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sshilko/resume.json

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resume.json
{
"meta": {
"theme": "elegant"
},
"basics":{
"name":"Sergei Shilko",
"label": "Creativity is intelligence having fun - Albert Einstein",
"url": "https://sshilko.com",
"picture":"https://sshilko.com/shilko_avatar.jpg",
"email":"contact@sshilko.com",
"website":"https://sshilko.com",
"summary":"I'm engineer with hands-on expertise in backends. I designed, built, deployed and added features to social network app, built REST & RPC APIs, proficient with AWS cloud. I developed scalable real-time chat, video call, online booking system, search, online payments, fraud & risk systems.\n\n",
"location":{
"address":"",
"postalCode":"12627",
"region": "Berlin"
},
"profiles":[
{
"network":"github",
"title": "Github",
"username":"sshilko",
"url":"https://github.com/sshilko"
},
{
"network":"linkedin",
"title": "LinkedIn",
"username":"sergeyshilko",
"url":"https://www.linkedin.com/in/sergeyshilko/"
},
{
"network":"codepen",
"title": "Blog",
"url":"https://moar.sshilko.com"
}
]
},
"work":[
{
"company":"MessageBird B.V.",
"position":"Senior Software Engineer www.messagebird.com",
"website":"https://messagebird.com",
"startDate":"2022-06-01",
"endDate":"2023-12-31",
"summary":"Building scalable foundation services: Golang, K8s, PHP, AWS, GCP, PHP8 for accounts, accounting, billing, payments.",
"highlights":[
"REST APIs, OpenAPI v3, Google GRPC & protobuf APIs both in PHP8 and Golang 1.20",
"Developed microservices in platform system, product services, api-first, domain-driven design",
"Developed Customer WEB/UI self-service portal",
"Designed and implemented SLO/SLI metrics and alerting with Grafana & Prometheus for K8s apps",
"Optimized Billing cluster runtime >5000 RPS ledger OLTP workers: 60% cost reduction",
"Implemented runtime metrics with NewRelic, DataDog, OpenCensus, Lightstep, Jaeger",
"Improved speed of Gitlab CI/CD pipelines for K8s Helm deployments",
"Golang services in for billing, accounting, invoicing, pricing, quoting in distributed multi-region system: golang/echo.v4, dynamodb/single-table",
"Improved security by implementing features like 2FA/MFA, SSO, reCaptcha, rate-limiting ...",
"Contributed to complex CPQ Quoting and Pricing project: enterprise B2B pricing modeling"
]
},
{
"company":"Tripod Technology GmbH",
"position":"Head of Engineering www.tandem.net",
"website":"https://www.tandem.net",
"startDate":"2016-06-01",
"endDate":"2022-02-01",
"summary":"Leadership and hands-on role, 1M DAU, 12+ Engineers, 50+ employees, education domain. Microservices applications, grow & manage team, analytics, business continuity. Building and running software at scale.",
"highlights":[
"Coordinated project delivery with Product, Marketing, Community departments",
"Evaluated projects and features requirements, checked designs and architecture of the software product",
"Coordinated projects for cross-functional engineering team",
"Evaluated engineers performance, coached and mentored engineers in technologies and career development",
"Scaled backend infrastructure from 1000 RPM to 80000 RPM, from 100kDAU to >1mDAU and <50ms API response time",
"Scaled backend capacity from 1000DAU to >15M users",
"Applied cost savings plans and utilized AWS Spot instances to reduce costs by 32%",
"Hired multiple Frontend, AI/ML, Data, Backend and devOPS engineers.",
"Migrated monolithic backend application into 15 independent services",
"Introduced Golang & AWS Keyspace/Cassandra, DynamoDB for high-load group chat application storage",
"Promoted AWS Best Practices, executed AWS Well-Architected framework together with AWS solution architects",
"Maintained all business infrastructure of >40 EC2 servers across 3 AWS regions, migrated from AWS EC2 Classic to AWS VPC",
"Updated codebase from PHP5 to PHP 7.4, Go 1.14 Docker 19, PHPUnit 9",
"Supervised development of serverless microservices in Golang & DynamoDB",
"Split mono-repository into >30 separate repositories with separate CI/CD",
"Executed multiple refactoring projects in code, infrastructure, raw storage and databases",
"Maintained backend roadmap and technology radar tech-radar.opensource.tandem.net based on ThoughtWorks",
"Improved user retention analytics, subscriptions and overall revenue tracking",
"Updated real-time messaging server RabbitMQ, secured authorization, added 3rd websocket/MQTT browser client",
"Added support for in-app purchase gifting, subscription hold, grace periods, geo-search.",
"Increased application infrastructure and performance/APM monitoring automation and alerting via NewRelic",
"Built full CI/CD pipeline on AWS Pipeline inc. Blue/Green deployments and AWS ASG/AutoScaling",
"Improved China & SEA connectivity via transparent HAProxy, ICP/Hosting issues resolved",
"Built internal business KPI, retention, engagement and revenue tracking systems",
"Enforced PHPUnit & integration testing, code reviews & code style policies",
"Migrated application services into containers (Docker)"
]
},
{
"company":"Tripod Technology GmbH",
"position":"Senior Software Developer www.tandem.net",
"website":"https://www.tandem.net",
"startDate":"2013-06-01",
"endDate":"2016-06-01",
"summary":"Mature backend solutions for audio/video (tele)communications software. Developed public API for mobile clients.",
