Bjak

Bjak

Preston, North West

Remote Technical Product Manager, AI Systems

Full-Time£29,000 - 69,000 per yearavant-hierUnited Kingdom
IT

Job Description

Salary: £29,000 - 69,000 per year

Requirements:
  • Strong grounding in computer science fundamentals, including algorithms, data structures, and system design
  • Solid understanding of ML fundamentals and how modern AI systems behave in production
  • Comfort reading, reviewing, and discussing technical design documents
  • Hands-on exposure to AI-powered products, including LLM-based systems
  • Experience working with model evaluation, prompt or pipeline iteration, and feedback loops
  • Strong intuition for model limitations, hallucinations, bias, and drift
  • Significant experience owning complex, technical products end-to-end
  • Proven ability to work closely with senior engineers and ML teams
  • Strong judgment and decision-making ability in ambiguous, fast-moving environments
  • Ability to balance ambition with technical and operational reality
  • Experience shipping AI-heavy consumer products
  • Background as an engineer or highly technical product manager
  • Experience defining evaluation metrics for ML systems
  • Strong intuition for AI UX patterns and failure handling
  • Prior experience in zero-to-one product environments
Responsibilities:
  • Research and define end-to-end AI system requirements from capability to behavior to user impact
  • Translate model capabilities, data constraints, and evaluation results into clear product and system decisions
  • Make hard trade-offs across quality, latency, cost, reliability, and UX
  • Work closely with ML, backend, and mobile engineers on system design, evaluation, and iteration
  • Define and evolve evaluation frameworks across offline metrics, online experiments, and human feedback
  • Drive execution with clear specs, strong judgment, and disciplined prioritization
  • Ensure systems ship quickly, safely, and reliably, with strong feedback loops
  • Own product quality end-to-end, including correctness, predictability, and user trust
Technologies:
  • AI
  • Backend
  • LLM
  • Mobile
  • Product Manager
  • UX UI Design

More:

We are building a proactive AI chat app for everyday users to bring intelligence to conversations, errands, organising, and workflows. Our product is designed for high reliability in long-running workflows, persistent context, and real-world task completion, handling multi-step reasoning and external tools while remaining reliable despite non-deterministic model behavior. We are a high-talent-density, hands-on team that makes decisions collectively, moves quickly, and balances shipping high-quality work with learning. We value structure, judgment, and independent execution as we work to deliver a truly magical product with practical benefits to users globally. The interview process is typically 3 to 4 interviews, conducted virtually and/or onsite, with applications reviewed by our technical team.

last updated 40 week of 2026

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About Bjak

Bjak

Bjak

Preston

IT

Skills & Technologies

GoRustAILLMUXUI

Inferred from job description

Salary Insight

£49,000

This role

£80,000

UK median

This salary is 39% below the UK median for Managers (£80,000/yr).

Based on 2024–2025 UK technology sector benchmarks

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