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Senior Full Stack Developer
PASS by everyLIFE
Basildon
On-site
GBP 22,000 - 30,000
Full time
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Job summary
A leading technology company seeks a recent graduate or final-year university student to take ownership of developing their first app. In this 3-month fixed-term role, you will collaborate directly with the founder, working on cutting-edge wellness features and gaining valuable leadership experience. You will build a real product designed to integrate AI chatbots and cater to user needs, with the potential for a permanent position based on your performance.
Benefits
Qualifications
- University student (final year) or recent graduate in Computer Science, AI, or Data Science.
- Portfolio or GitHub demonstrating ability to build end-to-end applications.
- Familiar with using React, Python, Node.js and LLM integrations.
Responsibilities
- Lead development of REMEDE’s app, from integration to user-friendly features.
- Build and launch mobile and web app, ensuring compliance and user flow.
- Work agile-style with quick iterations and user feedback.
Skills
Education
Job description
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- Senior Full Stack Developer jobs in Basildon
We are looking for a recent graduate or final-year university student (Computer Science, AI, Data Science, or related) with the drive to build , learn, and take ownership of developing our first app .
About the Role
This is a hands-on, fixed-term role (3 months) where you'll lead development of REMEDE’s app. You will work directly with the founder to bring the platform to life—from AI chatbot integration to user-friendly wellness features.
You will be building real product, gaining leadership experience, and if the partnership works well, have the opportunity to join permanently.
What You'll Do
- Build and launch the app (mobile and web app)
- Set up backend for content, personalisation, and user flow
- Ensure privacy and compliance foundations (GDPR)
- Work agile-style with quick iterations and user feedback loops
What We're Looking For
- University student (final year) or recent graduate in CS, AI, Data Science, or Software Engineering
- Portfolio, GitHub, or strong projects that show you can build end-to-end
- Familiar with React, Python, Node.js, or similar frameworks
- Curious about LLMs, APIs, and chatbot integration
- Eager to learn startup-building and take on real ownership
- Bonus: interest in health, wellness, or personal development
Desired Tech Stack
· LLM integration (OpenAI / Gemini / Claude)
What You’ll Get
- Paid contract for 3 months (with flexibility around studies or other work)
- Full ownership of building the app alongside a mission-led founder
- Portfolio experience that stands out (especially in AI + healthtech)
- Opportunity to join permanently
- Remote and flexible structure
How to Apply
Just send your CV or LinkedIn + a quick note about why this excites you, or DM us on LinkedIn. Portfolio, side projects, or GitHub links are a big plus!
We are interviewing on a rolling basis.
This advertiser has chosen not to accept applicants from your region.
0
London, London Selby Jennings
Posted today
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Our client, a world-leading trading firm, are seeking talented Full Stack Developers to join their high-performance technology team. This role offers the opportunity to work with the firm's top engineers and developers, using Python and React to work on real-time trading operations and cutting-edge systems. You'll collaborate closely with trading desks/teams to build tools and infrastructure that directly impact trading performance and operational efficiency.
What you could do:Our client, a world-leading trading firm, are seeking talented Full Stack Developers to join their high-performance technology team. This role offers the opportunity to work with the firm's top engineers and developers, using Python and React to work on real-time trading operations and cutting-edge systems. You'll collaborate closely with trading desks/teams to build tools and infrastructure that directly impact trading performance and operational efficiency.
What you could do:- Develop and maintain a distributed-compute framework used across the firm, with a focus on supporting complex model training for the algorithmic trading team.
- Collaborate with Algo Developers and Traders to build backend services and intuitive UIs for monitoring trading processes, executing trades, and analysing risk.
- Design and implement web-based tools for post-trade analysis, middle office operations, and real-time trading oversight.
- Work across the full stack using Python for backend development and React with TypeScript for frontend interfaces.
- Work on products that have a material impact and serve the firm on a global level.
- Strong backend programming experience, particularly in Python, with a focus on building scalable and reliable systems.
- Proficiency in modern frontend development using JavaScript/TypeScript and React.
- Demonstrated ability to work across the full stack and enthusiasm for solving complex problems on both client and server sides.
- Experience building tools for data analysis, operational workflows, or trading systems is a strong plus.
