Jayabal Rajendran
@jayabal-rajendran · Director of Engineering
Building resilient, high-performance systems since 2017. I bridge technical depth with strategic vision — architecting distributed systems, leading engineering teams, and turning ambitious ideas into production-grade realities.
35+ apps shipped
13+ engineers grown
10+ awards
8+ years experience
README.md
👋 About Me
I'm a Director of Engineering based in Bangalore with 8+ years of experience building scalable distributed systems and leading high-performance engineering teams. I believe great engineering is as much about people as it is about code.
My philosophy: build_with_intent() && lead_with_empathy() && ship_with_confidence()
🚀 What I Do
- Design HLD/LLD systems handling real-time data, event-driven microservices, and cloud-native infrastructure on AWS & Azure
- Lead end-to-end delivery — from product ideation and technical scoping to CI/CD pipelines and post-launch monitoring
- Build high-performing engineering teams with a culture focused on ownership and growth
- Reduce cloud costs and improve performance through strategic refactoring and infrastructure tuning
📊 Stats
- Grew engineering team from 2 to 13+ engineers at Insuredmine
- Reduced cloud infrastructure costs by 25% through strategic optimization
- Improved application performance by 60% via profiling, caching & query tuning
- Zero enterprise client escalations across 40+ team members managed
commit history
4 commits
Insuredmine Infotech India Pvt. Ltd · Bangalore · 2020 – present
Director of Engineering HEAD · main
Insuredmine
- Ascended to Director role through consistent excellence — a journey that began on day one as a Software Engineer
- Owned the complete SDLC across 35+ production applications
- Architected high-scale distributed systems using microservices, event-driven patterns, AWS, and container orchestration
- Grew the engineering team from 2 to 13+ engineers; mentored individuals who became key contributors
- Reduced infrastructure billing by 25% and improved app performance by 60%
Jun 2020 → now
Squash Apps · Coimbatore · 2018 – 2020
Software Engineer
Squash Apps
- Designed and led architectural decisions across multiple client product builds
- Delivered end-to-end solutions covering product setup, back-end services, DB management, Scrum, and CI/CD
- Received 4 awards in 2 years including Best Team Lead and Employee of the Month — twice
- Managed 40+ team members for high-stakes onsite projects — zero enterprise client escalations
- Earned onsite engagement with global client Lumachain
Jun 2018 → May 2020
KLR Technologies · Coimbatore · 2017 – 2018
Software Developer
KLR Technologies
- Contributed to OASES — a specialized aviation technology software platform for fleet and MRO management
- Gained foundational experience in enterprise-grade software development
Aug 2017 → May 2018
languages & tools
tech-stack.md
Cloud & Infrastructure
AWS EC2 / S3 / Lambda / RDS / ECSSQS / SNSAzureKubernetesDockerCI/CD Pipelines
Backend & Architecture
Node.jsTypeScriptJavaSystem Design HLD/LLDMicroservicesRESTful APIsAWS CognitoOAuth 2.0 / JWTPassport.js
Data & Messaging
MongoDBClickhousePostgreSQLDynamoDBMySQLMS SQL ServerRedisRabbitMQApache KafkaAmazon SQS
Frontend & Testing
Vue.jsWeb DevelopmentSelenium
Leadership
Engineering LeadershipAgile / ScrumRisk ManagementTeam BuildingMentoringDisaster Recovery
releases & tags
10 releases
awards.log10 awards · 2 orgs · 6 years
Insuredmine
Aug 2024
v8.0-commit
Outstanding Commitment Award
Sustained excellence and unwavering dedication to the organization's mission.
Insuredmine
Jun 2023
v7.0-pillar
Pillar of Insuredmine
Foundational contributor to engineering culture and product excellence.
Insuredmine
Jan 2023
v6.0-gem
Precious Gem Award
Acknowledged as an invaluable asset to the engineering organization.
Insuredmine
Nov 2021
v5.0-annual
Annual Awardee
Top performer of the year across engineering and leadership dimensions.
Insuredmine
Apr 2021
v4.0-star
IM Star
Recognized for going above and beyond in critical delivery milestones.
Insuredmine
Dec 2020
v3.0-leader
Potential Leader
Identified early as a high-potential leader shaping the future of engineering.
Squash Apps
Jun 2019
v2.3-quarter
Employee of the Quarter
Standout performer across technical delivery and collaboration.
Squash Apps
Mar 2019
v2.2-lead
Cloud Nine Collaborator — Best Team Lead
Exceptional team leadership and collaborative project delivery.
Squash Apps
Feb 2019
v2.1-month
Employee of the Month
Consistently exceeding expectations in technical output and team dynamics.
Squash Apps
Sep 2018
v1.0-first
Employee of the Month
First major recognition — setting the tone for a career defined by high performance.
repositories
8 projects
📦 insuredminelive
Full-featured insurance agency CRM — policy pipelines, AMS integrations, e-signatures, and real-time analytics. Scaled from 2 to 13+ engineers.
13+Engineers
60%Perf gain
25%Cost saved
🔗 lumachainlive
AI-powered supply chain transparency platform bringing real-time traceability to global food and retail supply chains. Onsite engagement.
