Bid Ops Optimization Engineer (Maternity Leave Cover)
Investigate and resolve Header Bidding issues, optimize publisher performance through data-driven fixes, and communicate technical findings and business impact to internal teams and publishers.
Valarian: A New Era of Sovereign Intelligence
Valarian is a dual use technology company building critical tools to safeguard the future in an era of evolving global security challenges. Backed by a Series A funding round of $50m led by NEA, we are rethinking security beyond traditional military domains to address asymmetric threats that impact our technological advantage, economic strength, and democratic institutions. We provide the control infrastructure that allows government and regulated enterprise to put frontier-class AI to work safely.
We are bringing a frontier AI experience inside secure boundaries for the first time. Our technology supports mission critical workflows across government, healthcare, and enterprise, including:
Scaling open-weight models without external inference endpoints.
Putting frontier class AI to work across organisations through partnerships with other leading AI startups such as Perplexity.
Increasing operational resiliency for air gapped, on prem, and cloud based systems.
Securing intellectual property and maintaining auditability for high stakes enterprise environments.
Facilitating secure information flow during disaster response, M&A due diligence, and privileged legal communications.
We’ve only scratched the surface. Built in Britain by veterans of the Ministry of Defence, British Forces, Darktrace, and elite engineering backgrounds, we are driven by a shared mission to safeguard western democracy . Whether you join our London HQ or our wider global organisation, you’ll be part of a collaborative, high performing team creating the cutting edge software and infrastructure that defines the frontier of enterprise AI.
The Role
As a Solutions Engineer, you will deploy, extend, and integrate our secure Kubernetes platform (ACRA) into real-world workflows. You aren't just writing backend services in Go—you are partnering directly with end-users to understand their operational constraints, adapting our containerized workloads to their infrastructure, and feeding crucial feedback back into the core platform team.
You will write production Go, build React frontend components, configure microservices, and orchestrate Kubernetes workloads while collaborating across frontend, core backend, infrastructure, and AI teams to deliver client outcomes.
What you’ll do:
What we are looking for:
Go & Backend Engineering: Strong hands-on experience building microservices, REST/gRPC APIs, or event-driven backend systems in Go.
Kubernetes Application Logic & Tech Stack: Deep familiarity with Docker, K8s manifests, Helm charts, GitOps workflows (Argo/Flux), relational databases (RDBs), KV Caches, and Event Buses, focusing on building applications for Kubernetes.
Product & Customer Intuition: Demonstrated experience interfacing with external clients, solutions architects, or cross-functional teams to solve real operational problems.
System Design & Security Boundaries: Clear understanding of workload isolation, secrets management, identity-aware communication, and failure domain boundaries.
Pragmatic Ownership: Comfort operating in ambiguous, fast-moving environments where debugging spans client applications, networking layers, and platform code.
Our benefits are designed to ensure our employees feel taken care of and are proud to be a part of the Valarian team. We are committed to consistently enhancing our benefit package, taking into account the overall well-being and needs of our teammates. Here are the key benefits accessible to all employees at Valarian Technologies:
Equity – because you have the right to own what you’re building
A competitive salary – because we value your unique skills
Employer pension contributions – because you deserve a secure future
Private health insurance - because your health is important to us
Hybrid work setup – because everyone has different needs
Gym memberships - because staying active fuels productivity
Rewarding company retreats and meetups that respect your work/life balance – because we love getting to know each other
Our culture is built on inclusivity, compassion and flexibility – we want everyone to be empowered to achieve their goals at Valarian.
The work we do is vital, but so are the connections that make it happen. We thrive on the shared energy, spontaneous conversations, and mutual trust built when we spend time together. We operate on an office first hybrid model, regularly gathering in our London office to support one another and collaborate.
Investigate and resolve Header Bidding issues, optimize publisher performance through data-driven fixes, and communicate technical findings and business impact to internal teams and publishers.
Consult with customers on delivery pipeline modernization and software supply chain security, lead technical sales engagements, and deliver implementations while shaping customer architectures and product solutions.
Consult with customers on delivery pipeline modernization and software supply chain security, lead technical sales engagements and implementations, and shape customer architectures in partnership with Engineering.
Lead customer-facing deployments of AI infrastructure and frontier models, building and validating production software, experiments, and reusable tools for semiconductor and inference engineering workflows.
Own technical outcomes for strategic customer engagements, from discovery and rapid prototyping on customer data through production adoption, while translating validated needs into reusable solutions and product improvements.