Sixsides

SixSides builds dedicated engineering teams that integrate with client organizations. Founded in 2017, we focus on long-term partnerships with clear governance and predictable delivery. Our goal is to become true engineering partners, working at your side. We collaborate with companies in the United States and Australia to design and scale digital platforms across: • Fintech – investment platforms, trading systems, compliance-driven solutions. • E-commerce & SaaS – consumer platforms, marketplaces, subscription services. • Product Engineering – backend, frontend, mobile, and platform development. Our delivery model combines senior technical leadership with compact, bilingual teams. A typical squad includes a Lead or Architect supported by 2–5 engineers and QA, covering: • Platform architecture and performance • SDLC discipline and release engineering • QA automation, security, and compliance • Leveraging AI responsibly to improve productivity and quality Highlights from our journey: • Supported an Australian fintech from concept to becoming a leading investment platform, recognized by AFR’s Fast Starters (Top 30) and FT High Growth Companies Asia Pacific. • Partnered with a New York–based AI-driven bookstore to launch and scale its SaaS platform for authors and readers. Our teams emphasize disciplined SDLC practices and responsible use of AI-assisted workflows to improve productivity without sacrificing reliability. Headquartered in Buenos Aires, we operate with strong time-zone alignment for the Americas and Europe, enabling close collaboration without the usual outsourcing gaps. Learn more at sixsides.io