36 backend software engineer jobs found

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,...

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...

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,...

#### 3 - 6 month contract #### Company Description UK Robotics provides cutting-edge robotics and automation solutions with expertise in turnkey and modular integrated laboratory automation systems. Our flagship product, Revolution, is a dynamic scheduler powering next-generation lab automation in the Life Science industry. Role Description We are seeking a skilled Mid-Level Frontend Engineer with strong expertise in React and modern JavaScript ecosystems to join our growing development team.This role is central to building intuitive, high-performance user interfaces for our cloud platforms and automation systems. You will focus on delivering responsive, scalable, and maintainable frontend applications that power complex scheduling systems.You will collaborate closely with backend, cloud, and robotics engineers to design seamless user experiences that bridge cloud services with real-world laboratory automation systems.This is an opportunity to work at the...

CPU Research Engineer - (Contractor) About Huawei Research and Development UK Limited Founded in 1987, Huawei is a leading global provider of information and communications technology (ICT) infrastructure and smart devices. We have 207,000 employees and operate in over 170 countries and regions, serving more than three billion people around the world. Our vision and mission is to bring digital to every person, home and organization for a fully connected, intelligent world. To this end, we will drive ubiquitous connectivity and promote equal access to networks; bring cloud and artificial intelligence to all four corners of the earth to provide superior computing power where you need it, when you need it; build digital platforms to help all industries and organizations become more agile, efficient, and dynamic; redefine user experience with AI, making it more personalized for people in all aspects of their life, whether they’re at home, in the office, or on the...

About the Role   Join the Justice Redact team at the Ministry of Justice to design and build both the backend and frontend of an AI-powered Personally Identifiable Information (PII) redaction Minimum Viable Product (MVP). You'll work alongside Full-Stack Developers, Data Scientists, a User Researcher, Product Lead, Delivery Manager, Subject Matter Experts and a Senior Interaction Designer.   The team's Data Scientists have already developed an early prototype and you'll work closely with them to ensure everything runs smoothly, securely and reliably from front-end to back-end. This project addresses a major challenge: meeting rising demand for data through Subject Access Requests (SARs), Freedom of Information (FOI) requests and other information-heavy use cases. Current workflows are manual and fragmented, making it hard to meet strict legal deadlines and driving up costs. Your role will be pivotal in modernising these processes, improving efficiency and...

Joining a new project Ideally have worked on Financial Services Projects before (Payments would be great) Emphasis on Architecture over Development (Must have a solid Development Background) Must be comfortable sitting in client meetings and advising Start date ASAP Duration 3 months (Likely to extend) 3 days / week in person working (London) Immediate Interviews   The best bit about Red Badger is, of course, the team. We are really proud of our people; we support and learn a lot from each other; we work really hard but have fun doing it. We are a diverse group made up of 22 different nationalities, speaking 17 different languages.   Our 3 founders, Dave, Cain and Stu, who have considerable tech and consultancy experience and still own 100% of the company. We've been consistently profitable and have grown responsibly from the beginning.   We are based at Old Street in the heart of ʺtech cityʺ...

Role Overview We are seeking a skilled Full-Stack Software Engineer with exclusive expertise in React for frontend development and Python for backend development. The role focuses on building scalable, secure, and high performance web applications while working closely with product, design, and platform teams. Key Responsibilities Frontend (React) Design and develop responsive, modular, and accessible user interfaces using React Build reusable React components, shared libraries, and frontend design systems Manage complex client side state and optimize frontend performance Integrate frontend applications with REST APIs Ensure high standards of UX, accessibility, and cross browser compatibility Backend (Python) Design and implement scalable backend services using Python Develop RESTful APIs using Python frameworks such as Django / FastAPI / Flask Handle authentication, authorization, and secure data...

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...

