Tech jobs

Java Developer

A hands-on Java Developer role on a front-office technology team at a crypto trading firm, building and maintaining real-time pricing, market-making and live trading systems in close collaboration with Traders and Quantitative Researchers.

Java Python

Client Server

NewBe an early applicant UKFull-time

Java Developer - Trading Systems

Senior hands-on Java developer joining a client engagement to transform a complex C++ legacy trading system into a modern Java application. Day to day: building robust, secure, real-time trading systems with multithreaded Java, collaborating with Front Office trading teams and engineers, and using AI tools like Claude.

Software Developer - Placement

AI Analytics C++ Data Analytics Java +3 skills

A 9-month software developer placement (June 2027–March 2028) at Symphony in Northern Ireland for university students. The student works alongside senior developers across the software development lifecycle — coding, debugging, code reviews, and learning tools/frameworks — using languages such as Python, Java, or C++.

14 – 14 £ / hr

Jobtailor

Software Development Engineer

Agile API Api Design Automation AWS +16 skills

Backend software engineer building and maintaining a Therapeutic Molecule Registration platform: designing RESTful APIs, microservices, and cloud-native (AWS) systems for molecular data, using Python plus Java/Kotlin and Postgres, while collaborating closely with drug discovery and machine learning scientists.

F. Hoffmann-La Roche AG

NewBe an early applicant UKContract

Software Development Engineer

Agile AI API Automation AWS +16 skills

A senior engineer builds and maintains Roche's Therapeutic Molecule Registration platform — a cloud-native system consolidating molecule registration into one platform for AI-driven drug discovery. Day-to-day is Python-centric development (with Java/Kotlin), designing REST APIs and microservices on Postgres and AWS to serve molecular data to research and ML teams at massive scale.

Options Technology

C++ Software Developer

Agile AI Bash BDD Cloud +7 skills

A junior C++ developer joins Options' Market Data division in Cambridge to build and maintain low latency trading platforms across the full development lifecycle. Core stack: C++ with STL/Boost, Linux/Unix, BASH/Perl/Python scripting, and Agile practices with TDD and CI/CD.

Ncounter Technology Recruitment

NewBe an early applicant UKFull-time

C++ Software Developer

CI/CD C++ DevOps Java Linux +7 skills

Develop and optimise low-latency electronic trading systems — matching engines, FIX gateways and real-time market-data pipelines — using C++ (with some Java) on Linux, working hybrid from London alongside trading, product and infrastructure teams.

ITOL Recruit

NewBe an early applicant UKPart-timeIntern

IT Trainee Software Developer

AWS Business Development Cloud CSS Cybersecurity +3 skills

This is a self-paced, accredited online training programme (HTML, CSS, JavaScript, Python, AWS certification) for people with no prior experience, followed by help securing an entry-level software development placement in the UK paying £25k–£40k. Trainees study via video tutorials with tutor/mentor support over a few weeks to a few months.

25K – 40K £

ITOL Recruit

NewBe an early applicant UKPart-timeIntern

IT Software Developer (Trainee)

AWS Business Development Cloud CSS Cybersecurity +3 skills

Trainee software development programme: accredited online training in HTML, CSS, JavaScript, Python and cloud certifications (with tutor support, no prior experience needed), followed by help securing an entry-level software development placement in the UK paying £25K–£40K.

25K – 40K £

JobCubby

NewBe an early applicant UKJunior

Junior Software Developer (Java)

Analytics Blockchain CI/CD Cloud Data Analytics +16 skills

Junior Java developer at LMAX, a high-performance, ultra-low-latency financial exchange in London. Day to day involves pair programming on a distributed, event-driven core Java stack (MySQL, Kafka), with some Vue.js frontend, Python data analytics, and Kubernetes/Nomad deployment in a strong continuous-delivery culture.

LMAX Group

NewBe an early applicant UKJunior

Junior Software Developer (Java)

Analytics Blockchain CI/CD Cloud Data Analytics +16 skills

Junior Java developer at LMAX, an ultra-low-latency financial exchange built in core Java. Day to day involves pair programming and working across the stack: distributed, event-driven Java backends with MySQL and Kafka, Vue.js frontends, and Kubernetes/Nomad deployment, within a strong CI/continuous-delivery culture.

Marlin Selection Recruitment

NewBe an early applicant UKJunior

Junior Python Developer - Azure, Automation & AI

Junior developer joining Marlin Selection's Digital Experience, Automation & Transformation team to build internal tools, automations and integrations on the Microsoft stack. Hands-on, broad role across front-end, back-end and data, taking solutions from conception to deployment using Python, Azure and AI.

Setec Alpha

NewBe an early applicant UKSenior

Python Developer

CI/CD Data Ingestion DevOps Distributed Computing Docker +13 skills

Senior Python Engineer at a hedge fund's commodities trading business in London, building research infrastructure, real-time event-driven trading platforms, and distributed data systems. Core stack includes Python with Docker, Kubernetes, Kafka, MongoDB, and quantitative libraries like NumPy and PyTorch.

Wave Recruitment - Demo

Python Developer in Reading

CSS HTML Java JavaScript jQuery +2 skills

Full stack web developer role (posted as 'Python Developer') in Reading, UK: building and maintaining websites end to end for a seamless user experience, using HTML, CSS, JavaScript, PHP, WordPress, Java and jQuery. Needs 1+ year of similar experience; salary £26,000–£50,000.

26K – 50K £

Tempest Vane Partners

Python Developer

AWS Cloud Cloud Native Fintech Kubernetes +1 skills

First developer hire on a systematic hedge fund's options and volatility desk in Central London, building Python infrastructure and tooling that quant researchers and traders use for investment decisions. Core stack is Python with cloud-native exposure to AWS and Kubernetes; role is onsite 5 days per week.

Information Tech Consultants

Python Developer

A/B Testing Automation AWS Azure Cloud +22 skills

A data science/machine learning role in London: the person designs, trains, and deploys ML models into production, performs EDA and feature engineering, and runs experimentation using Python (Pandas, NumPy, SciPy, scikit-learn, TensorFlow/PyTorch), SQL, and big data/cloud tools like Spark, Hadoop, and AWS/Azure/GCP.

AAA Global

Python Developer

Python engineer at an algorithmic trading firm specialising in digital assets, building core systems used across trading, quantitative research and operations. Requires 2+ years of Python and Linux experience, with C++ and an interest in finance or crypto seen as a plus.

C++ Linux Python

Cubestech Ltd

Python Developer

Agile API Cloud CSS DevOps +25 skills

Full Stack Developer who designs, builds, and maintains scalable web applications using Python backends (FastAPI, Flask, or Django) and React.js frontends. Day-to-day work centers on REST APIs and microservices, Docker/Kubernetes deployments, code reviews, and Agile/Scrum collaboration.

Enfint

python developer in quantitative investment