Ajay Krishna K V

Backend • Junior • Bengaluru, India • UTC+05:30 • Work permits: India • Citizenship: India • Available in 4 weeks • from $30k per year

Software Developer

5+ years exp

JavaScript

TypeScript

Java

SQL

Node JS

Python

Active 4 days ago

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Overview

Technical skills

Timeline

Roles

Overview

Fullstack engineer (middle level) focused on building small-to-medium React frontends with Node backends and occasional blockchain scripting. The strongest proven skill is creating reusable frontend primitives and local state orchestration, evidenced by the custom toast implementation in Hendobox/GHO-Facilitator-Hackathon/frontend/src/components/ui/use-toast.ts. There is limited public evidence of systematic accessibility engineering, large-scale architecture design, or production-grade performance benchmarking and CI pipelines.

Phone

Technical skills

Languages

JavaScript

TypeScript

Java

SQL

Node JS

Python

Node JS

Nodemailer

Express

Axios

Cheerio

DevOps

AWS

Docker

Rest API

Kubernetes

GCP

Databases

PostgreSQL

Snowflake

BigQuery

Trino

Google BigQuery

Presto

Frontend

React.js

Tailwind CSS

Ant Design

React Router

Other

Spring Boot

Spring Framework

JUnit

Claude

Flask

Mocha

GitHub

Git

Vite

Dotenv

Model Context Protocol

CI/CD

autoprefixer

SOAP

Timeline

Software Engineer • Middle

Peliqan • Full-Time

Mar 2025 to Present 1 Year 7 Months Bengaluru In office

Built and maintained SaaS connectors and platform features for a managed ELT system, moving data from source systems into warehouses such as BigQuery and Snowflake. Extended a Singer-based replication pipeline to propagate source deletions and keep destination tables consistent. Developed a streaming query layer and diagnosed recurring Trino out-of-memory issues using JVM and native memory analysis, validating fixes with stress tests. Supported production operations by tracing root causes across Kubernetes and AWS services.

Java

SQL

PostgreSQL

Snowflake

Trino

BigQuery

AWS

Kubernetes

Associate Software Engineer • Middle

Bosch Global Software Technologies • Full-Time

Jan 2024 to Mar 2025 1 Year 2 Months Coimbatore In office

Developed and maintained enterprise applications for the Inubit BPM platform using Java, Spring Framework, and JUnit. Migrated legacy SOAP services to RESTful Spring Boot APIs to improve maintainability and integration workflows. Refactored containerized system tests into Docker-based environments, reducing test execution time. Resolved critical issues in the Mail Connector component to improve reliability of email integrations.

Java

Spring Framework

Spring Boot

JUnit

Docker

Rest API

College of Engineering Trivandrum (CET)

Bachelor's Degree • Computer Science Engineering

2019–2023 Thiruvananthapuram, Kerala

Junior Backend Developer Confidence: Medium API Engineer

Junior backend engineer focused on Node.js APIs and web-scraping automation. Proven at implementing simple Express-based download and scraping backends as shown by AJAYK-01/Reactube/ytb-dl-backend/server.js and Roshan-R/Cherava/index.js. Production-grade concerns such as secure input handling, transaction management, structured observability, and migration/version history are not evidenced in the public code.

API Design

2/10

How well APIs are designed

Minimal API design; simple Express endpoints implemented but no versioning, idempotency, pagination, or consistent error contract are present.

Evidence

AJAYK-01/Reactube/ytb-dl-backend/server.js: /download endpoint building responses and launching download child processes Roshan-R/Cherava/index.js: POST /api and other HTTP endpoints with direct request handling and console-based error responses

Data Layer & Database

2/10

Working with databases

Basic data-layer usage: raw SQL through pg-promise and simple inserts/queries are used but there is no evidence of migration history, explicit transaction boundaries, or advanced integrity handling.

Evidence

Roshan-R/Cherava/index.js: db.any('SELECT * FROM Workflows ...') and db.none('INSERT INTO Workflows VALUES(...)') Roshan-R/Cherava/backend/server.js: use of pg-promise for DB interactions without transactions or migration artifacts

Scalability & Performance

2/10

Handling load and speed

Limited scalability and performance considerations; scheduling and child-process based downloads exist but there is no queuing, pooling, caching strategy, or tuned connection management.

