Media Buyer

FX Replay; México; On-site; MXN 1,016,000 - 1,216,000; Full time

Job summary

FX Replay is seeking a senior Media Buyer to own paid acquisition and creative strategy. You will manage Google Ads and Meta Ads, connect ad performance to real business outcomes, and drive incremental growth for a growing B2C SaaS platform used by traders.

You will build a testing roadmap, allocate budgets across channels based on CAC and LTV, and lead measurement and incrementality tests. This role requires hands-on execution, strategic thinking, and strong English communication in a

Qualifications

• 5+ years of hands-on paid acquisition, media buying, or performance marketing experience with deep Google Ads expertise and solid Meta Ads experience.
• Proven experience managing and scaling paid media budgets of $100K+ per month.
• Experience running paid acquisition under financial-services or other restricted-category advertising policies.
• Ability to connect advertising-platform performance to actual customer and revenue outcomes using GA4, GTM, and BigQuery, SQL, or comparable data environments.
• Experience designing and interpreting incrementality tests (holdouts, geo experiments, lift studies).
• Strong understanding of subscription economics, CAC, LTV, payback, and how acquisition translates into revenue.

Responsibilities

• Run paid acquisition hands-on daily, with Google Ads as the core channel, owning structure, bidding, testing, optimization, and scaling.
• Maintain ~80% focus on ICP acquisition quality and cost, with 20% on testing adjacent audiences and emerging channels.
• Allocate and scale budgets based on CAC, LTV, payback, and incremental impact, not ROAS alone.
• Design and interpret incrementality tests to identify spend driving new customers.
• Turn performance data into creative briefs, hooks, and scripts; direct production with designers and video creators.
• Provide weekly reports detailing what happened, why, learning, and next steps.

Skills

Paid media

Google Ads

Meta Ads

GA4

GTM

BigQuery

SQL

Incrementality tests

Creative strategy

English

Tools

GA4

GTM

BigQuery

SQL

AI tools

Job description

Media Buyer (Measurement & Creative Strategy)

About FX Replay

FX Replay is a B2C SaaS platform built for traders who want to improve through deliberate practice. More than 1 million traders use FX Replay to replay historical markets, test strategies against real price data, and review their trading decisions.

We're looking for a Media Buyer to own and scale paid acquisition, with Google Ads and Meta Ads as our core channels.

Your primary focus will be acquiring our defined ICP at the highest quality and lowest sustainable cost. We expect approximately 80% of your effort to go toward improving acquisition within this core audience, and 20% toward testing adjacent audiences, regions, and emerging opportunities such as CTV, OpenAI Ads, and other new channels.

This is not a role for someone who simply launches campaigns and optimizes toward what advertising platforms report. We are looking for a hands‑on operator who can connect paid media performance to actual company outcomes, determine whether advertising is creating incremental growth, make informed budget allocation decisions, and turn performance insights into better creative.

You will operate at the intersection of paid acquisition, measurement, experimentation, creative strategy, and business performance.

What You'll Own

Paid Acquisition

• Own paid acquisition strategy and hands‑on execution across Google Ads and Meta Ads, from campaign structure and bidding to testing, optimization, and scaling.
• Focus approximately 80% of your effort on acquiring our defined ICP at the highest quality and lowest sustainable cost, and 20% on testing adjacent audiences, regions, and emerging opportunities.
• Build and maintain a structured testing roadmap across audiences, offers, landing pages, creatives, bidding approaches, and campaign structures.
• Allocate and scale budgets based on CAC, LTV, payback, customer quality, and incremental business impact — not platform‑reported ROAS alone.
• Evaluate and test emerging acquisition channels such as CTV, OpenAI Ads, and other platforms when the opportunity and economics justify it.

Measurement & Incrementality

• Connect advertising‑platform performance with GA4, Google Tag Manager, BigQuery, and company‑level customer and revenue data to understand actual business impact.
• Measure acquisition beyond platform‑reported CPA or ROAS, focusing on customer quality, paid conversion, revenue, CAC, LTV, payback, and incremental contribution.
• Identify and investigate discrepancies between advertising platforms, analytics, attribution systems, and internal company data.
• Design and interpret incrementality tests, including holdouts, geo experiments, and lift studies, to determine which spend is actually driving new customers.
• Challenge attribution and budget decisions when platform‑reported performance does not align with actual company performance.

