Role Description Modus Create is seeking a Principal Java Software Engineer to lead the design and delivery of complex, high-performance backend systems. You'll own greenfield Spring Framework components from architecture through production, setting technical direction for the engineering team while staying hands-on with critical implementation work. This is a role for a deeply experienced Java architect who can navigate ambiguity, mentor engineers, and deliver production-grade systems that handle extreme scale and throughput demands. - Be a technical leader within the Software Engineering team, multiplying your impact through architecture, mentorship, and decisions that shape how we build. - Work alongside experienced engineers who respect technical rigor, challenging decisions and raising architectural concerns with confidence. Qualifications - 10+ years professional Java development with deep, hands-on experience across the full platform stack. - Expert-level knowledge of the Spring Framework ecosystem (Spring Core, Spring Boot, Spring Data, Spring Security, Spring Cloud) with experience architecting large-scale applications using these libraries. - Proven track record designing and building greenfield Spring applications that handle high request volumes and extreme throughput; not just maintenance work, but architecture from the ground up. - JVM expertise: configuration, tuning, garbage collection, memory management, and performance optimization in production systems. - Experience designing and implementing robust API integrations including OAuth 2.0, error handling strategies, retry logic, progressive backoff, and circuit breaker patterns. - Experience creating AI-powered applications, integrating with AI tools and services, or creating or using MCP servers. - Hands-on cloud platform experience—deploying, configuring, troubleshooting, and optimizing applications in production cloud environments. - Demonstrated mentorship of engineers; ability to elevate team technical capability through code review, pairing, and guidance. - Strong collaborative mindset; comfortable operating in flat team structures and advocating for technical decisions without requiring process scaffolding. - Experienced using AI-assisted coding tools (GitHub Copilot, Claude, etc.) with human-in-the-loop best practices; able to leverage AI for accelerated delivery while maintaining code quality, security, and architectural integrity. - Track record of shipping production systems; able to balance architectural ideals with delivery constraints and business timeline. Requirements - Design and architect complex Spring Framework components for greenfield systems; make trade-off decisions balancing performance, maintainability, scalability, and time-to-delivery. - Own end-to-end delivery of critical backend features, including implementation, testing, performance validation, and production support. - Research and evaluate emerging Java and Spring Framework technologies; prototype new patterns and tools and recommend adoption when justified. - Implement best practices for high-load systems: API gateway patterns, resilient integrations, efficient database access, caching strategies, and observability. - Conduct technical design reviews with engineering peers; identify architectural risks and propose solutions. - Mentor engineers through code review, pair programming, and technical guidance; model problem-solving approaches and engineering discipline. - Contribute to team standards: code quality, testing practices, deployment patterns, documentation; lead by example rather than policy. Benefits - Architecting systems that scale; owning the decisions that let an application handle 10x load without falling over. - Solving hard problems in Spring and the JVM; diving deep into performance bottlenecks, concurrency issues, and integration challenges. - Mentoring engineers and watching them grow; knowing that your guidance directly improved their capabilities and career trajectory. - Building clean, maintainable code that teams will want to own and evolve; seeing your architectural choices simplify future work. - Exploring emerging technologies (Spring AI, MCP servers, new JVM runtimes) and deciding when they're worth adopting versus when they're noise. What Success Looks Like - You've shipped at least one greenfield Spring application that handles production traffic at significant scale (hundreds of requests per second, petabyte-class data volumes, or equivalent complexity). - Engineers on your team can articulate the architectural decisions behind the systems you've built and why those decisions were made. - Your code reviews result in better code and better engineers; reviewees understand not just what to change, but why. - Your team ships faster and with higher confidence because they have clearer architectural patterns and fewer re-do cycles. - You've successfully integrated third-party APIs at scale; your error handling and resilience patterns have proven themselves under real failure conditions.

