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3209 senior backend developer jobs found

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senior backend developer
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En
Nov 16, 2025
Senior Backend Developer | Python | FastAPI | AWS | Postgres | Hybrid, London
Enigma Hybrid (London, UK)
Senior Backend Developer | Python | FastAPI | AWS | Postgres | Hybrid, London Our Mission We help traditional, operations-heavy businesses grow and scale using modern data and AI tools. These businesses are often the backbone of society—powering the food we eat, the cars we drive, and the buildings we live in. Historically, these industries have been underserved by the tech community and often rely on outdated systems. The biggest issue we’ve seen is around data: there’s lots of it, but it’s scattered, unstructured, and hard to use. Even when data is available, teams often don’t have the time or expertise to make the most of it. This limits growth and impacts the people working within these businesses. With recent advances in Large Language Models (LLMs), we now have the tools to unify messy data and present it in a way that's accessible and actionable for non-technical users. Our mission is to harness these breakthroughs to help every business—regardless of...
En
Nov 16, 2025
Senior Backend Developer | Python | FastAPI | AWS | Postgres | Hybrid, London
Enigma Hybrid (London, UK)
Senior Backend Developer | Python | FastAPI | AWS | Postgres | Hybrid, London Our Mission We help traditional, operations-heavy businesses grow and scale using modern data and AI tools. These businesses are often the backbone of society—powering the food we eat, the cars we drive, and the buildings we live in. Historically, these industries have been underserved by the tech community and often rely on outdated systems. The biggest issue we’ve seen is around data: there’s lots of it, but it’s scattered, unstructured, and hard to use. Even when data is available, teams often don’t have the time or expertise to make the most of it. This limits growth and impacts the people working within these businesses. With recent advances in Large Language Models (LLMs), we now have the tools to unify messy data and present it in a way that's accessible and actionable for non-technical users. Our mission is to harness these breakthroughs to help every business—regardless of...
En
Nov 16, 2025
Senior Backend Developer | Python | FastAPI | AWS | Postgres | Hybrid, London
Enigma Hybrid (London, UK)
Senior Backend Developer | Python | FastAPI | AWS | Postgres | Hybrid, London Our Mission We help traditional, operations-heavy businesses grow and scale using modern data and AI tools. These businesses are often the backbone of society—powering the food we eat, the cars we drive, and the buildings we live in. Historically, these industries have been underserved by the tech community and often rely on outdated systems. The biggest issue we’ve seen is around data: there’s lots of it, but it’s scattered, unstructured, and hard to use. Even when data is available, teams often don’t have the time or expertise to make the most of it. This limits growth and impacts the people working within these businesses. With recent advances in Large Language Models (LLMs), we now have the tools to unify messy data and present it in a way that's accessible and actionable for non-technical users. Our mission is to harness these breakthroughs to help every business—regardless of...
En
Nov 16, 2025
Senior Backend Developer | Python | FastAPI | AWS | Postgres | Hybrid, London
Enigma Hybrid (Slough, UK)
Senior Backend Developer | Python | FastAPI | AWS | Postgres | Hybrid, London Our Mission We help traditional, operations-heavy businesses grow and scale using modern data and AI tools. These businesses are often the backbone of society—powering the food we eat, the cars we drive, and the buildings we live in. Historically, these industries have been underserved by the tech community and often rely on outdated systems. The biggest issue we’ve seen is around data: there’s lots of it, but it’s scattered, unstructured, and hard to use. Even when data is available, teams often don’t have the time or expertise to make the most of it. This limits growth and impacts the people working within these businesses. With recent advances in Large Language Models (LLMs), we now have the tools to unify messy data and present it in a way that's accessible and actionable for non-technical users. Our mission is to harness these breakthroughs to help every business—regardless of...
VT
Nov 15, 2025
Senior Backend Developer (C#/.Net) | Brand New Trading Payments Desk | £130,000 + Bonus + Benefits | London Hybrid
VirtueTech Recruitment Group Hybrid (London, UK)
Senior Backend Developer (C#/.Net) | Brand New Trading Payments Desk | £130,000 + Bonus + Benefits | London Hybrid I am looking for a Senior Backend Engineer with a .Net (C#) focus for a Trading House that build cross asset trading systems. The FinTech are building from the ground up and currently expanding their team to work on a completely greenfield build, payments platform. As a Senior Backend, your role will be to come in and build out a new Payments platform working very closely with another engineer to redesign parts of the system and lead from the front in terms of the build. Responsible for developing new features for the public website and client portal. 💰This Senior Backend developer role is paying up to £130,000 + bonus + benefits 📍Located in London City, St Paul's, with 3 days per week from the office 🧑.Net, C#, .Net Core Responsibilities of the Senior Backend Developer: Designing, coding, and testing all components of modern web...
