Senior Data Scientist
Workato
Senior Data Scientist at Workato is a full time role based in Sofia, Bulgaria, Bulgaria. It was published on 5 August 2026 and was open at last check.
| Role | Senior Data Scientist |
|---|---|
| Company | Workato |
| Location | Sofia, Bulgaria, Bulgaria |
| Employment type | Full Time |
| Published | 5 August 2026 |
| Status | Open at last check |
About Workato
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
Why join us?
Ultimately, Workato believes in fostering a flexible, trust-oriented culture that empowers everyone to take full ownership of their roles . We are driven by innovation and looking for team players who want to actively build our company.
But, we also believe in balancing productivity with self-care . That’s why we offer all of our employees a vibrant and dynamic work environment along with a multitude of benefits they can enjoy inside and outside of their work lives.
If this sounds right up your alley, please submit an application. We look forward to getting to know you!
Also, feel free to check out why:
- 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
We are looking for an exceptional Middle / Senior Machine Learning Engineer / Data Scientist to join our growing AI team. In this role, you will design, build, deploy, and improve ML/LLM-powered services and features that power intelligent automation and AI-driven product experiences across the Workato platform. You will work closely with our Engineering, Product, and Design teams to define and track product metrics and evaluation strategies, design customer-facing experiments and dive deep to provide actionable insights.This role is ideal for someone who combines strong ML/LLM intuition, software engineering skills and a practical mindset for shipping reliable, scalable AI systems.
In this role, y ou will also be responsible to:
- Build and improve AI services using LLMs and custom machine learning models for production use cases.
- Design, develop, and operate ML/LLM systems end-to-end, from prototyping to deployment and monitoring.
- Write high-quality Python code that is testable, maintainable, and efficient.
- Improve validation, observability, and performance monitoring for ML services (quality, latency, reliability, cost).
- Partner cross-functionally with product managers, platform engineers, and other stakeholders to ship AI-powered product capabilities.
- Evaluate and improve existing implementations by identifying bottlenecks, bugs, and opportunities for optimization.
- Design controlled experiments to test the features for our AI-based products and perform deep analysis from the results to find actionable insights
- Contribute to technical design and code reviews, helping raise engineering quality across the team.
- Experiment and iterate on model behavior, prompting, retrieval, tool use, or orchestration strategies to improve user outcomes.
Requirements
Qualifications / Experience / Technical Skills
- Bachelor’s or Master’s degree in Computer Science, Engineering, Mathematics, Statistics, or equivalent practical experience
- 3+ years of experience in Machine Learning Engineering, Data Science, or a similar role.
- Strong Python programming skills.
- Hands-on experience with NLP and/or LLM-based systems.
- Strong understanding of software engineering fundamentals (testing, code quality, debugging, version control).
- Ability to work collaboratively in a fast-moving environment and drive projects with ownership.
Nice to Haves
- Experience with tool-use agents or workflow-aware AI systems.
- Experience building AI products in enterprise SaaS environments.
- Experience with A/B testing and statistical significance techniques.
- Experience with LLMOps/MLOps tooling and practices (monitoring, evaluation pipelines, model rollout, CI/CD).
- Experience working with modern data warehouses such as Amazon Redshift Snowflake.
(REQ ID: 2898)
Create your free OnJob profile to apply — we'll take you to Workato's application after sign-up. · Posted 5 Aug 2026.
Senior Data Scientist at Workato — questions answered
What does the Senior Data Scientist role at Workato pay?
Workato does not publish a salary on this Senior Data Scientist listing, so OnJob shows no figure for it rather than an estimate. For what this role pays across the market, the OnJob salary guides aggregate the live listings that do disclose pay.
Where is the Senior Data Scientist role at Workato based?
Workato lists this Senior Data Scientist role in Sofia, Bulgaria, Bulgaria, advertised as full time work at that location. Larger employers sometimes cover several sites under one city name, so confirm the exact office with Workato before you apply.
Is the Senior Data Scientist role at Workato still open?
The Senior Data Scientist posting at Workato was open at OnJob's last check of the employer's careers page, having been published on 5 August 2026. OnJob re-checks source listings on each build and marks a role closed once it disappears, but listings can close without notice, so the employer's own page is the final word.
How do you apply for the Senior Data Scientist role at Workato?
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