Senior Platform Engineer - DevSecOps

LSEG (London Stock Exchange Group); New York (NY); Hybrid; USD 113,900 - 189,900; Full time

Job summary

LSEG is seeking a Senior Platform Engineer to drive secure, scalable cloud-native solutions across Azure and AWS. You will design APIs in Python, build modern front-ends, and deploy resilient systems in hybrid environments.

A strong focus on integrating Wiz CNAPP and AI-powered tooling will shape automation and developer productivity. The role requires DevSecOps proficiency, Terraform IaC, and containerization with Docker/Kubernetes, plus experience with React-based front-end work and

Qualifications

• 7+ years of professional software development with backend/cloud-native focus.
• 4+ years Python building scalable APIs, with automation and data processing.
• 2+ years Go (Golang) in microservices, concurrency, and performance.
• Experience with FastAPI, Flask, or Django backend frameworks.
• Strong REST, WebSockets, API versioning, and documentation practices.
• Frontend tech: React, Next.js, or Vue.js.
• SQL/NoSQL databases: PostgreSQL, MySQL, MongoDB, Redis.
• Cloud-native environments (Azure) incl AKS, Azure Functions, Azure Policy.
• Security concepts: CORS, CSRF, auth flows, rate-limiting.
• Experience with AI coding tools and APIs; software architecture knowledge.

Responsibilities

• Design and develop secure, scalable RESTful and GraphQL APIs using Python frameworks.
• Build responsive front-end apps with React/TypeScript.
• Implement CI/CD pipelines and IaC with Terraform; containerize with Docker/Kubernetes.
• Integrate AI/ML models into production, including monitoring and retraining.
• Collaborate with product, design, and DevOps to deliver production-grade software.
• Mentor developers and conduct code/design reviews; write tests for quality.

Skills

Python

Go (Golang)

REST API design

GraphQL

Frontend experience

Education

Bachelor's or Master's in CS/Software Engineering

Tools

Terraform

Docker

Kubernetes

React

TypeScript

Git

Job description

Summary of Business Unit/Function

The One Policy Engine is a unified policy platform for multi-cloud environments that keeps Infrastructure as Code (IaC) compliant from code to cloud. We apply policy enforcement early and consistently across the SDLC so security and compliance are built in from the start.

By integrating with platforms like Wiz CNAPP, we extend coverage beyond IaC to continuously assess cloud security posture. This integration helps identify misconfigurations, understand real runtime risk, and prioritize remediation‑preventing issues before they reach production.

About the Role

We are seeking a Senior Platform Engineer with deep expertise in Python, cloud-native application development, and hands‑on experience with Azure, AWS and DevSecOps. The ideal candidate is a versatile engineer who can design scalable APIs, build secure backend systems, develop modern front‑end interfaces, and deploy resilient cloud‑enabled solutions across hybrid environments.

You will play a key role in integrating AI‑powered tools into development workflows, driving automation, and improving developer productivity. A strong background with the Wiz Platform is critical, as this role involves deeply integrating Wiz's CNAPP capabilities into data‑intensive systems to deliver scalable, reliable, and high‑performance cloud security solutions. You will work closely with engineering and security teams to leverage Wiz insights, automate policy enforcement, and ensure secure‑by‑design cloud deployments.

This role also requires strong DevSecOps skills, including experience with CI/CD pipelines, infrastructure as code (IaC) using Terraform, and containerization technologies like Docker and Kubernetes. You'll help streamline deployment processes, improve system observability, and ensure high availability across cloud platforms.

Responsibilities

• Design and develop secure, scalable RESTful and GraphQL APIs using Python frameworks like FastAPI, Flask, or Django
• Implement design patterns for reusable, maintainable backend systems
• Design and optimize algorithms for processing, analytics, and data transformation
• Build responsive front‑end applications using React.js, TypeScript, or modern frameworks
• Implement and maintain CI/CD pipelines and infrastructure as code using Azure or AWS
• Integrate AI/ML models into production systems, including model serving, monitoring, and retraining workflows
• Ensure application security with OAuth2, JWT, rate‑limiting, and threat modeling
• Integrate AI‑assisted development and code generation tools such as GitHub Copilot, OpenAI APIs, or custom LLMs
• Collaborate closely with product managers, designers, and DevOps to build production‑grade software
• Write unit, integration, and performance tests to ensure code quality
• Mentor junior developers and conduct code/design reviews

Experience Requirements

• 7+ years of professional software development experience, with a strong focus on backend systems and cloud‑native applications.
• 4+ years of hands‑on experience in Python, including building scalable APIs, with deep understanding of language features and design patterns, automation scripts, and data processing pipelines.
• 2+ years of experience in Go (Golang), with exposure to microservices, concurrency patterns, and performance optimization.
• Proven experience in backend frameworks such as FastAPI, Flask, or Django.
• Strong grasp of REST, WebSockets, API versioning, and documentation best practices.
• Experience with frontend technologies like React, Next.js, or Vue.js.
• Familiarity with SQL and NoSQL databases such as PostgreSQL, MySQL, MongoDB, or Redis.
• Experience working in cloud‑native environments, preferably Microsoft Azure, including services like Azure Kubernetes Service (AKS), Azure Functions, and Azure Policy.
• Understanding of application security concepts: CORS, CSRF, authentication flows, rate‑limiting.
• Experience with using or integrating AI coding tools and APIs.
• Good understanding of software architecture, microservices, and event‑driven systems.

Qualifications Requirements

• Bachelor's or Master's degree in computer science, Software Engineering, or a related field.
• Strong understanding of software design principles, data structures, and algorithms.
• Proficiency in version control systems (e.g., Git) and agile development methodologies.
• Excellent problem‑solving skills and ability to work independently or in a team.
• Self‑driven, proactive, and able to work independently.
• Strong communication and collaboration in cross‑functional teams.

Preferred Skills

• Experience with GraphQL and API gateway technologies.
• Familiarity with observability tools (Datadog, Prometheus, ELK stack).
• Knowledge of async programming, task queues (Celery, RQ), and distributed systems.
• Experience building internal developer tools, portals, or CI/CD platforms.
• Exposure to DevSecOps practices and secure software supply chain tooling.
• Passion for clean, readable, and well‑documented code.
• Certifications such as Azure Developer Associate or Go Programming Language Certification.

Career Stage

Senior Associate

Compensation and Benefits

LSEG is committed to offering competitive Compensation and Benefits. The anticipated base salary for this position is $113,900 – $189,900. Please be aware base salary ranges may vary by geographic location, city and state. In addition to our offered base salary, this role is eligible for our Annual Incentive Plan (AIP/"bonus plan"). Target AIP rates will be commensurate with role level and posted career stage. Individual salary will be reflective of job related knowledge, skills and equivalent experience. LSEG roles (excluding internships and part‑time roles of less than 20 hours per week) are typically eligible for inclusion in our LSEG Benefits program, which includes offerings of: Annual Wellness Allowance, Paid time‑off, Medical, Dental, Vision, Flex Spending & Health Savings Options, Prescription Drug plan, 401(K) Savings Plan and Company match. LSEG's Benefits plan also includes basic life insurance, disability benefits, emergency backup dependent care, adoption assistance commuter assistance etc.

Equal Opportunity Employer Statement

We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone's race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs.