Backend Engineer, AI Systems
This listing is for a Backend Engineer, AI Systems role at Bjak, in United Kingdom. The listing describes it as a full-time position.
DGJ summary of this job
Our own short read of this listing, built only from the facts it gives. The employer’s original text follows further down.
This listing is for a Backend Engineer, AI Systems role at Bjak, in United Kingdom. The listing describes it as a full-time position.
From the advert, the main requirements are 3+ years of experience.
The advert mentions Python, Node.js, SQL, Kubernetes, Docker, REST, PyTorch and LLM among the skills and tools for this role.
The employer does not state a salary in this listing; DGJ Insight below shows an official pay benchmark for the place where one exists.
Visa sponsorship is not mentioned. Applicants from outside United Kingdom should check the official work permit route before applying.
Dev Global Jobs found this job on Arbeitnow on Nov 14, 2026.
- Employer
- Bjak
- Location
- United Kingdom
- Job type
- Full-time
- Pay
- Not stated by the employer
- Experience asked
- 3+ years
- Found
- Nov 14, 2026 on Arbeitnow
- Employer text
- 312 words, about 1 min to read
- Apply only on the official page (arbeitnow.co.uk). Dev Global Jobs is not the employer and never asks for a fee.
- Compare your own experience with the 3+ years the advert asks for, and show it clearly near the top of your CV.
- Mirror the skills the advert names (Python, Node.js, SQL and Kubernetes) in your CV where you really have them; applicant tracking systems look for these words.
- Read the employer’s full text below (about 1 min) before you apply.
- Build or check your CV with the free DGJ CV Builder.
DGJ Insight
Our own data about this role and place, from official statistics and our live job index.
Source: OECD Average annual wages, 2025
UN living-cost index for United Kingdom (ICSC post adjustment 76.4), as of 1 Oct 2026.
Source: ICSC post adjustment classifications (icsc.un.org)
- Skilled Worker visa: Job offer from a licensed sponsor at the required skill and salary level; English requirement
- Health and Care Worker visa: Eligible health and social care roles with a licensed sponsor
- Global Talent visa: Endorsement as a leader or potential leader in a listed field
Official routes: UK Visas and Immigration (GOV.UK)
About the role
Full text from the employer, as published on Arbeitnow, arranged into sections. Nothing added or removed.
01About Act
There are over 5 billion users using basic applications today such email, notes, tasks, calendar and they're not AI-native. Our mission is to build proactive applications for anyone in the world, who are not used to complex prompting. We aim to bring intelligence to conversations, errands, organising and workflows, with minimal to no prompting.
Our first application is an agent-first mobile communication app. We believe building applications that users use daily for communication, coordination and collaboration needs will help integrate AI into their lives. The net effect is to eliminate misinformation, achieve low coordination costs, enable high quality tasks and collaboration at scale with minimal or little prompting.
02Role
Build and maintain backend services and APIs for AI-powered applications
Develop inference orchestration systems that connect LLMs, application services and external tools
Design APIs for streaming responses, asynchronous processing and real-time interactions
Improve system performance through caching, batching, concurrency and database optimisation
Implement monitoring, logging, alerting and error handling for production services
Diagnose and resolve production issues involving latency, service failures and high traffic
Work with ML, frontend and mobile engineers on API design, system integration and deployment
03Requirements
3+ years of backend software engineering experience building production systems
Strong programming skills in Python, Node.js or similar backend technologies
Experience designing and maintaining REST or gRPC APIs, databases and distributed services
Understanding of asynchronous processing, concurrency, caching and message queues
Experience building scalable services and optimising latency, throughput and resource usage
Experience with SQL or NoSQL databases, Docker and cloud infrastructure
Ability to debug production issues using logs, metrics and distributed tracing
04Nice to Have
Experience integrating LLM APIs, inference services or AI-powered applications
Experience with model serving, streaming inference or orchestration frameworks
Experience with Kubernetes and container orchestration
Familiarity with PyTorch, vLLM or open-source model deployment
Experience building real-time communication, messaging or high-traffic
Find Jobs in United Kingdom on Arbeitnow
Ask CSI about this job
Answers link to jobs and tools on Dev Global Jobs.
Review Dev Global Jobs
Used this site to find a job? Tell other job seekers what worked and what did not.