Sebastián Tello

Sebastián Tello Email and Phone Number

Senior Developer at Atlassian @ Atlassian
australia
Sebastián Tello's Location
Antequera, Andalusia, Spain, Spain
Sebastián Tello's Contact Details

Sebastián Tello work email

Sebastián Tello personal email

n/a
About Sebastián Tello

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.

Sebastián Tello's Current Company Details
Atlassian

Atlassian

View
Senior Developer at Atlassian
australia
Website:
atlassian.com
Employees:
5797
Sebastián Tello Work Experience Details
  • Atlassian
    Senior Developer
    Atlassian May 2017 - Present
    Sydney, New South Wales, Australia
  • Atlassian
    Senior Quality Engineer
    Atlassian Sep 2016 - May 2017
    Sídney Y Alrededores, Australia
    Worked 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.
  • Klarna Ab
    Security Tester - Automation Engineer
    Klarna Ab Oct 2013 - Sep 2016
    Estocolmo, Suecia
    My 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.
  • Core Security Technologies
    Automation Testing Lead
    Core Security Technologies Jun 2009 - Sep 2013
    Buenos Aires, Argentina
    Coordinated 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
  • Belatrix Software Factory
    Qa Leader
    Belatrix Software Factory Aug 2005 - Jun 2009
    Mendoza, Argentina
    Developed 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
  • Wattbot
    Qa Engineer
    Wattbot 2008 - 2009
    Wattbot 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.
  • Aculis
    Qa Engineer
    Aculis 2006 - 2009
    Aculis 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

Python Php Test Automation Selenium Scrum Mysql Quality Assurance Sql Xml Agile Linux Web Services Test Strategy Unit Testing Test Planning Testing Java Sql Server Javascript C# Subversion Software Development Software Quality Assurance Html Uml System Testing Regression .net Automation Ajax Manual Testing Test Cases Regression Testing Performance Testing Windows Databases Web Applications Json Bugzilla Qtp Watir Bug Tracking Ui Testing Firebug Eclipse Postgresql Black Box Testing Tortoise Svn Cvs Core Impact

Sebastián Tello Education Details

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.

Not the Sebastián Tello you were looking for?

Free Chrome Extension

Find emails, phones & company data instantly

Find verified emails from LinkedIn profiles
Get direct phone numbers & mobile contacts
Access company data & employee information
Works directly on LinkedIn - no copy/paste needed
Get Chrome Extension - Free

Aero Online

Your AI prospecting assistant

Download 750 million emails and 100 million phone numbers

Access emails and phone numbers of over 750 million business users. Instantly download verified profiles using 20+ filters, including location, job title, company, function, and industry.