JAVA SOFTWARE ENGINEER– TERMINAL SYSTEMS

remote type Hybrid locations Porto - Portugal time type Full time posted on Posted Today job requisition id JR08412 About Us: The payments market is the most exciting technology market in the world today for good reason. McKinsey values it globally at over $2 trillion and it’s growing between 13-15% year-on-year. Some of the largest most dynamic brands are investing in this sector; Apple has ApplePay, Google has GooglePay, Amazon has AmazonPay, and it’s not just the Silicon Valley brands. Tencent owns WeChatPay, Alibaba owns Alipay and digital disruptors like Square, Stripe and Adyen all invest millions to grow the payments market. Planet are a technology company that’s transforming payments by putting the customer experience first. We help our customers deliver a better experience for guests, shoppers, and consumers everywhere. We operate in a market that continues to evolve and expand, partnering with the world’s most prestigious brands across Retail and Hospitality, and with a network of Financial Services partners worldwide. To meet consumer demands, payments must be simple, safe, and invisible. The only way to do this is to fully embed payments in the software that runs business. By combining software and payment technology, Planet’s creating a world of connected commerce, that makes payments feel good. We’re growing organically, and with strong Private Equity investors, Advent International and Eurazeo, we’ve the financial capital and expertise to grow our capabilities and reach through acquisition. Role Overview: As part of the Terminal Development Team you will assist in developing and optimizing applications, supporting the design of solution architectures, and collaborating with stakeholders. You will review code along with senior developers, write basic documentation, and participate in testing and debugging to ensure application stability. Additionally, you will work on multiple projects, helping the team meet deadlines, and providing support during busy periods or sprint cycles. What You Will Do Develop and optimize applications within the Terminal Development Team. Participate in the design and creation of solution architectures for new features and integrations. Collaborate with internal and external stakeholders, providing technical expertise during meetings and project discussions. Analyze and interpret technical specifications, including payment flows, protocols, and architecture diagrams to implement effective solutions. Perform code reviews, working closely with senior developers to ensure coding standards, best practices, and performance optimizations are followed. Write and maintain technical documentation for architectures, integrations, and developed solutions. Work across multiple projects simultaneously, communicating directly with Project Managers to meet deadlines and deliver high-quality solutions. Participate in unit testing and debugging to ensure application stability and performance. Work in a collaborative manner with the rest of Development team and assist colleagues as required and help alleviate acute resource constraints, or project sprint cycles. Who You Are Bachelor’s degree in computer science, engineering, or equivalent experience. 2+ years of experience in Java development. 1+ year of experience in Android development using Android Studio and related SDK tools. Proficiency in Java, with an understanding of object-oriented programming principles and best practices. Experience in Android development, including debugging, memory management, and performance optimization. Experience in multithreading. Knowledge of REST WebServices. Familiarity with version control systems such as Git, and best practices for collaborative development. Understanding of security and base encryption standards. Knowledge of network protocols and communication methods, such as TCP/IP, SSL, TLS, HTTP, HTTPS, and Serial. Familiarity with UML diagrams (state charts, use cases, activity and sequence diagrams). Knowledge of Linux operating systems and experience developing in a Linux environment. Other valued aspects: Knowledge on Kotlin, C++, React/Vue and Spring/Micronaut. Excellent analytical skills and the ability to solve technical challenges efficiently and independently. Strong communication skills, capable of writing clear and concise technical documentation (English proficiency mandatory). Skilled multi-tasker, with the ability to prioritize and shift tasks effectively in a fast-paced environment and work across multiple projects. Adaptable and eager to learn new technologies and concepts within the payment industry. A proactive team player, willing to assist colleagues, reach consensus, and share knowledge in a collaborative development environment. Why Planet : Planet is an equal opportunity employer where diversity is valued, and all employment is decided based on qualifications, merit, and business need. Come and grow your career in the most exciting, fast paced technology market, with a business that delivers feel-good connected commerce. We would love to hear from you – Apply now. About Us Company Background Planet provides integrated software, payment and technology solutions for its customers in the Hospitality and Retail sectors and worldwide via a network of global Financial Services Partners. Founded over 35 years ago, we have evolved our services, delivering an innovative digital commerce platform that puts customer experience first. With headquarters in London and around 3,000 expert employees located across six continents we serve customers in over 120 markets.