1C-Bitrix (PHP) Developer / AI Tech Lead

PVA EXPERT is a growing B2B company for fasteners and tools. We are looking for a developer: the website pva.expert on 1C-Bitrix/PHP — main focus, we prepare the technical specifications — and AI implementation under your technical leadership. Remote within Russia, 150,000–170,000 ₽ net + monthly bonus; we pay for ChatGPT/Codex and Claude.

Website — Main Work

This is not a Bitrix24 administrator vacancy. You will spend most of your time working with the website's PHP code: catalog, forms, integrations, and releases. Bitrix24 is a framework for CRM, tasks, Knowledge Base, and AI agents.

AI — Technical Leadership

The second direction is technical leadership in AI implementation. You will design and create agent prototypes yourself, connect them to data and APIs, and bring them to operational use. You will be the technical owner of the AI architecture; key decisions will be coordinated with the director and process owners.

What You Will Do

• develop the website according to detailed technical specifications: estimation, PHP code, testing, secure release, and documentation;
• develop components, forms, catalog/SKU, search, and technical SEO, considering 1C exchange — without programming 1C itself;
• create AI agents for Knowledge Base/RAG, tasks, monitoring, and automation;
• integrate agents with Bitrix24 via REST, webhooks, and external APIs;
• apply tool calls, RAG, access rights, logging, test sets, and human-in-the-loop;
• define the AI architecture and implementation plan, create prototypes, assign and accept tasks from contractors.

What is Required

• 3+ years of web development experience and confident 1C-Bitrix skills: PHP, D7, components, events, info blocks, and catalog/SKU;
• Git, test environment, SQL/MySQL, JavaScript, HTML/CSS; understanding of logging, security, and rollback;
• an AI agent or LLM application with API and data created personally — a strong personal project will suffice, not just chat prompts;
• understanding of RAG, embeddings, vector search, quality evaluation, and access rights;
• readiness to explain decisions, identify risks, and take responsibility for results.

Will Be an Advantage

Bitrix24 REST, Docker/Linux, CI/CD, autotests, and n8n will be a plus. Training ML models from scratch is not required.

Conditions

• remote within Russia, 5/2, 09:00–18:00 MSK, one-hour break;
• employment according to the Labor Code of the Russian Federation, net salary 150,000–170,000 ₽;
• monthly bonus for accepted developments, release reliability, documentation, and implemented AI solutions; metrics will be agreed in advance;
• probation period up to three months without reduction of the agreed salary;
• in-house product, direct communication with the director, influence on architecture;
• paid ChatGPT/Codex, Claude, and other approved tools;
• 1C and Bitrix24 specialists available: no need to program 1C or administer workstations.

Selection Process

Introduction, analysis of an anonymized code and architecture of your AI agent, then a task for up to two hours — 5,000 ₽ upon completion — and a short defense. Using AI is allowed; it is important to understand and verify the results.

What to Write in Your Application

In your application, describe a personal backend development for 1C-Bitrix and an AI agent created by you: task, stack, data, API, result, and quality check. Indicate your possible start date.