Workato
Workato19d ago

Senior Software Engineer (MLAI services)

EngineeringSoftware EngineerSoftware Engineering
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Quick Summary

Key Responsibilities

Design, build, and maintain AI-powered services and APIs, leveraging LLMs (OpenAI, Anthropic, Qwen, OSS models) and custom ML models.

Technical Tools
EngineeringSoftware EngineerSoftware Engineering

Workato delivers enterprise infrastructure for the agentic era, redefining iPaaS and helping enterprises unify data, applications, processes, and AI into a single, governed platform. A leader in Enterprise MCP and trusted by 50% of the Fortune 500, Workato’s cloud-native architecture connects every application, data source, and process to power real-time orchestration at scale. With enterprise-grade security and continuous innovation at its core, Workato provides the trusted foundation for organizations to automate with confidence and operationalize AI across the business. To learn more, visit www.workato.com

What We Offer

~1 min read
Business Insider named us an “enterprise startup to bet your career on”
Forbes’ Cloud 100 recognized us as one of the top 100 private cloud companies in the world
Deloitte Tech Fast 500 ranked us as the 17th fastest growing tech company in the Bay Area, and 96th in North America
Quartz ranked us the #1 best company for remote workers

Responsibilities

~2 min read

We are looking for a Senior Python Engineer to play a key role in building the core of our AI platform. In this position, you will design and develop production-grade systems that power intelligent automation, agentic workflows, and large-scale retrieval services. This is a highly technical, hands-on role that involves close collaboration with product and platform teams to transform advanced AI concepts into reliable, scalable, and secure solutions used across our enterprise ecosystem. You will also be responsible to:

  • Design, build, and maintain AI-powered services and APIs, leveraging LLMs (OpenAI, Anthropic, Qwen, OSS models) and custom ML models.

  • Develop an enterprise-grade agentic framework that enables orchestration, retrieval, and collaboration between multiple AI agents.

  • Implement and optimize knowledge retrieval systems and agentic search capabilities using vector databases such as Qdrant and ElasticSearch.

  • Write well-structured, efficient, and testable Python code for production services, experimentation, and internal developer tools.

  • Build and maintain shared Python libraries and SDKs used across multiple applications and microservices.

  • Collaborate with cross-functional teams on architecture, internal protocols, and API standards to ensure consistency and reliability across the platform.

  • Develop and enhance monitoring, validation, and observability for production-grade AI solutions.

  • Drive the full software development lifecycle - from design and implementation to deployment, monitoring, and continuous improvement.

  • Identify and resolve performance bottlenecks, reliability issues, and scaling challenges in complex, data-intensive environments.

  • Participate in code reviews and technical discussions, mentoring other engineers and contributing to a culture of excellence.

  • Building an evaluation and observability framework for AI model performance and reliability.

  • Developing an agentic orchestration platform that enables collaboration among multiple AI agents and tools.

  • Implementing semantic retrieval and agentic search capabilities over large enterprise knowledge bases.

  • Designing AI services that process and reason over high-volume real-world data at scale.

Requirements

~1 min read

Requirements

~1 min read
  • Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience.

  • 5+ years of experience as a Software Engineer, with strong proficiency in Python.

  • Proven track record of building and maintaining production-grade systems using Python.

  • Strong understanding of distributed systems, API design, and data-driven architectures.

  • Experience with relational and non-relational databases (PostgreSQL, Elastic, Qdrant, or similar).

  • Familiarity with AI/ML system design, including LLM integration and evaluation pipelines.

  • Knowledge of DevOps and observability practices (CI/CD, monitoring, metrics, and model validation).

  • Python • FastAPI • LLM APIs (OpenAI, Anthropic, Qwen, OSS) • LiteLLM • Qdrant • PostgreSQL • ElasticSearch • Langfuse • Kubernetes • GitHub Actions • ArgoCD

Nice to Have

~1 min read
  • Experience working with multiple LLM providers (OpenAI, Anthropic, Qwen, open-source models).

  • Background in developer platforms or AI infrastructure services.

  • Familiarity with vector databases, semantic retrieval, and knowledge graph architectures.

  • Exposure to Langfuse, LiteLLM, LangChain, or similar frameworks.

  • Experience developing enterprise-scale SaaS or distributed backend systems.

  • Contributions to open-source projects in Python, AI, or infrastructure engineering.

  • Excellent communication skills, with the ability to convey complex technical ideas clearly to both technical and non-technical audiences.

  • Collaborative and proactive approach, comfortable working across teams in a dynamic environment.

  • Strong analytical and problem-solving abilities, with a focus on continuous improvement and innovation.

  • Curiosity and a genuine interest in emerging AI technologies and modern backend architectures.

Location & Eligibility

Where is the job
Sofia, Bulgaria
On-site at the office
Who can apply
BG
Listed under
Bulgaria

Listing Details

Posted
April 9, 2026
First seen
April 9, 2026
Last seen
April 29, 2026

Posting Health

Days active
19
Repost count
0
Trust Level
29%
Scored at
April 28, 2026

Signal breakdown

freshnesssource trustcontent trustemployer trust
Workato
Workato
greenhouse

Our founding team helped build some of the earliest integration platforms. Now they have reimagined Integration and Automation to enable companies to tap into the growth mindset and transform their organization with Workato.

Employees
750
Founded
2013
View company profile
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WorkatoSenior Software Engineer (MLAI services)