Gravitee Logo

Gravitee

Senior Software Engineer

Posted One Month Ago
Be an Early Applicant
Hybrid
London, Greater London, England, GBR
Senior level
Hybrid
London, Greater London, England, GBR
Senior level
Build and own product features for Gravitee’s Agent Gateway and LLM control layer. Responsibilities include developing A2A and multi-LLM capabilities, translating customer feedback into technical plans, analyzing usage data, prototyping, shipping iterative solutions, and collaborating across product, design, and engineering teams. The role requires backend development in Java or C#, distributed systems and API expertise, authentication and authorization knowledge, and daily use of AI-assisted development tools.
The summary above was generated by AI

Recognized in Gartner’s inaugural 2026 Magic Quadrant™ for AI Agent Management Platforms and named a Leader in the Gartner® Magic Quadrant™ for API Management for three consecutive years, Gravitee brings AI agents and the APIs they rely on under one unified control plane.

We deliver the industry’s most advanced platform for Any API, Any Event, and Any AI Agent, trusted by global leaders like Michelin, Roche, and Blue Yonder.

Why join us?

  • The Mission: We are the first to bridge traditional API Management with the new frontier of AI Agent Security

  • The Momentum: A high-growth Leader - combining market credibility with startup speed

  • The DNA: We hire people who Hold Nothing Back - passionate builders who want to redefine digital infrastructure

Don’t just watch the AI revolution. Build the infrastructure that controls and secures it.

The Role

We’re hiring a Senior Software Engineer to join us as a Product Engineer. You’ll help build how enterprises secure, govern and control AI agents. That covers two areas: the Agent Gateway, which governs agent-to-agent (A2A) communication, and the LLM control layer, which gives enterprises one central point of control over every LLM their agents call.

Our Product Engineers don’t wait for specs. You’ll own one area of the Agent Gateway or LLM control roadmap, chosen to fit your strengths and interests, and take it from idea to production yourself. You’ll follow the market closely (new protocols, new standards, what competitors are doing), turn ideas into PRDs and working prototypes, and make the case for them to product leadership. Once an idea is approved, you build it. There’s no handoff in the middle.

What You’ll Be Doing

At Gravitee, impact isn’t abstract,  it’s visible. In this role, you will:

  • Own a meaningful slice of the Agents or LLM control roadmap, from customer conversations through shipping and iterating on the result.

  • Build features for the Agent Gateway and A2A protocol support, or for multi-LLM routing, cost control, and reliability – depending on your pod – working closely with Product Management and Design.

  • Use AI-assisted development tools as a core part of your workflow to move faster from idea to shipped feature.

  • Dig into usage data and customer feedback to help decide what to build next, not just how to build it.

  • Prototype quickly, test with real users, and be willing to change course when something isn't landing.

  • Partner with Staff Engineers and other pods where the Agents surface touches LLM control, MCP, or the core API gateway – and vice versa.

Your impact will be visible, measurable, and felt by every enterprise trusting agents with real access to their systems, and every customer routing traffic through Gravitee's LLM control layer.

Essential Skills
  • 4+ years of software engineering experience, ideally in a product-facing or full-stack role.

  • Current backend experience in Java

  • Solid understanding of authentication/authorization flows (OAuth2/OIDC or similar) and how identity and permissions propagate through a distributed system

  • Hands-on experience with AI coding assistants (Cursor, Claude Code, GitHub Copilot or similar) as part of daily work.

  • Strong fundamentals in API design and distributed systems.

  • A bias toward shipping and iterating over building the theoretically perfect solution.

Desired Skills
  • Familiarity with the A2A protocol or agent-to-agent communication patterns.

  • Experience with API gateways or API management platforms.

  • Exposure to LLM-based products or agentic workflows.

  • Experience integrating multiple LLM providers into a single product surface.

  • Experience with cost or usage governance for AI and LLM systems.

  • Familiarity with the Model Context Protocol (MCP) or similar orchestration standards.

  • Experience working in a fast-moving, ambiguous product environment.

