Staff Software Engineer (Fintech Office)

Félix; Arkansas; Hybrid; USD 120,000 - 200,000; Full time

Job summary

Félix is seeking a Staff Software Engineer to lead design and delivery of innovative financial systems. This role involves architecting scalable solutions and mentoring engineers, while focusing on cross-functional projects that drive growth in the fintech space. Join our dynamic team to redefine cross-border payments and empower the Latino community in the US.

Benefits

Competitive salary

Initial stock options grant

Annual performance bonus

Health, dental, and vision plans

Unlimited PTO

Paid parental leave

Qualifications

• 8+ years of professional software engineering experience.
• Expertise in Python, SQL, with a solid understanding of transaction integrity and concurrency.
• Experience operating distributed systems on cloud platforms.

Responsibilities

• Architect & build scalable micro-services and data pipelines.
• Drive special projects like automated global FX inventory system and cross-border settlement rails.
• Collaborate with different squads to deliver shared infrastructure.

Skills

Python

SQL

Data Modelling

Architectural Vision

Event-driven Architecture

Hexagonal Architecture

Education

Bachelor's degree in Computer Science or related field

Tools

GCP

Kubernetes

Terraform

Job description

Staff Software Engineer (Fintech Office)

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Staff Software Engineer (Fintech Office)

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About Us

Félix is a chat-based platform that enables Latinos in the US to send money home, pioneering remittance services via WhatsApp. At the core of our operations is our robust Fintech Platform, built on three specialized squads: Payments, Disbursements, and GRC (Governance, Risk, and Compliance). By integrating Blockchain and Artificial Intelligence, we are redefining cross-border payments and ensuring secure, efficient, and compliant financial transactions.

About Us

Félix is a chat-based platform that enables Latinos in the US to send money home, pioneering remittance services via WhatsApp. At the core of our operations is our robust Fintech Platform, built on three specialized squads: Payments, Disbursements, and GRC (Governance, Risk, and Compliance). By integrating Blockchain and Artificial Intelligence, we are redefining cross-border payments and ensuring secure, efficient, and compliant financial transactions.

By joining Felix you will be part of the most innovative company in the cross-border payment industry. We recently received investment from top VCs from Silicon Valley, Europe, and Latam, as well as we won Blockchain and AI innovation and application awards at the Wharton Business School. In 2024, Félix was one of the 12 companies selected as “Endeavour Entrepreneur” by its global network, and also a recipient of the CrossTech Fintech Startups Award. You will be joining the journey to build a financial platform and become a companion to the Latino community in the United States!

We're obsessed with our customers, and we're building a product that truly empowers them. We are a team of extremely talented high performers, loyal to each other, and committed to providing a magical experience to all our users. We're all owners, driven by a shared vision to create sustainable value. We move with urgency and focus, always striving for excellence and exceeding expectations.

Introducing the Fintech Office

The Fintech Office is a specialized engineering team that reports directly to the Head of Engineering. While the Payments, Disbursements, and GRC squads keep the day‑to‑day platform running, the Fintech Office focuses on high‑impact, cross‑functional projects that unlock the next wave of growth for Félix. This team’s mission is to enable Félix’s financial infrastructure by optimizing cross‑functional systems and managing financial resources to drive operational excellence and sustainable growth.

About The Role

As Staff Software Engineer, you will be the technical anchor for the team, leading the design and delivery of green‑field initiatives that touch every corner of Félix’s financial stack. You will turn ambiguous business problems into resilient, scalable systems that directly influence strategic decisions and unlock new revenue streams.

This is a hands‑on role for an engineer who loves diving deep into complex financial domains, setting architectural vision, and mentoring others to raise the bar.

Responsibilities

• Architect & Build scalable micro‑services and data pipelines that advance the Fintech Office mission.
• Drive Special Projects – e.g., automated global FX inventory system, cross‑border settlement rails, cost‑to‑serve analytics platform.
• Ensure Financial Accuracy by designing ledger‑grade data models and reconciliation processes.
• Optimise Capital through systems that model liquidity, risk, fees, and vendor pricing.
• Collaborate Across Squads (Payments, Disbursements, GRC) to deliver shared infrastructure and unblock product launches.
• Own Quality & Reliability – establish SLIs/SLOs, observability, on‑call rotations, and incident reviews.
• Mentor & Uplevel engineers, championing best practices in design, testing, deployment, and documentation.
• Report & Influence directly with the Head of Engineering, providing technical insight that shapes the roadmap and investment decisions.
  
  

Requirements

• 8+ years of professional software engineering experience, with at least 3 years in fintech or payments.
• Demonstrated ownership of mission‑critical financial systems (ledgers, reconciliation, treasury, FX, risk).
• Expertise in Python (preferred), Go or Java, plus solid SQL & data‑modelling skills; experience with event‑driven and hexagonal architectures.
• Deep understanding of transaction integrity, idempotency, concurrency control, and double‑entry accounting.
• Proven ability to set architectural vision and influence multiple teams.
• Experience operating distributed systems on GCP, Kubernetes, Terraform (or equivalent cloud‑native stacks).
• A bias for shipping, strong product sense, and a passion for empowering underserved communities.
• These are the applicable requisites, although equivalent competencies in any of the above will also be considered.
  
  

Bonus points

• Experience with blockchain settlement
• Experience with real‑time data streaming (Kafka/PubSub)
• Experience with machine‑learning driven risk models
  
  

What We Offer

• Competitive salary
• Initial stock options grant
• Annual performance bonus
• Health, dental, and vision plans
• Remote work environment, although we have offices in Miami and México City and would love to work in hybrid model if you are up to it.
• Continuous learning opportunities
• Unlimited PTO
• Paid parental leave
• Empowering opportunities for growth in a dynamic entrepreneurial environment
  
  

Equal Opportunity Employer

At Félix, we are committed to providing equal employment opportunities to all qualified employees and applicants without regard to race, religion, nationality, sex, sexual orientation, gender identity, age, or disability. This policy applies to all terms and conditions of employment, including recruitment, hiring, placement, promotion, training, compensation, benefits, and termination.

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Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Engineering and Information Technology

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