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Hi, I’m Nikita Reshetnik.I make things. Some talk back.

AI Engineer

I’m an AI Engineer with 5 years of experience building enterprise software. I work on .NET applications and AI systems that run in production.

I see features through implementation, testing, and release, and help the team coordinate the work along the way. In my free time, I sometimes contribute to open-source projects and write about technical topics that interest me.

2024—2026 · 1 role

AI Engineering

I build AI services and the evaluation pipelines that help us see how prompt changes affect quality. I also keep an eye on how those services behave in production, coordinate work across the team, and help fellow engineers put AI tools to use.

2021—2024 · 5 roles

Software Engineering

I build features across .NET services, plugins, and desktop applications. That also means working through slow SQL queries, reviewing code, and teaming up with QA and DevOps to get releases out and sort out deployment issues.

Current role
Senior AI Engineer
Education
Bachelor’s degree, Software Engineering
Languages
English, Ukrainian, Russian
Based in
Europe
  1. November 2024March 2026

    AI Engineer

    ELEKS

    Led cross-functional delivery of LLM-powered services, with responsibility for AI evaluation, observability, and engineering workflows. Supported hiring, onboarding, and practical adoption of AI development tools.

    Highlights
    • Designed and delivered an LLM-powered REST API for information extraction, classification, controlled rewriting, semantic matching, and embedding-based search. Implemented reusable prompt patterns, custom evaluations, and observability for AI feature usage, reducing manual work for end users.
    • Built automated LLM evaluation pipelines using deterministic metrics such as accuracy and macro- and micro-averaged F1 scores for classification, and LLM-as-a-Judge metrics for non-deterministic outputs, to detect quality regressions as prompts evolved.
    • Led a new cross-functional team, ran Agile ceremonies, and coordinated day-to-day work across QA, MLOps, Data Science, DevOps, and Product stakeholders. Interviewed and assessed candidates for an AI Engineer role on the project.
    • Created internal documentation and wikis, including a newcomer dashboard, to make project knowledge easier to find and speed up onboarding.
    • Modernized CI/CD pipelines, added automation to improve dev and QA workflows, and built Grafana dashboards to monitor AI infrastructure and database upgrades.
    • Ran hands-on AI tooling sessions for engineering teams, sharing practical workflows and real-world uses of GitHub Copilot and Cursor to support day-to-day adoption.
  2. December 2023November 2024

    Software Engineer

    ELEKS

    Delivered .NET features across microservices, a monolith, plugins, and a desktop client, with responsibilities spanning SQL performance, code quality, Agile coordination, and release support.

    Highlights
    • Delivered end-to-end features and bug fixes across RESTful microservices, a monolithic application, plugin packages, and the desktop client.
    • Developed and optimized complex SQL queries for data retrieval, manipulation, and reporting. Collaborated with database engineers to refine query execution plans and improve database performance.
    • Reviewed code, promoted sound design and best practices, and proactively suggested legacy code refactors to improve maintainability and align with modern .NET standards.
    • Participated in Agile planning, daily stand-ups, and retrospectives, and led these activities on a rotating basis.
    • Worked with QA and DevOps on releases, resolving deployment issues and supporting smooth rollouts.
  3. May 2022December 2023

    Junior Software Engineer

    ELEKS

    Developed and integrated features across backend services and plugins, resolved client support issues, and contributed through code reviews, pair programming, and shared technical documentation.

    Highlights
    • Delivered features and bug fixes across RESTful microservices, a monolithic application, and plugin packages, integrating changes across system components.
    • Reviewed peers’ pull requests and paired on complex tasks.
    • Investigated and resolved client-specific support tickets requiring technical and domain knowledge.
    • Created and maintained developer wikis for environment setup, installation, and API documentation, and curated a shared SQL query library to support investigations and data generation.
  4. December 2021May 2022

    Trainee Software Engineer

    ELEKS

    Contributed supervised REST API changes and fixes while learning .NET practices, project architecture, and the time-management and legal domain. Maintained onboarding documentation and developed stakeholder communication skills.

