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For Companies At a Glance
- Tasks: Build and operate cutting-edge AI agent capabilities in production environments.
- Company: Join a dynamic team at the forefront of AI and cloud computing.
- Benefits: Enjoy a competitive salary, hybrid work options, and professional growth opportunities.
- Other info: Collaborative environment with a focus on reliability and safety in AI systems.
- Why this job: Make a real impact by developing innovative AI solutions for diverse industries.
- Qualifications: PhD or Master's in relevant fields and 3+ years of experience in software systems.
The predicted salary is between 50000 - 65000 £ per year.
Location: Northern Ireland (Hybrid)
Hours: Permanent Full-time
Salary: Very competitive
Hiring: ASAP
About ISx4
ISx4 is a dynamic and innovative team, harnessing the power of artificial intelligence and cloud computing to drive real-world impact. We work at the forefront of AI technology, leveraging leading cloud platforms to build scalable, intelligent solutions. Our industry experience helps derive competitive advantage for our clients, taking them on the journey from Hindsight, through Insight to Foresight. We create, deliver and manage Analytics and AI solutions across all sectors including finance, government, life sciences, private sector and sport. Our services are increasingly in demand as Analytics and AI services become a core competency in every area of the business. ISx4 are formal certified partners with Microsoft, AWS, GCP, SAS, IBM and Databricks and have customers & staff located globally. These strategic partnerships allow us to remain vendor-neutral and focused on our core competency area of analytics services delivery. ISx4 have an ambitious hiring plan for the next few years with new hires at all levels to support the strategic growth of the firm.
The Role
We are looking for an AI Engineer to help build and run customer-facing AI agent capabilities in production. You will work in a team of highly skilled engineers delivering reliable, secure, and observable agent-driven workflows. Our orchestration backbone is Akka (Java), deployed on AWS, with top observability/evaluation platform and Postgres + pgvector for retrieval. This is an engineering-first role: you will focus on distributed systems, orchestration, robustness, and production operations—bringing AI agent components into a dependable runtime.
What You Will Do
- Build and operate customer-facing services that incorporate AI agents and tool-using workflows
- Develop orchestration/runtime components using Akka (Java) (actors/streams, supervision strategies, backpressure, concurrency)
- Integrate retrieval components using Postgres + pgvector (query patterns, latency considerations, embedding/retrieval flows)
- Instrument, monitor, and improve agent quality using observability tools (quality signals, evaluation/regression tracking, incident triage)
- Engineer for reliability and safety: timeouts, retries, idempotency, graceful degradation, auditability, and secure service integration
- Collaborate with product/engineering stakeholders to translate requirements into robust designs, delivery plans, and runbooks
Must-Have Requirements
- Eligible and willing to pass relevant background checks
- PhD or Master’s degree in Computer Science / AI / Data Science / Machine Learning / Engineering (or equivalent practical experience)
- At least 3+ years post-graduate experience delivering production software systems and building and operating scalable backend/distributed systems (high-concurrency services, reliability patterns, production operations)
- Strong Java engineering skills and experience with concurrent/distributed systems
- Experience building customer-facing services with high reliability expectations (timeouts, retries, observability, performance)
- Familiarity with AWS fundamentals for deploying and operating services (including security/IAM awareness)
- Strong engineering practices: testing, code review, CI/CD, documentation, and operational readiness
Nice to Have
- Hands-on experience with Akka in production (actors/streams; reliability patterns such as supervision)
- Python experience (useful for integrating AI/agent tooling and adjacent components)
- Experience with LLM/agentic systems (tool calling, structured outputs, evaluation practices)
- Experience with Arize (or similar ML/LLM observability tooling)
- Experience with Postgres + pgvector and retrieval optimisation
- Containerisation/orchestration (Docker, ECS/EKS/Kubernetes)
- Security-by-design experience for AI systems (PII handling, prompt injection mitigation, least privilege, audit trails)
What We Offer
- Work on a state of the art high profile, production AI system with modern runtime and observability practices
- A collaborative Northern Ireland-based engineering team with hybrid flexibility
- Competitive package and professional growth opportunities
Hiring Process
- Intro call
- Technical interview (Java/Akka + systems design)
- Final conversation (team fit + security requirements)
AI Engineer (Agentic Systems) in London employer: ISx4
Contact Detail:
ISx4 Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land AI Engineer (Agentic Systems) in London
✨Tip Number 1
Network like a pro! Reach out to folks in the AI and engineering space, especially those who work at ISx4 or similar companies. A friendly chat can open doors and give you insights that job descriptions just can't.
✨Tip Number 2
Show off your skills! If you've got a portfolio or GitHub with projects related to AI, Java, or distributed systems, make sure to highlight them during interviews. Real-world examples speak volumes about your capabilities.
✨Tip Number 3
Prepare for technical interviews by brushing up on Akka and AWS fundamentals. Practise coding challenges and system design questions that are relevant to the role. We want to see how you think and solve problems!
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you're genuinely interested in joining our team at ISx4.
We think you need these skills to ace AI Engineer (Agentic Systems) in London
Some tips for your application 🫡
Show Off Your Skills: Make sure to highlight your experience with Java and distributed systems in your application. We want to see how you've tackled real-world challenges and built reliable services, so don’t hold back!
Tailor Your Application: Take a moment to customise your application for the AI Engineer role. Mention specific projects or experiences that align with our focus on AI agents and orchestration. It’ll show us you’re genuinely interested!
Be Clear and Concise: When writing your application, keep it straightforward. Use clear language and structure your thoughts well. We appreciate a well-organised application that gets straight to the point!
Apply Through Our Website: Don’t forget to submit your application through our website! It’s the best way for us to receive your details and ensures you’re considered for the role. We can’t wait to hear from you!
How to prepare for a job interview at ISx4
✨Know Your Tech Inside Out
Make sure you’re well-versed in the technologies mentioned in the job description, especially Java and Akka. Brush up on distributed systems and orchestration concepts, as these will likely come up during technical discussions.
✨Showcase Your Problem-Solving Skills
Prepare to discuss specific challenges you've faced in previous roles, particularly around building reliable customer-facing services. Use the STAR method (Situation, Task, Action, Result) to structure your answers and highlight your contributions.
✨Understand the Company’s Vision
Familiarise yourself with ISx4's mission and the sectors they operate in. Be ready to discuss how your skills can contribute to their goals, especially in AI and analytics. This shows genuine interest and alignment with their objectives.
✨Ask Insightful Questions
Prepare thoughtful questions about the team dynamics, project expectations, and the technologies they use. This not only demonstrates your enthusiasm but also helps you gauge if the company culture is the right fit for you.