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Debojyoti Singha

@debojyotisingha

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Senior Backend Engineer building production platforms across fintech, banking, and healthtech.

India

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What I'm looking for

I’m looking for a team that values async ownership and end-to-end outcomes. I want to build reliable backend platforms, improve engineering workflows (CI/CD, testing, release automation), and ship practical agentic/AI automation that helps engineers move faster.

I’m a Senior Backend Engineer who builds platforms—not just features—across fintech, banking, and healthtech. I’ve spent 9 years shipping production backend systems, including Elixir/Phoenix services and PostgreSQL-backed APIs, with systems that handle millions of users and ₹50Cr+ in transactions.

I work async, own outcomes end-to-end, and default to action. As a Staff Engineer / Tech Lead and later Head of Engineering, I led 10+ team leads and 30+ engineers, cut deployment time by 30% through CI/CD and release automation, and raised test coverage to 95%. I also built an AI Ticket Studio agentic pipeline that ingests codebases and resolves engineering tickets at 92% accuracy.

Experience

Work history, roles, and key accomplishments

Current

Founder & Engineer

Current

Keplars

Built a developer-first transactional email infrastructure platform with an OAuth-based SMTP layer and real-time delivery logs. Created a visual email automation engine with conditional branching and drip sequences backed by Redis/BullMQ and PostgreSQL.

Next.js BullMQ Redis PostgreSQL Docker Transactional Email Background Queues

Head of Engineering

GitStart (YC19)

Jan 2023 - Jan 2026 (3 years)

Designed and co-built an AI Ticket Studio agentic pipeline that ingests GitHub codebases and generates structured solution outputs for engineering tickets. Improved engineering throughput by auto-enriching tickets with examples and using background orchestration.

OpenAI API Temporal PostgreSQL GitHub Codebase Ingestion Linear Ticket Workflows

Staff Engineer / Tech Lead

GitStart (YC19)

Oct 2021 - Jan 2026 (4 years 3 months)

Led backend and mobile engineering delivery as a Staff Engineer/Tech Lead across agentic automation and production systems. Worked across Flutter, Kotlin/Go/TypeScript, Elixir/Phoenix, and Node.js/PHP with Firebase-backed services.

Flutter Kotlin Go TypeScript Elixir Phoenix PHP Firebase PostgreSQL CI CD Temporal Release Automation

Senior Flutter Developer

Credilio Financial Technologies

Jun 2021 - May 2023 (1 year 11 months)

Built Flutter apps for large-scale financial transactions and implemented scalable Flutter architecture. Shipped a Flutter SDK to support partner integrations and automated QA pipelines.

Flutter BLoC Kotlin Firebase Automated QA Partner Integration

Tech Lead / Architect

GitStart (YC19)

Jan 2022 - Jan 2023 (1 year)

Architected backend APIs and led delivery for mobile banking and internal ticketing systems. Worked on Elixir/Phoenix services for real-time ticket and PR update data at scale.

Elixir Phoenix API Architecture Elixir Phoenix Backend APIs Compliance Focused Integration

Senior Mobile & Backend Engineer

GitStart (YC19)

Jan 2021 - Jan 2022 (1 year)

Built Flutter and Android features and contributed to Go and Elixir backend services for production logistics platforms. Progressed to lead a mobile squad within 8 months.

Flutter Android Kotlin Java Go Elixir Mobile Squad Leadership

SDK Engineer

Extrieve Technologies

Jan 2017 - Jun 2021 (4 years 5 months)

Built and shipped an enterprise document scanning SDK and related cross-platform integrations. Implemented real-time camera processing and on-device AI for document geometry detection plus an anti-fraud layer.

Flutter React Native iOS WebAssembly OpenCV Real Time Edge Detection Shake Blur Detection PDF TIFF Compression Anti Fraud (Rooted Emulators)

Full-Stack Engineer

O'Ryan Health

Built a pediatric at-home blood testing platform for decentralized clinical studies. Implemented end-to-end HIPAA compliance controls and integrated lab order and clinical workflow tooling with third-party partners.

Next.js PostgreSQL AWS HIPAA Encrypted PHI At Rest And In Transit Audit Logging Role Based Access Control Third Party Integrations

Co-Builder

GitStart

Co-built an internal AI Ticket Studio that traverses GitHub codebases, extracts context, and generates ticket-specific solutions using an agentic spec→plan→execute→verify loop.

OpenAI API Temporal PostgreSQL Go GitHub Codebase Traversal