Igor Tceglevskii
Member of Technical Staff @Cosmon, Inc
Signup · Get unlimited contacts
WORK HISTORY
Member of Technical Staff @Cosmon, Inc
San Francisco, CA
Software Engineer @Cline
San Francisco, CA
Joined as an engineer and grew into the Head of Infrastructure / Team Lead role around September 2025 - while staying hands-on in code the whole time. Full-stack contributor across Cline's backend, VS Code extension, and CLI. Highlights: • Pioneer of automation, multi-agent patterns, and LLM-native workflows on the team - introduced OpenClaw for infrastructure monitoring, built a Karpathy-style agent-maintained knowledge base, prototyped multi-agent architectures on our yet-unreleased Cline SDK, and launched an internal R&D lab for ideas just beyond the product roadmap. • Drove the on-premise enterprise offering from zero to two live pilot installations inside customer infrastructure, across two very different environments. Built from scratch the mechanism for binding Cline's extension and CLI to a customer-specific backend (no public marketplace). • Led a multi-region Disaster Recovery re-architecture in Terraform, with validated hot-to-warm database failover. Was ~2 weeks from production cutover when a company pivot paused the project. • Primary dogfooder of Cline's V2 agentic SDK - first engineer to exercise it as an SDK (vs. as an agent). Adapted multi-agent and deep-research-style architectures onto Cline's market-first multi-agent SDK feature. • Shipped Cline support for every remaining JetBrains IDE - WebStorm, PyCharm, Android Studio, and the rest - through hacker-level debugging across per-IDE JVM and WebView differences. • As Team Lead, turned scattered engineers into the company's most organized function - weekly planning, explicit goals, and a reporting cadence that became the company-wide benchmark. Built a graph-shaped infrastructure roadmap that eliminated "spray and pray" parallelism. • Without a formal mandate, overhauled the company-wide interviewing process after the founding team thinned - delivered a formal process with a raised quality bar and measurable behavioral criteria.
Software Engineer
Senior Software Engineer @Oculus VR
Burlingame, California, United States
Native API, OpenXR, and PC Integration * Led team of 5 on the design, development, and integration of OpenXR extensions, contributing to launch of Quest Pro and achieving timely project completion feature during Mark Zuckerberg’s presentation at Meta Connect * Managed privacy compliance and enhanced developer tools, expanding PC support for Eye and Face Tracking APIs and integrating partner applications (social media applications, games) * Designed and delivered PC support for APIs (face tracking, eye tracking, body tracking), decreasing developer timelines by and achieving recognition by CTO (Andrew Bosworth) on blog Unity Integration and Usability Enhancements * Created Unity workstream for Movement API, establishing development capabilities for team with no Unity experience * Enhanced usability with tools/processes, published tracking features in Unity, and updated public guides and troubleshooting resources, improving developer experience and achieving feature parity with native API development * Collaborated with the Product Manager and Experience team to continuously refine the API and tools, improving integration capabilities and developer experience Unreal Engine Integration and Development * Spearheaded rapid integration of Unreal Engine support and development of integration layer for the Movement API and coordinated with contractors, achieving feature parity with Unity and enhancing developer tools * Launched new Unreal Engine features (IOBT, Generative Legs, advanced Face tracking blendshapes), meeting all Product Manager guidelines for game development partners * Coordinated development and release of a new version of the sample app and managed transitions between outsourcing companies, ensuring seamless project continuity/quality and enhancing retargeting/integration
Senior Software Engineer @Facebook
Menlo Park, California, United States
* Developed API and customizable UI for messaging integration across Facebook services used by 10+ teams (Dating, Marketplace etc.) within Facebook and integrated with Messenger and Instagram, expanding userbase to new countries, enabling cross-platform messaging and ensuring privacy/security with end-to-end encryption for millions of users * Managed 10+ A/B testing experiments to optimize features, partnered with Product Manager to understand user use cases, and collaborated with backend team, improving user experience while maintaining feature parity with iOS * Promoted Kotlin within team, enabling efficient/maintainable code and improving developer productivity * Mastered GraphQL for mobile app and backend communication, extending functionality to support new features
Senior Android Developer @Agoda
* Led team and architected new payment application designed to add acquiring services to current offerings provided to hotel clients, releasing prototype and securing adoption by thousands of businesses within 1 year * Leveraged best practices/experience from Square and created robust, fault-tolerant data-driven architecture for the Android application, achieving recognition for mobile app as the most reliable component during the PCI DSS audit * Developed automatic documentation generation system for the payment process to enable QA to conduct thorough reviews efficiently, reducing QA processes and improving quality of final process checks * Led team of 4 to design and implement system to manage the release process and automate routine tasks to optimize the release process for Agoda's Android application, decreasing release timelines * Contributed to creation and led maintenance of the CI infrastructure for Agoda's entire mobile development team, increasing testing adherence to 100% * Developed and deployed Kubernetes cluster with 3K+ CPU cores with all tools necessary for building, testing, and publishing Agoda’s Android and iOS applications * Architected pool of real Android devices for running UI and end-to-end (e2e) tests
Staff Software Engineer, Android Developer @MyPay Co.,Ltd
Collaborated with team (TPM, iOS Developer, Backend Developer) to advance app prototype and integrate payment, completing all requirements and moving app to beta testing phase
Staff Software Engineer, Android Developer @WiFi as you go
Collaborated with team (TPM, iOS Developer, Backend Developer) to advance app prototype and integrate WiFi sharing capabilities, completing all requirements and moving app to beta testing phase
Teacher of "Android Development" course. @«Specialist» Computer Training Center
Moscow, Russian Federation
* Taught 6 cohorts Android development to take students from beginner to professional, updated course curriculum to reflect latest trends, and incorporated architectural best practices, leading to 100% of students securing jobs * Trained new instructor on Android development teaching, expanding program for students * Collaborated with businesses to organize internships, allowing students to work on real applications and interact with all stakeholders in business processes https://www-specialist-ru.translate.goog/course/android?_x_tr_sl=ru&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=wapp https://www-specialist-ru.translate.goog/course/android2?_x_tr_sl=ru&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=wapp
Staff Software Engineer, Android Developer @Mobile Dimension
I develop cool modern apps. With material design interface, network asynchronous communications, TDD in process and other contemporary technologies. Big part of market of this company is B2B, so there are few apps of my team in Google Play. You can read about our solutions: http://www.mobiledimension.ru/retailaudit/ - mobile workplace for supervisors of big retail networks. http://www.mobiledimension.ru/health/ - solution for registration to doctors in clinic. http://eventlookapp.ru/ - exhibition navigator.
