481 senior developer jobs found

Senior Developer - £400PD - Remote We are seeking a skilled and collaborative Senior Developer to join our engineering team. In this role, you will contribute to the design, development, and maintenance of high-quality backend services and infrastructure platforms. You will work across a modern technology stack and help shape best practices for delivery, automation, and open ways of working. Key Responsibilities Backend Development: Develop and maintain backend services, with Python as the preferred language for new systems. Provide support for services built in Java and .NET, ensuring seamless integration and continued reliability. Enhance and maintain existing solutions using Oracle SQL PL. Database & Data Services: Work with relational databases including Oracle, SQL Server, and Postgres. Optimise data models, queries, and stored procedures to improve performance and maintainability. Infrastructure & DevOps: Build, deploy, and manage applications using cloud...

Senior Developer - Healthcare Projects Location: UK Remote Rate: £(Apply online only) Inside IR35 Duration: 6 months Start: January (BPSS clearance required before start; SC likely to follow) Fully Remote Need NHS Experience We're seeking Senior Developers to join a high-profile healthcare programme delivering modern, secure, and scalable digital services. Key Responsibilities & Tech Stack: Work with the Healthcare Frontend Toolkit and Design System to build accessible, user-focused interfaces. Develop back-end services primarily in Python, while supporting existing systems in Java and .NET. Maintain and enhance legacy services using Oracle SQL PL. Implement robust CI/CD pipelines and infrastructure using AWS, Azure, SQL Server, Postgres, GitHub, Azure DevOps, Linux, Docker, and Kubernetes. Follow Test Driven Development (TDD) practices - write automated tests before coding. Ensure open working practices with transparent codebases, documentation, design histories,...

Senior Software Developers - 6-Month Contract - Inside IR35 £400 per day | Remote/UK-Based | NHS Experience Essential | BPSS Eligible We're seeking three Senior Software Developers to join a high-performing team delivering modern digital services across the NHS. You will help build, support, and evolve critical platforms using modern engineering practices, test-driven development, and open, transparent delivery. This is a 6-month Inside IR35 contract, with strong potential for extension. Candidates must be UK-based, BPSS eligible, and have previous NHS experience. Role Overview You will work within a collaborative, multidisciplinary environment to design, build, and maintain high-quality digital services. The role involves contributing to both new and existing systems, supporting multiple languages and platforms, and applying strong DevOps, TDD, and modern engineering practice throughout. Key Responsibilities Develop new services using Python while supporting existing...

I am currently working with a London-based investment bank who are actively seeking a Senior .Net Developer with strong investment banking experience to work on the development and maintenance of a business-critical platform in the Treasury Pricing space. What you'll need to succeed: Extensive .Net/C# development experience within financial services. Strong experience working on Treasury Pricing systems. Extensive Azure apps and functions experience - mandatory. Strong stakeholder management skills within a front/middle office environment. What you'll get in return: Up to £700pd Umbrella. Initial 6-month contract with extensions. London-based hybrid working. What you need to do now: If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career. Hays Specialist Recruitment Limited...

Salesforce Developer (Full Stack) 📍 Location: UK / Remote  Outside of IR35 Contract - £500 to £600 🕓 Type: Full-time We are looking for a Full Stack Salesforce Developer to help build scalable solutions that power our Lead-to-Order processes. In this role, you’ll work closely with our Technical and Solution Architects to design secure, reusable components using Apex, Lightning Web Components, APIs, and event-driven architecture. What you’ll be doing Develop Apex classes, triggers, Lightning Web Components (LWCs), and Flow Invocable Actions Build integrations using MuleSoft, REST APIs, and Platform Events Work on Lead-to-Order flows including pricing logic, order activation and fulfilment Deliver secure, performant, and compliant code within our governance framework Contribute to CI/CD pipelines with GitHub or Copado Participate in design workshops, code reviews & deployment checks Translate user stories and functional requirements into technical solutionsWhat we’re looking...

