Ariel Salce
@arielsalce
Senior software engineer specializing in resilient backend systems and API design for fintech.
What I'm looking for
I’m a Senior Software Engineer with 7+ years building production backend systems in Ruby on Rails, Elixir, and Golang, with front-end experience in React, TypeScript, and JavaScript. I focus on designing and maintaining REST APIs, microservices, and PostgreSQL-backed systems in high-reliability fintech environments, with a strong emphasis on performance, reliability, and security.
Recently, I designed and hardened a Ruby-based AI coding agent using Anthropic’s Claude API—applying the same rigor I bring to production (code review, security fixes, and automated testing) to agentic tooling. I also led technical design reviews, established code standards, and built an org-wide standardized integration gateway consolidating fragmented third-party integrations across 15+ microservices, while reducing API latency through query optimization, indexing, and caching.
Experience
Work history, roles, and key accomplishments
Product Manager
Forward Financing
Jan 2026 - Jun 2026 (5 months)
Owned the product roadmap for an ML-powered credit decision engine and worked with engineering and data science teams to translate underwriting requirements into technical specifications. Supported automated decision systems, feature flagging, and model evaluation workflows.
Senior Software Engineer
Forward Financing
Feb 2024 - Jan 2026 (1 year 11 months)
Designed and built a centralized integration gateway in Ruby on Rails and Go that consolidated third-party integrations across 15+ microservices into an org-wide standard. Delivered REST APIs backed by PostgreSQL and Redis, led technical design reviews, and improved performance by reducing API latency via query optimization, indexing, and caching.
Software Engineer
Forward Financing
Jan 2022 - Feb 2024 (2 years 1 month)
Developed and maintained Ruby on Rails and Elixir/Phoenix services for lending and payment workflows. Expanded test coverage, designed and consumed RESTful APIs with complex business logic and compliance requirements, and contributed to service architecture and technical roadmap planning.
Associate Software Engineer
Forward Financing
Jul 2021 - Jan 2022 (6 months)
Built and shipped features across Ruby on Rails backend services in agile sprint cycles. Developed front-end features with React, TypeScript, and JavaScript, contributed to TypeScript contract/type definitions for authentication integrations, and supported production incident response through bug triage, hotfixes, and post-mortems.
Automation Engineer
Forward Financing
Sep 2017 - Jul 2021 (3 years 10 months)
Designed and implemented automated testing frameworks in Ruby to reduce manual QA cycles by about 40% and improve release confidence. Scripted deployment and data pipeline automation using Ruby and Bash, and integrated automation tooling into the engineering team’s core development workflow.
Education
Degrees, certifications, and relevant coursework
Pontificia Universidad Católica Madre y Maestra (PUCMM)
Bachelor of Science in Computer Science, Computer Science
Earned a Bachelor of Science in Computer Science at Pontificia Universidad Católica Madre y Maestra (PUCMM), completed in 2017.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Portfolio
github.com/arielsalcepk/variantlabJob categories
Skills
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