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Sebastian Nogara
Verified Expert in Engineering
Web Security Developer
Punta del Este, Maldonado Department, Uruguay
Toptal member since June 20, 2019
Bio
Sebastian architected and implemented the central booking system for GLOBA Co., Ltd.’s mai-ko.com, which facilitates experiences for 1,500+ daily guests across six locations in Japan. With a results-driven mindset, he ensures all engineering initiatives align with business objectives while maintaining strong security and system reliability.
Portfolio
GLOBA Co., Ltd. - Maikoya
Amazon Web Services (AWS), PostgreSQL, Django, Testing, Web Security
Denizen Cloud, Inc.
Node.js, Python 3, Django, JavaScript, Amazon Web Services (AWS), PostGIS
Audience Boost, Inc.
Amazon Web Services (AWS), Celery, Stripe, Django, Python 3
Experience
- SQL - 12 years
- Python - 10 years
- Django - 10 years
- SCSS - 6 years
- Docker - 5 years
- Pytest - 5 years
- React - 3 years
- Web Security - 2 years
Preferred Environment
Arch Linux, Git, Vim Text Editor
The most amazing...
...model I built integrated the EIA's Residential Energy Consumption Survey, solar potential, and incentives to estimate solar power investments for homeowners.
Work Experience
Technical Lead
2024 - PRESENT
GLOBA Co., Ltd. - Maikoya
- Secured the end-to-end deployment, security, and performance of a system supporting $30 million in annual sales.
- Provided direction for engineering handover to an external contractor post-acquisition, maintaining operational continuity as the organization scaled.
- Engineered and implemented the organization’s central booking system for managing six tourist venues across Japan (e.g., museums).
- Built an automated testing pipeline simulating the entire booking system to ensure correctness and prevent operational disruptions.
- Worked closely with non-technical staff to collaboratively design solutions, enabling teams to operate independently with minimal management overhead.
- Assumed responsibility for incident mitigation and security protocols, protecting both revenue and internal workflows.
Technologies: Amazon Web Services (AWS), PostgreSQL, Django, Testing, Web Security
Technical Lead
2022 - 2025
Denizen Cloud, Inc.
- Developed statistical models to support homeowner decision-making (e.g., solar power investment, property market trends).
- Sourced and collaborated with an SEO specialist to grow the pilot project’s organic traffic from zero to 70-100 daily sessions.
- Set up a geographic information system (GIS) to centralize data integration with U.S. counties and municipalities, ingesting and normalizing datasets on waste collection, water quality, and energy consumption.
- Assumed responsibility for the deployments and monitoring of the production environment.
- Implemented continuous integration, infrastructure health checks, and the initial automated test suite.
Technologies: Node.js, Python 3, Django, JavaScript, Amazon Web Services (AWS), PostGIS
Consultant
2020 - 2023
Audience Boost, Inc.
- Fast-tracked the implementation of core MVP features for a new business venture.
- Set up infrastructure and CI deployments for the new web application.
- Created a scripting environment for Facebook campaign automation.
Technologies: Amazon Web Services (AWS), Celery, Stripe, Django, Python 3
Technical Advisor
2019 - 2020
Virtual Medicine, LLC.
- Researched and implemented data models for Medicare procedure payment estimators.
- Created a database model supporting the business case and identified third-party integration points.
- Defined architecture and technical approach for the implementation of a mobile app and back-end services.
- Estimated development effort and software infrastructure costs.
- Collaborated with a senior project manager and a senior designer to create a software product proposal.
Technologies: Amazon Web Services (AWS), Kubernetes, Python
Technical Advisor (2018-2020), Senior Software Engineer (2017-2018), Software Engineer (2016-2017)
2016 - 2020
Influenster, Inc.
- Architected and implemented the "follow" feature, with push notifications currently serving over five million users.
- Re-implemented the user selection tool for product sampling campaigns, and reduced query latency from minutes to seconds.
- Drove to completion a graph database model to power fine-grained recommendations across the site.
- Built an in-house survey tool for product sampling market research campaigns.
- Implemented content algorithms such as trending and related products.
