Jobs at ARQ

Founding security engineer for Brazil responsible for application security, cloud (AWS/Kubernetes) assessments, detection engineering, incident response, vendor due diligence, and defining AI/agentic workflow guardrails. Lead security roadmap, harden CI/CD and APIs, design detection and alerting across Datadog/CrowdStrike/Cloudflare, and mentor engineers while collaborating with global security team.

Lead and establish ARQ's security function in Brazil across application security, security operations, and GRC. Drive threat modelling, secure code review, API and AI/agentic workflow assessments, SIEM detection and response (Datadog, CrowdStrike, Cloudflare), incident response readiness, cloud security (AWS, Kubernetes), and vendor security assessments.

Founding Security Engineer for ARQ Brazil responsible for application security, detection engineering, incident response, cloud (AWS/Kubernetes) assessments, vendor security reviews, and AI/agentic risk monitoring. Build SIEM detections, maintain alert pipelines, run IR playbooks, and support threat modeling, secure code review, and CI/CD checks.

Design, build, and deploy machine learning models to detect fraud, prevent losses, and monitor risk. Work with Product, Engineering, and Operations to turn large-scale data into production-ready pipelines and model-serving solutions, monitor performance, and continuously improve model accuracy and business impact.

Provide legal and regulatory support for ARQ's Brazil operations covering virtual asset activities, payment institution obligations, and investment advisory compliance. Track regulatory deadlines, prepare filings and responses, assist with authorization and regulatory reporting, handle consumer complaints and authority requests, monitor legal changes, support stakeholders and draft memos, opinions, and internal documents. Work closely with compliance, product, technical, and business teams to embed legal requirements into operations.

Design, develop, and maintain scalable backend systems for fintech products. Build REST APIs and microservices, improve existing systems (payments, treasury, transactions, crypto), and use Java, Spring Boot, and Postgres. Follow TDD, DDD, and CI/CD practices to deliver maintainable, high-performance services.

Design, develop, and maintain scalable backend systems (greenfield and existing). Build REST APIs and microservices for card payments, treasury, transaction booking, and crypto liquidity. Work primarily with Java 25, Spring Boot, and Postgres, applying TDD, DDD, and CI/CD for clean, maintainable code and fast delivery.

Design, develop, and maintain scalable, secure backend systems and microservices for payments, treasury, transactions booking and crypto liquidity. Build REST APIs using Java and Spring Boot, apply TDD/DDD, and support CI/CD for high-performance fintech products.

Design, develop, and maintain scalable, secure backend systems and microservices. Build REST APIs, improve existing systems (payments, treasury, transactions, crypto liquidity), and deliver high-quality code using Spring Boot, Java, Postgres, TDD, DDD, and CI/CD practices. Collaborate across teams in a hybrid office environment.

Design, develop, and maintain scalable backend systems (greenfield and existing). Build REST APIs and microservices for payments, treasury, transactions, and crypto. Follow clean code practices with TDD, DDD, CI/CD, and collaborate across teams to deliver high-performance fintech services.

Design, develop, and maintain scalable backend systems and microservices (payments, treasury, transactions, crypto liquidity). Build REST APIs, improve existing systems, and apply clean code practices with TDD, DDD, and CI/CD.

Design, develop, and maintain scalable backend systems and microservices for fintech products. Build REST APIs, support greenfield projects and improve existing systems (card payments, treasury, transactions, crypto liquidity). Use Java and Spring Boot with Postgres, practicing TDD, DDD, and CI/CD to deliver maintainable, high-performance services.

Design, develop, and maintain scalable backend systems and microservices (payments, treasury, transactions, crypto). Build REST APIs, use Java and Postgres, apply Spring Boot, TDD, DDD, and CI/CD to deliver maintainable, high-performance services.

The Talent Acquisition Specialist will lead hiring efforts, build a talent team, and implement scalable recruitment programs to drive growth at ARQ. Responsibilities include sourcing candidates, managing hiring KPIs, and ensuring an exceptional candidate experience.

Lead growth-focused data science initiatives, owning LTV prediction models across countries and channels. Translate business questions into models, analyze large customer and marketing datasets, evaluate acquisition quality, monitor and productionise models with engineering partners, and drive data-informed growth and retention decisions.

The Product Owner will own ARQ's operating system, leading the strategy and execution of internal tools and KPI platforms, collaborating with various teams, and driving product adoption based on internal feedback.

As a Product Owner at ARQ, you'll lead the strategy and execution of the company's internal operating system, focusing on KPI platforms and employee directories while collaborating with cross-functional teams.

The Product Owner will lead the vision, roadmap, and delivery of products, focusing on user needs and data-driven decisions while managing multiple stakeholders.

Support Mexico compliance program by investigating KYC/AML alerts using official databases and KYC tools, prepare UIF regulatory notices (ROR/ROI/ROIP) via SPPLD, monitor transactions and sanctions, improve controls, and liaise with regulators, auditors, and banking partners.

The General Manager will oversee ARQ's regulated entity in Colombia, ensuring compliance, managing operations, and securing operating licenses. Responsibilities include regulatory interactions, risk management, auditing, and building operational structures for sustainable growth.