Backend Developer for Innovative Research Group (B2B Contract)

Jobgether seeks a Backend Developer to join its Research Group on a B2B contract in Portugal. This position centers on building and maintaining backend systems that support ongoing research and innovation. Key responsibilities Develop and maintain backend infrastructure for research projects Collaborate with team members to deliver stable and effective solut…

Role overview jobgether is looking for a Senior Backend Engineer (B2B Contract) based in Portugal. This role centers on building and enhancing backend systems that serve business clients. The primary focus is on improving the platform’s performance and scalability to support ongoing growth. What you will do Develop and maintain backend solutions that power the B2B platform Collaborate with cross-functional teams to design and launch new features Help ensure the stability and reliability of existing systems Take part in technical decisions that shape the platform’s future Requirements Proven experience as a backend engineer in B2B settings Strong background in designing scalable, high-performance systems Ability to work well with product and engineering teams This contract position is open to candidates located in Portugal.

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 Bosch Group as a Backend Developer & Build Engineer where you will leverage your skills to develop robust backend solutions and streamline build processes. Engage in innovative projects, collaborate with cross-functional teams, and contribute to the creation of efficient software systems that drive our technological advancement.

Join our team as a Backend Developer specializing in Java and Spring Boot. In this role, you will be responsible for developing high-performance backend solutions and services that scale seamlessly.Your expertise in Java and Spring Boot will be crucial in designing, building, and maintaining applications that meet our clients' needs.

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.

Role overview Jobgether is searching for a Senior Backend Developer with strong Node.js skills to join a partner company in Portugal. This is a fully remote position focused on building backend services that are secure, scalable, and reliable to support the platform’s core functions. What you will do Shape and refine backend architecture with Node.js Enhance API performance and reliability Strengthen infrastructure for distributed and real-time systems Tackle microservices and complex backend challenges Collaborate with engineering teams across different regions Contribute to new features and platform improvements Work environment Remote role based in Portugal Join a distributed team of experienced engineers Autonomy and ownership are encouraged in daily work

Jobgether is looking for a Senior Node.js Backend Developer to join its team in Portugal. This position focuses on building secure and scalable backend systems that power digital finance services worldwide. The work is remote-first, with collaboration across multiple regions. Role overview Design and implement backend infrastructure using Node.js Develop mission-critical services and APIs for financial products used globally Prioritize security, scalability, and reliability in every solution Work closely with engineers from different locations Contribute to distributed systems and seek ways to improve performance Stay current with new technologies and apply them as needed Requirements Professional experience in Node.js backend development Solid background in backend architecture and distributed systems Comfortable tackling complex technical challenges Appreciates autonomy, takes ownership, and brings innovative ideas Works well in a remote-first setting Location This remote-first role is based in Portugal.

Join Generix Group as a B2B Integration Consultant where you will play a crucial role in implementing our innovative solutions for B2B system integration projects, including EDI, EAI, and electronic invoicing. You will collaborate closely with clients to understand their needs and deliver tailored solutions that enhance their operations. Key Responsibilities:Evaluate and comprehend customer requirements to recommend optimal solutions.Draft functional and technical specifications to guide project implementation.Oversee the execution, monitoring, and configuration of integration solutions.Coordinate deployment activities as required.Compile activity reports for management review.Maintain ongoing project documentation and client follow-up.

At Mindera, we are dedicated to assembling an exceptional team, and we invite you to be a part of it. We are in search of skilled Kotlin/Java Backend Developers who have a genuine enthusiasm for tackling intricate challenges. Within our Agile and collaborative setting, you will take charge of the technical components of development, creating high-quality software systems. Leveraging your proficiency in Kotlin or Java (if you are keen to work with Kotlin), you will design and implement resilient and scalable backend solutions. Your contributions will span the entire software development lifecycle, encompassing requirements gathering, design, coding, testing, and deployment. We prioritize collaboration, knowledge sharing, and continuous learning at Mindera. You will have the chance to collaborate with talented individuals, mentor junior developers, and play a crucial role in the team's growth and success. If you flourish in a fast-paced, innovative environment and have a passion for working with cutting-edge technologies, Mindera is the ideal place for you.

