• Design & build business-focused full-stack applications in a cutting-edge, evolving environment • Contribute to our state-of-the-art growth engine, helping scale apps & games to millions of users • Participate in business strategy discussions and consistently deliver innovative solutions to business teams • Demonstrate technical excellence and help define best practices — write the code others aspire to • Develop team tooling and be a driving force behind improvement proposals • Support teammates' growth • Own features end-to-end: from architecture and implementation to deployment and monitoring • Work with event-driven systems (SQS/SNS) to build robust, decoupled services

• Design, develop, test, deploy, maintain, and enhance practical AI-powered software solutions for the fintech industry. • Own project timelines by managing priorities and delivering high-quality features. • Drive product and business decisions as a core contributor, helping to define and shape both the technical foundation and strategic direction. • Participate and foster best practices including code reviews, testing, etc.

Title: Senior Software Engineer (Java/ Cloud) Location: Remote (U.S. Based) Terms: Full-time Clearance: U.S. Citizenship required and ability to obtain and maintain a High-Level Public Trust clearance supporting USPTO Travel: 0–10% RESULTS. INNOVATION. VALUES. ACCOUNTABILITY. That’s RIVA. Our employee-first approach has manifested a culture that attracts the best and brightest. By investing in people first and providing a flexible work environment, our employees have higher morale, higher productivity rates, and lower turnover. At RIVA, people are our #1 priority. Program Overview RIVA Solutions supports the U.S. Patent and Trademark Office (USPTO) by delivering modern, secure, and scalable enterprise software systems that support mission-critical business operations across the patent and trademark lifecycle. RIVA partners closely with USPTO stakeholders to design, build, deploy, and operate complex systems using modern Java/Spring technologies, cloud-native architectures, and DevSecOps practices. Our work emphasizes long-term maintainability, system reliability, security, and operational excellence in highly visible federal environments. Position Overview RIVA Solutions is seeking a Senior Software Engineer (Java/Cloud) who is a hands-on senior engineer, not a purely feature-focused developer. This role requires deep technical expertise, strong system design instincts, and direct ownership of production systems. The ideal candidate has experience building, deploying, and supporting complex applications in live environments and is comfortable being accountable for system behavior after release. This role is well-suited for an engineer who enjoys owning systems end-to-end, including deployment support, troubleshooting production issues, addressing technical debt, and improving operational reliability. This is not a greenfield-only or heads-down coding role. The Senior Full Stack Developer will collaborate closely with product managers, architects, and DevOps teams to bridge legacy systems and modern cloud-based solutions while ensuring code quality, scalability, and system stability. Core Responsibilities - Design, develop, and maintain high-quality Java-based applications with a strong focus on scalability, reliability, and performance - Take hands-on ownership of production systems, including supporting deployments, troubleshooting production issues, and resolving incidents - Lead full-stack development efforts across backend services and front-end integrations, with a backend-leaning focus - Architect and implement services using Java 20+, Spring Boot/Core/Cloud and Hibernate/JPA to build maintainable, testable, high-performing services - Design and optimize data access layers using Hibernate (JPA) and advanced SQL; support Oracle today while contributing to future migration efforts to PostgreSQL (schema/query tuning, compatibility considerations) - Troubleshoot and remediate production performance issues across the stack (API, ORM, database), including Hibernate query tuning, indexing, and SQL optimization - Design and implement secure, scalable RESTful APIs - Participate directly in CI/CD pipeline troubleshooting, deployment support, and release validation using GitLab and SonarQube - Manage build automation and dependency management using Maven - Implement and enforce testing strategies using TDD and BDD, leveraging JUnit, Mockito, Cucumber, and Spock - Build accessibility considerations into application design and implementation, ensuring compliance with Section 508 standards - Support containerized and serverless workloads in AWS, including ECS, Fargate, and Kubernetes - Collaborate with DevOps teams to understand, maintain, and troubleshoot Infrastructure as Code (Terraform or similar tools) - Make informed architectural trade-offs related to performance, scalability, maintainability, and operational risk - Conduct code reviews, mentor other developers, and uphold engineering best practices - Ensure system uptime, performance, and stability across development, test, and production environments Minimum Qualifications - Bachelor’s degree (BA/BS) and 10+ years of experience, or Master’s degree (MA/MS) and 8+ years of experience in software development - Extensive hands-on experience with Java 20+ and object-oriented design principles - Strong expertise with Oracle databases and advanced SQL, with hands-on PostgreSQL experience (or demonstrated ability supporting Oracle-to-PostgreSQL migration initiatives) - Deep knowledge of the Spring ecosystem (Spring Boot, Spring Core, Spring Cloud) and Hibernate/JPA for ORM-based enterprise applications - Proven experience designing and maintaining enterprise persistence layers (ORM mappings, transactions, performance optimization) using Hibernate/JPA - Proven experience designing and supporting distributed systems and service-based architecture - Demonstrated ownership of production systems, including post-deployment support - Experience troubleshooting CI/CD pipelines and deployment issues - Proficiency with Git and modern branching and release strategies - Experience working in Agile development environments - Strong communication skills and ability to collaborate across technical and non-technical teams - Ability to obtain and maintain a High-Level Public Trust clearance Preferred Qualifications - Experience with Angular or similar front-end frameworks (integration-focused, not UI-specialist) - Experience supporting database modernization efforts, including Oracle-to-PostgreSQL migrations (schema conversion, SQL refactoring, performance tuning) - Strong experience with AWS cloud services, particularly containerized and serverless workloads - Hands-on experience with Terraform or similar infrastructure-as-code tools - Prior experience supporting USPTO or other federal systems - Experience serving as a senior engineer on complex, long-lived, product-centric platforms - Exposure to performance tuning, production monitoring, and system observability Preferred Certifications - AWS Certified Cloud Practitioner - AWS Certified Solutions Architect - AWS Certified Developer Salary Up to $145,000 per year, based on experience RIVA Benefits - Paid Time Off / Sick Leave - Health, Dental, and Vision Coverage - Life Insurance - Retirement Benefits / 401K with company matching - HSA/FSA Spending Accounts - Long- and Short-term Disability - Pet Insurance - Wellness Program Initiatives - RIVA Flex - Additional Workplace Benefits Equal Opportunity Statement RIVA Solutions is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, or any protected class. If you need a reasonable accommodation to search for a job opening or to submit an online application, please email accommodations@rivasolutionsinc.com. Only messages left for this purpose will be returned.

