1 to 25 of 143 Senior Developer Jobs in Essex

Senior Developer – High-Frequency Trading (Remote) | Build the Future of Finance Are you a seasoned engineer with a passion for performance, precision, and pushing the boundaries of what's technically possible? My client—an elite, founder-led crypto-tech outfit—is seeking a Senior Developer (HFT More ❯

Senior Developer – High-Frequency Trading (Remote) | Build the Future of Finance Are you a seasoned engineer with a passion for performance, precision, and pushing the boundaries of what's technically possible? My client—an elite, founder-led crypto-tech outfit—is seeking a Senior Developer (HFT More ❯

Senior Developer – High-Frequency Trading (Remote) | Build the Future of Finance Are you a seasoned engineer with a passion for performance, precision, and pushing the boundaries of what's technically possible? My client—an elite, founder-led crypto-tech outfit—is seeking a Senior Developer (HFT More ❯

Senior .NET Developer Fully Remote (UK based) Paying £75,000 - £80,000 Oliver Bernard are partnered with a Software Development company in the Sustainability sector. They are looking for a Senior Backend Developer with at least 5 years experience writing scalable, performant and maintainable code. The … the UK to be considered. Visa sponsorship is not available for this role. Salary is paying £75k-£80k + benefits. If you are a Senior .NET Developer who is looking for a great work life balance, whilst having lots of ownership and a key say in the direction … of your projects, please apply now for more info! Senior .NET Developer More ❯

Senior .NET Developer Fully Remote (UK based) Paying £75,000 - £80,000 Oliver Bernard are partnered with a Software Development company in the Sustainability sector. They are looking for a Senior Backend Developer with at least 5 years experience writing scalable, performant and maintainable code. The … the UK to be considered. Visa sponsorship is not available for this role. Salary is paying £75k-£80k + benefits. If you are a Senior .NET Developer who is looking for a great work life balance, whilst having lots of ownership and a key say in the direction … of your projects, please apply now for more info! Senior .NET Developer More ❯

Senior .NET Developer Fully Remote (UK based) Paying £75,000 - £80,000 Oliver Bernard are partnered with a Software Development company in the Sustainability sector. They are looking for a Senior Backend Developer with at least 5 years experience writing scalable, performant and maintainable code. The … the UK to be considered. Visa sponsorship is not available for this role. Salary is paying £75k-£80k + benefits. If you are a Senior .NET Developer who is looking for a great work life balance, whilst having lots of ownership and a key say in the direction … of your projects, please apply now for more info! Senior .NET Developer More ❯

Senior C# Developer/Backend Software Engineer (C# SQL T-SQL SSIS) Billericay to £75k Are you a skilled Senior C# Developer with a good knowledge of T-SQL and SSIS? You could be progressing your career in a senior role at an eCommerce payments … solutions provider that has experienced great success in the last year and is growing as a result. As a Senior C# Developer you will join an Agile development team and take responsibility for database and application development within the team. You'll create new functionality, manage and improve … able to produce clear and concise technical documentation You're collaborative and have good communication skills What's in it for you: As a Senior C# Developer you will earn a competitive package: Salary to £75k Bonus 25 days holiday Pension Life assurance Private medical care Pizza days More ❯

Senior C# Developer/Backend Software Engineer (C# SQL T-SQL SSIS) Billericay to £75k Are you a skilled Senior C# Developer with a good knowledge of T-SQL and SSIS? You could be progressing your career in a senior role at an eCommerce payments … solutions provider that has experienced great success in the last year and is growing as a result. As a Senior C# Developer you will join an Agile development team and take responsibility for database and application development within the team. You'll create new functionality, manage and improve … able to produce clear and concise technical documentation You're collaborative and have good communication skills What's in it for you: As a Senior C# Developer you will earn a competitive package: Salary to £75k Bonus 25 days holiday Pension Life assurance Private medical care Pizza days More ❯

Senior C# Developer/Backend Software Engineer (C# SQL T-SQL SSIS) Billericay to £75k Are you a skilled Senior C# Developer with a good knowledge of T-SQL and SSIS? You could be progressing your career in a senior role at an eCommerce payments … solutions provider that has experienced great success in the last year and is growing as a result. As a Senior C# Developer you will join an Agile development team and take responsibility for database and application development within the team. You'll create new functionality, manage and improve … able to produce clear and concise technical documentation You're collaborative and have good communication skills What's in it for you: As a Senior C# Developer you will earn a competitive package: Salary to £75k Bonus 25 days holiday Pension Life assurance Private medical care Pizza days More ❯

