Junior Java Software Developer

Fasanara; Greater London; On-site; GBP 35,000 - 52,000; Full time

Benefits offered by this job

Performance bonus

Private medical & dental insurance

Life Insurance

Income protection

EAP

Pension plan (HL)

Maternity/Paternity leave

Parental leave

Cycle to Work

Charity giving

Wellbeing budget

Team socials

Job summary

Fasanara Digital is seeking a Junior Java Software Developer to contribute to our 24/7 trading activity and to the development of a multi-venue collateral management platform. You will work under guidance from experienced engineers, focusing on both new development and maintaining existing systems in a collaborative fintech environment.

The role offers hands-on engineering experience in Java and Kotlin, with opportunities to learn about real-time systems, data integrations, and accounting

Qualifications

• 2+ years of professional software engineering experience.
• Professional Java or Kotlin development experience.
• Understanding of distributed systems concepts.
• Interest in real-time, event-driven, high-availability systems.
• OO programming, testing and version control fundamentals.
• Debugging and improving existing code with guidance.
• Strong problem-solving and analytical skills.
• Self-starter who works independently on well-defined tasks.
• Strong communication and collaboration skills.

Responsibilities

• Develop, maintain, and enhance multi-venue collateral management system with guidance from experienced engineers.
• Contribute to improvements in distributed, real-time, and event-driven systems for reliability and availability.
• Build and maintain integrations with trading venues to source data (accounts, positions, collateral).
• Implement reference data frameworks and accounting pipelines for traditional and digital assets.
• Develop primarily in Java and Kotlin; participate in code reviews and technical discussions.
• Debug production code and develop new functionality with team support.
• Take initiative on well-defined tasks and raise blockers promptly.
• Collaborate with engineers to understand requirements and deliver practical solutions.
• Utilize AI-assisted tools to improve productivity and software quality.

Skills

Java

Kotlin

Distributed systems

OO programming

Testing

Version control

Self-starter

Problem solving

Communication

Python

AI-assisted tools

Tools

Kafka

Apache

Job description

About Fasanara

Founded in 2011, Fasanara is a global asset manager and technology platform.

We manage c. USD 6 billion AUM (as of December 31, 2025) in Fintech strategies on behalf of pension funds and insurance companies in Europe and North America.

With c.110 employees globally, we are a pioneer investor in Fintech Lending, enabling Real Economy Impact.

Fasanara manages the largest and longest standing Fintech Lending fund in Europe and invests in early-stage Fintech companies via its venture capital vehicles, using its central role in the Fintech ecosystem to identify and back revolutionary new businesses.

Our Culture

We are strong believers in meritocracy, and we seek to reward people based on impact and excellence. There is no bureaucracy, typical of large organisations. The environment is collaborative, entrepreneurial, and trust based. We set ambitious goals, work extremely hard, stress the importance of teamwork, and adhere to the highest level of excellence in everything we do. We are only as good as our team. Thus, we are building the firm around exceptional talent.

The role

We are looking for a Junior Java Software Developer to join Fasanara Digital and contribute to systems supporting our 24/7 trading activity, with guidance from experienced engineers.

The role will focus on contributing to the development and maintenance of our multi-venue collateral management platform, alongside new reference data and accounting infrastructure supporting both digital assets and traditional financial markets.

This is a hands-on engineering role within a small, high-performing team, with opportunities to learn from experienced colleagues. You will work on well-defined tasks across both new development and existing production systems, helping to build new functionality and maintain and improve established code. We are looking for a self-starter who takes initiative, follows through on tasks, and asks for guidance when needed.

Experience in financial services, trading, banking, or digital assets is welcome but not required. We are interested in candidates with a solid foundation in Java development and a willingness to learn about our systems and markets.

Responsibilities

• Help develop, maintain, and enhance our multi-venue collateral management system supporting 24/7 trading activity, with guidance from experienced engineers.
• Contribute to improvements in distributed, real-time, and event-driven systems, learning how to support their reliability and availability.
• Help build and maintain integrations with trading venues to source account, position, collateral, and other operational data.
• Assist with implementing reference data frameworks and accounting pipelines supporting both traditional financial instruments and digital assets.
• Develop primarily in Java and Kotlin, following established patterns and participating in code reviews and technical discussions.
• Maintain, debug, and improve existing production code alongside developing new functionality, with support and code review from the team.
• Take initiative on well-defined tasks, follow through on agreed work, and raise questions or blockers promptly.
• Work closely with experienced engineers to understand business requirements and contribute to practical technical solutions.
• Use modern AI-assisted development tools to improve engineering productivity and software quality.

Technical Requirements

• 2+ years of professional software engineering experience.
• Practical experience developing in Java or Kotlin in a professional environment.
• Functional understanding of distributed systems concepts and an interest in developing practical experience.
• Interest in learning about real-time, event-driven, and high-availability systems; prior exposure is helpful but not required.
• Sound understanding of software engineering fundamentals, including object-oriented programming, testing, and version control.
• Experience debugging and improving existing code and developing new functionality, with guidance when needed.
• Strong problem-solving and analytical skills.
• A self-starter who takes initiative, works independently on well-defined tasks, and seeks support when needed.
• Strong communication and collaboration skills.

Desired Skills

• Commercial Kotlin experience.
• Previous experience within financial services, trading, banking, hedge funds, or fintech.
• Experience within cryptocurrency or digital assets.
• Knowledge of crypto exchanges, trading venues, protocols, or market infrastructure.
• Experience developing collateral, position, accounting, market data, or reference data systems.
• Experience with Python.
• Experience with Apache, Kafka or other event streaming technologies.
• Experience using AI-assisted software development tools.
• Understanding of traditional financial instruments and financial market infrastructure.

Our benefits include:

• Performance-related Bonus Scheme
• Private Medical & Dental Insurance throughBupa(including children's cover)
• Life Insurance, Income Protection & Critical Illness Cover
• Employee Assistance Programme (EAP)
• Salary sacrifice pension withHargreaves Lansdown(currently matched up to 10%)
• Enhanced Maternity & Paternity Leave
• Emergency Parental Leave, Emergency Childcare & Nursery Benefit
• Cycle to Work Scheme
• Charity Giving through CAF
• Annual Wellbeing Budget
• Team socials, annual Summer & Christmas parties,and other events throughout the year