17 senior backend developer jobs found

About Us We are a technology solutions provider specialising in the public sector. Our mission is to help government organisations become truly data-driven by transforming their digital services, streamlining operational processes, improving citizen outcomes, and enhancing transparency across public services. We work closely with government bodies to design and deliver modern, secure, and scalable digital solutions that have real-world impact. The Role We are looking to engage a Full Stack Developer on a contract basis to support the delivery of high-quality digital services within the UK public sector. You will play a key role in designing, building, and maintaining robust full-stack applications, working closely with multidisciplinary teams including product managers, designers, and other engineers. This role requires a hands-on senior developer who is comfortable working across the full software development lifecycle and who understands the standards,...

Job Posting: Product Engineer (Full Stack & AI-Native)     Location: Remote (UK-based preferred for timezone alignment) Type: Contract / Freelance (with potential for long-term partnership) Stage: Stealth Mode / Pre-Launch     The Opportunity We are a stealth-mode startup building a premium digital ecosystem designed to solve the Connectivity Paradox in the UK business market. We are bridging the gap between social networking and high-value transactional brokerage for business owners and investors. We are looking for a Product Engineer —not just a ticket-taker, but a builder who understands that code is a means to a business end. You will work directly with the Lead Product Manager/Architect to build, ship, and iterate on our MVP. This is not a traditional dev role. We embrace an Agentic SDLC . We don't want you typing boilerplate; we want you architecting solutions, utilizing AI tools (Copilot, Agents) to accelerate...

Toucanberry Tech is a UK-based boutique software consultancy delivering high-impact solutions to the financial sector. You’ll be joining a pivotal project, building a cutting-edge reinsurance platform from the ground up for a global reinsurer in Bermuda. ROLE: We are looking for a hungry and hands-on Product Owner to join our dedicated onshore team. This is not a project management role; we need a modern start up Product Owner who lives and breathes the product, sits side-by-side with our developers, and is passionate about building exceptional backend, data-centric solutions. Key Responsibilities: Own and manage the product backlog, translating high-level business requirements into clear, actionable user stories for the development team. Collaborate daily with a co-located, onshore squad of engineers, QAs, and designers to ensure seamless delivery and a shared understanding of the product vision. Define and analyse metrics to inform the success of the...

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. We are looking for a Platform Engineer/SRE to own Tangible’s cloud infrastructure, system reliability, and core platform services. This role goes beyond traditional DevOps. You will be responsible for availability, scalability, and resilience, while also building and maintaining core internal services in Python and Node.js that enable product teams to move fast and safely. Tasks Own and operate Tangible’s AWS infrastructure, ensuring high availability, reliability, and performance Act as the primary owner of system uptime, incident response,...

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...

Location: Fully Remote (accepting applications globally) Team: Tech Team Employment Type: Contract * *Company Description * * 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. We’re looking for a smart, curious AI-driven Test Automation Engineer who loves breaking systems, automating the boring stuff, and using AI as a daily co-pilot. This role is heavily Cursor-driven, focused on building and evolving automated tests using Cypress, while understanding both manual QA procedures and automation principles. You don’t need 10 years of QA experience: we care more about how you think, how fast you learn, and how well you use AI to amplify your impact....

Toucanberry Tech is a UK-based boutique software consultancy delivering high-impact solutions to the financial sector. You’ll be joining a pivotal project, building a cutting-edge reinsurance platform from the ground up for a global reinsurer in Bermuda. ROLE: We are looking for a hungry and hands-on Product Owner to join our dedicated onshore team. This is not a project management role; we need a modern start up Product Owner who lives and breathes the product, sits side-by-side with our developers, and is passionate about building exceptional backend, data-centric solutions. Key Responsibilities: Own and manage the product backlog, translating high-level business requirements into clear, actionable user stories for the development team. Collaborate daily with a co-located, onshore squad of engineers, QAs, and designers to ensure seamless delivery and a shared understanding of the product vision. Define and analyse metrics to inform the success of the...

Toucanberry Tech is a UK-based boutique software consultancy delivering high-impact solutions to the financial sector. We work in agile, cross-functional teams to solve complex challenges with speed, autonomy, and innovation. The Role We are looking for a hands-on Data Product Owner to join our dedicated onshore team. We need someone with a start up mindset who lives and breathes the product, sits side-by-side with our developers, and is passionate about building exceptional backend, data-centric solutions. Key Responsibilities: Owning the end-to-end data lifecycle, from ingestion and transformation through to modelling, analysis, and visualisation. Converting disparate raw data into reliable, structured datasets ready for modelling, analysis, and visual reporting. Managing the product backlog, translating high-level business requirements into clear, actionable user stories. Leading a high-performing squad of engineers and analysts to ensure seamless...

Senior Solutions Architect (Shopify Expert) - Contractor Full job description About Avex Avex is a rapidly growing eCommerce agency that partners with merchants in the fashion, lifestyle and premium products space. From high-growth DTC brands to enterprise, we have partnered with companies such as: Khaite, Quip, KITH, Stoney Clover Lane, Love Shack Fancy, LVMH, Arizona Beverages, TAG Heuer, Hugo Boss, Enjoy Life, Mondelez, O'Neill, Serta Simmons Bedding and many others. We design, build and optimize eCommerce experiences on Shopify Plus for global brands.   Our Values BUILD our clients’ businesses, INSPIRE our employees to grow, CHALLEN GE the norm, and DELIVER on our commitments. We design and build digital commerce experiences that connect brands to people through creative, technology and culture. We believe that our work should not only produce amazing results for our clients but should also be fun and rewarding for our...

