[Hiring] Senior Programmatic Trader @Kayzen

Role Description

Hello👋 I am Willian, Trading and Analytics Lead at Kayzen, and I am now looking for a Senior Programmatic Trader to join our team 🙌

In this role, you will own and grow a portfolio of mobile programmatic campaigns (UA/RT) across verticals including gaming, fintech, betting, and CTV, delivering CPA/ROAS targets while scaling FCT and protecting contribution margin. You'll pair deep trading skills with analytics (SQL must have / Python desirable). What matters most: the analytical instinct to ask the right questions and the resourcefulness to find answers, whether through code or AI tools.

What you’ll do

• Trading excellence
  • Own end-to-end campaign delivery across multiple advertisers; hit KPI targets (CPA, ROAS, retention) and scale when unit economics allow.
  • Develop audience targeting strategies and supply-side optimization (audience, publisher selection, bid shading, dayparting) across ad formats (banner, video, native, CTV) to unlock incremental scale.
  • Build and execute testing roadmaps (optimization models, bids, budgets, frequency, creatives, geos, etc.) to drive incremental lift.
  • Manage pacing, budget allocation, and risk across an account book, proactively mitigating under-delivery.
  • Understand mobile attribution dynamics (postback flows, attribution windows, deterministic vs probabilistic matching, iOS privacy frameworks) and how they shape bidding strategy, audience targeting, and performance interpretation across MMPs.
  • Champion process improvements, author tools/queries, and mentor juniors to raise team throughput.
• Analytics & automation
  • Dive into log-level and aggregated data to diagnose performance; write production-grade SQL (joins, CTEs, window functions) and Python/pandas analyses (or sharp use of AI).
  • Design and interpret tests, translating findings into the Trading Playbook.
  • Leverage LLMs (GPT/Claude) to automate recurring analyses (bid curves, cohort reads, anomaly triage), create data briefs, and draft experiments.
  • Contribute to internal dashboards and trading intelligence tools that accelerate decision-making across the team.
• Cross-functional impact
  • Partner with CSM/Sales on growth plans and QBRs; influence Product with crisp, quantified feedback; collaborate with Supply on inventory quality.
  • Work with DS/DA on model inputs, new testing hypotheses or model improvements, and with Product Support to quickly unblock delivery.

Qualifications

• 3–5 years of programmatic ad buying experience; mobile in-app DSP experience preferred.
• Hands-on with MMPs (AppsFlyer, Adjust, Singular), postback flows, fraud detection, and reporting tools.
• Data-driven decision making; comfortable building and modifying SQL queries (joins, CTEs, window functions a plus). Familiarity with BI tools. Familiarity with AI is a must.
• Nice-to-have: Python/pandas for ad-hoc analyses and light automation; experience is a plus but not required.
• Nice-to-have: CTV/OTT programmatic buying experience.
• Solution orientation and drive to succeed.
• Communication: crisp written analysis and cross-team collaboration. Client-facing confidence preferred.

Requirements

• Competitive compensation with a performance-based component.
• Exceptional career growth. Shape trading playbooks, product, mentor junior traders, and influence the tools and analytical frameworks the team builds around you.
• A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market.
• A high degree of responsibility and independence.
• Direct, day-to-day work with the management.
• A fun, driven, and multinational team located across Germany, India, Argentina, Ukraine, Spain, the UK and many more countries.
• A flexible work-from-home arrangement.
• A 500-dollar home-office setup budget.
• A 1000-dollar annual learning and development budget.