12 of 12 FIX Protocol Jobs in the City of London

Technical Account Manager, Equities & FX

Hiring Organisation
OneChronos
Location
City of London, London, United Kingdom
trading, technology, and regulation. What You’ll Do Client Support & Onboarding Manage new and existing clients with technical onboarding, account setup, certifications and FIX protocol connectivity, including network configuration and session management. Guide clients through onboarding and testing, ensuring adherence to MTF requirements and trading rules. Troubleshoot client … connectivity or trading issues (including FIX sessions, TCP/IP connectivity, firewall or routing matters), escalating to technology & engineering teams where necessary. Trading & Market Technical Operations Monitor live trading activity and platform performance, ensuring seamless execution for market Subscribers. Oversee market data integrity, trade lifecycle events, and system connectivity ...

Senior Software Engineer / Principal Software Engineer - C++, Python

Hiring Organisation
N P Associates
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £140,000 per annum
methodologies• Python, including Pytest. • Knowledge of capital markets exchange connectivity on stocks (fixed income and derivatives is a plus), including exchange protocols such as FIX and SBE. • Most importantly, a drive to solve complex technological and trading challenges with a great team of talented developers. • Comfortable using Agile methodology ...

Senior Software Engineer C++

Hiring Organisation
REC SOLUTIONS LIMITED
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Linux systems. Good understanding of modern development best practices and methodologies Python. Git. SQL. Knowledge of capital markets technologies, protocols, and standards such as FIX and SBE. Most importantly, a drive to solve complex technological and trading problematics with a great team of talented developers. Desired Skills/Experience ...

Full Stack Developer

Hiring Organisation
Devonshire Hayes Recruitment Specialists Limited
Location
City of London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
£45,000 - £65,000 per annum
NoSQL databases Experience with cloud platforms (Azure or AWS) Desirable: Experience with containerisation (Docker, Kubernetes) Knowledge of financial systems or trading platforms Exposure to FIX protocol Understanding of asset classes such as FX, derivatives, or similar Qualifications & Experience Degree in Computer Science, Engineering, or a related field ...

C++ Team Lead

Hiring Organisation
REC SOLUTIONS LIMITED
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Linux systems. Good understanding of modern development best practices and methodologies Python. Git. SQL. Knowledge of capital markets technologies, protocols, and standards such as FIX and SBE. Most importantly, a drive to solve complex technological and trading problematics with a great team of talented developers. Desired Skills/Experience ...

Global Banking & Markets - Trading Systems Support Engineer - Associate/Vice President - London

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
C++) for automation, tooling, and operational tasks. Experience with distributed systems design, maintenance, and troubleshooting. Knowledge of financial markets, electronic trading workflows, and the FIX protocol. Demonstrated ability to debug, optimize, and troubleshoot code and system performance issues. Job Info Job Identification 165083 Job Category Vice President Posting Date ...

Software Engineer

Hiring Organisation
Finalto
Location
City of London, London, United Kingdom
latency connectivity to our top tier liquidity providers – such as BNP, Goldman Sachs and Barclays – our clients and to trading venues using the FIX (Financial Information eXchange) protocol in our London office. The Team ClearVision R&D is a dedicated engineering team working on the ClearVision trading platform … will be part of the Integration team, working on systems that provide reliable, low-latency connectivity to liquidity providers and trading venues using the FIX protocol. You will be involved in the full software development lifecycle — from requirements and design through development, testing, and production support. This role focuses ...

Quantitative Developer (C++ Crypto)

Hiring Organisation
Hawksman Technology
Location
City of London, London, United Kingdom
high-performance systems for trading, order routing, and real-time market data processing Contribute to the design and optimisation of exchange connectivity layers , including FIX-style protocols, native exchange APIs, and WebSocket feeds Build and enhance components inspired by matching engine/exchange-grade architecture , including order lifecycle management ...

Software Engineer Apprentice

Hiring Organisation
QA
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£25,000 per annum
changes, and learn how reliable services are delivered in production Integration & connectivity (exposure): Learn how we onboard and support connectivity with external parties (e.g., FIX connections), following documented processes and escalating appropriately Support client onboarding and certification activities, helping improve documentation and automation to make integrations smoother over time ...

Connectivity & Messaging Engineer

Hiring Organisation
Block MB
Location
City of London, London, United Kingdom
with a passion for simplifying complex systems, optimising runtime performance and enhancing developer/operational workflows. Nice to have Experience with connectivity protocols like FIX or other financial messaging standards. Prior work on large-scale service-oriented or microservices platforms. Why it’s exciting Join a collaborative engineering environment ...

Backend Software Engineer

Hiring Organisation
STS Digital Group
Location
City of London, London, United Kingdom
test, deploy, and maintain OTC trading systems (primarily in C#) supporting Spot, Options, and Structured Products workflows. Build and enhance API services (REST, WebSocket, FIX 4.4) used by clients and internal trading systems. Work closely with traders, quants, and other engineers to deliver performant, secure, and scalable solutions. Collaborate … systems. Familiarity with quantitative pricing integration and automated testing frameworks. Understanding of risk management, order management systems (OMS), and trade lifecycle workflows. Experience building FIX or WebSocket APIs for trading. Options and structured products experience. Our Tech Stack Backend: C#, Python Frontend: React Databases: PostgreSQL, DynamoDB Infrastructure ...

Front Office Production Engineer - SRE, Linux, Oracle, Root Cause Analysis, Incident Management

Hiring Organisation
Morson Edge
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£85,000
Front Office Production Engineer – Linux, Oracle, KDB, SRE, Python, Shell Scripting, Automation, Monitoring, Observability, FIX Messaging, Fixed Income A Senior Production Engineer with a background in Front Office Trading environments and strong knowledge of Site Reliability Engineering (SRE) is sought after by a global Investment Bank to join their … response, root cause, gap analysis, bug fixing through to full recovery and resolution Understanding of the trade life cycle from pre-to-post trade, FIX Messaging and experience facing off directly to the business, including Traders ...