Senior Software Engineer, Full Stack

Postscript · Remote

Pay

Not listed

Setting

Remote

Apply Sign in to mark as applied ← Back to all jobs

Senior Software Engineer, Full Stack Remote Apply Postscript is the AI messaging platform trusted by 20,000+ Shopify brands — including Brooklinen, Ruggable, True Classic, and Dr. Squatch. With a mission to make SMS your number one revenue driving channel, we built the best-in-class SMS marketing platform and launched revenue-driving AI features not available on any other platform. And we're just getting started. Backed by Greylock and Y Combinator, fully remote since 2018. As a Senior Software Engineer at Postscript, you'll be a high-ownership contributor to one of our core product or platform teams — owning meaningful systems end-to-end, driving technical quality, and helping shape how we build across the organization. Our engineering teams operate at the intersection of scale and product velocity, which means you'll be working on distributed systems that matter to the business while also influencing the technical standards that allow Postscript to grow sustainably. This is a high-autonomy role for engineers who are energized by ambiguity, take genuine ownership of their work, and bring a strong point of view on how to build things well — without sacrificing speed or pragmatism. AI isn't a nice-to-have here — it's central to how we work. We expect our engineers to be active practitioners of AI-first development: fluent with the latest agentic coding tools, curious about what's emerging, and constantly pushing the boundary of what's possible with AI in their day-to-day craft. If you're the kind of engineer who's already experimenting with new models and tooling before anyone asks you to, you'll feel at home here. As a senior engineer at Postscript, you’ll no longer be only writing code but orchestrating it. This position is fully remote and can be based in the US or Canada. Primary Duties Take deep ownership of systems and product areas on your team — becoming the go-to technical expert for what you own Independently investigate, design, and execute solutions across distributed systems with a high degree of ambiguity Architect, build, and maintain highly available, scalable REST APIs and backend services for internal and external use Drive system decoupling, modularization, and technical debt reduction — improving long-term maintainability without blocking near-term delivery Build agentically as your default: leveraging concurrent autonomous agent workflows, owning the output, and keeping a steady queue of aligned work moving Stay at the forefront of emerging AI tooling and practices, bringing new techniques back to the team and helping raise the floor for how Postscript engineers work Contribute to how we think about integrating AI into our systems and workflows — not just using AI tools, but helping shape where and how AI creates leverage across the engineering org Collaborate cross-functionally with product, data, and go-to-market teams — communicating clearly and proactively in an async-first environment Identify and eliminate single points of failure, improving system resilience and knowledge redundancy across your team Improve how engineering gets done: bring better tools, fix workflow friction, build internal utilities when the leverage compounds What We'll Love About You 6+ years of experience building large-scale backend systems and APIs You are an active, daily user of AI coding tools and are using them to maximize your output — Claude Code, Cursor, Copilot, or equivalent — and can speak concretely to how they've changed your output and your workflow Tech stack: Python, Go, React, and TypeScript; experience with Kubernetes, AWS, Datadog, and relational/NoSQL databases. You run agentic workflows autonomously and concurrently. You follow the AI tooling landscape closely: new model releases, emerging agentic workflows, and evolving best practices aren't things you catch up on eventually — they're things you're tracking in real time You think critically about AI output — you know where it accelerates you, where it introduces risk, and how to verify what it produces You are able to context switch extremely quickly across concurrent workstreams Experience working on both 0-to-1 initiatives and complex existing systems — and knowing how to balance building new things with improving what's there Strong command of relational and NoSQL databases, SQL, and thoughtful database modeling Familiarity building and observing applications on AWS, and ideally with Datadog or comparable observability tooling Clear, direct communication — cross-functional partners and async teams can count on you to surface information proactively Strong instincts for technical tradeoffs informed by both engineering best practices and business priorities What You'll Love About Us Salary range of USD $175,000–$205,000 base plus significant equity (we do not have geo-based salaries) 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 For information about how we use your personal data, please see our U.S. Job Applicant Privacy Notice You are welcome here. Postscript is an ever-evolving place of equal employment for talented individuals. Get new jobs like this in your inbox We'll email you when Postscript posts a job like this one. Create alert Apply for this job * indicates a required field Autofill my application First Name* Last Name* Email* Phone Country* Phone* Resume/CV* Attach Attach Enter manually Enter manually Accepted file types: pdf, doc, docx, txt, rtf Cover Letter Attach Attach Enter manually Enter manually Accepted file types: pdf, doc, docx, txt, rtf Will you now or in the future require sponsorship to work in the US?* Select... LinkedIn Profile Website Postscript Demographic Questions and Categorizations At Postscript, we are committed to creating an inclusive workplace that values diversity. We firmly believe that companies diverse in, for example, age, gender identity, race, sexual orientation, ethnicity, and perspective are better because of it. However, even beyond that belief, we simply want to strive for what's right. For this reason, we are asking candidates to voluntarily self-identify through a few demographic questions. Our purpose in collecting this information is to help us assess our outreach efforts and diversity representation goals. Your responses will not be linked to your identity or your application, and neither recruiters nor hiring managers can see this information at an individual level. Your responses are stored in the aggregate and will not play any role in our hiring decision. Your decision to participate or not participate in this survey will have no impact on your candidacy at Postscript. What Race/Ethnicity do you identify as? (select all that apply) * Select... What gender do you identify as?* Select... Do you consider yourself a part of the LGBTQ+ community?* Select... Which age group are you in?* Select... Voluntary Self-Identification For government reporting purposes, we ask candidates to respond to the below self-identification survey. Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiring process or thereafter. Any information that you do provide will be recorded and maintained in a confidential file. As set forth in Postscript’s Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law. Gender Select... Are you Hispanic/Latino? Select... Race & Ethnicity Definitions If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection. As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measure the effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categories is as follows: A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability. A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service. An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense. An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985. Veteran Status Select... Voluntary Self-Identification of Disability Form CC-305 Page 1 of 1 OMB Control Number 1250-0005 Expires 07/31/2029 Why are you being asked to complete this form? We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress towards this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years. Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) website at www.dol.gov/ofccp. How do you know if you have a disability? A disability is a condition that substantially limits one or more of your “major life activities.” If you have or have ever had such a condition, you are a person with a disability. Disabilities include, but are not limited to: Alcohol or other substance use disorder (not currently using drugs illegally) Autoimmune disorder, for example, lupus, fibromyalgia, rheumatoid arthritis, HIV/AIDS Blind or low vision Cancer (past or present) Cardiovascular or heart disease Celiac disease Cerebral palsy Deaf or serious difficulty hearing Diabetes Disfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disorders Epilepsy or other seizure disorder Gastrointestinal disorders, for example, Crohn's Disease, irritable bowel syndrome Intellectual or developmental disability Mental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSD Missing limbs or partially missing limbs Mobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supports Nervous system condition, for example, migraine headaches, Parkinson’s disease, multiple sclerosis (MS) Neurodivergence, for example, attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilities Partial or complete paralysis (any cause) Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysema Short stature (dwarfism) Traumatic brain injury Disability Status Select... PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete. Submit application Powered by

Listed by Postscript for a position based in the United States. Employers on this board attest they are hiring domestically.