Lead FullStack Engineer - Contacts

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 people With 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 impact Every 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 Team: Our platform enables customers to create 400 million+ new entities every day and perform 35 million+ search operations daily across billions of records. We build and maintain highly scalable backend systems and search engines that operate with extremely low latency and high accuracy.   If you want to work on massive-scale distributed systems and solve real-time performance challenges, this is the right place.   About the Role: We are seeking a Lead Engineer (FullStack) who will operate primarily as a high-impact IC, while also influencing engineering practices and technical direction across teams.   This role is not about delivering tickets — it’s about owning mission-critical services end-to-end, driving architectural decisions, understanding customer and internal pain points, and elevating the overall technical excellence of our platform.   You will play a key role in improving performance, scalability, and reliability across distributed systems running at extraordinary scale. Responsibilities:

Provide technical guidance and mentorship to junior and senior engineers, fostering an environment of technical improvement and high-pace execution

Lead the team through critical architectural, product, and technical decisions, including long-term scalability planning

Participate in hands-on coding for critical development efforts, leading by example

Enforce engineering excellence standards through rigorous code reviews, design discussions, and the promotion of technical best practices

Own the end-to-end delivery lifecycle for large-scale, high-impact software projects

Collaborate closely with Product Managers, Engineering Managers, Designers, QA, and other cross-functional teams to define, align, and execute the technical roadmap

Ensure timely project delivery while maintaining high quality, system reliability, and performance

Proactively identify and mitigate technical risks, resolve system bottlenecks, and address performance issues

Actively support the professional growth and career development of team members

Contribute to shaping the team's engineering culture, continuously improving processes, and maintaining high team productivity

Influence critical talent processes, including hiring, onboarding, and team structuring, to effectively scale the organisation

Drive the adoption and continuous improvement of best practices across the Software Development Life Cycle (SDLC) and Agile methodologies

Requirements:

7+ years in FullStack engineering roles with hands-on development

Expertise in distributed systems, micro-services, event-driven architectures

Strong hands-on skills in Docker and Kubernetes 

Proficiency in backend languages: Node.js OR Go

Proficiency in FE Tools & Technologies : VueJS/ReactJS, Micro-Frontend, Webpack or Rollup or Vite 

Good database experience with indexing, schema design, and optimization for Elasticsearch, Firestore, ClickHouse

Understanding of caching strategies, message queues, and high-performance APIs

Cloud experience with AWS/GCP and CI/CD pipelines (Jenkins or similar)

Familiarity with observability tools such as Sentry, Grafana, ELK