AddSource · 4 hours ago
Principal Software Engineer & Team Lead
AddSource is building an infrastructure management platform from scratch and seeks a Principal Software Engineer who actively writes code while leading technical efforts. This role involves owning the architecture and design of core platform services, mentoring engineers, and driving the delivery of critical capabilities, all while ensuring high standards of reliability and performance.
Responsibilities
Own architecture and system design for core platform services, ensuring they meet reliability, security, compliance, and performance requirements
Lead end-to-end delivery of critical platform capabilities, from technical discovery and design through implementation, rollout, and ongoing improvements
Drive technical excellence in the codebase, setting standards for code quality, testing, performance, and observability, and ensuring they are adopted across the team
Mentor and grow senior engineers, providing clear technical direction, constructive feedback, and opportunities for ownership
Collaborate with product, platform, and security leaders to translate business needs into technical roadmaps, and make thoughtful trade-offs between speed, safety, and maintainability
Continuously improve platform operability, including deployment strategies, telemetry and alerting, incident response practices, and post-incident learning
Identify and mitigate technical risks, proactively addressing scaling, reliability, and security concerns before they impact customers
Qualification
Required
10+ years of software engineering experience, with 4+ years in senior/staff/principal roles shipping production systems
Expert-level TypeScript proficiency—you can build complex, type-safe applications and reason deeply about the type system
Expert-level Next.js experience building production full-stack applications with SSR, API routes, and modern React patterns
Strong Go experience for backend services, CLIs, and systems-level tooling
Deep expertise in API design—RESTful APIs, versioning, error handling, and building interfaces developers love to use
Experience building control planes, reconciliation loops, or state machines for infrastructure automation
Strong understanding of distributed systems principles and how to design for eventual consistency and failure
Hands-on experience with cloud platforms (AWS/GCP/Azure) and infrastructure-as-code tools
Proven ability to own and deliver complex systems end-to-end, from design through production operation
Track record of mentoring engineers, setting technical direction, and raising the bar for code quality
Experience building developer tools, SDKs, or CLIs that other engineers depend on
Strong opinions on testing, observability, and building systems that are easy to debug and operate
Preferred
Contributions to open-source infrastructure or developer tooling projects
Experience building multi-tenant platforms with tenant isolation and resource management
Deep PostgreSQL experience—schema design, query optimization, and handling high-write workloads
Background with event-driven architectures and messaging systems (Kafka, NATS, etc.)
Experience designing secure systems with RBAC, secrets management, and compliance requirements
Performance engineering skills—profiling and optimizing Go and TypeScript applications
Prior experience at infrastructure or developer tools companies
Company
AddSource
Welcome to AddSource (DBA name for VeeRteq Solutions Inc.) – Your Trusted Workforce Solution Partner! As a women-owned staffing and HR consulting firm with a robust presence in both Canada and the US, AddSource is dedicated to helping businesses thrive by connecting them with exceptional talent and providing holistic HR solutions.
Funding
Current Stage
Early StageCompany data provided by crunchbase