Open to new opportunities

Hi, I'mGuillermo.

Senior Software Engineer

10+ years crafting high-quality web applications — from ideas to production — owning every stage of the process: architecture, development, deployment, and iteration.

View Projects About Me Download Resume

10+Years Experience

30+Projects Shipped

4Certifications

3×Employee of the Quarter

About Me

Engineering software that solves real problems

Senior Software Engineer with 10+ years of experience turning ideas into scalable, high-quality, maintainable, robust, and production-ready systems — taking full ownership from architecture design and development through deployment and iteration. Experienced across the full stack — spanning frontend, backend, databases, APIs, and cloud platforms. Strong problem-solving abilities and a collaborative mindset enable me to lead projects, tackle complex technical challenges, and ship reliable solutions under Agile methodologies. Committed to continuous learning and to adopting AI tools that empower teams to work smarter and improve productivity, code quality, and delivery speed. What motivates me most is the combination of meaningful impact — shipping things people actually rely on — hard problems worth solving, and continuous growth as an engineer. Always open to the right Senior Software Engineer opportunity — remote-first, startup or enterprise — where what gets shipped genuinely matters.

Day-to-day responsibilities

Collaborate with product managers and cross-functional teams to define requirements and coordinate delivery

Design scalable system architectures for production-grade applications

Design and own REST and GraphQL APIs

Define data models, optimize queries, and own database schema design decisions

Provision and manage cloud infrastructure on GCP and AWS

Set up monitoring, logging, and alerting to ensure production observability

Diagnose and resolve production incidents, driving root cause analysis to prevent recurrence

Write high-quality, testable, maintainable, and performant code

Implement testing strategies across unit, integration, and E2E layers

Conduct code reviews to ensure coding standards and overall quality

Identify and address technical debt, balancing refactoring with feature delivery

Implement and maintain CI/CD pipelines and DevOps best practices

Participate in Agile ceremonies and lead technical planning sessions to break down work into sprints

Provide mentorship and technical guidance to junior developers

Stay current with emerging technologies, tools, and engineering trends

Core Technologies

AI Tools

Professional Experience

Career

6+ years as a Senior Engineer, 10+ years total.

06/23 – Present

Remote

Senior Software Engineer (Full Time)

Led end-to-end development of Bid Cloud, a real-time SaaS platform for live online auctions featuring video streaming, payment processing, and invoice management.
Owned system architecture and led technical planning — defining application structure, breaking requirements into sprint-ready tasks, and enforcing code quality through regular code reviews.
Designed REST APIs and Firestore data models to support real-time bidding, payment processing, and invoice workflows — balancing low-latency access patterns with the event-driven nature of live auctions.
Established testing practices from scratch — covering unit, integration, and E2E tests — ensuring reliability and confidence across the full application lifecycle.
Provisioned and managed GCP infrastructure from scratch — environments, IAM policies, and storage — and configured monitoring and alerting to maintain reliability for a live, real-time auction platform.
Diagnosed and resolved production incidents in a live-event context — triaging issues mid-auction, shipping hotfixes under time pressure, and documenting root causes to prevent recurrence.
Implemented CI/CD pipelines with GitHub Actions, replacing manual deployment processes and improving code quality and release speed.
Configured and deployed an SMTP server with SPF, DKIM, and DMARC, ensuring email deliverability and security compliance.

TypeScriptReact.jsNext.jsNode.jsFirebaseGoogle Cloud PlatformStripeCI/CD

Abstract Development Studio S.A.

10/21 – 05/23

Remote

Senior Software Engineer (Full Time)

Led development of 8 projects — including a subscription-based headless CMS, a mobile meal-planning app, and SaaS platforms — from conception to production for clients in Germany, on time and within budget.
Drove architecture and tech stack decisions across all 8 projects — translating client requirements into structured sprints, task breakdowns, and estimates, and enforcing engineering standards through regular code reviews.
Designed REST APIs and data models across all 8 projects — adapting schemas and contracts to each client's domain, from headless CMS to meal planning to SaaS, across PostgreSQL, MongoDB, Firestore, and Elasticsearch.
Implemented and standardized testing practices across all 8 projects, covering unit, integration, and E2E tests to ensure consistent quality and delivery confidence.
Provisioned and managed cloud infrastructure across GCP and AWS for 8 separate production environments, configured per-project monitoring and alerting, and led incident response — diagnosing root causes, shipping hotfixes, and documenting learnings.
Implemented security and compliance controls — auth flows, RBAC, and data validation — tailored to each project's requirements.
Mentored junior developers, increasing team velocity and code quality.
Built CI/CD pipelines with GitLab CI/CD from scratch, automating deployments to reduce release times and enforce consistent engineering standards across all projects.

