Senior Backend Engineer

🕒 April 28

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Postscript

WebsiteLinkedInAll Job Openings

201 - 500 employees

🤝 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 the Fondue product and its underlying architecture — becoming the go-to technical expert for cashback, discounting, and incentives systems • Independently investigate, design, and execute solutions across evolving distributed systems with a high degree of ambiguity • Drive system decoupling and modularization — break down monolithic dependencies into flexible, independently deployable components • Implement AI-first coding practices and tooling to reduce cognitive load, accelerate development cycles, and shorten time-to-market for new capabilities • Help Fondue and other subsidiary products adopt Postscript's core tools, data formats, and technical standards to reduce cross-team friction • Architect, build, and maintain highly available, scalable REST APIs for internal and external use • Collaborate cross-functionally with finance and customer support teams — clear, proactive communication is essential in this role • Contribute to process and technical improvements; someone who can quickly ramp on new systems and propose meaningful changes will thrive here • Identify and eliminate single points of failure, improving knowledge redundancy and overall system resilience

🎯 Requirements

• 4+ years experience building large-scale backend systems and APIs with Typescript experience (Go preferred; Python, Java also valued) • You're experienced with autoscaling strategies for applications deployed on Kubernetes or other container orchestration platforms • You're comfortable — and excited — using agentic coding tools like Claude Code, Cursor, or similar AI-first development tooling • React experience strong nice to have • You've worked on both 0-to-1 initiatives and complex existing systems, and know how to balance building new things with improving what's already there • You have experience with relational and NoSQL databases, SQL, and thoughtful database modeling • You're familiar with building and observing applications on AWS, and ideally Datadog • You communicate with clarity and directness — cross-functional partners and async teams can count on you • You're energized by distributed systems challenges and high-ownership environments • You have strong instincts for technical trade-offs informed by both engineering best practices and business priorities

🏖️ Benefits

• Health, dental, vision insurance • Flexible paid time off • Competitive compensation and opportunity for equity • Fun — we're passionate and enjoy what we do • Work from home (or wherever) • High growth startup — plenty of room for you to directly impact the company and grow your career