Tech Lead Manager

About Mosaic

Mosaic is the AI-powered workforce management software revolutionizing how companies operate. We’re leading the future of hybrid organizations by connecting teams with intelligent resource planning and operational analytics. As a high-growth, venture-backed startup with a world-changing mission, Mosaic gives you the opportunity to make a measurable impact at scale — shaping how modern enterprises plan, execute, and optimize their people operations.

About the Role

We are seeking a Tech Lead Manager to join our Integration Infrastructure team. This is a hybrid IC/management role where you will spend approximately 70% of your time on hands-on technical work and 30% on people management and team leadership.

On the technical side, you will tackle deep engineering challenges to ensure our integration infrastructure operates at three-nines (99.9%) accuracy with near real-time data synchronization. You'll design and build API connectors, data sync pipelines, and webhook infrastructure using TypeScript and NestJS — integrating with external databases and third-party systems, writing production code, reviewing pull requests, and driving architectural decisions across the stack.

On the management side, you will lead a team of engineers — owning their growth, performance, and career development while fostering a high-trust, high-output team culture. You'll partner closely with product management and engineering leadership to shape the team's roadmap and priorities.

If you're excited about working with cutting-edge integration technologies, mentoring engineers, and shaping how data flows seamlessly across our platform, we'd love to hear from you.

Responsibilities - Technical Leadership & Execution (~70%)

• Design, architect, and implement scalable integration infrastructure that achieves five-nines accuracy and near real-time synchronization.
• Engage in hands-on coding, code reviews, and performance optimizations, setting the standard for technical excellence across the team.
• Drive the technical vision for data pipelines, distributed systems, and real-time processing frameworks, ensuring maintainability and long-term viability.
• Collaborate with engineers, product managers, and stakeholders to translate business requirements into robust technical solutions.
• Implement best practices in code quality, testing, observability, and performance monitoring to ensure reliability and uptime.
• Champion a culture of automation, streamlined operations, and continuous improvement across the engineering organization.
• Act as a thought leader, evaluating and introducing new technologies, tools, and patterns that enhance integration capabilities.

Responsibilities - Team Management (~30%)

• Manage, coach, and develop a team of engineers, owning their career growth, performance reviews, and professional development.
• Drive hiring for the team — defining roles, conducting interviews, and making hiring decisions to build a world-class integration engineering team.
• Foster a healthy, inclusive team culture rooted in psychological safety, trust, and accountability.

Requirements - Education & Experience

• Bachelor's degree in Computer Science (required).
• 8+ years of hands-on software engineering experience, with a strong focus on building scalable, reliable, and secure distributed systems.
• 2+ years of experience in a people management or tech lead role with direct reports.
• Proven experience building and scaling integration systems — including API connectors, webhook infrastructure, data synchronization pipelines, or iPaaS-style platforms.
• Deep expertise in working with large-scale data pipelines, streaming architectures, or ETL frameworks across multiple external systems.
• Proven track record of driving technical initiatives, mentoring engineers, and influencing architectural decisions.

Requirements - Technical

• Strong proficiency in TypeScript and NestJS (required); experience with Ruby or Python is a plus.
• Hands-on experience integrating with external databases (e.g., PostgreSQL, MySQL, MongoDB, Snowflake) and designing resilient data access layers across third-party systems.
• Strong understanding of cloud architectures, containerization, and orchestration technologies.
• Extensive experience with observability tools, CI/CD pipelines, and automation frameworks.
• Familiarity with testing methodologies, performance tuning, and high-availability strategies.

Requirements - Leadereship

• Demonstrated ability to balance technical execution with people leadership — comfortable context-switching between writing code and coaching engineers.
• Exceptional problem-solving abilities and attention to detail.
• Strong communication skills, capable of articulating complex technical concepts to diverse audiences.
• Early-stage startup experience (Seed to Series C) — comfortable wearing multiple hats, moving fast, and building in environments with limited infrastructure.
• Known for building trust and respect with peers through technical credibility, empathy, and integrity.

Nice to Have

• Experience with ERP, workforce management, HR tech, or B2B SaaS platforms.
• Experience designing third-party API integration frameworks or building developer-facing integration SDKs.
• Familiarity with AI/ML-powered data processing pipelines.
• Experience with event-driven architectures and message brokers (Kafka, BullMQ).

Why Join Mosaic?

• High Impact: Deploy technology that changes how enterprises plan, manage, and scale their workforce.
• Deep Technical Ownership: Work directly in code — not just configure systems — and ship meaningful solutions to real customers.
• Cross-Functional Exposure: Operate at the intersection of Engineering, Product, and Customer Success.
• Growth & Learning: Build expertise in enterprise-scale integrations, data reliability, and AI-driven automation.
• Benefits: Competitive compensation, meaningful equity, health coverage, and a flexible remote-friendly culture.