55 senior engineer jobs found

Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract We’re hiring multiple Senior Go Backend Engineers (contractors) to join a large-scale public sector transformation programme delivered by a highly regarded product consultancy. This work is focused on moving critical systems away from a legacy C# ecosystem into a modern, scalable, cloud-native architecture. You’ll be joining cross-functional teams responsible for building resilient backend services that support high-impact, user-facing products used at national scale. This is a 6-month initial contract, ideal for engineers who enjoy working on meaningful systems, solving complex migration challenges, and delivering production-grade backend services, fast. The Role | Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day |...

Contract role: Senior Software Engineer: Up to £475 per day Outside IR35: 6 months rolling: Hybrid Monthly (London) An innovative digital consultancy is looking for experienced Senior Software Engineers to design and architect scalable, high-performance systems for a cutting-edge platform being developed for a major client. In this role, you'll tackle complex technical challenges as part of an agile team following Scrum methodologies. As a Senior Software Engineer, you'll set the standard for code quality and best practices, actively contributing to code reviews and collaborative programming sessions with your team. As a Senior Software Engineer, you will be experienced with: C#, .Netcore JavaScript, React.js AWS or Azure Key information: Up to £475 per day Outside IR35 6 months rolling Hybrid Monthly (London) This is an exciting opportunity for a Senior Software Engineer to join a high-performing development team. Contract role: Senior Software...

Senior Platform Engineer - Remote - Outside IR35 - 6 months As Senior Platform Engineer (Integration) in Squad A, you will be the in-house technical authority for all API and integration work across critical BSS/OSS ecosystem. You will own the build, maintenance, and evolution of integration flows connecting Salesforce Communications Cloud, NetAdmin, Nokia/Adtran, billing systems, and new services provisioning pipelines - bringing rigour, repeatability, and platform ownership to an environment that has historically relied on external managed services. This is not a Back Office development role. You will be a senior contributor to the CI/CD pipeline, a guardian of integration quality across squad boundaries, working closely with the Head of OSS/BSS, the Software Solutions Architect, and cross-squad peers to establish the internal integration capability Experience Must Have Skills Minimum 3 years of hands-on API and integration development experience in a...

Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract We’re hiring multiple Senior Go Backend Engineers (contractors) to join a large-scale public sector transformation programme delivered by a highly regarded product consultancy. This work is focused on moving critical systems away from a legacy C# ecosystem into a modern, scalable, cloud-native architecture. You’ll be joining cross-functional teams responsible for building resilient backend services that support high-impact, user-facing products used at national scale. This is a 6-month initial contract, ideal for engineers who enjoy working on meaningful systems, solving complex migration challenges, and delivering production-grade backend services, fast. The Role | Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day |...

As Household Business is currently undergoing a significant transformation and is seeking a Senior Enterprise WordPress Engineer to join on a contract basis. This is a high-impact role working closely with a cross-functional team, where you will be expected to proactively drive delivery and make a genuine, measurable impact through high-quality execution. Duration - 3-6 month inital Rate - £500PD (outside IR35) Location - Remote What You’ll Do Develop, enhance, and maintain enterprise-scale WordPress platforms, delivering new features and functionality to a high standard Build and maintain shared WordPress plugins, microservices, and JavaScript applications that support multiple brands Create custom Gutenberg blocks, APIs, and integrations aligned with modern WordPress best practices Monitor, troubleshoot, and improve performance across Core Web Vitals, response times, and database queries Work closely with cross-functional teams (engineering,...

Contract Senior Data Engineer - £500 - £600 per day - Outside IR35 - Python/Snowflake/AWS Role: Contract Senior Data Engineer Rate: £500 - £600 per day Determination: Outside IR35 Interview Process: 2x Call Technology: SQL/Python/DBT/AWS/Snowflake/Airflow In office requirement: 1 day per week Duration: 6 months Burns Sheehan have been supporting the build of a new team and we are adding to this with another Contract Senior Data Engineer. As a Contract Senior Data Engineer, you will support on core Data Engineering capabilities as well as modernising the Data stack and supporting a migration. Working alongside their Director of Data & Principal Data Engineer, you will be a key component. If this Contract Data Engineer sounds like you, please apply now for immediate consideration. Contract Senior Data Engineer - £500 - £600 per day - Outside IR35 - Python/Snowflake/AWS

Senior AWS Engineer - Up to £500 per day 6 month initial contract Fully Remote - UK Based Outside IR35 Role Overview We are seeking an experienced Senior AWS Engineer to join our Professional Services delivery team on a fixed term basis to support the delivery of a major AWS migration and separation programme for an enterprise customer. This role will form part of a multi-disciplinary delivery team working alongside Solution Architects, Project Managers, and customer technical stakeholders to build, migrate, and deploy AWS infrastructure and application services as part of a structured separation of an existing hybrid estate into a new AWS Organisation. The successful candidate will play a hands-on role in delivering landing zone implementation, networking build activities, server migration, and application platform deployment using Infrastructure as Code (IaC) approaches. This is a customer-facing delivery role within a professional services consultancy...

Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract We’re hiring multiple Senior Go Backend Engineers (contractors) to join a large-scale public sector transformation programme delivered by a highly regarded product consultancy. This work is focused on moving critical systems away from a legacy C# ecosystem into a modern, scalable, cloud-native architecture. You’ll be joining cross-functional teams responsible for building resilient backend services that support high-impact, user-facing products used at national scale. This is a 6-month initial contract, ideal for engineers who enjoy working on meaningful systems, solving complex migration challenges, and delivering production-grade backend services, fast. The Role | Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day |...

Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract We’re hiring multiple Senior Go Backend Engineers (contractors) to join a large-scale public sector transformation programme delivered by a highly regarded product consultancy. This work is focused on moving critical systems away from a legacy C# ecosystem into a modern, scalable, cloud-native architecture. You’ll be joining cross-functional teams responsible for building resilient backend services that support high-impact, user-facing products used at national scale. This is a 6-month initial contract, ideal for engineers who enjoy working on meaningful systems, solving complex migration challenges, and delivering production-grade backend services, fast. The Role | Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day |...

Job Title: Senior AWS DevOps Engineer (Contract) Location: Remote, must be based in the UK Rate: £500 - £550 per day (Outside IR35) Duration: 6 months A leading organisation within the technology sector is seeking an experienced AWS DevOps Engineer to lead on the delivery of scalable, secure cloud infrastructure. This contract role focuses on building and optimising AWS environments, enabling robust serverless and containerised applications, and supporting data-driven platforms. AWS DevOps Engineer Responsibilities: Deliver Infrastructure as Code using Terraform, including modules, state management, and remote backends Lead on AWS cloud architecture across services such as EC2, S3, RDS, IAM, VPC, ECS, and Lambda Develop and maintain serverless and event-driven architectures Build and optimise CI/CD pipelines using Git-based workflows Ensure AWS security best practices (IAM, least privilege, secrets management) are implemented Drive cost optimisation and...

Senior Data Engineer - Fabric London Hybrid - Outside IR35 We're hiring on behalf of our business we've partnered with for over 8 years, supporting them in building and scaling high-performing technology and data teams. They are now seeking an experienced Senior Data Engineer with strong Microsoft Fabric and Power BI expertise to play a key role in delivering enterprise-scale data solutions. This position will be instrumental in supporting a major global ERP transformation programme , ensuring high-quality reporting, robust data pipelines and scalable data warehouse architecture are in place to drive accurate stakeholder insight and business decision-making across international operations. Key Responsibilities Implement data migration strategies using Microsoft Fabric for reporting and stakeholder consumption Design and build data pipelines using Fabric Pipelines, Azure Data Factory, Notebooks and SSIS Model data from multiple sources into structured outputs...

Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract We’re hiring multiple Senior Go Backend Engineers (contractors) to join a large-scale public sector transformation programme delivered by a highly regarded product consultancy. This work is focused on moving critical systems away from a legacy C# ecosystem into a modern, scalable, cloud-native architecture. You’ll be joining cross-functional teams responsible for building resilient backend services that support high-impact, user-facing products used at national scale. This is a 6-month initial contract, ideal for engineers who enjoy working on meaningful systems, solving complex migration challenges, and delivering production-grade backend services, fast. The Role | Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day |...

Senior Data Engineer - Fabric London Hybrid - Outside IR35 We're hiring on behalf of our business we've partnered with for over 8 years, supporting them in building and scaling high-performing technology and data teams. They are now seeking an experienced Senior Data Engineer with strong Microsoft Fabric and Power BI expertise to play a key role in delivering enterprise-scale data solutions. This position will be instrumental in supporting a major global ERP transformation programme , ensuring high-quality reporting, robust data pipelines and scalable data warehouse architecture are in place to drive accurate stakeholder insight and business decision-making across international operations. Key Responsibilities Implement data migration strategies using Microsoft Fabric for reporting and stakeholder consumption Design and build data pipelines using Fabric Pipelines, Azure Data Factory, Notebooks and SSIS Model data from multiple sources into structured outputs...

Senior Data Centre Network Engineer - Remote - 12 Months - Outside IR35 We are seeking a Senior Data Centre Network Engineer to lead the design, build, and evolution of high-performance, scalable data centre networks. This role is focused on modern spine-leaf architectures, SDN, and automation, supporting large-scale, low-latency environments including cloud platforms, AI workloads, and distributed systems. Key Responsibilities Design and implement spine-leaf data centre network architectures for high availability and scalability Lead the adoption and optimisation of Software-Defined Networking (SDN) solutions Architect low-latency, high-throughput networks to support AI, cloud, and data-intensive workloads Define and enforce network standards, blueprints, and best practices Own Layer 2/Layer 3 design, including routing, switching, and segmentation strategies Design and optimise east-west traffic flows within large-scale DC environments Collaborate with...