- Excellent communication skills and a collaborative mindset, with the ability to work closely with technical and non-technical stakeholders.
1
Posted 4 days ago
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full time
Avanti Recruitment is working with an innovative software technology company who have developed a market-leading commercial SPA platform that has driven their global success. They are seeking a talented remote-working Full-stack .NET Developer to join their close-knit team of high-quality engineers.
You'll play a key role in the ongoing development and modernization of their sophisticated single-page application, working on everything from bug fixing and maintenance to upgrading frameworks and implementing CI/CD pipelines. This is an opportunity to work with cutting-edge technologies while maintaining and enhancing a high-quality commercial software product.
The company operates with a fully remote, supportive culture where developers have the freedom to make an impact. You'll be working alongside experienced engineers who are passionate about delivering exceptional user experiences and maintaining the highest code quality standards.
Key Responsibilities:
- Bug fixing and maintenance of the main application
- Application modernization - upgrading to latest framework versions (.NET, Vue.js, Nuxt)
- Designing and implementing CI/CD pipelines
- Collaborating on production releases
- Working with Azure services for optimal performance and scalability
Essential Technical Skills:
- Database: SQL Server, Entity Framework (Core & 6)
Team & Culture:
You'll join a small, talented team consisting of a hands-on CTO, full-stack engineer, and founder who also acts as product manager. The team operates fully remotely using Slack for communication, with daily stand-ups and regular code reviews. They use Jira for task tracking and Figma for designs.
Benefits:
- Salary: Up to 70,000
- Share options
- 24 days holiday
- Overtime paid at time and a half
- 4-5 days off during Christmas
This is an excellent opportunity to work with a market-leading product that continues to innovate and grow, offering great career prospects in a supportive, remote-first environment.
This advertiser has chosen not to accept applicants from your region.
2
Deptford, London Ganymede Solutions
Posted 11 days ago
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full time
Back-End or Full Stack Developer
£60,000 + Excellent Benefits (Negotiable)
Hybrid / Remote Options Available
We’re working with a forward-thinking organisation who are in the process of building a powerful new asset management system—and they’re looking to bring experienced Back-End or Full Stack Developers on board to drive this transformation.
As a key part of the development team, you’ll be involved in architecting and delivering robust, scalable backend solutions using PHP (Laravel), MySQL, and modern frontend technologies. You’ll be joining a collaborative and agile environment where autonomy and technical input are both valued and encouraged.
What you’ll be working with:
- PHP (Laravel) and MVC frameworks
- MySQL
- Linux-based environments
What we’re looking for:
- 3–6 years’ experience in a full stack or back-end developer role
- Strong professional background with PHP, Laravel, and MySQL
- Familiar with cloud-based tools and version control using Azure DevOps
- Comfortable working both autonomously and within a collaborative team
- Proactive, consultative approach to problem-solving
Nice to have:
- Experience with React, Node.js, Angular, or additional modern JS frameworks
This is an exciting opportunity to work on a greenfield project with long-term impact, using a modern stack and best development practices. On offer is a salary of £60,000 plus excellent benefits, flexible working, and the chance to be part of something genuinely rewarding.
Interested?
Apply now or get in touch for a confidential chat—we’d love to tell you more.
For more information, contact (url removed) or call Will on (phone number removed)
Ganymede is committed to creating a diverse workforce and is an equal opportunities employer. We welcome applications from all suitably qualified persons regardless of age, disability, gender, marriage and civil partnership, pregnancy and maternity, race, religion or belief, sex, and sexual orientation
This advertiser has chosen not to accept applicants from your region.
3
Deptford, London Ganymede Solutions
Posted 19 days ago
Job Viewed
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full time
Back-End or Full Stack Developer
£60,000 + Excellent Benefits (Negotiable)
Hybrid / Remote Options Available
We’re working with a forward-thinking organisation who are in the process of building a powerful new asset management system—and they’re looking to bring experienced Back-End or Full Stack Developers on board to drive this transformation.
As a key part of the development team, you’ll be involved in architecting and delivering robust, scalable backend solutions using PHP (Laravel), MySQL, and modern frontend technologies. You’ll be joining a collaborative and agile environment where autonomy and technical input are both valued and encouraged.