Evidence

AJAYK-01/Reactube/ytb-dl-backend/server.js: exec('yt-dlp ...') invoked per request to spawn a heavy child process Roshan-R/Cherava/index.js: schedule(...) via node-cron used to run scrapers on intervals (no queue/worker decoupling)

System Architecture

2/10

Overall system structure

Simple monolithic layout with light separation of concerns (small service module for mail), but no evidence of deliberate service decomposition, config/secret management, or graceful degradation patterns.

Evidence

Roshan-R/Cherava/backend/services/mail_service.js: separate mail module used by index.js Roshan-R/Cherava/index.js and backend/server.js: monolithic Express app combining scheduling, scraping, DB and HTTP handlers

Security & Auth

1/10

Protecting data and access

Security posture is weak in places: unsanitized shell command construction, no input validation or auth on endpoints, and secrets are printed to console.

Evidence

AJAYK-01/Reactube/ytb-dl-backend/server.js: constructs shell command strings using request parameters (yt-dlp invocation) without sanitization Roshan-R/Cherava/index.js: console.log of environment variables (Etheral credentials) and no authentication on API endpoints

Reliability & Observability

1/10

Stability and monitoring

Minimal reliability and observability: console logging and basic try/catch usage only, no structured logs/trace ids, no timeouts, no backoff/retry policies, and limited error propagation.

Evidence

AJAYK-01/Reactube/ytb-dl-backend/server.js: process.on('exit') and process.on('error') handlers only; no structured logging or retries Roshan-R/Cherava/index.js: multiple console.log statements and catch blocks that swallow or only log errors

Verified artifacts

facebookincubator/infima• ★ 450 vibinex/vibinex-server• ★ 20 vibinex/chrome-extension• ★ 11 madhavpcm/AutoVolume• ★ 9

Expertise

Node.js• Junior

Databases & Vector Storage• Junior

Technologies

Java• since 2024 • Junior

Rest API• since 2024

Spring Framework• since 2024

Flask

Spring Boot• since 2024

Dotenv

Recommendations

Build and harden small backend services (Express) that include input validation, safe shell handling or worker queues instead of inline exec of user-supplied commands.
Add reliability and observability: structured logging with correlation ids, timeouts, and retry/backoff strategies for external calls and child processes.
Improve data-layer robustness: add migration tooling, explicit transactions where needed, and database error handling and tests for edge cases.

Repositories

The developer's experience in this domain has been verified based on AI analysis of the following repositories:

ajayk-01 Reactube Cherava

Junior Frontend Developer Confidence: Medium Fullstack

UI Component Architecture

4/10

How interface parts are built

Custom component logic and a small local UI primitive show deliberate component design, but much of the UI work is based on existing kits and templates rather than a bespoke design system.

Evidence

Hendobox/GHO-Facilitator-Hackathon/frontend/src/components/ui/use-toast.ts AJAYK-01/Reactube/src/App.css

Responsive & Cross-browser

3/10

Works on all screens and browsers

Responsive basics and sensible defaults are present (viewport meta, Tailwind container settings), but there is no advanced responsive strategy (container queries, RTL readiness) or explicit cross-browser feature detection.

Evidence

AJAYK-01/Reactube/public/index.html Hendobox/GHO-Facilitator-Hackathon/frontend/tailwind.config.js

Performance Optimization

4/10

Speed of the interface

Shows awareness of performance via on-demand web-vitals import and some state/memo patterns in UI primitives, but lacks measured optimization artifacts (bundle analysis, virtualization) or documented before/after metrics.

Evidence

AJAYK-01/Reactube/src/reportWebVitals.js Hendobox/GHO-Facilitator-Hackathon/frontend/src/components/ui/use-toast.ts

Accessibility & Semantics

2/10

Usable for everyone

Small accessibility considerations exist (prefers-reduced-motion, noscript), but no evidence of ARIA on custom widgets, focus management, keyboard handling or automated a11y checks in CI.

Evidence

AJAYK-01/Reactube/src/App.css AJAYK-01/Reactube/public/index.html

State Management & Data Flow

4/10

Managing data in the app

Reads as a practical engineer with explicit state discipline in UI primitives and server-side flows (cron/db/email). There is moderate handling of async flows but no evidence of advanced server-state libraries or request-cancellation patterns in the frontend.