Mindera are currently looking for a Senior Software Deployment Engineer who can lead the delivery, configuration, testing, and rollout of applications and retail device solutions across complex, large-scale environments. In this role you will help shape deployment strategy, drive automation, improve reliability, mentor engineers, and work closely with product, platform, and engineering teams to ensure smooth, secure, and high-quality releases that reaches thousands of customers. This is a hybrid role and you will be expected to be on site in Bracknell 3 days per week. Requirements Deployment & Configuration Leadership • Lead end-to-end deployment processes across Dev, Test, UAT, Pre-Prod, and Production. • Design scalable, repeatable deployment workflows and environment strategies. • Drive automation across CI/CD pipelines using scripting, IaC, and tooling improvements. • Ensure environment readiness, configuration integrity, and...

We are seeking a passionate Software Engineering Manager who will provide technical expertise and operate with excellence. Being creative, curious, and confident, you will be an integral part of our empowered, self-managing, multi-disciplinary engineering teams - designing, building, releasing, and maintaining products. You will play a key role in driving our ambition to create a best-in-class software engineering team, environment, and culture. This is an initial 6 month contract (outside IR35) that requires you to work on client site 3 days a week in London, Paddington. Requirements   Your key accountabilities will include: • Team Management: Build, mentor, and manage a high-performing software engineering team. Foster a culture of collaboration, innovation, and continuous improvement within the team. Facilitate communication and collaboration among team members. Ensure budgets, people and resource allocation, and workload, balance across projects....

Mindera are currently looking for a Software Deployment Engineer to deliver, configure, test, and roll out software and device solutions across multiple environments. You'll work closely with software engineers, product teams, and platform specialists to ensure seamless deployments that support millions of customers and thousands of colleagues. This role is perfect for someone who enjoys hands-on deployment, automation, configuration, testing, and troubleshooting across a wide technology landscape. This is a hybrid position where you will be expected to be onsite in Bracknell 3 days per week. Requirements Deployment & Configuration (Primary Focus) • Deploy application releases across Dev, Test, UAT, Pre-Prod, and Production environments. • Configure applications, services, and devices according to environment needs. • Automate deployment activities through CI/CD pipelines and scripting. • Manage deployment schedules, releases, and...

Mindera are currently looking for a Senior Software Deployment Engineer who can lead the delivery, configuration, testing, and rollout of applications and retail device solutions across complex, large-scale environments. In this role you will help shape deployment strategy, drive automation, improve reliability, mentor engineers, and work closely with product, platform, and engineering teams to ensure smooth, secure, and high-quality releases that reaches thousands of customers. This is a hybrid role and you will be expected to be on site in Bracknell 3 days per week. Requirements Deployment & Configuration Leadership Lead end-to-end deployment processes across Dev, Test, UAT, Pre-Prod, and Production. Design scalable, repeatable deployment workflows and environment strategies. Drive automation across CI/CD pipelines using scripting, IaC, and tooling improvements. Ensure environment readiness, configuration integrity, and release reliability. Define and...

Role Overview We are seeking a skilled Full-Stack Software Engineer with exclusive expertise in React for frontend development and Python for backend development. The role focuses on building scalable, secure, and high performance web applications while working closely with product, design, and platform teams. Key Responsibilities Frontend (React) Design and develop responsive, modular, and accessible user interfaces using React Build reusable React components, shared libraries, and frontend design systems Manage complex client side state and optimize frontend performance Integrate frontend applications with REST APIs Ensure high standards of UX, accessibility, and cross browser compatibility Backend (Python) Design and implement scalable backend services using Python Develop RESTful APIs using Python frameworks such as Django / FastAPI / Flask Handle authentication, authorization, and secure data flows Work...