Our client is looking for an experienced Senior C++ Software Engineer to help grow and enhance our PTP software platform. The candidate will work on strategic enhancements to the platform as well as on client implementation projects. The PTP Platform is a leading-edge, cloud-based Securities Processing solution that provides trade lifecycle processing for a wide range of global financial institutions. What you will need: · Extensive commercial software development experience using C++ · SQL experience · Unix/Linux experience · Relevant degree in a numeric discipline, or equivalent work experience · Excellent written and spoken English Added bonus if you have: · Oracle Experience · Experience of event-driven distributed messaging (e.g. Kafka) · Experience of financial markets and the trade lifecycle beneficial · C# and any GUI development experience Please send your CV now for more details, this is an URGENT role

Java Developer Location: Dublin, hybrid working model Term: 12 months, excellent day rate Java Developer wanted to help design and build high-throughput systems for a well-known name in Dublin’s tech scene. You’ll be part of a modern engineering environment offering excellent hybrid flexibility (with some on-site collaboration) and the freedom to deliver clean, scalable services. This is a great opportunity for a Java developer seeking a long-term contracting role within an organisation that’s heavily investing in modern technologies and innovative approaches. What you’ll bring: 5+ years Java development experience, comfortable working across Spring / Spring Boot microservices etc. Decent hands on skills with Angular, at heart you’re a backend dev but your comfortable doing Angular work 20-30% of the time. Solid Agile habits, pragmatic delivery mindset Curiosity about AI-driven efficiencies and a knack for proposing smarter ways to build Interested? Ping Ross Irwin at The...

Java Developer / Full Stack Developer – Contract Location: Limerick Length: 6+ months Rate: Strong daily rates available We’re on the lookout for a Java Developer to join an ambitious team building next-generation digital platforms. You’ll get to work across modern backend services and polished web interfaces, helping shape features that deliver slick & reliable user experiences at scale. What You’ll Do • Take ownership of core services, building out new functionality and optimising existing systems • Partner with product and engineering leads to influence design decisions and technical direction • Deliver fast, responsive web apps using modern frameworks • Engineer APIs and integrations that underpin high-traffic applications • Drive quality through smart automation, testing, and performance tuning What You’ll Bring • Strong track record with Java/Spring Boot and microservices in a cloud environment • Familiarity with JavaScript/TypeScript skills with exposure to...

Senior Full Stack Quantitative Developer Certain Advantage are hiring for a Senior Full Stack Quantitative Developer based in London on a hybrid basis. This role is on an initial contract till the end of the year with a potential to be extended for a further 6 months. Key Responsibilities Design, develop, and maintain secure, scalable, and maintainable applications using Python and Azure cloud technologies for commodities trading solutions. Leverage strong proficiency in Python, including use of numerical and scientific libraries such as Pandas, NumPy, SciPy etc. Utilize a second strongly typed programming language (e.g., C#, C++, Rust, or Java) as needed. Implement application architecture and DevOps best practices, including “Infrastructure as code”, Kubernetes, Docker, and automation testing frameworks. Apply software design patterns to ensure robust, flexible, and future-proof solutions. Collaborate with quant developers, analysts, and traders to translate business and...

2x Senior .NET Developers - Public Health Job Title: .NET Developer Location: 1x/Month in Leeds Day Rate: £500/day Inside IR35 Duration: Until March 2026 NHS or Central Government experience is ESSENTIAL Brio Digital are supporting a HealthTech consultancy who are currently looking for 2x .NET Software Engineers. You'll be working on a national-level programme supporting an ongoing digital transformation project. What You'll Do Build and maintain robust APIs and web applications using .NET and React Collaborate with cross-functional teams to deliver modern, Azure-hosted solutions Develop clean, testable, and maintainable code across the full stack Integrate with complex healthcare data systems and APIs Support continuous improvement across architecture, tooling, and CI/CD pipelines Participate in design reviews and mentoring within an agile delivery team What You'll Bring Solid C#/.NET Core experience in production systems Proficiency with React and TypeScript Strong...

