• Develop and maintain web and mobile applications using PHP (Yii2 framework), JavaScript (Nest.js/Next.js, Electron), React and React Native. • Collaborate on the development and maintenance of APIs. • Work with SQL databases (MySQL/PostgreSQL + PostGIS), assisting with data modeling and query optimization. • Support the team in integrations with GeoServer and Auth0. • Actively participate in technical discussions and code reviews. • Learn and apply new technologies and development methodologies.

Role Description We are seeking a Senior Full-Stack Developer. Qualifications - 5+ years of experience in full-stack software development - Strong hands-on experience with .NET (C#) for backend services and APIs - Solid experience building modern front-end applications using React - Proven experience designing and consuming RESTful APIs - Good understanding of cloud-native application development on AWS - Experience working with relational and/or NoSQL databases - Strong understanding of software engineering best practices (clean code, testing, performance, security) - Experience working in agile, cross-functional teams - Ability to collaborate effectively with architects, data engineers, and business stakeholders Requirements - Experience with microservices architectures - Familiarity with AWS services such as ECS/Fargate, Lambda, API Gateway, S3, SNS/SQS - Experience with event-driven architectures - Exposure to CI/CD pipelines and Infrastructure as Code (Terraform or CloudFormation) - Experience integrating frontend applications with data or analytics platforms - Familiarity with authentication and authorization mechanisms (OAuth2, JWT, enterprise SSO) - Experience working with high-load or enterprise-scale systems Core Responsibilities - Develop and maintain end-to-end features across React front-end and .NET back-end services - Build scalable, maintainable APIs and business logic supporting fleet optimization workflows - Implement responsive, user-friendly interfaces with a strong focus on performance and usability - Integrate applications with cloud infrastructure, data platforms, and enterprise systems - Collaborate with Solution Architects to implement architectural patterns and best practices - Ensure code quality through reviews, automated testing, and adherence to engineering standards - Troubleshoot, optimize, and improve system performance, reliability, and scalability - Support deployments and production operations on AWS - Work closely with product and business teams to translate requirements into production-ready solutions Benefits - Continuous learning and career growth opportunities - Professional training and English/Spanish language classes - Comprehensive medical insurance - Mental health support - Specialized benefits program with compensation for fitness activities, hobbies, pet care, and more - Flexible working hours - Inclusive and supportive culture Company Description Established in 2011, Trinetix is a dynamic tech service provider supporting enterprise clients around the world. Headquartered in Nashville, Tennessee, we have a global team of over 1,000 professionals and delivery centers across Europe, the United States, and Argentina. We partner with leading global brands, delivering innovative digital solutions across Fintech, Professional Services, Logistics, Healthcare, and Agriculture. Our operations are driven by a strong business vision, a people-first culture, and a commitment to responsible growth. We actively give back to the community through various CSR activities and adhere to international principles for sustainable development and business ethics.

• Design, build, and maintain end-to-end product features across frontend, backend, and AI services • Develop AI-powered capabilities such as recommendations, automation, summarization, classification, or decision support • Integrate LLMs and ML models into production systems with attention to performance, reliability, and cost • Build and consume well-designed APIs and services that support scalable AI workflows • Collaborate closely with Product Managers, Designers, and Data/ML partners to translate business problems into technical solutions • Ensure high code quality through testing, reviews, and adherence to engineering best practices • Debug and resolve complex issues across the stack, including data, model behavior, and user experience • Contribute to improving engineering standards, tooling, and developer experience within the team

• Lead development teams to ensure sprint commitments are met • Define and maintain AI technical standards, reference architectures, prompt libraries, templates, and playbooks • Partner with sales and delivery to design AI strategies, architectures, and proof of concepts • Architect and deploy MLOps/AIOps platforms that support model lifecycle management, evaluation, and monitoring • Develop and deliver AI training programs, workshops, and internal documentation