• Design, develop, and maintain both desktop and web-based software applications using .NET technologies, primarily C#. • Implement clean, scalable, and efficient code following best practices and coding standards. • Develop APIs, services, and integration layers to connect with internal and external systems. • Participate in architectural discussions and decisions for new projects and enhancements. • Ensure adherence to design principles such as SOLID and design patterns. • Conduct code reviews and provide constructive feedback to ensure high quality code. • Work closely with stakeholders and QA teams to gather requirements and deliver quality solutions. • Lead and mentor junior developers, fostering a culture of continuous learning and improvement. • Collaborate in Agile ceremonies, including sprint planning, daily stand-ups, and retrospectives. • Optimize application performance and troubleshoot complex technical issues across both desktop and web platforms. • Maintain and enhance existing applications, ensuring stability and reliability. • Stay updated on emerging technologies and integrate them into the development process where applicable.

Senior Full Stack Engineer About the Role: We are seeking a highly skilled Senior Full Stack Engineer to join our dynamic team. As a Senior Full Stack Engineer, you will play a crucial role in designing, developing, and maintaining our web applications. You will be responsible for both front-end and back-end development, ensuring a seamless user experience. Responsibilities: - Design, develop, and deploy robust and scalable web applications. - Collaborate with cross-functional teams to understand business requirements and translate them into technical solutions. - Develop and maintain RESTful APIs and microservices. - Write clean, well-documented, and maintainable code. - Participate in code reviews and provide constructive feedback. - Troubleshoot and resolve complex technical issues. - Mentor junior team members and foster a culture of continuous learning. - Stay up to date with the latest web development technologies and industry trends. Requirements: - 5+ years of experience in full-stack web development. - Strong proficiency in JavaScript, HTML, and CSS. - Expertise in modern JavaScript frameworks like React, Angular, or Vue.js. - Solid understanding of backend development with languages like Node.js, Python, or Java. - Experience with databases (SQL and NoSQL) and data modeling. - Familiarity with cloud platforms (AWS, Azure, GCP) and containerization technologies (Docker, Kubernetes). - Strong problem-solving and analytical skills. - Excellent communication and teamwork skills. Preferred Qualifications: - Experience with serverless architectures and functions. - Knowledge of GraphQL and other API design paradigms. - Experience with testing frameworks (Jest, Mocha, Cypress). - Certification in relevant technologies (AWS, Azure, Google Cloud).

About HighLevel HighLevel is an AI-powered business operating system that gives agencies, entrepreneurs and SMBs the infrastructure to build, automate and scale. Today, HighLevel supports SMBs across 150+ countries, fueling community-driven growth rooted in real customer outcomes.To date, businesses operating on HighLevel have generated over $7 billion in ecosystem value, demonstrating the impact of shared infrastructure at scale. By centralizing conversations, automation and intelligence into one system, we help businesses move faster, reduce complexity and execute efficiently.Behind the platform, HighLevel powers more than 4 billion API hits and 2.5 billion message events daily. With 250 terabytes of distributed data, 250+ microservices and over 1 million domain names supported, our architecture is built for performance, resilience and long-term scalability. Our peopleWith over 2,000 team members across 10+ countries, HighLevel operates as a global, remote-first organization built for speed and ownership. We value initiative, clarity and execution, creating space for ambitious people to build systems that support millions of businesses worldwide. Here, innovation thrives, ideas are celebrated and people come first, no matter where they call home. Our impactEvery month, HighLevel enables more than 1.5 billion messages, 200 million leads and 20 million conversations for the more than 1 million businesses we support. Behind those numbers are real people building independence, expanding opportunity and creating measurable impact. We’re proud to be a part of that.Learn more about us on our YouTube Channel or Blog Posts About the Role We’re looking for a Software Development Engineer III with deep expertise in Node.js, MongoDB, and distributed systems, along with a strong focus on platform stability, scalability, and long-term technical excellence. You’ll join the platform team within our LC Phone System, which provides capability for purchasing phone numbers, Messaging, Calling, Compliance and Platform. This role is backend-heavy, involving platform-level challenges such as system stability, performance optimization, tech debt reduction, security hardening, and cost efficiency. You’ll work on foundational improvements that enable the entire Phone System (including Calling, Messaging, and related services) to operate seamlessly under increasing demand. Responsibilities - Stabilize & Scale the Platform: Tackle systemic bottlenecks, improve fault tolerance, and ensure high availability for mission-critical phone services. - Efficiency & Performance: Optimize resource usage (CPU, memory, network) to handle millions of operations while reducing cloud costs. - Tech Debt & Modernization: Lead long-term refactoring efforts, deprecate legacy systems, and introduce scalable patterns. - Security & Compliance: Strengthen data protection, access controls, and auditability across the platform. - Developer Velocity: Improve tooling, observability, and automation to accelerate engineering workflows. - Cross-Team Collaboration: Work with product, infrastructure, and other engineering teams to align on platform priorities. - Mentorship & Leadership: Guide engineers, set architectural standards, and drive the platform roadmap. Requirements - 4+ years of backend engineering experience, including designing fault-tolerant systems and working on high-scale platforms. - Deep expertise in distributed systems, event-driven architectures, and asynchronous job processing - Strong experience with relational and NoSQL data models (especially with complex temporal data) - Proven track record of architecting complex systems and delivering scalable, high-performance web apps in production. - Strong understanding of software design patterns, API design, and microservices architecture in a multi-tenant environment. - Skilled in guiding technical architecture, making high-impact engineering decisions, and mentoring fellow engineers. - Experience with code quality practices, automated testing, CI/CD pipelines, and dev tooling optimization. - Excellent problem-solving skills, with clear and collaborative communication across Preferred Experience - Experience with AI Tools and contributions to open-source tools, internal platforms or engineering blogs - Experience with modern front-end frameworks (e.g., React, Vue, Angular) and building full-stack web applications. EEO Statement The company is an Equal Opportunity Employer. As an employer subject to affirmative action regulations, we invite you to voluntarily provide the following demographic information. This information is used solely for compliance with government record keeping, reporting, and other legal requirements. Providing this information is voluntary and refusal to do so will not affect your application status. This data will be kept separate from your application and will not be used in the hiring decision.

• You will gain exposure to the full stack of the Unibuddy platform across web, native, and backend to deliver engaging solutions to our users and customers. • This role sits within our Platform squad, where you will be responsible for developing systems and tooling, and improving infrastructure that underpin the platform and the efforts of the wider engineering team. • Reporting to the squad Tech Lead, you will be working in a cross-functional squad responsible for implementations across a client and server-side stack, with a keen eye for the user journey and their experience using our products. • You will have the opportunity to work with a modern tech stack and AI systems to bring powerful features to the hands of our customers and users.