Software Engineer, Marketing Systems

About Sequel

Sequel, headquartered in Manchester, New Hampshire, is a company developing the next generation of transformative drug-delivery advancements starting with diabetes. Sequel’s approach is to look at diabetes management holistically to advance systems that make living with diabetes simpler and easier for all. Sequel’s flagship product, the twiist Automated Insulin Delivery (AID) System, launched in July 2025 for people with type 1 diabetes providing them with personalized diabetes management.

Sequel Med Tech is seeking an experienced Staff Software Engineer to partner directly with Marketing, Product, and Business stakeholders to design, build, and operate our marketing and related web experience stack. You’ll own end-to-end engineering across Salesforce Marketing Cloud (SFMC), CMS platforms (Webflow), and data pipelines/analytics, ensuring reliable delivery, accurate measurement, and compliant handling of customer data. Technologies such as AMPscript, SSJS, SQL, Journey Builder, Marketing Intelligence and Personalization, Automation Studio are core to the role.

As a Staff Software Engineer, you will play a pivotal role in shaping the future of healthcare for people living with diabetes, working directly with our product teams as a subject matter expert on feature design and implementation.

• Own end-to-end engineering across SFMC; define patterns, reusable templates, observability using AMPscript, SSJS, HTML/CSS and JavaScript. Create scalable architecture across journeys, automations, and Cloud Pages.
• Architect and own integrations with upstream/downstream systems (e.g., CRM, CDP, Data Lakehouse, Snowflake) via APIs, connectors, ETL/ELT jobs, and eventing. Define reliability standards, data integrity checks, and event-driven pipelines.
• Design and enforce deliverability strategy; own governance around sender reputation, DMARC, list hygiene, complaints/bounces.
• Architect CMS component libraries; enforce performance budgets; lead accessibility/SEO strategy; define secure capture patterns.
• Define tracking and attribution strategy (UTMs, GA4, server-side tagging where appropriate); design analytics frameworks; ensure proper QA and data fidelity across journeys, web, and experiments.
• Lead modeling discussions; define segmentation logic and long-term audience architecture; set QA gates and “always-on” metric governance.
• Serve as compliance engineering SME; design systems ensuring compliance-by-default; work directly with Legal/Security for risk controls.
• Own security posture for marketing systems; define least-privilege patterns, data minimization strategy, PHI workflows.
• Lead technical reviews; mentor engineers and marketing technology contributors; drive architectural decisions; evangelize best practices across the organization.
• Lead ambiguous problem definition; define technical roadmaps aligned with business outcomes; shape long-term platform strategy.
• Define engineering standards; establish automation practices; ensure audit readiness; shape CI/CD for marketing systems.
• Platform-level ownership (SFMC ecosystem, CMS systems, integrations, data patterns).
• Engineer solutions that meet CAN-SPAM, GDPR/CCPA, and HIPAA expectations where applicable; follow Sequel SDLC, documentation, and audit guardrails (e.g., Part 11/GxP as required by process).
• Identify and execute process improvements and opportunities to streamline. Support enforcement of good coding and testing habits.

• Bachelor's degree in Computer Science or related field, or equivalent combination of education and work experience
• 6+ years of experience in software engineering, demonstrating increasing technical breadth and responsibility
• 5+ years of experience troubleshooting and training on enterprise email marketing platforms (SFMC preferred)
• 5+ years of experience implementing SFMC solutions including complex and cross-feature implementations.

• Experience with building Pages, Microsites, Forms and form Processing
• Expert level HTML/CSS (email), JavaScript, AMPscript/SSJS, SQL skills
• Deep knowledge of Marketing Cloud/APIs, Data Extensions and…