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Lead Software Engineer, AI Email App

bjakcareerUnited KingdomActAI Engineering
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Salary
Not listed
Job type
Full-time
Work mode
Remote
Experience
Lead
Posted
28 Sept 2026
Status
Open · checked 7d ago

About this role

Bjakcareer seeks a Lead Software Engineer, AI Email App based in the United Kingdom to oversee the engineering layer that transforms artificial intelligence capabilities into a dependable product. This position suits an experienced technical leader who enjoys hands-on coding and directing architecture for AI-powered applications.

Role Overview

Bjakcareer is hiring a Lead Software Engineer, AI Email App in the United Kingdom to build proactive applications for global users. The professional in this role will guide the engineering strategy across backend systems, APIs, and client platforms while supervising a compact team of senior engineers.

Key Responsibilities

Direct application engineering strategy and execution across mobile, desktop, and backend layers.
Create dependable system designs for workflows driven by AI, incorporating state management, orchestration, retries, and failure handling.
Develop APIs and abstractions linking artificial intelligence systems to user experiences.
Direct a compact, senior engineering group through design evaluations, code reviews, and direct mentorship.
Balance trade-offs involving latency, cost, security, reliability, and user experience.
Establish production foundations including monitoring, observability, testing, and operational standards.
Collaborate with machine learning leadership to convert model functions into stable product features.
Maintain simple, scalable, and maintainable architectures while moving quickly.

Requirements

Extensive background leading application or product engineering for complex systems.
Practical experience creating and deploying production backend systems.
Background developing products or systems that integrate modern machine learning or large language model capabilities.
Technical judgment sufficient to make decisions given incomplete information.
Capability to operate across client and backend platforms with deep knowledge in at least one area.
Strong preference for ownership, delivery, and real-world learning.
High standards regarding engineering fundamentals, reliability, and code quality.

Skills and Tools

Backend systems
APIs
Mobile platforms
Desktop platforms
Machine learning integration
Large language models

About the Company

Bjakcareer builds proactive applications for users worldwide to bring intelligence to everyday conversations, errands, organizing, and workflows without complex prompting. The organization operates as a small, hands-on team emphasizing strong individual ownership, quick decision-making, and solid engineering foundations.

How to Apply

Interested candidates should visit the official bjakcareer careers page to submit an application.

Skills and tech stack

LLM

Questions candidates ask

What is the location of the role?

The position is located in the United Kingdom.

What will the selected engineer own?

The engineer will own the application engineering strategy and execution across backend, mobile, and desktop platforms, along with system architecture for AI-powered workflows.

Is leadership experience required?

Yes, the role requires significant experience leading application or product engineering for complex systems and leading a small, senior engineering team.

What does the interview process look like?

The evaluation includes three to four interviews conducted through virtual meetings or onsite visits, assessed by technical team members.

Ready to apply?

The application is on the official bjakcareer careers page.

Apply on company site