Sebastián Tello work email
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Sebastián Tello personal email
Software engineer with vast experience in development, security, networking, infrastructure and team leading. Out-of-the-box thinker, I love solving problems and I don't define myself in terms of a particular role or technology. I'm an advocate of clean code and TDD, which I teach through mentoring and pair-programming.Some of the many technologies I have worked with:Programming languages: JS/Typescript, Golang, Java, Python, Java, Ruby, Bash, among others.Infra: AWS (EC2, RDS, CloudFront, S3, Lambda, Cloudwatch, Dynamo, SQS, Cognito, EventBridge, etc), Kubernetes, Envoy, Docker, Splunk, Datadog, SignalFX, Elastic SearchOS: Linux, OS X, Windows, xBSDI'm author and co-author or many libraries and tools used by companies around the globe to implement contract-testing of their micro-services architectures: swagger-mock-validator, wiremock-pact-generator, openapi-diff, and json-schema-diff. The latter resulting in patents US11620171B2 and US11675752B2.I played a key role as part of a highly technical team that designed and rolled-out a service mesh network (ingress and egress proxies) across thousands of micro services at Atlassian with zero incidents.In the past I've worked in software security: penetration testing, exploit writing, and development of automated exploitation frameworks. Before that, I worked for years leading teams of automation and performance testing, developing frameworks and libraries. I enjoy learning new things constantly, work in teams, mentor, and solve complex problems. I'm a team player promoting enjoyable, safe, and collaborative working environments.
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Senior DeveloperAtlassian May 2017 - PresentSydney, New South Wales, Australia -
Senior Quality EngineerAtlassian Sep 2016 - May 2017Sídney Y Alrededores, AustraliaWorked closely with various platform micro-services teams improving dev-loops speed and quality.Part of a team of high-skilled developers working on platform tools and services aiming to improve the development experience across the company.Technologies: NodeJs, TypeScript, GoLang, Java, AWS. -
Security Tester - Automation EngineerKlarna Ab Oct 2013 - Sep 2016Estocolmo, SueciaMy current role is a mix I really enjoy, since it involves tests automation, performance testing, and security testing. I am also part of the interviews process for new prospective candidates.Some of the assignments worth highlighting are:- Design, development, and maintenance of a company-wide continuous automated testing platform based on technologies such as Ruby, ElasticSearch, Jenkins, Apache Mesos, Docker. - Taught two Web Security Workshops for people from different areas (including Developers, Testers, etc).- Created a "Security Challenge" game so as to encourage the Engineering department deepen the knowledge about software security. - Ongoing collaboration with Security Operations department. - As a result of various pen-testing assignments, I spotted and provided detailed reports of a lot different flavors of security issues that help to improve security awareness among the teams.- Identified, designed, and automated complex test scenarios using Java. This also required developing clients for different protocols such as SSH, IMAP, POP, SFTP, HTTP. - Helped in the design of a Single sign-on solution. - Carried on performance testing in different projects. -
Automation Testing LeadCore Security Technologies Jun 2009 - Sep 2013Buenos Aires, ArgentinaCoordinated a highly-skilled team of automation engineers. Developed a distributed multipurpose & multi-platform test-driven automated testing framework. Developed libraries and tools to provide support to QA tasks, such as VMWare virtualization and a COM interface to programmatically interact with Core Security's main product.Provided in-company training on test automation, python OO programming, and web security.Developed pysphere (pysphere.googlecode.com), a python API for interaction with the vSphere Web Services SDK.Used security tools: Core Impact Pro, Metasploit, Nmap, OllyDbg, Burp, John The Ripper, fuzzers, etc.Researched and released the following security advisories: - Cisco Webex: http://www.coresecurity.com/content/webex-atp-and-wrf-overflow-vulnerabilities - 3DStudio: http://www.coresecurity.com/content/3dsmax-arbitrary-command-execution - Blender: http://www.coresecurity.com/content/blender-scripting-injection - VMWare ESX: http://www.coresecurity.com/content/vmware-esx-input-validation-error -
Qa LeaderBelatrix Software Factory Aug 2005 - Jun 2009Mendoza, ArgentinaDeveloped tasks in: Functional Testing, Regression Testing, Stress & Load Testing, Network and Application Security Testing, and Automated Testing for applications developed in-house and off-shore. Carried out testing activities in more than 15 projects (participated as QA leader in most of them). Involved in kick-off meetings and testing strategy definition for the company's key projects.Trained QA staff in: Python, SQL, Test Automation, Web Security and Performance testing, among others. Research projects: Web security (vulnerabilities detection and exploitation). Test Cases automatic ranking based on Artificial Intelligence algorithms. Development of a distributed automated testing framework in Ruby, based on Selenium. Developed tools for in-company use.Participated in the process of CMMi and ISO certtifications -
Qa EngineerWattbot 2008 - 2009Wattbot was a client of Belatrix Software Factory. My main assignment In this project was to automate the regression testing suite using Cucumber and Ruby. I also had the chance to perform security testing. -
Qa EngineerAculis 2006 - 2009Aculis was a Key partner company of Belatrix Software Factory. I had the chance to work in several different projects for them, as a technical QA lead. Some of the tasks included performing security testing, performance testing, and automating tests suites.
Sebastián Tello Skills
Sebastián Tello Education Details
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English -
Information Systems Engineer
Frequently Asked Questions about Sebastián Tello
What company does Sebastián Tello work for?
Sebastián Tello works for Atlassian
What is Sebastián Tello's role at the current company?
Sebastián Tello's current role is Senior Developer at Atlassian.
What is Sebastián Tello's email address?
Sebastián Tello's email address is st****@****xsf.com
What schools did Sebastián Tello attend?
Sebastián Tello attended University Of Cambridge, Universidad Tecnológica Nacional.
What skills is Sebastián Tello known for?
Sebastián Tello has skills like Python, Php, Test Automation, Selenium, Scrum, Mysql, Quality Assurance, Sql, Xml, Agile, Linux, Web Services.
Who are Sebastián Tello's colleagues?
Sebastián Tello's colleagues are Deepankur Trivedi, Tamer Atamer, Adam Furness, Sarah Flintoff, Robert Boysis, Sungmin Jin, ابراهيم الهواري.
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Sebastian Tello
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Sebastian Tello
Head Of Metallurgy Mitsui & Co. Mineral Resources Development Latin AmericaSantiago Metropolitan Area2y7mail.com, jktech.com.au -
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