Our vision is to transform how the world uses information to enrich life for all . Micron Technology is a world leader in innovating memory and storage solutions that accelerate the transformation of information into intelligence, inspiring the world to learn, communicate and advance faster than ever. As a Design Engineer at Micron Technology, Inc., you will be responsible for designing and analyzing digital and analog circuits used in the development of memory products. We are engaged in developing groundbreaking silicon-to-systems solutions - right from technology development and advanced memory designs to product development, systems design and validation resulting in world class memory solutions. In this position, you will collaborate with Micron's various design and verification teams all over the world and support the efforts of groups such as Product Engineering, Test, Probe, Process Integration, Assembly and Marketing to proactively design products that optimize all manufacturing functions and assure the best cost, quality, reliability, time-to-market, and customer satisfaction. Responsibilities will include, but are not limited to: Contributing to the development of new product opportunities by assisting with the overall design of Memory/Logic/Analog circuits Performing verification processes with modeling and simulation using industry standard simulators Contributing to cross group communication to work towards standardization and group success Working with Marketing, Probe, Assembly, Test, Process Integration, and Product Engineering groups to ensure accurate manufacturability of product Proactively solicit guidance from Standards, CAD, modeling, and verification groups to improve the design quality Driving innovation into the future Memory generations within a dynamic work environment About Micron Technology, Inc. We are an industry leader in innovative memory and storage solutions transforming how the world uses information to enrich life for all . With a relentless focus on our customers, technology leadership, and manufacturing and operational excellence, Micron delivers a rich portfolio of high-performance DRAM, NAND, and NOR memory and storage products through our Micron® and Crucial® brands. Every day, the innovations that our people create fuel the data economy, enabling advances in artificial intelligence and 5G applications that unleash opportunities - from the data center to the intelligent edge and across the client and mobile user experience. To learn more, please visit micron.com/careers All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status. To request assistance with the application process and/or for reasonable accommodations, please contact hrsupport_japan@micron.com Micron Prohibits the use of child labor and complies with all applicable laws, rules, regulations, and other international and industry labor standards. Micron does not charge candidates any recruitment fees or unlawfully collect any other payment from candidates as consideration for their employment with Micron. AI alert: Candidates are encouraged to use AI tools to enhance their resume and/or application materials. However, all information provided must be accurate and reflect the candidate's true skills and experiences. Misuse of AI to fabricate or misrepresent qualifications will result in immediate disqualification. Fraud alert: Micron advises job seekers to be cautious of unsolicited job offers and to verify the authenticity of any communication claiming to be from Micron by checking the official Micron careers website in the About Micron Technology, Inc.

• Construir, integrar y operar las soluciones financieras IA que definen los productos de la Dirección FinOps, garantizando entregas de alta calidad en releases cortos, con cobertura QA-as-code y cero deuda técnica crítica. • Orquestarás agentes de IA para acelerar el ciclo de desarrollo, asegurando que cada entrega esté conectada a un KR corporativo medible a través del “Hilo Dorado”. • Desarrollar Agentic (PDLC AI 1.1): Orquestar agentes de IA (Cursor, Gemini 1.5 Pro, n8n) para la codificación, integración y validación automatizada de módulos FinOps: Reconciliación Inteligente, Cobranza Inteligente, Core Financiero, Pago de Servicios y Facturación, garantizando entregas por Releases en los plazos definidos. • Integración de APIs Financieras: Diseñar e implementar integraciones con APIs de pagos, bancos y sistemas core bajo estándares BIAN y arquitecturas de microservicios, asegurando escalabilidad, resiliencia y compliance regulatorio en cada mercado. • QA-as-Code y Validación Automatizada: Implementar pipelines de validación automática desde el primer día del sprint, garantizando cobertura de pruebas, detección temprana de regresiones y calidad de producción en cada Release entregado. • Arquitectura Técnica FinOps: Colaborar con el Arquitecto del Squad para diseñar soluciones técnicas robustas en KashioOS, definiendo contratos de APIs, modelos de datos financieros y patrones de integración que soporten el crecimiento a 10 mercados. • Monitoreo y Observabilidad: Implementar dashboards de observabilidad técnica en KashioOS, midiendo latencias, tasas de error, disponibilidad de APIs y SLAs de reconciliación, asegurando la regla de oro: “Si no está en producción y medido, no existe”. • Ciclo de Mejora Continua: Ejecutar spikes técnicos para validar viabilidad de nuevas integraciones IA, proponer optimizaciones de rendimiento en los flujos de cobranza y reconciliación, y documentar patrones reutilizables para el Squad.

• Your role will play a major role in our success because… The PLG team has already built AI-native growth infrastructure — including AI Voice Caller and AI Sequencer — that is live and generating results. We now need someone dedicated to iterating on these tools, identifying new automation opportunities across the customer journey, and reducing the need for human touchpoints from acquisition through to cross-sell. • Every human touchpoint automated reduces CAC and increases self-serve conversion. • This role is also a force multiplier for the SDR team: faster loops, better tooling, less manual work, and stronger conversion across markets. • You’ll know you’re successful when, after 90 days, you’ve… • Understood the existing PLG infrastructure, including AI Sequencer, AI Voice Caller, and current acquisition flows • Identified the biggest automation opportunities across acquisition, activation, and qualification • Shipped improvements to existing AI workflows or internal PLG tools • Built a clear way to measure automation coverage, experiment velocity, and SDR time saved • Started documenting experiments and learnings so the team can move faster