Senior Data Engineer, Data Products & APIs

Description

TL;DR Kharon is seeking a full-time London-based Senior Data Engineer.

Location: London, UK

Annual Remuneration: £95,000 - £115,000 salary and discretionary annual bonus

Pay Frequency: Monthly

Probationary Period: 180 days

Work Arrangement: Hybrid, 3-days per week

RESPONSIBILITIES:

• Design, deploy, and maintain data-intensive pipelines and APIs that match real-world entities, relationships, and risk factors, including the deduplication and canonicalization logic behind corporate data, and the checks that validate the quality and consistency of that data.
• Build reusable Python packages and APIs, following software best practices, that expose reconciled entity data as a central service for other Kharon engineering teams.
• Help mature experimental ML models and agentic systems into production, including monitoring, evaluation harnesses, and version control.
• Take an active, big-picture role in driving improvement to Kharon’s technical architecture.
• Work at a fast, AI-assisted development pace (Claude, Cursor); prior LLM tool experience is not required, but comfort adapting to an agentic workflow is.
• Follow good engineering practices: documentation, diagrams, and unit/validation testing.

QUALIFICATIONS:

• Direct experience designing and deploying sophisticated data solutions, ideally including advanced models such as NLP, search algorithms, or graph analytics.
• Strong API design and ownership experience, ideally with FastAPI (Flask/Spring Boot acceptable).
• Strong Python fundamentals, including Pandas, PySpark, or Polars.
• SQL and relational database experience: schema design, access patterns, and query performance optimization.
• Experience designing and maintaining Python libraries used by other engineering teams.
• Experience with data pipeline technologies (Airflow, Kafka, AWS Glue, or equivalents).
• Strong verbal and written communication skills, with the ability to justify architectural decisions to both engineering and business stakeholders.

NICE TO HAVE:

• Experience taking ML models from prototype to production, including monitoring, versioning, and evaluation.
• Experience with graph databases (Neo4j, Neptune) or graph-based data modeling.
• Familiarity with fuzzy-matching/entity-resolution libraries (Splink, Dedupe.io, Senzing, Zingg).
• Experience with Elasticsearch data and query modeling.
• Container-based deployment experience (Docker, Kubernetes).
• Interest or experience in geopolitics, sanctions compliance, or financial risk.

ABOUT KHARON:

Kharon operates at the nexus of global security and is on a mission to revolutionize the current landscape. We take complex data as it relates to global security and empower our clients to not only understand the risk associated with their potential business relationships but to operationalize that data so that they can make the best and most informed decisions possible.

From financial crimes and sanctions to export controls and threat identifications, our tools optimize protection against the types of risks that could otherwise be incredibly dangerous and excessively costly to any business. Serving many of today’s leading global financial and multinational institutions, Kharon products are the most powerful in the space with a precision and depth that is absolutely unparalleled.

When you look at any major global crisis event, we’re providing intelligence that’s at the heart of those circumstances. We connect the dots in a way that’s meaningful. As the world continues to evolve in complexity, so too does the demand for our products. Given the significance of our work and the increasing global reliance on our insights, we are looking for a Senior Data Engineer to join us as we work to shape the way businesses perceive and navigate global risks.

Company Benefits

• Fully-sponsored private health insurance
• Pension plan with 3% employer contribution
• Annual leave plus bank holidays

DISCLOSURES

Kharon is committed to cultivating and maintaining a workplace that is free from harassment and discrimination. All qualified applicants will receive consideration for employment without regard to race, religion, color, national origin, ethnicity, gender, gender identity or expression, sexual orientation or identity, neurodiversity, appearances, age, protected veteran status, or status as a qualified individual with disability.

We are committed to making reasonable adjustments to support disabled applicants and employees. If you require any adjustment to participate in the recruitment process, please contact [email protected]

You must have the right to work in the UK. Kharon is unable to offer visa sponsorship for this role.

UNITED KINGDOM Candidate Privacy Notice

Kharon is committed to protecting your personal data in accordance with the UK General Data Protection Regulation (UK GDPR) and the Data Protection Act 2018. We collect the personal data you submit as part of your application — including your name, contact details, employment history, and qualifications — to assess your suitability for the role. Our lawful basis for processing is legitimate interests (Article 6(1)(f) UK GDPR).

If your application is unsuccessful, your data will be retained for up to 12 months before being securely deleted. If you accept a role, your data will transfer to your employee record.

You have the right to access, correct, or request deletion of your data, to object to or restrict its processing, and to lodge a complaint with the UK data protection authority, the ICO, at www.ico.org.uk. To exercise your rights, contact us at [email protected].

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About Kharon

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