Senior Fullstack Engineer, Customer Context

🕒 October 5

🌐 United States, Canada – Remote

🇺🇸 United States – Remote 🇨🇦 Canada – Remote

💵 $175k - $205k / year

⏰ Full Time

🟠 Senior

🛠️ Implementation Specialist

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Postscript

WebsiteLinkedInAll Job Openings

201 - 500 employees

📣 Marketing

🤝 B2B

🏢 Enterprise

Marketing • B2B • Enterprise

Postscript is a leading SMS marketing platform focused on helping brands grow their audience, create personalized messaging, and drive revenue through SMS communication. With powerful AI features for message optimization and brand insights, Postscript provides tools for creating, sending, and managing SMS campaigns effectively. The platform includes compliance features to ensure adherence to SMS laws, innovative solutions like CashBack for boosting margins, and expert guidance through Postscript Plus to optimize SMS strategies. Postscript stands out for its ability to seamlessly integrate with other customer service and marketing platforms, ensuring a comprehensive approach to customer engagement and retention.

📋 Description

• Take ownership of systems and product areas and become the go-to technical expert • Investigate, design, and execute solutions across distributed systems • Architect, build, and maintain highly available, scalable REST APIs and backend services • Drive system decoupling, modularization, and technical debt reduction • Build agentically using concurrent autonomous agent workflows and own the output • Stay current with emerging AI tooling and practices and share techniques with the team • Help shape how AI is integrated into engineering systems and workflows • Collaborate with product, data, and go-to-market teams in an async-first environment • Identify and eliminate single points of failure and improve system resilience and knowledge redundancy • Improve engineering workflows through better tools and internal utilities

🎯 Requirements

• 6+ years of experience building large-scale data-intensive backend systems and APIs • Active, daily use of AI coding tools such as Claude Code, Codex, Cursor, Copilot, or equivalent • Proficiency in some or all of Python, Go, Rust, React, and TypeScript • Close following of AI tooling landscape, model releases, agentic workflows, and best practices • Ability to critically evaluate AI output, identify risks, and verify results • Ability to context switch quickly across concurrent workstreams • Experience with 0-to-1 initiatives and complex existing systems • Working knowledge of event-driven distributed systems and Kafka • Familiarity with distributed data processing technologies such as Flink or Spark • Experience growing systems under production customer load, ideally to multi-terabyte scale • Experience designing high-scale systems on AWS with RDBMS, OLAP, NoSQL, and other database technologies • Knowledge of relational data modeling, index strategies, and performant SQL for transactional and analytical workloads • Experience with infrastructure as code such as Terraform • Familiarity building and observing applications on AWS and Kubernetes, ideally with Datadog, Signoz, or comparable observability tooling • Clear, direct communication and proactive information sharing in cross-functional and async teams • Strong technical tradeoff judgment informed by engineering best practices and business priorities

🏖️ Benefits

• Significant equity • High growth startup with opportunity to directly impact the company and grow your career • Work from home (or wherever in US / Canada) • Competitive compensation and opportunity for equity • Flexible paid time off • Health, dental, vision insurance

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