Junior software developer (c#/html/api) Work, Jobs in London, England (with Salaries)

Avaloq CAPI Developer
Luxoft —London
- Maintenance
- English
- Analysis skills
22h
Senior Software Engineer
Csp U.K. —London
- £98,000 - £102,000 a year
- Full-time
- Databases
- Mentoring
- Agile
- Free parking
Quick apply
6h
Senior Product Security Engineer
Blockchain.com —London
- Full-time
- Remote
- AI
- SDLC
Quick apply
Lead Site Reliability Engineer (AWS)
British Council —London
- Azure
- DevOps
- English
14d
Project Manager/Business Analyst - DV Cleared
Turner & Townsend —London
- Full-time
- SQL
- Analysis skills
- Travel
Quick apply
Senior Engineer, Network Observability
CoreWeave Europe —London
- Computer Science
- Engineering
- Bachelor's degree
- Employee assistance programme
Quick apply
Senior Engineering Lead, Index Distribution
London Stock Exchange Group —London
- Full-time
- Hybrid work
- AWS
- Analysis skills
- Mentoring
Senior Software Engineer
Online Filings —London
- £50,000 - £65,000 a year
- Full-time
- Hybrid work
- Computer Science
- Master's degree
- Bachelor's degree
- Employee discount
Quick apply

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Senior Software Engineer
Csp U.K. —London
You'll work alongside experienced engineers, architects, product managers, and technical specialists to design, develop, and deliver high-quality software.
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Our engineers build and maintain the ZigZag Puppy Training mobile app (iOS and Android), with meaningful work across the full stack, and particular…
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Avaloq CAPI Developer

Luxoft -
London

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Job details

22 hours ago

Qualifications

Jira
Technical troubleshooting
Stakeholder collaboration
Mentoring junior staff
Business analysis
Maintenance
English
Technical support
Analysis skills
Confluence
Mentoring
Scripting
Software development
Technical writing
ServiceNow
Agile
Multidisciplinary collaboration
Business requirements
PL/SQL
Communication skills
Banking

Full job description

Project description

We are looking for an experienced (7+ Years) Avaloq CAPI Developer to design, build, and maintain integrations between the Avaloq Core Banking Platform and surrounding banking applications using CAPI (and related Avaloq interface technologies such as AMI). You will play a key role in extending and customizing Avaloq to meet evolving business requirements across the bank's core operations.

Responsibilities

Design, develop, and maintain CAPI-based interfaces between Avaloq and external/internal banking systems

Perform parameterization, customization, and scripting within the Avaloq Core Banking Platform

Analyze business requirements and translate them into robust technical solutions

Build and maintain reusable, high-performing, and reliable code, following best practices for software quality

Troubleshoot and resolve integration and configuration issues across CAPI interfaces

Collaborate with business analysts, architects, and cross-functional engineering teams to deliver end-to-end solutions

Support testing, release management, and deployment processes for Avaloq changes

Produce clear technical documentation for both technical and non-technical stakeholders

Provide ongoing support and maintenance for existing CAPI interfaces in production

Skills

Must have

Proven hands-on experience (4+ years) developing with Avaloq, specifically using CAPI (Avaloq's scripting/customization interface)

Strong knowledge of Oracle PL/SQL and Avaloq Script

Solid understanding of core banking processes and products (e.g. payments, securities trading, settlement, client onboarding, or credit/loans — tailor to your team's focus)

Experience with the Avaloq Core Banking Platform's architecture, data model, and interface layer (CAPI/AMI)

Familiarity with software development lifecycle practices and Agile ways of working

Strong analytical and problem-solving skills, with the ability to work through complex technical requirements

Excellent communication skills, with the ability to explain technical concepts to non-technical stakeholders

Nice to have

Experience with other Avaloq interfaces (AMI, SWIFT messaging, Reporting)

Prior experience in a financial services or private banking environment

Familiarity with JIRA, Confluence, and ServiceNow

Avaloq certification(s)

Experience mentoring junior developers or leading small technical workstreams

Other

Languages

English: C1 Advanced

Seniority

Senior

London, United Kingdom of Great Britain and Northern Ireland

Req. VR-124446

Avaloq

BCM Industry

11/08/2026

Req. VR-124446

Apply Now

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junior software developer (c#/html/api) jobs in london, england

Avaloq CAPI Developer

Senior Software Engineer

Senior Product Security Engineer

Lead Site Reliability Engineer (AWS)

Project Manager/Business Analyst - DV Cleared

Senior Engineer, Network Observability

Senior Engineering Lead, Index Distribution

Senior Software Engineer

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