Senior Backend Engineer

Job Description

We're looking for a Senior Backend Engineer to join our team. You'll design and build the microservices, APIs, and integrations that sit at the heart of our security platform working closely with security analysts, product managers, and fellow engineers to ship reliable, observable, high-quality software. You'll also help shape how our team uses AI coding tools to ship faster without compromising on quality, security, or maintainability.

Responsibilities

Design, build, and operate production-grade Python microservices using FastAPI (and Django where appropriate), applying clean architecture, domain-driven design, and async patterns to deliver resilient APIs.
Build event-driven workflows , designing for idempotency, retries, dead-letter handling, and back-pressure across services.
Own services end-to-end on AWS (EKS, RDS/Postgre

SQL, messaging, IAM, S3 for example), provisioned with Terraform and deployed via Git Hub Actions and FluxCD (Git Ops).
Collaborate with frontend engineers working in an Angular microfront ends architecture designing API contracts that are clean, versioned, and a pleasure to consume.
Write and maintain test suites unit, integration, contract, and end-to-end with Playwright and treat tests, observability, and CI signal as first-class deliverables, not afterthoughts.
Instrument services for observability (structured logs, metrics, traces) so we can detect, diagnose, and resolve issues quickly in production.
Participate in architecture discussions, code reviews, threat modelling raising the bar for the whole team.
Work within an Agile delivery model contributing to refinement, estimation, retrospectives, and pragmatic technical decisions.

About SecurityHQ

Security

HQ is a global cybersecurity company. Our specialist teams design, engineer and manage solutions that do three things:
Promote clarity and trust in a complex world. Build momentum around improving security posture. And increase the value of cybersecurity investment within organizations. Free from limitations, and inclusive of all requirements, we focus on defending today, while mitigating the risks of tomorrow. And into the future. Our solutions are tailored to our customers and their unique context. Around the clock, 365 days per year, our customers are never alone.

Security

HQ – We're focused on engineering cybersecurity, by design.

Job Reference Number

IN079

Essential Skills

5+ years of backend engineering experience with Python as a primary language, shipping and operating services in production.
Strong production experience with FastAPI (or Django) async patterns, dependency injection, Pydantic, API design, versioning, and authn/authz.
Solid background in distributed / microservice architectures service boundaries, idempotency, retries, eventual consistency, and message-driven patterns.
Strong Postgre

SQL / RDS skills: schema design, indexing, query optimisation, and safe migrations under load.
Hands-on experience with AWS and containerised workloads on EKS / Kubernetes.

Experience with Git Hub Actions and a Git Ops deployment model (we use FluxCD).
Strong fundamentals across testing, observability, application security, and documentation.
Excellent written communication design docs, RFCs, PR descriptions, and incident write-ups.

Optional Skills

Background in cybersecurity, MSSP, SOC tooling, or SaaS security products.
Familiarity with Angular and microfront ends enough to collaborate effectively on contracts and integration with frontend engineers.
Experience designing agentic workflows for triage, enrichment, or analyst decision support in a security context.
Have authored AGENTS.md / CLAUDE.md, custom agent skills, or MCP servers to make AI tooling reliable across a team.
Day-to-day use of AI coding assistants (Claude Code, Copilot, Cursor, or equivalent) on production code with a clear point of view on how to use them well and where to draw the line.
Familiarity with security-domain integrations SIEM, SOAR, EDR, or Service Now SIR.
General understanding of data warehousing, ETL pipelines, automation workflows (Apache Airflow, n8n, etc.)
Comfortable writing Terraform for real infrastructure (modules, state, drift, code review of IaC).
AWS certifications (Solutions Architect Associate or Professional).

Education Requirements & Experience

Education:

MS or bachelor's degree in engineering, computer science, or a related
Candidates should have at least 5+ years of experience