Serhii Diachenko

Senior Software Engineer | AI-Native Development | 11+ YOE

Chornomors'k, Ukraine

Joined Oct 2026

Senior Software Engineer | AI-Native Development | 11+ YOE

For nearly 10 years, I worked on LiveNX, an enterprise network analytics platform developed by LiveAction (a BlueCat company). LiveAction's client portfolio includes global companies such as Ford, Nestlé, IBM, and FedEx.

My core expertise is in Frontend Architecture, Performance Optimization, and Data-Intensive Applications.

I build complex analytical interfaces with large-scale data tables, interactive visualizations, and near-real-time data. I design efficient data flows and state management solutions, optimize API interactions, modernize legacy systems, and build scalable UI architectures. My focus is on delivering fast, reliable, and maintainable systems that can evolve with business needs.

I combine extensive software engineering experience with AI-Native Development.

I build agentic AI workflows for planning, implementation, code review, security checks, and independent verification. My goal is not just to accelerate coding, but to improve the entire software development lifecycle while maintaining control over code quality, architecture, and risks.

Tech Stack: Angular, TypeScript, RxJS, NgRx, Node.js (BFF/API). I also have experience with React and am expanding my Full-Stack expertise with NestJS.

Open to remote opportunities as a Senior Frontend / Full-Stack Engineer, AI-Native Software Engineer, or AI Tooling / Developer Productivity Engineer. I also consider React-based and framework-agnostic roles.

Experience

Software Engineer
GBSFO
Feb 2016 - Jul 2025 · 9 years 5 months · Hybrid · Full time
Worked on LiveNX, an enterprise SaaS platform for network monitoring and analytics used by global companies, including IBM and Ford.
- Designed and evolved frontend architecture using Angular, TypeScript, NgRx/ComponentStore, and RxJS; owned features end-to-end, from requirements to release.
- Built data-intensive dashboards, interactive visualizations, and complex data grids (AG Grid, D3.js, Highcharts); integrated REST APIs and Node.js services.
- Optimized rendering performance, state management, lazy loading, and large-scale data processing.
- Contributed to the AngularJS-to-Angular migration, component standardization, UI redesign, and UX improvements.
- Developed a documentation website using React/Gatsby, wrote Jest tests, conducted code reviews, and mentored developers.
Tech Stack: Angular, TypeScript, RxJS, NgRx, Node.js, React, Jest, AG Grid, D3.js, Highcharts.
AngularTypeScriptJavaScriptRxJSNode.jsReactNgRxREST APIJestD3.jsAG GridSoftware ArchitecturePerformance OptimizationSaaSData Visualization
Front-End Web Developer
HTML Experts
Mar 2015 - Feb 2016 · 11 months · Office · Full time
Developed interactive websites and responsive web interfaces with a strong focus on visual quality, animations, and performance.
- Implemented complex designs with pixel-perfect precision, following high-end visual standards comparable to Awwwards-level websites.
- Built interactive elements, advanced animations, and transitions using JavaScript and GSAP.
- Used Pug, Handlebars, and SCSS to create reusable templates, components, and styles.
- Ensured responsive design, cross-browser compatibility, and rendering performance optimization.
- Maintained consistent UI/UX across different devices and screen sizes.
Tech Stack: JavaScript, HTML5, CSS3, SCSS, GSAP, Pug, Handlebars.
JavaScriptjQuerySassGSAPSVGInteraction DesignHTMLCSSLessResponsive DesignCross-Browser Compatibility

Projects

DevDigest & AI engineering harness
github.com
React-based PR-review application and agent workflows
- Built an AI engineering harness with specialized agents for research, specification, planning, implementation, and independent verification. Defined agent context, tools, write scopes, and reusable skills.
- Implemented Spec-Driven Development (SDD) connecting requirements and acceptance criteria with implementation, tests, and verification to identify gaps.
- Integrated PR review with coding agents via MCP. Built a local MCP server exposing review results and added structured PR briefs highlighting change intent, risks, and review priorities.
- Developed agent evaluations and observability. Created deterministic checks for review findings, tracked run metrics, and analyzed transcripts, token usage, caching, tool calls, and estimated costs to improve agent workflows.
AI AgentsAgent OrchestrationModel Context ProtocolAgent SkillsModel EvaluationSpec-Driven DevelopmentClaude CodeCode ReviewAI-Assisted Development
AI Marketplace
github.com
Reusable skills, agents and workflows
- Packaged reusable agent tooling as plugins. Organized skills, agents and workflows with dependency/reference checks and per-plugin version validation so the same engineering procedures could be distributed across projects.
- Implemented release and validation tooling. Added CI checks, behavioral eval assets, release/tagging automation, clean-profile installation checks and cache-aware rollback that restores previous plugin content under a new version.
- Built a discoverable tooling catalog. Generated a searchable, localized catalog from plugin metadata to make available tools and workflows easier to inspect and select.
Agent SkillsAI AgentsAgent OrchestrationModel EvaluationCI/CDSoftware ArchitectureGit
Documentation website for LiveAction product portfolio
React/Gatsby documentation website covering the LiveAction product portfolio.
ReactGatsby

Education

Master of Engineering, Computer Systems, Networks and Telecommunications
State University of Intelligent Technologies and Telecommunications
2007 - 2013
Earned a Master's degree in Engineering, specializing in Computer Systems, Networks, and Telecommunications, from O.S. Popov Odessa National Academy of Telecommunications (now the State University of Intelligent Technologies and Telecommunications).
Gained a solid foundation in computer systems, networking technologies, and telecommunications, which later proved valuable in developing LiveNX, an enterprise platform for network monitoring and analytics.