Elite squads, AI-augmented delivery, and end-to-end product engineering for fintech companies that need to move fast without breaking compliance, architecture, or team morale.
300 Software is a nearshore engineering firm founded in 2017, built around the top 1% of Brazilian engineering talent — deployed inside fintech teams as a fully embedded, senior-only squad.
We've scaled payments platforms, compliance tools, and core banking systems for clients across the US and Europe. Our engineers actively use and build with AI — from LLM integrations to AI-powered automation and intelligent data pipelines. We don't staff generalists. We deliver outcomes.
We partner with CTOs and engineering leaders at fintech companies to solve the hardest staffing problem in the industry: finding senior engineers who understand both the technology and the regulatory constraints of financial software.
Our squads embed directly into your workflow — your stack, your rituals, your delivery cadence. We don't introduce process debt. We eliminate it.
Since 2017, we've helped companies in payments, lending, asset management, and debt resolution ship faster without compromising reliability or compliance. Increasingly, that means building with AI — automating underwriting workflows, enriching transaction data with ML, and embedding LLMs into customer-facing fintech products.
From embedded squads to full product delivery — across the entire fintech stack.
Everchain — a US fintech in the debt resolution space — needed to scale their engineering function rapidly without taking on the overhead and risk of direct hiring. Since 2020, 300 Software has delivered new product features, maintained their core platform, and embedded seamlessly into their distributed team across time zones.
Read the full case →Every engineer we place is senior. We don't offer capacity — we offer capability. Rigorous selection means your sprint velocity goes up from day one, not after a six-month ramp.
We've built inside payments, lending, compliance, and debt management systems. Our engineers understand data integrity, audit trails, and the cost of getting it wrong in financial software.
Our engineers build with AI, not just alongside it. From LLM-powered document processing and fraud detection models to AI-assisted underwriting — we help fintech teams ship intelligent features that would otherwise require a dedicated ML team.
EverChain has enjoyed a successful partnership with 300 Software since 2020, focused on implementing new software products and ongoing maintenance. The team is highly productive and internal stakeholders have been particularly impressed with their knowledge, efficiency and experience.
Our experience with the system developed by 300 Software has been very good. The system is very reliable and intuitive, greatly assisting in the team's adoption and adaptation. It met our needs as we expected and post-implementation support has been excellent.
They consistently demonstrated technical competence, ownership, and accountability in delivering sprint commitments. As a team, they brought both technical depth and professionalism to the organization, and I would confidently recommend them for environments that value reliability, collaboration, and strong delivery outcomes.
Whether you're scaling a team, unblocking a roadmap, or evaluating a nearshore model — the first call is always free, and we come prepared.