Open to opportunities

Biswajit Biswas

@biswajitbiswas

I build reliable backend platforms, integrations, and LLM-powered business workflows.

At SELISE, I build and maintain backend systems for Swiss digital products spanning retail, loyalty, e-commerce, talent marketplaces, and regional media platforms.

I design APIs, model complex business workflows, and deliver integrations across Shopify, billing, CRM, search, cloud storage, and third-party data providers. I’ve improved data-heavy systems with queued processing, scheduled jobs, caching, bulk migration tooling, and dependable deployment and incident support.

I’ve also designed LLM-powered automation that discovers events, generates and translates localized content, and creates supporting images through coordinated workflows.

Before SELISE, I built Agrotrace at Aqualink Bangladesh Limited, including QR-based bale tracking, farmer and financial workflows, mobile APIs, compliance records, and operational reporting. I started my web application career building ERP features at Honeybee ERP Limited, translating operational requirements into reusable, database-backed application logic.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

SELISE Group

Oct 2024 - Present (1 year 10 months)

• Build and maintain backend systems for Swiss digital products across retail, loyalty, e-commerce, talent marketplaces, and regional media platforms.

• Designed LLM-powered workflows that discover upcoming events, generate localized content, translate it across languages, and create supporting images through a coordinated automation pipeline.

• Developed and supported integrations spanning Shop

System Design Shopify Software Architecture LLM GraphQL Generative AI Data Migration Unit Testing

Software Engineer

SELISE Group

Mar 2022 - Oct 2024 (2 years 7 months)

• Developed backend modules and REST APIs for Swiss client platforms using PHP, Laravel, MySQL, and event-driven application patterns.

• Built business workflows across multi-tenant SaaS, subscriptions, invoicing, payroll, recruitment, task management, and customer-support systems.

• Delivered third-party integrations, data migrations, background jobs, and reporting features while diagnosing p

MongoDB API Development MySQL Vue.Js Third Party Integrations PHP Algolia Payments Laravel

Laravel Developer

Aqualink Bangladesh Limited

Nov 2020 - Feb 2022 (1 year 3 months)

• Built core backend workflows for Agrotrace, an agricultural traceability platform digitizing farmer registration, crop purchasing, bale processing, warehouse movement, and shipment operations.

• Designed QR-based bale tracking and mobile APIs that maintained chain-of-custody records from purchase and grading through transport and warehouse handling.

• Implemented financial and compliance wor

Backend Development API Development MQTT REST APIs SOLID MySQL Database Design PHP Laravel SASS

Web Application Developer

Honeybee ERP Limited

Mar 2020 - Oct 2020 (7 months)

• Developed and maintained web application features for an ERP system supporting day-to-day business operations.

• Translated operational requirements into database-backed workflows and reusable application logic.

• Investigated defects, improved existing modules, and supported iterative feature delivery in a production business application.