Pavel K.

Responsible for 2 full-stack engineering teams (10 engineers total) working on ImmoScout24 financing products.

Lead an international team of 4 full-stack engineers working with the product manager, data scientists, data analysts, UX researchers, and various stakeholders to protect users from fraud. • Improved company-wide hiring process for full-stack engineers; interviewed and hired engineers for multiple teams. • Coached and mentored the team to develop necessary skills (customer-facing frontend, Kotlin + Spring Boot, Data Analytics, A/B testing). • Coached engineers to take ownership outside the regular responsibilities (facilitating meetings and ceremonies, presenting in company-wide knowledge-sharing sessions, and contributing outside the team). • Facilitated learning through timely feedback, regular 1-1s, sprint retrospectives, and incident postmortems. • Acted as Incident Commander, and efficiently coordinated multiple incidents’ resolution. • Designed a “north star” metric for the team reflecting the consumer impact of fraud. • Delivered a 6-month long project, significantly reducing leads for fraudulent listings. • Managed stakeholders across different teams, functions (engineering, data science, marketing, UX, customer care, account management, legal), and roles.

Developed tools and processes to protect customers from phishing and fraud together with a team of engineers and data scientists. • Acted as interim tech lead and prioritized tech backlog to improve developer experience and system resilience • Streamlined team’s observability practices and set up on-call rotation. • Improved Scrum process, established definitions of done and ready, facilitated team retrospectives. • Built a data pipeline and a real-time service for image reuse detection across accounts. • Automated Scala dependency updates. Stack: Scala/Play, Kotlin/Spring Boot, Python, JavaScript, TypeScript, MySQL, PostgreSQL, Elasticsearch, Spark, Docker, AWS (CloudFormation, DynamoDB, S3, SQS, EMR, etc.).

Worked on improving transparency of residential real estate market together with a team of engineers and data scientists. • Built a data pipeline for calculating price trends for all neighborhoods in Germany. Productionized a ML model for a price comparison API. • Created tools to simplify usage of AWS SageMaker within the company. • Optimized conversion of IS24 Price Atlas with A/B testing, web performance and cross-browser testing. • Lead functional programming training in the team. Stack: Scala/Play, Python/Tornado/NumPy/Pandas/Dask, Java/Kotlin/Spring, JavaScript/Typescript/React.js, PHP/Symfony, Elasticsearch, PostgreSQL, MySQL, Spark, Docker, AWS (CloudFormation, ECS, EC2, RDS, S3, SQS, EMR, SageMaker, Data Pipeline, Step Functions, KMS, SSM, CloudFront, CloudWatch, etc., etc.), Datadog, Optimizely.

Maintained Agoda's Experimentation Platform processing billions of traffic events per day, tracking hundreds of A/B tests in near real-time for 4M monthly active users under strict latency and accuracy SLA, providing an easy way to run trustworthy online experiments with fast time-to-market. • Improved and released platform libraries to hundreds of developers. • Saved the team weeks of work by automating CI/CD pipeline with TeamCity and Puppet. • Supported dozens of users, promoting experimentation best practices. Stack: Scala/Akka/Spray, Kafka, Cassandra, RabbitMQ, Hadoop, SQL Server, C#/ASP.NET Core, TypeScript, JavaScript/Angular.js/Vue.js, Grafana, ELK, Docker

Led various software projects and provided training for GVW Group companies: - Collaborated with product owners and facilitated an international team of developers, helped analyze, design, and implement an integration and data cleansing project for multiple ERP/E-commerce systems. Technologies used: MS SQL Server, .Net Framework, C# - Organized and negotiated fees for Agile training for the Moldovan team. Provided on-site Agile/Scrum training for over 50 people in the USA and South Africa, including developers, managers, and clients. Helped create the company’s agile handbook. - Led a team of 5 engineers, gathered requirements, and worked directly with the client’s management and product team to build an enterprise platform for business innovation and growth, built with Backbone.js, Microsoft ASP.net MVC, Entity Framework, MS SQL Server, and Amazon Web Services. - Provided support for multiple legacy systems. Tracked down, debugged, documented, and fixed dozens of bugs.

- Collaborated with the client, analyzed requirements, and lead a team of 5 developers working on an enterprise platform for business innovation and growth, implemented with Asp.NET MVC and Amazon Web Services - Maintained various enterprise systems for Aculocity’s clients, as well as internal projects, based on Microsoft technology stack (Windows, IIS, SQL Server, .NET, Asp.NET, SharePoint) - Recruited and trained some of the best software developers for the Moldovan office

Improved mobile app performance by 50% Coded dozens of websites that "pop" Performed a variety of projects including: - Mobile applications development (.NET CF 3.5, SQL Server Compact 3.5, Windows Mobile 2003-6.5) - Web applications development (ASP.NET, Python (Django), PHP (modx), XHTML, CSS, jQuery, XSLT) - System/Network administration (Linux – Apache, Iptables, Squid, Mercurial, Git, SSH, Redmine, Django; Windows Server 2003 – IIS, Services, SQL Server, TeamCity, Firewall, Active Directory)

During the internship carried out various tasks including test automation, regression, black box testing of financial desktop and server-side applications, web services; technical documentation writing for the client company (Reuters). Found an important bug during exploratory testing on my first day. Tested a completely redesigned version of the client’s trading software, in Japanese.