Jr. C# Developer

Company: Lorien
Apply for the Jr. C# Developer
Location: London
Job Description:

Hybrid Working – London – 2 days a week on site.

Lorien’s leading banking client is looking for a Junior C# Developer to join them, this role is to maintain the Global Settlement platform, covering both the internet and intranet user interfaces.

This role is based in London.

This role will be Via Umbrella.

Working in a Hybrid Model of 2 day a week on site.

Core Accountabilities of Role

Development Planning & Design

  • Effort Estimation – Produce realistic time‑and resource‑estimates for all development assignments.
  • Requirement Elaboration – Work hand‑in‑hand with the Business Analyst to clarify and expand functional specifications.
  • High‑Level Architecture – Create and maintain high‑level design artefacts that outline system structure, data flows, and integration points.
  • Traceability Management – Implement and sustain end‑to‑end traceability, linking every requirement to its corresponding design, code, and test artefacts.

Code Development & Quality Assurance

  • Component Development & Testing – Build product components, execute comprehensive functional tests, and verify that they meet the defined acceptance criteria.
  • Architectural Reviews – Participate in design‑review sessions, contribute capacity‑planning insights, and define indexing/partitioning strategies for high‑volume batch jobs.

Documentation, Standards & Governance

  • Technical Documentation – Produce clear design specifications, interface contracts, and deployment guides.
  • Code Review & Standards Enforcement – Conduct peer reviews, ensure adherence to coding standards, and verify compliance with the SDLC, risk‑management, and security policies.

Project & Task Management

  • Task Status Updates – Keep work‑item statuses current in the project‑tracking system, highlighting progress, impediments, and completed deliverables.

Support & Incident Resolution

  • Level‑3 Production Support – Investigate critical production incidents swiftly, deliver hot‑fixes or work‑arounds, and mentor Level‑1/Level‑2 support teams on root‑cause analysis and remediation techniques.
  • Escalated Application Support – Participate in higher‑severity support activities as required, ensuring minimal service disruption.
  • Liaise appropriately with other platform IT teams upstream and downstream as and when required for assigned tasks
  • Strong skills in C# and .NET Framework 3.5/4.0/4.6
  • Intermediate level PL/SQL ability. (Note: we use Microsoft SQL Server 2019 and Oracle 19c)
  • Basics of performance tuning of SQL (Any RDBMS)
  • Basics of XML + XSL + XSLT
  • Use of unit‑testing strategies
  • Educated to degree‑level at minimum in a numerate or technical discipline
  • Python
  • Good knowledge Linux/Unix OS & its commands
  • Strong interest in understanding the business needs
  • Source code refactoring
  • Experience on LINUX.
  • Familiarity with agile methodologies and scrum practices.
  • Familiarity with DEVOPS Tools (Team City / Jenkins / Bitbucket / Artifactory).
  • Strong analytical skills.
  • Quality‑focused.
  • Ability to prioritise work effectively in a dynamic, ever‑changing, environment.
  • Confidence in working closely with both business and IT stakeholders.
  • Open and hands‑on approach.
  • Strong teamwork focus

Conduct

  • Demonstrate proactivity, transparency and accountability for identifying and managing conduct risks
  • Consider the implications of your actions on colleagues, partners and clients before making decisions, and elevate issues to your manager when unsure.

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Posted: May 31st, 2026