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8 backend software engineer jobs found

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Duration not stated backend software engineer Remote
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Contract Spy
Mar 12, 2026
Duration not stated
Python Developer - Remote $ 120/Hours at YO IT CONSULTING, United Kingdom, £80 - £200 an hour
Contract Spy Remote (United Kingdom)
hiring experienced Python Engineers to support a variety of high-impact research collaborations with leading AI labs. Freelancers will help improve AI systems through work extending coding benchmarks that reflect real-world development across diverse languages and domains. This is a unique opportunity to apply your engineering expertise toward shaping the next generation of intelligent systems. Key Responsibilities Develop and validate coding benchmarks in Python by curating issues, solutions, and test suites from real-world repositories Ensure benchmark tasks include comprehensive unit and integration tests for solution verification Maintain consistency and scalability of benchmark task distribution Provide structured feedback on solution quality and clarity Debug, optimize, and document benchmark code for reliability and reproducibility Ideal Qualifications 3–10 years of experience as a backend software engineer, ML engineer, or...
Contract Spy
Mar 10, 2026
Duration not stated
Golang/Go Developer LLM - Remote at YO IT CONSULTING, Remote, £Contract Rate
Contract Spy Remote
Work Mode: Remote Engagement Type: Independent Contractor Schedule: Full-Time or Part-Time Contract Language Requirement: Fluent English Role Description As an hourly-paid, fully remote Go Engineer for AI Data Training, you will review AI-generated Go code and explanations or generate your own, evaluate the reasoning quality and step-by-step problem-solving, and provide expert feedback that helps models produce answers that are accurate, logical, and clearly explained. You will assess solutions for correctness, readability, and adherence to backend-style best practices; identify errors in concurrency, error handling, or conceptual understanding; fact-check information; write high-quality explanations and model solutions that demonstrate idiomatic Go; and rate and compare multiple AI responses based on correctness and reasoning quality. This role is with, Careers, a fast-growing AI Data Services company and subsidiary of that provides AI training...
Contract Spy
Mar 03, 2026
Duration not stated
Golang/Go Developer LLM at YO IT CONSULTING, Remote, £Contract Rate
Contract Spy Remote
Work Mode: Remote Engagement Type: Independent Contractor Schedule: Full-Time or Part-Time Contract Language Requirement: Fluent English Role Description As an hourly-paid, fully remote Go Engineer for AI Data Training, you will review AI-generated Go code and explanations or generate your own, evaluate the reasoning quality and step-by-step problem-solving, and provide expert feedback that helps models produce answers that are accurate, logical, and clearly explained. You will assess solutions for correctness, readability, and adherence to backend-style best practices; identify errors in concurrency, error handling, or conceptual understanding; fact-check information; write high-quality explanations and model solutions that demonstrate idiomatic Go; and rate and compare multiple AI responses based on correctness and reasoning quality. This role is with, Careers, a fast-growing AI Data Services company and subsidiary of that provides AI training data...
Contract Spy
Mar 02, 2026
Duration not stated
Rust Developer -AI Training at YO IT CONSULTING, Remote, £Contract Rate
Contract Spy Remote (United Kingdom)
Contract Remote Role Description As an hourly paid, fully remote Rust Engineer for AI Data Training, you will review AI-generated Rust code and explanations or generate your own, evaluate the reasoning quality and step-by-step problem-solving, and provide expert feedback that helps models produce answers that are accurate, logical, and clearly explained. You will assess solutions for correctness, safety, and adherence to the prompt; identify errors in ownership, borrowing, lifetimes, or algorithmic reasoning; fact-check information; write high-quality explanations and model solutions that demonstrate idiomatic Rust patterns; and rate and compare multiple AI responses based on correctness and reasoning quality. This role is with, a fast-growing AI Data Services company and subsidiary of that provides AI training data for many of the world’s largest AI companies and foundation model labs. Your work will directly help improve the world’s premier AI models...
Contract Spy
Feb 26, 2026
Duration not stated
Back End Engineer - Python/Azure at Toucanberry Tech, Remote, £500 per day (Outside IR35)
£500 per day
Contract Spy Remote
Back End Engineer (Python & Azure) Delivering scalable data infrastructure that transforms manual financial and actuarial processes into automated, auditable workflows. To deliver robust, scalable backend systems and data infrastructure that power automated data pipelines and dashboards for financial services clients.   Requirements Hands On Experience:   Designing and implementing distributed, large-scale systems Architecting solutions from scratch across the full development lifecycle Working with event-driven architectures and data pipelines Building production Python applications with strong software engineering practices   Must Have:   Extensive production experience with Python including modern frameworks, testing, and deployment practices Proven experience designing and building distributed systems at scale Strong system architecture skills with ability to translate requirements into...
Contract Spy
Mar 10, 2026
Duration not stated
Senior Software Developer at Tangible, Remote, £Contract Rate
Contract Spy Remote
Location: Fully Remote Team: Tech Team Employment Type: Contract Tangible is a fast-growing, tech-driven platform providing liquidity solutions to LPs and GPs in the private-markets secondaries space. By combining deep sector expertise with modern infrastructure, we unlock liquidity across private equity, private credit, and real assets, transforming the industry and enabling investors to move faster and smarter. Tasks Design, develop, and maintain robust, scalable application features and services. Contribute to both client-facing and server-side components of the platform. Write clean, readable, and well-tested code following engineering best practices. Participate in architectural discussions and contribute to system design decisions. Collaborate closely with QA, DevOps, Product, and Design teams. Review code, participate in pull requests, and support pair programming. Share knowledge, contribute to documentation, and support onboarding...
Contract Spy
Mar 03, 2026
Duration not stated
Senior Software Developer at Tangible, Remote, £Contract Rate
Contract Spy Remote
Location: Fully Remote Team: Tech Team Employment Type: Contract Tangible is a fast-growing, tech-driven platform providing liquidity solutions to LPs and GPs in the private-markets secondaries space. By combining deep sector expertise with modern infrastructure, we unlock liquidity across private equity, private credit, and real assets, transforming the industry and enabling investors to move faster and smarter. Tasks Design, develop, and maintain robust, scalable application features and services. Contribute to both client-facing and server-side components of the platform. Write clean, readable, and well-tested code following engineering best practices. Participate in architectural discussions and contribute to system design decisions. Collaborate closely with QA, DevOps, Product, and Design teams. Review code, participate in pull requests, and support pair programming. Share knowledge, contribute to documentation, and support onboarding...
Contract Spy
Mar 02, 2026
Duration not stated
Senior Software Developer at Tangible, Remote, £Contract Rate
Contract Spy Remote (United Kingdom)
Location : Fully Remote Team : Tech Team Employment Type: Contract Tangible is a fast-growing, tech-driven platform providing liquidity solutions to LPs and GPs in the private-markets secondaries space. By combining deep sector expertise with modern infrastructure, we unlock liquidity across private equity, private credit, and real assets, transforming the industry and enabling investors to move faster and smarter. Tasks • Design, develop, and maintain robust, scalable application features and services. • Contribute to both client-facing and server-side components of the platform. • Write clean, readable, and well-tested code following engineering best practices. • Participate in architectural discussions and contribute to system design decisions. • Collaborate closely with QA, DevOps, Product, and Design teams. • Review code, participate in pull requests, and support pair programming. •...
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