Agentic AI Engineer – Java/Kotlin Reading, Berkshire | Hybrid – 1 day per week in the office | Up to £115,000 We're working with a major UK organisation investing significantly in
AI and modern engineering , and we're looking for an experienced
Agentic AI Engineer
to join a highly capable technology function.
This isn't simply an LLM integration role. You'll work at the intersection of
Agentic AI, Software Engineering, Architecture and Data , partnering directly with business stakeholders to identify complex operational problems and build agentic solutions that deliver genuine business value. This is an excellent opportunity for an experienced engineer who enjoys solving ambiguous problems, can move comfortably from discovery and rapid prototyping into robust software engineering, and wants to help shape how
Agentic AI is applied within a large-scale organisation .
What you'll be doing
Work directly with business stakeholders to understand complex and sometimes poorly defined operational challenges. Identify opportunities where
Agentic AI and automation
can materially improve existing business processes. Design, prototype and implement agentic systems, rapidly iterating solutions in collaboration with end users. Apply
systems thinking and data analysis
to identify root causes, friction points and opportunities for improvement. Use strong
software engineering and architecture principles
to take ideas beyond proof-of-concept. Explore short-term solutions capable of delivering immediate business value while considering longer-term scalability. Help shape technical architecture and product roadmaps based on insights gained from real-world business problems. Communicate complex technical ideas clearly and influence both technical and non-technical stakeholders.
What we're looking for
You'll need strong hands-on software engineering credentials combined with genuine experience building
agentic systems . Essential experience Strong commercial software engineering experience within complex environments. Proven hands-on development experience with
Java and/or Kotlin , particularly building reliable backend services or modern applications. Practical experience of
Agentic Engineering , including agentic coding environments and automated engineering workflows. Experience building and implementing agentic systems using
agent orchestration and frameworks . Advanced
prompt and context engineering
experience. Understanding of
state and memory management
within agentic architectures. Experience implementing
deterministic guardrails and evaluations (Evals) . Experience integrating agents with external
tools and APIs . Knowledge of emerging agentic protocols, including
MCP, A2A and UCP . Experience working with cloud-based data platforms.
Snowflake
experience would be particularly relevant. Experience deploying and operating solutions within cloud environments.
GCP
exposure would be advantageous. Strong analytical skills, with the ability to translate raw data into meaningful and actionable insights. Excellent communication and influencing skills, with the confidence to question assumptions and work with stakeholders to identify the root cause of problems.
Desirable experience
Data science experience, particularly using data to identify meaningful patterns and actionable insights. Experience applying
systems-thinking techniques
to complex and dynamic business problems.
The opportunity
This is a strong opportunity for an engineer who wants to operate beyond conventional AI development.
You'll have scope to combine
hands-on Java/Kotlin engineering with Agentic AI, architecture, experimentation and business problem-solving , focusing on practical use cases and tangible outcomes rather than AI in isolation. You'll be joining a substantial technology environment where modern engineering, cloud, data and AI are central to solving complex business challenges.
Location & package Salary:
Up to
£115,000 , depending on experience Location:
Reading, Berkshire Working pattern:
Hybrid – 1 day per week in the Reading office Interested? If you're an experienced software engineer with genuine hands-on experience building
Agentic AI systems , particularly alongside a strong
Java/Kotlin engineering background , we'd be keen to hear from you. Apply now or get in touch for a confidential discussion about the opportunity.
TPBN1_UKTJ
Agentic AI Engineer – Java/Kotlin in London employer: Halian Technology Limited
Join one of the UK's fastest-growing HealthTech scale-ups in Wokingham, Berkshire, where you'll be part of a dynamic team dedicated to transforming healthcare delivery through innovative mobile technology. With a strong focus on employee growth and collaboration, this company offers a unique opportunity to work on mission-critical applications that directly enhance patient care, all while enjoying a hybrid working model and competitive benefits. Be part of a culture that values innovation, teamwork, and making a real-world impact.
