Senior AI Full-Stack Developer, Python/React

August 1

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OneSeven Tech (OST)

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B2B • Artificial Intelligence • SaaS

OneSeven Tech (OST) is a digital product studio specializing in software design and engineering for startups, SMBs, and enterprises. With a team of global software and AI experts, OST has been in business for 7 years, successfully completing 88 projects for over 62 clients across various industries. The company focuses on providing services such as product strategy, web and mobile app development, and AI/ML integration. Known for its innovative solutions, OST has expanded its expertise from startups to large enterprises, including publicly traded companies. Their services cater to clients at every stage, from idea generation to growth and enterprise scaling. OST prides itself on a 4. 9 out of 5-star rating from clients for on-time delivery and high-fidelity designs, successfully meeting regulatory requirements in sectors like healthcare with HIPAA compliance.

11 - 50 employees

🤝 B2B

🤖 Artificial Intelligence

☁️ SaaS

📋 Description

• OST is seeking a Senior Full-Stack Engineer to join our team. We are looking for someone who focuses on building and deploying full-scale applications while leveraging cutting-edge AI tools to maximize efficiency and code quality. • A fast-moving U.S.-based compliance startup is building tooling to help Meta advertisers stay within ad policy guidelines—and avoid costly account suspensions. • The team is mid-way through an ambitious delivery cycle, and we’re looking for a senior engineer to jump in and own full-stack features from day one . • This is part of a broader strategy to stabilize sprint velocity, bring in high-signal contributors, and ship production-ready code across both backend and frontend systems. • The Role You’ll join a lean, distributed team and play a critical role in delivering features that support advertiser compliance at scale. • Your day-to-day will involve: Shipping reliable, production-grade code in Python (Flask) and React; Supporting sprint milestones by building, optimizing, and maintaining platform features; Integrating with backend task orchestration using Celery and AI-driven workflows using Crew AI; Work independently, while syncing with team lead and the broader product team; Owning your output and maintaining momentum across 4–6 sprint cycles • About You You’ve seen what it takes to ship features in fast-paced, distributed environments. You value clarity, autonomy, and clear ownership. You don’t need micromanagement—and you communicate well enough to make async work feel seamless. You’re a calm, focused contributor who enjoys working across the stack and knows how to unblock yourself or others without waiting for standups. You might be based anywhere in the world, but you’re available for collaboration windows with PH or EMEA teams and can commit to 30–40 hours/week (with some flexibility).

🎯 Requirements

• 5+ years of full-stack experience • Python (Flask) – solid production experience • React – can build and maintain dynamic frontends • Familiarity with Celery for async task management • Strong async communicator; can manage own time and unblock sprint delivery • Comfortable working in distributed teams and adapting to existing codebases • Bonus Skills • Experience with Crew AI or similar AI orchestration tools • Familiarity with Numpy or other scientific Python packages • Understanding of advertising, compliance, or regulated platforms • Experience in high-trust, fast-delivery consulting or startup environments

🏖️ Benefits

• Fully Remote Position • Contract-based employment with U.S. company • No formal benefits packages available (health insurance, retirement plans) • A Company-paid Personal Time-Off plan that includes Paid Vacation Time, Personal Days, yearly holidays, and Company-sponsored holidays • The longer you're with us, the more generous your benefits become • Active international young team of 15+ individuals