Lead Platform Engineer

Addition Solutions; Greater London, City of Edinburgh; Hybrid; GBP 129,000 - 138,000; Full time

Benefits offered by this job

Hybrid work model

Onsite 1 day/week

Job summary

Addition Solutions in London or Edinburgh is seeking a Lead Platform Engineer for a 6-month contract. You will design and build AWS platform capabilities, with focus on federated identity and Bedrock integration, in a regulated environment. Hybrid work, with 1 day onsite weekly.

The role requires senior AWS engineering, platform design expertise, and leadership to guide the wider engineering team in a complex cloud setting.

Qualifications

• Senior AWS engineer with hands-on cloud experience and platform design skills.
• Experience in federated identity solutions and complex integrations.
• Leadership experience and stakeholder communication; AWS SA-level certification helpful.

Responsibilities

• Design and build reliable AWS platform capabilities, including federated identity.
• Assess current platform and prioritise key technical work.
• Consolidate integrations into core AWS technologies.
• Translate requirements into implementable, auditable solutions with tech teams.
• Support the use of Amazon Bedrock and Bedrock AgentCore.
• Ensure solutions meet risk, assurance and design controls.
• Make informed technical decisions in a complex cloud environment.
• Establish scalable foundation for future growth and wider adoption.
• Provide technical leadership to the engineering team.

Skills

AWS cloud engineering

Platform design

Federated identity

Complex integrations

Bedrock

Bedrock AgentCore

Leadership

Stakeholder management

AWS Solution Architect cert

Tools

Amazon Bedrock

Bedrock AgentCore

Job description

Lead Platform Engineer

Start Date: ASAP

Contract | £700-£750 per day

Duration: 6 Months

Location: London or Edinburgh | 1 day per week onsite

We're partnering with a leading organisation to appoint two experienced Lead Platform Engineers on an initial 6-month contract.

This is an exciting opportunity for senior AWS specialists to help build and strengthen a cloud platform supporting advanced AI capabilities.

You’ll play a key role in developing the underlying AWS environment, with an initial focus on federated identity and consolidating existing integrations into core AWS technologies, including Amazon Bedrock and Bedrock AgentCore.

Operating within a highly regulated environment, you'll combine hands-on engineering expertise with strong technical judgement to ensure the platform is scalable, reliable and aligned with strict risk, assurance and design controls.

The Opportunity

As Lead Platform Engineer, you'll work closely with solution architecture and technical teams to assess the existing platform, identify priorities and translate requirements into robust, implementable solutions.

You'll be joining at an important stage of the platform’s development, helping establish strong technical foundations that can support its continued growth and wider adoption.

This is a hands-on role suited to a senior, lead or principal-level engineer who is comfortable navigating complex environments, working independently and making sound technical decisions.

Key Responsibilities

• Designing and building reliable AWS platform capabilities, including federated identity.
• Assessing the current platform and helping prioritise key technical work.
• Consolidating existing integrations into core AWS technologies.
• Working with solution architects and technical Business Analysts to translate requirements into implementable and auditable solutions.
• Supporting the integration and use of Amazon Bedrock and Bedrock AgentCore.
• Ensuring solutions meet appropriate risk, assurance and design controls.
• Making informed technical decisions across a complex and evolving cloud environment.
• Helping establish a scalable foundation to support the future growth and wider use of the platform.
• Providing technical leadership and supporting the wider engineering team.

About You

You'll be a highly experienced AWS engineer operating at senior, lead or principal level, with the technical depth and judgement to take ownership within a complex platform environment.

• Strong hands-on AWS cloud engineering and platform design experience.
• Experience designing and implementing federated identity solutions.
• Strong experience working with complex systems and integrations.
• Familiarity with Amazon Bedrock and Bedrock AgentCore.
• Experience working within regulated environments with risk, assurance and design controls.
• The ability to quickly understand an unfamiliar technical estate and identify priorities.
• Strong problem-solving skills and the ability to make sound technical decisions independently.
• Previous team leadership or technical leadership experience.
• Strong stakeholder management and communication skills.
• AWS Solution Architect-level certification or equivalent practical capability would be highly advantageous.

Why Apply?

This is an excellent opportunity to take a leading role in the development of a sophisticated AWS platform, working with modern cloud and AI technologies within a complex enterprise environment.

In return, you'll benefit from:

• £700-£750 per day.
• Initial 6-month contract.
• Hybrid working with just 1 day per week onsite in London or Edinburgh.
• The opportunity to work with AWS, Amazon Bedrock and emerging AI technologies.
• A senior technical position with significant influence over platform design and development.
• The opportunity to help establish a scalable platform foundation with long-term strategic importance.

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.