Senior Security Engineer jobs in Chesterfield

The Oracle Cloud Infrastructure (OCI) Offensive Security team provides OCI with the capabilities to ensure our systems and services meet the security objectives we communicate to customers. The Offensive Security group performs security assessments, vulnerability research, static and dynamic analysis research, penetration testing, red-teaming, and security tool development. We ensure the security...

Fire & Security PPM Engineer - Mon - Fri Excellent salary and benefits. Various locations across the UK. About us G4S is a global company operating across 120 countries, employing over 650,000 people across the world. You can find more about us here; https://www.g4s.com/en-gb We are at the forefront of the fire and security integrator market in the UK and have an enviable reputation for...

You will play an important part in that work, bringing real world engineering experience into a structured R&D environment.

You will have influence, responsibility, and the space to help define better ways of working.

You will be part of a company that is still young enough for your ideas to matter, but established enough to be investing seriously in equipment, people, and innovation.

You will be responsible for the entirety of the back end features of the products.

You will be in charge of building scalable backend services and awesome messaging queues.

You will be responsible for developing a Python-based back end platform that's handling 100,000+s of interactions daily.

You will shape how our engineers build, test, release, and monitor software, ensuring frictionless workflows while keeping ownership of business logic, test quality, and development practices firmly with the product engineering teams.

Job Description Senior Platform Engineer (Oracle Cloud Infrastructure - OCI) Duration: 6 Months Location: Manchester & remote (hybrid) Rate: £760 per day IR35 Status: Inside Start: ASAP Role Overview: We're currently recruiting for an experienced Senior Platform Engineer with excellent OCI experience (Oracle Cloud Infrastructure) for our higher education client. This role is to support and...

You will be part of a cross-disciplinary feature team, in addition to being a highly experienced member of our wider Lloyds engineering team delivering change. Your role as a GCP APIGEE specialist involves supporting teams with modern DevOps solutions, curating scalable GCP Cloud Products as IaaC, and building APIGEE/API solutions while modernising the APIGEE gateway.

Senior Software Developer Location: Derby – On-site (5 days a week) Salary: Up to £55,000 Contract: Permanent A Senior Software Developer is required to join a delivery-focused Service Team working for a global name, maintaining and evolving live software systems that support client solutions. This is a hands-on, client-facing role, ideal for someone with 3+ years’ commercial experience who...

You will be a key technical authority for Terraform across our Azure Data and AI platforms. What You’ll Be Doing In this role, you will: - Own and lead Terraform-based infrastructure design for Azure, ensuring scalability, security, and compliance by default. - Develop and maintain advanced Terraform modules, standards, and patterns used across multiple teams and environments.

Senior Data Engineer Job Title: Senior Data Engineer Salary Range: £80,000–£100,000 Location / Working model: London | Hybrid This is a critical technical position within a high-growth, forward-thinking organization that specializes in digital innovation. We require an experienced Senior Data Engineer to design, build, and maintain a robust, scalable, and high-performance system that is...

The Opportunity: We’re hiring a Sales Development Representative to support continued growth across critical infrastructure and industrial markets. This role sits at the front of the revenue engine and plays a key part in introducing our cyber-physical security platform to organisations operating complex IT, OT, and IoT environments. You’ll engage senior security, engineering, and operations...

Senior Full-Stack Engineer Fully Remote | UK Salary: Up to £100,000 Neulinx have partnered with a fast-growing B2B SaaS product company to hire an experienced Senior Full-Stack Engineer to join their engineering team at an important stage of growth. This is a hands-on senior role suited to someone who enjoys building high-quality product features, taking ownership of complex systems, and...

Role & What’s in it for the applicant and why would they apply?: This is a rare opportunity to join a public-sector organisation with genuine technical depth, running and evolving its own data centre and enterprise network estate. Rather than being siloed or boxed into BAU, you’ll work across network design, deployment, support, and continuous improvement, with real influence over direction and...

You will design, develop, and maintain our platform’s backend infrastructure, focusing on multi-tenant architectures, security, and efficient LLM integration. This role requires a strong understanding of Python web frameworks, cloud services (particularly AWS), and modern AI approaches including working with agentic architecture.

Senior Performance Engineer - UK Ready to Make a Real Impact? Join e-STORAGE! Who We Are Welcome to e-STORAGE, a proud member of the Canadian Solar Inc. (NASDAQ: CSIQ) family! We’re leading the way in designing, building, and integrating advanced battery energy storage systems for utility-scale projects. Our mission? To accelerate the world’s renewable energy transition and create a more...

Senior Full Stack Engineer | Up to £110K | One of the UK's fastest growing AI platforms | UK Remote | React/Node/TypeScript I am currently working with one of the fastest-scaling platforms in the creator economy which is a creator-first, AI-powered product that enables creators around the world to directly monetise their audiences. Every system you build will operate at serious global scale. 🎯...

You will work closely with frontend engineers, product managers, and the CTO to design and evolve a highly scalable, asynchronous, cloud-native platform. This is a hands-on senior engineering role with real technical ownership, influence over architecture, and scope to mentor others.

You will support the delivery of full-scale projects and plant builds on behalf on numerous clients globally, you will be instrumental in the full lifecycle of these projects and be experienced in the following; Required experience: - Degree qualified Chemical Engineer.

You will support in reverse engineering and deep understanding of vulnerabilities, including impact analysis and automation.

You must relish the challenge of findings critical vulnerabilities in complex software binaries through automation and manual practices. Creativity is highly valued; being able to find novel vulnerabilities is essential in this role.

You will be responsible for the entirety of the back end features of the products.

You will be in charge of building scalable backend services and awesome messaging queues.

You will be responsible for developing a Python-based back end platform that's handling 100,000+s of interactions daily.