The Company Our client is a prestigious global developer with an exceptional track record of delivering luxury and award-winning flagship destinations. At present they hold a £50bn project portfolio with a further £3bn secured for the next 10 years. They have delivered an array of high-profile projects within the retail, commercial and residential sectors across the UK. The Project As a highly experienced Retail Project Manager, you will be based in a live shopping centre overseeing a range of retail refurbishments, maintenance, and fit-out projects valued up to £5 million. Your responsibilities will include leading and coordinating project teams and subcontractors, liaising with tenants, creating detailed plans, monitoring budgets and following schedules to ensure efficient store openings, closures, and renovations. You will manage tenant interactions, ensuring compliance with lease agreements and timely completion of fit-outs, so that stores are ready to trade as scheduled....

Kenna Recruitment is currently on the lookout for a Senior Site Manager. My client is one of the leading developers that operate across the UK and after a successfully project win, they are now looking for a Senior Site Manager to work on this scheme on a contract basis, for the right person this can lead to a permanent opportunity. They are now seeking a Senior Site Manager to work on this scheme managing multiple packages on a prestigious development in Kent. You will need to have a, CSCS, SMSTS, and First Aid at Work and have extensive experience working on large residential schemes with either a main contractor or developer. If you are keen on knowing any further information on the above, please get in touch with Harold at Kenna Recruitment

Freelance Senior Quantity Surveyor – London 📍 London 🏢 Residential & Mixed-Use Developer 💼 Contract / Freelance 💰 Competitive Day Rate (Outside IR35) + Long-Term Pipeline A well-established and forward-thinking Surrey-based property developer is seeking an experienced and commercially driven Freelance Senior Quantity Surveyor to support multiple residential and mixed-use schemes across London and the South East. This contract role offers the opportunity to take responsibility for end-to-end commercial management while working flexibly within a dynamic development team. With a strong pipeline of current and upcoming schemes, there is potential for long-term, ongoing work. The Role As a Freelance Senior Quantity Surveyor, you will oversee the commercial and financial delivery of several live projects, working alongside the in-house development, design, and delivery teams. You will lead cost planning, procurement, contract administration, and commercial reporting to ensure...

Are you an experienced Site Manager with a background in volume housebuilding? Do you have expertise in timber frame construction? We are currently recruiting for an experienced Site Manager on behalf of one of our prestigious clients, who are delivering a high-volume timber frame housing project in Sittingbourne, Kent. This is a fantastic opportunity to work with an established developer and take ownership of site operations on a busy and exciting residential development. Key Responsibilities: * Site Operations Management: Oversee the day-to-day management of the site, ensuring the project runs smoothly and efficiently. * Team Leadership & Coordination: Lead, motivate, and supervise site staff, including contractors and subcontractors, to ensure high performance and compliance with project specifications. * Quality Assurance: Maintain the highest standards of quality, ensuring work is completed to specification and in accordance with building...

Elvet Recruitment are recruiting a Freelance Groundworks Site Manager on behalf of a long-standing regional groundworks & civil engineering contractor to manage a project in the Cleckheaton area. The initial project is a £10m+ residential groundworks package which is relatively new to site. It includes 200+ new plotworks to DPC as well as associated groundworks and full roads & sewers package. This contractor are a large business with a £200m+ turnover, they have tried and tested management systems in place and a large senior team. They offer a skilled Site Manager the opportunity to concentrate on running their own site. The Site Manager will be needed for an ongoing duration - potentially as long as 2 years with the expected work on this site. Duties: * Daily running of civils on site - as sub-contractor to housing developer * Ordering materials & managing supply chain * Writing RAMS & site documentation * Daily site diaries * Planning work - 2,3 and 4...

