FX Developer - React C# Fullstack
Posted on Jun 8, 2026 by CV-Library
London, United Kingdom
Accountancy
Immediate Start
Annual Salary
Contract/Project
Description
Key Responsibilities
· Deliver high‑quality features and enhancements across UI, services, and pricing components
· Work closely with the Team Lead, Traders, Quants, and other developers to clarify requirements
· Break down ambiguous or high‑level Jira tickets into actionable technical tasks
· Design pragmatic solutions that balance speed, robustness, and long‑term maintainability
· Participate in code reviews, knowledge sharing, and architectural discussions
· Support production systems, including participation in the on‑call rota
· Contribute to an inclusive, collaborative team culture
Required Skills & Experience
· Strong Experience in C# and modern backend development
· Solid understanding of TypeScript and React
· Proficiency with PostgreSQL or similar relational databases
· Experience integrating with quant libraries, pricing engines, or other computational services
· Ability to operate effectively in a front‑office or similarly fast‑paced environment
· Comfortable working with incomplete requirements and driving clarity through discussion
· Strong communication skills and willingness to engage directly with Trading and Quants
· Ability to deliver both quick tactical fixes and well‑designed strategic solutions
Nice to Have
· Experience in FX, options, or other derivatives
· Familiarity with risk systems, valuation concepts, or market data
· Experience with distributed systems or real‑time data processing
· Prior exposure to global teams and cross‑time‑zone collaboration
Skills
FX
React
C#
trading
development
Job Title: FX Developer - React C# Fullstack
Location: London, UK
Job Type: Contract
Trading as TEKsystems. Allegis Group Limited, Maxis 2, Western Road, Bracknell, RG12 1RT, United Kingdom. No. (phone number removed). Allegis Group Limited operates as an Employment Business and Employment Agency as set out in the Conduct of Employment Agencies and Employment Businesses Regulations 2003. TEKsystems is a company within the Allegis Group network of companies (collectively referred to as "Allegis Group"). Aerotek, Aston Carter, EASi, Talentis Solutions, TEKsystems, Stamford Consultants and The Stamford Group are Allegis Group brands. If you apply, your personal data will be processed as described in the Allegis Group Online Privacy Notice available at (url removed)>
To access our Online Privacy Notice, which explains what information we may collect, use, share, and store about you, and describes your rights and choices about this, please go to (url removed)>
We are part of a global network of companies and as a result, the personal data you provide will be shared within Allegis Group and transferred and processed outside the UK, Switzerland and European Economic Area subject to the protections described in the Allegis Group Online Privacy Notice. We store personal data in the UK, EEA, Switzerland and the USA. If you would like to exercise your privacy rights, please visit the "Contacting Us" section of our Online Privacy Notice at (url removed)/en-gb/privacy-notices for details on how to contact us. To protect your privacy and security, we may take steps to verify your identity, such as a password and user ID if there is an account associated with your request, or identifying information such as your address or date of birth, before proceeding with your request. If you are resident in the UK, EEA or Switzerland, we will process any access request you make in accordance with our commitments under the UK Data Protection Act, EU-U.S. Privacy Shield or the Swiss-U.S. Privacy Shield
Key Responsibilities
· Deliver high‑quality features and enhancements across UI, services, and pricing components
· Work closely with the Team Lead, Traders, Quants, and other developers to clarify requirements
· Break down ambiguous or high‑level Jira tickets into actionable technical tasks
· Design pragmatic solutions that balance speed, robustness, and long‑term maintainability
· Participate in code reviews, knowledge sharing, and architectural discussions
· Support production systems, including participation in the on‑call rota
· Contribute to an inclusive, collaborative team culture
Required Skills & Experience
· Strong Experience in C# and modern backend development
· Solid understanding of TypeScript and React
· Proficiency with PostgreSQL or similar relational databases
· Experience integrating with quant libraries, pricing engines, or other computational services
· Ability to operate effectively in a front‑office or similarly fast‑paced environment
· Comfortable working with incomplete requirements and driving clarity through discussion
· Strong communication skills and willingness to engage directly with Trading and Quants