What you’ll be working with:
- PHP (Laravel) and MVC frameworks
- MySQL
- Linux-based environments
What we’re looking for:
- 3–6 years’ experience in a full stack or back-end developer role
- Strong professional background with PHP, Laravel, and MySQL
- Familiar with cloud-based tools and version control using Azure DevOps
- Comfortable working both autonomously and within a collaborative team
- Proactive, consultative approach to problem-solving
Nice to have:
- Experience with React, Node.js, Angular, or additional modern JS frameworks
This is an exciting opportunity to work on a greenfield project with long-term impact, using a modern stack and best development practices. On offer is a salary of £60,000 plus excellent benefits, flexible working, and the chance to be part of something genuinely rewarding.
Interested?
Apply now or get in touch for a confidential chat—we’d love to tell you more.
For more information, contact (url removed) or call Will on (phone number removed)
Ganymede is committed to creating a diverse workforce and is an equal opportunities employer. We welcome applications from all suitably qualified persons regardless of age, disability, gender, marriage and civil partnership, pregnancy and maternity, race, religion or belief, sex, and sexual orientation
This advertiser has chosen not to accept applicants from your region.
4
Deptford, London Ganymede Solutions
Posted 20 days ago
Job Viewed
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full time
Back-End or Full Stack Developer
£60,000 + Excellent Benefits (Negotiable)
Hybrid / Remote Options Available
We’re working with a forward-thinking organisation who are in the process of building a powerful new asset management system—and they’re looking to bring experienced Back-End or Full Stack Developers on board to drive this transformation.
As a key part of the development team, you’ll be involved in architecting and delivering robust, scalable backend solutions using PHP (Laravel), MySQL, and modern frontend technologies. You’ll be joining a collaborative and agile environment where autonomy and technical input are both valued and encouraged.
What you’ll be working with:
- PHP (Laravel) and MVC frameworks
- MySQL
- Linux-based environments
What we’re looking for:
- 3–6 years’ experience in a full stack or back-end developer role
- Strong professional background with PHP, Laravel, and MySQL
- Familiar with cloud-based tools and version control using Azure DevOps
- Comfortable working both autonomously and within a collaborative team
- Proactive, consultative approach to problem-solving
Nice to have:
- Experience with React, Node.js, Angular, or additional modern JS frameworks
This is an exciting opportunity to work on a greenfield project with long-term impact, using a modern stack and best development practices. On offer is a salary of £60,000 plus excellent benefits, flexible working, and the chance to be part of something genuinely rewarding.
Interested?
Apply now or get in touch for a confidential chat—we’d love to tell you more.
For more information, contact (url removed) or call Will on (phone number removed)
Ganymede is committed to creating a diverse workforce and is an equal opportunities employer. We welcome applications from all suitably qualified persons regardless of age, disability, gender, marriage and civil partnership, pregnancy and maternity, race, religion or belief, sex, and sexual orientation
This advertiser has chosen not to accept applicants from your region.
5
Posted today
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Full Stack Developer - London Reference Code: 267708-en_USContract Type:PermanentProfessional Communities: SaaS Solutions
Location: Manchester, UK
Type of role: Permanent
Mode of work: Hybrid
Get The Future You Want!
Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired by a collaborative community of colleagues around the world, and where you’ll be able to reimagine what’s possible. Join us and help the world’s leading organizations unlock the value of technology and build a more sustainable, more inclusive world.
Your Role
We are seeking a talented Full Stack Developer to join our team at Capgemini Financial Services. In this role, you will be responsible for developing and maintaining both front-end and back-end components of our financial services applications. You will work closely with our development team to ensure the seamless integration of all components.
- Implement user interfaces that are responsive, visually appealing, and performant.
- Create reusable and modular components using React.js to enhance development efficiency and maintainability.
- Manage component state and props to build dynamic and interactive interfaces.
- Implement state management using React built-in state management or external libraries like Redux or MobX.
- Ensure data consistency and manage application state effectively.
- Integrate with RESTful APIs or Graph QL endpoints to fetch and update data from the server.
- Handle data fetching, error handling, and data synchronization.
- Utilize third-party libraries and APIs to enhance application functionality (e.g., Axios for HTTP requests, Chart.js for data visualization).
- Optimize application performance by minimizing re-renders and using virtual DOM.
- Implement lazy loading, code splitting, and other performance optimization techniques.
