Engineering
March 16, 2026
When Webhooks Retry, Users Shouldn’t Notice: Idempotency Locks with Redis
Posted by SoLo Engineering Team This article explains how we use a short-lived Redis idempotency lock to protect external vendor transfer webhooks from race conditions, duplicate retries, and out-of-order delivery. By using an atomic SetNx cache key with a bounded TTL, we ensure each transfer status is processed exactly once within a retry window, preventing duplicate database updates, events, and side effects while keeping the system resilient and recoverable. Read More
February 2, 2026
Social Sign-In For Faster, Safer Access
Posted by SoLo Engineering Team How SoLo Funds integrated Google and Apple social sign in so members can get back to the same account in fewer taps, and how any team can do it without weakening account integrity or risk controls. Read More
October 21, 2025
Breaking the “Lethal Trifecta” for LLM Agents
Posted by Keroshan Pillay When a language model can see private data, read untrusted content, and send information to the outside world at the same time, you’ve assembled the “lethal trifecta.” This article shows how to defuse it in real products—especially in finance—by making safety an architectural property, not a prompt. Read More
September 30, 2025
Building an AI KPI Agent: From Raw Signals to Weekly Strategy
Posted by SoLo Engineering Team We built a lightweight AI agent that turns weekly KPIs and community feedback into a clear, actionable story — delivered straight to Slack. By combining Snowflake data with community conversations, the agent synthesizes both the what and the why behind our metrics. The result: meetings shift from recap to decision, context is shared across teams, and we achieve enterprise-grade insight at startup-scale cost. All for just a few dollars a month. Read More
September 10, 2025
From Overspend to Optimized: Transforming Infrastructure Costs
Posted by SoLo Engineering Team From Overspend to Optimized: Transforming Infrastructure Costs Read MoreLoad More
With SoLo, you’re always an individual, but you never go it alone.
With SoLo, you’re always an individual, but you never go it alone.