· Ability to deliver both quick tactical fixes and well‑designed strategic solutions
Nice to Have
· Experience in FX, options, or other derivatives
· Familiarity with risk systems, valuation concepts, or market data
· Experience with distributed systems or real‑time data processing
· Prior exposure to global teams and cross‑time‑zone collaboration
Skills
FX
React
C#
trading
development
Job Title: FX Developer - React C# Fullstack
Location: London, UK
Job Type: Contract
Trading as TEKsystems. Allegis Group Limited, Maxis 2, Western Road, Bracknell, RG12 1RT, United Kingdom. No. (phone number removed). Allegis Group Limited operates as an Employment Business and Employment Agency as set out in the Conduct of Employment Agencies and Employment Businesses Regulations 2003. TEKsystems is a company within the Allegis Group network of companies (collectively referred to as "Allegis Group"). Aerotek, Aston Carter, EASi, Talentis Solutions, TEKsystems, Stamford Consultants and The Stamford Group are Allegis Group brands. If you apply, your personal data will be processed as described in the Allegis Group Online Privacy Notice available at (url removed)>
To access our Online Privacy Notice, which explains what information we may collect, use, share, and store about you, and describes your rights and choices about this, please go to (url removed)>
We are part of a global network of companies and as a result, the personal data you provide will be shared within Allegis Group and transferred and processed outside the UK, Switzerland and European Economic Area subject to the protections described in the Allegis Group Online Privacy Notice. We store personal data in the UK, EEA, Switzerland and the USA. If you would like to exercise your privacy rights, please visit the "Contacting Us" section of our Online Privacy Notice at (url removed)/en-gb/privacy-notices for details on how to contact us. To protect your privacy and security, we may take steps to verify your identity, such as a password and user ID if there is an account associated with your request, or identifying information such as your address or date of birth, before proceeding with your request. If you are resident in the UK, EEA or Switzerland, we will process any access request you make in accordance with our commitments under the UK Data Protection Act, EU-U.S. Privacy Shield or the Swiss-U.S. Privacy Shield
Reference: 225221023
https://jobs.careeraddict.com/post/113378594
FX Developer - React C# Fullstack
Posted on Jun 8, 2026 by CV-Library
London, United Kingdom
Accountancy
Immediate Start
Annual Salary
Contract/Project
Description
Key Responsibilities
· Deliver high‑quality features and enhancements across UI, services, and pricing components
· Work closely with the Team Lead, Traders, Quants, and other developers to clarify requirements
· Break down ambiguous or high‑level Jira tickets into actionable technical tasks
· Design pragmatic solutions that balance speed, robustness, and long‑term maintainability
· Participate in code reviews, knowledge sharing, and architectural discussions
· Support production systems, including participation in the on‑call rota
· Contribute to an inclusive, collaborative team culture
Required Skills & Experience
· Strong Experience in C# and modern backend development
· Solid understanding of TypeScript and React
· Proficiency with PostgreSQL or similar relational databases
· Experience integrating with quant libraries, pricing engines, or other computational services
· Ability to operate effectively in a front‑office or similarly fast‑paced environment
· Comfortable working with incomplete requirements and driving clarity through discussion
· Strong communication skills and willingness to engage directly with Trading and Quants
· Ability to deliver both quick tactical fixes and well‑designed strategic solutions
Nice to Have
· Experience in FX, options, or other derivatives
· Familiarity with risk systems, valuation concepts, or market data
· Experience with distributed systems or real‑time data processing
· Prior exposure to global teams and cross‑time‑zone collaboration
Skills
FX
React
C#
trading
development
Job Title: FX Developer - React C# Fullstack
Location: London, UK
Job Type: Contract
Trading as TEKsystems. Allegis Group Limited, Maxis 2, Western Road, Bracknell, RG12 1RT, United Kingdom. No. (phone number removed). Allegis Group Limited operates as an Employment Business and Employment Agency as set out in the Conduct of Employment Agencies and Employment Businesses Regulations 2003. TEKsystems is a company within the Allegis Group network of companies (collectively referred to as "Allegis Group"). Aerotek, Aston Carter, EASi, Talentis Solutions, TEKsystems, Stamford Consultants and The Stamford Group are Allegis Group brands. If you apply, your personal data will be processed as described in the Allegis Group Online Privacy Notice available at (url removed)>
