Peter Khalko

Full Stack Engineer

Maharashtra, India7 yrs 4 mos experience

Key Highlights

8+ years of full stack development experience
Expert in modern cloud-native architecture
Proven track record in cost reduction and platform agility

Stackforce AI infers this person is a Full Stack Developer specializing in cloud-native solutions for SaaS and EdTech industries.

Contact

peter.khalko@neosofttech.com LinkedIn

Skills

Core Skills

React.jsNode.jsMongodbReact

Other Skills

API IntegrationsAWSAWS LambdaAmazon Web Services (AWS)AngularBootstrapCI/CDChart.jsEventBridgeJavaScriptMicroservicesPostgreSQLREST APIsSCSSTailwind CSS

About

Full Stack Developer with 8+ years of experience designing, developing, and optimizing scalable web applications across logistics, ERP, EdTech, and SAS domains. I specialize in modern cloud-native architecture using the MERN stack (MongoDB, Express, React, Node), and deploy robust backend services on AWS (Lambda, SQS, EC2, S3, EventBridge).Currently leading full stack initiatives where I migrated legacy infrastructure from .NET/MSSQL to modern stacks — reducing infrastructure costs by 30% and enhancing platform agility.Tech Specialties:- Frontend: React.js, TypeScript, Vuejs, Tailwind CSS, SCSS- Backend: Node.js, Express.js, Feathers.js- Databases: PostgreSQL, MongoDB, redis - Cloud: AWS Lambda, S3, SQS, SNS, EventBridge, CloudWatch- DevOps: Jenkins, EBS, EC2, CI/CD, Auto scaling group instances.I lead full project lifecycles—architecture, backend, frontend, and DevOps—to deliver scalable, cloud-native solutions that align with complex business requirements at PAN India level. Actively pursuing AWS Developer certification to level up cloud-native delivery.Let’s connect if you're hiring for full stack, AWS, or microservices engineering roles — or just want to geek out about system design | Serving Notice Period

Experience

Kaiser permanente

Senior IT Engineer Applications-Fullstack

Oct 2025 – Present · 5 mos · Pune, Maharashtra, India · Hybrid

Development of scalable web applications using React.js, Node.js, and AWS/Azure services to modernize healthcare systems.
Architecting and maintaining end-to-end solutions with microservice-based backend and responsive UI frameworks for high-performance user experience.
Collaborating cross-functionally with global teams across DevOps, QA, and Product to streamline CI/CD pipelines and optimize release cycles.
Implementing secure authentication, API integrations, and data caching strategies to enhance system reliability and reduce latency.
Driving code quality, system monitoring (CloudWatch), and performance tuning initiatives to ensure stability in production environments.
Mentoring junior engineers and establishing best practices for clean code, testing, and version control (GitHub, Jira) within agile working model.

React.jsNode.jsAWSMicroservicesCI/CDAPI Integrations

Neosoft

Senior Software Engineer

Feb 2024 – Oct 2025 · 1 yr 8 mos · Pune, Maharashtra, India · On-site

Leading full stack delivery of a critical B2C logistics portal.
Migrated legacy .NET and MSSQL infrastructure to React.js, Node.js, and PostgreSQL — reducing infra costs by 30%.
Refactored cron-based backend logic to AWS Lambda + EventBridge, increasing scalability and reducing server compute usage by 25%.
Designed microservices-based architecture with event-driven AWS workflows (SQS, SNS, S3) to handle high-volume transactions.
Built and optimized internal COD finance portal used daily by hundreds of regional teams.
Aligned backend systems with Agile, VAPT, and audit-compliance standards.
Coordinating with DevOps teams to deploy and monitor production workloads on AWS (EC2, ASG, CloudWatch).

React.jsNode.jsPostgreSQLAWS LambdaEventBridgeMicroservices

Valueadd softtech & systems pvt ltd

Associate Software Engineer

Jan 2022 – Feb 2024 · 2 yrs 1 mo · Pune, Maharashtra, India

Sole full stack developer for a Canadian ERP partner, working in a microservices environment.
Built and deployed Angular 15-based UI with SCSS and PrimeNG components.
Designed backend services using Node.js and MongoDB;
Created interactive dashboards with Chart.js.
Implemented Cron jobs for automated tasks, including reading data from Excel files and Enabled CRUD operations on a scalable range of 1 to 100k records.
Reduced report generation time from ~3 hours to <45 minutes using AWS Lambda and S3 triggers.
Implemented dynamic data driven visual charts creation in pdf feature in the backend Node environment and shoot over mail.

AngularNode.jsMongoDBAWS LambdaChart.js

Infosys

Integration Specialist

Oct 2018 – Dec 2021 · 3 yrs 2 mos · Pune, Maharashtra, India

Coordinated directly with UK-based teams to deliver UI/UX features using Bootstrap, Vanilla JS, and React.
Developed REST APIs using Node.js and integrated with frontend modules.
Contributed to Agile ceremonies, version control (Git), and QA pipelines.

BootstrapReactNode.jsREST APIs