Senior Software Engineer Python React jobs in Croydon

Principal Software Engineer | Front End (React) | London, Hybrid Our client is a forward-thinking global firm redefining the future of finance through technology. They are looking for a Principal React Engineer who can set the technical direction for the front-end, champion best practices, and still

SGI

£9,167 - £10,833 /year

Principal Software Engineer | Python, AWS | London, Hybrid Our client is a global investment manager with a strong footprint across major financial centres. They manage multi-asset, commodities, and derivatives strategies for institutional and wholesale clients worldwide. The environment combines th

Job Description J.P.MorganChase is seeking a Lead Software Engineer with expertise in AWS and Python, and a passion for Machine Learning, to help engineer and deploy innovative ML solutions into production. You will collaborate with the Applied AI/ML group and technology teams across the firm, contr

Job Description We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible. As a Lead Software Engineer at JPMorgan Chase within the Corporate Technology - Corporate Oversight & Governance group, you are an integral part of an agile tea

Are you a world-class Python engineer ready to push your technical limits in one of the most intellectually rigorous environments in finance? Our client is a leading quantitative investment fund—combining deep research, cutting-edge data science, and sophisticated trading systems to deliver exceptio

Software Engineer (Python) - Beacon Core Engineer {"description": " Job Summary: We are seeking a skilled and motivated Senior Software Engineer to join our dynamic team at CWAN. The role joins our Beacon Core Engineering team. The Core team develops large part of Beacon Cloud, just above the Platfo

*Python Software Engineer | £80 - £90** We're working with a leading global investment banking powerhouse on this exciting opportunity. You will join their Equity Linked Technology team to revolutionize front-to-back automation for a multi-billion dollar Structured Notes business. This is a high-imp

Role: Software Engineer Location: London (Hybrid / Flexible Working) Salary: £120,000 per annum + Benefits Overview We’re supporting a rapidly growing, innovation-led tech company in London that’s building advanced AI-driven solutions with real-world impact. As they continue to scale, they’re lookin

eFinancialCareers

Location: On-site London, 5 days per week Summary: My client is a world-class prop trading firm looking for a Python Software Engineer to join a global multi-asset trading team. This role offers the unique opportunity to influence the design and architecture of expanding trading systems and tooling,

Senior Software Engineer – AI Startup – Up to 160k 🚀🧠 💰 Salary: £70,000 - £160,000 + meaningful equity 🏙️ Location : London, flexible working arrangements, ideally 2/3 days in office 💻 Tech Stack : Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) Our y-combinator backend client

Vortexa

Description Vortexa is a fast-growing international technology business founded to solve the immense information gap that exists in the energy industry. By using massive amounts of new satellite data and pioneering work in artificial intelligence, Vortexa creates an unprecedented view on the global

Role: Junior Software Engineer (C++ / Python) Location: London (Hybrid) Compensation: Competitive Salary + Bonus Sector: Financial Technology Overview We’re currently partnered with a high-performing, technology-led organisation within the financial space, looking to hire a Junior Software Engineer

eFinancialCareers

£150k GBP Onsite WORKING Location: Central London, Greater London - United Kingdom Type: Permanent Platform Software Engineer (Python) - Core Engineering Location: London Location: London (Hybrid) Client: Tier-1 Global Banking Environment Domain: Platform Engineering / Core Systems Industry backgrou

Whistler Trading

About Whistler Alpha Research Whistler Alpha Research is a research arm of Whistler Trading, a systematic proprietary trading firm founded by industry leaders who previously built some of the most successful businesses in quantitative finance and high-frequency trading. We’re on a mission to build e

Job title: Senior SDET Client: Elite Trading Fintech Experience Level: 4+ Years Salary: up to £200,000 P/A + Bonus + Benefits Location: London Step into one of London’s most technically advanced trading environments, where speed, precision, and engineering excellence define success. This elite FinTe

Validus Risk Management

Description Validus is looking for a software engineer to join our back-end team. This team is responsible for designing, implementing and maintaining the systems and services powering the rapidly growing, award-winning technology offering at Validus. The back-end team is part of the broader technol

*The Role** The Platform Engineering team (PENG) builds Beacon Cloud -- the cloud-hosted Platform-as-a-Service that major financial institutions depend on for quantitative analytics, real-time risk management, and trade operations. Every client gets a fully isolated cloud environment with elastic co

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Role: Junior Software Engineer (C++ / Python) Location: London (Hybrid) Compensation: Competitive Salary + Bonus Sector: Financial Technology Overview We’re currently partnered with a high-performing, technology-led organisation within the financial space, looking to hire a Junior Software Engineer

eFinancialCareers

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview Citi