Operator
Arshpreet
Singh
I build distributed backends, AI-native products, and interfaces that feel effortless.
Operator ID
AWS SAA · DVA
Knight · 2100
0
LeetCode rating
Knight · Top 1.56%
0+
Problems solved
DSA across all topics
0.00/10
CGPA
Chandigarh University
0
AWS certifications
SAA + Developer Associate
Distributed backends, AI-native tooling and products used by thousands of real people.
Distributed E-Commerce Backend
Five services, one event-driven order pipeline.
A production-shaped microservices backend: five independently deployable Spring Boot services behind an API gateway, coordinating orders over Kafka with idempotent consumers and a dead-letter queue, observable end to end through Prometheus and Grafana.
- Engineered a 5-service backend — Auth, Product, Order, Payment, Inventory — behind an API gateway with service-to-service authentication.
- Built the order pipeline on Apache Kafka with consumer-group coordination and partition-level concurrency, using idempotent consumers and a dead-letter queue for fault tolerance.
- Wrote JUnit 5, Mockito and Testcontainers integration suites with JaCoCo coverage gates enforced in GitHub Actions CI.
- Instrumented every service with Spring Boot Actuator and Micrometer, exporting telemetry to Prometheus/Grafana dashboards.
- Secured 25+ REST endpoints with JWT + RBAC; containerized with Docker and deployed to Kubernetes with horizontal pod autoscaling on AWS.
5
microservices
25+
secured endpoints
HPA
on Kubernetes
Bolt.new — AI Website Builder
One sentence in, a running project out — entirely in the browser.
An AI website builder that turns a single plain-English prompt into a 15–25 file running project in under 60 seconds, executed 100% in-browser via WebContainers with no server-side sandbox. Follow-up prompts patch only what changed.
- Turns one prompt into a 15–25 file running project in under 60 seconds, executed entirely in-browser through WebContainers.
- Engineered a Spring Boot 4 + Spring AI backend across 2 REST endpoints, routing each prompt to one of two base templates and streaming an XML artifact of files and shell commands.
- Added multi-turn follow-up support with PostgreSQL + pgvector chat memory, patching only changed files to cut per-follow-up token usage.
- Covered prompt routing and XML artifact parsing with JUnit 5 tests against WireMock-stubbed LLM responses, run on every push in GitHub Actions CI.
<60s
prompt to running app
15–25
files generated
0
server sandboxes
VLSID Fellowship Portal 2026
Replaced Google Forms for a 1,500-application review pipeline.
The official fellowship portal for the VLSID 2026 conference. It replaced a Google Forms + Excel workflow with an RBAC-enabled automated review system, processing 1,500+ applications from 2,000+ users and cutting review turnaround by 60%.
1,500+
applications
60%
faster reviews
30+ hrs
saved weekly
Eight categories, from the JVM to Kubernetes. Everything here is something I have shipped with, not just read about.
What I think in before I think about frameworks.
Two AWS associate certifications, a LeetCode Knight badge and a GATE 2026 qualification — all independently verifiable.
SAA — Associate
AWS Certified Solutions Architect
Amazon Web Services
Designing resilient, cost-aware architectures on AWS — VPC layout, storage tiers, IAM boundaries and highly available compute.
Verify credential on CredlyDVA — Associate
AWS Certified Developer
Amazon Web Services
Building, deploying and debugging cloud-native applications on AWS — SDKs, CI/CD pipelines, IAM and managed services.
Verify credential on CredlyAchievements
Top 1.56%
globally
LeetCode Knight
2100 contest rating with 1,500+ problems solved across data structures, algorithms and system design patterns.
See profileTop 0.5%
rank 210 / 40,827
Weekly Contest 511
Secured Rank 210 out of 40,827 participants in LeetCode Weekly Contest 511.
See profileGATE
2026 qualified
Qualified GATE 2026
Cleared the Graduate Aptitude Test in Engineering with a strong command of core CS — Operating Systems, DBMS, Computer Networks and DSA.
Conference platforms, a research lab at IIT Guwahati, and a developer community of 5,000+.
Full-Stack Developer
Aug 2025 — Jan 2026VLSID Conference · Remote
Owned the fellowship portal for the VLSID 2026 conference end to end, replacing a Google Forms and Excel workflow with a production system.
- Replaced a Google Forms + Excel workflow with a production-grade fellowship portal, processing and tracking 1,500+ applications from 2,000+ users.
- Led development of an RBAC-enabled automated review system (Next.js, Node.js, PostgreSQL) to evaluate 1,500+ applications.
- Reduced review turnaround time by 60% and saved an estimated 30+ hours/week of manual effort while eliminating transcription errors.
Research Intern
Jun 2025 — Jul 2025IIT Guwahati · Guwahati, Assam
Researched cache memory optimization on the gem5 simulator, quantifying how access patterns interact with replacement and prefetching strategies.
- Researched cache memory optimization strategies using the gem5 simulator.
- Analyzed data access patterns across 5 replacement policies and 9 prefetching strategies.
- Identified bottlenecks with the research team and implemented data-driven optimization strategies.
Hiring, collaborating, or just want to argue about consumer groups? My inbox is open.