Java Developer – Market Connectivity

Solytics Infotech; Greater London; On-site; GBP 50,000 - 85,000; Full time

Job summary

Solytics Partners Careers is seeking a skilled developer to design and implement market connectivity solutions using Core Java. This hybrid position in London offers the chance to work on integrating electronic trading venues and developing scalable services. Candidates should have strong expertise in Java, experience with TransFICC’s Connectivity Platform, and familiarity with low-latency patterns. Join a global analytics firm committed to excellence and innovation in financial systems.

Qualifications

• Strong expertise in Core Java, including concurrency, memory management, and GC tuning.
• Hands‑on experience integrating and developing with TransFICC’s Connectivity Platform.
• Experience with electronic market protocols such as FIX and Binary/Streaming protocols.

Responsibilities

• Design, implement, and maintain market connectivity solutions using TransFICC’s Unified API.
• Integrate and manage connectivity to electronic trading venues.
• Develop high‑performance, scalable services using Core Java.

Skills

Core Java expertise

Concurrency and memory management

TransFICC Connectivity Platform

Low-latency patterns

High-throughput messaging

Tools

Linux

Kafka

Redis

Aerospike

Job description

Solytics Partners is a Global Analytics firm, recognized with multiple industry awards for innovation and excellence. Our team comprises experts with deep domain knowledge in risk, analytics, AI/ML, AML/FCC, and fraud. By converging this expertise with cutting‑edge technologies like AI, Machine Learning, Generative AI, and Large Language Models (LLMs), we deliver powerful automated platforms and incisive point solutions.

Our offerings enable clients to streamline and future‑prove their risk, AML, and analytics processes, comply seamlessly with global regulations, and safeguard financial systems. Whether it’s solving complex challenges or driving operational efficiency, Solytics Partners is committed to empowering organizations with transformative tools to stay ahead in an evolving regulatory landscape.

Job Type: Inside IR 35 Contract for 1 year

Job Location: London, Hybrid

Key Responsibilities

Design, implement, and maintain market connectivity solutions using TransFICC’s Unified API.

Integrate and manage connectivity to electronic trading venues (e.g., Tradeweb, Bloomberg, MTS, BrokerTec, MarketAxess).

Configure and support FIX, streaming, and venue‑specific protocols, ensuring accurate and reliable messaging.

Develop high‑performance, scalable services using Core Java (8/11/17).

Build and enhance components for pricing, order routing, and execution workflows.

Apply low‑latency, event‑driven, and asynchronous design patterns to improve throughput and efficiency.

Troubleshoot and resolve connectivity, performance, and messaging issues in production.

Conduct latency tuning, load testing, and system optimization.

Collaborate with SRE/DevOps teams to improve observability, CI/CD, and deployment pipelines.

Key Requirements

• Strong expertise in Core Java, including concurrency, memory management, and GC tuning.
• Hands‑on experience integrating and developing with TransFICC’s Connectivity Platform.
• Experience with electronic market protocols:
  • FIX (4.x/5.x)
  • Binary/Streaming protocols (ITCH, FAST, SBE, JSON over TCP).
• Familiarity with low‑latency patterns, high‑throughput messaging, and microservices.

Additional Skills

• Experience with Linux, shell scripting, and performance analysis tools.
• Knowledge of Kafka, Redis, Aerospike, or other high‑performance data stores.
• Understanding of order lifecycle, price feeds, and eTrading workflows in fixed income/rates.