Senior Fullstack Engineer (.NET/React + Umbraco CMS) - Agency

We are looking for a Senior Full-stack Engineer to contribute to multiple client-facing web projects, building and maintaining scalable applications using .NET technologies and modern Front End frameworks. This role is ideal for an engineer who enjoys working across the stack, developing Back End services and Front End experiences, integrating CMS-driven solutions, collaborating with multidisciplinary teams, and delivering high-quality technical implementations in a fast-paced agency environment. Responsibilities

• Design, develop, and maintain full-stack web application features across multiple client projects.
• Build scalable Back End services using C# and .NET Core.
• Develop responsive and maintainable Front End applications using JavaScript and React or Angular.
• Integrate CMS platforms, APIs, and third-party services to support content-driven digital experiences.
• Participate in technical architecture discussions and contribute to technical decision-making.
• Conduct and participate in code reviews to maintain engineering quality standards.
• Collaborate closely with designers, strategists, producers, and fellow engineers throughout the development lifecycle.
• Ensure code quality through testing, performance optimization, and adherence to development best practices.
• Work independently while proactively communicating progress, risks, blockers, and recommendations.
• Maintain technical documentation and support continuous improvement initiatives across projects.

• 5+ years of experience as a developer
• Strong professional experience with C# and .NET Core.
• Strong Front End development experience with JavaScript and React (Angular experience is also acceptable).
• Strong HTML, CSS, and JavaScript fundamentals.
• Experience building and consuming REST APIs.
• Hands-on professional experience with Umbraco CMS, including Umbraco 13 or a newer version.
• Experience working with Microsoft SQL Server.
• Experience using Git and CI/CD workflows.
• Ability to work independently with minimal supervision and manage priorities effectively.
• Advanced English communication skills, both written and verbal.

Nice to Have

• Familiarity with Node.js.
• Experience using AI-assisted development tools as part of the software development workflow.
• Experience optimizing web performance, page speed, and Front End user experience.
• Experience building reusable Front End component libraries or design system implementations.
• Experience working with AWS cloud services.
• Previous experience in digital agencies or fast-paced client delivery environments.
• Knowledge of accessibility standards and responsive design best practices.
• Participation in architecture discussions and technical design decisions.
• Strong ownership mindset with the ability to drive work from requirements through delivery.

• Highly Competitive USD Pay: Earn an excellent, market-leading compensation in USD, that goes beyond typical market offerings.
• Paid Time Off: We value your well-being. Our paid time off policies ensure you have the chance to unwind and recharge when needed.
• Work with Autonomy: Enjoy the freedom to manage your time as long as the work gets done. Focus on results, not the clock.
• Work with Top American Companies: Grow your expertise working on innovative, high-impact projects with Industry-Leading U.S. Companies.

At Truelogic we are a leading provider of nearshore staff augmentation services headquartered in New York. For over two decades, we’ve been delivering top-tier technology solutions to companies of all sizes, from innovative startups to industry leaders, helping them achieve their digital transformation goals.

Our team of 600+ highly skilled tech professionals, based in Latin America, drives digital disruption by partnering with U.S. companies on their most impactful projects. Whether collaborating with Fortune 500 giants or scaling startups, we deliver results that make a difference., Our client is a digital agency focused on delivering scalable, high-quality web solutions for enterprise organizations. The company specializes in modern web development, CMS implementations, and digital experience platforms, partnering with cross-functional teams of engineers, designers, strategists, and producers to build impactful digital products. Their engineering culture emphasizes collaboration, code quality, maintainable architectures, and successful delivery in fast-paced client environments., Why You’ll Like Working Here

• A Culture That Values You: We prioritize well-being and work-life balance, offering engagement activities and fostering dynamic teams to ensure you thrive both personally and professionally.
• Diverse, Global Network: Connect with over 600 professionals in 25+ countries, expand your network, and collaborate with a multicultural team from Latin America.
• Team Up with Skilled Professionals: Join forces with senior talent. All of our team members are seasoned experts, ensuring you’re working with the best in your field.