Backend Engineer Java Python - 1,210+ job offers

About The Company Partnerscale is an innovative AI-first engineering firm specializing in enterprise retail and e-commerce solutions. With a focus on leveraging cutting-edge technologies, the company develops transformative products in generative AI, data pipelines, and marketing technology for reno

MCS Group

MCS Group are delighted to be partnering with an ambitious, product-led organisation building a brand new AI Centre of Excellence in Belfast. This is an opportunity to work on production-grade GenAI solutions that are actively deployed and delivering value. If you're a Python engineer who enjoys sol

Work Snapshot Type: Hourly contract Location: Remote Commitment: around 20 hours per week What You’ll Be Doing Support a model-training project with a leading foundational model AI lab Build and maintain complex, production-grade Python systems used in real-world environments Design modular, testabl

Work Snapshot Type: Hourly contract Location: Remote Commitment: around 20 hours per week What You’ll Be Doing Support a model-training project with a leading foundational model AI lab Build and maintain complex, production-grade Python systems used in real-world environments Design modular, testabl

Backend Engineer - Rust & Python Permanent | Up to £130,000 | London (Hybrid - 2 days onsite) We are seeking an ambitious Backend Engineer to join a fast-growing technology company at a pivotal stage of scaling. You will design and build distributed systems, storage infrastructure, and backend p

Client Server

£120,000 - £140,000 /year

Senior Software Engineer / Developer (Java Python Messaging) London / WFH to £140k Are you a Senior Software Engineer with strong Java development experience within finance / trading environments? You could be progressing your career in a hands-on Senior Software Engineer role at the Investment Mana

Backend Software Engineer / Developer (Python) London / WFH to £100k Opportunity for a skilled Software Engineer with strong backend Python skills to join a well-funded and profitable FinTech start-up. As a Backend Software Engineer you'll join a small, talented tech team to deliver new features and

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Staff Product Engineer (Backend, Java) in United Kingdom. This role is a high-impact opportunity for a senior backend engineer who thrives in designing, owning, and scaling complex distributed systems

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Staff Product Engineer (Backend, Java) in United Kingdom. This role is a high-impact opportunity for a senior backend engineer who thrives in designing, owning, and scaling complex distributed systems

Who you are Solid commercial development experience with strong proficiency in Java and Spring Boot, alongside hands-on experience building end-to-end full stack applications (frontend, backend, and APIs) Python (agent services, orchestration, LLM integrations) Experience working with modern fronten

Beyond Sports

# Software Engineer (Java) Are you passionate about building software solutions that engage millions of sports fans worldwide? Do you want to work in a collaborative environment, building cutting-edge technology that powers web and native applications across the sports industry? If so, we want to he

Job Req Id 26954519 Location(s) Belfast, Northern Ireland, United Kingdom Job Type Hybrid Posted Apr. 10, 2026 Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll

Senior Software Engineer / Developer (Java Python Messaging) London / WFH to £140k Are you a Senior Software Engineer with strong Java development experience within finance / trading environments? You could be progressing your career in a hands-on Senior Software Engineer role at the Investment Mana

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview Engi

Senior backend Java Mongo Engineer We are Hiring a highly skilled Senior Java Engineer to join our Streaming Platform team. You will design and build large-scale, high-throughput services using Java, Spring Boot microservices, distributed design patterns, GraphQL, AWS cloud services, and MongoDB per

I am hiring for Senior Platform Engineer – DevOps (Java/Data Streaming/Python) Location: Glasgow, UK (Hybrid – 2–3 Days Onsite) Job Description Design and develop scalable backend services and data platforms using Java (Spring Boot) and/or Python Build and maintain microservices and REST APIs ensuri

Citigroup

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180 countries operating at a scale few can match. From deploying advanced AI to helping shape global marke

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Senior Backend Engineer (Python / AWS Serverless) London, N7 (Hybrid) £75,000 – £90,000 + Equity Deep Tech Scale-Up Sponsorship available – must be UK-based and able to attend site. Intro We’re partnered with a well-funded deep tech scale-up with a global footprint, currently scaling their internal

IMPORTANT: THE CLIENT DOES NOT OFFER SPONSORSHIP OR A WORK VISA. To apply for the job, it is required to be a citizen or have all the necessary documentation to work legally. This role is focused on building and scaling event-based customer communication systems for a large-scale retail environment,