Senior Full-Stack Software Engineer
Project description
Our client is a leading global Financial Market data provider who runs a number of change programs to deliver high\-quality software that connects Financial Markets across the globe in a real\-time, high frequency, and low\-latency data management chain. The projects are technically challenging in an environment that is very engaging.
The team is responsible for building scalable, reliable, and high\-quality software solutions that support onboarding of new data feeds, implementation of complex business and index methodologies, and development of reporting capabilities across BAU platforms.
The environment is primarily based on SQL Server, C\#.NET, and Python, with exposure to AWS, Angular, Terraform, Ansible, and selected legacy technologies where required. Strong emphasis is placed on automation, AI\-assisted engineering, quality assurance, and operational stability.
The goal is to establish a consistent integration approach by building and evolving reusable services, APIs and supporting infrastructure \- leveraging AWS native services where appropriate—alongside strong data modelling and automated testing (including agentic AI\-assisted tooling) to improve efficiency, throughput and quality.
Responsibilities
Contributes and leads development through high\-quality software design and architecture
Identifies, prioritises, and performs tasks in the software development lifecycle
Develops tools and applications by producing clean, eficient and scalable code
Advocate for and implement engineering guidelines for excellence, including automation, code reviews, continuous
integration/continuous delivery (CI/CD), and performance tuning
Ensures high quality, reliable products using unit, integration and BDD test suites
Collaborates closely with business and engineering partners to deliver products, services, improvements and
solutions to meet customer needs and align with goals of the business and engineering lines
Communicates with clarity, precision, and influence, presenting complex information in a clear and concise format
that is appropriate for the audience
Drive a culture of engineering excellence through mentorship, peer reviews, and promoting standard methodologies
in software design and development
Continuously optimize systems for performance, scalability, and security in a fast\-paced, production environment
Skills
Must have
Over 8\+ years proven experience as a Software Developer, architecting, developing and testing large\-scale data intensive applications in an enterprise environment
Solid Prior experience of Database modelling / design, performance tuning, and optimization
Thorough knowledge of application programming for data intensive applications on SQL Server using Stored Procedures / tSQL
Proficiency in C\# .NET, including designing and implementing RESTful APIs and microservices
UI development for business\-critical applications in Angular, JavaScript, HTML/CSS and other modern UI technologies
Strong understanding of AWS cloud infrastructure and native services
AWS EC2, EKS, Lambda, SQS, SNS, AWS Glue etc
Experience with unit testing frameworks (e.g. MSTest, tSQLt) and Behaviour\-Driven Development (BDD) tools (e.g. Cucumber, Mocha).
Proven ability to deliver high\-quality, maintainable code and systems.
Extensive experience in software engineering principles, CI/CD tools and automation processes
Strong analytical skills and a problem\-solving mentality
Some experience of Business and Technical Analysis, Quality Assurance, Delivery Management, and/or Emerging Technology and Governance
Experience working in an agile environment with a focus on collaboration, automation, and continuous improvement
Experience with Financial Markets in Equities and / or Fixed Income
Prior experience with Java (including SpringBoot) and / or Python for cross\-platform integrations, greenfield and legacy systems is hugely advantageous
Familiarity with Sybase and PostgreSQL, including database management and optimization
Nice to have
Financial services experience is highly preferred.
Articulate, energetic person able to work alone or as part of a team
Excellent attention to detail but an ability to think laterally to solve business problems
Excellent interpersonal skills, both written and verbal, with the ability to work efectively with both technical and nontechnical
collaborators
A passion for continuous learning and improving software engineering practices
Ability to learn quickly, work under pressure and to tight deadlines
Demonstrated ability to mentor and grow junior engineers
Creative, results driven, self\-motivated and solutions oriented
Demonstrates a can\-do attitude, exhibits self\-confidence
Other
Languages
English: C1 Advanced
Seniority
Senior
London, United Kingdom of Great Britain and Northern Ireland
Req. VR\-123127
Domain Specific Languages
BCM Industry
02/06/2026
Req. VR\-123127
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