Joining a new project Ideally have worked on Financial Services Projects before (Payments would be great) Emphasis on Architecture over Development (Must have a solid Development Background) Must be comfortable sitting in client meetings and advising Start date ASAP Duration 3 months (Likely to extend) 3 days / week in person working (London) Immediate Interviews     The best bit about Red Badger is, of course, the team. We are really proud of our people; we support and learn a lot from each other; we work really hard but have fun doing it. We are a diverse group made up of 22 different nationalities, speaking 17 different languages.     Our 3 founders, Dave, Cain and Stu, who have considerable tech and consultancy experience and still own 100% of the company. We've been consistently profitable and have grown responsibly from the beginning.     We are based at Old Street in the heart...

About Crumb Crumb is building the infrastructure for the independent legal economy. We believe that by 2030, the majority of lawyers will work independently. The standard for legal delivery has never been higher, but the tools to run an independent practice haven’t kept up. Crumb provides the operating system for fractional lawyers — helping them manage their practice, understand their work, invoice clients, and connect with new opportunities. The Role We’re looking for a Product Engineer (Contract) to help ship core features of the Crumb platform. You’ll work directly with the founders to build and launch production software quickly. This role is focused on execution — turning product ideas into working systems. You’ll work across the stack, building real product features used by independent lawyers. Typical work includes: Building product features end-to-end using React, Node.js, and TypeScript Implementing integrations and webhooks Designing asynchronous...

Mindera are currently looking for a Senior Software Deployment Engineer who can lead the delivery, configuration, testing, and rollout of applications and retail device solutions across complex, large-scale environments. In this role you will help shape deployment strategy, drive automation, improve reliability, mentor engineers, and work closely with product, platform, and engineering teams to ensure smooth, secure, and high-quality releases that reaches thousands of customers. This is a hybrid role and you will be expected to be on site in Bracknell 3 days per week. Requirements Deployment & Configuration Leadership Lead end-to-end deployment processes across Dev, Test, UAT, Pre-Prod, and Production. Design scalable, repeatable deployment workflows and environment strategies. Drive automation across CI/CD pipelines using scripting, IaC, and tooling improvements. Ensure environment readiness, configuration integrity, and release reliability....

Mindera are currently looking for a Software Deployment Engineer to deliver, configure, test, and roll out software and device solutions across multiple environments. You'll work closely with software engineers, product teams, and platform specialists to ensure seamless deployments that support millions of customers and thousands of colleagues. This role is perfect for someone who enjoys hands-on deployment, automation, configuration, testing, and troubleshooting across a wide technology landscape. This is a hybrid position where you will be expected to be onsite in Bracknell 3 days per week. Requirements Deployment & Configuration (Primary Focus) Deploy application releases across Dev, Test, UAT, Pre-Prod, and Production environments Configure applications, services, and devices according to environment needs Automate deployment activities through CI/CD pipelines and scripting Manage deployment schedules, releases, and environment readiness Validate...

Required Core Skills: AWS Cloud services with Python, AWS Lambda, DynamoDB, RDS, AppSync, RESTful APIs 1. AWS Cloud services with Python and its frameworks such as Django on the backend 2. Cloud - AWS such as Lambda, DynamoDB, RDS, AppSync. 3. Experience working with RESTful APIs and/or GraphQl 4.Good understanding of development best practices such as pair programming, TDD 5. Work in an agile Minimum years of experience: 8 to 10 Years Job Type: Freelance Pay: £300.00-£350.00 per day

Joining a new project Ideally have worked on Financial Services Projects before (Payments would be great) Emphasis on Architecture over Development (Must have a solid Development Background) Must be comfortable sitting in client meetings and advising Start date ASAP Duration 3 months (Likely to extend) 3 days / week in person working (London) Immediate Interviews   The best bit about Red Badger is, of course, the team. We are really proud of our people; we support and learn a lot from each other; we work really hard but have fun doing it. We are a diverse group made up of 22 different nationalities, speaking 17 different languages.   Our 3 founders, Dave, Cain and Stu, who have considerable tech and consultancy experience and still own 100% of the company. We've been consistently profitable and have grown responsibly from the beginning.   We are based at Old Street in the heart of ʺtech cityʺ...