Senior C# Developer/Backend Software Engineer (C# SQL T-SQL SSIS) Billericay to £75k Are you a skilled Senior C# Developer with a good knowledge of T-SQL and SSIS? You could be progressing your career in a senior role at an eCommerce payments … solutions provider that has experienced great success in the last year and is growing as a result. As a Senior C# Developer you will join an Agile development team and take responsibility for database and application development within the team. You'll create new functionality, manage and improve … able to produce clear and concise technical documentation You're collaborative and have good communication skills What's in it for you: As a Senior C# Developer you will earn a competitive package: Salary to £75k Bonus 25 days holiday Pension Life assurance Private medical care Pizza days More ❯

Senior Developer (SC Cleared) Location: Remote with occasional travel The Company At Amber Labs, we are a cutting-edge UK and European technology consultancy that prioritises autonomy, experimentation, and rapid learning to deliver exceptional value to our clients. Our company culture is deeply collaborative, ensuring that all colleagues … and accelerate delivery. Our team consists of highly skilled cross-functional consultants, analysts, and support staff. Job Overview We are seeking a highly skilled Senior Developer to join our dynamic team. You will lead the development and enhancement of web applications using HTML, CSS, JavaScript, Node.js, Express.js, and More ❯

Senior Developer (SC Cleared) Location: Remote with occasional travel The Company At Amber Labs, we are a cutting-edge UK and European technology consultancy that prioritises autonomy, experimentation, and rapid learning to deliver exceptional value to our clients. Our company culture is deeply collaborative, ensuring that all colleagues … and accelerate delivery. Our team consists of highly skilled cross-functional consultants, analysts, and support staff. Job Overview We are seeking a highly skilled Senior Developer to join our dynamic team. You will lead the development and enhancement of web applications using HTML, CSS, JavaScript, Node.js, Express.js, and More ❯

Senior Developer (SC Cleared) Location: Remote with occasional travel The Company At Amber Labs, we are a cutting-edge UK and European technology consultancy that prioritises autonomy, experimentation, and rapid learning to deliver exceptional value to our clients. Our company culture is deeply collaborative, ensuring that all colleagues … and accelerate delivery. Our team consists of highly skilled cross-functional consultants, analysts, and support staff. Job Overview We are seeking a highly skilled Senior Developer to join our dynamic team. You will lead the development and enhancement of web applications using HTML, CSS, JavaScript, Node.js, Express.js, and More ❯

Our two key sites are futwiz.com and pikawiz.com, with more being launched shortly. Role Description This is a full-time remote role for a Senior Developer at Wiz Media. The Senior Developer will be responsible for the day-to-day tasks associated with developing, maintaining, and More ❯

Our two key sites are futwiz.com and pikawiz.com, with more being launched shortly. Role Description This is a full-time remote role for a Senior Developer at Wiz Media. The Senior Developer will be responsible for the day-to-day tasks associated with developing, maintaining, and More ❯

Our two key sites are futwiz.com and pikawiz.com, with more being launched shortly. Role Description This is a full-time remote role for a Senior Developer at Wiz Media. The Senior Developer will be responsible for the day-to-day tasks associated with developing, maintaining, and More ❯

Do you have a PhD in Computer Science? FULLY REMOTE Senior Java Developer – Sustainable Energy GreenTech Salary : £100-140k + benefits Location : fully remote from anywhere in the UK I am partnered with a unique energy software platform that is helping consumers transition towards a sustainable future … by producing energy as a services. They are in search of an enthusiastic and knowledgeable Senior Java Developer with a strong comprehension of the Core Java principles alongside a deep understanding in Advanced Computer Science: Algorithms Graph theory Interval graphs Compiler theory You will be a fantastic Senior Java Developer if you have worked with Core Java and have extensive experience with Multithreading, Concurrency and Low Latency, because you will be building your own frameworks and designing new databases from scratch. Your role as a Senior Java Developer will include: - Domain modelling - Requirement engineering More ❯

