Python Senior Software Engineer

Company IconHackajob Ltd
Location IconManchester

Our client is the digital and intelligence arm of a major defence company.Location(s): UK, Europe & Africa : UK : Manchester Our client is home to 4,500 digital, cyber and intelligence experts. We work collaboratively across...Read More>>.

Posted: October 21st, 2026
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Software Engineer (AWS, Python, C#/C++, CFD/FEA)

Company IconHays
Location Icon

Overview In this Oxford-based Software Engineer role you will develop core modules of a cloud-enabled engineering design platform and integrate them into a distributed AWS environment. You’ll produce production-grade code in C#, C++ or Py...Read More>>.

Posted: September 30th, 2026
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Python Software Engineer - Intraday Trading

Company IconMillennium Management
Location IconLondon

Overview In this role you will develop and optimize real-time analytics and market data solutions for Millennium’s intraday trading and portfolio management platforms. You’ll collaborate with R&D and front-office teams to deliver scalab...Read More>>.

Posted: October 1st, 2026
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Senior Software Engineer – ML Infrastructure (Python)

Company IconARM
Location IconCambridge

Overview In this role, you design and evolve frameworks to exercise, measure, and explain ML workloads at scale across Arm platforms. You’ll build tooling for ML validation and performance analysis, collaborating with ML software, systems...Read More>>.

Posted: October 1st, 2026
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Python Software Engineer Agentic AI

Company IconClient Server
Location IconLondon

Overview In this role you will design and deliver backend solutions and AI-enabled workflows that empower intelligent agents. You’ll work with a cross-functional team to implement robust APIs and prompt-driven systems leveraging LLMs. You...Read More>>.

Posted: October 5th, 2026
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Python Software Engineer Cyber Security

Company IconClient Server
Location IconLondon

Overview In this Python Software Engineer role, you will help build a Greenfield AI cybersecurity product within the R&D team. You’ll mainly develop backend services in Python while evaluating Rust and other emerging technologies to solve...Read More>>.

Posted: October 5th, 2026
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Python Software Engineer Conversational AI

Company IconClient Server
Location IconLondon

Overview In this remote-first role, you build and own production-grade AI systems and the infrastructure behind a conversational AI platform. You’ll design scalable backend services and integrate LLMs with third-party tools to deliver rel...Read More>>.

Posted: October 10th, 2026
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Senior AI Python Software Engineer

Company IconNearform
Location Icon

About the AI Senior Python Engineer roleAs a Senior Engineer at Nearform your main task will be designing & building applications using Python and AI tools. However as you’ll likely work on a variety of projects your responsibilities...Read More>>.

Posted: August 17th, 2026
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Senior Software Engineer in Test, Python

Company IconRoku
Location IconGreater Manchester

Roku Greater Manchester, England, United KingdomSenior Automation Engineer, PythonRoku Greater Manchester, England, United Kingdom2 weeks ago Be among the first 25 applicantsGet AI-powered advice on this job and more...Read More>>.

Posted: August 17th, 2026
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Lead Software Engineer: Go & Python, AI-Driven Platform

Company IconJPMorgan Chase & Co.
Location IconScotland

JPMorgan Chase & Co. is seeking a Lead Software Engineer within the Core Foundational Platforms team. You will contribute as a core technical member delivering trusted, scalable technology products in a secure environment.You will guide arc...Read More>>.

Posted: September 1st, 2026
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Senior Lead Software Engineer - Java & Python (Low-Latency)

Company IconJPMorgan Chase & Co.
Location IconLondon

JPMorganChase in London is seeking a Sr Lead Software Engineer (Java/Python) to help design, build, and deliver high-performance trading software within Digital Markets Execution Technology. You’ll contribute as a core technical member of an agi...Read More>>.

Posted: September 14th, 2026
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Python Software Engineer | Quant Trading

Company IconSelby Jennings
Location IconLondon

Our client is a technology-driven trading firm operating across global financial markets. They develop and run systematic and market-making strategies spanning multiple asset classes, supported by a sophisticated in-house technology platform bu...Read More>>.

Posted: September 14th, 2026
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Python Lead Software Engineer

Company IconJPMorgan Chase & Co.
Location IconLondon

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 IP - Network Services, you are an integral part of an agile...Read More>>.

Posted: September 14th, 2026
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GenAI-Driven Senior Software Engineer (Java/Python)

Company IconCitigroup Inc.
Location IconNorthern Ireland

Citigroup Inc. is seeking a Senior Software Engineer (Java or Python) to help shape next‑gen financial software. You will engage in full‑stack development, leverage Spring Boot/Core and Flask/FastAPI, and build cloud‑native solutions with mo...Read More>>.