    Highlights
    • Delivered basic REST API changes and bug fixes under supervision, integrating them with other team components.
    • Collaborated with senior developers to adopt modern .NET practices and understand project architecture.
    • Quickly ramped up on the time-management and legal domain while learning to communicate effectively with project stakeholders.
    • Created and updated developer wikis covering environment setup and project guidelines, supporting onboarding for future team members.
  5. September 2021November 2021

    Software Engineer Intern

    ELEKS

    Practiced ASP.NET REST API development through the AutoHubAPI project and presented the application and progress to company management, leading to employment.

    Highlights
    • Built AutoHubAPI, an ASP.NET Web API pet project, to learn and practice REST API development in a monolithic, multi-layer architecture.
    • Presented the application and my progress to company management, which led to employment.
  6. March 2021April 2021

    Software Engineer Intern

    Sigma Software Group

    Collaborated with fellow interns on a full-stack car rental application, contributing to Figma-based interface implementation and backend unit and integration testing.

    Highlights
    • Developed a full-stack car rental application with a team of interns.
    • Designed the front end using Figma mockups and implemented a responsive, user-friendly interface.
    • Achieved at least 80% unit and integration test coverage on the back end.
  • I worked with Nikita for over 2 years and I would strongly recommend to work with him as a software engineer. I want to emphasize that Nikita is not just a developer who writes code - he is a true engineer, curious about modern problems, innovative technologies and is always ready to take on new challenges. Nikita is eager to gain new knowledge that might be helpful in his line of work, which makes him a valuable asset for every team.

    Khrystyna VelychkoSenior Project Manager @ Cossack Labs
  • I had the pleasure of working with Nikita and can confidently say that he is a highly talented and driven professional. Despite being early in his career, he demonstrates exceptional analytical skills and a mature, thoughtful approach to problem-solving. He has strong ability to think outside the box when the situation calls for it. He consistently brought fresh, well-grounded ideas to the table that added real value to our work. Collaborating with him was both productive and enjoyable. He’s a quick learner, proactive, and has great potential for growth.

    Yaroslav ZubetsSoftware Engineer @ Meta
  • It is a great pleasure working with Nikita. Nikita is result-oriented, a fast learner, and often completes tasks much faster than expected. Nikita is also great at team communication and collaboration. Highly recommend Nikita.

    Antony MelnykTeam Lead @ ELEKS

University degree

Bachelor’s degree, Software Engineering

State University of Information and Communication Technologies

Kyiv, Ukraine

AI / Machine Learning

  • Microsoft Agent Framework
  • Semantic Kernel
  • Microsoft.Extensions.AI
  • Large Language Models
  • LLM Evaluation
  • Retrieval-Augmented Generation
  • Azure AI Foundry
  • Langfuse

Programming Languages

  • C#
  • Python
  • TypeScript
  • SQL

Backend

  • .NET
  • ASP.NET Web API
  • Entity Framework
  • REST API

Data

  • Microsoft SQL Server
  • PostgreSQL
  • Elasticsearch
  • MongoDB
  • Kafka

Cloud & DevOps

  • Microsoft Azure
  • Amazon Web Services
  • Vercel
  • Docker
  • Kubernetes
  • Argo CD
  • Jenkins

Observability & CI/CD

  • Grafana
  • Prometheus
  • Kibana
  • Azure DevOps
  • GitHub Actions
  • GitLab CI/CD

AI Development Tools

  • Claude Code
  • Claude Design
  • Codex
  • OpenCode
  • Pi
  • Cursor
  • CodeRabbit
  • GitHub Copilot
See other work

Under review

Merged

GitHub activity · last 12 months
github.com/grafanaKibana
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Let's talk

Have a role, project, or engineering challenge worth discussing? Send me a message or email me directly.