<Tanim Istiak/>

A CSE Grad. Software Engineer at SKN IT. Specialized in JavaScript (Node JS, Express JS, React JS, Next JS, Typescript, React Native) | Cloud Deployment (AWS) | Database Management (PostgreSQL, MongoDB). Interested in DSA. AI/ML Enthusiast. Problem Solver.

Dhaka, Bangladesh

About Me

My passion lies in full-stack development, building complete, end-to-end applications. My technical toolkit is centered around modern JavaScript and cloud infrastructure.

On the frontend, I use React and Next.js with TypeScript to build fast, scalable, and type-safe web applications. I also have experience extending this knowledge to mobile development using React Native.

For the backend, I am proficient in creating robust and efficient REST APIs with Node.js and Express. I'm comfortable connecting to both NoSQL databases like MongoDB and relational databases like PostgreSQL, choosing the right tool for the job.

To complete the development lifecycle, I have hands-on experience with DevOps principles, using Docker for containerization and deploying applications on AWS.

Work Experience

Software Engineer

SKN ITFull-Time

May 2025 - Present · London, United Kingdom

  • Drove full-stack delivery of a tax-practice SaaS on Next.js / Node / PostgreSQL, cutting page-load time ≈60 ms and boosting monthly active users 30 %.
  • Integrated AWS Cognito, EC2, Amplify, S3, SNS, SES (MFA, RBAC, scalable hosting, storage, messaging), tightening security and slashing auth-related support tickets 40 %.
  • Containerized services with Docker and ran blue-green releases via GitHub Actions & Jenkins, shrinking release cycles from 7 days to 24 hrs.
  • Tuned Prisma/PostgreSQL indexes, query plans, and connection pooling, trimming RDS cost ≈20 % and keeping P95 latency <150 ms.
  • Connected external UK services—Royal Mail, Companies House, HMRC MTD VAT APIs, GateWayAPIs—to automate address validation, company checks, and tax filings, halving manual data entry.

Software Engineer

GizantechFull-Time

Sep 2024 - Apr 2025 · Dhaka, Bangladesh

  • Optimized database performance and maintainability using Prisma ORM and Mongoose ODM, improving query efficiency by 30% and streamlining data operations.
  • Enhanced deployment efficiency, scalability, and environment consistency with Docker, reducing development and deployment issues by 30%.
  • Implemented CI/CD pipelines with GitHub Actions, automating deployments and reducing deployment time by 50%, while ensuring reliable and consistent releases.
  • Deployed scalable and efficient web applications on AWS EC2 and RDS, leveraging cloud-native services to enhance performance and reliability.

Software Engineer

Psycure OrganizationFull-Time

Sep 2023 - Aug 2024 · Dhaka, Bangladesh

  • Led full-stack development of Psycure’s website and Android app from scratch, resulting in a 30% improvement in user engagement through user-centred design and optimised performance.
  • Managed end-to-end development, streamlined platform functionality by integrating A/B testing, and enhanced UX based on iterative user feedback.
  • Spearheaded Agile methodologies by leading daily Scrums, implementing Kanban for task tracking, and enabling efficient sprint planning that accelerated project delivery by an average of three weeks.

Skills & Technologies

Frontend Development

JavaScript (ES6+)TypeScriptReactNext.jsReact NativeReduxZustandReact Router

UI & Styling

Tailwind CSSShadcn UIMaterial UIBootstrapFigma

Backend & Databases

Node.jsExpressMongoDBPostgreSQLPrismaNodemailerAWS SDKMulterMongoose

DevOps & Cloud (AWS)

DockerAWSEC2S3ECSECRRoute 53AmplifyIAMCustom VPS (Hostinger, Linode, GoDaddy, etc.)ServerlessLambdaIoT Core

Automation

CI/CDGithub ActionsJenkins

Authentication & Services

AWS CognitoJWTFirebaseFirebase Realtime DatabaseSNSSES

Tools & APIs

GitPostmanAgoraZoom API

SDLC

ScrumKanbanWaterfall

Project Management

ClickupJira

Projects

Psycure

A modern, responsive, functional web application built for psychologist booking, session conducting, counselling, and to improve overall mental health assessment process much easier with user, psychologist and admin dashboards.

React JSMaterial UITailwind CSSNode JSExpress JSFirebaseMongoDBReduxAgoraLinode
Live

Psycure Android App

A fully functional android app for Psycure to book session, live chat, mood journal, daily assessment, video session, meditation and to improve the users journey to mental health.

React NativeFirebaseRealtime DatabaseAgoraReact Native Track PlayerNode JSExpress JSMongoDBPlay Console
Live

TaxPlus Accountants

A fully functional web application system to manage an accountancy and consultancy firm's day to day operations consisting admin, staff, 3rd party vendor and client dashboards.

Next.jsTailwind CSSDaisy UINode.jsExpress JSMVCZustandPostgreSQLCognitoPrismaS3NodemailerMulterJWTNodemailerSESEC2AmplifyRoute53Whatsapp SDKAWS SDK
Live

Outback Comms

A web application to serve a major Starlink vendor in Australia to track the user, analytics, internet usage, billing plan, package auto renewal, data from micro controllers.

ReactNode JSExpress JSDockerStarlink APIPostgreSQLPrismaReduxEC2Cognito
Live

Current Interests & Exploration

Beyond my professional work with web technologies, I'm passionate about exploring new fields. I dedicate my personal time to learning about Artificial Intelligence and high-performance backend systems, applying my knowledge to small personal projects.

Artificial IntelligenceMachine LearningPythonGo (Golang)Large Language Models (LLMs)Google GemmaPyTorchTensorFlowScikit-learnOpenCVPandasNumPyAgentic AIN8N