VT
Nov 15, 2025
Senior Backend Developer (C#/.Net) | Brand New Trading Payments Desk | £130,000 + Bonus + Benefits | London Hybrid
VirtueTech Recruitment Group Hybrid (London, UK)
Senior Backend Developer (C#/.Net) | Brand New Trading Payments Desk | £130,000 + Bonus + Benefits | London Hybrid I am looking for a Senior Backend Engineer with a .Net (C#) focus for a Trading House that build cross asset trading systems. The FinTech are building from the ground up and currently expanding their team to work on a completely greenfield build, payments platform. As a Senior Backend, your role will be to come in and build out a new Payments platform working very closely with another engineer to redesign parts of the system and lead from the front in terms of the build. Responsible for developing new features for the public website and client portal. 💰This Senior Backend developer role is paying up to £130,000 + bonus + benefits 📍Located in London City, St Paul's, with 3 days per week from the office 🧑.Net, C#, .Net Core Responsibilities of the Senior Backend Developer: Designing, coding, and testing all components of modern web...
VT
Nov 15, 2025
Senior Backend Developer (C#/.Net) | Brand New Trading Payments Desk | £130,000 + Bonus + Benefits | London Hybrid
VirtueTech Recruitment Group Hybrid (London, UK)
Senior Backend Developer (C#/.Net) | Brand New Trading Payments Desk | £130,000 + Bonus + Benefits | London Hybrid I am looking for a Senior Backend Engineer with a .Net (C#) focus for a Trading House that build cross asset trading systems. The FinTech are building from the ground up and currently expanding their team to work on a completely greenfield build, payments platform. As a Senior Backend, your role will be to come in and build out a new Payments platform working very closely with another engineer to redesign parts of the system and lead from the front in terms of the build. Responsible for developing new features for the public website and client portal. 💰This Senior Backend developer role is paying up to £130,000 + bonus + benefits 📍Located in London City, St Paul's, with 3 days per week from the office 🧑.Net, C#, .Net Core Responsibilities of the Senior Backend Developer: Designing, coding, and testing all components of modern web...
VT
Nov 15, 2025
Senior Backend Developer (C#/.Net) | Brand New Trading Payments Desk | £130,000 + Bonus + Benefits | London Hybrid
VirtueTech Recruitment Group Hybrid (Slough, UK)
Senior Backend Developer (C#/.Net) | Brand New Trading Payments Desk | £130,000 + Bonus + Benefits | London Hybrid I am looking for a Senior Backend Engineer with a .Net (C#) focus for a Trading House that build cross asset trading systems. The FinTech are building from the ground up and currently expanding their team to work on a completely greenfield build, payments platform. As a Senior Backend, your role will be to come in and build out a new Payments platform working very closely with another engineer to redesign parts of the system and lead from the front in terms of the build. Responsible for developing new features for the public website and client portal. 💰This Senior Backend developer role is paying up to £130,000 + bonus + benefits 📍Located in London City, St Paul's, with 3 days per week from the office 🧑.Net, C#, .Net Core Responsibilities of the Senior Backend Developer: Designing, coding, and testing all components of modern web...
OG
Nov 15, 2025
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote
Orbis Group Remote (Aberdeen North, Woodside, Aberdeen AB24 2UN, UK)
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote One of the most recognisable financial services companies in the UK is on the hunt for Backend Engineers. They are revolutionizing the way people manage their money and would love YOU to help them on their journey! You will be responsible for building scalable, high-performance Back End systems that power their banking platform. You Will: Design, develop and deploy scalable, high-performance Back End systems using Java/Python/Golang. Collaborate with the engineering team to define and implement new features and services. Roll features out to over 10,000,000 users and also close to 5,000 internal staff. You Have: Strong experience in Java/Python/Golang programming. Experienced with K8s/Docker Experience with AWS or other cloud platforms Strong test driven development Strong scalability and performance mindset Location - Full remote (from the UK) Duration - 6 months (Ave tenure of...
