SMS marketing platform for Shopify and Shopify Plus stores, helping ecommerce brands run world-class SMS marketing programs.

Postscript, a rapidly growing SMS marketing platform trusted by over 18,000 Shopify and Shopify Plus stores, is seeking a Senior Software Engineer to join their fully remote team. Founded in 2018 and backed by prestigious investors like Greylock and Y Combinator, Postscript has grown to over 250 employees while maintaining a 100% remote work culture.

As a Senior Software Engineer, you'll play a crucial role in enhancing their core platform and message orchestration systems. The position offers the opportunity to work with modern technologies including React/TypeScript, Python (Flask), Go, and AWS-managed architecture. You'll be responsible for architecting scalable solutions, mentoring team members, and making critical technical decisions that directly impact the business.

The ideal candidate brings 6+ years of professional software development experience, strong expertise in backend development, and a proven track record of building and maintaining applications on AWS. You'll need to be comfortable with both SQL and NoSQL databases, and have experience building modular, flexible architectures.

What makes this role particularly attractive is the combination of technical challenges, leadership opportunities, and the chance to shape a fast-growing product. The position offers a competitive salary range of $170,000-$200,000, plus significant equity, comprehensive benefits, and the flexibility of remote work. If you're passionate about building scalable systems and want to be part of a high-growth startup where your work directly impacts thousands of businesses, this role presents an excellent opportunity for career growth and technical leadership.

Senior Fullstack Engineer role at Postscript, building scalable SMS marketing platform, 6+ YOE, remote, $170-200K + equity, modern tech stack.

Senior Software Engineer, Fullstack

The SMS revenue platform for e-commerce merchants

Postscript, trusted by over 18,000 Shopify and Shopify Plus stores, is revolutionizing SMS marketing for e-commerce. Founded in 2018 and backed by Greylock and Y Combinator, we're a 100% remote organization with 250+ employees. As a Senior Software Engineer, Backend, you'll enhance our core platform and message orchestration systems, enabling conversational messaging for our customers. You'll work with React, Python (Flask), Go, and AWS-managed architecture, solving challenging technical problems while directly impacting our customers and bottom line. The role demands expertise in building scalable distributed systems, technical leadership, and the ability to balance technical constraints with business priorities. You'll have the opportunity to shape architecture and processes as we scale, mentor team members, and contribute to a high-growth startup environment. The position offers competitive compensation ($170K-$200K plus equity), comprehensive benefits, and the flexibility of remote work, all while being part of a mission to make SMS the number-one revenue channel for e-commerce merchants.

Senior Backend Engineer role at Postscript, building scalable SMS marketing platform for e-commerce, offering competitive salary, equity, and remote work.

Senior Software Engineer, Backend

Postscript, founded in 2018, is a rapidly growing SMS marketing automation platform specifically designed for e-commerce, trusted by over 18,000 Shopify and Shopify Plus stores. As a Senior Backend Engineer, you'll be instrumental in enhancing their core platform and message orchestration systems. The role offers the opportunity to work with a modern tech stack including React, Python, Go, and AWS-managed architecture. The company operates as a 100% remote organization with over 250 employees and is backed by notable investors like Greylock and Y Combinator.

The position requires expertise in building scalable distributed systems, with a focus on developing platform primitives and REST APIs. You'll be expected to lead technical decisions, mentor team members, and directly impact the company's growth. The role combines technical leadership with hands-on development, requiring both strong engineering skills and excellent communication abilities.

Postscript offers a competitive compensation package including a base salary range of $170,000-$200,000 plus significant equity, comprehensive benefits, and flexible remote work arrangements. The company values its FEACH principles (Fearlessness, Excellence, Animal, Customer First, and Humility) and is committed to making SMS the number-one revenue channel for e-commerce merchants.

This is an excellent opportunity for experienced engineers who want to make a significant impact in a high-growth startup environment while working with modern technologies and helping shape the future of e-commerce communications.

Senior Backend Engineer role at Postscript, building scalable SMS marketing platform for e-commerce, offering $170K-$200K + equity, remote work, and modern tech stack.

Senior Backend Engineer

SMS marketing platform trusted by 18,000+ Shopify stores, helping ecommerce brands run world-class SMS marketing programs.

