July 9, 2026

.NET Developer

Mid • Hybrid

550 - 550 PLN

London, United Kingdom

.NET Developer

£550pd Inside IR35

2-3 days on site in London

Initial 6 month engagement

emagine is a high-end professional services consultancy and solutions firm specialising in providing business and technology services to the financial services sector, we power progress, solve challenges and deliver real results through tailored high-end consulting services and solutions.

 

We have created a culture of openness and integrity by building genuine and strong relationships and partnerships, enabling us to be uncompromising in our dedication in delivering the optimal service for our clients. Our commitment is not just towards our clients but we aim to foster a positive and equitable working environment with our consultants and colleagues which stems from our core values: Confident, Dedicated, Responsible, Genuine.


We are seeking a talented .Net Developer with strong hands-on experience in backend and SDD-based development. The ideal consultant will have expertise in .NET, C#, REST APIs, and microservices, focusing on building secure, scalable, resilient, and maintainable services.

Main Responsibilities:
The candidate will be responsible for translating specifications into production-ready code and ensuring effective integration of APIs and systems.

  • Develop secure and efficient backend services.

  • Conduct database development and optimization.

  • Implement CI/CD processes for automatic deployment.

  • Maintain observability and performance of distributed systems.

  • Engage in troubleshooting to resolve technical issues.

Key Requirements:

  • Proficient in .NET and C#.

  • Extensive experience with REST APIs and microservices architecture.

  • Strong knowledge in automated testing methodologies.

  • Experience with cloud deployment strategies.

  • Ability to troubleshoot and optimize distributed systems

  • Familiarity with Agile methodologies.

  • Knowledge of containerization tools such as Docker.

Our People

 

The ideal consultants will share our values and be aligned with our ways of working and as your career progresses, you can expect to work across all areas of the project lifecycle, from strategy to implementation. This will provide you with a broad base of experience from which to build an outstanding career.

 

The ideal consultants will share our values and be aligned with our ways of working and as your career progresses, you can expect to work across all areas of the project lifecycle.

We pride ourselves on;

  • Providing our people with a supportive culture, rooted in our values and driven by our purpose.

  • Promoting a culture of inclusion, collaboration, well-being, and learning and development.

  • Providing increased agility and flexibility within our hybrid working model

  • Investing in employees’ growth through ongoing training and development

  • Autonomy to take ownership of projects, making decisions and demonstrating individual expertise

  • Providing an transparent performance and career management experience.

 

Our consultants are integral to delivering successful consulting engagements, addressing our clients’ most pressing business challenges, and build lasting value in disciplines such as:

  • Solve sophisticated, ambiguous business, change and technology problems, bringing structure and meticulous analysis and planning, acting, and taking decisions with little strategic direction

  • Build, develop and sustain trusted senior client relationships in the C-suite by remaining highly attuned to client needs

  • Drive, enable and support the business, partnering with our leaders, clients, and consultants across our practices to take the best of emagine to our clients through opportunity identification/qualification, solution development/presentation

Interested?

 

At emagine, we are committed to building an international and diverse team by embracing our different backgrounds.

 

If you are up to the challenge and would like to find out more, get in touch with us immediately, our internal recruitment team is always keen to hear from dynamic individuals that are looking to further their career and explore their full potential. 

 

“emagine is an equal opportunity employer, and employment practices are based strictly on merit. It is the policy of the Company to give equal opportunity in employment regardless of sex, sexual orientation, marital status, race, age, disability, gender reassignment, pregnancy and maternity, religion or ethnic origin”
This position offers a flexible working environment with potential remote work opportunities. The role is aligned with modern software development practices and is suitable for various industries.