Mobile Development Team Lead, Principal Software Engineer, Android Developer @2can
I'm team leader of mobile development team in "Smart Fin". "Smart FIn" is Russian leader in mPOS solutions market (his brand is "2Can"). My responsibility is mobile development strategy, communication with another teams, requirement analysis, creating tasks, planning, API development. Simultaneously I'm Android developer, I make every day development like technology research, new features implementation, bug fixing, refactoring etc. During my work I've made a few integrations with external Bluetoogh devices.
Senior Software Engineer @Original Software LLC
Moscow, Russian Federation
I was Android team lead and Android developer. It was generic hard work in ambitious startup. Programming, hacking, research, management, every day.
Senoir Software Engineer @3Q Ltd.
* Customized Android OS (AOSP) * Developed and enhanced OTA (Over-the-air) updating system
Software Analyst @Peak Systems
* Developed and enhanced 20+ software specification and requirement documents, architected security aspects and payment scenarios with Smart Cards, including collaboration with MasterCard and hardware vendors * Led prototyping on a mobile platform (Android)
Software Analyst @Jet Infosystems
* Developed requirements for the DLP (Data Leak Prevention) system "Dozor-Jet" * Performed pre-sale activities and developed integration solution for 10+ customers, collaborated with engineering, sale and marketing teams
IT Manager @LOMO Photonics, LLC
Manage the software developers team; Software developing for medical devices.
Software Engineer @Sun Microsystems Inc
Developing Sun Studio compilers. Foundation and participation in Russia Open Solaris Users Group.
System administrator, programmer @IP Net SPb
Administration network and database servers; Software development; Back engineering and modification of numerous software applications; Network administration.
Programmer @ZAO "Internet Projects" (subscribe.ru)
Software development; Local network administration; Back engineering.
Network Engineer, Software Engineer, Head of Department @SPbGU (V. Telecommunication Center)
Network development; Software development; Solving of nonstandard problems with network, software and people.
Programmer @Institute of Culture (Center of Automatic Systems)
Programming library systems, network administration
Programmer @Supermarket
Development commodity circulation and discount operation system; Network administration.
SKILLS
ABOUT IGOR TCEGLEVSKII
Engineering team lead with a hands-on technical core, focused on agenticAI. At Cline (the open-source AI coding agent) I was the hands-on pioneerof automation, multi-agent patterns, and LLM-native workflows. On aparallel track, I led our on-premise enterprise offering from zero toproduction pilots.Concretely, on the agentic-AI side: I introduced (safely) ClaudeCode forinfrastructure monitoring; built an agent-maintained internal knowledge base(the pattern Andrej Karpathy recently described); prototyped multi-agent architectures on top of ouryet-unreleased Cline SDK; and launched an internal R&D lab for ideas sittingjust beyond the product roadmap - because that is usually where the nextproduct comes from. I stubbornly chase small usability issues: a papercutmultiplied by a thousand daily sessions is a real hit to product quality.Alongside all of this, the daily grind - shipping features, fixing bugs,writing tests, maintaining CI/CD.The role broadened over time: I took on Head of Infrastructure / Team Leadin parallel, led a multi-region Disaster Recovery re-architecture fullydescribed in Terraform, and drove a company-wide overhaul of theinterviewing process. I'm comfortable wearing three hats at once -engineering manager (drive to result), tech lead (feasibility and safety ofsolutions), and hands-on engineer (code alongside the team) - and I did allthree at Cline simultaneously.Before Cline, at Meta Reality Lab I owned three integration workstreamssolo - Native/PC, Unity, and Unreal Engine - supporting Quest Pro, with oneOpenXR feature demoed during Mark Zuckerberg's Meta Connect keynote and aCTO shout-out from Andrew Bosworth. At Facebook my team was among the firstgranted the right to ship production Kotlin in the main Blue App. At AgodaI designed the mobile payment application end-to-end and rebuilt the releaseprocess from scratch - idea distilled from observing DevOps patterns, thensold up to the director.I'm looking for a team-lead or staff role where agentic AI meets realproduct delivery - ideally with customers who depend on the system, notjust demos that look good on Twitter.Best way to reach me: i••••••••@gmail.com
This profile is compiled from publicly available professional sources. Unifers is not affiliated with or endorsed by LinkedIn. Request removal of this profile.