Senior Integration Engineer

Hargreaves Lansdown

Senior Integration Engineer at Hargreaves Lansdown designing cloud native integrations and APIs on AWS. Responsible for data pipelines and driving integration strategies across the organization.

Posted 7/8/2026full-timeBristol • 🇬🇧 United KingdomSeniorWebsite

Tech Stack

Tools & technologies

AWSCloudSDLCTerraformTypeScript

About the role

Key responsibilities & impact

Engage closely with business stakeholders and cross‑functional technical teams to understand current and future integration needs
Help define and shape forward looking integration and API patterns that scale across the organisation
Translate business objectives into pragmatic integrations and data solutions, ensuring delivery is value‑led rather than purely technology‑driven
Influence integration architecture decisions by balancing strategic direction, delivery feasibility, and measurable business outcomes
Act as a trusted technical partner to the business, clearly articulating trade‑offs, benefits, and opportunities related to integration approaches
Lead the design and implementation of cloud‑native integration solutions using modern AWS services and patterns
Build and maintain secure, scalable, and reusable APIs that expose core business and data capabilities
Apply API‑first and contract‑driven design principles to support long‑term reusability and governance
Implement synchronous, asynchronous, and event‑driven integration patterns as appropriate
Own and lead the engineering delivery of core data hubs and integration‑led data pipelines
Design and implement reliable, high‑quality data pipelines aligned with HL’s SDLC and architectural principles
Collaborate with the Data Platform team to ensure solutions align with AWS and Snowflake standards
Contribute to the consolidation and distribution of key data domains into reusable data products
Design and implement automated testing strategies across integrations, APIs, and data pipelines
Drive towards a gold‑standard, fully automated testing suite , including unit, integration, data quality, and contract testing
Embed build, test, and deployment processes into CI/CD pipelines using DevOps best practices
Ensure solutions are observable and production‑ready through logging, monitoring, alerting, and resilience patterns
Work across integration, data, and platform teams to enable consistent engineering patterns and standards
Support HL’s transformation programmes by leading solutions for reliable, real‑time, and batch data movement
Influence integration and data engineering best practices across the team
Provide technical leadership and mentoring to other engineers where required

Requirements

What you’ll need

Strong experience designing and delivering solutions on AWS , including services such as: API Gateway, Lambda, EventBridge, SQS/SNS CloudWatch, IAM, VPC networking concepts
Infrastructure‑as‑Code using Terraform , including: Reusable modules Environment promotion and configuration management Secure, automated deployments
Hands‑on experience building APIs and integration services using TypeScript
Strong understanding of API‑first, RESTful, and event‑driven architectures
Experience with schema versioning, contract testing, and backward‑compatibility strategies
Experience building and operating data pipelines on cloud data platforms
Strong working knowledge of dbt for data transformations, testing, and documentation
Familiarity with Snowflake data modelling, optimisation, and cost‑aware design
Understanding of data quality, lineage, and observability concepts
CI/CD pipeline implementation for applications, infrastructure, and data workloads
Strong focus on test automation and engineering quality
Ability to operate production systems, including incident support and root‑cause analysis
Comfortable working across integration, data, and platform teams
Able to influence architecture and engineering standards
Willing to mentor and support less‑experienced engineers
Pragmatic, delivery‑focused mindset with strong ownership of outcomes

Benefits

Comp & perks

Discretionary annual bonus * and annual pay review
25 days * holiday plus bank holidays and 1-day additional Christmas closure
Option to purchase an additional 5 days holiday **
Flexible working options available, including hybrid working
Enhanced parental leave
Pension scheme up to 11% employer contribution
Income Protection and Life insurance (4 x salary core level of cover)
Private medical insurance*
Health care cash plans - including optical, dental, and out patient care
Health screening programme
Help@hand - confidential support including mental health counselling and remote GP
Wellhub - unlimited access to fitness provider s and wellness coach sessions
Variety of travel to work schemes with bike storage and shower facilities
Inhouse barista and deli serving subsidised coffee and sandwiches
Two paid volunteering days per year * dependant on role level
only available to select during our annual benefits window, in November each year

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Hard Skills & Tools

AWS ServicesAPI GatewayLambdaEventBridgeSQS/SNSTerraformTypeScriptDbtCI/CD Pipeline ImplementationData Quality Concepts

Soft Skills

Technical LeadershipMentoringPragmatic MindsetCollaborationInfluencing Standards