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London, United Kingdom

750 - 800 PLN

🏢 Summary: Hybrid Python Developer role in London focused on building and enhancing systems supporting equity derivatives trading and risk. The position involves delivering full-stack solutions, including backend services, APIs, and user-facing applications, in close collaboration with traders and technologists. The project aims to strengthen technology capabilities within a regulated financial services environment. 🗂️ Requirements: Proficiency in Python (asyncio, multi-threading/processing, NumPy, Polars), Experience with React, Experience with FastAPI or Django, Experience with PostgreSQL and MongoDB, Experience with Docker and Git, Experience in regulated financial services environment, Strong problem-solving skills 📃 Skills: Python, asyncio, NumPy, Polars, React, FastAPI, Django, PostgreSQL, MongoDB, Docker, Git 🏢 Description: Python Developer London- (Hybrid) £750 -£800 emagine is a high-end professional services consultancy and solutions firm Specialising in providing business and technology services to the financial services sector, we power progress, solve challenges and deliver real results through tailored high-end consulting services and solutions. We have created a culture of openness and integrity by building genuine and strong relationships and partnerships, enabling us to be uncompromising in our dedication in delivering the optimal service for our clients. Our commitment is not just towards our clients but we aim to foster a positive and equitable working environment with our consultants and colleagues which stems from our core values: Confident, Dedicated, Responsible, Genuine. emagine consulting is seeking a Payments Business Analyst with experience in regulated financial services, ideally with exposure to Private Banking and Wealth Management environments. This proejct is focused on enhancing the technology capabilities of the Equity Derivatives (ED) business, with the main objective of supporting trading and risk systems through close collaboration between trading and technology teams. Main Responsibilities Design, build, and enhance systems supporting flow derivatives and structured/exotic derivatives. Deliver full-stack features including backend services, APIs, and user-facing applications. Collaborate directly with traders, quants, and technologists to translate business requirements into production-ready solutions. Key Requirements Proficiency in Python (asyncio, multi-threading/processing, NumPy, Polars), React. Experience with web frameworks like FastAPI or Django. Familiarity with database technologies including PostgreSQL and MongoDB. Strong problem-solving abilities. Experience in DevOps tools such as Docker and Git. Nice to Have Prior work on structured products or exotic derivatives systems (Highly desirable). Background in traditional enterprise languages (Java/C#) combined with Python. Our people The ideal consultants will share our values and be aligned with our ways of working and as your career progresses, you can expect to work across all areas of the project lifecycle, from strategy to implementation. This will provide you with a broad base of experience from which to build an outstanding career. The ideal consultants will share our values and be aligned with our ways of working and as your career progresses, you can expect to work across all areas of the project lifecycle. Interested? At emagine, we are committed to building an international and diverse team by embracing our different backgrounds. If you are up to the challenge and would like to find out more, get in touch with us immediately, our internal recruitment team is always keen to hear from dynamic individuals that are looking to further their career and explore their full potential. “emagine is an equal opportunity employer, and employment practices are based strictly on merit. It is the policy of the Company to give equal opportunity in employment regardless of sex, sexual orientation, marital status, race, age, disability, gender reassignment, pregnancy and maternity, religion or ethnic origin”

Technology

emagine Polska

C# Developer

Mid

Hybrid

London, United Kingdom

700 - 750 PLN

🏢 Summary: Contract C# Developer role focused on modernizing and enhancing a core Pricing and Booking platform within Equity Derivatives, supporting trading and sales teams. The position involves maintaining a C# desktop application and contributing to a new React-based web client and modern backend architecture. The role supports mission-critical, low-latency trading workflows in a global environment. 🗂️ Requirements: Proficiency in C#, Experience with React, Knowledge of Flow Derivatives, Experience maintaining desktop applications, Experience with backend development, Understanding of low-latency or event-driven systems, Ability to integrate services into trading workflows 📃 Skills: C#, React, Flow, Derivatives, Backend, EventDriven, Desktop, Web, MarketData, Performance 🏢 Description: C# Developer London £700pd - £750pd We are seeking a highly motivated C# Developer that will play a critical role in modernizing and enhancing the core Pricing and Booking platform within the Equity Derivatives business, ultimately supporting traders and sales teams in achieving operational excellence. You will work closely with both technology and business stakeholders to deliver impactful solutions directly to trading desks and senior leadership, contributing to mission-critical initiatives across global markets. emagine is a high-end professional services consultancy and solutions firm Specialising in providing business and technology services to the financial services sector, we power progress, solve challenges and deliver real results through tailored high-end consulting services and solutions. We have created a culture of openness and integrity by building genuine and strong relationships and partnerships, enabling us to be uncompromising in our dedication in delivering the optimal service for our clients. Our commitment is not just towards our clients but we aim to foster a positive and equitable working environment with our consultants and colleagues which stems from our core values: Confident, Dedicated, Responsible, Genuine. Main Responsibilities: Maintain and enhance the existing C# desktop application to ensure its stability and performance. Contribute to the development of a new web-based client using React and a modern backend architecture. Collaborate with cross-functional teams, including traders and sales stakeholders, to deliver effective solutions. Support the integration of new services into event-driven workflows to reduce latency and enhance performance. Engage with a globally distributed development model between teams in London and the US. Key Requirements: Proficiency in C# programming language. Flow Derivatives knowledge. Familiarity with web technologies, particularly React. Nice to Have: Background in financial technology or equity derivatives. Experience with backend development, particularly related to market data systems. Understanding of performance optimization in trading applications. If you are up to the challenge and would like to find out more, get in touch with us immediately, our internal recruitment team is always keen to hear from dynamic individuals that are looking to further their career and explore their full potential. “emagine is an equal opportunity employer, and employment practices are based strictly on merit. It is the policy of the Company to give equal opportunity in employment regardless of sex, sexual orientation, marital status, race, age, disability, gender reassignment, pregnancy and maternity, religion or ethnic origin” MLFC Based - 3 days a week.

