Senior Full-Stack Engineer | San Francisco, CA, USA

Senior Full-Stack Engineer Please note that we will never request payment or bank account information at any stage of the recruitment process. As we continue to grow our teams, we urge you to be cautious of fraudulent job postings or recruitment activities that misuse our company name and information. Please protect your personal information during any recruitment process. While Monks may contact potential candidates via LinkedIn, all applications must be submitted through our official website (monks.com/careers). The Role We are seeking a seasoned, hands-on Full-Stack Engineer with a proactive, "gets-it-done" attitude to be a foundational member of a new team. You will be instrumental in building the code that brings this new product to life. This role is for a true builder who thrives on ambiguity, loves to tackle "0-to-1" challenges, and can own complex features from the database all the way to the UI. You will be a key technical voice, collaborating directly with product management and other senior engineers to define and deliver on our vision. What You'll Do

• Build from

Scratch:

Write high-quality, maintainable code for both the backend (Python/Node/Go) and frontend (React), working in a balanced 50/50 split.

• Collaborate on

Architecture:

Work closely with Staff Engineers and Product Managers to define and refine the system architecture for a new product.

• Own the

Lifecycle:

Design, develop, test, and maintain new features from concept to production.

Champion Quality:

Write comprehensive unit, integration, and end-to-end tests to ensure code quality and system reliability.

Collaborate Broadly:

Work closely with Product Managers to refine requirements and translate business needs into technical solutions.

• Thrive in

Ambiguity:

Excel in a fast-paced, agile environment where priorities can shift quickly and proactive problem-solving is essential. What You Bring (Must-Haves)

Extensive Experience:

8+ years (14+ preferred) of professional software development experience building complex, large-scale applications.

Proactive & Problem-Solving Mindset:

A "gets-it-done" attitude is your most critical soft skill. You are a self-starter who identifies problems and builds solutions.

Backend Expertise:

3+ years of strong, professional Python/Node.

Js/Go experience in a production environment, building robust APIs and backend services.

Frontend Expertise:

3+ years of strong, professional React experience, with a deep understanding of the modern React ecosystem, including: State Management, UI Libraries, Frameworks, and Testing.

• Commitment to

Testing:

A non-negotiable belief in the importance of comprehensive testing.

Excellent Communication:

The ability to articulate complex technical ideas to technical and non-technical audiences. What We'd Love to See (Nice-to-Haves)

• Proven experience leading or co-leading system architecture decisions.
• Experience with both relational databases (e.g., PostgreSQL, MySQL) and NoSQL databases (e.g., MongoDB, DynamoDB).
• Hands-on experience with Docker and CI/CD pipelines (e.

g., GitHub Actions, Jenkins). What We Offer .Monks has provided a compensation range that represents its good faith estimate of what Media.

Monks may pay for the position at the time of posting .Monks may ultimately pay more or less than the posted compensation range. The salary offered to the selected candidate will be determined based on job-related factors, but not based on a candidate's sex or any other protected status. United States, Remote $90,000 - $95,000 Pending Experience and Seniority. What We Offer Benefits

• Excellent, full coverage medical, dental, and vision insurance
• Generous PTO and 15 company-wide holidays
• 401k with company contribution
• Paid parental leave
• Work-life balance with an emphasis on personal well-being
• Career growth in a disruptor space & entrepreneurial opportunities within the Monks network
• A globally diverse & inclusive culture with employee resource groups such as S4 Melanin, Pride.

Monks, Cultura.

Monks, and more!

• Authentic commitment to DEI efforts and sustainable growth.

(Why Sir Martin Sorrell signed The Climate Pledge here!) This role is subject to our Return to Office (RTO) policy. If you reside within a commutable distance of one of our office locations, you will be expected to work from the office a set number of days per week. The specific details, including the number of required office days, will be in accordance with the company's then-current RTO policy, which is subject to change from time to time. Monks has provided a compensation range that represents its good faith estimate of what Monks may pay for the position at the time of posting. Monks may ultimately pay more or less than the posted compensation range. The salary offered to the selected candidate will be determined based on job-related factors, but not based on a candidate's sex or any other protected status.

Salary Range:

$90,000-$95,000 USD About Monks Monks is the global, digital-first, data-driven, unitary operating brand of S4 Capital plc. With a legacy of innovation and specialized expertise, Monks combines an extraordinary range of global Marketing and Technology Services to redefine how brands interact with the world. Through Monks.

Flow, its flagship AI ecosystem for marketing orchestration, Monks transforms marketing into a growth engine, collapsing timelines and connecting brands to culture in real time. By deploying bespoke intelligent agents across disciplines and delivering culturally relevant, high-impact creative and digital solutions, Monks solves key critical business challenges across the entire brand enterprise to help brands sustain long-term impact. Monks was named a Contender in The Forrester Wave™: Global Marketing Services, ranks among Cannes Lions' Top 10 Creative Companies (2022-25) and remains the only partner featured in AdExchanger's Programmatic Power Players list every year (2020-24). Named Adweek's first AI Agency of the Year (2023) and The One Show's inaugural AI Pioneer Organization, Monks was also awarded Business Intelligence Group's 2025 Excellence in Artificial Intelligence Award in both the Organizational and AI Product categories. As a trusted partner to cutting-edge innovators in tech, Monks earned titles such as Optimizely Experimentation Partner of the Year (2025), runner-up for the Adobe Firefly Partner Award (2024), and Workato's AI Visionary Customer Impact Award (2024). Additionally, Monks achieved a record-breaking number of FWAs and continues to hold the most of any partner. We are an equal-opportunity employer committed to building a respectful and empowering work environment for all people to freely express themselves amongst colleagues who embrace diversity in all respects. Including fresh voices and unique points of view in all aspects of our business not only creates an environment where we can all grow and thrive but also increases our potential to produce work that better represents-and resonates with-the world around us.