OG
Nov 15, 2025
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote
Orbis Group Remote (Slough, UK)
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote One of the most recognisable financial services companies in the UK is on the hunt for Backend Engineers. They are revolutionizing the way people manage their money and would love YOU to help them on their journey! You will be responsible for building scalable, high-performance Back End systems that power their banking platform. You Will: Design, develop and deploy scalable, high-performance Back End systems using Java/Python/Golang. Collaborate with the engineering team to define and implement new features and services. Roll features out to over 10,000,000 users and also close to 5,000 internal staff. You Have: Strong experience in Java/Python/Golang programming. Experienced with K8s/Docker Experience with AWS or other cloud platforms Strong test driven development Strong scalability and performance mindset Location - Full remote (from the UK) Duration - 6 months (Ave tenure of...
OG
Nov 15, 2025
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote
Orbis Group Remote (Chelmsford, UK)
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote One of the most recognisable financial services companies in the UK is on the hunt for Backend Engineers. They are revolutionizing the way people manage their money and would love YOU to help them on their journey! You will be responsible for building scalable, high-performance Back End systems that power their banking platform. You Will: Design, develop and deploy scalable, high-performance Back End systems using Java/Python/Golang. Collaborate with the engineering team to define and implement new features and services. Roll features out to over 10,000,000 users and also close to 5,000 internal staff. You Have: Strong experience in Java/Python/Golang programming. Experienced with K8s/Docker Experience with AWS or other cloud platforms Strong test driven development Strong scalability and performance mindset Location - Full remote (from the UK) Duration - 6 months (Ave tenure of...
OG
Nov 15, 2025
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote
Orbis Group Remote (Chester, UK)
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote One of the most recognisable financial services companies in the UK is on the hunt for Backend Engineers. They are revolutionizing the way people manage their money and would love YOU to help them on their journey! You will be responsible for building scalable, high-performance Back End systems that power their banking platform. You Will: Design, develop and deploy scalable, high-performance Back End systems using Java/Python/Golang. Collaborate with the engineering team to define and implement new features and services. Roll features out to over 10,000,000 users and also close to 5,000 internal staff. You Have: Strong experience in Java/Python/Golang programming. Experienced with K8s/Docker Experience with AWS or other cloud platforms Strong test driven development Strong scalability and performance mindset Location - Full remote (from the UK) Duration - 6 months (Ave tenure of...
OG
Nov 15, 2025
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote
Orbis Group Remote (Ipswich, UK)
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote One of the most recognisable financial services companies in the UK is on the hunt for Backend Engineers. They are revolutionizing the way people manage their money and would love YOU to help them on their journey! You will be responsible for building scalable, high-performance Back End systems that power their banking platform. You Will: Design, develop and deploy scalable, high-performance Back End systems using Java/Python/Golang. Collaborate with the engineering team to define and implement new features and services. Roll features out to over 10,000,000 users and also close to 5,000 internal staff. You Have: Strong experience in Java/Python/Golang programming. Experienced with K8s/Docker Experience with AWS or other cloud platforms Strong test driven development Strong scalability and performance mindset Location - Full remote (from the UK) Duration - 6 months (Ave tenure of...
OG
Nov 15, 2025
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote
Orbis Group Remote (watford, hertfordshire)
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote One of the most recognisable financial services companies in the UK is on the hunt for Backend Engineers. They are revolutionizing the way people manage their money and would love YOU to help them on their journey! You will be responsible for building scalable, high-performance Back End systems that power their banking platform. You Will: Design, develop and deploy scalable, high-performance Back End systems using Java/Python/Golang. Collaborate with the engineering team to define and implement new features and services. Roll features out to over 10,000,000 users and also close to 5,000 internal staff. You Have: Strong experience in Java/Python/Golang programming. Experienced with K8s/Docker Experience with AWS or other cloud platforms Strong test driven development Strong scalability and performance mindset Location - Full remote (from the UK) Duration - 6 months (Ave tenure of...
OG
Nov 15, 2025
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote
Orbis Group Remote (London, UK)
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote One of the most recognisable financial services companies in the UK is on the hunt for Backend Engineers. They are revolutionizing the way people manage their money and would love YOU to help them on their journey! You will be responsible for building scalable, high-performance Back End systems that power their banking platform. You Will: Design, develop and deploy scalable, high-performance Back End systems using Java/Python/Golang. Collaborate with the engineering team to define and implement new features and services. Roll features out to over 10,000,000 users and also close to 5,000 internal staff. You Have: Strong experience in Java/Python/Golang programming. Experienced with K8s/Docker Experience with AWS or other cloud platforms Strong test driven development Strong scalability and performance mindset Location - Full remote (from the UK) Duration - 6 months (Ave tenure of...