Technology

emagine Polska

Equity Derivatives Developer

Senior

Hybrid

London, United Kingdom

750 - 850 PLN

🏢 Summary: Senior Python Developer role focused on building and enhancing pricing and booking services for Equity Structured Notes within a trading environment. The position involves developing structured product models, integrating with trading systems, and collaborating closely with trading and quantitative teams. It offers the opportunity to contribute to the ongoing evolution of a structured products platform. 🗂️ Requirements: Strong Python development skills, Expertise in Equity Structured Notes, Experience designing APIs, Background in trading systems or financial technology 📃 Skills: Python, APIs, Equities, StructuredNotes, TradingSystems, FinancialTechnology 🏢 Description: Python Developer - Equities London £750  - £850 emagine is a high-end professional services consultancy and solutions firm Specialising in providing business and technology services to the financial services sector, we power progress, solve challenges and deliver real results through tailored high-end consulting services and solutions. We have created a culture of openness and integrity by building genuine and strong relationships and partnerships, enabling us to be uncompromising in our dedication in delivering the optimal service for our clients. Our commitment is not just towards our clients but we aim to foster a positive and equitable working environment with our consultants and colleagues which stems from our core values: Confident, Dedicated, Responsible, Genuine. emagine consulting is seeking a Payments Business Analyst with experience in regulated financial services, ideally with exposure to Private Banking and Wealth Management environments. We are seeking a Solution Architect with a strong background in technology and an emphasis on KYC processes to join a dynamic team focused on driving the digitalization of key client processes. The ideal candidate will possess a deep understanding of client onboarding, product fulfillment, and client data maintenance, while leveraging modern technologies such as Generative AI, Machine Learning, Microservices, DevSecOps, and Cloud-based architectures. This role offers an opportunity to significantly impact the client experience and lead large-scale transformations across the organization. Main Responsibilities: Design and implement Python-based services for structured product modelling. Develop and enhance Pricing and Booking APIs for Equity Structured Notes. Implement structured product models, focusing on payoffs and lifecycle events. Integrate services with upstream trading systems and downstream platforms. Collaborate closely with trading, structuring, and quantitative teams. Support ongoing enhancements and functional build-out of the platform. Key Requirements: Strong Python development skills. Expertise in Equity Structured Notes domain. Experience with designing APIs. Background in trading systems or financial technology. Our people The ideal consultants will share our values and be aligned with our ways of working and as your career progresses, you can expect to work across all areas of the project lifecycle, from strategy to implementation. This will provide you with a broad base of experience from which to build an outstanding career. The ideal consultants will share our values and be aligned with our ways of working and as your career progresses, you can expect to work across all areas of the project lifecycle. Interested? At emagine, we are committed to building an international and diverse team by embracing our different backgrounds. If you are up to the challenge and would like to find out more, get in touch with us immediately, our internal recruitment team is always keen to hear from dynamic individuals that are looking to further their career and explore their full potential. “emagine is an equal opportunity employer, and employment practices are based strictly on merit. It is the policy of the Company to give equal opportunity in employment regardless of sex, sexual orientation, marital status, race, age, disability, gender reassignment, pregnancy and maternity, religion or ethnic origin”