✈️ oaseslive
Mission-critical aviation software for fleet and MRO management used by global airlines — maintenance, compliance tracking, technical records.
🛒 panitrarchived
India's first social marketplace — hyperlocal P2P platform for buying and selling across real estate, vehicles, electronics, and services.
🏫 doodliolive
Comprehensive school management system covering admissions, timetables, attendance, fee management, and parent communication.
💼 rapidit-cloudberalive
Zero-code automation layer on top of Workday HCM — enabling enterprises to automate HR workflows and bulk data ops without code.
🏃 vie-for-goodlive
Social sports platform enabling athletes to connect, compete, track performance, and support causes through sporting activity.
🇲🇾 asasiilive · gov
Government-grade multi-app platform for Malaysia — e-commerce, inventory, POS, and custom payment integrations at national scale.
3+Apps
20+Integrations
impact.diff
+12 additions
ACCOMPLISHMENTS.md+12 −0
1
+Built and delivered 35+ applications to production across diverse enterprise domains
2
+Individually engineered 8+ production-grade applications from architecture to deployment
3
+Orchestrated a seamless monolith-to-microservices migration with zero unplanned downtime
4
+Integrated multiple AMS platforms and third-party ecosystems for insurance workflows
5
+Boosted application performance and speed by 60% through targeted optimization
6
+Executed large-scale DB restructuring in production — zero downtime, full data integrity
7
+Scaled engineering team from 2 to 13+ engineers, built a culture of ownership and growth
8
+Reduced cloud infrastructure costs by 25% through strategic optimization
9
+Managed 40+ team members for onsite global projects — zero enterprise escalations
10
+Maintained 100% success rate with top enterprise clients — zero missed SLAs
11
+Contributed to OASES, a specialized aviation MRO and fleet management platform
12
+Led critical disaster recovery operations — 3 company-saving incidents, 0 data loss
incident-log
3 resolved
#INC-001
database
Production DB Corrupted by Faulty Application Logic
1–3h
Recovery
0
Data lost
A developer's logic error silently propagated bad writes across production data, corrupting records that enterprise clients depended on for live operations. The window to act without permanent data loss was narrow.
recovery.logstatus: RESOLVED
→Diagnosed root cause in minutes — traced corrupt writes to a logic_flaw in a recently deployed service; isolated affected data scope before further propagation
→Executed surgical rollback and data reconciliation, cross-referencing backup_snapshots with audit trails to restore integrity record by record
→Deployed patched logic layer to production while recovery was still in progress — closing the vulnerability before incident was declared resolved
→Established mandatory pre-deploy data_impact_reviews and automated write-pattern anomaly detection as permanent safeguards
#INC-002
outage
Total System Outage — Routing Failure & DB Collapse
<30m
Restored
0
SLA breach
Every system went dark. A cascading failure combining routing misconfiguration and DB connection pool exhaustion brought the entire platform to a halt — with enterprise clients active in real time.
recovery.logstatus: RESOLVED
→Stood up a war_room immediately; assigned parallel diagnostic tracks — one on routing layer, one on DB health — halving diagnosis time
→Identified routing_misconfiguration as primary trigger; pushed corrected config to load balancer within minutes, restoring partial traffic flow
→Resolved connection_pool_exhaustion by force-flushing stale connections and applying dynamic pool limits to prevent re-trigger under load surge
→All systems back online in under 30 minutes — below SLA thresholds — with full post-incident report to stakeholders the same day
#INC-003
infrastructure
AWS Infrastructure & Integration Architecture Failure
Min
Downtime
100%
SLA kept
An unexpected AWS-side failure, compounded by an architectural gap in integration failover, took down core production services. Enterprise client SLAs were directly at risk — with no guaranteed resolution timeline from AWS.
recovery.logstatus: RESOLVED
→Did not wait for AWS — immediately activated pre_built_failover_infra that had been proactively designed and kept warm for exactly this scenario
→Rerouted all production traffic to backup systems; restored critical integrations via pre_configured_fallback_endpoints, keeping clients operational throughout
→Coordinated with AWS Support in parallel to accelerate primary infrastructure recovery while backup kept business running without interruption
→Post-incident: hardened architecture with multi_region_redundancy and automated failover triggers — ensuring no single AWS failure can again threaten continuity
// Resilience is not luck — it is architecture. Each incident resulted in permanent systemic improvements: better observability, smarter failover design, and engineering processes that make the next crisis less likely and far less damaging.
integrations
30+ built
integrations.json
Agency Management Systems
AMS360BenefitPointApplied EpicSagittaNowCertsEVOVertafore Products
Payments & E-Signature
StripeDocuSign
Communication & Messaging
TwilioRingCentralSendGrid
Productivity & Automation
Google AppsZapier
Security & Auth
AWS CognitoPassport.jsOAuth 2.0 / JWT
Streaming & Queues
Apache KafkaRabbitMQAmazon SQSAmazon SNS
open an issue
contact-info.json
locationBangalore, Karnataka 560067
phone+91 73731 82108
linkedin/in/developer-jayabal-rajendran
medium@devloprjayabal
Open to opportunities. Exploring Director / VP of Engineering roles, technical advisory, and consulting. Response within 24h.
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