Programmatic Supply Specialist (m / f / d)

Programmatic Supply Specialist – Remote EMEA

Hello, I am Tomás, Global Supply and Partnerships Lead at Kayzen, and I am looking for a Programmatic Supply Specialist to strengthen our Supply Partnerships team. In this role, you will directly manage supply partners, drive performance improvements across key accounts, and ensure the highest quality of inventory on our platform.

This is a hands‑on, high‑impact role at the intersection of partner management, data analysis, and technical troubleshooting.

Kayzen is a mobile demand‑side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through our self‑serve and managed service options, built on the three core pillars of performance, transparency, and control.

Team

The Supply Team lies at the intersection of demand and supply within Kayzen. We are responsible for the accessibility, efficiency, quality, and development of ad inventory that our customers access through the Kayzen DSP. The team works closely with other teams such as Product and Marketing.

Responsibilities

• Own and manage relationships with key ad exchanges and publishers
• Run regular check‑ins and Quarterly Business Reviews with key partners
• Monitor partner performance and identify and execute growth opportunities
• Evaluate technical integrations and drive improvements where needed
• Track and resolve media cost discrepancies and other troubleshooting in collaboration with internal teams
• Act as the bridge between Supply and commercial teams
• Support a customer‑ and revenue‑centric supply strategy
• Monitor supply performance across top strategic accounts
• Translate customer account‑level insights into actionable items for exchanges
• Identify and unlock performance opportunities across supply partners
• Partner closely with the Product Support team to resolve supply‑related issues
• Investigate and troubleshoot campaign delivery and performance challenges
• Analyze inventory data to foster data‑driven decisions
• Identify quality issues and optimization opportunities within the supply chain

Requirements

• 2+ years of experience in programmatic advertising, preferably managing supply at a DSP or SSP
• Background in partner management, account management, or customer‑facing roles
• Strong understanding of the programmatic ecosystem (SSPs, DSPs, publishers, auction mechanics)
• Familiarity with key performance metrics (CPM, CTR, CPI, ROAS, win rate, etc.)
• Ability to analyze large datasets and derive actionable insights
• Experience working with SQL, Excel, and data‑analysis tools
• Comfortable working with large amounts of raw data and campaign performance metrics
• Capable of working independently and collaboratively
• Strong work ethics and a problem‑solving mindset
• Exceptional attention to detail

What do we offer?

• Exceptional career growth and learning opportunities
• A unique chance to work with industry experts and entrepreneurs shaping the Adtech market
• Direct, day‑to‑day work experience with management
• A multinational, driven team located across Germany, India, Argentina, Israel, Ukraine, Turkey, the UK, and more countries
• Flexible work‑from‑home arrangement
• 500‑dollar home‑office setup budget
• 1,000‑dollar annual learning and development budget