Technologies: Amazon Web Services (AWS), X (formerly Twitter) API, Google API, Instagram API, Facebook API, Amazon Simple Notification Service (SNS), AWS Lambda, Amazon Neptune, Amazon DynamoDB, Celery, RabbitMQ, Redis, PostgreSQL, Django REST Framework, Django, Python
Lead Software Engineer
2018 - 2019
Textual Relations AB
- Re-engineered and re-implemented a legacy Python codebase for fast iteration.
- Re-implemented lexicon database search for real-time lookups.
- Created a release process and implemented a fully automated CI pipeline for QA and deployments.
- Managed two remote developers, including onboarding.
- Assisted hiring decisions for software development positions.
Technologies: Celery, RabbitMQ, Jenkins, Google Cloud, Kubernetes, Docker, MySQL, REST, Django, Python
Software Developer
2015 - 2016
Bokio AB
- Built a C# to TypeScript data model class transpiler.
- Added currency conversion to the invoicing solution using the API of the Swedish central bank.
- Implemented integration with Toggl time tracking for the invoicing solution offered by the company.
- Developed an email delivery and tracking solution for invoices using the Mailgun API.
- Worked as a full-stack developer on new features as specified by product management.
Technologies: C#
Software Developer
2013 - 2015
Sophilabs
- Built a player with graphics overlay for public advertising screens using SDL, libVLC, and Chromium Embedded Framework.
- Developed a server monitoring analytics solution using Apache Cassandra for time series storage.
- Shipped the first-ever Android application delivered by the agency.
- Implemented multiple integrations with social media APIs for social listening and analytics.
- Built a customizable survey system using the Django web framework for a market research company.
Technologies: SDL, RabbitMQ, Redis, Apache Cassandra, PostgreSQL, Django, Python
Experience
Droidcast
https://github.com/snogaraleal/droidcastDroidcast is an Android library implementing a service for OGG Vorbis streaming. Although the Android media player does support OGG Vorbis, it doesn't provide live metadata from Vorbis comments. Droidcast uses the pure Java OGG Vorbis decoder JOrbis to play OGG streams, allowing you to listen to meta-data changes.
Adjax
https://github.com/snogaraleal/adjaxAdjax lets you call Python functions from JavaScript. Adjax is a simple AJAX-based RPC mechanism for Django that provides argument type validation and an extensible JSON serializer that allows you to plug in custom serialization types.
WBI Indicator Explorer
https://github.com/snogaraleal/wbiWBI is a tool for visualizing indicators from the World Bank Open Data API. Implemented in Play Framework and Google Web Toolkit. This project includes a rudimentary RPC via REST solution, as both back- and front-end are implemented in Java.
Education
2015 - 2018
Coursework Toward a Degree (150 ECTS) in Software Engineering and Management
Chalmers University of Technology, University of Gothenburg - Gothenburg, Sweden
Skills
Libraries/APIs
Instagram API, Google API, Stripe, SDL, libVLC, Facebook API, X (formerly Twitter) API, React, Node.js, Pandas, NumPy
Tools
Git, Vim Text Editor, ChatGPT, Pytest, RabbitMQ, Celery, Amazon Simple Notification Service (SNS), Apache Solr, Jenkins, Amazon Simple Queue Service (SQS)
Languages
Python, HTML, SCSS, CSS, JavaScript, Java, SQL, Python 3, C, C#, Gremlin, Erlang, Erlang (OTP)
Frameworks
Django, Django REST Framework, GWT, AngularJS, Ant Design
Paradigms
Object-oriented Programming (OOP), REST, Functional Programming, Testing
Platforms
Docker, Shopify, Arch Linux, AWS Lambda, Amazon Web Services (AWS), Android, Mailgun, Kubernetes, Amazon EC2
Storage
PostgreSQL, Redis, MySQL, Memcached, Cassandra, Google Cloud, Amazon S3 (AWS S3), Amazon DynamoDB, Relational Databases, PostGIS
Other
Web Security, Apache Cassandra, OAuth, Amazon Neptune, Concurrency, Business Processes, Research, Software Architecture, HTTP, APIs
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