Java Low Latency Connectivity Engineer
other jobs Avanti Recruitment
Added before 5 Days
- England,London,City of London
- Full Time, Permanent
- £70,000 - £150,000 per annum
Job Description:
Java Low Latency Connectivity Developer
London | 4 Days Office, Victoria | Crytpo Exchange Connectivity / FIX
A specialist electronic trading firm is seeking a Java Low Latency Connectivity Developer to join a highly technical, performance-driven engineering team.
The business operates automated trading strategies across both traditional financial markets and crypto venues. Technology is central to performance, and connectivity to exchanges is a core competitive edge.
This is a hands-on role within a small, experienced team where engineers work directly on systems that impact live trading outcomes.
The Role
You will be responsible for designing, building and optimising exchange connectivity across multiple venues, with a strong focus on crypto markets.
Key responsibilities include:
*Developing ultra-low latency Java components
*Managing FIX protocol sessions and order flow
*Integrating and optimising crypto exchange APIs using REST and WebSocket
*Handling real-time JSON market data feeds
*Improving performance and reducing latency across exchange connections
*Supporting and enhancing live trading systems
Each exchange has its own architecture, API behaviour and performance characteristics. You will play a key role in ensuring reliable, high-performance connectivity across them.
What We Are Looking For
*Strong core Java expertise
*Experience in low latency or performance-critical systems
*Solid understanding of FIX protocol (session and application layers)
*Direct experience connecting to trading venues or exchanges
*Hands-on experience integrating with crypto exchanges
*Strong understanding of REST and WebSocket APIs in real-time environments
*Experience working in Linux-based production systems
Exposure to high-performance libraries such as Aeron, Agrona, SBE or Artio is advantageous.
The Environment
*Small, collaborative engineering team
*Flat structure with real ownership
*Office-based in Victoria, London (4 days per week)
*24/7 automated trading systems
*Occasional out-of-hours support rotation
This role is well suited to engineers who enjoy working close to the market, solving hard performance problems, and taking responsibility for exchange connectivity in a fast-moving environment.
London | 4 Days Office, Victoria | Crytpo Exchange Connectivity / FIX
A specialist electronic trading firm is seeking a Java Low Latency Connectivity Developer to join a highly technical, performance-driven engineering team.
The business operates automated trading strategies across both traditional financial markets and crypto venues. Technology is central to performance, and connectivity to exchanges is a core competitive edge.
This is a hands-on role within a small, experienced team where engineers work directly on systems that impact live trading outcomes.
The Role
You will be responsible for designing, building and optimising exchange connectivity across multiple venues, with a strong focus on crypto markets.
Key responsibilities include:
*Developing ultra-low latency Java components
*Managing FIX protocol sessions and order flow
*Integrating and optimising crypto exchange APIs using REST and WebSocket
*Handling real-time JSON market data feeds
*Improving performance and reducing latency across exchange connections
*Supporting and enhancing live trading systems
Each exchange has its own architecture, API behaviour and performance characteristics. You will play a key role in ensuring reliable, high-performance connectivity across them.
What We Are Looking For
*Strong core Java expertise
*Experience in low latency or performance-critical systems
*Solid understanding of FIX protocol (session and application layers)
*Direct experience connecting to trading venues or exchanges
*Hands-on experience integrating with crypto exchanges
*Strong understanding of REST and WebSocket APIs in real-time environments
*Experience working in Linux-based production systems
Exposure to high-performance libraries such as Aeron, Agrona, SBE or Artio is advantageous.
The Environment
*Small, collaborative engineering team
*Flat structure with real ownership
*Office-based in Victoria, London (4 days per week)
*24/7 automated trading systems
*Occasional out-of-hours support rotation
This role is well suited to engineers who enjoy working close to the market, solving hard performance problems, and taking responsibility for exchange connectivity in a fast-moving environment.
Job number 3444037
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Company Details:
Avanti Recruitment
Company size: 20–49 employees
Industry: Recruitment Consultancy
Simplifying Tech Recruitment, Since 2009.Avanti exists to make tech recruitment less challenging, complex, and time-consuming for both employers and j...