Engineers' blog

BackgroundHi,I'm Felix from the UnitedForce. We're a team has 4 members who come from various projects, and we collaborate as a team in the AI Hackathon team held by Moneyforward Vietnam. We want to challenge themself to build somethings truly valuable in a short time with AI.This change not only motivated us but also a change for us to review the knowledge about some AI tools.User focus is one of the important MVVC of Moneyforward, that why understanding user feedback is crucial for continuous improvement and customer satisfaction. However, analyzing vast amounts of raw text feedback can be daunting. Traditional methods often fall short, leading to missed insights and delayed responses. Ent

IntroductionHi, I’m Hugo — a Software Engineer on the Tax Adjustment team. In this post, I’ll show you how to generate polished PDFs in React with React PDF Renderer, sharing practical patterns and tips from my day-to-day work.In modern web applications, generating professional PDF documents is a common requirement—think invoices, reports, certificates, contracts, and more. React PDF Renderer brings the familiar React component model to PDF generation, making it easy to design documents using JSX, styles, and a declarative approach.  Why React PDF Renderer?Before building, here’s why React PDF Renderer is a great choice:1. React-like APIUses familiar components and JSX &n

1. IntroductionThe realm of Artificial Intelligence is constantly evolving, presenting new challenges and opportunities for innovation. At Money Forward, we're always eager to push the boundaries of what's possible, and the recent AI Mini Challenge presented a fantastic opportunity to do just that. This internal competition challenged teams to explore and implement AI solutions to real-world problems. It was an intensive yet incredibly rewarding experience, and we're excited to share our journey and the technical insights we gained.We are a team of engineers at Money Forward who came together for the AI Mini Challenge, bringing a strong mix of backend and frontend expertise. As backend engin

1. IntroductionHey everyone! I'm Dante, and I'm part of the Bante team, a group of five enthusiastic developers – Barry, Jett, Andre, Chein, and myself. We are all Backend Developers.2. SituationBefore this challenge, most of us were primarily AI users. We'd interact with AI tools and marvel at their capabilities, but the inner workings remained a bit of a black box. This sparked a deep curiosity: we wanted to peel back the layers and understand everything about AI, from Large Language Models (LLMs) and embeddings to indexing, agents, and post-processing. The mini-challenge presented the perfect opportunity to learn by building, pushing us to create a practical AI tool from the ground up.O

Hi everyone! I'm Hugon, a Golang Engineer working on the Lease Accounting project. I'm excited to share the story of how my team and I tackled a company-wide AI mini-challenge and won the Evolution prize! Our journey wasn't about building a complex AI from scratch, but rather about solving a real-world problem for our team.Why We Joined the ChallengeMy main motivation for participating was simple: I wanted to find a way to use AI to boost productivity for both developers and Product Owners on my team. The mini-challenge gave me the perfect opportunity to explore this idea.Initially, we thought we'd build a RAG (Retrieval-Augmented Generation) system and an AI agent completely from the ground

The MFV AI Mini Challenge, which concluded on June 27th, marked not an end, but a significant beginning in MFV's journey towards integrating Artificial Intelligence into its core operations.

Hey everyone, Hugo here!As a developer at Money Forward, I'm always looking for ways to optimize my workflow and become more efficient. Recently, I stumbled upon Cursor AI, and let me tell you, it’s been a total game-changer. I wanted to share my experience and dive into the technical aspects of how it's impacted my daily work.Before Cursor AI, I often felt bogged down. Debugging those gnarly, edge-case bugs? Hours. Setting up a boilerplate for new features? Tedious. Keeping up with the latest best practices and framework updates? Exhausting. I’d find myself constantly switching between my IDE, documentation, and Stack Overflow, trying to piece everything together. It felt like my produc

This article is targeted at web developers new to HTTP/2 design in overall, and mainly discusses the way HTTP/2 addressed the HOL blocking problem.

1. Isolate Tests to Avoid Shared StateFlaky tests often arise when tests rely on shared state, meaning the state of one test can affect the outcome of another. This can happen when objects or variables are not reset between tests.Solution:Use let and let! for lazy and eager loading to ensure fresh objects are created for each test.Use before(:each) and after(:each) to reset shared state and prepare the environment for each test.describe User do let(:user) { create(:user) } it 'is valid with a name and email' do expect(user).to be_valid end endAvoid using global variables or objects that persist between tests. Each test should be independent of others to avoid flaky behavior.2. Ens