Java developer Work, Jobs in London Tw2 (with Salaries)

Backend Engineer
Metamindz —London
- From £70,000 a year
- Full-time
- System design
- Master's degree
- In-person
Quick apply
5h
JAVA DEVELOPER
Santriya Technologies —London
ML Engineer - Statistical Integrity (Financial Crime)
Wise Australia Investments —London
- £87,500 - £111,000 a year
- Computer Science
- Java
- SQL
1d
Java Software Engineer
Durlston Partners —London
- Up to £150,000 a year
- Java
- Software development
- Python
Software Engineer
CELA REMIT LIMITED —Harlow
- £38,290 - £54,700 a year
- Full-time
- Hybrid work
- Computer Science
- Software troubleshooting
- Engineering
- Free parking
- Health & wellbeing programme
Quick apply
Senior Java Developer - London - Fintech
Adaptive Financial Consulting —London
- Hybrid work
- Java
- Employee assistance programme
- Life insurance
Quick apply
14d
Java Developer
iSAM Securities —London
- Software development
- Agile
- Communication skills
Associate, Java Engineer, BGM Data & Analytics
BlackRock Investments —London
- Hybrid work
- Analysis skills
- Agile
- In-person
- Work from home
5d
Java Full Stack Developer (Camunda) - London, UK
Capgemini Sogeti —London
- Computer Science
- Banking
JAVA DEVELOPER - LONDON - CONTRACT OUTSIDE IR35 - FINTECH
Adaptive Financial Consulting —London
- Java
Quick apply
13d
Software Developer (Java/Scala)
FlexTrade —London
- Full-time
- Hybrid work
- Java
- Bachelor's degree
- Agile
Quick apply
Java UI Developer
FalconSmartIT —London
- AWS
- AI
Quick apply
Full Stack Engineer (Java / React)
Durlston Partners —London
- Up to £120,000 a year
Java Full stack Developer (ReactJS&AngularJS) - London, UK - Fulltime - Hybrid
Capgemini —London
- Hybrid work
- Mentoring
- Agile
- AI
Software Engineer (Associate) - GMIT Trade Processing
Nomura —London
- Software development
- AI
- Communication skills
Lead Java Developer – Azure - Contract UK
Satalia —London
- Remote
- Azure
- Machine learning
- Software development
Java Developer - iSAM Vector
iSAM Securities —London
- Software development
- Linux
- AI
6d
Java Developer
Adroitpeople —London
- Oracle
- Software troubleshooting
- Java
Quick apply
Full stack Java Developer
Adroitpeople —London
- Agile
Quick apply
Senior Java Developer
hireful —London
- £90,000 - £110,000 a year
- Full-time
- Java
- Mentoring
Quick apply

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Backend Engineer

Metamindz -
London

Quick apply

Job details

Full-time
From £70,000 a year
5 hours ago

Qualifications

Performance tuning
Kotlin
Law
React
System design
Master's degree
PostgreSQL
Distributed systems
Back-end development
AI

Full job description

We're looking for a Backend Engineer to help build the foundational infrastructure that allows our client to scale its AI platform to some of the world's largest companies. This is a hands-on backend and platform role where you'll work on distributed systems, APIs, data flows, infrastructure, and the systems powering large-scale LLM workloads.

The role is broader than simply building backend features. You'll own problems end-to-end, from system design and architecture through implementation, production, and ongoing optimisation. You'll work closely with product engineers to build the infrastructure and internal tooling that keeps them fast and unblocked.

Who we're looking for:

3+ years of backend engineering experience, ideally with exposure to platform or infrastructure work
Strong system design instincts and the ability to own problems across APIs, infrastructure, and data flows
Experience with distributed systems, PostgreSQL at scale, queueing, and large-scale batch processing
Comfortable benchmarking and tuning systems under real production load
Strong engineering fundamentals and a pragmatic approach to architectural trade-offs
Familiarity with LLM infrastructure and high-throughput AI workloads
High-agency mindset - someone who identifies problems, fixes them, and raises the engineering bar around them
Experience with the Java ecosystem; Kotlin is the primary backend language at Conduct

What you'll own:

Backend architecture and production systems supporting enterprise customers
Infrastructure that allows product engineers to focus on building features rather than maintaining plumbing
Shared abstractions, internal tooling, and sensible platform defaults
Distributed systems handling large-scale data and batch processing
Reliable LLM infrastructure dealing with high token throughput, real-time workloads, and unreliable providers
Core systems around authentication, observability, job orchestration, and reliability
Performance optimisation and scaling as Conduct moves from early-stage systems to enterprise scale

Stack:

Kotlin backend with the wider Java ecosystem
PostgreSQL and large-scale data processing
Temporal for durable execution and job orchestration
PortKey for enterprise-compliant LLM routing
Specialised LLM infrastructure and harnesses
React, Vite, and TanStack on the frontend

What we offer:

Full-time, in-person role in London
The opportunity to work on infrastructure powering an AI-native enterprise product
Significant ownership from day one in a small, talent-dense engineering team
Complex distributed systems and LLM infrastructure challenges at real enterprise scale
Direct impact on the developer experience and reliability of the entire engineering organisation
A high-velocity, low-ego environment with strong engineering ownership
The opportunity to work on systems where the infrastructure decisions you make directly shape how the company scales

How to apply:

Send us a short intro about yourself and your relevant experience - and tell us your favourite ice cream flavour (ours is cherry)

Pay: From £70,000.00 per year

Work Location: In person

Quick apply

Refine Your Search

java developer jobs in london tw2

Backend Engineer

JAVA DEVELOPER

ML Engineer - Statistical Integrity (Financial Crime)

Java Software Engineer

Software Engineer

Senior Java Developer - London - Fintech

Java Developer

Associate, Java Engineer, BGM Data & Analytics

Java Full Stack Developer (Camunda) - London, UK

JAVA DEVELOPER - LONDON - CONTRACT OUTSIDE IR35 - FINTECH

Software Developer (Java/Scala)

Java UI Developer

Full Stack Engineer (Java / React)

Java Full stack Developer (ReactJS&AngularJS) - London, UK - Fulltime - Hybrid

Software Engineer (Associate) - GMIT Trade Processing

Lead Java Developer – Azure - Contract UK

Java Developer - iSAM Vector

Java Developer

Full stack Java Developer

Senior Java Developer

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