  • Experience with containerized deployment and CI/CD pipelines (Docker, Helm, Kubernetes)

  • Familiarity with NoSQL/document databases (e.g. MongoDB)

Who Thrives at Gravitee

At Gravitee, our growth is powered by people who bring passion to what they build, act with professionalism in how they work, and hold nothing back in their commitment to doing things well.

You’ll do well here if you:

  • Care deeply about quality, clarity, and impact

  • Are curious, adaptable, and excited by emerging technologies like AI

  • Take ownership and follow through

  • Value collaboration, openness, and continuous improvement

Bonus points if you’ve worked with APIs, cloud-native platforms, AI-enabled systems, or open source, but curiosity matters most.

Life at Gravitee

At Gravitee, we invest in humans, not just roles.

You’ll get:

  • Competitive medical coverage 

  • Pension / 401k program options

  • Stock options - you build it, you own it

  • 25 days holiday + in-country national holidays

  • 3 mental health days + wellness allowance

  • Your birthday off 🎉

  • Professional development budget to fuel your growth

  • Hybrid work culture with hubs across regions

  • Quarterly team events + annual offsite at an exciting location

  • A meaningful, progressive, global company culture that is as fun as it is hardworking

  • Endless growth opportunities

At Gravitee, we believe diverse perspectives make better products and stronger teams.

At Gravitee, no employee or applicant will be treated less favorably on the grounds of sex, marital status, race, color, nationality or ethnic or national origin, disability, gender, sexual orientation, gender identity, age, pregnancy or maternity, marital or civil partner status, or religion or belief.

By clicking submit below, you consent to allow Gravitee to store and process the personal information submitted above.

HQ

Gravitee London, England Office

London, United Kingdom

Similar Jobs

2 Days Ago
Hybrid
London, Greater London, England, GBR
Senior level
Senior level
Healthtech • Software • Biotech • Pharmaceutical
Build and own scalable healthcare data applications, including Snowflake data pipelines, data-sharing solutions, and customer-facing retrieval interfaces. Develop Python backends and React frontends, modernize infrastructure with Terraform and Docker, and implement CI/CD and observability. Collaborate with oncologists, product leaders, and data scientists to translate clinical and regulatory requirements into reliable, compliant systems. Mentor engineers and help transform oncology data into actionable insights.
Top Skills: AirflowAmazon Ec2Amazon EmrAmazon S3AWSClaude CodeCursorDatadogDockerGitlab Ci/CdMetaplaneParquetPrefectPysparkPythonReactSnowflakeSpaceliftTerraform
2 Days Ago
Hybrid
London, Greater London, England, GBR
Senior level
Senior level
Fintech • Mobile • Payments • Software • Financial Services
Build backend and data governance systems for Wise’s risk assessment platform. Responsibilities include data quality monitoring, data contracts, lineage tracking, continuous control assurance, drift detection, audit trails, explainability tooling, and scalable integration with the Risk API. The role requires designing reliable, high-throughput distributed systems and collaborating with Product, Risk API, and Financial Crime teams.
Top Skills: KafkaNosql DatabasesSQL
2 Days Ago
Hybrid
London, Greater London, England, GBR
Senior level
Senior level
Fintech • Mobile • Payments • Software • Financial Services
Own the technical roadmap and delivery of scalable backend systems for Wise’s KYC and onboarding platform. Design APIs, microservices, and integrations with risk and compliance systems; improve reliability, security, scalability, and technical debt. Lead complex cross-team initiatives, make data-driven technical decisions, optimize database systems, mentor engineers, and promote clean, testable, high-performance code and rigorous engineering practices.
Top Skills: APIsArtificial IntelligenceKafkaMachine LearningMicroservicesNon-Relational DatabasesRabbitMQRelational Databases

What you need to know about the London Tech Scene

London isn't just a hub for established businesses; it's also a nursery for innovation. Boasting one of the most recognized fintech ecosystems in Europe, attracting billions in investments each year, London's success has made it a go-to destination for startups looking to make their mark. Top U.K. companies like Hoptin, Moneybox and Marshmallow have already made the city their base — yet fintech is just the beginning. From healthtech to renewable energy to cybersecurity and beyond, the city's startups are breaking new ground across a range of industries.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account