TypeScriptPythonVue.jsReact.jsNode.jsDjangoPostgreSQLGoogle Cloud Platform

01 Digital Age

10/16 – 10/21

PromotedOn-site

Software Engineer (Full Time) → Senior Software Engineer (Full Time)

Developed features, educational resources, and tools for Onecampus, Onefaculty, and Learning Series, serving Laureate's network of 80+ universities across 29 countries.
Migrated 7+ web applications and component libraries from AngularJS to Angular, improving performance and maintainability.
Transitioned from monolithic to microservices architecture, enabling independent deployments, improving scalability, maintainability, and system reliability.
Developed a shared Angular component library adopted across 5+ projects, standardizing UI and accelerating development.
Contributed to technical planning and code reviews across a large engineering team — defining sprint scope, breaking down features, and maintaining consistent engineering standards.
Designed REST APIs and data models for Onecampus, Onefaculty, and Learning Series — spanning PostgreSQL, MongoDB, Firestore, and Elasticsearch — supporting educational workflows for 80+ universities.
Wrote and maintained unit, integration, and E2E tests across Onecampus, Onefaculty, and Learning Series — enabling safe AngularJS-to-Angular migrations and reliable deployments across the platform.
Provisioned and managed cloud infrastructure across GCP and AWS for an enterprise educational platform, configured monitoring and observability tooling, and responded to production incidents — root cause analysis, hotfixes, and incident documentation.
Implemented security and compliance controls (auth flows, RBAC, data validation) and contributed to internationalization and accessibility for a platform serving students and faculty across 29 countries.
Promoted from Software Engineer to Senior Software Engineer, reflecting sustained impact on team output, code quality, and project delivery.
Recognized as Employee of the Quarter three times.

TypeScriptAngularPythonNode.jsDjangoFlaskPostgreSQLGoogle Cloud Platform

Laureate International Universities

05/16 – 09/16

On-site

IT Software Developer (Internship)

Developed a Remote Attendance System and a PBX Management System, automating manual workflows and reducing operational errors.

JavaScriptHTMLCSSAngularNode.jsLinuxGitGitHub

Laureate International Universities

Main Projects

Work

A selection of products I've designed, built, and shipped.

Bid Cloud

Online auction platform for companies to showcase products and run live auctions. Features: create auction, payment management, invoice management, live streams, public/private auctions, Google login.

TypeScriptReact.jsNext.jsNode.jsFirebaseGoogle Cloud PlatformStripeCI/CD

Abstract Development Studio S.A.

SIGS DATACOM GmbH

German online tech magazine with a headless CMS for authors, subscription-based premium content via Stripe/PayPal, personalized feeds, and social features.

TypeScriptPythonVue.jsReact.jsNode.jsDjangoPostgreSQLGoogle Cloud Platform

01 Digital Age

Money Manager

Personal finance web app for tracking income and expenses across custom categories, managing budgets with flexible periods (weekly, monthly, quarterly, yearly), and setting savings goals with priority levels. Features interactive charts, data export (CSV & PDF), and secure authentication.

TypeScriptReact.jsNext.jsNode.jsPostgreSQLGoogle Cloud PlatformCI/CDTesting

Personal Project

Education

Background

2012 – 2017

Systems Engineering — Bachelor's Degree

Graduated with cum laude honors (89%). 5-year program.

Universidad Nacional Autónoma de Honduras (UNAH)

2006 – 2011

High School Technical Degree in Computing

Instituto España Jesús Milla Selva

Skills

What I Bring to the Table

A comprehensive overview of my technical toolkit and professional competencies built over 10+ years.

