Senior Full Stack Engineer – AVP

Barclays•Jefferson, CO

2d•$120,000 - $175,000•Onsite

About The Position

Embark on a transformative journey as a Senior Full Stack Engineer – AVP. At Barclays, our vision is clear –to redefine the future of banking and help craft innovative solutions. In this role, you’ll be responsible for designing, building, and maintaining integrations across distributed systems. You’ll operate at the crossroads of backend engineering, API management, and event-driven design to deliver scalable, resilient solutions that power our platform. This position is ideal for someone who is pragmatic and product-focused, with ability to balance speed and accuracy. You recognize that integrations form the backbone of a platform, and you approach data consistency, failure handling, and observability with rigor. You’re also curious about emerging AI tools and continuously seek ways to work more efficiently and effectively, not just harder.

Requirements

Ample software engineering experience with Go as a primary language, building and maintaining production-grade systems
Hands-on experience with API gateway platforms (preferably Apigee), including proxy design, traffic management, and security policies
Practical experience with Apache Kafka in production, including consumer groups, offset management, and delivery semantics (at-least-once / exactly-once)
Solid data modeling expertise across RDBMS (e.g., PostgreSQL, MySQL—normalization, schema design, query optimization) and NoSQL systems, with understanding of tradeoffs across document, key-value, wide-column, and graph models
Proficiency in modern engineering practices and tools, including REST/gRPC API design, containerization (Docker, Kubernetes), cloud platforms (GCP, AWS, Azure), and prompt engineering with LLMs (e.g., OpenAI, Gemini, Claude)

Nice To Haves

Experience with schema-driven development using Protobuf, Avro, or JSON Schema
Familiarity with GraphQL and event streaming patterns beyond Kafka (e.g., Pub/Sub, Kinesis)
Exposure to observability best practices, including OpenTelemetry, distributed tracing, and structured logging at scale
Experience contributing to internal developer platforms or broader platform engineering programs

Responsibilities

Development and delivery of high-quality software solutions by using industry aligned programming languages, frameworks, and tools.
Ensuring that code is scalable, maintainable, and optimized for performance.
Cross-functional collaboration with product managers, designers, and other engineers to define software requirements, devise solution strategies, and ensure seamless integration and alignment with business objectives.
Collaboration with peers, participate in code reviews, and promote a culture of code quality and knowledge sharing.
Stay informed of industry technology trends and innovations and actively contribute to the organization’s technology communities to foster a culture of technical excellence and growth.
Adherence to secure coding practices to mitigate vulnerabilities, protect sensitive data, and ensure secure software solutions.
Implementation of effective unit testing practices to ensure proper code design, readability, and reliability.
Design, build, and maintain integrations across distributed systems.
Operate at the crossroads of backend engineering, API management, and event-driven design to deliver scalable, resilient solutions that power our platform.
Advise and influence decision making, contribute to policy development and take responsibility for operational effectiveness.
Collaborate closely with other functions/ business divisions.
Lead a team performing complex tasks, using well developed professional knowledge and skills to deliver on work that impacts the whole business function.
Set objectives and coach employees in pursuit of those objectives, appraisal of performance relative to objectives and determination of reward outcomes.
Lead collaborative assignments and guide team members through structured assignments, identify the need for the inclusion of other areas of specialisation to complete assignments.
Identify new directions for assignments and/ or projects, identifying a combination of cross functional methodologies or practices to meet required outcomes.
Consult on complex issues; providing advice to People Leaders to support the resolution of escalated issues.
Identify ways to mitigate risk and developing new policies/procedures in support of the control and governance agenda.
Take ownership for managing risk and strengthening controls in relation to the work done.
Perform work that is closely related to that of other areas, which requires understanding of how areas coordinate and contribute to the achievement of the objectives of the organisation sub-function.
Collaborate with other areas of work, for business aligned support areas to keep up to speed with business activity and the business strategy.
Engage in complex analysis of data from multiple sources of information, internal and external sources such as procedures and practises (in other areas, teams, companies, etc).to solve problems creatively and effectively.
Communicate complex information.
Influence or convince stakeholders to achieve outcomes.