Toucanberry Tech is a UK-based boutique software consultancy delivering high-impact solutions to the financial sector. You’ll be joining a pivotal project, building a cutting-edge reinsurance platform from the ground up for a global reinsurer in Bermuda. ROLE: We are looking for a hungry and hands-on Product Owner to join our dedicated onshore team. This is not a project management role; we need a modern start up Product Owner who lives and breathes the product, sits side-by-side with our developers, and is passionate about building exceptional backend, data-centric solutions. Key Responsibilities: Own and manage the product backlog, translating high-level business requirements into clear, actionable user stories for the development team. Collaborate daily with a co-located, onshore squad of engineers, QAs, and designers to ensure seamless delivery and a shared understanding of the product vision. Define and analyse metrics to inform the success of the...

Toucanberry Tech is a UK-based boutique software consultancy delivering high-impact solutions to the financial sector. We work in agile, cross-functional teams to solve complex challenges with speed, autonomy, and innovation. The Role We are looking for a hands-on Data Product Owner to join our dedicated onshore team. We need someone with a start up mindset who lives and breathes the product, sits side-by-side with our developers, and is passionate about building exceptional backend, data-centric solutions. Key Responsibilities: Owning the end-to-end data lifecycle, from ingestion and transformation through to modelling, analysis, and visualisation. Converting disparate raw data into reliable, structured datasets ready for modelling, analysis, and visual reporting. Managing the product backlog, translating high-level business requirements into clear, actionable user stories. Leading a high-performing squad of engineers and analysts to ensure seamless delivery and...

About Avex Avex is a rapidly growing eCommerce agency that partners with merchants in the fashion, lifestyle and premium products space. From high-growth DTC brands to enterprise, we have partnered with companies such as: Khaite, Quip, KITH, Stoney Clover Lane, Love Shack Fancy, LVMH, Arizona Beverages, TAG Heuer, Hugo Boss, Enjoy Life, Mondelez, O'Neill, Serta Simmons Bedding and many others. We design, build and optimize eCommerce experiences on Shopify Plus for global brands.   Our Values BUILD our clients’ businesses, INSPIRE our employees to grow, CHALLEN GE the norm, and DELIVER on our commitments. We design and build digital commerce experiences that connect brands to people through creative, technology and culture. We believe that our work should not only produce amazing results for our clients but should also be fun and rewarding for our team. Avex believes in a strong work-life balance, not just churning out projects. The...

AI-Driven Test Automation Engineer (Cursor-First) Location : Fully Remote (accepting applications globally) Team: Tech Team Employment Type : Contract Company Description 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. We’re looking for a smart, curious AI-driven Test Automation Engineer who loves breaking systems, automating the boring stuff, and using AI as a daily co-pilot. This role is heavily Cursor-driven, focused on building and evolving automated tests using Cypress, while understanding both manual QA procedures and automation principles. You don’t need 10 years of QA experience: we care more about how you think, how fast you learn,...

Toucanberry Tech is a UK-based boutique software consultancy delivering high-impact solutions to the financial sector. You’ll be joining a pivotal project, building a cutting-edge reinsurance platform from the ground up for a global reinsurer in Bermuda. ROLE: We are looking for a hungry and hands-on Product Owner to join our dedicated onshore team. This is not a project management role; we need a modern start up Product Owner who lives and breathes the product, sits side-by-side with our developers, and is passionate about building exceptional backend, data-centric solutions. Key Responsibilities: Own and manage the product backlog, translating high-level business requirements into clear, actionable user stories for the development team. Collaborate daily with a co-located, onshore squad of engineers, QAs, and designers to ensure seamless delivery and a shared understanding of the product vision. Define and analyse metrics to inform the success of the...

Toucanberry Tech is a UK-based boutique software consultancy delivering high-impact solutions to the financial sector. We work in agile, cross-functional teams to solve complex challenges with speed, autonomy, and innovation. The Role We are looking for a hands-on Data Product Owner to join our dedicated onshore team. We need someone with a start up mindset who lives and breathes the product, sits side-by-side with our developers, and is passionate about building exceptional backend, data-centric solutions. Key Responsibilities: Owning the end-to-end data lifecycle, from ingestion and transformation through to modelling, analysis, and visualisation. Converting disparate raw data into reliable, structured datasets ready for modelling, analysis, and visual reporting. Managing the product backlog, translating high-level business requirements into clear, actionable user stories. Leading a high-performing squad of engineers and analysts to ensure seamless delivery and...

About Avex Avex is a rapidly growing eCommerce agency that partners with merchants in the fashion, lifestyle and premium products space. From high-growth DTC brands to enterprise, we have partnered with companies such as: Khaite, Quip, KITH, Stoney Clover Lane, Love Shack Fancy, LVMH, Arizona Beverages, TAG Heuer, Hugo Boss, Enjoy Life, Mondelez, O'Neill, Serta Simmons Bedding and many others. We design, build and optimize eCommerce experiences on Shopify Plus for global brands.   Our Values BUILD our clients’ businesses, INSPIRE our employees to grow, CHALLEN GE the norm, and DELIVER on our commitments. We design and build digital commerce experiences that connect brands to people through creative, technology and culture. We believe that our work should not only produce amazing results for our clients but should also be fun and rewarding for our team. Avex believes in a strong work-life balance, not just churning out projects. The...

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. We are looking for a Platform Engineer/SRE to own Tangible’s cloud infrastructure, system reliability, and core platform services. This role goes beyond traditional DevOps. You will be responsible for availability, scalability, and resilience, while also building and maintaining core internal services in Python and Node.js that enable product teams to move fast and safely. Tasks • Own and operate Tangible’s AWS infrastructure, ensuring high availability, reliability, and performance • Act as the primary owner of system...