Job Title: Technical Leader – Individual Contributor (Cloud Data Transformation)
Location: London, UK (Hybrid – 2–3 days onsite)
Industry: Financial Markets / Capital Markets Infrastructure
Employment Type: Full-time | Permanent
Overview
We are partnering with a global leader in financial markets infrastructure, currently undergoing an enterprise level modernisation programme of their core platform. This multi-year transformation is focused on rebuilding core data and analytics capabilities using a modern cloud-native stack—and they are looking for a high-calibre Technical Leader (IC) to play a pivotal role.
This an opportunity with significant architectural ownership, suited for a senior technologist who wants to lead from the front, architect cutting-edge solutions at scale, and influence the direction of one of the most essential platforms in global finance.
The Opportunity
You will act as a technical thought leader, shaping and delivering a next-generation data and technology platform in a Python, Azure, and Snowflake ecosystem. You’ll work closely with senior engineers, architects, product teams, and executive stakeholders to define architecture, mentor engineering teams, and deliver on high-impact projects that are critical to the future of the business.
This role does not involve direct line management, but does require top-tier leadership skills, technical authority, and the ability to drive outcomes across multiple teams.
Key Responsibilities
* Lead architectural design and hands-on technical delivery for a major cloud transformation programme.
* Design scalable, secure, and high-performance data systems using Azure, Python, and Snowflake.
* Provide deep technical guidance across multiple teams, acting as the go-to expert for complex engineering decisions.
* Collaborate with platform, product, and enterprise architecture teams to align solutions with long-term strategy.
* Establish and promote modern engineering practices including CI/CD, infrastructure as code, DevSecOps, and automated testing.
* Tackle deep technical debt and modernise legacy systems with a focus on scalability, modularity, and cloud alignment.
* Champion a culture of engineering excellence, documentation, and knowledge sharing.
Ideal Candidate Profile
* 10+ years in software engineering or data architecture roles, with proven experience at enterprise scale.
* Deep hands-on expertise with:
* Azure cloud services (e.g., Data Lake, Synapse, Functions, Event Grid)
* Python for backend, data engineering, and automation
* Snowflake, including performance tuning, architecture, and best practices
* Experience leading or being a key contributor to enterprise-wide transformation projects (cloud migration, platform rebuilds, etc.).
* Deep understanding of data architecture, APIs, and security standards in regulated or high-availability environments.
* Strong influencing and communication skills—able to operate confidently across engineering, architecture, and product.
Nice to Have
* Background in capital markets, financial services, or trading systems.
* Familiarity with Kubernetes, Terraform, and observability tools.
* Azure and/or Snowflake certifications.
* Experience in distributed systems or real-time data processing environments.
What’s on Offer
* Highly competitive compensation package + bonus
* Hybrid working in a central London location
* Work on a high-profile transformation programme with global visibility
* Collaborate with elite-level engineers
* Long-term career path in a stable, globally respected organisation
Interested?
This is a rare opportunity to lead from the front on a truly transformational journey within a cornerstone of global finance. If you're ready to architect the future of data and technology in a modern cloud environment—let’s talk.
mitchell.palmer@twentyai.com