Hi, I'm Karan Singh Tomar

Software Developer • AI Engineer • Backend Specialist

I build production-ready AI systems, scalable backend architectures, and developer tools that solve real-world problems and handle real users.

Currently open to opportunities Available for freelance projects

About Me

I’m a Software Developer with ~3 years of experience building real-world systems used by thousands of users. I specialize in backend engineering, AI-powered products, and scalable APIs.

At Careers360, I’ve worked on production-grade systems including APIs, internal tools, and AI-driven features that improved user engagement and performance. I focus on writing clean, scalable, and maintainable code.

My core strength lies in combining AI with practical engineering — building tools like automated Jira generators, job analysis systems, and developer productivity tools.

Currently, I’m focused on building intelligent systems and preparing for high-impact engineering roles where I can contribute to large-scale products.

Agentic AI Systems 95%
Web Services & APIs 90%
Full-stack Development 85%
Machine Learning 80%

Services

Agentic AI Systems

Build intelligent AI agents that can autonomously perform complex tasks, make decisions, and interact with multiple systems to solve real-world problems.

Starting at $1500

Production-ready AI agents, automation tools, and GPT-powered systems for startups and businesses.

Web Services & APIs

Develop scalable REST APIs, microservices, and web services that handle high traffic and integrate seamlessly with existing systems.

Starting at $1000

High-performance REST APIs, backend systems, and scalable microservices with clean architecture.

Full-stack Web Applications

Create complete web applications from frontend to backend, including database design, user authentication, and deployment strategies.

Starting at $500

Fast, modern web applications with strong backend + clean UI (React / FastAPI / DB).

Extensions

Official extension products and tools built for real-world developer and productivity workflows.

Jira AI Task Generator

Live

Transforms rough requirements into Jira-ready tickets with acceptance criteria and subtasks, helping teams plan and ship faster.

Code Archeology for VS Code

In Development

Provides function-level history, ownership, and evolution insights so developers can debug and onboard faster.

Portfolio

Jira Task Generator

AI-powered system that converts raw product requirements into structured Jira tickets with acceptance criteria, subtasks, and engineering breakdowns — reducing planning time by 60%.

Python OpenAI Jira API

Job Lens AI (Job Analyzer)

Job Lens AI (Job Analyzer) for job hunting that analyzes job descriptions, identifies skill gaps, and helps plan focused interview preparation.

Python OpenAI NLP

Code Archeology for VS Code

Code Archeology for VS Code to get all details of function, including history, ownership, and evolution for faster debugging.

Elasticsearch TypeScript VS Code API

Experience

Software Developer

Careers360

2021 - Present (3 years)

  • Built and maintained scalable APIs and backend services used by thousands of students daily
  • Developed AI-powered features that improved user engagement and recommendation quality
  • Optimized system performance and reduced downtime through better architecture and monitoring
  • Collaborated across teams and contributed to faster feature delivery cycles

Education & Certifications

Continuous Learning

2019 - 2023

  • Bachelor's in Computer Science with focus on AI/ML
  • Google Cloud Professional Developer
  • Multiple AI/ML specialization courses

Latest Articles

Article Details

Deep dives from the latest articles

How I Built Production-Ready AI Agents (Without Overengineering)

Most AI agent systems fail in production because they optimize for demo quality, not reliability. My baseline architecture keeps one orchestrator service, task-specific tools, strict output contracts, and clear retry limits. The objective is to make the agent predictable before making it fancy.

I start by defining deterministic tool boundaries: each tool does one thing, validates input, and returns machine-friendly output. Then I wrap tool calls with timeout policies, idempotency keys, and observability hooks. This gives us clean traces for every failed run and makes debugging practical for real teams.

The biggest win usually comes from guardrails: schema-based response validation, fallback prompts, and human handoff for uncertain decisions. This approach shipped faster and cut noisy failures significantly compared to complex autonomous flows.

How to Design APIs That Don’t Break at Scale

Scalable APIs are more about contracts than code. I treat every endpoint as a long-term interface and design for backward compatibility from day one. Versioning, explicit pagination, and stable response envelopes prevent most production regressions.

Performance comes from predictable patterns: efficient database access, bounded payloads, and caching near read-heavy endpoints. I also enforce request validation and rate limits consistently so one noisy client cannot degrade the entire service.

When teams iterate quickly, change management matters. Deprecation windows, structured API changelogs, and smoke tests on critical endpoints let us move fast without breaking consumers.

Real Database Optimization Techniques That Actually Work

The first rule of DB optimization is measuring before changing. I profile slow queries, inspect query plans, and rank bottlenecks by business impact. This avoids spending time on micro-optimizations that do not affect user experience.

High-impact fixes are usually straightforward: compound indexes for real access paths, removing N+1 query patterns, and reducing oversized joins. In write-heavy systems, batching and async processing also reduce lock pressure dramatically.

Long-term performance comes from ongoing monitoring. I track p95 latency, row scan counts, and cache hit ratios in dashboards so regressions are visible before they hit users.

DevOps for Developers: What Actually Matters in Real Projects

You do not need a complex DevOps stack to improve delivery quality. The highest ROI practices are CI checks on every PR, reproducible environments, and safe deployments with rollback plans.

I prioritize observability early: structured logs, basic metrics, and alerting for error spikes. Once failures are visible, teams can fix systemic issues faster and reduce firefighting.

For growing products, progressive rollout and feature flags become essential. They let us ship faster while keeping risk controlled, especially when new features touch critical user flows.

How I Use Kafka for Real-Time Systems (Simple Breakdown)

Kafka works best when topic design reflects domain events clearly. I use stable event schemas, explicit partition keys, and consumer groups aligned to business functions rather than random services.

Reliability comes from operational discipline: retry topics, dead-letter queues, idempotent consumers, and offset monitoring. These patterns handle transient failures without duplicating critical actions.

For scale, I monitor lag, throughput, and processing time per consumer group. This makes it easy to spot bottlenecks and scale the right part of the pipeline before users notice latency.

Get In Touch

Let's discuss your next project

Let's Connect

I’m open to opportunities, freelance work, and interesting projects. If you’re building something impactful or need help with backend systems or AI — let’s connect.

Email

karantomar207@gmail.com

Phone

+91 9621930201

Location

Gurugram, India

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