- Write unit tests and perform debugging to identify and resolve issues.
- Perform thorough testing to ensure cross-browser and cross-device compatibility.
- Use version control systems (e.g., Git) to manage source code changes and collaborate with team members.
- Create and maintain documentation for code, components, and libraries. Document code structure and provide usage guidelines for team members.
- Collaborate with designers, back-end developers, and other team members to integrate front-end components with back-end systems
Your Profile
- Design, develop, and maintain web applications using React.js.
- Implement user interfaces that are responsive, visually appealing, and performant
- 4+yrs of experience in, React JS
- 4+yrs of experience in Java 8
- 4+yrs of experience PSP Defined SCU
About Capgemini
Capgemini is a global business and technology transformation partner, helping organizations to accelerate their dual transition to a digital and sustainable world while creating tangible impact for enterprises and society. It is a responsible and diverse group of 350,000 team members in more than 50 countries. With its strong over 55-year heritage, Capgemini is trusted by its clients to unlock the value of technology to address the entire breadth of their business needs. It delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fuelled by its market-leading capabilities in AI, cloud, and data, combined with its deep industry expertise and partner ecosystem. The Group reported 2023 global revenues of €22.5 billion.Get The Future You Want |
This advertiser has chosen not to accept applicants from your region.
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6
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About the role:
About the role:
ROLI is looking for a Senior Full Stack Developer to help grow our music learning and creation offerings.We're at a pivotal stage in our growth and are looking for an experienced engineer who is passionate about modern web technologies to join our Roli.com team . As a Senior Full Stack Developer, you'll play a key role in shaping the technical direction, improving our product metrics, and ensuring best practices across our web stack. You will report to the Roli.com Engineering Manager and work primarily on our JavaScript/Typescript stack to expand our e-commerce website, internal websites, RESTful APIs, and subscription services.
We do sprints and standups, communicate a lot, support each other, value each other's opinions, and constantly strive to collaboratively improve our working environment.
About ROLI: We are a creative, dynamic team that believes in the power of music to transform lives. Our mission is to help more people discover the joy of music through our hardware and software products - making piano learning accessible and engaging, as well as taking music creation to new heights.Responsibilities:- Lead the development and maintenance of scalable, high-performance codebases across ROLI repositories.
- Contribute to technical strategy, helping to define best practices and architectural decisions.
- Collaborate on design systems alongside UX designers.
- Implement frontend features whilst ensuring UX, performance, SEO, security and accessibility best practices are upheld.
- Build and maintain secure, scalable APIs with Node.js and a NoSQL database.
- Test user flows and business logic with automated tests.
- Debug issues across internal APIs, infrastructure, and third-party integrations.
- Mentor and collaborate with other developers through pair programming, code reviews, and knowledge sharing.
- Take ownership of site reliability and security best practices.
- Actively participate in our agile development process (sprint planning, retrospectives, stand-ups).
- Communicate progress to stakeholders and collaborate across departments.
- At least 5+ years of professional experience as a Full Stack Developer.
- Deep expertise in modern frontend frameworks (Astro, SolidJS, React, Next.js).
- Demonstrable previous work on customer-facing websites with a focus on user experience .
- Accustomed to reusable components and design systems.
- Strong understanding of SSR, SSG, SPA, or derived architectures.
- Experience leading projects: technical planning, task breakdown, estimation, and delivery .
- Hands-on experience building RESTful or GraphQL APIs , with Node.js and SQL/NoSQL databases.
- Experience integrating third-party services, APIs, and analytics tools.
- An understanding of security best practices on the web.
- Strong debugging skills and a problem-solving mindset.
- An inquisitive mind and demonstrable examples of implementing proactive solutions.
- Excellent interpersonal and communication skills with employees at all levels and good written English.
Must
- Frontend:
- HTML, CSS
- JavaScript (ES2020+), TypeScript
- SolidJS or React
- Unit-testing (Vitest / Jest / similar)
- End-to-end testing (Cypress / Playwright / similar)
- Backend :
- RESTful APIs
- Node.js
- SQL and/or NoSQL databases
- Unit-testing
- Integration testing
- Infrastructure:
- Vercel (or similar)
- AWS (S3, Lambda, ECS, SQS).