Languages

JavaScriptTypeScriptPythonHTMLCSS

Frameworks & Libraries

Next.jsReact.jsVue.jsAngularNode.jsExpress.jsDjangoFlaskTailwind CSS

Databases

PostgreSQLMySQLMicrosoft SQL ServerMongoDBCloud Firestore

Cloud & DevOps

Google Cloud PlatformFirebaseAmazon Web ServicesDockerLinuxServerless FrameworkCI/CD

Tools & Integrations

REST APIsGraphQLGitGitHubGitLabTestingElasticsearchStripeAuth0OpenAIAnthropic

Architecture & Practices

Software ArchitectureMicroservicesAgile Methodologies

AI Tools

Claude CodeOpen CodeCodexGitHub CopilotAntigravityCursor

Soft Skills

Problem SolvingTeamworkCommunicationTime ManagementCritical ThinkingSelf LearningAdaptation

46+

Technical Skills

Soft Skills

10+

Years Experience

Languages

Communication

Spanish

Native speaker with complete fluency in all contexts

C2 — Native

English

Comfortable with technical documentation, code review, and cross-team collaboration

B2 — Upper Intermediate

Productivity & AI

AI-Powered Development

I integrate AI tools into my daily workflow to enhance productivity, code quality, and delivery speed.

AI Coding Tools

Agentic coding assistants and IDE integrations I use to write, review, and ship code faster.

Claude CodeOpen CodeCodexGitHub CopilotAntigravityCursor

Certifications

Credentials

Professional certifications validating my expertise in cloud technologies and agile methodologies.

2020

Associate Cloud Engineer

Foundational expertise in deploying and managing applications on Google Cloud Platform.
Experience with Firebase, Cloud Firestore, and core GCP services.
Credential ID: 26797832

Google Cloud PlatformFirebase

Google Cloud Platform

2021

Professional Cloud Architect

Advanced expertise in designing and managing enterprise-scale cloud solutions on GCP.
Proficient in cloud architecture patterns, security, and scalability best practices.
Credential ID: 27349109

Google Cloud PlatformFirebase

Google Cloud Platform

2021

Certified SAFe® 5 DevOps Practitioner

Expertise in applying DevOps practices within the Scaled Agile Framework.
Advanced knowledge in CI/CD pipelines and enterprise-scale software development.

CI/CDAgile Methodologies

SAFe — Scaled Agile, Inc.

2021

Certified SAFe® 5 Product Owner/Product Manager

Comprehensive understanding of product ownership in Agile environments.
Expert knowledge in backlog management, user story creation, and stakeholder collaboration.

Agile Methodologies

SAFe — Scaled Agile, Inc.

Testimonials

What people say

Colleagues and managers I've had the pleasure of working with.

“

Guillermo is an exceptionally talented professional with a keen eye for detail and an unwavering commitment to excellence. During our time working together, I was consistently impressed by his ability to tackle complex challenges with ease and deliver results that exceeded expectations.

Guillermo's expertise in software development is truly remarkable and he has a unique ability to think outside the box and come up with innovative solutions. He is a highly collaborative team player, always willing to lend his expertise and support.

I highly recommend Guillermo for any role that requires a talented, dedicated, and highly motivated professional.

Sergio Morazán

Founder at 01 Digital Age

“

I am pleased to recommend Guillermo Salgado, who has been an invaluable member of our team. As a Senior Software Engineer, Guillermo has consistently delivered exceptional work, demonstrating his deep technical expertise and strong problem-solving skills.

He has been instrumental in leading several critical projects, always delivering high-quality code on time and within budget. His attention to detail, commitment to excellence, and collaborative approach make him a true asset.

Jan Ahlborn

PM/PO at 01 Digital Age

“

Guillermo's attention to detail, problem-solving abilities, and commitment to delivering high-quality work were truly impressive. He played a significant role in helping us achieve our goals, and his ability to communicate technical information clearly made him an excellent mentor and collaborator.

Guillermo's passion for technology and dedication to excellence make him a valuable asset to any team.

Mary Martinez

HR Manager at 01 Digital Age

Recognition

Achievements

A few highlights throughout my career.