Tech Lead / Senior Golang Developer for Payments and Billing Systems

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 …

We are seeking enthusiastic and skilled Junior Software Engineers to join our team in crafting innovative SaaS-based solutions aimed at combating money laundering and financial crime. Our mission is to unveil the truth and create a safer world by ensuring that illicit funds do not reach the hands of wrongdoers.As a Junior Software Engineer, you will:Collaborate with a talented team of software engineers.Develop new features that empower our platform to analyze data about individuals, apply machine learning models to classify behaviors, and integrate this with our existing datasets. Your contributions will assist our clients in identifying negative actions, understanding what occurred, and pinpointing when these actions took place.Play a key role in delivering new functionalities and maintaining our platform while we innovate with new technologies and scale our operations.Quickly learn and adapt to the technologies we employ for coding and deploying to Kubernetes.Engage in sprint planning and demonstrate the features you’ve developed to stakeholders.Take ownership of your code quality, ensuring rigorous testing and maintaining system integrity.Follow and propose enhancements to best practices for transitioning code from initial requirements to deployed services in production.Our Tech Stack:We utilize a technology stack optimized for public cloud architectures, particularly AWS and GCP.Kotlin is our primary language for backend services development.Our database technologies include significant use of relational databases like Postgres and a distributed SQL database, Yugabyte.We employ an event-sourced model with Kafka for our communication bus and gRPC for intra-service communication.Modern observability solutions are built on Grafana Cloud, and we utilize ArgoCD for code deployment.We prioritize engineering excellence, striving to deliver the highest quality code and solutions to our customers.

Join inetum2 as a Senior Outsystems Developer and Tech Lead, where you will play a pivotal role in shaping innovative solutions and leading a dynamic team of developers. As an integral part of our Lisbon office, you will leverage your expertise in Outsystems to design and implement high-quality applications that meet our clients' needs.

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.

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 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 our dynamic team as a Senior .NET Software Engineer at inetum2, where you will have the opportunity to enhance and develop innovative software solutions. You will be responsible for designing, coding, and implementing high-quality software applications using .NET technologies.We are looking for passionate individuals who thrive in a collaborative environment and are eager to push the boundaries of technology. Your expertise will play a crucial role in our projects and will directly impact client satisfaction and project success.

Join our dynamic team as a Senior Oracle HCM Developer where you will be responsible for designing, developing, and supporting Oracle HCM Cloud solutions within our client's international HR ecosystem.The ideal candidate will possess a solid understanding of HR processes and hands-on experience with Oracle HCM modules, ensuring that the platform meets business needs and operates efficiently.

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 our innovative team as a Senior Software Engineer at Inetum in Lisbon. We are seeking a passionate individual who excels in software development and thrives in a collaborative environment. As a Senior Software Engineer, you will play a pivotal role in designing and implementing cutting-edge software solutions that meet our clients' needs.Ideal candidates will possess a strong background in software engineering, a knack for problem-solving, and the ability to mentor junior engineers. You will work closely with cross-functional teams to deliver high-quality products while ensuring best practices in software development.

Join our innovative team as a Senior Network Engineer in Product Development, where you will leverage your expertise to enhance our next-generation network solutions. Your role will involve working with industry-standard practices, interfaces, operating systems, and protocols including DOCSIS 3.0/3.1, SIP, and PacketCable.We seek candidates with a robust understanding of TCP/IP, IPv6, BGP, OSPF, Multicast, and MPLS, with working knowledge of IS-IS. Your extensive experience in Ethernet and IP services such as Ethernet Private Line, Private LAN, Dedicated Internet, and Managed Router will be crucial for success in this role.As a Subject Matter Expert, you will support Layer 2 and Layer 3 protocols essential for Business Services, providing guidance on OAM and CFM, as well as RFC2544, Y.1564, and Y.1731.This position is centered around Network Automation, Software Defined Networks, and Network Virtualization within our Commercial Services line of business. You will play a key role in evaluating, designing, trialing, and deploying our next-generation products and services.Your hands-on experience with national Metro-E networks across multiple vendors, ideally within a service provider environment, will be beneficial. Collaborating with architecture, business units, service delivery, and operations teams, you will drive the ongoing evolution and support of our existing platform.The ideal candidate will possess practical knowledge of managed services for customer network implementations.

Why Choose VerifoneWith over three decades of excellence, Verifone has carved a prominent niche in the electronic payment technology sector. Recognized as a leading brand in electronic payment solutions, we are one of the largest global providers of electronic payment systems.At Verifone, our vibrant and diverse work environment fosters a results-driven culture where employees are empowered to excel. Collaborating with top retailers, merchants, banks, and partners worldwide, we are committed to delivering innovative payment solutions. Our obsession with excellence and customer satisfaction drives our team to lead the industry through ingenuity and an ambitious mindset. Whether it’s advancing secure payment systems or exploring new market opportunities, every Verifone employee is dedicated to the success of our customers and partners. This passion for innovation fuels personal and professional growth.We embrace an in-office culture, recognizing the immense benefits of co-location for career advancement and business outcomes. Currently, we offer a hybrid work schedule, with continual evaluations of our attendance policy.

Join inetum2 as a Senior API and Integration Architect in Lisbon and take the lead in designing innovative API solutions that drive business success. Collaborate with cross-functional teams to ensure seamless integration and optimal performance of our systems. Your expertise will guide our strategy in leveraging APIs for enhanced functionality and efficiency.

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 Cross Border Talents as a Talend Developer in Lisbon, Portugal, and take part in an exciting opportunity with one of the world's leading insurance and asset management groups. We're looking for a dedicated professional who thrives in a full-time role at our Lisbon office.Key Responsibilities: Design, develop, and document Talend ETL processes, technical architecture, and data pipelines, while enhancing performance scalability using Talend integration tools. Repoint data objects within workflow scripts mapped to MS SQL Server. Implement business logic for data mappings to facilitate the loading of data from source to target repositories. Engage with business stakeholders to clarify requirements and address any issues. Provide technical expertise on data models, data flow diagrams, and database design. Lead test planning, design, and execution, including performance and stress testing, while implementing and maintaining quality test automation for both client and server systems. Ensure high standards of data quality, integration, management, and big data processing. Write and manage ETL jobs for extracting data from multiple sources and loading it into data marts. Oversee technology management within projects, offering technical guidance and solutions to ensure successful project completion. Qualifications: A minimum of 3 years of experience in Talend development. Proven track record in building robust data pipelines for storage, preparation, and processing of data. Expertise in establishing data quality processes. Strong data modeling skills. Experience in preparing data for prescriptive and predictive modeling. Solid understanding of data acquisition and retention strategies. Benefits: Hybrid working model. Relocation assistance available. 14 months of salary. Comprehensive medical insurance.

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 altersolutions as a Mendix Developer, where your skills will help shape innovative solutions. We are looking for talented individuals who are passionate about low-code development and eager to contribute to exciting projects.

Join our dynamic team as a T-SQL Developer at Altersolutions! We are looking for a skilled professional who is passionate about database development and optimization. In this role, you will be responsible for designing, implementing, and maintaining T-SQL scripts and stored procedures, ensuring data integrity and performance. Collaborate with cross-functional teams to deliver high-quality solutions that meet client needs.

Join the innovative team at inetum2 as a Trainee Developer! We are looking for passionate individuals who are eager to learn and grow in the exciting field of software development. As a French speaker, you will have the opportunity to collaborate with a diverse team and contribute to impactful projects.

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.