Sofia, Sofia-City, Bulgaria · Remote OK
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 …
Skills: Rust, Go, WASM, Systems architecture, FFI bindings
Sofia, Sofia-City, Bulgaria · Remote OK
Dreаmix was founded 19 years ago by passionate IT students, who wanted to create the dreamiest workplace where everyone is heard, works under transparent management, and lives up to their full potential. Now, many years …
Skills: Python, Kafka, Spark, Data Engineering, Distributed Systems
Sofia, Sofia-City, Bulgaria · On-site
OPENTEXT - THE INFORMATION COMPANY OpenText is a global leader in information management, where innovation, creativity, and collaboration are the key components of our corporate culture. As a member of our team, you will…
Skills: Technical Support, Troubleshooting, Linux Systems, Networking Fundamentals, TCP/IP
Sofia, Sofia-City, Bulgaria · Hybrid
Manual QA Engineer Job Description — IC2 (Level 200) Career Track / Level: Professional Track, IC2 (200) Job Profile: Technology → Manual Testing Location: Sofia, Bulgaria Reports to: QA Team Lead Role Purpose Administer…
Skills: Manual Testing, Test Planning, UI Testing, API Testing, Performance Testing
Sofia, Sofia-City, Bulgaria · Hybrid
$4k–$4k/mo
Who We Are Welcome to TELUS Digital — where innovation drives impact at a global scale. As an award-winning digital product consultancy and the digital division of TELUS, one of Canada’s largest telecommunications provid…
Skills: Automation Engineering, Python, RPA, SQL, API Integration
Sofia, Sofia-City, Bulgaria · Hybrid
At PwC, we help clients build trust and reinvent so they can turn complexity into competitive advantage. We’re a tech-forward, people-empowered network with more than 370,000 people in 149 countries. Across audit and ass…
Skills: Data Science, AI Assurance, Model Risk Management, Data Governance, Regulatory Compliance
Sofia, Sofia-City, Bulgaria · On-site
Company Description Аbout Playtech Founded in 1999, the company has a premium listing on the main Market of the London Stock Exchange and is focused on regulated and regulating markets across its B2B and B2C businesses. …
Skills: Python, LLMs, RAG, AI agents, React
Sofia, Sofia-City, Bulgaria · On-site
Company Description Founded in 1999, the company has a premium listing on the Main Market of the London Stock Exchange and is focused on regulated and regulating markets across its B2B businesses. By leveraging its propr…
Skills: Testing Methodologies, SQL, MySQL, PostgreSQL, Network Troubleshooting
Sofia, Sofia-City, Bulgaria · On-site
At Cognyte, you’ll collaborate with expert colleagues around the globe to solve problems most people will never even know exist! You’ll be part of building unique solutions shaped by real investigative methodologies, ena…
Skills: SQL, Python, Apache Spark, ClickHouse, Kubernetes
Sofia, Sofia-City, Bulgaria · On-site
Company Description Fastmarkets is an industry-leading price-reporting agency (PRA) and information provider for global commodities, providing price data, news, analytics and events for the agriculture, forest products, …
Skills: SQL, Python, Snowflake, Dbt, Data engineering
Sofia, Sofia-City, Bulgaria · Hybrid
Premium Services Engineer - WLAN This role has been designed as 'Hybrid' with a requirement that you will work on average 2 days per week from an HPE office. Who We Are: Hewlett Packard Enterprise is the global edge-to-c…
Skills: WLAN, Troubleshooting, RF analysis, Wireless networking, HPE Aruba Central
Sofia, Sofia-City, Bulgaria · On-site
Our Mission At Palo Alto Networks®, we’re united by a shared mission—to protect our digital way of life. We thrive at the intersection of innovation and impact, solving real-world problems with cutting-edge technology an…
Skills: Golang, Cloud-native, SaaS, Kubernetes, Distributed systems
Sofia, Sofia-City, Bulgaria · On-site
The AI Security Analyst is responsible for identifying, assessing, and mitigating security risks associated with artificial intelligence (AI), machine learning (ML), and data-driven systems. This role bridges traditional…
Skills: Cybersecurity, AI Security, Machine Learning, Threat Modeling, Risk Assessment
Sofia, Sofia-City, Bulgaria · Hybrid
$4k–$4k/mo
Who We Are Welcome to TELUS Digital — where innovation drives impact at a global scale. As an award-winning digital product consultancy and the digital division of TELUS, one of Canada’s largest telecommunications provid…
Skills: Python, RPA, UiPath, Automation Anywhere, Power Automate
Sofia, Sofia-City, Bulgaria · On-site
Req ID:525267 At Alstom, we understand transport networks and what moves people. From high-speed trains, metros, monorails, and trams, to turnkey systems, services, infrastructure, signalling and digital mobility, we off…
Skills: Project management, Maintenance management, Railway industry knowledge, Stakeholder management, Contract management
Sofia, Sofia-City, Bulgaria · Hybrid
Our Mission At Palo Alto Networks®, we’re united by a shared mission—to protect our digital way of life. We thrive at the intersection of innovation and impact, solving real-world problems with cutting-edge technology an…
Skills: Python, AWS Serverless Architecture, AWS CDK, Cloud-native applications, Microservices
Sofia, Sofia-City, Bulgaria · Remote OK
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 …