To access our Online Privacy Notice, which explains what information we may collect, use, share, and store about you, and describes your rights and choices about this, please go to (url removed)>
We are part of a global network of companies and as a result, the personal data you provide will be shared within Allegis Group and transferred and processed outside the UK, Switzerland and European Economic Area subject to the protections described in the Allegis Group Online Privacy Notice. We store personal data in the UK, EEA, Switzerland and the USA. If you would like to exercise your privacy rights, please visit the "Contacting Us" section of our Online Privacy Notice at (url removed)/en-gb/privacy-notices for details on how to contact us. To protect your privacy and security, we may take steps to verify your identity, such as a password and user ID if there is an account associated with your request, or identifying information such as your address or date of birth, before proceeding with your request. If you are resident in the UK, EEA or Switzerland, we will process any access request you make in accordance with our commitments under the UK Data Protection Act, EU-U.S. Privacy Shield or the Swiss-U.S. Privacy Shield
Key Responsibilities
· Deliver high‑quality features and enhancements across UI, services, and pricing components
· Work closely with the Team Lead, Traders, Quants, and other developers to clarify requirements
· Break down ambiguous or high‑level Jira tickets into actionable technical tasks
· Design pragmatic solutions that balance speed, robustness, and long‑term maintainability
· Participate in code reviews, knowledge sharing, and architectural discussions
· Support production systems, including participation in the on‑call rota
· Contribute to an inclusive, collaborative team culture
Required Skills & Experience
· Strong Experience in C# and modern backend development
· Solid understanding of TypeScript and React
· Proficiency with PostgreSQL or similar relational databases
· Experience integrating with quant libraries, pricing engines, or other computational services
· Ability to operate effectively in a front‑office or similarly fast‑paced environment
· Comfortable working with incomplete requirements and driving clarity through discussion
· Strong communication skills and willingness to engage directly with Trading and Quants
· Ability to deliver both quick tactical fixes and well‑designed strategic solutions
Nice to Have
· Experience in FX, options, or other derivatives
· Familiarity with risk systems, valuation concepts, or market data
· Experience with distributed systems or real‑time data processing
· Prior exposure to global teams and cross‑time‑zone collaboration
Skills
FX
React
C#
trading
development
Job Title: FX Developer - React C# Fullstack
Location: London, UK
Job Type: Contract
Trading as TEKsystems. Allegis Group Limited, Maxis 2, Western Road, Bracknell, RG12 1RT, United Kingdom. No. (phone number removed). Allegis Group Limited operates as an Employment Business and Employment Agency as set out in the Conduct of Employment Agencies and Employment Businesses Regulations 2003. TEKsystems is a company within the Allegis Group network of companies (collectively referred to as "Allegis Group"). Aerotek, Aston Carter, EASi, Talentis Solutions, TEKsystems, Stamford Consultants and The Stamford Group are Allegis Group brands. If you apply, your personal data will be processed as described in the Allegis Group Online Privacy Notice available at (url removed)>
To access our Online Privacy Notice, which explains what information we may collect, use, share, and store about you, and describes your rights and choices about this, please go to (url removed)>
We are part of a global network of companies and as a result, the personal data you provide will be shared within Allegis Group and transferred and processed outside the UK, Switzerland and European Economic Area subject to the protections described in the Allegis Group Online Privacy Notice. We store personal data in the UK, EEA, Switzerland and the USA. If you would like to exercise your privacy rights, please visit the "Contacting Us" section of our Online Privacy Notice at (url removed)/en-gb/privacy-notices for details on how to contact us. To protect your privacy and security, we may take steps to verify your identity, such as a password and user ID if there is an account associated with your request, or identifying information such as your address or date of birth, before proceeding with your request. If you are resident in the UK, EEA or Switzerland, we will process any access request you make in accordance with our commitments under the UK Data Protection Act, EU-U.S. Privacy Shield or the Swiss-U.S. Privacy Shield
Reference: 225221023
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