Vlad L.
Backend Developer
His expertise includes building high-performance systems, command-line tools, APIs, and backend services, with additional experience in OCaml, Python, and Clojure.
In his recent role at a startup, Vlad enhanced a Rust-based CLI tool for backup management and malware scanning and developed APIs to support backup orchestration in AWS environments. His work focused on improving system reliability, performance, and automation across backup workflows.
Previously, Vlad worked as a freelance developer using Rust and OCaml, developing prototypes for SMTP proxy servers and optimizing legacy systems. He also worked with Python and Clojure to develop MMO game server logic and microservices.
Vlad focuses on building efficient, reliable, and maintainable systems and has a particular interest in Rust's memory safety, concurrency, and performance capabilities.
Main expertise
REST API4 years
Rust4 years
Microservices12 yearsExperience7
Rust Developer
- Designed and implemented AWS Lambda services and ECS Docker containers, integrating Elastio’s data protection CLI tool to facilitate backup operations within customer AWS environments.
- Built systems to store and manage metadata for backed-up assets using DynamoDB and S3, ensuring reliable tracking and availability of customer data.
- Created a scheduler for regular backups, recovery checks, and malware scans based on customizable user policies, enabling automated and secure data protection.
- Developed mechanisms to dynamically allocate AWS resources for on-demand backups and restores, optimizing performance and cost efficiency.
- Implemented tools to track job statuses and report progress, providing customers with transparency and control over background processes.
- Enabled backup metadata replication and developed inventory tracking for AWS assets, improving resilience and comprehensive data management.
- Automated resource cleanup to prevent “leaked” resources, improving operational efficiency and reducing unnecessary costs for users.
- Designed a fail-safe replication system to store backup metadata in immutable S3 buckets, protecting against data loss caused by compromised accounts.
- Implemented a complex retention policy framework for deleting old and infected backups, supporting customer compliance requirements and data lifecycle management.
OCaml/Rust Developer
- Prototyped SMTP proxy servers and integrated them with internal Mail Transfer Agents and an accounting system.
- Maintained and optimized a legacy distributed analytical system.
- Improved web page analysis for an internet-scale bot that crawled the web 24/7.
- Extended a Twitter crawling and data indexing system.
Haskell
Senior Clojure Engineer
- Developed numerous microservices for an event management platform.
- Integrated a ticketing system with the rest of the platform.
- Implemented server-side logic for the Session Registration product.
ClojureFull-stack Web Developer
- Built React/Redux-based web UIs for call center and post office software.
- Developed multiple Clojure services for a scalable logistics platform.
- Integrated internal and third-party services into the platform.
ClojureScriptREST API
TornadoClojure
Senior Python Developer
- Implemented server-side logic for MMO World of Warplanes using an actor-based framework.
- Prototyped experimental game features.
Python Developer
- Implemented inter-process communication among server-side components of games for social networks.
- Wrote server-side logic and created HTTP APIs for mobile games.
- Built an internal cross-promotion service, integrating it with social network games.
- Created web-based content editors.
REST APITornadoPython Developer
- Developed server-side logic for the browser MMO Apocalypse 2056.
- Built internal services for game statistics collection and processing.
- Created desktop content editors.
Engineering excellence
All Backend Developers who have applied to Proxify are scored from 0 to 300 on engineering excellence, one of the five parameters we evaluate. This score reflects engineering excellence only, based on interviews, take-home assignments, live coding sessions, and/or on-the-job performance reviews. The curve shows how all evaluated Backend Developers are distributed across that range, where our acceptance threshold for this parameter sits, and where Vladyslav stands.
Score 183 · Top 13% of engineers
Education
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