Senior Software Engineer Python Scala Java - 8,082+ job offers

FlexTrade

FlexTrade Systems is a provider of customized multi-asset execution and order management trading solutions for buy- and sell-side financial institutions. Through deep client partnerships with some of the world's largest, most complex and demanding capital markets firms, we develop the flexible tools

Space Executive

We’re partnered with an AI-native customer experience platform that’s transforming how ecommerce brands support and engage with their customers through intelligent AI Agents. They’re now looking to hire a Senior Scala Software Engineer with strong Scala experience to help scale a high-performance ba

LSEG

We're proud to be recognised as a Great Place to Work in 2024 and 2025. Learn more about life and purpose of our company directly from the Romanian colleagues’ video: Bucharest, Romania | Where We Work | LSEG . Role Description: To re-implement and test existing StarMine Quant models in Python to pr

Darktrace

Darktrace is a global leader in AI for cybersecurity that keeps organizations ahead of the changing threat landscape every day. Founded in 2013, Darktrace provides the essential cybersecurity platform protecting nearly 10,000 organizations from unknown threats using its proprietary AI. The Darktrace

Experis

Key Responsibilities Design, develop, test, and support robust, production-ready software solutions , adhering to modern engineering best practices. Build and maintain microservices-based systems , with a strong focus on scalability, resilience, and performance. Develop and optimise scalable data pi

Abound

About Abound We’re redefining consumer lending in the UK, and beyond. Using advanced AI and Open Banking data, we make fair, affordable personal finance available to more people. While traditional lenders rely almost entirely on credit scores, we look at the full financial picture - how much you spe

Morgan McKinley

Senior Java / Python Engineer – AI & Cloud Engineering A leading global financial markets organisation is hiring a Senior Java / Python Engineer to join a high-impact Research Technology team building next-generation AI-enabled platforms across Asset & Wealth Management. This is a genuinely

Opus Recruitment Solutions

Python Software Developer (SC Cleared) Location: Newcastle, UK (Hybrid – 60% onsite) Contract Type Contract Duration: Initial 3–6 months Security Requirement Active SC Clearance required Overview We are seeking experienced Python Software Developers to support the delivery of large-scale analytics a

Jobs via eFinancialCareers

Senior Software Engineer (Java / Python / Cloud & AI) We're looking for a Senior Software Engineer to join a high-performing technology team building scalable, cloud-native applications and AI-powered solutions within a fast-paced enterprise environment. You'll work as part of an agile engineeri

Switch Tech Talent

£50,004 - £99,996 /year

Software Engineer (Defence - hiring mid to senior levels | 2yrs+) Newcastle (on-site) £50,000 - £100,000 + 10% bonus, private healthcare Defence Tech Start-up Software Engineer (Defence Tech) A growing defence-tech consultancy is seeking Software Engineers of various levels and disciplines to build

J.P. MORGAN

Job Description As a Lead Software Engineer at JPMorgan Chase within Markets Technology team, you are an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable way. Job responsibilities Executes creative s

Hudson River Trading

Hudson River Trading (HRT) is a quantitative trading firm at the forefront of technological innovation. We build and deploy cutting-edge systems within one of the world’s most advanced computing environments to power our global trading operations. Our bottom-up approach to projects and collaborative

Bright Ascension Ltd

£35,004 - £45,000 /year

Want to build real-world software that powers space missions? At Bright Ascension, we’re redefining how software is developed for the space industry — working with organisations across the globe, from space agencies to innovative start-ups. Our technology helps bring space systems to life faster, sm

IG India

Job Title Software Engineer (Java) Job Description So, who are we? IG Group is a FTSE 100 fintech operating across five continents, serving over 1.3m customers and handling billions of dollars in transactions – built on scale, trust, and proof. We didn't pivot to innovation; it's how we've always op

IG Group

Job Title Software Engineer (Java) Job Description So, who are we? IG Group is a FTSE 100 fintech operating across five continents, serving over 1.3m customers and handling billions of dollars in transactions – built on scale, trust, and proof. We didn't pivot to innovation; it's how we've always op

Rockstar Games

At Rockstar Games, we create world-class entertainment experiences. Become part of a team working on some of the most rewarding, large-scale creative projects to be found in any entertainment medium - all within an inclusive, highly-motivated environment where you can learn and collaborate with some

Primis

Software Engineer (Java) Location: UK/Ireland (remote) Please note : You need to be based in the UK or Ireland No Visa sponsorship offered Salary: Up to £50k Engineer systems that power real-world commerce. Our client is building the next generation of capabilities that power a fast-growing, merchan

Abbot CO

We are currently recruiting for an SC Cleared Java Developer to join a large-scale public sector programme, working on biometric systems. Location: 2 days per week in Solihull (occasional travel to Croydon) Rate: £450 per day (Outside IR35) Clearance: Active SC required F2F Interview at reading offi

YT Technologies

€65,000 - €65,000 /year

Requirements Must have: - We require at least 5 years of professional experience in a product-development setting. - We require strong proficiency in Python and C/C . - We require experience working across Windows and Linux platforms. - We require experience with complex systems that integrate hardw

Harnham - Data & Analytics Recruitment

£90,000 - £100,000 /year

Senior Software Engineer (Python) Hybrid London (2 days/week) Up to £100,000 + Benefits We're hiring a Senior Software Engineer to play a key role in building and scaling a high-impact ad-fraud prevention platform used globally. This is a senior IC role for engineers who enjoy ownership, solving com