Creative Strategy & Performance

• Own the creative performance loop from campaign data to the next creative test.
• Identify winning and declining hooks, angles, messages, formats, offers, and audience insights from performance data.
• Turn those insights into clear creative briefs, concepts, hooks, ad copy, and video scripts.
• Direct and prioritize creative production with designers and video creators based on campaign needs, testing priorities, and performance.
• Continuously test and iterate creative concepts, using performance data and AI tools to accelerate research, ideation, scripting, and learning.

How You'll Think About Performance

We expect you to look beyond advertising‑platform metrics and understand the full acquisition system.

You should be comfortable evaluating performance through the metrics that matter most to customer quality and business impact:

• Activation quality
• Paid conversion
• Revenue / MRR
• LTV and payback
• Incremental CAC

If Meta or Google reports strong performance while company revenue or MRR is moving in the opposite direction, we expect you to investigate why — not simply trust the platform attribution.

Responsibilities

• Run paid acquisition hands‑on every day, with Google Ads as the core channel, owning campaign structure, bidding, testing, optimization, and scaling.
• Focus approximately 80% of your effort on acquiring our defined ICP at the highest quality and lowest sustainable cost, and 20% on testing adjacent audiences, regions, and emerging channels.
• Allocate budget across channels and regions based on CAC, LTV, payback, customer quality, and incremental impact — not platform‑reported ROAS alone.
• Design and interpret incrementality tests, including holdouts, geo experiments, and lift studies, to determine which spend is actually driving new customers.
• Turn performance data into the next creative briefs, hooks, and scripts, directing designers and video creators on what to produce and test next.
• Report weekly on what happened, why it happened, what was learned, and what happens next, documenting experiments so successful approaches can be repeated and scaled.

Qualifications

• 5+ years of hands‑on paid acquisition, media buying, or performance marketing experience, with deep Google Ads expertise and solid Meta Ads experience.
• Proven experience managing and scaling paid media budgets of $100K+ per month.
• Experience running paid acquisition under financial‑services or other restricted‑category advertising policies, including navigating compliance requirements and account restrictions.
• Ability to connect advertising‑platform performance to actual customer and revenue outcomes using GA4, GTM, and BigQuery, SQL, or comparable data environments.
• Practical experience designing and interpreting incrementality tests, including holdouts, geo experiments, lift studies, or comparable methodologies.
• Strong understanding of subscription economics, including CAC, cohort LTV, payback, and how acquisition performance translates into downstream revenue.
• Strong creative judgment with experience turning performance insights into paid‑media concepts, hooks, briefs, ad copy, and video scripts.
• Experience in B2C SaaS, subscriptions, digital products, apps, fintech, trading, or comparable consumer acquisition funnels.
• Strong written and spoken English, with the ability to work independently in a fast‑moving startup and turn ambiguous growth problems into structured tests and actions.

Tools & Platforms

You should be comfortable working across a modern paid acquisition and measurement stack, including:

• Google Ads and Meta Ads
• GA4 and Google Tag Manager (GTM)
• BigQuery, SQL, or comparable data environments
• Incrementality, attribution, and measurement tools
• AI tools for analysis, research, creative development, and workflow acceleration

Experience with CTV, OpenAI Ads, or other emerging acquisition channels is valued but not required. You should be comfortable learning and testing new platforms quickly.

Nice to Have

• Experience in trading, investing, fintech, or adjacent financial products.
• Experience with Marketing Mix Modeling (MMM) or similar cross‑channel measurement approaches.
• Experience with landing page experimentation and conversion rate optimization (CRO).
• Experience launching and measuring CTV or other emerging paid acquisition channels.

What Strong Performance Looks Like

A strong Media Buyer at FX Replay does more than make advertising dashboards look good.

You consistently acquire our ICP at high quality and sustainable economics, understand which campaigns and channels are creating incremental customers, and know when platform attribution may be misleading.

You can explain where growth is actually coming from, where the acquisition funnel is breaking down, how budget should be allocated, and what creative should be tested next.

You combine hands‑on execution with strong measurement discipline, creative judgment, and business thinking to scale paid acquisition responsibly.