Postscript is a rapidly growing SMS marketing platform trusted by over 18,000 Shopify and Shopify Plus stores, including notable brands like Brooklinen, Ruggable, True Classic, and Dr. Squatch. Founded in 2018 as a 100% remote organization, we've grown to over 250 employees and are backed by prestigious investors including Greylock and Y Combinator.

As a Senior Software Engineer at Postscript, you'll play a crucial role in enhancing our core platform and message orchestration systems. You'll work with a modern tech stack including React, Python (Flask), Go, and AWS-managed architecture. The position offers the unique opportunity to shape the future of ecommerce SMS marketing while working in a fully remote environment.

Your responsibilities will include architecting scalable systems, mentoring team members, and making critical technical decisions that directly impact our customers and business growth. We're looking for someone with at least 6 years of professional software development experience, strong expertise in backend development, and experience with both SQL and NoSQL databases.

The role offers a competitive salary range of $170,000-$200,000 plus significant equity, comprehensive benefits, and the flexibility of remote work. You'll be joining a high-growth startup where you can directly impact the company's success and grow your career. We value technical excellence, user empathy, and strong communication skills.

If you're passionate about building great products, solving challenging technical problems, and working in an early-stage environment where you can make a significant impact, this role at Postscript could be perfect for you. Join us in our mission to make SMS the number-one revenue channel for ecommerce merchants.

Senior Software Engineer role at Postscript, building scalable SMS marketing platform for Shopify stores, remote work, $170-200K salary plus equity.

Senior Software Engineer

SMS marketing platform for Shopify and Shopify Plus stores, helping ecommerce brands manage subscriber lists and drive sales.

Postscript is revolutionizing ecommerce marketing through their SMS platform, trusted by over 18,000 Shopify and Shopify Plus stores including major brands like Brooklinen, Ruggable, True Classic and Dr. Squatch. Founded in 2018 and backed by prestigious investors like Greylock and Y Combinator, Postscript has grown to over 250 employees while maintaining a 100% remote work culture.

As a Solutions Engineer, you'll be the technical bridge between sales and product teams, working closely with multiple departments to help customers realize their conversational commerce goals. Your role involves conducting technical discovery calls, preparing and delivering advanced platform demos, managing proof of concepts, and providing expert guidance on API integrations.

The ideal candidate brings 3+ years of solutions engineering experience or 5+ years in technical customer-facing roles, with strong knowledge of ecommerce (particularly the Shopify ecosystem). You'll need technical proficiency in front-end technologies and APIs, excellent communication skills, and the ability to handle complex technical discussions with both executive and operational stakeholders.

This role offers an excellent opportunity to join a high-growth startup where you can directly impact the company's success. The position is fully remote, offering competitive compensation ($120,000-$136,000 plus variable compensation), significant equity, comprehensive benefits, and flexible PTO. At Postscript, you'll be part of a passionate team dedicated to making SMS the primary revenue channel for ecommerce merchants.

Remote Solutions Engineer position at Postscript, helping ecommerce brands implement SMS marketing solutions through technical expertise and customer collaboration.

Solutions Engineer

SMS revenue platform for e-commerce merchants, trusted by over 18,000 Shopify stores

Postscript, founded in 2018, is revolutionizing e-commerce marketing through its SMS platform, serving over 18,000 Shopify and Shopify Plus stores. As a Senior Backend Engineer on the Data Platform team, you'll be at the forefront of building cross-domain data services and integrations. The role focuses on designing end-to-end data pipeline solutions, from ingestion to service development, supporting both product features and internal BI initiatives. The position is crucial for advancing product-driven AI efforts and ensuring reliable data flow throughout the platform.

The company, backed by Greylock and Y Combinator, operates as a 100% remote organization with over 250 employees. They're on a mission to make SMS the number-one revenue channel for e-commerce merchants by providing comprehensive tools for subscriber list growth, messaging strategy development, customer service, and sales driving capabilities.

This role offers an excellent opportunity to work with modern technologies including Go, Python, and various AWS services, while building scalable distributed systems. You'll be handling complex data integration challenges, working with various data persistence technologies, and contributing to the architecture of event-driven systems. The position offers competitive compensation ($170K-$200K base salary plus equity), comprehensive benefits, and the flexibility of remote work.