Do you have a PhD in Computer Science? FULLY REMOTE Senior Java Developer – Sustainable Energy GreenTech Salary : £100-140k + benefits Location : fully remote from anywhere in the UK I am partnered with a unique energy software platform that is helping consumers transition towards a sustainable future … by producing energy as a services. They are in search of an enthusiastic and knowledgeable Senior Java Developer with a strong comprehension of the Core Java principles alongside a deep understanding in Advanced Computer Science: Algorithms Graph theory Interval graphs Compiler theory You will be a fantastic Senior Java Developer if you have worked with Core Java and have extensive experience with Multithreading, Concurrency and Low Latency, because you will be building your own frameworks and designing new databases from scratch. Your role as a Senior Java Developer will include: - Domain modelling - Requirement engineering More ❯

Do you have a PhD in Computer Science? FULLY REMOTE Senior Java Developer – Sustainable Energy GreenTech Salary : £100-140k + benefits Location : fully remote from anywhere in the UK I am partnered with a unique energy software platform that is helping consumers transition towards a sustainable future … by producing energy as a services. They are in search of an enthusiastic and knowledgeable Senior Java Developer with a strong comprehension of the Core Java principles alongside a deep understanding in Advanced Computer Science: Algorithms Graph theory Interval graphs Compiler theory You will be a fantastic Senior Java Developer if you have worked with Core Java and have extensive experience with Multithreading, Concurrency and Low Latency, because you will be building your own frameworks and designing new databases from scratch. Your role as a Senior Java Developer will include: - Domain modelling - Requirement engineering More ❯

Senior WordPress Developer PHP - Laravel - JS/JQuery £400-450 per day, Outside IR35 Fully Remote (Must be based in the UK) Initial 6 week contract (Very likely to extend) Start date: 16th of June One of our longstanding partners urgently requires the services of a Senior WordPress Developer on an Outside IR35 Contract basis, initially until the end of July, with the strong likely hood of longer term extensions. This Contract would suit an experienced Senior WordPress Developer who is ideally comfortable across the Full Stack, however this role will have a More ❯

Senior WordPress Developer PHP - Laravel - JS/JQuery £400-450 per day, Outside IR35 Fully Remote (Must be based in the UK) Initial 6 week contract (Very likely to extend) Start date: 16th of June One of our longstanding partners urgently requires the services of a Senior WordPress Developer on an Outside IR35 Contract basis, initially until the end of July, with the strong likely hood of longer term extensions. This Contract would suit an experienced Senior WordPress Developer who is ideally comfortable across the Full Stack, however this role will have a More ❯

Senior WordPress Developer PHP - Laravel - JS/JQuery £400-450 per day, Outside IR35 Fully Remote (Must be based in the UK) Initial 6 week contract (Very likely to extend) Start date: 16th of June One of our longstanding partners urgently requires the services of a Senior WordPress Developer on an Outside IR35 Contract basis, initially until the end of July, with the strong likely hood of longer term extensions. This Contract would suit an experienced Senior WordPress Developer who is ideally comfortable across the Full Stack, however this role will have a More ❯

Senior Frontend Developer - with Full Stack Experience | £70K | Fully Remote (UK-based) Are you a Senior Frontend developer/React Developer who thrives on crafting elegant, user-centric applications, and also enjoys getting stuck into backend logic when needed? Want to work in a team … of the best places to work in the UK. They’re now looking to add one more A-Player to their Engineering team, a Senior Frontend Engineer who’s also comfortable getting hands-on with Node.js on the backend when needed. You'll be joining a high-performing team More ❯

Senior Frontend Developer - with Full Stack Experience | £70K | Fully Remote (UK-based) Are you a Senior Frontend developer/React Developer who thrives on crafting elegant, user-centric applications, and also enjoys getting stuck into backend logic when needed? Want to work in a team … of the best places to work in the UK. They’re now looking to add one more A-Player to their Engineering team, a Senior Frontend Engineer who’s also comfortable getting hands-on with Node.js on the backend when needed. You'll be joining a high-performing team More ❯

Senior Frontend Developer - with Full Stack Experience | £70K | Fully Remote (UK-based) Are you a Senior Frontend developer/React Developer who thrives on crafting elegant, user-centric applications, and also enjoys getting stuck into backend logic when needed? Want to work in a team … of the best places to work in the UK. They’re now looking to add one more A-Player to their Engineering team, a Senior Frontend Engineer who’s also comfortable getting hands-on with Node.js on the backend when needed. You'll be joining a high-performing team More ❯