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I am Temciuc Valentin, a Senior Full Stack Software Engineer with over a decade of experience building scalable web platforms across healthcare, IoT, and e-commerce. I specialize in backend engineering with Node.js, TypeScript, Go, Java (Spring Boot), and Python (FastAPI), focusing on robust RESTful APIs, data-driven systems, and AI-assisted forecasting to support predictive analytics and informed business decisions. I’ve delivered multi-tenant architectures with RBAC, real-time IoT data ingestion, and HIPAA-compliant healthcare workflows. I’m proficient in PostgreSQL design and optimization, AWS deployments, Docker, and CI/CD. My track record includes reliable microservices, operational dashboards, distributed messaging, and secure backend solutions that scale with business needs.…I am Temciuc Valentin, a Senior Full Stack Software Engineer with over a decade of experience building scalable web platforms across healthcare, IoT, and e-commerce. I specialize in backend engineering with Node.js, TypeScript, Go, Java (Spring Boot), and Python (FastAPI), focusing on robust RESTful APIs, data-driven systems, and AI-assisted forecasting to support predictive analytics and informed business decisions. I’ve delivered multi-tenant architectures with RBAC, real-time IoT data ingestion, and HIPAA-compliant healthcare workflows. I’m proficient in PostgreSQL design and optimization, AWS deployments, Docker, and CI/CD. My track record includes reliable microservices, operational dashboards, distributed messaging, and secure backend solutions that scale with business needs.

Temciuc Valentin

Full Stack Developer, Web Developer, Back-End Developer, +3

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I am Temciuc Valentin, a Senior Full Stack Software Engineer with over a decade of experience building scalable web platforms across healthcare, IoT, and e-commerce. I specialize in backend engineering with Node.js, TypeScript, Go, Java (Spring Boot), and Python (FastAPI), focusing on robust RESTful APIs, data-driven systems, and AI-assisted forecasting to support predictive analytics and informed business decisions. I’ve delivered multi-tenant architectures with RBAC, real-time IoT data ingestion, and HIPAA-compliant healthcare workflows. I’m proficient in PostgreSQL design and optimization, AWS deployments, Docker, and CI/CD. My track record includes reliable microservices, operational dashboards, distributed messaging, and secure backend solutions that scale with business needs.…I am Temciuc Valentin, a Senior Full Stack Software Engineer with over a decade of experience building scalable web platforms across healthcare, IoT, and e-commerce. I specialize in backend engineering with Node.js, TypeScript, Go, Java (Spring Boot), and Python (FastAPI), focusing on robust RESTful APIs, data-driven systems, and AI-assisted forecasting to support predictive analytics and informed business decisions. I’ve delivered multi-tenant architectures with RBAC, real-time IoT data ingestion, and HIPAA-compliant healthcare workflows. I’m proficient in PostgreSQL design and optimization, AWS deployments, Docker, and CI/CD. My track record includes reliable microservices, operational dashboards, distributed messaging, and secure backend solutions that scale with business needs.

Available to hire

I am Temciuc Valentin, a Senior Full Stack Software Engineer with over a decade of experience building scalable web platforms across healthcare, IoT, and e-commerce. I specialize in backend engineering with Node.js, TypeScript, Go, Java (Spring Boot), and Python (FastAPI), focusing on robust RESTful APIs, data-driven systems, and AI-assisted forecasting to support predictive analytics and informed business decisions.

I’ve delivered multi-tenant architectures with RBAC, real-time IoT data ingestion, and HIPAA-compliant healthcare workflows. I’m proficient in PostgreSQL design and optimization, AWS deployments, Docker, and CI/CD. My track record includes reliable microservices, operational dashboards, distributed messaging, and secure backend solutions that scale with business needs.

Skills

Experience Level

Expert

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Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Romanian, Moldavian, Moldovan

Advanced

Work Experience

Senior Software Engineer at NHS Digital

October 1, 2023 - November 1, 2025

Built scalable marketplace web applications using React, Ember.JS, Ruby on Rails and Python/Django; developed and maintained GraphQL and REST APIs; implemented microservices for bookings, payments, and notifications; built admin and host dashboards; optimized performance with Redis and Elasticsearch; designed and managed PostgreSQL/MySQL databases; deployed on AWS with Docker, Kubernetes, and CI/CD pipelines; collaborated cross-functionally with designers, product managers, QA, security, and accessibility teams.

