Daniar Tabys

Hi, my name is

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I build reliable backend systems and secure cloud infrastructure.

> About

Software engineering team lead with 8+ years of experience building backend services, cloud infrastructure, and data platforms — including two years at Amazon Web Services. I lead teams, own service architecture, drive security and compliance (ISO 27001, SOC 2), and ship scalable systems in Python (Django) and Java (Spring Boot) on AWS.

> Experience

May 2023 — Present
Software Engineering Team Lead · Remofirst

Lead a team of 5 engineers owning security and infrastructure for a global employment platform operating in 185+ countries. Drove ISO/IEC 27001 and SOC 2 Type I & II certifications end-to-end, built the authentication and access stack (Auth0 SSO, TOTP 2FA, granular ACLs), and launched a public OpenAPI. Developing in Python/Django with an ongoing migration to Java Spring Boot on Kubernetes.
- Python
- Django
- Java
- Spring Boot
- Auth0
- AWS
- Kubernetes
- MongoDB
- OpenTelemetry
Mar 2024 — Jan 2025
Senior Software Engineer (Contract) · Caterpillar

Led the migration of 600+ data pipelines to a new pure-Python framework built from scratch. Designed a Pydantic-based parsing language for defining AWS data pipelines and data-quality rules, with rule versioning and utilization metrics for real-time pipeline health.
- Python
- Pydantic
- AWS Kinesis
- DynamoDB
- GitHub Actions
- Azure DevOps
Feb 2022 — May 2023
Backend Developer · Petrel AI

Built a route-optimization service (modified Dijkstra with real-time traffic data) and an end-to-end QR-based package-retrieval system integrated with IoT smart postal boxes. Deployed Java Spring Boot services on AWS with Kubernetes and PostgreSQL.
- Java
- Spring Boot
- AWS
- Kubernetes
- PostgreSQL
Aug 2019 — Mar 2021
Software Engineer · Amazon Web Services

Developed and optimized backend features in an agile, cross-functional team, improving service processing times and maintaining high code quality through code reviews and unit testing.
- Backend
- Agile
- Code Review
- Unit Testing
May 2019 — Aug 2019
Software Engineer Intern · Amazon Web Services

Shipped new application features and contributed to a scalable database design; converted to a full-time Software Engineer role.
- Backend
- Databases
May 2018 — Aug 2018
Software Engineer Intern · PayPal

Developed and tested applications in Java and Python; built automated test scripts that reduced manual testing effort.
- Java
- Python
- Test Automation
Jun 2016 — Sep 2016
Software Security Engineer Intern · The New York Times

Performed penetration testing, threat modeling, and secure code reviews on web applications.
- Penetration Testing
- Threat Modeling
- Secure Code Review

> Projects

Recater

Code

A platform that connects caterers with community members to redistribute surplus food from events — cutting waste and getting good meals to people who need them. Built at Hacks for Humanity 2018.

JavaScript
Node.js
Express
Java

Blockchain Chain of Custody

Code

A tamper-evident chain of custody for digital forensic evidence, backed by a purpose-built blockchain. Every checkout, transfer, and disposal is cryptographically linked so the evidence history can't be quietly rewritten.

Python
Cryptography
CLI

django-webhook

Code

A plug-and-play Django app that fires outgoing webhooks whenever your models change. Handles HMAC signing, automatic retries with exponential backoff, an event audit log, and replay-attack protection with secret rotation.