Posted: September 14th, 2026
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Embedded Software Engineer: C++/Python, Full Lifecycle

Company Iconeg technology Ltd
Location IconCambridge

eg technology is seeking a Software Engineer with a science, engineering or mathematical background to tackle complex design challenges across embedded, desktop and mobile applications. You will contribute across the full software development life...Read More>>.

Posted: September 15th, 2026
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Platform Software Engineer (AWS, Python and/or Go)

Company IconLa Fosse
Location IconLondon

Senior Platform Engineer (AWS, Python and/or Go) This is a hybrid opportunity, requiring 1 day per week in their London office (Victoria). La Fosse are partnering with a leading global consultancy, who are looking for a software...Read More>>.

Posted: September 20th, 2026
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Software Engineer III - Python, AIML, AWS, EKS

Company IconJPMorganChase
Location IconLondon

Job Description J.P. Morgan is seeking a 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 join the Applied AI/ML Softw...Read More>>.

Posted: September 21st, 2026
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Senior SQL/Python Software Engineer

Company IconJPMorganChase
Location IconGlasgow

JPMorganChase in the United Kingdom is seeking a Software Engineer III within Corporate Technology to design and deliver trusted market-leading technology products in a secure, scalable way.You will contribute to architecture, data analysis...Read More>>.

Posted: September 21st, 2026
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Python Software Engineer | Trading Systems

Company IconSelby Jennings
Location IconLondon

Our client is a technology-driven trading firm operating across global financial markets. They develop and run systematic and market-making strategies spanning multiple asset classes, supported by a sophisticated in-house technology platform built...Read More>>.

Posted: September 21st, 2026
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Front Office Trading Software Engineer (C++/Python)

Company IconDRW
Location IconLondon

DRW is seeking a software engineer in London to join the Front Office Systems team. You will own trading tools for Cumberland and FICC desks, delivering scalable production systems and collaborating with traders to turn alpha signals into reliable...Read More>>.

Posted: September 21st, 2026
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DevOps Lead Software Engineer - Linux/Python/ Shell Scripting

Company IconJPMorgan Chase & Co.
Location IconLondon

The Low-latency technology group is looking for an experienced Software Engineer and Integration specialist with experience in equities markets, connectivity, systems integration and automation to join our JISU COB team in London. The JISU COB...Read More>>.

Posted: September 21st, 2026
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Software Engineer — OCaml, Python & Open-Source Impact

Company IconTum International Gmbh
Location IconLondon

Jane Street is seeking software engineers to design and build the systems and tools that run the firm. You'll work across trading desks and accounting teams, building foundational infrastructure and solving real problems.We value functional...Read More>>.

Posted: September 21st, 2026
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Software Engineer III – Python, AIML, AWS, EKS

Company IconJPMorgan Chase & Co.
Location IconLondon

J.P. Morgan is seeking a 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 join the Applied AI/ML Software Engineering team, col...Read More>>.

Posted: September 21st, 2026
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Lead Software Engineer - Java, Python, Cloud & AI

Company IconJPMorgan Chase & Co.
Location IconGlasgow

Are you ready to make a real impact in cloud financial management technology? At JPMorganChase, you'll collaborate with talented teams to deliver secure, scalable, and market-leading products. Here, you can push the boundaries of what's possibl...Read More>>.

Posted: September 21st, 2026
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Lead Software Engineer - Java & Python (Low-Latency)

Company IconJPMorganChase
Location IconLondon

J.P. Morgan is seeking a core technical contributor to join an agile team delivering trusted, market-leading technology products in a secure, scalable way.You will drive end-to-end software solutions across multiple business functions and l...Read More>>.

Posted: September 22nd, 2026
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Senior Lead Software Engineer (C++, Python) – HPC & Cloud

Company IconJPMorgan Chase & Co.
Location IconLondon

JPMorgan Chase & Co. in London seeks a Sr Lead Software Engineer to design, build, and optimize distributed computing solutions in HPC, K8s, and cloud environments.You will lead efforts across Python, C++, and Go, leveraging GenAI to improv...Read More>>.

Posted: September 24th, 2026
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Python Lead Software Engineer

Company IconAumni
Location IconLondon

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 IP - Network Services, you are an integral part of an agile...Read More>>.

Posted: September 26th, 2026
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Software Engineer III - Python, AIML, AWS, EKS

Company IconAumni
Location IconLondon

J.P. Morgan is seeking a 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 join the Applied AI/ML Software Engineering team, collab...Read More>>.

Posted: September 30th, 2026
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Lead Software Engineer - Java/Python/AI-ML

Company IconAumni
Location IconBournemouth

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 JPMorganChase within the Corporate Global Tax Technology team, you are an integral part o...Read More>>.

