--- title: 'Senior Fullstack Engineer at Placements.io' canonical: 'https://feeny.ai/job/senior-fullstack-engineer-placements-io-taipei-q0ne5qznvc0p' type: 'job' last_seen: '2026-09-17' --- # Senior Fullstack Engineer at Placements.io - **Company:** Placements.io - **Location:** Taipei, Taiwan - **Posted:** 2026-09-15 - **Last confirmed live:** 2026-09-17 - **Apply:** https://job-boards.greenhouse.io/placementsio/jobs/5228475007 ## Job description The Company: Placements AI is building the operating system for advertising. As a product-first company, we are transforming the way digital media publishers, broadcasters, retail media networks, and eCommerce businesses manage their advertising operations through AI-powered technology and automation. Our platform includes AdSalesOS, which enables publishers and retail media networks to manage advertising sales, operations, billing, and revenue reporting, and MarketerOS, which empowers brands and agencies to plan, execute, optimize, and measure advertising investments across multiple channels. Together, our products create a connected ecosystem that helps customers automate complex workflows, improve operational efficiency, and scale their advertising businesses. Headquartered in New York City, Placements AI has a global footprint with offices in Seattle, London, Taipei, and Denver, as well as the APAC region. The Position: As a Senior Fullstack Engineer at Placements.io, you will play a crucial role in designing, developing, and maintaining our cutting-edge advertising technology platform. You will have the opportunity to work with a talented team of engineers and collaborate with cross-functional teams to build robust and scalable solutions that empower our clients in the digital advertising industry. If you prefer backend or frontend, that’s ok too. Our tech stack consists of, but is not limited to: ● Ruby on rails ● Postgres ● React ● Elastic search The Engineering team at Placements tackles a variety of different challenges, including big data problems, perfecting the user experience, and service scalability and reliability. There are opportunities across the stack and you will have the freedom to work on what features interest Responsibilities: - Develop and maintain features for [Placements.io](http://placements.io/)’s advertising technology platform, covering both frontend and backend components. - Collaborate with product managers, designers, and other engineers to gather requirements and translate them into technical specifications. - Build efficient, scalable, and secure code following best practices and coding standards. - Identify and resolve performance bottlenecks and bugs to ensure optimal system performance and stability. - Participate in code reviews to maintain code quality, provide feedback, and encourage knowledge sharing within the team. - Conduct thorough testing and debugging of applications to ensure high reliability and user satisfaction. - Continuously research and evaluate emerging technologies to propose innovative solutions and improvements to existing systems. - Work in an agile development environment, actively participating in sprint planning, daily stand-ups, and other team activities. - Collaborate with cross-functional teams, such as product management and quality assurance, to ensure successful product delivery. - Stay up-to-date with industry trends, best practices, and advancements in web development to drive continuous improvement and innovation. Qualifications: - Bachelor’s or master’s degree in Computer Science, Software Engineering, or a related field. - Solid experience as a Fullstack Engineer, preferably in a fast-paced startup or technology-focused environment. - Proficiency in modern frontend technologies such as JavaScript, HTML5, CSS3, and frameworks/libraries like React.js, Angular, or Antd. - Strong understanding of backend technologies and frameworks - Ruby on Rails an asset. - Experience with server-side development and RESTful APIs. - Knowledge of database systems such as PostgreSQL - Familiarity with cloud platforms and services, such as Heroku, AWS or Google Cloud. - Ability to write clean, modular, and maintainable code with a focus on performance, scalability, and security. - Experience with version control systems like Git and proficiency in using related collaboration tools (e.g., GitHub, GitLab). - Strong problem-solving skills and a proactive mindset to identify and resolve technical challenges. - Excellent communication and collaboration skills to work effectively in a team-oriented environment. - Strong attention to detail and a passion for delivering high-quality software solutions. - Prior experience in the digital advertising industry or related domains is a plus. Benefits Include: - Competitive salary - Early-stage stock options - Open PTO - 401k match - Company paid medical, dental, vision, and life insurance - Regular company lunches and happy hours - Gym membership reimbursement - Cell phone reimbursement To apply to our open positions, please email your resume, cover letter, and the name of the position you are applying for to careers@placements.io. We look forward to meeting you! EEO Employer: Placements.io is an equal opportunity employer; all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or any other protected classification. To apply to our open positions, please email your resume, cover letter, and the name of the position you are applying for to careers@placements.io. We look forward to meeting you! EEO Employer: Placements.io is an equal opportunity employer; all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or any other protected classification. Reasonable Accommodation Statement Placements.io complies with federal and state disability laws and makes reasonable accommodations for applicants and employees with disabilities. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please send a request to hr@placements.io. All requests for accommodations are treated discreetly and confidentially, as practical and permitted by law. Compensation: Our salary ranges are based on paying competitively for our size and industry, and are one part of many compensation, benefits and other reward opportunities we provide. The expected salary range for this role in the selected city: Seattle, WA - USD $130,000 - $170,000 The base salary offered to a candidate may be influenced by various factors, including but not limited to relevant experience, skills, qualifications, education, work location, and other business and organizational needs. ## About Placements.io ## Core Business - **Primary industry**: Digital advertising infrastructure, ad sales and marketing technology - **Target customers**: B2B – ad sellers (broadcasters, ecommerce players, retail media networks, content publishers) and ad buyers (brands, agencies) - **Mission**: “Making advertising efficient, transparent and profitable” and “make the internet a better place for everyone” ## Products & Services - **MarketerOS**: SaaS platform for ad buyers to plan, activate, and manage omnichannel campaigns with end-to-end visibility, automated workflows, governance, and billing. - **AdSalesOS**: SaaS platform for ad sellers to unify ad operations, sales, and finance, optimize RFPs, boost yield, and scale revenue without scaling headcount. - **Invoice Management**: Streamlined billing and invoicing integrated into both platforms. ## Market Standing - **Valuation / Market Cap**: Not publicly disclosed - **Key Metric**: Over $13 billion of media ad revenue handled in 2024; relied on by 6 of the Fortune 20 - **Notable Investors / Partners**: Vulcan Capital (the late Paul Allen’s firm) and Revel Partners - **Growth Signals**: Global expansion with offices across North America, Europe, and Asia; named a “Best Place to Work” award winner; featured in Forbes, Geekwire, TechCrunch, and Yahoo! Finance ## Competitive Advantages - Agentic AI‑powered operating system that unifies both buy‑side and sell‑side workflows on a single platform - Deep integrations with the ad ecosystem, eliminating manual processes and data silos - Proven scale handling billions in ad revenue for large enterprise customers ## Strategic Focus - Continuing to build AI‑powered functionality to automate campaign planning, activation, and reconciliation - Expanding global footprint and deepening integrations with ad tech partners - Reducing reliance on intermediaries that trade in consumer data, promoting a more transparent internet ## Why Work Here - **Work model**: Hybrid – employees choose which days they come in; typical on‑site expectation is 3 days per week - **Benefits**: 100% covered medical, dental, and vision; open PTO; flexible hours; paid parental leave; commuter benefits; lunch paid in‑office; happy hours and team outings; annual company vacation (subject to performance) - **Compensation**: Employee stock options, 401k with 3% matching from day one, performance bonuses - **Learning & Development**: 100% reimbursement for career‑related education; job training and conferences - **Culture**: Fast‑paced, collaborative environment with colleagues from Salesforce, Microsoft, Google, Amazon, and IBM; diversity recruitment program; quarterly engagement surveys; employee awards - **Offices**: New York City (HQ), Seattle, Denver, London, Singapore, Taipei ## Sources 1. [placements.io – Homepage](https://www.placements.io/) 2. [placements.io – About](https://www.placements.io/about) 3. [placements.io – Careers](https://www.placements.io/careers) 4. [Built In – Placements.io Company Profile](https://builtin.com/company/placementsio) 5. [Greenhouse – Placements.io Job Board](http://job-boards.greenhouse.io/placementsio) ## Other roles at Placements.io - [Director, Agency and Advertiser Partnerships](https://feeny.ai/job/director-agency-and-advertiser-partnerships-placements-io-new-york-new-york-t60e7x1p1hka) — New York New York, United States - [Senior Fullstack Engineer](https://feeny.ai/job/senior-fullstack-engineer-placements-io-taipei-p1dq0fh5m58n) — Taipei, Taiwan - [Enterprise Account Manager](https://feeny.ai/job/enterprise-account-manager-placements-io-sydney-y0w2vyaxgx0e) — Sydney, Australia - [Senior Enterprise Sales Engineer](https://feeny.ai/job/senior-enterprise-sales-engineer-placements-io-sydney-d6x6cd2g5416) — Sydney, Australia - [Senior QA Engineer](https://feeny.ai/job/senior-qa-engineer-placements-io-taipei-6t2gc18ksvdf) — Taipei, Taiwan - [Solutions Consultant](https://feeny.ai/job/solutions-consultant-placements-io-denver-colorado-a1n1b6tmyktr) — Denver Colorado, United States - [Solutions Consultant](https://feeny.ai/job/solutions-consultant-placements-io-seattle-washington-en7ya6t3ryhd) — Seattle Washington, United States - [Solutions Consultant](https://feeny.ai/job/solutions-consultant-placements-io-new-york-new-york-6j1rx9d2y2hm) — New York New York, United States - [Senior Fullstack Engineer](https://feeny.ai/job/senior-fullstack-engineer-dice-remote-8jrv3t47pfa2) - [Senior Fullstack Engineer](https://feeny.ai/job/senior-fullstack-engineer-simspace-corporation-costa-rica-11ye95n7y1hg) — Costa Rica