Contract role: Senior Software Engineer: Up to £475 per day Outside IR35: 6 months rolling: Hybrid Monthly (London) An innovative digital consultancy is looking for experienced Senior Software Engineers to design and architect scalable, high-performance systems for a cutting-edge platform being developed for a major client. In this role, you'll tackle complex technical challenges as part of an agile team following Scrum methodologies. As a Senior Software Engineer, you'll set the standard for code quality and best practices, actively contributing to code reviews and collaborative programming sessions with your team. As a Senior Software Engineer, you will be experienced with: C#, .Netcore JavaScript, React.js AWS or Azure Key information: Up to £475 per day Outside IR35 6 months rolling Hybrid Monthly (London) This is an exciting opportunity for a Senior Software Engineer to join a high-performing development team. Contract role: Senior Software...

Job Title: Senior AWS DevOps Engineer (Contract) Location: Remote, must be based in the UK Rate: £500 - £550 per day (Outside IR35) Duration: 6 months A leading organisation within the technology sector is seeking an experienced AWS DevOps Engineer to lead on the delivery of scalable, secure cloud infrastructure. This contract role focuses on building and optimising AWS environments, enabling robust serverless and containerised applications, and supporting data-driven platforms. AWS DevOps Engineer Responsibilities: Deliver Infrastructure as Code using Terraform, including modules, state management, and remote backends Lead on AWS cloud architecture across services such as EC2, S3, RDS, IAM, VPC, ECS, and Lambda Develop and maintain serverless and event-driven architectures Build and optimise CI/CD pipelines using Git-based workflows Ensure AWS security best practices (IAM, least privilege, secrets management) are implemented Drive cost optimisation and...

Senior Platform Engineer - Remote - Outside IR35 - 6 Months As Senior Platform Engineer (Integration) in Squad A, you will be the in-house technical authority for all API and integration work across LightSpeed's critical BSS/OSS ecosystem. You will own the build, maintenance, and evolution of integration flows connecting Salesforce Communications Cloud, NetAdmin, Nokia/Adtran, billing systems, and new services provisioning pipelines - bringing rigour, repeatability, and platform ownership to an environment that has historically relied on external managed services. This is not a back-office development role. You will be a senior contributor to the CI/CD pipeline, a guardian of integration quality across squad boundaries, and a key player in LightSpeed's journey to Engineering Maturity - working closely with the Head of OSS/BSS, the Software Solutions Architect, and cross-squad peers to establish the internal integration capability LightSpeed needs to scale. Experience...

Senior Data Engineer - PySpark, GCP We're recruiting for a Senior Data Engineer with strong PySpark skills, to join a growing team in building out a modern Lakehouse platform in GCP. This is a hands-on role for someone who can take ownership, work independently, work iteratively and delivery quickly. Key skills and experience: Strong experience as a Data Engineer in Cloud Environments (ideally GCP but not essentially) Hands on experience with PySpark and SQL Experience building data lake/lakehouse platforms Strong understanding of distributed data processing (Spark) Experience with Airflow or similar orchestration tools Ability to design and deliver pipelines end-to-end, independently Nice to have: Strong GCP experience Terraform/Infrastructure-as-Code Experience with data quality tools (Great Expectations, Soda) Exposure to data catalog/governance tools Experience of working towards/setting up AI, Agentic Workflows etc What you'll be doing:...

Senior Python Engineer (Microservices/Event-Driven) - Contract £550/day | Outside IR35 4 Months | Watford (HYBRID) We're hiring a Senior Python Engineer with proven time-series experience to work on a Real Time data platform. This is a Back End engineering role focused on event-driven systems and time-series data. It is not a data science or analytics position. What You'll Be Doing Building API-driven Back End services in Python Developing event-driven microservices using Azure Service Bus Working on high-throughput ingestion and processing systems Deploying services via Azure Functions or Docker on AKS Core Requirements (Non-Negotiable) Strong Python Back End engineering experience Demonstrable experience: Designing data models for time-based querying Optimising queries and handling large datasets Working within event-driven architectures Tech Environment Python Azure (Functions, AKS, Storage) Azure Service Bus ADX/Kusto or InfluxDB...

Senior Time-Series Engineer (Python or .NET) - Contract £550/day Hybrid (Watford) 4 Months Outside IR35 We're supporting a technology-led organisation building high-throughput, event-driven systems operating at scale. They are looking for 2 Senior Engineers (1 Python, 1 .NET/C#) to work on a time-series focused platform powering Real Time data ingestion, storage, and analytics. This is not a standard Back End role. If you haven't actually worked hands-on with time-series data in production, this won't be the right fit. What You'll Be Doing Building API-driven Back End services handling high transactional workloads Designing and optimising time-series data pipelines (ingestion storage query) Working with event-driven architectures using Azure Service Bus Modelling time-series datasets for performance and scalability Implementing retention policies, partitioning strategies, and downsampling Optimising query performance across large-scale datasets Deploying...