Posted: September 30th, 2026
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Lead AI-First Software Engineer (Java/Python)

Company IconAumni
Location IconGlasgow

J.P. Morgan’s Commercial & Investment Bank is seeking a Lead Software Engineer to advance AI-first technology solutions, public repositories, and external developer integrations.You will own open source governance, ensure secure, high-qua...Read More>>.

Posted: September 30th, 2026
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Software Engineer III - Python, AWS, AI/ML

Company IconJPMorgan Chase & Co.
Location IconGlasgow

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level. You’ll join a collaborative team where your ideas and skills help shape intelligent, data-driven products that power business innov...Read More>>.

Posted: October 3rd, 2026
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Senior Embedded Automotive Software Engineer (C++/Python)

Company IconWayve
Location IconLondon

Wayve is building the leading AI platform for autonomous driving, with offices in London and across the globe. This role focuses on high‑performance C++/Python software that interfaces self‑driving models with vehicle and embedded systems....Read More>>.

Posted: October 4th, 2026
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Python Software Engineer - SC Cleared

Company IconSearchability
Location Icon

Python Engineer / Data Engineer – SC ClearedNew Permanent Opportunity for an SC Cleared Python Engineer / Data Engineer with a leading Public Sector Consultancy Location: Bristol – hybrid working model Sa...Read More>>.

Posted: October 5th, 2026
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Software Engineer III- SDET, Python

Company IconAumni
Location IconGlasgow

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level.As a Software Engineer III at JPMorganChase within the Commercial & Investment Bank, particularly in the Payments Technology...Read More>>.

Posted: October 7th, 2026
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Senior Polyglot Software Engineer (JS/Python/Go)

Company IconYLD
Location IconLondon

YLD is a remote-first consultancy specialising in software engineering, product design, and data, with teams across London, Lisbon, and Porto. We seek a Senior Software Engineer to build scalable, fault-tolerant architectures and deliver outstandi...Read More>>.

Posted: October 9th, 2026
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C++ Software Engineer - C++, Python - Financial/Banking

Company IconN.P.A.
Location IconLondon

C++ Software Engineer - C++, Python - Financial/Banking. Candidates with varying levels of C++ and Python experience will be considered from Intermediate to Senior - ideal candidates will come from a Financial/Banking background with know...Read More>>.

Posted: October 14th, 2026
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Low-Latency C++ Software Engineer (C++/Python) in Finance

Company IconN.P.A.
Location IconLondon

N.P.A. is seeking a C++ Software Engineer to build high-performance, low-latency software for financial markets. The role collaborates with Product, Infrastructure and QA teams to deliver reliable code handling high TPS in a global environment....Read More>>.

Posted: October 14th, 2026
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DV Cleared Software Engineer - Python, Java, - Tier 1 Tech Service Proivider - MOD, HO, ISAR

Company IconOutpost Search Ltd.
Location IconPrescott

Hiring ** Hiring ** DV Cleared Software Engineer - Python, Java, C++ - Tier 1 Tech Service Proivider - MOD, HO, ISAR - London, Manchester, Gloucester, Ipswich Are you an experienced software engineer who enjoys solving genuinely complex tec...Read More>>.

Posted: October 18th, 2026
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Software / Platform Engineer (Python, Azure) (SC / NPPV3)

Company IconLa Fosse
Location IconLondon

Software Engineer / DevOps / Platform Engineer – Government Location: Remote Working (UK)Contract: Contract OpportunityClearance: Active SC or NPPV3 Clearance EssentialClient: UK Government...Read More>>.

Posted: October 16th, 2026
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Python Software Engineer Conversational Ai

Company IconClient Server Limited
Location IconLondon

Python Software Engineer / Developer (Conversational AI) Remote UK to £90k Are you a backend focussed Python Software Engineer looking for an opportunity to progress your career, whilst working remotely on a modern tech stack?...Read More>>.

Posted: October 17th, 2026
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Experienced Software Engineer - Java/Python, Cloud & Data

Company IconTesting Site - JPMC
Location IconLower Blandford St Mary

JPMorganChase within Global Technology is seeking an Experienced Software Engineer to design and deliver trusted technology products in a secure, scalable way. You will contribute to mobile, big data, payments, or cloud integration initiatives wit...Read More>>.

Posted: October 18th, 2026
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Software Engineer II (Python/React) — Analytics Platform

Company IconTesting Site - JPMC
Location IconLondon

JPMorganChase in London is seeking a Software Engineer II to join the Securities Services Analytics Technology team. You will work as a seasoned member of an agile group to design and deliver trusted data-driven software solutions across the full...Read More>>.

Posted: October 18th, 2026
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