Join our dynamic Bolt for Business team in Lisbon as a B2B Business Development Manager. In this pivotal role, you will spearhead our sales initiatives, engaging with businesses to pitch, negotiate, and finalize deals tailored for mid-sized enterprises.As an integral part of our team, you will cultivate strong connections with clients, showcasing the unique features and advantages of our B2B offerings. If you possess a proven track record in sales within a fast-paced environment and are passionate about driving growth, we want to hear from you!

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.

Join our dynamic team at Bolt as a Senior Business Development Manager in beautiful Lisbon, Portugal. In this vital role, you will spearhead our sales initiatives by engaging with businesses, cultivating client relationships, delivering impactful pitches, negotiating terms, and successfully closing high-value contracts with large enterprises.As a key member of the Bolt Business team, you will not only gain insights into our SMB and Enterprise clientele but also foster strong connections while articulating the unique features and advantages of our B2B product suite. Your responsibility will involve targeting leading organizations within your region, identifying promising prospects, and collaborating closely with fellow Business Development Managers to secure the most lucrative opportunities.This position is ideal for a results-oriented individual with a proven track record in sales within a rapidly evolving organization. If you are eager to contribute to the growth of Bolt Business and play a pivotal role in our ambitious expansion plans, we want to hear from you!

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 payabl is hiring a Python Backend Developer to join its SWAT Team. This is a fully remote role available to candidates living in Portugal. What you will do Develop and maintain backend systems that power payabl’s payment products Collaborate with team members across departments to deliver dependable software Diagnose and resolve complex technical problems as they come up Support continuous improvements to the platform’s performance Location This position is remote and open to applicants based in Portugal.

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

Join Our Team as a Backend Developer!Location: Fully Remote (CET hours preferred)Compensation: €4,450 - €5,800 + stock optionsLanguage: Collaborate within a Russian-speaking teamAbout Fundraise UpFundraise Up is a pioneering global platform transforming the fundraising landscape for nonprofits. Our technology facilitates millions of dollars in donations monthly, empowering organizations to achieve their mission with innovations that enhance performance: rapid load times, increased conversion rates, and accessibility-first design.We are trusted by renowned nonprofits like UNICEF and the Alzheimer’s Association, achieving a stellar 4.9/5 rating across top software review platforms, recognized for both our impact and product excellence.A Truly Global ProductWe cater to the enterprise sector, supporting nonprofits across North America, the U.K., Australia, and Europe.Our sophisticated product ecosystem includes a modern checkout experience, customizable widgets, donor and organization portals, admin tools, and various internal applications, all powered by a robust backend.Our backend architecture leverages Node.js (Koa, NestJS) and MongoDB, while our frontend stack includes Webpack, Vue.js, and React, predominantly written in TypeScript. We utilize Kafka for high-throughput messaging and background processing alongside Bull (Redis), with analytics stored in ClickHouse and Elasticsearch enhancing our search capabilities.The TeamJoin a diverse team of over 160 product professionals, including 80+ engineers, primarily located in Spain, Poland, Portugal, Georgia, Armenia, Serbia, Turkey, and Cyprus. Our developers boast 5-10 years of experience and are committed to a culture of technical curiosity and knowledge sharing.Despite our size, we maintain a collaborative atmosphere where each task matters and every opinion is valued. We prioritize thoughtful teamwork, strong engineering practices, and a product-oriented mindset. Our biweekly engineering forums foster learning and celebrate accomplishments, ensuring you join a team where quality, mentorship, and respect are paramount.Your RoleAs a Backend Developer, you will play a pivotal role in architecting the engine that drives our global platform. You will tackle complex challenges within a high-load, distributed system, building and scaling the infrastructure that enables millions in donations. This is not a maintenance role; it’s about innovation and growth.

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

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.

Join Valtech as a Senior Experience Researcher!At Valtech, we are at the forefront of experience innovation, partnering with some of the world's most esteemed brands. We believe in fostering a culture that values growth, creativity, and meaningful contributions. As a Senior Experience Researcher, you will play a pivotal role in shaping the future of customer experiences through your insights and research.At Valtech, we offer an environment that encourages continuous learning and professional development. Your contributions will not only challenge conventional wisdom but also drive the next generation of digital solutions that transform industries.