The ideal candidate will bring strong technical expertise in distributed systems, data engineering, and cloud services, combined with the ability to mentor team members and drive technical decisions. You'll be joining a high-growth startup where you can directly impact the company's success while growing your career in a supportive, values-driven environment.

Senior Backend Engineer role at Postscript focusing on data platform development, offering competitive salary and remote work flexibility.

Senior Backend Engineer, Data Platform

SMS marketing platform for Shopify and Shopify Plus stores, helping ecommerce brands grow subscriber lists and drive sales.

Postscript, a rapidly growing SMS marketing platform trusted by over 18,000 Shopify and Shopify Plus stores, is seeking a Senior Software Engineer for their Data Platform team. Founded in 2018 and backed by prestigious investors like Greylock and Y Combinator, Postscript has grown to over 250 employees while maintaining a 100% remote work culture.

The role focuses on enriching Postscript's product with cross-domain data services and integration. You'll be responsible for designing and building end-to-end data pipeline solutions, handling everything from data ingestion to service development. This position is crucial for ensuring data reliability across the platform and advancing product-driven AI initiatives.

As an ideal candidate, you'll bring 5+ years of experience with Go and Python, along with extensive knowledge of distributed systems, AWS services, and various data persistence technologies. You'll work with cutting-edge event-driven systems and infrastructure-as-code technologies, making this an excellent opportunity for someone who enjoys tackling complex technical challenges.

The position offers a competitive salary range of $170,000-$200,000, plus significant equity, comprehensive benefits, and the flexibility of remote work. You'll join a high-growth startup where you can directly impact the company's success and grow your career while working with a passionate team dedicated to making SMS the number-one revenue channel for ecommerce merchants.

Senior Software Engineer position at Postscript, building data platform solutions for leading SMS marketing platform, offering remote work and competitive compensation.

Senior Software Engineer, Data Platform

SMS marketing platform for Shopify stores, trusted by 18,000+ merchants to run world-class SMS marketing programs.

Postscript, a rapidly growing SMS marketing platform trusted by over 18,000 Shopify and Shopify Plus stores, is seeking a Lead Fullstack Engineer for their App Systems Team. Founded in 2018 and backed by prestigious investors like Greylock and Y Combinator, Postscript has grown to over 250 employees while maintaining a 100% remote culture.

As a Lead Fullstack Engineer, you'll be instrumental in architecting and building core pricing, billing, and authentication components for their messaging and AI products. The role combines technical leadership with hands-on development, working primarily with a Python monolith and Go microservices stack, complemented by React and TypeScript on the frontend. Data management involves Postgres, MongoDB, and Snowflake.

The position offers significant autonomy and impact, with responsibilities including guiding technical decisions, mentoring team members, and helping transition to a more microservices-centric architecture. You'll be working on innovative pricing paradigms for AI integrations while ensuring the security and integrity of onboarding and billing frameworks.

This is an excellent opportunity for a seasoned engineer who enjoys the dynamics of an early-stage company and wants to make a meaningful impact on both product and organizational growth. The role combines technical expertise with leadership, requiring strong communication skills and the ability to balance technical constraints with business priorities.

Working in a fully remote environment, you'll join a passionate team that values curiosity, technical excellence, and user empathy. The position offers competitive compensation, equity opportunities, comprehensive benefits, and the flexibility of remote work, making it ideal for someone who thrives in a high-growth, autonomous environment while contributing to a product that's reshaping e-commerce marketing.

Lead Fullstack Engineer position at Postscript, building core SMS marketing platform components with Python, Go, and React in a remote environment.

Lead Fullstack Engineer

Postscript, a rapidly growing SMS marketing platform trusted by over 18,000 Shopify and Shopify Plus stores, is seeking a Senior Fullstack Engineer to join their App Systems Team. Founded in 2018 and backed by prestigious investors like Greylock and Y Combinator, Postscript has grown to over 250 employees while maintaining a 100% remote culture.

As a Senior Fullstack Engineer, you'll be instrumental in creating powerful user experiences for shops onboarding onto Postscript's product offerings, including AI solutions and billing systems. The role combines technical leadership with hands-on development, working primarily with React, Python, and Go microservices in a hybrid architecture environment.

The position offers an attractive compensation package of $170,000-$200,000 plus significant equity, along with comprehensive benefits including health, dental, and vision insurance. Working in a fully remote capacity across North America, you'll have the opportunity to make a direct impact on both the product and company growth.

