Dear Hiring Manager, I’ve reviewed the job description and am excited to apply for this opportunity. With over 14 years of experience in full-stack development, I specialize in building scalable, secure, and high-performance systems. I am proficient in a wide range of technologies, including Node.js, React, Next.js, and various backend frameworks and databases (e.g., PostgreSQL, MongoDB). I have extensive experience in developing robust web applications, creating efficient APIs, and integrating third-party services. I am comfortable working remotely and thrive in fast-paced, collaborative environments where I can continuously adapt to new challenges. I look forward to discussing how my skills and experience align with your team’s goals.

Steven Gwillim

Dear Hiring Manager, I’ve reviewed the job description and am excited to apply for this opportunity. With over 14 years of experience in full-stack development, I specialize in building scalable, secure, and high-performance systems. I am proficient in a wide range of technologies, including Node.js, React, Next.js, and various backend frameworks and databases (e.g., PostgreSQL, MongoDB). I have extensive experience in developing robust web applications, creating efficient APIs, and integrating third-party services. I am comfortable working remotely and thrive in fast-paced, collaborative environments where I can continuously adapt to new challenges. I look forward to discussing how my skills and experience align with your team’s goals.

Available to hire

Dear Hiring Manager,
I’ve reviewed the job description and am excited to apply for this opportunity.
With over 14 years of experience in full-stack development, I specialize in building scalable, secure, and
high-performance systems.
I am proficient in a wide range of technologies, including Node.js, React, Next.js, and various backend
frameworks and databases (e.g., PostgreSQL, MongoDB).
I have extensive experience in developing robust web applications, creating efficient APIs, and
integrating
third-party services.
I am comfortable working remotely and thrive in fast-paced, collaborative environments where I can
continuously adapt to new challenges.
I look forward to discussing how my skills and experience align with your team’s goals.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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Language

English
Fluent

Work Experience

Senior Software Engineer at PHC
February 1, 2022 - Present
Led a team to develop an efficient SaaS e-commerce platform using Node.js and Nest.js, integrating GraphQL APIs for efficient data handling. Implemented authentication middleware and error handling; used Entity Framework Core for database access. Optimized PostgreSQL and MongoDB queries; integrated Apollo Client in Angular to consume GraphQL endpoints, and employed Goroutines and Channels for concurrent processing. Built and maintained Blazor-based single-page applications, with UI enhancements using Svelte, Unity, and Vue.js. Implemented SEO best practices with Schema.org, improving organic search rankings by 35%. Managed AWS services including S3, RDS, and EC2 for high availability and scalability. Used Bootstrap and Tailwind to rapidly develop responsive UIs. Implemented serverless components on AWS (Lambda, API Gateway, OpenSearch) and integrated Salesforce AppExchange tools. Introduced NLP/LLM integrations for automation and insights, and built RAG pipelines with OpenSearch/Docume
Senior Full Stack Engineer at Olivine
October 1, 2018 - December 1, 2021
Led full-stack development for large-scale healthcare applications, focusing on backend systems in Java and Hibernate; designed HL7 data exchange interfaces; built microservices with Golang and Ruby on Rails; integrated Temporal for workflow orchestration and fault tolerance. Deployed serverless and cloud-based solutions on AWS and migrated services to Azure AKS. Built iOS and Android apps with React Native, integrating AI capabilities with LLMs and NLP models for automation and insights. Secured services with JWT/OAuth2 and Vault, contributed to enterprise-grade security, and implemented Temporal-driven workflows.
Full Stack Developer at Infuse
July 1, 2014 - August 1, 2018
Developed a suite of web applications using Node.js and Express.js; built SPAs with Angular and Vue.js; implemented state management with Vuex/Pinia; real-time functionality with Meteor.js and WebSocket. Delivered full-stack development using .NET and Blazor; deployed on Azure AKS; integrated Drupal for CMS needs; built ETL pipelines with .NET and SSIS; implemented REST APIs with OAuth2/JWT security; performed performance tuning and load testing; automated deployments with Jenkins and Docker; collaborated with UI/UX teams and developed WordPress plugins.
Web Developer at Kaleidico
March 1, 2012 - May 1, 2014
Delivered large-scale SPAs with React and GraphQL; built real-time health data pipelines using HL7 for lab data integration. Integrated backend services with PHP/Laravel and WordPress, optimized server-side performance, and improved API response times. Developed front-end applications using React, MobX, CSS, Ant Design; deployed scalable apps on AWS; created internal apps for Relationship Managers; emphasized SEO via SSR with Angular Universal and Temporal workflow integration in .NET apps.

Education

Bachelor’s degree, Computer Science at Simon Fraser University
January 1, 2007 - January 1, 2011
Bachelor's degree in Computer Science at Simon Fraser University
January 1, 2007 - January 1, 2011
Bachelor's degree at Simon Fraser University
January 1, 2007 - January 1, 2011

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Professional Services, Healthcare, Education, Media & Entertainment

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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