AWS Senior Platform Engineer

AWS Senior Platform Engineer - FinOps - Appvia - ACTIVE Security Clearance required.

Contract: Permanent - Full-time

Location: London, UK - Hybrid (~1+ day per week in office)

Package: £75, , % Bonus + 10% Shares + Benefits (see more below)

About Us

Appvia is a cloud-native consultancy and platform provider helping organisations build, secure and scale in the cloud, with offerings such as self-service platforms, governance, cost optimisation and AI accelerators.

Partnering with public cloud providers, we work across the public and private sector to help customers build modern cloud platforms, embed platform engineering best practices, improve governance, and optimise costs to unlock developer velocity and accelerate delivery practices that make cloud a competitive advantage.

About the role

We are urgently seeking a Senior AWS Platform Engineer to lead a critical project on one of our major public sector FinOps-focused programmes. This is a hands-on engineering and consulting position where you will support a customer in optimising their AWS estate, maturing their cloud financial governance, and enabling cost-efficient, scalable platform operations.

You will work closely with client teams to build automation, enhance observability, improve cloud cost controls, and embed FinOps principles across engineering and platform functions. This role requires both deep AWS engineering skills and strong awareness of cloud economics within a regulated environment.

Interview process - 4 stage

• Discovery conversation with our Talent Acquisition team.
• A paired Technical Assessment with Engineering team.
• Technical Interview deep dive with Practice Leadership.
• Competency focused Final Interview with Engineering Leadership.

Important

You must hold active SC.

About you

You are an experienced AWS engineer with strong platform engineering skills and exposure to FinOps, cloud cost optimisation, and financial governance practices. You enjoy solving complex cloud challenges, improving efficiency, and working closely with customers in highly regulated environments.

You should have experience with:

• Continuous integration and deployment practices
• Collaborating with engineers and non-technical stakeholders
• Applying AWS and DevOps best practices
• Supporting project planning and delivery
• Strong communication and team motivation skills

Responsibilities

• Collaborate with clients to assess their current infrastructure, identify opportunities for improvement, and develop tailored Cloud and DevOps strategies.
• Design and implement scalable, resilient, and secure cloud-native solutions leveraging industry best practices and cutting-edge technologies.
• Developing pipelines to deploy code all the way to production with Terraform, using GitHub Actions
• Managing new demand for platform and application onboarding
• Assisting application development teams to architect their applications to be cloud native, or helping them transform existing applications to cloud native where possible.
• Implementing monitoring and alerting
• Improving security posture of applications being migrated
• Creating secure deployment patterns and templates/modules for application development teams to reuse.
• Gathering requirements for building and maintaining a centralised platform for product teams to iterate on their applications in AWS.
• Setting best practices and policies, especially around microservice architecture
• Developing, maintaining and operating complex operational tooling (e.g. Kubernetes, Opensearch, Prometheus, Grafana, Github or equivalent alternative technologies)
• Assessing customer technical capabilities and upskilling for reduced friction and increased platform adoption.
• Enhancing operational reliability and scalability of existing products
• POC'ing new ideas and products, and balancing trade offs between technical, analytical and product needs.
• Streamlining operational tasks through engineering and automation
• Improving operational visibility around core products such as tracking technologies, improved metrics etc.
• Implementing integrations between components to improve the teams way of working
• Improving knowledge amongst the team through code reviews, documentation, technical guidance and mentoring
• Reducing the number of DevOps resources in projects by enabling developers to be more self-service

Skills

• FinOps & Cloud Cost Optimisation: Strong capability in analysing cloud spend, implementing cost-efficient architectures, driving tagging and budgeting standards, and using AWS cost tooling (Cost Explorer, CUR/Athena, Budgets, Forecasting) to optimise usage and improve financial governance.
• Platform Engineering: Proficiency in designing and implementing scalable, resilient, and secure cloud platforms.
• Automation: Experience with infrastructure-as-code (IaC) practices, automation tools (e.g., Terraform, Ansible) and scripting languages (e.g. Python, Ruby).
• Container Orchestration: Knowledge of container orchestration platforms (e.g., Kubernetes) and their managed counterparts (e.g., EKS, AKS, GKE).
• Public Cloud Expertise: Understanding of cloud services, architecture, and best practices in one or more major public cloud providers (AWS, Azure, GCP).
• DevOps Practices: Strong experience with CI/CD pipelines, version control systems, and containerisation technologies (e.g., Docker).
• Networking: Expertise in designing and managing secure, scalable AWS network architectures (VPC, VPN, Load Balancers, Transit Gateway).

Experience

• Project Leadership: Demonstrated experience delivering cloud migration, optimisation, or transformation projects.
• Client-Facing Experience: Proven track record of engaging with clients, understanding their requirements, and delivering solutions that exceed expectations.
• Team Collaboration: Ability to work effectively in cross-functional teams, communicate technical concepts to non-technical stakeholders, and drive consensus.
• Continuous Learning: Commitment to staying abreast of industry trends, participating in professional development activities, and obtaining relevant certifications.

Qualifications

Certification in relevant cloud technologies (AWS, Azure, GCP) at an associate level is highly desirable, e.g.:

• AWS Certified: Solutions Architect Associate
• AWS Certified: Solutions Architect Professional

Certification in Kubernetes and FinOps administration is desirable:

• Certified Kubernetes Administrator (CKA)
• Certified Kubernetes Security Specialist (CKSS)
• FinOps Certified Practitioner

Why join Appvia?

We are a self-funded, London based startup; providing businesses with a fast and secure way to deploy containerised applications into the cloud.

We are on a mission to enable organisations to make cloud-based software delivery simple and efficient, whilst having the insights into costs, security and cadence. As a company that holds customers at the heart of everything we do, we are looking for candidates that want to make a real change to how Dev and Ops is working in the industry.

With us our customers, like the UK's Home Office & Bank of England, are harnessing cloud-native technologies, limiting the challenges of infrastructure management and rapidly delivering digital products.

What's on offer?

 Work-life balance

• Flexible working with core hours of 10-4pm because we know life happens outside of work
• Hybrid working - only one compulsory office day per month
• 25 days' holiday a year, plus bank holidays
• An additional day off for your birthday
• Enhanced maternity and paternity to full pay
• Workplace Nursery Benefit to help working parents

 For your well-being

• Full Private Healthcare cover for you with partners and children covered 50%
• Death in Service
• Cycle to Work scheme
• Electric Car Scheme
• Pension plus a salary sacrifice option for even greater savings
• Employee Assistance Programme
• Free hygiene products available in the London office

 Mental health support

• Free therapy through AXA
• Access to the Headspace App
• Trained Mental Health First Aiders

Other fun perks

• Learning budget of £1,000 a year
• Your own MacBook Pro while you work at Appvia
• Dog friendly office
• Wear what makes you comfortable
• Free snacks in the office
• Pool table & ping pong table
• Regular team socials, board game nights, industry meetups and more

But don't just take our word for it, you can check out what our Appvians say about us on Glassdoor and by following us on LinkedIn, Twitter and TikTok.

We are proud to be an equal opportunities employer and actively encourage, respect, and recognise diversity of thought and background throughout the business. All applicants will be considered for employment without attention to age, ethnicity, religion, sex, sexual orientation, gender identity, family or parental status, national origin, or veteran, neurodiversity, and disability status.

Note: While all roles are active and approved at the time of posting, the dynamic nature of our start-up means some applications may be processed to pipeline talent for future opportunities rather than current openings. We will strive to keep you informed of any changes to the status of your application.