Senior core systems developer Work, Jobs in Remote (with Salaries)

Senior Core Java Engineer
TransFICC —Remote
- £100,000 - £130,000 a year
- Full-time
- Remote
- Java
- Scripting
- Communication skills
Quick apply
14d
Lead Back-End Developer
Twilo Creative —Remote
- £50,000 a year
- Full-time
- Remote
- Project management
- APIs
- IT
- Work from home
- Life insurance
Quick apply
1d
Senior Middleware Developer
Gallagher —Remote
- Remote
- Spanish
- Salesforce
- English
Senior Quality Engineer
Elecosoft —Remote
- Remote
- SQL
- Travel
- APIs
Senior Software Engineer - Engineering Workflow and CI
Mozilla —Remote
- £65,000 - £87,000 a year
- Remote
- Data analysis skills
- SQL
- AWS
- Employee assistance programme
- Referral programme
Executive Assistant (United Kingdom)
GitLab —Remote
- Full-time
- Remote
- English
- Administrative experience
- Leadership
- Employee stock purchase plan
- Annual leave
Senior Platform Engineer - Core Platform- UK & Ireland
Fanatics Betting & Gaming —Remote
- £96,000 - £120,000 a year
- Full-time
- Remote
- DevOps
- Java
- AWS
Quick apply
2d
Senior AI Developers
ICS.AI Limited —Remote
- Up to £60,000 a year
- Full-time
- Remote
- Azure
- Computer Science
- SQL
Quick apply
Senior HRIS Integration Developer
Ivanti —Remote
- Remote
- Computer Science
- Bachelor's degree
- Human resources
Quick apply
Senior Product Security Engineer
Mozilla —Remote
- £65,000 - £87,000 a year
- Remote
- Communication skills
- Python
- Employee assistance programme
- Referral programme
Lead Developer - UltraTEV
EA Technology —Remote
- Remote
- Computer Science
- Engineering
- System design
Senior Software Engineer
Heritage Holdings —Remote
- Remote
- English
- JavaScript
- APIs
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Senior Software Engineer - Grafana Cloud Observability Provider | UK | Remote
Grafana Labs —Remote
- £91,755 - £110,106 a year
- Remote
- Java
- Software development
- APIs
- Annual leave
Staff Software Engineer
CaptivateIQ —Remote
- £181,289 - £250,239 a year
- Full-time
- Remote
- Sales
- APIs
- Leadership
Quick apply
Senior Developer Relations Manager – Financial Services
NVIDIA —Remote
- Full-time
- Remote
- Computer Science
- Engineering
- Master's degree
Senior Consulting Software Developer
Harris Computer Systems —Remote
- £325 a day
- Full-time
- Hybrid work
- Windows
- Java
- SQL
- Annual leave
13d
Lead AI Engineer (Agentic Systems)
StarCompliance —Remote
- Full-time
- Remote
- Azure
- System design
- APIs
Quick apply
Senior Product Manager, Infrastructure Observability | UK | Remote
Grafana Labs —Remote
- £91,755 - £110,106 a year
- Remote
- Computer Science
- Bachelor's degree
- No degree
- Annual leave
Principal Software Engineering Manager
GitHub, Inc. —Remote
- £111,500 - £207,100 a year
- Full-time
- Remote
- Management
- Doctoral degree
- Computer Science
Business Development Manager (Defence)
Leidos —Remote
- £75,800 - £99,800 a year
- Full-time
- Business development
- Travel
- Mentoring
- Annual leave
- Work from home

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senior core systems developer jobs near remote

Senior Core Java Engineer

TransFICC
Remote

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Job details

Full-time
£100,000 - £130,000 a year
14 days ago

Qualifications

Spring Boot
Test-driven development
Java
SDKs
Scripting
Communication skills

Full job description

Senior Java Software Engineer (Core Java | TDD | Pair Programming)

Location: Remote (UK & Europe) | Remote-First
Office Location: Moorgate, London (Optional)
Employment Type: Permanent | Full-Time
Working Hours: UK Business Hours (9:00 AM – 6:00 PM)
Salary: Up to £130,000 + Shares + Benefits

About TransFICC

TransFICC is a fast-growing fintech company providing electronic trading connectivity and workflow automation solutions for banks and asset managers operating in the Fixed Income and Derivatives markets.

Our platform enables:

Global trading venue connectivity
Low-latency electronic trading
Workflow automation
Secure cloud-hosted SaaS solutions with built-in disaster recovery and security

Following a $25M Series B funding round led by Citadel Securities, we're continuing to expand our world-class engineering team.