Evidence

Hendobox/GHO-Facilitator-Hackathon/frontend/src/components/ui/use-toast.ts Roshan-R/Cherava/index.js

UX & Visual Polish

3/10

Look and feel quality

Visual polish and layout styling (gradients, custom scrollbars, Tailwind theming) are present and make polished UIs, but UX patterns like consistent loading/error/skeleton handling and undo/rollback patterns are not widely evidenced.

Evidence

AJAYK-01/Reactube/src/App.css Hendobox/GHO-Facilitator-Hackathon/frontend/tailwind.config.js

Expertise

React• Junior

Frontend Architecture & Build Tools• Junior

HTML & CSS• Junior

Industries

Blockchain & Crypto• Junior

Internet Services• Junior

Technologies

Node JS• Junior

Tailwind CSS

Express

React.js

Vite

Axios

Ant Design

Nodemailer

Cheerio

React Router

autoprefixer

Recommendations

Build medium-sized React SPAs with a Node BFF where you own both the UI and backend integration.
Implement UI primitives and design-system pieces (toasts, modals, forms) that require focused state and lifecycle handling.
Prototype blockchain dapps and deployment/test scripts where small Rust/TypeScript/Hardhat integrations are needed.
Develop scraping and automation backends with cron scheduling and email/notification integrations while improving security and input sanitization.

Repositories

The developer's experience in this domain has been verified based on AI analysis of the following repositories:

Reactube Cherava GHO-Facilitator-Hackathon

Junior QA Engineer Confidence: Medium API QA Engineer

A generalist software engineer with a middle-level profile focused on backend and blockchain integration testing and tooling. The strongest proven skill is integration-level smart contract testing and deployment automation demonstrated by the Hardhat test suites and deploy scripts in the contracts project. There is limited public evidence of dedicated QA infrastructure, CI test engineering, performance testing, or API contract tooling for HTTP services.

Test Automation Frameworks

4/10

Building automated tests

Evidence of test automation using Hardhat/Mocha-style tests for smart contracts and scripted deploy/test helpers, but no dedicated QA fixtures, mock HTTP servers, or parallelized test harnesses.

Evidence

Hendobox/GHO-Facilitator-Hackathon/contracts/test/test.source.ts Hendobox/GHO-Facilitator-Hackathon/contracts/test/test.receiver.ts Hendobox/GHO-Facilitator-Hackathon/contracts/scripts/deploy.source.ts

Test Coverage & Strategy

4/10

What and how to test

Focused unit and integration test cases covering negative paths and invariants in smart contract tests, with explicit reverted-with checks and state assertions, but no property-based testing, mutation testing or risk-tagged test strategy visible.

Evidence

Hendobox/GHO-Facilitator-Hackathon/contracts/test/test.source.ts Hendobox/GHO-Facilitator-Hackathon/contracts/test/test.receiver.ts

API & Integration Testing

3/10

Testing how parts work together

Some integration testing is present: smart contract tests exercise cross-contract flows and use impersonated signers, and simple backend endpoints exist for Web3 interactions, but there is no evidence of contract testing tools like Pact/schemathesis or schema validation harnesses for HTTP APIs.

Evidence

Hendobox/GHO-Facilitator-Hackathon/contracts/test/test.source.ts AJAYK-01/CampusVote/SERVER/server.py AJAYK-01/CampusVote/SERVER/transfer_token.py

Performance & Load Testing

Testing speed under load

Not evidenced in public code

Bug Reporting & Analysis

Finding and describing bugs

Not evidenced in public code

CI Test Integration

Running tests automatically

Not evidenced in public code

Expertise

API Testing & Contract Validation• Junior

Unit & Component Testing• Junior

Industries

Blockchain & Crypto• Junior

Financial Services• Junior

Technologies

JavaScript• since 2021 • Junior

TypeScript• since 2023 • Junior

Mocha

Recommendations

Develop and maintain integration test suites for blockchain protocols and DeFi flows including negative-path and edge-case tests that assert exact failure modes.
Implement API contract testing and automated schema validation for backend HTTP endpoints used by frontends and Web3 scripts.
Build CI test integration that captures artifacts and runs selective test subsets on diffs, and add per-test quarantine or focused retry policies for flaky cases.
Expand automated test coverage with property-based tests or fuzzing for critical invariants in financial or token-handling logic.

Repositories

The developer's experience in this domain has been verified based on AI analysis of the following repositories:

Cherava GHO-Facilitator-Hackathon CampusVote