Mithilesh Joshi

Senior Software Engineer

Pune, Maharashtra, India4 yrs 7 mos experience

Most Likely To Switch

Key Highlights

Built a sub-30ms ad server handling millions of requests.
Reduced manual effort by 85% in Salesforce data migration.
Thrives in startup environments emphasizing ownership and speed.

Stackforce AI infers this person is a Backend Engineer in Ad-Tech with strong expertise in high-throughput systems.

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Skills

Core Skills

Backend DevelopmentSystem DesignEtl ProcessesAutomationData Migration

Other Skills

Node.jsRedisDockerArgoCDPythonMongoDBBigQueryGitHub ActionsFlaskSalesforce.com DevelopmentpandasAndroidPower SystemsSolrScalability

About

Senior Software Development Engineer with 4.5+ years of experience building and scaling production backend systems in ad-tech. At OSMOS, I architected and built an end-to-end ad-serving product from scratch — designing the full pipeline from campaign management to a sub-30ms ad-server handling millions of daily requests across multi-region deployments. What I work on daily: → High-throughput APIs (Node.js, Python/Flask) → ETL pipelines & bulk data processing (MongoDB, BigQuery, Redis) → Cloud infrastructure & deployments (GCP, Docker, ArgoCD, GitHub Actions) → API monitoring, alerting, and production reliability Previously at Accenture, I built a Python automation package for Salesforce data migration that reduced manual effort by 85%. I thrive in startup environments where ownership, speed, and system design thinking matter more than titles. Tech: Node.js · Python · Flask · Redis · MongoDB · BigQuery · SQL · GCP · AWS · Docker · ArgoCD · GitHub Actions · System Design · Microservices Open to backend / backend + infra roles. Let's connect.

Experience

4 yrs 7 mos

Total Experience

2 yrs 4 mos

Average Tenure

2 yrs 10 mos

Current Experience

Osmos

2 roles

Senior Software Development Engineer

Promoted

Aug 2025 – Present · 10 mos

Led architecture and engineering for a high-scale ad-serving product, owning the full pipeline from campaign management to ad delivery.
Built a sub-30ms latency ad-server (Node.js) serving millions of daily ad requests, deployed across multiple regions using Docker and ArgoCD
Designed Redis as the primary data store for ultra-fast ad selection and targeting lookups
Designed API monitoring and alerting systems for production incident detection
Mentored junior engineers, led code reviews, and drove architectural decisions

Node.jsRedisDockerArgoCDBackend DevelopmentSystem Design

Software Engineer

Jul 2023 – Jul 2025 · 2 yrs

Joined as the core backend engineer, building critical platform services from the ground up.
Architected the end-to-end ad-serving pipeline: Campaign Management (Node.js) → SQL → ETL → BigQuery → Data Processor → Redis → Ad Server, serving ads on Android devices and smart TVs
Built ETL pipelines and bulk data processing jobs (Python) syncing data across MongoDB, BigQuery, and third-party ad platforms — handling millions of rows
Refactored reporting and analytics queries — 30% performance improvement in data retrieval latency
Integrated multiple payment gateways (2C2P, Razorpay, PayU) with secure reconciliation and retry mechanisms
Authored Dockerfiles for all services, built CI/CD pipelines (GitHub Actions, ArgoCD) with zero-downtime rollouts
Executed SVN-to-Git migration for the engineering team

PythonMongoDBBigQueryGitHub ActionsBackend DevelopmentETL Processes

Accenture in india

Associate Software Engineer

Oct 2021 – Aug 2023 · 1 yr 10 mos · Pune, Maharashtra, India

Developed a Python automation package for Salesforce data migration and prevalidation, reducing manual operational effort by 85%
Processed and validated large datasets using pandas, NumPy, and SimpleSalesforce
Built frontend components using Salesforce LWC and React
Collaborated with cross-functional teams on code reviews and system design alignment

PythonFlaskSalesforce.com DevelopmentAutomationData Migration