Qliksense Developer Certain Advantage are hiring for a Qliksense Developer based in London. This role is on an initial contract till the end of the year basis and is office based The company: We’re working with a business that’s on a strong growth trajectory, backed by ambitious plans. With a commitment to innovation and excellence, they are poised to make a significant impact in the industry. The role As a Senior Analytics engineer you are a subject matter expert, who designs & builds analytics solutions and mentors junior engineers. You are also the key person to convert the Vison and Data and Analytics Strategies into IT solutions and deliver them. Design, build and implement POCs, prototypes and full-fledged UX solutions and strategies Communicate with key stakeholders to drive clarification of requirements and to promote UX designs and solutions Expert knowledge in QlikSense & Qlik Cloud Analytics to deliver complex, fast moving datasets to high value trading...

TeacherActive is working closely with a supportive and inclusive primary school in Putney as they look to appoint a compassionate and skilled Autism Specialist Teaching Assistant. This is a fantastic opportunity for someone with experience supporting children with Autism (ASC) who is passionate about helping pupils thrive both academically and emotionally. This role requires someone who has had previous experience with SEND children and is going to be proactive and hands-on with work. In this rewarding role, you will work closely with pupils on a one-to-one or small-group basis, helping them access the curriculum, develop communication skills, regulate emotions, and build confidence in a safe, structured environment. The school is known for its nurturing ethos, strong SEN support team, and commitment to personalised learning. Key responsibilities: Providing 1:1 support for pupils with Autism Supporting learning, communication and social development Implementing EHCP targets...

People Policy and Relations Manager Contract: Temporary - 12-month Maternity Leave Cover Hours: Full Time, 37.5 hours per week Location: Pontypridd, with hybrid working opportunities Salary: £41,064 per annum Overview We are working with a large higher-education provider in South Wales who are seeking an experienced and proactive People Policy and Relations Manager to support the development of a positive, inclusive, and resolution-focused workplace culture during a period of maternity leave cover. This role plays a key part in shaping and delivering effective employee relations strategies, ensuring that policies and procedures remain legally compliant, values-driven, and aligned with organisational ethos. Key Responsibilities Lead on the development, review, and implementation of people, policies and procedures that reflect best practice and employment legislation. Monitor upcoming legislative changes (new or amended legislation) and ensure the organisation remains fully...

Freelance Planner - Leeds & Yorkshire Region An experienced Freelance Planner is required to support ongoing construction project based in the Leeds area. Key Responsibilities: Develop, update, and maintain detailed project programmes using Asta Powerproject / Primavera P6. Support a live project team with build methodologies, sequencing, and logistics planning. Monitor progress on-site, identify delays or risks early, and advise on mitigation strategies. Produce progress reports, revised programmes, and critical path analyses for internal and client-facing meetings. Work with project managers, design teams, and commercial leads to ensure the programme aligns with cost, procurement, and delivery targets. Ensure planning processes are fully compliant with contractual requirements, including extensions of time and delay analysis when required. Requirements: Proven experience as a Planner or Senior Planner with a Tier 1 or reputable Main Contractor. Strong working...

Job Specification: Lead Environmental Consultant Location: Knutsford Division: Consultancy Rate: Outside IR35 Overview A leading engineering and environmental consultancy is seeking an experienced Lead Environmental Consultant to oversee and deliver high-quality environmental advisory services across industries transitioning to net-zero. The role focuses heavily on regulatory compliance, environmental assessments, and supporting emerging low-carbon technologies, including renewable energy, power-to-liquid processes and hydrogen. This is a senior position offering the opportunity to shape environmental strategy, build team capability, expand client relationships and influence the development of innovative low-carbon technologies. Role Purpose The Lead Environmental Consultant will manage a portfolio of environmental consultancy projects, providing regulatory guidance, coordinating assessment activities, and ensuring clients meet complex environmental requirements. The role...