• Work on developing applications on the OutSystems platform, with supervision and guidance from more experienced developers. • Implement low- and medium-complexity features, following defined requirements and standards. • Perform corrective and evolutionary maintenance on existing systems. • Assist in interpreting functional requirements, understanding workflows and business rules. • Help translate requirements into simple technical solutions that align with the OutSystems platform. • Participate in understanding sessions with business analysts and technical teams. • Support the development and consumption of integrations with REST and/or SOAP APIs, under guidance. • Assist in creating and maintaining data models, entities, and simple queries. • Ensure correct usage and update of information within applications. • Execute unit and functional tests to validate developed features. • Support user acceptance activities, bug fixes, and adjustments reported by users and the QA team. • Follow platform quality, usability, and best-practice standards. • Assist in analyzing and resolving incidents and issues in development or test environments. • Provide technical support for systems developed in OutSystems, under supervision. • Learn to interpret platform logs and error messages. • Collaborate with mid- and senior-level developers, business analysts, and other IT areas. • Adhere to the development, versioning, and documentation standards defined by the team. • Help prepare basic technical documentation for developed features. • Participate in training, upskilling, and continuous improvement initiatives. • Progressively develop technically to take on higher-complexity tasks over time.

Role Description We are seeking a Senior Software Engineer to join a high-impact digital payments modernization program supporting the integration of a major card network into one of the largest financial institutions in the United States. This is a hands-on engineering role at the intersection of legacy and modern infrastructure, where you will contribute to both the reliability of mission-critical payment systems today and help shape the architecture that will power them tomorrow. You will work across scalable backend services, performance testing frameworks, and application engineering — with real opportunity to grow your skills on modern cloud-native technologies as the program evolves. WHAT YOU'LL DO - Scalability, Performance Testing & Validation - Design and execute enterprise-grade performance testing strategies for payment processing services, defining frameworks, tooling, and success criteria from the ground up. - Identify performance bottlenecks across legacy and modern service layers and drive measurable improvements through analysis and targeted optimization. - Instrument and validate services running on Java, Oracle, Tomcat, and WebSphere as well as modern workloads running on PostgreSQL and OpenShift. - Collaborate with backend engineers to ensure scalability requirements are met across all environments prior to release. - Translate performance findings into clear recommendations for engineering leads and stakeholders. - Application Engineering - Build and maintain full-stack backend services supporting card network integration, working primarily in Java with PostgreSQL and OpenShift Container Platform (OCP). - Contribute to application modernization efforts, migrating and re-platforming services from legacy infrastructure to cloud-native environments. - Leverage AI-assisted development tooling (including GitHub Copilot) to improve development velocity and code quality. - Participate in code reviews, architectural discussions, and cross-team technical planning sessions. - General Engineering - PCI data purging pipelines and event-driven architecture patterns including token removal and event consumption. - Work with event-driven services running on OpenShift and Oracle and PostgreSQL backends to support data lifecycle and compliance requirements. - Serve as a flexible, senior contributor across teams where engineering depth and experience are needed most. Qualifications - 5+ years of professional software engineering experience, primarily in Java. - Strong working knowledge of relational databases — Oracle and/or PostgreSQL required. - Experience deploying and operating services in containerized environments (OpenShift, Kubernetes, or equivalent). - Familiarity with legacy enterprise application servers — Tomcat and/or WebSphere experience a plus. Requirements - At least one enterprise-level performance testing engagement — defining strategy, selecting tooling, executing tests, and presenting findings. - Experience with performance profiling, load testing, and bottleneck resolution in high-throughput, distributed systems. - Ability to design logical, streamlined test frameworks from scratch and operate with minimal guidance. - Background in digital payments, card processing, or financial services technology strongly preferred. - Understanding of PCI compliance requirements and secure data handling practices. - Familiarity with event-driven architecture patterns and OpenShift-based eventing. - Demonstrated ability to work effectively in large, matrixed program environments with multiple teams and stakeholders. - Strong written and verbal communication skills; able to translate technical complexity for non-technical audiences. - Comfortable operating in environments with evolving requirements and ambiguity. Benefits - Competitive compensation. - Professional development opportunities. - Flexible work arrangements.

• Your own participants: You mentor assigned participants, know their strengths, identify where they’re stuck, and actively guide them through the course • 1:1 mentoring: You hold regular sessions with participants — not one-size-fits-all, but tailored to their current level and challenges • Code review & assignment checks: You provide honest, constructive feedback on submitted assignments and help build and expand real coding skills • Documentation: You record progress and session content so nothing is lost and the learning path remains transparent • Curriculum optimization: You provide feedback on learning materials and help improve them • Team collaboration: You are part of a committed education team and exchange weekly with other mentors and experts about participants and course content

Role Description 99x Brazil is on the lookout for a skilled Senior / Lead Outsystems Developer. As a part of our dynamic team, you will play a vital role in the design, development, and maintenance of applications using the Outsystems platform. You will collaborate with a talented group of developers and designers to deliver high-quality software solutions that meet client requirements. In this job you will master OutSystems Platform technology in conjunction with modern software engineering practices for developing web and mobile business applications in the context of agile projects. Responsibilities - Develop solution features following OutSystems development best practices - Work as an IT expert and evangelist while supporting customers in their technical evaluation - Understand the customers' IT architecture in order to clarify the strategic fit of the OutSystems technology with their IT ecosystem Qualifications - Bachelor's degree in Computer Science or a related field - Fluency in English, written and spoken (mandatory) - Great communication skills - Transparency and ability to establish trust and supportive relationships - Strong quality orientation and attention to detail - Understanding of solution architecture and design, and web and mobile application performance - More than 3 years experience in web and/or mobile application programming - BS/BA in computer science or similar - Knowledge of web development or mobile app development, business modeling, database concepts and project management - preferably using Agile Development Methodologies - Deep insight on technical architectures, IT products and product positioning - Proficiency with at least one programming language: PHP, C# or Java - Proficiency in web based languages: JavaScript, CSS, HTML - Knowledge in ASP.NET - Programming with databases: SQL Server, Oracle or MySQL - Knowledge in Database Modeling - OutSystems development experience and certifications are a plus - Degree in Computer Science or Engineering. Academic achievements valued Benefits - Your pick when it comes to employment models: CLT/PJ/Cooperativa - We provide resources for you to grow and learn on the job, including online courses, mentoring, and the latest gen laptops - A fully remote work environment with flexible working hours - Bonus for any referrals that we end up hiring