Principal Full Stack Developer
About Us: At Kobalt.io, our mission is to solve cybersecurity for SMBs at scale. We believe small businesses are the engine behind innovation and growth. Understanding the challenges that our customers have enabled us to design and refine scalable cybersecurity services that support a secure path to growth. This is reflected in everything we do from the programs we build, to the partnerships we have developed with companies such as Vanta, Prescient and Sumo Logic. Role Overview: We are seeking an experienced full-stack developer to own the backend of our centralized information infrastructure. This will include role-based access control, data lake house design and implementation, credential management, and other unlocks for company-wide systems. You will work directly with the project lead on an accelerated timeline to ship v1. You will have an outsized impact on architecture, code quality and technical direction. Responsibilities: Build and ship core platform components such as data lake house, RBAC, multi-tenant credential management, audit chain and named-query layer Productionize ingestion pipelines with real schedulers, dead-letter queues, and per-tenant fan-out Own core system design, architecture and technical direction Influence code conventions, workflows and hiring Qualifications: 8+ years of production engineering experience with 5+ years in a senior IC role Strong TypeScript proficiency with production UIs Proven experience with multi-tenancy patterns such as per-tenant credentials, isolation and RBAC Experience with Postgres at scale: schema design, query optimization, migrations under load Distributed systems experience: async pipelines, scheduling, retries and idempotency Excellent technical writing: you’ll author specs, runbooks and ADRs Security mindset: authn / authz / audit by default, not as an afterthought Experience building internal and external tooling at scale Experience with observability tooling: OpenTelemetry, structured logging and distributed tracing Comfortable working in ambiguous environments: the project is fluid and you will help shape it Nice to have: Experience with cybersecurity, governance, risk and compliance, privacy, penetration testing, cloud security or other information security fields is a benefit LLM-augmented application work Compliance experience (SOC 2, ISO 27001) Infrastructure-as-code (Terraform, Pulumi) Benefits: Competitive salary and equity options Comprehensive health, dental, and vision insurance RRSP Matching Remote working and flexible work arrangements Professional development opportunities BYOD Allowance How We Use AI in Our Hiring Process At Kobalt.io, we value transparency and want you to know exactly how we evaluate candidates. AI Notetaking: We use an AI-powered meeting assistant in all interviews. This tool records, transcribes, and generates summaries of our conversation. This allows our interviewers to be fully present and engaged with you, rather than being distracted by taking manual notes. Information Sharing: These summaries help us accurately share your qualifications and highlights with hiring managers and key stakeholders who may not be on the call. Human-Led Decisions: While our AI tools may provide data points or candidate rankings, humans remain at the helm of our decision-making. We may use these insights as just one piece of information in our evaluation. Your potential is assessed by real people, and the final decision on who moves forward is always made by the hiring team. Apply To This Job