I owned it from idea to production
I worked through the API boundaries, strategy logic, browser pools, and deployment instead of stopping at a prototype.
Backend, cloud, and data
Building the systems behind the interface.
I’m Parash. I build APIs, data pipelines, and cloud infrastructure that keep working when the traffic, data, and edge cases pile up.
4+ years building microservices, real-time pipelines, and AWS infrastructure · Based in Kathmandu, Nepal
4+Years building backend systems
MillionsEvents handled every day
2025Grepsr Employee of the Year
AWSSolutions Architect, Associate
01
A system I built
Production / Built solo
Grepsr · ScrapeSwitch
A scraping platform for pages that do not play nice.
I built ScrapeSwitch solo for Grepsr. A Rust API decides how each request should run, remembers the session, resolves a proxy, and hands browser-heavy work to a Python fetcher pool.
System mapRequest → result
01 / EdgeIncoming requestValidate · normalize
02 / Rust · Axum · TokioOrchestratorStrategy · session · proxy
03 / Python · FastAPIFetcher poolPlaywright · patchright
StateRedis memory
04 / Adaptive outputStatic or browser fetchcurl-impersonate · stealth browsers
Fast when possible, browser when needed
Some pages only need a static request. Others need a full browser. ScrapeSwitch hides that choice behind one API.
Rust decides, Python fetches
Rust keeps the control path lean. Python workers take on the slower browser work.
02
Day-to-day impact
The API is only part of the job.
At Grepsr, I work across backend, data, and infrastructure. That makes it easier to follow a production problem to the real cause instead of passing it between teams.
Current roleBackend Engineer
GrepsrFeb 2023 to present
Services that are easy to run
I build Python, Go, and gRPC services, then carry them through EKS, Helm, and CI/CD so the team can ship and run them without guesswork.
- Python
- Go
- gRPC
- EKS
- Helm
Millions of events, every day
I work on Java, Flink, Fluentd, and Kinesis pipelines that process millions of events a day, with Temporal and AWS services keeping the workflows moving.
- Java
- Flink
- Kinesis
- Temporal
- Lambda
The work around the endpoint
Auth, permissions, storage, observability, and database tuning are part of the job too. That work helped bring high-traffic API latency down from seconds to milliseconds.
- Auth0
- Cerbos
- PostgreSQL
- Redis
- Athena
AI that solves a real problem
I built tools that generate data quality rules and pull CSS selectors and XPaths from crawled pages. They run inside real pipelines, not as side demos.
- Data quality
- AWS S3
- Lambda
- Temporal
03
Open source
Fixes I sent upstream
If I can fix it upstream, I do.
These are small, specific changes, but they now help everyone using the project.
01
Python
fivetran/
I fixed two issues I ran into while working with Great Expectations, then sent the changes upstream.
30k+ GitHub stars02
Swift / TypeScript
TableProApp/
I traced a DeepSeek V4 streaming failure in TablePro and fixed the chat path that was returning 400 errors.
4.8k+ GitHub stars04
Recognition
Grepsr’s 2025 Employee of the Year.
Grepsr named me its top-performing employee of the year.
Hackathon Champion: CrawlGuard
I brought a cross-functional team together and we built CrawlGuard, a real-time data quality system, in 48 hours. It won the internal hackathon.
AWS Certified Solutions Architect, Associate
I earned the certification in 2025 and use the same ideas in production every day.
05
About and toolkit
I like clear boundaries, plain code, and quiet on-call shifts.
I’m happiest when I can trace a request from the API through the data and into the infrastructure. I care less about clever code and more about systems that are easy to understand, change, and run.
EducationBachelor of Computer Science
Kathmandu University · 2018 to 2023
Languages
- Python
- Go
- Java
- PHP
- Rust
Backend and data
- FastAPI
- gRPC
- Axum
- Tokio
- Apache Flink
- Temporal
- Playwright
Cloud and delivery
- AWS
- Docker
- Kubernetes
- Helm
- GitHub Actions
Storage and access
- PostgreSQL
- MySQL
- MongoDB
- Redis
- S3
- Auth0
- Cerbos