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Backend Systems Architect
Backend Systems ArchitectTestZeus • Bengaluru, Republic Of India, IN
Backend Systems Architect

Backend Systems Architect

TestZeus • Bengaluru, Republic Of India, IN
6 days ago
Job description

Lead Backend Engineer ( Python, Go)

Location : Bangalore (Office)

Experience : 4-7 years (Senior-level)

Role Type : Full-time (Tech Lead)

About TestZeus

TestZeus is pioneering the next generation of autonomous software testing with AI agents. We’re the team behind Hercules, the world’s first open-source testing agent. We combine large language models, multi-agent orchestration, and retrieval pipelines to deliver zero-maintenance testing for web and API workloads. We are seeking a Lead Backend Engineer who can own the engine that powers Hercules : distributed microservices, event-driven pipelines, and reliable APIs. You’ll lead a small backend / DevOps pod, balance Python agility with Go performance, and ensure our platform is robust, observable, and scalable.

Key Responsibilities

1. Backend Architecture & Microservices

  • Design and build production microservices in Go (high-throughput workloads) and Python (FastAPI / Flask for developer-friendly APIs).
  • Define and maintain gRPC / REST contracts , authentication / authorization flows, and rate-limiting strategies.
  • Own database migrations and schema evolution for services in production.

2. Eventing & Data Layer

  • Implement and operate Kafka or RabbitMQ pipelines for job queues, ingestion, and telemetry.
  • Design and optimise PostgreSQL schemas, indexes, and queries for performance and reliability.
  • Use Redis (or similar) for caching, rate limiting, and ephemeral data patterns.

    • 3. DevOps, Reliability & Observability

  • Containerise services using Docker and orchestrate them using Kubernetes (Helm / Kustomize).
  • Set up and maintain CI / CD pipelines (GitHub Actions or similar) and infrastructure-as-code (Terraform).
  • Establish observability : metrics, logs, and traces via Prometheus, Grafana, ELK / EFK or equivalents.
  • Define SLOs, alerts, and incident playbooks , and lead post-mortems in a blameless manner.

    • 4. Scalability, Security & Cost

  • Plan and implement horizontal scaling , blue-green / rolling deployments, and capacity management.
  • Manage secrets, TLS, and secure configurations , working with cloud-native security best practices.
  • Conduct cost, performance, and capacity reviews to keep the platform efficient as it grows.

    • 5. AI / Agent Platform Integration

  • Expose and consume backend endpoints for LLM evaluation, vector search (Pinecone / Weaviate / mem0), and feedback loops .
  • Collaborate closely with AI engineers to integrate agents with backend services and event pipelines.
  • Ensure backend systems are agent-ready : idempotent, observable, and robust to retries and failures.

    • 6. Leadership, Mentorship & Collaboration

  • Lead 2–3 backend / DevOps engineers through design docs, code reviews, and technical decision-making.
  • Drive post-mortems and architectural discussions, fostering a blameless, learning-first culture .
  • Partner with frontend and AI teams to deliver user-visible features end-to-end.
  • Communicate clearly with founders and product stakeholders on trade-offs, timelines, and risks.

    • Qualifications & Skills Education

  • B.E. / B.Tech / M.S. in Computer Science or a related field, or equivalent practical experience.

    • Experience

  • 4–7 years of total experience, strongly back-end-centric .
  • Experience in leading projects or mentoring engineers (formal or informal leadership).

    • Must-Have Skills

  • Backend Engineering
  • 4–5 years building production microservices in Go and Python (FastAPI / Flask or similar).
  • Proven delivery of at least one high-concurrency, production-facing service .
  • Event & Data Stack
  • Hands-on experience with Kafka or RabbitMQ for queues and event pipelines.
  • Strong PostgreSQL design skills (schemas, indexing, performance tuning).
  • Practical usage of Redis (or equivalent) for caching and transient data.
  • DevOps & Reliability
  • Solid experience with Kubernetes & Docker for deploying and managing services.
  • Ownership of CI / CD pipelines (GitHub Actions or similar).
  • Familiarity with monitoring & observability tools such as Prometheus, Grafana, ELK / EFK.

    • Nice-to-Have

  • Experience integrating with LLM services or vector databases (Pinecone, Weaviate, pgvector, mem0, etc.).
  • Exposure to compliance-heavy or multi-region systems (data residency, failover, etc.).
  • Prior experience in high-scale, SaaS, or developer-tools companies.

    • Why Join TestZeus?

  • Impact & Ownership
  • Power thousands of autonomous tests daily by owning the backend core of Hercules.
  • Influence architecture, tooling, and engineering culture from an early stage.
  • Competitive Compensation & Equity
  • Market-aligned salary with meaningful stock options .
  • Growth & Learning
  • Deep exposure to Kubernetes, cost-optimised cloud infra, AI integrations, and event-driven architectures .
  • Support for conferences, learning budgets, and open-source contributions .
  • Collaborative Culture
  • Work in small, focused squads with direct access to founders.
  • Health cover, PTO, and a Bangalore workspace optimised for high-bandwidth collaboration.

    • Application Process

    To apply, please share the following details with us :

  • Your CV
  • Your Current and Expected CTC
  • Years of experience in Backend Engineering (specifically with Python and Go )
  • Links to Public Work (e.G., GitHub, Medium, personal website)

    • 📬 Submit all the above to : hiring@testzeus.com

  • We’re excited to hear from you!
    • Create a job alert for this search

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