Ship product
Carry a feature from product decision to production.
Build customer-facing interfaces alongside the APIs, data and deployment work they need.
Interfaces · APIs · data · integrations
Senior full-stack product and platform engineeringOpen to senior engineering roles
Justine Kizhakkinedath
Building complex product visions into scalable web systems.
I ship customer-facing features, improve API performance and resource use, and modernise the cloud and release systems beneath them. Working across layers means fewer hand-offs and clear ownership through production.
Where I add value
End-to-end ownership where product and platform meet.
I am most useful to founders and engineering teams that need one senior engineer to carry a problem across layers, make the trade-offs clear and stay accountable for the production result.
Stabilise systems
Fix the bottlenecks slowing the product or the team.
Trace latency and resource use, improve reliability and leave production behaviour easier to understand.
Latency · memory · reliability · observability
Modernise platforms
Move services without putting delivery at risk.
Plan cloud and runtime transitions around operating constraints, release safety and business cost.
Cloud migrations · containers · delivery systemsTechnical range
Comfortable moving through the whole production stack.
App EngineAWSAWS LambdaCypressDistributed servicesDockerEpicor ERPFastAPIFirebaseFlaskGCPIMAPJavaScriptKubernetesMongoDBMySQLNestJSNext.jsNode.jsPiniaPythonReactRedisSMTPTanStack QueryTypeScriptVue 3Vue.js
Production outcomes
01 / 04
Selected work
What I owned, changed and learned.
Each project shows the problem, my contribution and the outcome. Evidence labels distinguish production work from active experiments.
01Production work
Scaling a high-volume communications platform
Improve the performance and resource efficiency of APIs operating at more than 10 million requests per month.
- Scope
- Production API and service performance work at more than 10 million requests per month.
- My ownership
- Senior, frontend-heavy full-stack engineering with independent feature ownership and performance optimisation work.
Measured impact
- Average API latency reduced to under 2 seconds.
- Service memory consumption reduced to approximately 200 MB.
Self-reported · Employer confidentialHigh-volume API operationsSelf-reported · Employer confidentialAPI latency reductionSelf-reported · Employer confidentialService memory reduction
Review case study 02Production work
Secure email viewer and reply system
Third-party email content needed to remain useful and interactive without leaking malicious code, styles or scripts into the host CRM.
- Scope
- A Gmail-like email preview and reply experience embedded securely inside a CRM.
- My ownership
- Owned frontend delivery and contributed across the supporting Node.js and NestJS services.
Measured impact
- Resolved critical XSS and CSS-leak risks; the October 2024 résumé reports a security-risk reduction above 90%.
- Reduced support tickets related to email navigation by 50%.
Self-reported · Employer confidentialEmail preview security isolationSelf-reported · Employer confidentialEmail navigation support-ticket reduction
Review case study 03Production work
Migrating services to Kubernetes infrastructure
Move production services from App Engine to a containerised Kubernetes architecture.
- Scope
- A service migration from App Engine to NestJS, Docker and Kubernetes.
- My ownership
- Contributed to the migration; the resulting cost reduction is attributed to the broader migration rather than solely to one engineer.
Measured impact
- The migration contributed to an approximately 80% reduction in infrastructure costs.
Self-reported · Employer confidentialService memory reductionSelf-reported · Employer confidentialInfrastructure cost reduction
Review case study More work
Additional projects and active explorations.
Page 1 of 3
Production workVue 3 · Pinia · TanStack Query
Unified email and SMS composer
A shared CRM composer for email and SMS with attachments, templates, tokens and cross-editor compatibility.
Review projectProduction workNode.js · OAuth · Webhooks
Extensible conversation-provider framework
A backend framework for adding native communication channels through OAuth apps and webhooks.
Review projectProduction workReact · Next.js · AWS Lambda
Amway scalable e-commerce platform
A scalable commerce experience supporting personalised customer journeys.
Review projectProduction workReact · Next.js · Epicor ERP
PENCOM e-commerce platform enhancement
Commerce improvements for catalog access, order processing and ERP-connected workflows.
Review projectExperience
Production engineering roles since 2019.
- Oct 2024 → PresentCurrent role
Full-time
Full Stack Developer
Verto
Role summary
Current full-stack development role. LinkedIn confirms the position and start date; employer-specific scope and outcomes are not public.
- Apr 2022 → Jun 20242 yrs 3 mos
Full-time
SDE II
HighLevel
Role summary
Worked on HighLevel's Conversations product across frontend and backend systems, delivering CRM communication features, extensible channel integrations and performance improvements.
Responsibilities
- Built a unified email and SMS composer with attachments, previews, templates, custom tokens and compatibility across Gmail, TinyMCE and Twilio editing workflows.
- Developed a secure email preview and reply experience with sandboxed content, attachment previews, condensed views and IMAP/SMTP synchronisation.
- Designed an extensible conversations-provider architecture using OAuth apps and webhooks so internal and third-party teams could add new communication channels.
- Refactored Conversations APIs, database queries and endpoints in collaboration with frontend teams.
Outcomes
- Reduced average API latency by more than 70%, from approximately 5-6 seconds to under 2 seconds, across workloads above 10 million monthly requests.
- Reduced application memory consumption by more than 60%.
- Unified channel-specific composer modules into one interface, reducing associated technical debt by more than 80%.
- Reduced support tickets related to email navigation by 50%.
TypeScript · JavaScript · Vue 3 · Pinia · TanStack Query · React · Node.js · NestJS · Python · Firebase · MongoDB · MySQL · Redis · GCP · Kubernetes · Cypress
- Dec 2019 → Mar 20222 yrs 4 mos
Full-time
Member of Technical Staff
Mindstix Software Labs
Role summary
Built and maintained client- and server-side applications for e-commerce programmes, including personalised shopping experiences, catalog access and order-processing integrations.
Responsibilities
- Led full-stack delivery for a scalable Amway e-commerce experience using React, Next.js and AWS Lambda.
- Enhanced the PENCOM e-commerce platform and integrated catalog and order-processing workflows with Epicor ERP.
- Collaborated across product and engineering teams to optimise application behaviour and user experience.
Outcomes
- Delivered scalable e-commerce work estimated in the October 2024 résumé to serve more than 10,000 B2B customers, alongside a larger B2C audience.
Vue.js · React · Next.js · Python · Flask · FastAPI · MongoDB · AWS · AWS Lambda · Epicor ERP
Engineering notes
How I approach production engineering.
Notes on performance, platform migrations and release decisions.
Browse all notes →Production engineering · Release systems
[Test] Debugging a slow production release
A dummy engineering note for checking the blog index, topic filters, reading metadata and first-party article layout.
Contact
Need a senior engineer who can own the problem across layers?
I am interested in senior full-stack, product and platform roles with end-to-end ownership, production responsibility and direct access to product decisions.