1000+ Best python software engineer Jobs in London (June 2025)

we are building AlgoRisk AI – a next-generation platform that uses AI to transform how banks develop and govern financial models. We’re currently working on a number of projects across using GPT-4, React, Supabase, and modern LLM tools. This is a confidential, real-world project (not open-source). I’m inviting a small group of motivated contributors to work with me as unpaid interns or collaborators. What You’ll Gain: • Official Certificate of Contribution (AlgoRisk AI) • Mentorship from a fintech founder • Hands-on experience with real-world AI tooling • Strong reference or letter for future roles • Chance for future paid work post-MVP ⸻ Key Skills Needed (any 2–3 of these is enough): • React / Next.js (Frontend) • Supabase (Database + Auth) • OpenAI API (GPT-4/4o chat completion) • JavaScript or TypeScript • CodeMirror or Monaco Editor • Python / FastAPI (nice to have) • GitHub + version control • Curiosity to learn and build fast ⸻ Commitment: • Remote, flexible hours (20-30 hrs/week) • 3–5 weeks (initial phase) • Start immediately ⸻ How to Apply: DM us with: • Your name and country • LinkedIn or GitHub profile • A short sentence on why you’re interested Let’s build something impactful together.

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OXFORD LIFETECH CONSULTING LTD

We are seeking a highly competent and professional Personal Assistant to provide dedicated support to our CEO. This pivotal role ensures the smooth operation of the CEO's activities, enabling them to focus on strategic priorities. Key Responsibilities Executive Support: - Provide administrative, personal, and event-related support to the CEO - Manage the CEO’s calendar, scheduling appointments and prioritising time effectively - Screen, prioritise, respond to and delegate email and phone inquiries, ensuring appropriate follow-up Document, Data and Financial Management: - Draft, create, and send client quotes, proposals, and invoices - Automate repetitive tasks, manage data, and potentially even assist with web development or software projects - Reconcile payments, track accounts, and confirm invoice payments with senior management Event and Project Coordination: - Support the planning and execution of key meetings, events, and client engagements - Contribute to ad-hoc projects aligned with the company’s strategic objectives Other Duties: - Assist with sales reports, accounts preparation, and other administrative tasks - Support business growth initiatives, such as social media management and search engine optimisation, when needed Competencies Data science skills: Ability to code in R and or Python Language Proficiency: Written and spoken proficiency in Chinese, Malay, and English Intercultural Fluency: Comfortable working with diverse, global stakeholders and navigating cultural differences effectively. Deep cultural understanding across Central and East Asia Teamwork: Able to work collaboratively in a fast-paced, dynamic environment Independent Problem-Solving: Solutions-focused with a proactive approach to challenges Organisational Skills: Highly organised with exceptional attention to detail and time management Adaptability: Comfortable managing last-minute changes and shifting priorities Confidentiality: Maintains discretion, tact, and diplomacy in handling sensitive information Professionalism: Demonstrates excellent interpersonal and communication skills Required Qualifications Education: - GCSE or equivalent (preferred) Experience: - A minimum of two (2) years of professional experience as an assistant to a senior executive or founder, ideally in a start-up or small business setting Skills: - Positive, can-do attitude with the ability to handle last-minute changes - Proven ability to establish, maintain, and enhance professional relationships with a wide range of stakeholders - Advanced IT proficiency, including Python or R, Microsoft Word, Excel, and familiarity with internet tools Languages: - Excellent knowledge of Chinese (written and spoken), and good working knowledge of English and at least one other East Asian language Desirable Qualifications - Familiarity with CRM and bookkeeping software - Knowledge of social media marketing and search engine optimisation Role Details Location: London (on-site) Hours: 37.5 hours per week, with flexibility for occasional evening or weekend hours Type: Permanent, Full-Time Why Join Us? This is an exciting opportunity to play a key role in a growing consultancy with a global impact. If you thrive in a dynamic, multicultural environment and are ready to support a visionary leader, we’d love to hear from you. Application Process To apply, please submit your CV and a cover letter detailing your suitability for the role. Applications will be reviewed on a rolling basis.

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Bellmond Group Limited

We're hiring for a Senior Software Engineer within our fundamental modelling team. The primary goal of this team is to improve the predictive power of our models based on historical event data. The quality of our models is incredibly important to us and improvements on our models directly impact financial performance. You'll be working closely with researchers, helping maintain trading infrastructure, and helping the team scale and improve the systems at the heart of the business. You'll be working on data pipelines, build, support systems and infrastructure. A very wide ranging role requiring extensive experience across multiple technologies. The ideal candidate will be highly creative and enjoy generating new, innovative ways to tackle problems and suggesting improvements to existing methodologies; you'll have a high level of autonomy to design and implement tooling and systems in a way you feel would be best suited to the problem at hand. A strong knowledge of operating systems, networks, software architecture and practical experience in deploying that knowledge is essential. We are a hybrid working company, with staff coming into the office in London every Thursday, plus any other days they like, working remotely at home the rest of the time. Our typical working hours are 10 am to 6 pm UK time, Monday to Friday, but we support flexible working and trust our team to manage their own schedules to meet their goals. We're targeting Senior Developers for this role, ideally with several years of experience in mission-critical systems where precision, reliability, and fault tolerance are paramount. Our interview process is as follows: - A brief screening call to give you some more information about the role, answer any of your initial questions and to check your suitability for the role. - A 60 minute technical interview with our CTO and/or Team Lead, discussing your previous experience and also discussing some systems design challenges and how you'd approach them - A collaborative coding assessment day, working with one of our team on some sample problems. This isn't leetcode, it's more about systems design and your approach to tradeoffs. This will last from 10am until 4pm UK time. - An in person "meet the team" at our London office. Requirements At least one, ideally both of: - A degree in a technical subject from a top university demonstrating your ability to grasp and apply complex concepts. - Several years of senior-level experience in teams building mission-critical systems where precision and reliability are essential to success. Demonstrated professional expertise in the following areas: - Fluency in multiple programming languages, with substantial experience in Python as a priority. - Development and maintenance of Continuous Integration (CI) pipelines. - Complex deployments on AWS - Docker or comparable containerization technologies. Nice to have experience: - Experience using numpy/pandas/torch/etc - Experience with Golang Benefits Our salary range for the role is £40,000 to £80,000, depending on experience and interview performance. List of benefits: - Participation in the uncapped company bonus scheme, typically 10-20% of salary depending on experience. - 10% matched pension contributions - Private healthcare insurance - Long term illness insurance - Gym membership - Choose your own hardware & setup for your development environment.

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