About the Role

We're looking for passionate Java Software Engineers who love solving complex engineering problems and writing clean, maintainable software.

This is not a typical Spring Boot application development role.

We're looking for engineers who enjoy building software from first principles, creating reusable libraries and components, practicing Test-Driven Development, and working in a highly collaborative engineering culture based on Extreme Programming (XP).

You'll work closely with other engineers through full-time pair programming while building resilient, high-performance fintech platforms.

What You'll Do

Design and develop resilient, scalable fintech platforms and reusable Java components.
Build libraries, frameworks, SDKs, and low-level software components where appropriate.
Continuously refactor code to improve quality, maintainability, and design.
Write automated tests and embrace Test-Driven Development (TDD).
Pair program daily with fellow engineers.
Work across multiple teams with an "Our Code, Not My Code" mindset.
Practice trunk-based development and continuous integration.
Automate repetitive engineering tasks wherever possible.
Optimize software for performance, throughput, and latency.
Participate in technical discussions and contribute to architectural improvements.

What We're Looking ForRequired Skills

Commercial experience developing software using Java.
Comfortable with full-time pair programming.
Strong understanding of Test-Driven Development (TDD).
Experience writing automated tests.
Experience with scripting and automation.
Strong communication skills with the ability to clearly explain technical ideas.
Passion for writing clean, maintainable, and well-tested code.

Preferred Experience

Candidates with experience in any of the following are highly encouraged to apply:

Building libraries, frameworks, SDKs, or reusable software components from scratch.
Performance optimization and low-latency systems.
Core Java development.
Refactoring large codebases.
Continuous Integration (CI/CD).
Trunk-Based Development.
Behaviour-Driven Development (BDD).
Domain-Driven Design (DDD).
Extreme Programming (XP).
Open-source contributions.
Compiler development.
Developer tooling.
Infrastructure or platform engineering.

Our Engineering Culture

Our engineering team believes great software comes from great engineering practices.

We embrace:

Pair Programming
Extreme Programming (XP)
Test-Driven Development (TDD)
Behaviour-Driven Development (BDD)
Domain-Driven Design (DDD)
Continuous Integration
Trunk-Based Development
Continuous Refactoring
Collective Code Ownership
Automation First

Every commit is automatically validated by thousands of tests before being released.

Who You'll Enjoy Working With

You'll fit well if you:

Love solving difficult engineering problems.
Enjoy collaborating closely with other developers.
Prefer writing quality software over quick fixes.
Like building reusable software instead of relying heavily on frameworks.
Enjoy continuous learning and technical discussions.
Are comfortable receiving and giving constructive feedback.

Location Requirements

Remote within the United Kingdom or Europe.
Must be available to work UK business hours (9:00 AM – 6:00 PM).

Compensation & Benefits

Competitive salary up to £130,000 (depending on experience)
Equity (Shares)
Comprehensive benefits package
Permanent full-time position
Remote-first working environment
Opportunity to work on cutting-edge financial technology
Collaborative engineering culture focused on technical excellence

Please Note

We value genuine engineering experience and thoughtful problem-solving. Candidates should be prepared to discuss their technical contributions in depth during the interview process.

Pay: £100,000.00-£130,000.00 per year

Application question(s):

How many years of commercial Java development experience do you have, and are you comfortable working primarily with Core Java rather than relying heavily on frameworks?
Have you worked in an environment that practiced Test-Driven Development (TDD) and pair programming? If yes, briefly describe your experience.
Please describe a library, framework, SDK, compiler, reusable component, or low-level system that you personally built from scratch. What was your contribution?
Have you Read JD Carefully ?

Work Location: Remote

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Refine Your Search

senior core systems developer jobs in remote

Senior Core Java Engineer

Lead Back-End Developer

Senior Middleware Developer

Senior Quality Engineer

Senior Software Engineer - Engineering Workflow and CI

Executive Assistant (United Kingdom)

Senior Platform Engineer - Core Platform- UK & Ireland

Senior AI Developers

Senior HRIS Integration Developer

Senior Product Security Engineer

Lead Developer - UltraTEV

Senior Software Engineer

Senior Software Engineer - Grafana Cloud Observability Provider | UK | Remote

Staff Software Engineer

Senior Developer Relations Manager – Financial Services

Senior Consulting Software Developer

Lead AI Engineer (Agentic Systems)

Senior Product Manager, Infrastructure Observability | UK | Remote

Principal Software Engineering Manager

Business Development Manager (Defence)

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