1KOMMA5° At 1KOMMA5°, we pursue a clear vision: Living on wind and sunlight forever for free. To make this a reality, we are building the energy system of the future with Heartbeat AI. Want to be part of it? We bring together regional craftsmanship and scalable software: We don't think of solar, batteries, heat pumps, and e-mobility as isolated components, but control them as an intelligent, integrated overall system in our virtual power plant. Directly connected to the electricity market – in real time, fully automated. This way, energy is used when it is available from renewables and particularly cost-effective. By 2030, our goal is to transition 1.5 million households to renewable energies. Over 3,000 people are working towards this every day, at more than 80 locations worldwide, from Finland to Australia. Want to take responsibility and build solutions that truly matter? Apply now and help us shape the energy world of tomorrow. Learn about our Product & Tech team! Deine Position We are looking for a Senior Backend Engineer with an interest in full stack development to join our Site Config team. You will help to design, build and shape the solutions that enable the seamless setup and configuration of our customers’ Home Energy Management Systems (HEMS). We are the layer between our IoT fleet and our customers and installers, and we are scaling fast - join us! You will collaborate as part of our cross-functional team of frontend engineers, backend engineers, a product manager and a designer. Cloud Architects and SREs will enable you to easily deliver and run software in a consistent, secure and reliable way. Our Stack: TypeScript, NestJS, NextJS, Flutter, GCP, Vercel, Cursor, Datadog As a Senior Backend Engineer, you will: - Plan, build and shape multiple business critical applications and integrations - Thoughtfully create, implement, evaluate and deploy software solutions to solve complex problems in an elegant way - Lay the foundation and architecture to scale globally - Foster a culture of experiment-driven innovation within the team - Promote teamwork and successful project execution - Improve developer satisfaction by constantly avoiding/reducing tech-debt, automating as much as possible and documenting decisions, runbooks etc. - Work across your boundaries and interact in close collaboration with our stakeholders and other teams Dein Profil You check many of the following boxes: - Proven experience in developing, shipping and monitoring scalable backend software solutions with TypeScript from several past projects - Experience with NestJS in large scale applications is a clear plus - otherwise, experience with similar frameworks - Able to communicate ideas clearly and concisely both in written and spoken form (our working language is English) - You actively seek input from your peers and create visibility where it’s lacking - A broad knowledge of architectural patterns and experience implementing them with modern devops best practices - Worked in a cross-functional team being responsible for the full software development lifecycle, including leading project orchestration - Interest in wearing different (metaphorical) hats. We expect our engineers to engage in product thinking and care deeply about business impact - You feel comfortable with ambiguity and ask for what you need to get the job done - You are excited to leverage AI tools to enhance your impact, including agentic coding We are an ambitious and dynamic company with a talented team. We require our engineers to be imaginative, enthusiastic, and willing to tackle new challenges as we strive to provide everyone with renewable energy technologies. Bonus points for: - Experience in Next.js or Flutter - We are experimenting with more fullstack roles, though you will remain primarily a backend expert - Experience with CI/CD using GitHub Actions and cloud infrastructure (GCP/Vercel) - A passion for the home energy and renewable sector Benefits - You are part of an international, dynamic, and highly motivated team of people who have a proven track record of making things happen - With your work, you accelerate the "energy transition" and hence have a direct impact on our climate - Work with and learn from other super smart colleagues - You will enjoy direct contact with core decision makers - You will enjoy the best chances of entering full-time in one of Europe’s most thriving scale-ups - You work remotely (Germany-wide), with offices in Hamburg, Berlin or Munich - Create a healthy balance alongside your work and enjoy all the benefits of the EGYM Wellpass - Benefits and discounts are yours with Futurebens - Whether city bike or e-bike - be flexible with our job bike leasing and do something good for the environment at the same time