Senior Software Engineer

Adarga builds AI systems for customers working in Defence, Security and Resilience. With a core focus on our multimodal data fusion platform, we combine the value of humans and agents to transform information overload into decision advantage. Our team is a hybrid of domain specialists and technologists. We believe this layering of experience is key to building cutting edge AI that is operationally relevant. With our foundations set in NLP, computational linguistics and graph technology we now draw on the latest ideas in agentic AI and knowledge representation, as we set our sights firmly on defining and building the next era of sovereign AI capability. To work at Adarga you have to care deeply about the mission. We exist to support those with the ultimate task: upholding the liberties and values that define our society. We want people who are comfortable with uncertainty, who want to own decisions, who want to drive a vision.

About The Role

Adarga is seeking an experienced generalist engineer to advance the design and implementation of our multimodal data fusion platform. You will take significant components from design through to production, contribute to architectural decisions, and ship. You will work alongside our Chief Architect and a growing engineering team, contributing across the full surface area of the platform: data ingestion, transformation pipelines, semantic data representation, agent frameworks, and the deployment stack that takes our software from cloud to edge to airgap. We are a cross‑functional team and on occasions you will also be expected to deliver on specific customer projects as part of a Mission deployment.

What You Will Do

• Design, build, and operate significant platform components, working closely with the Chief Architect.
• Build and maintain distributed systems that ingest, transform, and serve diverse multimodal data types.
• Contribute to the engineering of our agent framework, integrating existing architectures and emerging alternatives.
• Help define and improve the deployment patterns that allow the platform to run cleanly across managed cloud, customer cloud, on premises, edge, and air‑gapped contexts.
• Partner closely with colleagues across the organization to develop and standardise data platform solutions that solve cross‑product challenges.
• Collaborate with Security and Mission stakeholders to define and enforce standards for access control, data protection, and system integrity.
• Influence architecture, technology selection, and engineering standards across the company.

What We Are Looking For

• 7+ years of hands‑on experience designing and delivering production‑grade software at scale.
• Strong system design skills and can make thoughtful trade‑offs across performance, reliability, scalability, and cost.
• Production proficiency in Python.
• Hands‑on experience architecting systems that handle multiple data modalities.
• Working knowledge of container orchestration and deployment across varied infrastructure contexts.
• Recent, hands‑on experience building with agent frameworks.
• Expertise in AI‑assisted development workflows using tools like Claude Code, Codex, Cursor.
• Strong API and cloud infrastructure fundamentals.
• Experience leading cross‑team technical initiatives spanning multiple systems, and driven adoption through influence.
• Ability to communicate complex technical concepts clearly to a broad audience, including engineers, cross‑functional partners, and end users.

Eligibility

You must be eligible to obtain UK Security Clearance (SC). This typically requires UK nationality, dual nationality or a minimum of five years continuous UK residency. Some projects may require higher clearance, which Adarga will sponsor.

Hiring Process

• Initial conversation with the hiring manager
• Technical interview with Member of Technical Staff
• In‑person systems design exercise
• Offer