Skills: Ruby on Rails, Ruby, API Development, Backend Infrastructure, PostgreSQL
Sofia, Sofia-City, Bulgaria · On-site
About euNetworks and expansion of our operations to Sofia euNetworks is a critical bandwidth infrastructure provider, a specialist in connecting data centres and critical locations across Europe, and a leading cloud conn…
Skills: Incident management, Change management, Network monitoring, Troubleshooting, IP networks
Sofia, Sofia-City, Bulgaria · Hybrid
About Us The Financial Times (FT) is one of the world’s leading business news and information organisations. We are recognised globally for our authority, integrity, and accuracy. We provide a broad range of essential se…
Skills: Python, Backend Engineering, Data Engineering, Apache Airflow, AWS
Sofia, Sofia-City, Bulgaria · Hybrid
About Us The Financial Times is one of the world’s leading news organisations, globally recognised for its authority, integrity and accuracy, with a mission to deliver quality information and services worldwide. At the F…
Skills: Application security, Vulnerability management, Threat modelling, Python, CI/CD
Sign up with Clera and we'll reach out the moment a role actually fits you — no more spraying applications into the void.
You will design and build core language and runtime features for the Expression Language, Data Mapper, and Decision Engine. This involves owning the Rust core and integrating it into Ruby and Go services using FFI bindings.
The role requires deep, hands-on experience with Rust at a systems level and production-level competence in Go. Candidates should have a strong background in algorithms, data structures, and experience with WASM sandboxing or compiler 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
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
Engine team owns three components used company-wide: Workato Expression Language (our original mini-language for data transformation in recipes), Data Mapper (a new, UI-oriented mapping and format-transformation component), and Decision Engine (a rules component, currently static-only, being expanded to support formulas). The stack is a Rust core with WASM sandboxing per component, with bindings into Ruby and GO.
In this role, you will also be responsible to:
Design and build core language and runtime features across the Expression Language, Data Mapper, and Decision Engine.
Own and extend the Rust core, embedding it as a native component inside Ruby and Go services via FFI bindings.
Help expand Decision Engine from static rules to support formulas.
Contribute to WASM sandboxing so each component runs safely isolated from the others.
Partner closely with Product and with the AI team on what these components need to expose.
Deep, hands-on Rust experience at a systems/backend level.
Working competence in Go - real production ability, though not necessarily your primary language.
Proven experience embedding Rust as a library or native extension inside another language's runtime (e.g. Rust-in-Ruby, Rust-in-Go).
Strong algorithms and data-structures fundamentals (sorting, trees, data processing).
Comfort operating without a fixed process methodology, in a deadline-driven, cross-team environment.
Experience with AI-assisted workflows, particularly in system analysis and hunting for inconsistencies and corner cases.
Scale: Experience with systems handling millions of requests/events per day.
Exceptional technical writing and communication abilities for diverse audiences.
Experience planning phased implementations and leading complex cross-team projects.
Proven track record with feature flags, gradual rollouts, and zero-downtime deployments.
Ability to facilitate architectural decision-making and create technical roadmaps.
Mentorship mindset and cost analysis capabilities.
Compiler engineering experience - a strong plus.
WASM/sandboxing experience (Wasmtime, Wasmer, WASI, or similar).
Familiarity with data-format standards/RFCs (JSON, Unicode).
Awareness of project-cycle practices (Scrum/waterfall) and testing discipline.
Community: open source contributions, conference speaking, technical writing.
The industry’s only Control and Execution Platform for Enterprise AI.
Workato is the leading Control and Execution Platform for Enterprise AI – the neutral platform enterprises trust to put AI to work across their business. We connect to every app, system, and process your business runs on, with no data migration, no rip-and-replace, so AI can reliably orchestrate business processes in production, at enterprise scale. Built on more than a decade of running mission-critical processes for over half the Fortune 500, including Nasdaq, Amazon, Cisco, Vodafone, Atlassian, and Lucid Motors, Workato turns 14,000+ enterprise systems into one governed execution layer. AI has solved reasoning. The next frontier is execution, with Workato.
Offices: 1530 Page Mill Road, Palo Alto, California 94304, US · 71 Ayer Rajah Crescent, #01-01, Singapore, 139951, SG · 110 Wall Street, #4-007, New York, NY 10005, US · Asean Dr, Level 6, Muntinlupa, National Capital Region 1781, PH · Wework Hibiya Fort Tower, 1-1-1 Nishishinbashi, Minato, Tokyo, Marunouchi Trust Tower - Main, Level 20,, Tokyo, 105-0003, JP
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