Senior Full-Stack Node Engineer

Who We AreAt Jobsity, we believe great talent should not be limited by geography.Jobsity is a nearshore staffing partner that connects leading U.S. companies with top talent in Latin America for software engineering, contact center operations, and BPO services. Our footprint spans over 20 countries across the Americas, and we deliver fully integrated, enterprise-ready teams.From scaling specialized tech infrastructure to delivering bilingual front-line customer service, Jobsity provides an all-in-one staffing solution including recruitment, onboarding, payroll, compliance, and more.Why Work With JobsityWe match standout professionals across Latin America with high-impact opportunities at leading U.S. companies. Joining Jobsity is about finding a rewarding remote role and working with innovative teams. It also means you get to become part of a community that values your experience, supports your ambition, and invests in your ongoing professional growth.Whether you are looking for your next challenge, seeking greater flexibility, or ready to elevate your career, Jobsity gives you the platform and partnership to thrive on your terms.Job DescriptionWe are looking for a Senior Full-Stack Node Engineer to join the team and help expand a platform that securely connects utilities with consumer platforms. You will build and maintain TypeScript and Node.js backend services, APIs, and integrations within a multi-tenant SaaS architecture, with a strong focus on authentication, authorization, and secure data exchange. The role starts backend-heavy and grows into React frontend work, such as admin tools for utility customers. You will own deliverables end to end, mentor teammates, and help shape engineering practices as the team grows.ResponsibilitiesDesign, build, and maintain scalable APIs and backend services with TypeScript and Node.js/NestJS.Contribute to frontend development with TypeScript and React, with growing involvement over time.Deliver reusable, well-tested code.Build integrations connecting utility systems with external consumer platforms.Develop secure data exchange services within a multi-tenant SaaS architecture, and identify improvements.Apply secure engineering practices: authentication, authorization, access control, secrets handling, and privacy-conscious logging.Identify vulnerabilities in code and code reviews.Own deliverables end to end, from design to deployment and production monitoring.Troubleshoot issues, find root causes, and resolve performance and reliability problems.Flag technical debt and advocate for improvements.Partner with product and design, influence technical decisions, and challenge ideas constructively.Mentor junior and mid-level engineers, write technical documentation, and participate in technical interviews.Use AI coding tools such as Claude Code throughout development.Key Requirements5+ years of professional software development experience across frontend and backend systems.Strong TypeScript and React experience.Experience building backend applications with Node.js and NestJS.Experience with modern JavaScript and TypeScript build tooling, such as the TypeScript compiler, Babel, Vite, or webpack.Experience working with relational SQL databases and NoSQL data stores, with an understanding of when to use each.Experience designing, developing, or maintaining applications within a multi-tenant SaaS architecture.Strong understanding of authentication, authorization, and application security.Familiarity with security practices such as OAuth/JWT, mutual TLS (mTLS), secure secrets handling, and PII-safe logging.Demonstrated ability to own and deliver technical projects with limited supervision.Strong debugging, problem-solving, and technical decision-making skills.Clear, proactive written and verbal communication.Business English proficiency sufficient to participate in complex technical discussions, collaborate across teams, and produce clear technical documentation.Practical experience using AI coding tools, or the ability to adapt quickly to an AI-assisted development workflow.What We OfferAt Jobsity, we know that a positive professional experience goes beyond the role itself.Depending on the position, client, country, and type of contract, professionals may have access to different benefits, programs, and resources designed to support their well-being, development, and remote-work experience.These may include:● Paid time off or vacation days● Paid holidays, depending on the client and country● Professional development and learning opportunities● Ongoing support from our People Experience team● Recognition initiatives and internal activities● Remote-work flexibility● Opportunities to collaborate with international teams● Access to tools and resources that support your work● Career growth opportunities based on performance, business needs, and available rolesBecause each opportunity is different, the specific benefits associated with a position will always be communicated during the recruitment process.