Applied AI Engineer

BJAK; Greater London; Hybrid; GBP 70,000 - 110,000; Full time

Job summary

BJAK is seeking applied AI engineers to build AI-native systems for our AI Neobank app in the UK. This role combines hands-on engineering with real production ownership to automate workflows and improve financial services for users.

You will design and ship AI agents, LLM apps and automation, collaborate with product and engineering teams, and address constraints like accuracy, latency and security while working in a hybrid UK office, at least 3 days per week.

Qualifications

• Hands-on engineering experience building AI-enabled systems.
• Experience creating AI agents, LLM apps or RAG workflows.
• Proven ability to ship working systems with reliability.

Responsibilities

• Build AI agents and automations to solve real customer and ops problems.
• Apply LLMs, retrieval, tool calling and guardrails to workflows.
• Collaborate with product and engineering to ship iterative AI features.

Skills

Hands-on engineering

AI agents / LLM apps

Production ownership

Ship & reliability

Fintech experience

Job description

The original mission of BJAK is we believe people deserve smarter ways to plan, save and grow their money. This is the origin of our name.

Started in 2019, we built the first mobile-first, insurance platform, enabling insurance to be accessible online by millions in the region. Today, its the leading insurance platform in Southeast Asia.

Today, we are expanding ways to help people in the region — this includes spending, saving, investing, exchanging, travelling, and more. Our mission is help people get more from their money every day.

We have teams working around the world, with over 20 nationalities from our offices and remotely, who truly enjoys their work. We are looking for the most talented and driven people we can find. We are looking for people who work for their passion, not counting hours. Who loves building great next-generation products, not status quo. Who cares about redefining how everyone around us can get the best financial applications, not for an exclusive few.

If you're this person, we'd love to talk to you.

The Role

We are looking for applied AI engineers to build AI-native systems for BJAK's AI Neobank app.

This is not a research-only role. We need builders who can use AI to automate real workflows, improve products, reduce manual work and make financial services easier for users and teams.

What You Will Build

• Build AI agents, workflows, tools and automations that solve real customer, product and operations problems.
• Apply LLMs, retrieval, tool calling, evaluations, guardrails and automation to practical financial workflows.
• Create AI-assisted experiences for onboarding, support, KYC, risk review, CRM, operations, document handling and product intelligence.
• Work with product and engineering teams to identify what is worth building, then build it quickly and improve it in production.
• Design around real constraints: accuracy, hallucination risk, latency, cost, security, compliance and user trust.
• Turn manual processes into reliable AI-enabled systems that can scale.

What We Look For

• Hands-on engineering ability, not just AI strategy or management experience.
• Experience building AI agents, LLM apps, RAG systems, automation workflows, copilots or AI-enabled tools.
• Good judgement on what should be automated and what should not.
• Able to ship working systems, test quality and improve reliability over time.
• Fintech, banking, support automation, risk, KYC, fraud, CRM or operations automation experience is a strong plus.

This Role Is Not For

• People who only want research projects with no production ownership.
• Candidates who treat AI as demos instead of working systems.
• Engineers who do not care about evaluation, reliability or user impact.
• People who overclaim AI impact without evidence.
• Builders who cannot work with product, ops and business teams.

The Bar

We are looking for engineers with real technology career highlights. A strong highlight is not just working at a famous company. A strong highlight means you personally helped build, ship or scale a serious product, platform or system.

Location

This role is based in UK. This is a hybrid role. You are expected to work from our UK office at least 3 days per week.

Language

English is our main working language across global teams. Strong English communication is required.

Interview Process

Our process is designed to move fast:

• Online assessment or practical task
• Technical interview
• CEO / final round

For strong candidates, we aim to complete the process and make an offer within 1 week from the start of the interview process. Candidates who complete assessments quickly will be prioritized.