API Solutions Engineer / Pre-Sales Engineer

Whistle & Whistle

. Lead discovery calls with technical and non-technical stakeholders .

Posted 9/18/2026full-timeRemote • BrazilMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in client-facing technical roles, with a strong focus on API integration, low-code tools, and consultative communication. Proficient in managing client requirements and driving successful integrations across diverse markets.

Highest-signal resume keywords

API IntegrationJavaScript ProgrammingPython ProgrammingConsultative CommunicationCRM Platforms

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

APIRESTPostmanCURLWebhooksScriptingLow-Code ToolsPrompt EngineeringIntegrationsTechnical Briefs

Soft Skills

Consultative CommunicationAutonomous Pipeline Management

Tools & Technologies

ZapierMakeStitchClaudeGeminiChatGPTHubSpotSalesforce

Industry Keywords

Technical Client-Facing RoleSolutions EngineerIntegration EngineerPre-Sales EngineerGlobal MarketsBrazil

Tech Stack

Tools & technologies

JavaScriptPython

About the role

Key responsibilities & impact

Lead discovery calls with technical and non-technical stakeholders
Map client architecture
Run proof-of-concept integrations from initial scoping through final sign-off
Support clients building on the platform API
Inspect documentation and test API endpoints
Eliminate technical blockers across CRMs, delivery systems, and automations
Use low-code tools and AI assistants such as Claude, Gemini, and ChatGPT to create lightweight demos and prototype workflows
Translate complex client requirements into clear technical briefs for Product and Engineering teams
Drive integrations and help close deals across global markets, with a focus on Brazil

Requirements

What you’ll need

3+ years in a technical client-facing role, such as Solutions Engineer, Integration Engineer, or Pre-Sales Engineer, or experience as a Software Developer transitioning to a client-facing position
Hands-on experience with APIs, including REST, Postman/cURL, and Webhooks
Basic scripting/programming skills in JavaScript and Python
Familiarity with AI tools, prompt engineering, and low-code integration platforms such as Zapier, Make, and Stitch
Exposure to CRM platforms such as HubSpot or Salesforce
Native/fluent Portuguese
Business-fluent written and spoken English
Strong consultative communication skills
Ability to manage an individual pipeline autonomously in a remote setup