Senior Software Engineer at Spire Healthcare Group PLC

March 1, 2022 - August 1, 2023

Designed and developed REST APIs using ASP.NET, Java Spring Boot, and TypeScript-based services; implemented Spring Security-based authentication and RBAC; enhanced payout and scheduling logic; built mobile-optimized web interfaces; integrated WalletConnect-based secure wallet flows; designed Go-based on-chain read/transaction layers with high success rates in test/staging.

Senior Full Stack Engineer at United Hardscapes Inc

June 1, 2018 - February 1, 2022

Built backend services with NestJS/TypeScript; developed reusable UI components with Angular and React; designed scalable API architecture with high uptime; set up GitHub Actions for CI/CD, reducing release time; deployed on AWS (EC2, S3, CloudFront) with performance improvements and CDN caching; contributed to API performance improvements and robust error handling; participated in agile ceremonies.

Junior Full Stack Developer at Scalapay Italy

October 1, 2016 - May 1, 2018

Designed search result UI components with CodeIgniter MVC, AJAX and Vue; developed backend indexing and search services with Laravel; implemented search suggestions and related product recommendations; performed performance/load testing for high-traffic e-commerce sites; maintained admin tools for adjusting search relevance and ranking.

Senior Software Engineer at CLEAR HEALTH PASS

March 1, 2024 - January 1, 2026

Developed backend APIs using Node.js and Python (FastAPI) to support wound graft workflows, distributor hierarchies, and patient management systems. Implemented role-based access control across distributors, sales reps, doctors, finance, shipping, IVR, and admin users. Designed and optimized PostgreSQL schemas and indexing strategies, improving average API response time by ~20%. Built React and TypeScript frontend components for operational dashboards and workflow tracking. Created a payment trend dashboard with historical data visualization and AI-assisted payment volume forecasting. Integrated Kafka-based messaging for asynchronous workflow updates, reducing processing delays by ~15%. Containerized backend services with Docker and supported Kubernetes-based deployments. Deployed and maintained services on AWS, contributed to CI/CD automation pipelines, supported WordPress marketing site, and used ClickUp for sprint planning and cross-team collaboration.

Senior Software Engineer at ZEROSPEC

March 1, 2021 - August 1, 2024

Developed backend services in Go and Spring Boot for an IoT-based fuel tank monitoring and delivery management platform. Built ingestion services to validate and persist real-time telemetry data from connected tank sensors, ensuring reliable data flow. Designed REST APIs to support monitoring dashboards, alert notifications, and delivery scheduling features. Modeled and maintained PostgreSQL schemas for device metadata, operational records, and historical sensor data. Improved dashboard performance by optimizing SQL queries and indexing strategies, increasing data retrieval speed by ~22% and reducing update latency by ~16%. Enhanced validation and error-handling logic, reducing data inconsistencies by ~15% and improving overall system stability. Deployed and maintained services on AWS, supported Docker-based development and production deployments, collaborated on release validation and system stability efforts, and analyzed customer data using AI-based tools to generate operational ins

Senior Software Engineer at UNITED HARDSCAPES INC

June 1, 2018 - February 1, 2021

Built backend services using NestJS and TypeScript to support project management, quoting, and payment workflows, designing and documenting REST APIs with Swagger. Improved API performance by optimizing database queries and standardizing validation and error handling, achieving ~25% faster response times and reducing recurring integration issues by ~18%. Implemented CI/CD pipelines using GitHub Actions and supported AWS infrastructure updates, reducing manual deployment effort by ~35%. Collaborated with frontend developers in Agile sprints, participating in planning, estimation, and peer code reviews to maintain system reliability and workflow efficiency.

Junior Full Stack Developer at SCALAPAY

October 1, 2016 - May 1, 2018

Developed dynamic product search and filtering features using CodeIgniter, AJAX, and Vue.js. Built backend indexing services in Laravel for product categorization and keyword search. Optimized queries and caching strategies, improving peak performance by ~20%. Enhanced search result relevance, increasing product discovery engagement by ~15%. Assisted with load testing and query optimization, reducing peak-time delays by 17%. Maintained internal tools for search configuration and ranking adjustments.