Passionate computer scientist dedicated into software engineering driven by natural curiosity which allows for hacking, experimenting, planning, designing and building things (which are not ending on software). "Thinker" (for lack of a better word) who rather be understanding the problem and underlying system and constraints before pulling out a solution. Engineer who's not afraid to fail when there is space to do so, dive into unknown and try to find a solution even if don't know the exact one.
Hi, I'm Jay 👋🏻
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See all work- Jan2022 - Jan2023stepapp.plMid/Senior/Lead Software Engineer
- Development and maintainment of core internal contexts including: Payment Gateway (Stripe/Off-Stripe), Content Management System (CMS), Storefront (Checkout Process), Reservation Context (Calendar-based appointments between workforce and clients) and few other parts related to human resource management. Ownership of 2 of 3 actors in whole system.
- Design and implementation of GraphQL API for system which included Authentication (AuthN) based on AWS Cognito as IAM, Authorization (AuthZ) made on RBAC and database, Dataloader integration (Prisma/TypeORM) and integration of Apollo Caching (Redis/Keyv-based).
- Responsibility of performing migration from legacy software system built on top of Django and Python to newly created TypeScript-based back-end for overall refreshment of codebase.
- Research, Design and Development of software components related to Enterprise Integration Patterns (EIP), Event-Driven Design (EDD), Domain-Driven Design (DDD) and SOLID Principles.
- Paricipating in Event Storming process to understand domain model behind existing and future software system and slice boundary contexts to avoid future coupling and leaks in software architecture (Context Mapping process)
- Working on Amazon Web Services (AWS) as Infrastructure-as-a-Service (IaaS) and using Infrastructure-as-a-Code (IaaC) tools (Terraform) to interact or modify existing infrastructure (AppRunner,RDS,Elasticache)
- Designed Application-release automation (ARA) based on git-cliff, Docker and Github Actions.
- Performing software quality assurance (SQA) by development of automated suite of tests (BDD).
- Series of observability-related improvements: correlation of commands, events and logs to Request Trace Context (request id) and user identification from jwt. Used AsyncLocalStorage, pino and newrelic client library to build “magical” tracing context)
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