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Software Engineer

BoostDraft · Remote · Japan · Remote

Posted Jul 29, 2026

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※後半に日本語の説明があります C# software engineering position in a highly-growing startup, developing a document IDE for non-engineers . About BoostDraft BoostDraft is a software engineering company that develops IDE for documents. It was founded by MIT and Stanford grad students, developing an assisted document editor for documents. It is a new document editor that employs error checking, reference checking and auto-completion using both rule-based approach and NLP, like what coding editors/IDE (e.g. VSCode, Pycharm) do. Please find more information here: https://speakerdeck.com/boostdraft Background & Traction We are currently focusing on Lawyers who draft relatively standardized but long documents, such as contracts. With only four years after our product launch, we already have more than 10,000 active paid users. We have several long-term, large-scale contracts with famed enterprises and law firms. As a result, we achieved significant success, including profitability and exponential growth, all without relying on external funding for nearly four years. BoostDraft was accepted by prestigious accelerator program, MassChallenge (Top 30 US accelerator), StartX (Stanford Accelerator, 7% acceptance rate), MIT Sandbox (Accelerator of Massachusetts Institute of Technology) Join our Engineering-First Team At BoostDraft, we prioritize quality over quantity. As an engineering-first company. Around 50-60% of our team members are software engineers with extensive experiences from companies such as Microsoft, IBM, HTC, Yahoo!, and R&D in NTT. Technical Challenges We Solve Performance improvement using both partial analysis and full analysis Synchronization between user input and on-memory text Cache efficiency to increase highlight performance t during/after user input Security preserving Natural Language Processing, such as Federated Learning What’s your challenge As a C# Software Engineer at BoostDraft, you will be tackling challenging technical problems, including: Design and implement classes and methods for IDE for documents Refactor existing code for better extensibility Interview with our users to understand their daily work and pain points Propose both innovative ideas and feasible ideas to achieve unprecedented features 【Languages】 C#,(partially)Rust, Python 【FW】.NET Framework 4.8, .NET 8.0 【DB】 SQLite, Amazon RDS 【Log Analysis】 AWS CloudWatch, Elasticsearch + Kibana, BigQuery 【CI/CD】 GitHub, GitHub Actions(Self-hosted runner (Windows)), Azure DevOps ---------- Ensuring a Fair and Secure Recruitment Process: In recent years, there has been a growing number of applications submitted with fake or AI-generated profiles, including fabricated work history or impersonated identities. At BoostDraft, we are committed to providing a fair and secure hiring process for all candidates and have implemented the following measures: During online interviews, the use of both camera and microphone is mandatory . If we…