Senior Python Developer - Digital Trading Analytics

London
1 week ago
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We are looking for a Senior Python Developer to design, build, and maintain high‑performance, scalable solutions supporting financial market analytics. This is a high-impact role sitting at the intersection of complex data engineering and front-office trading systems. You will play a key role in shaping engineering practices, guiding architectural decisions, and leading junior engineers to deliver business-critical solutions.

Financial Engineering: Design and deploy scalable, high-performance software for data processing and trading analytics.
Technical Leadership: Lead architectural decisions, conduct rigorous code reviews, and mentor junior engineers.

Stakeholder Collaboration: Partner with Traders, Quants, and Product Managers to translate market requirements into robust technical solutions.

DevOps Excellence: Drive CI/CD automation, TDD/BDD practices, and containerised deployments via Kubernetes.

Performance Tuning: Diagnose and resolve bottlenecks in production systems to ensure low-latency data delivery.

Technical Profile

Python Mastery: Expert-level Python 3.9+ (Design Patterns, OOP, logical data modelling, pandas, SQLAlchemy).

Data Engineering: High-scale workload experience using Parquet or Arrow.

Database Expert: Mastery of SQL Server or PostgreSQL (tuning, joins, transactions, and complex aggregations).

Cloud & Infrastructure: Hands-on experience with AWS or Azure, Docker, and Kubernetes (Helm, StatefulSets).

Automation: Proficiency in CI/CD pipelines (Azure DevOps/Jenkins) and Python test automation.

Qualifications & Domain

Background: 7+ years of professional software development experience.

Domain: Proven track record within Financial Services (Investment Banking, Hedge Funds, or FinTech).

Education: Bachelor's degree or higher in Computer Science, Engineering, or a related quantitative field.

Communication: Exceptional ability to engage with business stakeholders and thrive in a fast-paced environment.

Randstad Technologies is acting as an Employment Business in relation to this vacancy

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