AI Interim Partner in London

Is this for you? This is a specific kind of opportunity. It suits experienced contractors and independent consultants who have delivered real engineering outcomes in client-facing environments and want to do more of that work without the overhead of building a pipeline themselves. It is not for everyone. Before reading further, consider the following:

• You have genuine hands-on experience in software engineering, DevOps, or modernisation.
• You are comfortable engaging directly with senior client stakeholders such as CTOs, CIOs, and Heads of Engineering.
• You can walk into an unfamiliar technical environment and quickly form a clear, credible view.
• You are outcome-driven. You measure success by what the client actually achieves.
• You are not looking for a managed employment arrangement. You want a partnership.

If that does not describe you, this will not be the right fit. If it does, read on.

About Thebes Group: Thebes Group is a UK-based IBM Silver Partner technology consultancy operating across regulated industries, including Financial Services, the NHS, and the Public Sector. We focus on engineering, DevOps, and modernisation programmes for mid-to-large organisations. We work with clients who have real, complex technical problems. We do not sell generic solutions. We engage deeply, shape practical approaches, and deliver measurable outcomes. We are building a network of technical partners to extend that capability. This is that network.

The Role: You will provide technical leadership and advisory support across qualified client engagements, working alongside Thebes Account Executives. Your involvement spans two structured stages:

• Stage 1 Fact Finding (30 minutes): Join a qualified client call alongside the Account Executive. Validate whether the stated problem is the actual problem. Identify risks, constraints, and blockers early. Help the team decide whether to proceed to full discovery.
• Stage 2 Discovery (60 minutes): Lead a structured technical conversation with the client. Assess the codebase, architecture, delivery pipelines, and existing processes. Identify bottlenecks, inefficiencies, and areas of functional or technical debt. Provide clear, honest, and actionable direction.

Key Responsibilities:

• Client Engagement: Support Account Executives on qualified, vetted opportunities. You will not be cold-calling or generating your own leads. Engage with senior stakeholders at the level required to shape outcomes, not just take briefs. Provide technical clarity that builds confidence and trust.
• Solution Development: Translate client challenges into solutions that are practical and actually deliverable. Contribute to proposal development where your technical view strengthens the commercial case. Be honest when a proposed approach will not work. That credibility is part of what we offer.
• Delivery: Deliver or guide implementation where the engagement extends into hands-on work. Improve engineering environments, DevOps practices, and release management processes. Support adoption of better ways of working, with a focus on lasting change rather than short-term fixes.

Technical Focus Areas:

• Code optimisation and refactoring, with particular focus on .NET and Java environments.
• DevOps practices and CI/CD pipeline design and improvement.
• Deployment and release management.
• Reduction of technical and functional debt.

Experience and Skills:

• Essential: Proven, hands-on experience in software engineering (.NET, Java, or equivalent). Practical knowledge of DevOps and CI/CD pipelines in production environments. Strong client-facing communication. You can explain complex technical positions clearly to non-technical stakeholders. The ability to assess an unfamiliar technical environment quickly and form a credible view.
• Desirable: Experience contributing to discovery or pre-sales engagements. Comfort working alongside commercial teams and understanding the link between technical decisions and business outcomes. Familiarity with regulated industry environments such as Financial Services or the NHS.

The Commercial Model: This is a partnership arrangement, not a staffing engagement. The model reflects that.

• Time and Materials: Advisory and delivery work is remunerated on a time and materials basis at agreed rates.
• Revenue Share: You participate commercially in the outcomes you help create. This applies to opportunities you contribute to, whether through discovery, shaping, or technical validation. Deals where your involvement was a material factor in winning. Engagements where you lead or support delivery. Specific rates and share percentages are agreed individually based on the nature of the engagement.

What We Each Bring:

• Thebes provides qualified, vetted client opportunities. You engage from Stage 1 onward. Client access and commercial structure. Account Executive support throughout the engagement.
• You provide technical expertise and the credibility that comes with real delivery experience. Advisory capability that helps clients understand their situation clearly. Delivery support where the engagement warrants it.

How Success Is Measured:

• Quality and usefulness of your contribution at Stages 1 and 2.
• Client confidence following discovery engagements.
• Practical, deliverable solutions rather than technically impressive ones that cannot be executed.
• Positive client relationships and outcomes.
• Commercial contribution over time.