Senior Software Engineer (Fintech Platform)
About The Position
In this role, you will work on the Platform Core team, you will join a high-caliber group responsible for the foundational services and infrastructure that power Félix’s products. You will identify bottlenecks, improve system efficiency, and ensure that our services can support the company’s continued growth while maintaining a high level of availability. This role requires balancing rapid execution with sound engineering principles. You will participate in the development of customer-facing and business-critical features in a fast-paced environment, ensuring that new functionality is delivered without compromising system stability or accumulating unnecessary technical debt. Success in this role requires curiosity, strong technical judgment, and the ability to think beyond individual components to deliver solutions that benefit the organization as a whole. The ideal candidate is someone who enjoys solving complex distributed systems problems, takes ownership of outcomes, and is passionate about building systems that are scalable, reliable, and easy for other teams to build upon.
Requirements
- 5+ years of experience as a Software Engineer, including experience in a fast-paced, dynamic environment.
- Proven track record of building, shipping, and iterating on software applications, particularly in the Fintech domain.
- Solid foundation in algorithms and data structures.
- Experience designing and implementing web services, including REST APIs.
- Familiarity with architectural patterns such as Hexagonal Architecture, Event-Driven Architecture, and practices like A/B Testing, Feature Flags, and Gradual Rollouts.
- Domain Expertise: Experience in building and maintaining payment systems, financial disbursement solutions, or compliance-driven platforms is highly desirable.
- Knowledge of security protocols, compliance standards, and KYC/AML processes.
- A passion for developing products that make a real impact on millions.
- Commitment to continuous learning and staying abreast of emerging technologies.
- Excellent collaboration and prioritization skills in a team-oriented environment.
- Curiosity and/or experience in Fintech is a plus (equivalent competencies will also be considered).
- These are the applicable requisites, although equivalent competencies in any of the above will also be considered.
Responsibilities
- Platform Architecture & Development: Design, build, and optimize foundational microservices and infrastructure that power the company’s products.
- System Resilience: Improve the resilience of the platform by designing systems that gracefully handle failures. Implement monitoring and observability solutions, improve incident response processes, and build mechanisms such as retries, circuit breakers, fallbacks, and automated recovery strategies.
- Scalability & Performance: Identify bottlenecks, improve system efficiency, and ensure services support continued hyper-growth while maintaining high availability.
- Cross-functional Collaboration: Work closely with product, operations, compliance, and other business units to deliver holistic financial solutions.
- Mentorship & Growth: Mentor junior developers and promote best practices across the engineering team.
- Continuous Improvement: Leverage user feedback and system analytics to refine and iterate on platform capabilities.
Benefits
- Health, dental, and vision plans
- 401(k) with employer match
- Continuous learning opportunities
- Unlimited PTO
- Paid parental leave
- Empowering opportunities for growth in a dynamic entrepreneurial environment
Stand Out From the Crowd
Upload your resume and get instant feedback on how well it matches this job.
What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