OG
Nov 15, 2025
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote
Orbis Group Remote (Doncaster, UK)
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote One of the most recognisable financial services companies in the UK is on the hunt for Backend Engineers. They are revolutionizing the way people manage their money and would love YOU to help them on their journey! You will be responsible for building scalable, high-performance Back End systems that power their banking platform. You Will: Design, develop and deploy scalable, high-performance Back End systems using Java/Python/Golang. Collaborate with the engineering team to define and implement new features and services. Roll features out to over 10,000,000 users and also close to 5,000 internal staff. You Have: Strong experience in Java/Python/Golang programming. Experienced with K8s/Docker Experience with AWS or other cloud platforms Strong test driven development Strong scalability and performance mindset Location - Full remote (from the UK) Duration - 6 months (Ave tenure of...
OG
Nov 15, 2025
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote
Orbis Group Remote (Basingstoke, UK)
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote One of the most recognisable financial services companies in the UK is on the hunt for Backend Engineers. They are revolutionizing the way people manage their money and would love YOU to help them on their journey! You will be responsible for building scalable, high-performance Back End systems that power their banking platform. You Will: Design, develop and deploy scalable, high-performance Back End systems using Java/Python/Golang. Collaborate with the engineering team to define and implement new features and services. Roll features out to over 10,000,000 users and also close to 5,000 internal staff. You Have: Strong experience in Java/Python/Golang programming. Experienced with K8s/Docker Experience with AWS or other cloud platforms Strong test driven development Strong scalability and performance mindset Location - Full remote (from the UK) Duration - 6 months (Ave tenure of...
OG
Nov 15, 2025
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote
Orbis Group Remote (Cheltenham, UK)
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote One of the most recognisable financial services companies in the UK is on the hunt for Backend Engineers. They are revolutionizing the way people manage their money and would love YOU to help them on their journey! You will be responsible for building scalable, high-performance Back End systems that power their banking platform. You Will: Design, develop and deploy scalable, high-performance Back End systems using Java/Python/Golang. Collaborate with the engineering team to define and implement new features and services. Roll features out to over 10,000,000 users and also close to 5,000 internal staff. You Have: Strong experience in Java/Python/Golang programming. Experienced with K8s/Docker Experience with AWS or other cloud platforms Strong test driven development Strong scalability and performance mindset Location - Full remote (from the UK) Duration - 6 months (Ave tenure of...
OG
Nov 15, 2025
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote
Orbis Group Remote (South Basildon and East Thurrock, Fobbing, Stanford-le-Hope SS17 9JA, UK)
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote One of the most recognisable financial services companies in the UK is on the hunt for Backend Engineers. They are revolutionizing the way people manage their money and would love YOU to help them on their journey! You will be responsible for building scalable, high-performance Back End systems that power their banking platform. You Will: Design, develop and deploy scalable, high-performance Back End systems using Java/Python/Golang. Collaborate with the engineering team to define and implement new features and services. Roll features out to over 10,000,000 users and also close to 5,000 internal staff. You Have: Strong experience in Java/Python/Golang programming. Experienced with K8s/Docker Experience with AWS or other cloud platforms Strong test driven development Strong scalability and performance mindset Location - Full remote (from the UK) Duration - 6 months (Ave tenure of...
OG
Nov 15, 2025
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote
Orbis Group Remote (Bournemouth, UK)
Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote One of the most recognisable financial services companies in the UK is on the hunt for Backend Engineers. They are revolutionizing the way people manage their money and would love YOU to help them on their journey! You will be responsible for building scalable, high-performance Back End systems that power their banking platform. You Will: Design, develop and deploy scalable, high-performance Back End systems using Java/Python/Golang. Collaborate with the engineering team to define and implement new features and services. Roll features out to over 10,000,000 users and also close to 5,000 internal staff. You Have: Strong experience in Java/Python/Golang programming. Experienced with K8s/Docker Experience with AWS or other cloud platforms Strong test driven development Strong scalability and performance mindset Location - Full remote (from the UK) Duration - 6 months (Ave tenure of...
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