python backend developer jobs in City of Westminster

Senior C++ Developer / Engineer (C++ Rust Low Latency Trading) London / WFH to £180k+ Are you a Senior C++ Developer to progress your career and transfer your skills to Rust? You could be joining a hugely profitable High Frequency Trading firm that specialise in crypto markets and earning substantial bonuses in a senior, hands-on Senior C++ Developer role. What's in it for you: - Salary to...

MUST BE BASED IN THE UK TO BE ELIGIBLE. Are you an experienced Back-end Engineer seeking new and exciting opportunities? While we may not have an immediate vacancy, we’re always on the lookout for talented individuals to join our Talent Pool. Who We AreGSK is a science-led global healthcare company with a special purpose: to help people do more, feel better, live longer. We are on an audacious...

Senior Data Engineer, SQL, RDBMS, Python, Celery, RabbitMQ, AWS, Part Central London, Mainly RemoteSenior Data Engineer (SQL, RDBMS, Python, AWS) required to work for a fast growing and exciting business based in Central London. However, this role is mainly remote.We need an experienced Data Developer who is a good people person, working with client facing teams outside of Technology, and also...

You will design, build, and maintain reliable data pipelines and integrations using Snowflake, Python, SQL, and C#. Skills and experience required: Strong proficiency in SQL, Python, and C# (including query optimisation and performance tuning). Experience with data modelling, ETL pipelines, and data integration.

A leading global bank in London is seeking a Credit Risk Modeler to support the development and maintenance of wholesale credit risk models. This role requires a strong background in quantitative analysis, programming skills in Python, and the ability to engage with stakeholders for data remediation. The position offers a hybrid working style, creating opportunities within a diverse and inclusive...

You will be responsible for building systems and APIs to enhance their marketing platform. The ideal candidate will have over 5 years of experience in Java or Kotlin, strong knowledge of the Spring framework, and experience in scraping technologies. Additional responsibilities include onboarding team members and developing new features from planning to release.

You will be positioned as a senior engineer with a specialisation in test automation and quality engineering, rather than someone who only executes test cases.

Founding BE Engineer (Python, FastAPI) Salary up to £85,000 +Equity London - 3 days a week Early stage MedTech Startup, building tools that help design better, fairer, and more effective clinical trials. Their work sits at the intersection of data, science, and human decision-making, which have a direct impact on the future of patient care. Your being joining a small, mission driven team, early...

You will work closely with engineering, trading, and operations teams, becoming the technical steward of a system that sits at the centre of our business. This roles scope extends beyond the optimization engine to include automation of trading and operational workflows, creatively removing manual processes and improving reliability and speed across the trading stack.

We believe in better. And we make it happen.Better content. Better products. And better careers.Working in Tech, Product or Data at Sky is about building the next and the new. From broadband to broadcast, streaming to mobile, Sky Q to Sky Glass, we never stand still. We optimise and innovate.We turn big ideas into the products, content and services millions of people love.And we do it all right...

DV Cleared Site Reliability Engineer London - 5 Days Onsite Up to £550 per day (Umbrella, Inside IR35) 12-Month Contract Must hold live and transferrable DV Clearance Are you passionate about reliability, automation, and supporting mission-critical systems? Join this global defence organisation as a Site Reliability Engineer (SRE) and help shape the future of one of the UK's most vital...

Senior Pricing Analyst Locations: Peterborough, Manchester, Stoke, Southport, Kent, London, Cambridgeshire (Hybrid/Remote options available) Department: Retail Pricing Hybrid and largely remote options available Join a fast-paced, innovative environment where your pricing insights and analytical skills will directly influence strategic decisions and drive profitability across a diverse...

We believe in better. And we make it happen. Better content. Better products. And better careers. Working in Tech, Product or Data at Sky is about building the next and the new. From broadband to broadcast, streaming to mobile, Sky Q to Sky Glass, we never stand still. We optimise and innovate. We turn big ideas into the products, content and services millions of people love. And we do it all...

MUST BE BASED IN THE UK TO BE ELIGIBLE. Are you an experienced Back-end Engineer seeking new and exciting opportunities? While we may not have an immediate vacancy, we’re always on the lookout for talented individuals to join our Talent Pool. Who We AreGSK is a science-led global healthcare company with a special purpose: to help people do more, feel better, live longer. We are on an audacious...

Back End Engineer / Developer (Rust High Frequency Trading) London / WFH to £180k+ Do you have expertise with low latency software engineering within finance or gaming environments? You could be progressing your career in a senior, hands-on Back End Engineer role at a hugely profitable High Frequency Trading firm that specialise in crypto markets and earning substantial bonuses. What's in it...

MUST BE BASED IN THE UK TO BE ELIGIBLE. Are you an experienced Full-stack Engineer seeking new and exciting opportunities? While we may not have an immediate vacancy, we’re always on the lookout for talented individuals to join our Talent Pool. Who We AreGSK is a science-led global healthcare company with a special purpose: to help people do more, feel better, live longer. We are on an audacious...

MUST BE BASED IN THE UK TO BE ELIGIBLE. Are you an experienced Cloud Engineer seeking new and exciting opportunities? While we may not have an immediate vacancy, we’re always on the lookout for talented individuals to join our Talent Pool. Who We AreGSK is a science-led global healthcare company with a special purpose: to help people do more, feel better, live longer. We are on an audacious...

MUST BE BASED IN THE UK TO BE ELIGIBLE. Are you an experienced AI/ML Developer seeking new and exciting opportunities? While we may not have an immediate vacancy, we’re always on the lookout for talented individuals to join our Talent Pool. Who We AreGSK is a science-led global healthcare company with a special purpose: to help people do more, feel better, live longer. We are on an audacious...

MUST BE BASED IN THE UK TO BE ELIGIBLE. Are you an experienced AI/ML Developer seeking new and exciting opportunities? While we may not have an immediate vacancy, we’re always on the lookout for talented individuals to join our Talent Pool. Who We AreGSK is a science-led global healthcare company with a special purpose: to help people do more, feel better, live longer. We are on an audacious...

MUST BE BASED IN THE UK TO BE ELIGIBLE. Are you an experienced AI/ML Developer seeking new and exciting opportunities? While we may not have an immediate vacancy, we’re always on the lookout for talented individuals to join our Talent Pool. Who We AreGSK is a science-led global healthcare company with a special purpose: to help people do more, feel better, live longer. We are on an audacious...