The ideal candidate brings strong experience in backend development, API design, and modern web technologies, coupled with the ability to mentor others and drive technical decisions. You'll be joining a dynamic, fast-paced environment where your contributions will directly influence customer success and company growth.

This role is perfect for someone who thrives in early-stage companies, enjoys building new solutions, and wants to be part of a mission to make SMS the number-one revenue channel for ecommerce merchants. The position offers significant autonomy, growth potential, and the chance to shape the future of e-commerce marketing technology.

Senior Fullstack Engineer position at Postscript, building SMS marketing solutions for Shopify stores with React, Python, and Go in a remote environment.

Senior Fullstack Engineer

Postscript redefines marketing for ecommerce companies by introducing SMS as a new channel for engagement, retention, and customer conversion.

Postscript is revolutionizing e-commerce marketing through SMS technology, backed by prestigious investors like Greylock and Y Combinator. As a Senior Fullstack Engineer on the App Systems Team, you'll be at the forefront of creating powerful user experiences for shops integrating with Postscript's product offerings, including AI solutions and billing systems.

The role combines frontend and backend development using React, Python, and Go microservices in a hybrid architecture. You'll work with technologies like PostgreSQL, MongoDB, and Snowflake, while having the opportunity to shape the technical direction of a rapidly growing platform. The position offers the perfect blend of technical challenges and business impact, as your work will directly influence customer acquisition and retention.

As a senior team member, you'll have significant autonomy and responsibility in technical decision-making, mentoring other engineers, and driving architectural decisions. The role is fully remote in North America, offering a competitive base salary of $170,000-$200,000 plus significant equity. You'll be joining a high-growth startup where you can directly impact the company's success and grow your career.

The ideal candidate brings strong experience in both frontend and backend development, with expertise in React, Python, and Go. You should be passionate about building great products, especially in early-stage companies, and have a track record of leading high-performing teams. This is an excellent opportunity for someone who thrives in a remote-first environment and wants to be part of shaping the future of e-commerce marketing.

Senior Fullstack Engineer position at Postscript, building e-commerce SMS marketing solutions using React, Python, and Go, with competitive compensation and remote work flexibility.

Postscript is redefining marketing for ecommerce companies by introducing SMS as a new channel for engagement, retention, and conversion.

Postscript is revolutionizing ecommerce marketing by introducing SMS as a powerful new channel for customer engagement, retention, and conversion. As a Senior Backend Engineer on the Flow Builder team, you'll play a crucial role in enhancing our message orchestration platform. You'll architect and build scalable, extensible systems using Go, Python, and AWS, contributing to a high-growth startup backed by top investors like Greylock and Y Combinator.

Your responsibilities include developing REST APIs, guiding the team in technical decisions, and mentoring other engineers. You'll work on migrating from a monolithic architecture and optimizing our systems for maximum throughput and efficiency. This fully remote position offers the opportunity to have a significant impact on both our customers and business.

The ideal candidate has 6-8 years of professional software development experience, expertise in Go and Python, and familiarity with AWS and database modeling (Postgres). You should be passionate about early-stage companies, have excellent communication skills, and enjoy solving challenging problems.

Join Postscript to be part of a fast-growing team, work on cutting-edge technology, and help shape the future of ecommerce marketing. You'll enjoy competitive compensation, flexible PTO, comprehensive benefits, and the chance to grow your career in a dynamic, high-impact role.

Senior Backend Engineer at Postscript: Build scalable SMS marketing platform for ecommerce using Go, Python, and AWS.

At Postscript, we're leveraging AI to revolutionize SMS performance, driving measurable revenue gains through continuous self-improvement, proven by real-time testing. As the online shopping landscape grows, the demand for scalable, personalized customer engagement solutions is unprecedented.

As a Senior Full-Stack Engineer (Front-End Leaning) on the Conversations AI Team, you'll be at the forefront of innovation, using your expertise in both front-end and back-end technologies to push the boundaries of conversational AI. You'll focus on rapid prototyping and build intuitive, scalable interfaces that enhance our AI-driven conversational tools, driving real-time engagement with millions of users. Your work will directly impact Postscript's bottom line and our customers' success by transforming SMS into their most powerful revenue channel.