"highlights":[
"Implemented public API for native mobile clients",
"Refactored old MVP prototype codebase",
"Launched first production release 1.0",
"Celebrated first 50 users sign-up on GA and first promotions on iTunes",
"Deprecated legacy on-premise hosting and migrated into AWS EC2-Classic",
"Celebrated '2015 Most innovative app of the year' award (Apple iTunes)",
"Implemented PHP framework with open-source components",
"Reduced API response times from >=2000ms to ~100ms",
"Implemented critical app functionality: in-app messenger, real-time chat, community live feed, email-reminders, user search and more"
]
},
{
"company":"Yangutu LLC",
"position":"Lead Software Developer meetville.com",
"website":"https://meetville.com/",
"startDate":"2011-11-01",
"endDate":"2012-11-01",
"summary":"Working on web based social network.",
"highlights":[
"Added API for supporting external 3rd party Game-platform add-on's ",
"Added AMF Flex/ActionScript API Server for import/export of data to mobile platform",
"Added Facebook, Instagram, VK and other social networks integrations",
"Extended user data import and export API's"
]
},
{
"company":"eHarmony, Inc",
"position":"Software Engineer www.eharmony.com",
"website":"https://www.eharmony.com",
"startDate":"2008-08-01",
"endDate":"2011-09-01",
"summary":"eHarmony Reporting and Management Tools for Risk Management team.",
"highlights":[
"Developed CMS/RMS Internal service from specification to manage and automate risks and fraud detection",
"Working with sensitive client payment information",
"Extended CMS/RMS service with flexible and configurable multi-role authentication system for different regions",
"Added support for localization and translation of CMS/RMS",
"Added analytics and audit tools for tracking and optimizing team (users or the CMS/RMS) performance"
]
},
{
"company":"IponWeb",
"position":"Software Engineer at IponWeb www.iponweb.com",
"website":"https://www.iponweb.com/",
"startDate":"2007-08-01",
"endDate":"2011-09-01",
"summary":"SOAP/Rest API for real-time AD Exchange platform - RightMedia",
"highlights":[
"Developed on SOAP-API for high-load real-time Ad platform at big scale",
"Heavily extended and rewrote existing functional test coverage, integrational e2e testing",
"Covered new edge cases in tests which lead to fixes in critical API parts"
]
},
{
"company":"Yahoo!",
"position":"Software Engineer at Yahoo! yahoo.com",
"website":"https://yahoo.com",
"startDate":"2008-05-01",
"endDate":"2009-03-01",
"summary":"AD Exchange API - RightMedia",
"highlights":[
"Refactoring tests, code and documentation, working with remote Yahoo developers team. SOAP API. Perl. PHP5"
]
}
],
"education":[
{
"institution":"Grodnenski Dzjaržauny Universitet",
"area":"Experimental psychology",
"studyType":"MSc Psychologe Pädagoge"
},
{
"institution":"GGPEK Elektrotechnik College",
"area":"Elektrische Energietechnik",
"studyType": "Engineering"
}
],
"awards":[
{
"title": "Ultimate Go",
"date": "2023-01-25",
"awarder": "Certificate #1latfj6ukq",
"Summary": "Ultimate Go by Bill Kennedy at www.ardanlabs.com"
},
{
"title": "AWS Certified Solutions Architect - Associate (SAA)",
"date": "2018-12-13",
"awarder": "Certificate #3GV5K7KKC14Q17W1",
"Summary": "The AWS Certified Solutions Architect – Associate exam is intended for individuals with experience designing distributed applications and systems on the AWS platform"
},
{
"title": "AWS Certified Cloud Practitioner",
"date": "2020-11-21",
"awarder": "Certificate #3B28554BK2EQ1PSD",
"Summary": "The AWS Certified Cloud Practitioner examination is intended for individuals who have the knowledge and skills necessary to effectively demonstrate an overall understanding of the AWS Cloud, independent of specific technical roles addressed by other AWS Certifications"
},
{
"title": "Telc Deutsch B1 Zertifikat",
"date": "2018-05-01",
"awarder": "Certificate #0503718",
"Summary": "Telc GmbH - The European Language Certificates"
}
],
"publications":[
],
"skills":[
{
"name":"AWS",
"level":"",
"keywords":[
"EC2",
"ELB",
"Lambda",
"S3",
"RDS",
"ElastiCache",
"VPC",
"CloudFront",
"Route 53",
"API Gateway",
"CodeCommit",
"CodeBuild",
"CodeDeploy",
"CodePipeline",
"CloudWatch",
"IAM",
"ECR",
"Cognito",
"Certificate Manager",
"WAF & Shield",
"SQS",
"SNS",
"Mobile Hub",
"PinPoint",
"WorkMail",
"Organizations",
"DynamoDB",
"Secrets Manager"
]
},
{
"name":"Backend",
"level":"",
"keywords":[
"Go",
"Golang",
"PHP",
"MySQL",
"Redis",
"Percona",
"SphinxSearch",
"ManticoreSearch",
"Docker",
"K8s",
"Beanstalkd",
"RabbitMQ",
"AMQP",
"MQTT",
"Puppet",
"Nginx",
"Git",
"PHPUnit",
"NewRelic APM",
"DataDog",
"HAProxy",
"Gitlab CI",
"Symfony",
"Grafana",
"Prometheus",
"AWS",
"GCS",
"Terraform"
]
},
{
"name":"Leadership, SDM, SDLC",
"level":"",
"keywords":[
"Scrum",
"Agile",
"Team Lead",
"Project Manager",
"Head of Engineering",
"Backlog, Roadmap, Delivery",
"Hiring",
"Budgeting",
"Team building",
"Cross functional teams",
"Mentoring",
"Jira",
"Confluence",
"C4 Model"
]
}
],
"languages":[
{
"language":"English",
"fluency":"Fluent"
},
{
"language":"German",
"fluency":"B2 - Advanced"
}
],
"interests":[
{ "name":"Events",
"keywords":[
"Berlin - AWS Summit 2014, 2015, 2016, 2017, 2019", "KubeCon + CloudNativeCon 2018, 2019"
]
}
]
}
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