Recommended
- Astro
- Tailwind CSS
- GraphQL
- Figma
- Web accessibility
- JS and CSS animations
- State management libraries
- Express.js
- Experience with ecommerce platforms (Shopify or equivalent), headless CMSs and analytics tools integration (GTM, GA).
- Understanding of the ecommerce order lifecycle (order creation, shipping, promo codes, ERP, analytics, etc.).
- Prior experience working on high profile websites.
- A passion for music, technology, or startups.
- The opportunity to work with the leading, progressive minds within technology, hardware, and music creation to directly impact the way we create and interact with music
- A competitive salary according to your level of experience
- A range of meaningful benefits including:
- Following probation, a competitive health care cash plan and a generous bike-to-work scheme
- Hybrid working: 3 set days in our Highgate office( Monday, Wednesday, and Thursday) remote optional on Tuesday and Friday.
- A competitive company pension scheme following 3 months of full-time work
- 23 days holiday and the standard 8 statutory holiday days
- 5 day volunteering allowance
- 20 hours per year dedicated to volunteering within the local community
- Flexible working hours
- 'Lending Library' of all ROLI products
- Team member discounts on ROLI products
- Apple laptop and relevant software licenses for your role
- Generous Parental Leave policy
- Company-wide Hack Days and team outings
- In-house bike storage
- Currently on hold due to office renovation:
- Daily homemade plant-based lunches and limitless homemade GOLDnola
- Friends and family events
- We offer a hybrid working approach. We will discuss the latest updates with regards to remote working as part of our interview process.
Luminary ROLI Ltd wholeheartedly believes that difference stimulates a healthy and productive environment, as well as positively impacts the products we create. We actively encourage diversity of background and perspective. As an equal opportunities employer, we oppose all forms of unlawful or unfair discrimination in all of our employment related processes and matters.
This advertiser has chosen not to accept applicants from your region.
7
ME14 Ringlestone, South East Ganymede Solutions
Posted 11 days ago
Job Viewed
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full time
Senior Full Stack Developer
£70,000 + Excellent Benefits (Negotiable)
Hybrid / Remote Options Available
We’re working with a forward-thinking organisation who are in the process of building a powerful new asset management system—and they’re looking to bring experienced Back-End or Full Stack Developers on board to drive this transformation.
As a key part of the development team, you’ll be involved in architecting and delivering robust, scalable backend solutions using PHP (Laravel), MySQL, and modern frontend technologies. You’ll be joining a collaborative and agile environment where autonomy and technical input are both valued and encouraged.
What you’ll be working with:
- PHP (Laravel) and MVC frameworks
- MySQL
- Linux-based environments
What we’re looking for:
- 6+ years’ experience in a full stack or back-end developer role
- Strong professional background with PHP, Laravel, and MySQL
- Familiar with cloud-based tools and version control using Azure DevOps
- Comfortable working both autonomously and within a collaborative team
- Proactive, consultative approach to problem-solving
Nice to have:
- Experience with React, Node.js, Angular, or additional modern JS frameworks
This is an exciting opportunity to work on a greenfield project with long-term impact, using a modern stack and best development practices. On offer is a salary of £70,000 plus excellent benefits, flexible working, and the chance to be part of something genuinely rewarding.
Interested?
Apply now or get in touch for a confidential chat—we’d love to tell you more.
For more information, contact(url removed)or call Will on (phone number removed)
Ganymede is committed to creating a diverse workforce and is an equal opportunities employer. We welcome applications from all suitably qualified persons regardless of age, disability, gender, marriage and civil partnership, pregnancy and maternity, race, religion or belief, sex, and sexual orientation
This advertiser has chosen not to accept applicants from your region.
8
Posted 17 days ago
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contract
This role requires any succesful candidate to work in a hybrid manner, 3 days a week.
Retelligence are partnered with a fast-growing client based in North London working on exciting greenfield projects and require a senior full stack engineer. Candidates will need to have ambition and great experience managing and owning the full software lifecycle from architecture build and decisions, through testing phases and ultimately product deployment and maintenance.
Core technology utilised will include -
- React, with next.js
- node.js
- DevOps and CI/CD experience
- express.js
- building RESTful API's
- SQL & NoSQL experience
This advertiser has chosen not to accept applicants from your region.
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