested tables, multi-column layouts, font hierarchies, and styling.This position requires you to spearhead the research and development of our document conversion pipeline, balancing strategic decision-making with hands-on development (leveraging both engineering and AI skills).Your responsibilities will include:Comparative Analysis: Conduct an in-depth evaluation of commercial solutions (ABBYY, Adobe, AWS Textract) against open-source/AI-native options (Mistral OCR, Docling, Nougat, LlamaParse).Benchmarking: Set metrics for "format fidelity" to objectively assess how well various tools replicate headers, footers, tables, and styles.Pipeline Development: Create a Python-based workflow that integrates OCR engines with document generation libraries (such as python-docx or Pandoc).

About Us:TransPerfect stands as a premier name in translation technology, blending a dynamic start-up ethos with substantial industry expertise. We are on the lookout for an innovative and enthusiastic Backend Developer to enhance our cutting-edge Artificial Intelligence (AI) division. Within this forward-thinking team, you will have a unique opportunity to influence the trajectory of AI solutions on a global scale. Over the past decade, our AI team has evolved into a pivotal force for innovation, focusing on machine translation, generative AI, natural language processing, and automation.If you are an experienced backend developer eager to explore the frontiers of technology and leave a significant mark in the AI sector, we encourage you to apply. Join our diverse and global team of experts located across the USA, Spain, Portugal, and India. This role is perfect for those passionate about creating robust and scalable AI solutions.About the Role:As a Backend Developer, your main responsibility will be to tackle the final steps of document processing by transforming intricate, unstructured PDFs into well-organized, editable .docx files. Our aim extends beyond mere text extraction; we strive to faithfully recreate the visual and structural intent of the original documents, encompassing nested tables, multi-column layouts, font hierarchies, and styling.You will spearhead the research and development of our document conversion pipeline. This hybrid role requires you to be both a strategic thinker (keeping abreast of existing tools) and a hands-on developer (blending engineering and AI skills).Your key responsibilities will include:Comparative Analysis: Conduct thorough evaluations of commercial solutions (ABBYY, Adobe, AWS Textract) against open-source and AI-native alternatives (Mistral OCR, Docling, Nougat, LlamaParse).Benchmarking: Develop metrics for

About Us:TransPerfect is a renowned leader in the realm of translation software, embodying a lively start-up culture. We are on the lookout for an innovative and enthusiastic Backend Developer to enhance our cutting-edge Artificial Intelligence (AI) team. Join us in shaping the future of AI at a global scale. With over a decade of experience, our AI team has become essential to advancing machine translation, generative AI, natural language processing, and automation.We seek a skilled backend developer who is eager to push technological boundaries and make a significant impact in the AI domain. You will collaborate with a diverse team of professionals across the USA, Spain, Portugal, and India. If you are passionate about creating robust and scalable solutions that bring AI to life for users, this opportunity is for you.About The Role:In this position, you will tackle the complexities of document processing, specifically converting intricate, unstructured PDFs into well-formatted, editable .docx files. Your mission is to not only extract text but to faithfully reproduce the visual and structural intent of the original documents, encompassing nested tables, multi-column layouts, font hierarchies, and styling.Your responsibilities will include:Comparative Analysis: Conduct a thorough evaluation of commercial solutions (ABBYY, Adobe, AWS Textract) versus open-source/AI-native tools (Mistral OCR, Docling, Nougat, LlamaParse).Benchmarking: Develop metrics for “format fidelity” to objectively assess how well a tool recreates headers, footers, tables, and styles.Pipeline Development: Create a Python-based workflow that integrates OCR engines with document generation libraries, such as python-docx or Pandoc.

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

Aghanim is looking for a Senior Golang Backend Developer to help build and refine backend services that power billing and payment processing systems. This position is based in Lisbon. What You’ll Do Design and develop backend services focused on billing and payment flows Work with Go (Golang) as the primary backend language Integrate with a range of external payment providers and financial APIs Build and maintain systems that manage transactions, retries, reconciliation, and provider communications Implement and optimize billing logic and payment processing pipelines Emphasize reliability, accuracy, and observability in all financial operations Write maintainable, well-tested production code Monitor and troubleshoot payment and transaction workflows About the Role Develop scalable backend services using Golang Integrate seamlessly with multiple payment providers Ensure financial operations are reliable and accurate Handle transaction processing, including error handling and reconciliation Location This role is based in Lisbon.

