Middle to Senior Backend Engineer

Flodesk · (On-site) Da Nang

Posted 6/12/2026 · last confirmed live 8/26/2026

Flodesk is one of the world’s fastest-growing email marketing companies, built to help creators sell online and design emails that people love to get. Our commitment to small business owners is to create simple and intuitive tools that help them grow, nurture, and monetize their email list.   We’re a remote-first company headquartered in San Francisco, California, with a globally distributed team—including an in-person office in Da Nang, Vietnam. Our team reflects the diversity and creativity of the people we serve. Join our mission to level the playing field for small business owners through good design About the Opportunity You will be joining a high-energy, global team with a clear vision: make a thriving business within reach of anyone. We are already a powerhouse in the email space—serving thounsand verified users and delivering 1+ billion emails a month . But we aren’t stopping there. We are expanding beyond email into a whole suite of marketing tool. We are looking for Backend Engineers who are problem solvers. Whether you are a strong builder (Mid-level) or a system architect (Senior), we want you to help us build high-scale infrastructure and new AI products from the ground up. What You Will Do (The Mission) You will not just "code tasks." You will drive business impact by working on: High-Scale Systems: Build and operate backend services that handle 1 billion+ monthly events . You will solve difficult technical challenges like speed, data processing, and stability. Innovation & AI: Explore, utilize, and release the robust backend for an AI application to build a DIFM (Do it for me) marketing tool. APIs & Integrations: Design strong internal and public APIs. You will build integrations with partners like Shopify, Zapier, and WooCommerce. Full Ownership: You own your code from idea to release. You will work directly with Product Managers and Designers to decide how features should work. What you need to be successful We hire for mindset first, technology second. To succeed here, you need: Engineering Skills Our Tech Stack: We primarily use Golang and Node.js on the backend and PostgreSQL for our database. But we are open to any background (Java, Python, PHP, etc.)—we care about your logic, foundation, and problem-solving skills more than the specific language. Critical Thinking: You don't just fix bugs; you find the root cause. You proactively think about edge cases, database bottlenecks, and security before you write code. System Design (For Seniors): You understand how to design complex systems (Distributed systems, Databases) and can explain your choices clearly. You can design systems that stay fast even when traffic increases by 10x. Product Mindset User Focus: You understand that code is a tool to solve user problems. You care about the quality of the product , not just the quality of the code. Curiosity: You ask "Why?" Why are we building this? Is there a simpler way? How does this help the business? Collaboration Ownership: You own your work, learn from mistakes. You don't wait for detailed instructions; you talk to the PM, understand the requirement, and deliver the solution. Communication: You can explain in English technical problems to non-technical people (like Designers or other stakeholders) clearly and respectfully. Teamwork: You value team success. You believe in code reviews and sharing knowledge. You help the team get better every day.  Why you should choose us Impact: Your choice of solutions will directly help thousands of businesses grow. Scale: Few startups offer the chance to work with "Billion-scale" data. Culture: We are a lean, fast-growing team that values Good Design, Trust, and Empowerment. We invest in our people, adapt quickly, and strive to be a great place to work. Perks:  We pay highly competitive salaries + 13th-month bonus. Stock options for high contributors—we want you to own a part of our success. Professional development package of up to $1,000/year (for courses, books, or conferences). Modern office with top-notch equipment (MacBook Pro). Comprehensive healthcare package (Annual health check, Vaccine, Premium Health Insurance) Flexible working hours with a standard 5-day workweek. Flodesk is an equal opportunity employer. We are committed to building a diverse and inclusive workforce and do not discriminate based on race, religion, color, national origin, ancestry, physical disability, mental disability, medical condition, genetic information, marital status, sex, gender, gender identity, gender expression, age, sexual orientation, veteran or military status, or any other legally protected characteristics, Flodesk is committed to providing reasonable accommodations for candidates with disabilities who need assistance during the hiring process. To request a reasonable accommodation, please email people@flodesk.com Notice to California-based Candidates and Vietnam-based Candidates for Employment. This Candidate Privacy Notice is intended to provide information about how Flodesk collects and uses personal information to California consumers and candidates located in Vietnam (Vietnam-based candidates) who apply for employment with Flodesk. If you are employed by Flodesk, refer to the Employee Handbook for additional information. For any questions about this notice, please contact People@flodesk.com. Personal Information Flodesk Collects: Identifiers Including name, address, email, telephone number, social security number, driver license number, passport number, and other personal identifying information. For California-based candidates: Characteristics of protected classifications under California or federal law including demographic information and other personal information obtained during the application process, such as gender, race, national origin. Professional or employment-related information, such as salary/compensation and benefits packages, other relocation or job preferences, prior background, experience, skills, and other information in support of your application, reference information. Any other information you provide as a part of  recruitment, job application, or interview process.  Purposes for Collecting Personal Information: To consider qualifications, skills, and interest for employment. To communicate with you during the recruitment and interview process. To provide compensation, including payroll, and  administer stock options and benefits, including medical, dental, vision, commuter, and retirement benefits. To provide human resources services and conduct performance evaluations. To monitor work eligibility including work-related licenses, credentials, training, and eligibility to work in the United States or in Vietnam. To improve recruitment and interview processes and  ensure a safe and efficient working environment. To comply with applicable legal or regulatory requirements as Flodesk may transfer or store internationally your information, including to or in the United States, European Union and Vietnam and in the cloud, and this data may be subject to the laws and accessible to the courts, law enforcement and national security authorities of such jurisdictions. For Vietnam-based candidates: By clicking "Submit Application", You confirm that you have read the Privacy Notice and agree to allow Flodesk to process your personal data for this application, including cross-border transfer. You have the right to withdraw your consent or request data deletion at any time by contacting people@flodesk.com

This role is published by Flodesk on greenhouse. SwiftFit is not the employer and does not accept applications.