Skip to main content
Post your CV and find your next job on Indeed!

Junior Developer jobs in London

Sort by: -
    • Participate in code reviews and mentor junior developers where required.
    • We are looking for senior Python Developers with strong experience in *trading and…
    • Mentor junior software engineers and actively support their technical growth and development.
    • You are responsible for carrying out critical technology solutions…
    • View all JPMorganChase jobs - London jobs - Full Stack Developer jobs in London
    • Salary Search: Full-Stack Software Engineer III salaries in London
    • See popular questions & answers about JPMorganChase
    • Identify and automate remediation for recurring issues and developer pain points to improve operational efficiency.
    • Experience mentoring junior software engineers to improve their skills and make them more effective, product software engineers.
    • With its strong 55-year heritage and deep industry expertise, Capgemini is trusted by its clients to address the entire breadth of their business needs, from…
    • Manage and mentor junior developers.
    • Experience leading and/or mentoring junior developers.
    • Coordinate with other developers, UX designers and data engineers to…
  • View similar jobs with this employer
    • Mentor and support junior developers.
    • This is a hands-on technical role where you’ll be responsible for designing, developing and maintaining bespoke WordPress…
  • View similar jobs with this employer
    • Mentor and support junior developers.
    • This is a hands-on technical role where you’ll be responsible for designing, developing and maintaining bespoke WordPress…
    • Work with our Australian and UK-based developer teams while guiding and mentoring junior and mid-level developers.
    • Experience leading teams or mentoring others.
    • Mentor junior developers, providing guidance on best practices and code reviews.
    • You are expected to be involved in the design and architecture of the solutions…
    • Mentor junior developers, providing guidance on best practices and code reviews.
    • You are expected to be involved in the design and architecture of the solutions…
    • Implement and maintain developer-led automated testing solutions.
    • Coach and mentor junior analysts and grads.
    • Ownership and delivery on components (Java/Kotlin)…
    • NET developer to design, build, and innovate with a focus on quality, continuous improvement, and automation.
    • Partner with Development and Architecture teams to…
    • We’ll support you with visa assistance, travel costs, and your first month of accommodation (conditions apply).
    • Full-time availability from early or late 2027.
    • Conduct peer reviews, provide technical leadership, and mentor junior engineers.
    • We are seeking a highly skilled and hands - on Lead Java Engineer with AI…

People also searched:

junior front end developer
junior web developer
junior software developer
web developer
software developer
junior software engineer
sql
trainee
full stack developer
junior data analyst

Job Post Details

Python Developer - job post

Xcelyst
London•Hybrid work
£950 - £1,100 a year - Permanent, Temp to perm, Full-time, Fixed term contract
Responded to 75% or more applications in the past 30 days, typically within 1 day.

Job details

Pay

  • £950 - £1,100 a year

Job type

  • Fixed term contract
  • Temp to perm
  • Permanent
  • Full-time

Location

London•Hybrid work

Benefits

Pulled from the full job description

  • Annual leave
  • Life insurance
  • Unlimited paid holidays
  • Free parking
  • Additional leave
  • Discounted or free food
  • Casual dress

Full job description

Hi,

We are looking for senior Python Developers with strong experience in trading and risk management systems within investment banking. The role involves building backend applications and data processing logic supporting risk calculations, trade workflows and reporting.

Key Responsibilities

  • Develop and enhance Python-based applications for trading and risk use cases
  • Build data processing pipelines and automation scripts for trade, risk and reconciliation workflows
  • Work with large financial datasets to support PnL, risk and reporting requirements
  • Contribute to system design, architecture and scalability decisions
  • Collaborate with quants, traders and risk teams to translate business requirements into technical solutions
  • Develop and integrate REST APIs and backend services
  • Ensure high code quality and test coverage
  • Participate in code reviews and mentor junior developers where required

Must-Have Skills

  • Strong experience in Core Python development
  • Strong exposure to enterprise-grade front-office trading and risk platforms (e.g., Quartz, SecDB, Athena, Kanon, Beacon or equivalent), with integration across pricing, risk and trade lifecycle workflows
  • Strong SQL skills with ability to handle complex queries and large datasets
  • Experience with Python libraries (Pandas, NumPy) for data processing
  • Experience building RESTful APIs/services (Flask / FastAPI / Django)
  • Strong understanding of data structures and performance optimization
  • Experience working with large-scale data processing and performance optimization
  • Working knowledge of Unix / Linux environments and basic shell scripting

Domain Experience (Critical)

  • Experience working in Investment Banking / Capital Markets environments
  • Hands-on exposure to:
  • Market Risk / CCR / PnL / Trade lifecycle / Reconciliation
  • Understanding of financial products such as:
  • Derivatives (swaps, futures, options), bonds

Good-to-Have

  • Exposure to PySpark or large-scale data processing
  • Experience working with quants or pricing models
  • Basic scripting (Unix / Bash)
  • Prior experience in global banking environments

Experience

  • ~9-15 years of experience.

Please share your CV to ipshita.das@xcelyst.com

Pay: £950.00-£1,100.00 per year

Benefits:

  • Additional leave
  • Casual dress
  • Discounted or free food
  • Enhanced maternity leave
  • Free parking
  • Life insurance
  • On-site parking
  • Unlimited paid holidays
  • Work from home

Work Location: Hybrid remote in London

Let Employers Find YouUpload Your Resume