Principal Engineer

Join SundaySky as a Principal Engineer, where you will provide hands-on technical leadership across our product and platform. In this senior individual-contributor role, you will turn ambiguous business and product goals into durable architecture, lead complex cross-platform initiatives, and improve how our engineering organization designs and delivers software. You will define and evolve the technical architecture for our multi-tenant SaaS platform, lead the technical strategy for high-risk initiatives, and serve as a hands-on technical leader.

Missions

• Define and evolve the technical architecture for SundaySky's multi-tenant SaaS platform across frontend applications, backend services, data systems, media pipelines, integrations, and cloud infrastructure.
• Lead the technical strategy and design for the company's highest-risk, most ambiguous, and most cross-cutting product and platform initiatives, translating business strategy, product requirements, and customer needs into scalable technical capabilities.
• Establish clear architectural principles, service boundaries, integration patterns, data contracts, and decision records that enable teams to move quickly without creating unnecessary complexity.

Profil recherché

- The ideal candidate combines deep full-stack and distributed-systems expertise with pragmatic judgment, strong product thinking, and the ability to influence through technical credibility

- Experience designing enterprise integrations involving third-party APIs, identity providers, data platforms, webhooks, file exchange, and event-based interfaces

- Deep expertise in distributed systems, service architecture, APIs, asynchronous workflows, event-driven patterns, background processing, and failure handling

- Experience establishing CI/CD, infrastructure-as-code, automated testing, observability, and production-operability practices for distributed applications

- Expert full-stack engineering capability, with deep experience in modern JavaScript and TypeScript and strong proficiency in at least one backend technology such as Node.js, Python, Java, or C#

- Experience designing for scalability, resilience, high availability, graceful degradation, disaster recovery, and measurable service-level objectives

- Deep understanding of cloud-native architecture, preferably AWS, including containers, serverless services, networking, storage, compute, deployment patterns, and cost management

- Demonstrated ability to lead architecture and implementation across multiple teams without relying on formal reporting authority

- Strong knowledge of application and platform security, authentication, authorization, tenant isolation, secrets management, data protection, privacy, and secure software development

- Demonstrated ability to modernize a mature platform incrementally while continuing to deliver product capabilities and protect customer commitments

- Strong experience with relational and non-relational data architecture, schema design, data integrity, migration strategies, and performance optimization

- Approximately 12 or more years of professional software development experience, including significant technical leadership in production SaaS environments

- A sustained record of designing, building, and operating complex, business-critical software platforms at scale

- Strong written and verbal communication skills, including the ability to explain complex technical decisions, tradeoffs, and risks to varied audiences

- Advanced experience with modern frontend architecture, preferably React, including component systems, state management, performance, accessibility, browser behavior, and complex workflow-oriented applications

- Experience with AWS or another major cloud provider

- Experience working on a multi-tenant SaaS platform

- Demonstrate accountability for the health, evolution, and business impact of the platform as a whole

- Personally solve the highest-leverage technical problems while enabling others to execute the broader solution

- Build alignment across teams, resolve technical disagreements constructively, and influence decisions through evidence and credibility

- Set coherent technical direction across multiple products, teams, and planning horizons

- A successful Principal Engineer should be able to:

- Recognize systemic risks and architectural constraints before they become delivery or production failures

- Raise engineering quality and delivery confidence without becoming a bottleneck or centralizing every decision

- Make consequential technical decisions with incomplete information and clearly articulate the assumptions and tradeoffs involved

- Balance immediate business needs with scalability, reliability, security, maintainability, and long-term platform evolution

- Convert ambiguous strategic goals into clear architecture, technical milestones, ownership boundaries, and delivery paths

- Create durable organizational leverage through platforms, standards, tools, documentation, and stronger technical leaders

- Experience with video, audio, media processing, creative tooling, animation, rendering, transcoding, or digital asset management

- Experience with browser-based motion graphics using React, JavaScript, CSS animations, Canvas, WebGL, WebAssembly, or related technologies

- Experience with generative AI, large language models, retrieval-augmented generation, agentic workflows, prompt orchestration, or AI-generated media

- Experience architecting configurable enterprise platforms and internal developer platforms with reusable services, fine-grained permissions, approval workflows, auditability, and governance controls

- Experience with high-throughput job orchestration, message queues, event buses, streaming systems, or distributed rendering workloads

- Experience with enterprise data connectivity, CRM or customer-data platforms, personalized content systems, or customers in regulated industries such as banking, financial services, and insurance

- Experience with PostgreSQL

- Experience with automated browser testing frameworks

- Experience with event-driven systems, background jobs, message queues, or asynchronous processing

- Experience integrating third-party applications or services

- Experience in an Agile or iterative product-development environment