Gapstars, a Netherlands-based leader in software development services, specializes in creating innovative remote teams in Sri Lanka and Portugal. With over 250 TechStars on board, we transform scalable software into high-performance products that are set to shape the future of technology. We partner with ambitious tech companies eager to dominate their markets.We are seeking a Medior Backend Software Developer to join PFM Intelligence, Europe’s foremost independent movement-data platform. PFM processes real-time footfall and occupancy data for over 7,800 locations in the Netherlands, Belgium, Germany, and the UK, and is evolving into a comprehensive Platform-as-a-Service (PaaS) provider. This role is pivotal to that transformation.In this position, you will focus on developing impactful backend integrations that link PFM’s core platforms and automate essential commercial processes. This hands-on role will allow you to take ownership of significant technical components and directly influence the scalability of our platform.You will collaborate closely with a senior engineer, a backend developer, a cloud migration expert, and an ERP application specialist in a fully remote, highly collaborative environment. Our engineers make technical decisions, and you will have the autonomy to design, build, and refine backend services that operate at scale in production.

payabl seeks a Senior Python Backend Developer to join its SWAT Team. This remote role is based in Lisbon, Portugal. The team works on backend systems that support client requirements and broader business objectives. Key responsibilities Collaborate with cross-functional groups to design and build backend applications in Python. Create features and tools aimed at improving system performance and reliability. Help optimize and integrate backend infrastructure as part of ongoing projects. Location This is a fully remote position located in Lisbon, Portugal.

Role Overview inetum2 is looking for a Senior Backend Developer (Database Administrator) to join the team in Lisbon. This position focuses on designing, implementing, and maintaining database systems that support reliable and efficient operations. What You Will Do Design and implement database architectures to support backend systems Maintain and optimize databases to ensure strong performance and data integrity Work closely with cross-functional teams to support new features and solutions Location Lisbon

Join inetum2 as a Generative AI Developer and be at the forefront of AI innovation! In this role, you will leverage cutting-edge technologies to create and enhance generative models, pushing the boundaries of artificial intelligence applications.

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.

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.

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.

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.

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.

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.

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.

Join Dashlane as a Junior Backend Software Engineer and embark on a journey to enhance user security and experience. In this role, you will collaborate with seasoned engineers to design and develop backend solutions that power our innovative password management platform.As a key member of our engineering team, you will engage in coding, debugging, and testing applications while contributing to architecture discussions. This is an excellent opportunity for those eager to learn and grow in a supportive environment.

OverviewJoin an innovative venture studio with a presence in Lisbon and New York, dedicated to harnessing exceptional European talent to create impactful companies. We are on the lookout for a Full-Stack Developer (Backend Focus) who will spearhead the development of an AI-driven content creation tool tailored for real estate professionals.If you're eager to contribute to a dynamic, agile team where you can take full ownership of the codebase and develop a product with evident market demand, this role is perfect for you.As the first dedicated developer, you will be instrumental in propelling our client’s AI venture into its next growth phase, managing the backend, databases, and crafting a user-friendly interface for real estate agents.You will transition from the initial core developer and play a pivotal role in shaping the product from inception to completion, with support from our venture studio’s team and resources.ResponsibilitiesCore Product DevelopmentTake full ownership of the product’s codebase, encompassing backend, database, and front-end interface.Rapidly deploy new features while ensuring scalability and maintainability in architecture.Backend & IntegrationsDevelop using PHP (8.3), Symfony (6.4), and MySQL.Guarantee seamless API integrations and dependable data flows.Interface Design & User ExperienceDesign and enhance the interface utilized by real estate agents.Convert customer feedback into clear, actionable features.Technical LeadershipAssume responsibilities from the previous core developer.Make pivotal decisions regarding architecture, tooling, and DevOps.Cross-Functional CollaborationCollaborate closely with the venture team and leadership.Adopt a product-oriented mindset, balancing speed, stability, and user experience.Requirements3–5 years of professional development experience (mid-level).Robust expertise in backend engineering while being proficient across the full stack.Enthusiasm for building within a small, entrepreneurial team.Interest in creating clean, usable interfaces (design experience is a plus).Curiosity, humility, and a desire to evolve into a technical leadership role.Fluent in English communication.Based in Lisbon, Portugal (hybrid: 4 days on-site).Preferred SkillsExperience with cloud/DevOps (AWS, Docker, CI/CD).Familiarity with AI/LLM integrations.Background in startups or venture-backed environments.BenefitsEquity stake in the venture along with a competitive salary.Tax support (accountant fees, tax returns).

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.