This role offers a unique opportunity to blend cutting-edge AI capabilities with modern front-end development practices, contributing to Postscript's vision of next-level customer engagement.

What You'll Do:
• Architect, build, and maintain scalable, high-performance full-stack applications, with a focus on intuitive user interfaces using React and TypeScript.
• Collaborate closely with cross-functional teams to integrate LLMs, OpenAI models, and RAG techniques into our platform, ensuring real-time, personalized SMS engagement.
• Rapidly prototype new features and user interfaces, iterating quickly to deliver customer-focused solutions.
• Contribute to backend systems using Python (Flask) and AWS to power our AI-driven tools, ensuring seamless integration with front-end components.
• Lead the design and deployment of highly available, modular systems that scale to millions of users.
• Mentor and guide other engineers, fostering a culture of learning and continuous improvement.
• Balance technical excellence with rapid development to meet the evolving needs of the product and business.

What We're Looking For:
• Strong experience in front-end development with React and TypeScript, with a passion for building modern, intuitive user interfaces.
• Expertise in full-stack development, with solid experience in Python (Flask) and building scalable backend systems.
• Fluency in CSS, with the ability to create responsive, maintainable, and visually appealing interfaces that align with modern UI/UX principles.
• Minimum 6-8 years of professional software development experience, with 1-2 years at minimum in AI solutions preferred.
• Proven track record of rapid prototyping and delivering high-quality features quickly.
• Experience with AWS architecture, relational databases, and building high-performance APIs.
• Ability to lead app projects from concept to delivery, managing ambiguity and driving results.
• Experience mentoring and leading engineering teams, with a collaborative mindset and excellent communication skills.

What We'll Love About You:
• You're curious and enthusiastic—you love building things
• Energized by early stage companies and the opportunity to own and improve a new, fast-growing codebase
• You can drive technical decisions by measuring trade offs informed by both business priorities and technical needs
• You have empathy for users and enjoy helping others
• Bonus: Remote work experience. You love working on a remote-first team

Senior Fullstack Engineer for AI-driven SMS marketing platform, focusing on React, TypeScript, and Python development.

Senior Fullstack Engineer, Conversations AI

At Postscript, we're leveraging AI to revolutionize SMS performance, driving measurable revenue gains through continuous self-improvement, proven by real-time testing. As the online shopping landscape grows, the demand for scalable, personalized customer engagement solutions is unprecedented.

As a Senior Backend Engineer on the Conversations AI Team, you'll be at the forefront of innovation, using your expertise in OpenAI, Large Language Models (LLMs), and Retrieval-Augmented Generation (RAG) to push the boundaries of conversational AI. You'll architect, build, and refine systems that enable our AI agents to learn, adapt, and deliver personalized shopping experiences that scale to millions of users. Your work will have a direct impact on Postscript's bottom line and our customers' success by helping SMS become their most powerful revenue channel.

This role offers a unique opportunity to influence how AI can drive next-level customer engagement and guide the team in crafting solutions that combine technical excellence with business value.

What You'll Do:
- Architect, build, and maintain scalable, high-performance APIs for our AI-driven conversational tools, ensuring seamless and efficient customer interactions via SMS.
- Work closely with cross-functional teams to integrate LLMs, OpenAI models, and RAG techniques into our AI platform, driving personalized, real-time customer engagement.
- Lead the design and deployment of highly available, modular, and scalable backend systems on AWS, using Python (Flask) and other modern technologies.
- Innovate on acquisition tools that collect valuable customer data and contribute directly to the growth of our clients' SMS subscriber lists.
- Own the implementation of new AI features from start to finish, collaborating with product managers and designers to deliver customer-focused solutions.
- Mentor and guide other engineers, fostering a culture of continuous improvement and learning.
- Lead with technical excellence, balancing the need for immediate solutions with long-term scalability and maintainability.

What We're Looking For:
- Strong experience working with OpenAI, LLMs, and RAG, with a passion for implementing cutting-edge AI-driven solutions.
- Minimum 6-8 years professional software development experience, with 1-2 years at minimum in AI solutions
- Proven track record of building and scaling backend systems, ideally in high-growth or early-stage environments.
- Expertise in Python (Flask, SQLAlchemy) and building robust, modular APIs, with a focus on extensibility and performance.
- Deep understanding of relational databases, data modeling, and AWS architecture, with a focus on high observability and scalability.
- Ability to lead app projects from conception to delivery, managing ambiguity, and driving results.
- Experience mentoring and leading engineering teams, with a collaborative mindset and excellent communication skills.
- Familiarity with modern frontend technologies (TypeScript, Lit Web Components) and a willingness to work across the stack as needed.

