BJAK Logo

BJAK

Applied AI Engineer

Reposted 17 Days Ago
Remote or Hybrid
Hiring Remotely in United Kingdom
Mid level
Remote or Hybrid
Hiring Remotely in United Kingdom
Mid level
The Applied AI Engineer will develop and deploy AI features, enhance model performance, optimize systems for reliability, and collaborate with teams to address complex problems.
The summary above was generated by AI
About A1

There are over 5 billion users using basic applications today such email, notes, tasks that are not AI-native. Our mission is to build a proactive smart assistant for everyday users to bring intelligence to conversations, errands, organising and workflows, with minimal prompting.

Our product focuses on achieving high reliability for long-running workflows, persistent context, and real-world task completion. The system must handle multi-step reasoning, interact with external tools, and remain reliable despite non-deterministic model behavior. Our objective is to help users complete tasks daily enjoyable with over ~90%* reduced time.

 
Role

As an Applied AI Engineer, you will turn model capabilities into real product behavior. You will own problems end-to-end, from shaping model behavior, to building the systems around it, to ensuring it performs reliably in production.

This role sits at the intersection of machine learning, systems, and product, focusing on making AI actually work for users, not just in demos, but in real-world usage.

Focus
  • Build and ship AI features end-to-end (model → system → user experience)

  • Design and iterate on prompts, tools, memory, and agent workflows

  • Turn raw model outputs into structured, reliable, and predictable behaviors

  • Debug issues across the full stack (model, orchestration, infra, UX)

  • Optimize for latency, cost, and production reliability

  • Develop lightweight evaluation frameworks to measure real-world performance

  • Work closely with product and engineering to translate ambiguous problems into working systems

Tech Stack
  • Python

  • PyTorch / JAX

  • LLMs (OpenAI-style APIs, LLaMA, Qwen, etc.)

  • Inference / serving (e.g. vLLM)

  • Vector DB

Ideal Experience
  • Strong foundation in machine learning and modern neural network architectures.

  • Hands-on experience with training, fine-tuning, or deploying ML models

  • Ability to write clean, production-quality code

  • Comfort working across abstraction layers (model → infra → product)

  • Strong problem-solving skills in ambiguous, fast-moving environments

  • Bias toward shipping, iteration, and continuous improvement

Outcomes
  • ML models in production meet expected accuracy, latency, and reliability targets.

  • Production issues are identified quickly, debugged effectively, and root causes addressed.

  • Data pipelines, training loops, and inference systems are robust, reproducible, and maintainable.

  • Collaborates effectively with engineers, product, and research teams to deliver reliable ML-powered features.

  • Iterations on models and systems are driven by real-world signals and measurable improvements.

How We Work

The best products today in the world were built by small, world class teams. We make decisions collectively, move at rapid speed, striking a balance between shipping high quality work and learning. Joining our team requires the ability to bring structure, exercise judgment, and execute independently. Our goal is to put in hands of our users a truly magical AI product.

Interview process

If there appears to be a fit, we'll reach to schedule 3, but no more than 4 interviews.

Applications are evaluated by our technical team members. Interviews will be conducted via virtual meetings and/or onsite.

We value transparency and efficiency, so expect a prompt decision. If you've demonstrated the exceptional skills and mindset we're looking for, we'll extend an offer to join us. This isn't just a job offer; it's an invitation to be part of a team that's bringing AI to have practical benefits to billions globally.

Similar Jobs

3 Days Ago
Remote or Hybrid
United Kingdom
Mid level
Mid level
Artificial Intelligence • Fintech • Software • Financial Services
Build and ship AI-native systems for a fintech neobank: AI agents, RAG/LLM apps, tool-calling and automations to improve onboarding, KYC, support, risk review, CRM and operations, focusing on reliability, latency, cost, security and compliance while collaborating with product and engineering teams.
Top Skills: Ai AgentsAutomation WorkflowsCopilotsEvaluation And GuardrailsJavaScriptLlmsPythonRag (Retrieval-Augmented Generation)Tool CallingTypescript
3 Days Ago
Remote or Hybrid
United Kingdom
Mid level
Mid level
Artificial Intelligence • Fintech • Software • Financial Services
Build and productionize AI-native systems for a neobank: integrate LLMs, agents, RAG and internal data with product workflows to automate support, onboarding, payments and ops, while ensuring evaluation, monitoring, safety, and reliability.
Top Skills: AgentsAPIsBackend SystemsCRMKnowledge BasesLlm ApisPythonRagWorkflow Automation
4 Days Ago
Remote
UK
Mid level
Mid level
Cloud • Information Technology
Design, build, and deploy AI systems (predictive models, NLP, generative AI) from PoC to production. Work with clients to define use cases, prepare large datasets, implement deployment and monitoring pipelines using cloud-native tools, and collaborate with cross-functional teams to operationalize AI solutions.
Top Skills: AWSAws BedrockAzureCqrsGCPKafkaLlmsPythonPyTorchRetrieval-Augmented GenerationScikit-LearnTensorFlow

What you need to know about the Belfast Tech Scene

If asked to name the birthplace of the RMS Titanic, you might not say Belfast. Similarly, if asked to name Europe's leading destination for foreign direct investment in new software development, Belfast might not come to mind. Yet, both are true. The city has emerged as a tech powerhouse, recently ranked among the best in the U.K. for tech careers — especially for software developers. It also leads the U.K. with the highest percentage of software development jobs advertised.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account