What We'll Love About You:
- You're curious and enthusiastic—you love building things
- Energized by early stage companies and the opportunity to own and improve a new, fast-growing codebase
- You can drive technical decisions by measuring trade offs informed by both business priorities and technical needs
- You have empathy for users and enjoy helping others
- Bonus: Remote work experience. You love working on a remote-first team

Senior Backend Engineer for Conversations AI at Postscript, leveraging OpenAI, LLMs, and RAG to revolutionize SMS marketing for ecommerce.

Senior Backend Engineer, Conversations AI

At Postscript, we're leveraging AI to revolutionize SMS performance, driving measurable revenue gains through continuous self-improvement, proven by real-time testing. As the online shopping landscape grows, the demand for scalable, personalized customer engagement solutions is unprecedented.

As a Senior Backend Engineer on the Conversations AI Team, you'll be at the forefront of innovation, using your expertise in OpenAI, Large Language Models (LLMs), and Retrieval-Augmented Generation (RAG) to push the boundaries of conversational AI. You'll architect, build, and refine systems that enable our AI agents to learn, adapt, and deliver personalized shopping experiences that scale to millions of users. Your work will have a direct impact on Postscript's bottom line and our customers' success by helping SMS become their most powerful revenue channel.

This role offers a unique opportunity to influence how AI can drive next-level customer engagement and guide the team in crafting solutions that combine technical excellence with business value.

What You'll Do:
- Architect, build, and maintain scalable, high-performance APIs for our AI-driven conversational tools, ensuring seamless and efficient customer interactions via SMS.
- Work closely with cross-functional teams to integrate LLMs, OpenAI models, and RAG techniques into our AI platform, driving personalized, real-time customer engagement.
- Lead the design and deployment of highly available, modular, and scalable backend systems on AWS, using Python (Flask) and other modern technologies.
- Innovate on acquisition tools that collect valuable customer data and contribute directly to the growth of our clients' SMS subscriber lists.
- Own the implementation of new AI features from start to finish, collaborating with product managers and designers to deliver customer-focused solutions.
- Mentor and guide other engineers, fostering a culture of continuous improvement and learning.
- Lead with technical excellence, balancing the need for immediate solutions with long-term scalability and maintainability.

What We're Looking For:
- Strong experience working with OpenAI, LLMs, and RAG, with a passion for implementing cutting-edge AI-driven solutions.
- Minimum 6-8 years professional software development experience, with 1-2 years at minimum in AI solutions
- Proven track record of building and scaling backend systems, ideally in high-growth or early-stage environments.
- Expertise in Python (Flask, SQLAlchemy) and building robust, modular APIs, with a focus on extensibility and performance.
- Deep understanding of relational databases, data modeling, and AWS architecture, with a focus on high observability and scalability.
- Ability to lead app projects from conception to delivery, managing ambiguity, and driving results.
- Experience mentoring and leading engineering teams, with a collaborative mindset and excellent communication skills.
- Familiarity with modern frontend technologies (TypeScript, Lit Web Components) and a willingness to work across the stack as needed.

What We'll Love About You:
- You're curious and enthusiastic—you love building things
- Energized by early stage companies and the opportunity to own and improve a new, fast-growing codebase
- You can drive technical decisions by measuring trade offs informed by both business priorities and technical needs
- You have empathy for users and enjoy helping others
- Bonus: Remote work experience. You love working on a remote-first team

What You'll Love About Us:
- High growth startup - plenty of room for you to directly impact the company and grow your career!
- Work from home (or wherever)
- Fun - We're passionate and enjoy what we do
- Competitive compensation and opportunity for equity
- Flexible paid time off
- Health, dental, vision insurance

Senior Backend Engineer role at Postscript, focusing on AI-driven SMS marketing solutions using OpenAI, LLMs, and RAG technologies.

Postscript Engineering Jobs

SMS marketing platform for Shopify and Shopify Plus stores, helping ecommerce brands run world-class SMS marketing programs.