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TX Services

Senior Software Engineer – AI, LLMs, Agents, Integrations

TX Services

. Design and develop AI applications, assistants, and automations .

Posted 10/14/2026full-timeBelgrade • SerbiaSeniorWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates strong proficiency in TypeScript and JavaScript, with practical experience in AI application development, LLM integrations, and secure application design. Capable of evaluating technical approaches and delivering maintainable solutions in collaboration with cross-functional teams.

Highest-signal resume keywords
TypeScript ProficiencyJavaScript ProficiencyExperience with LLM APIsCloudflare Platform ExperienceAI Application Development

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
TypeScriptJavaScriptPythonVercel AI SDKLLM APIsCloudflare WorkersSQL/SQLiteReactAutomated TestingModel Context Protocol (MCP)
Soft Skills
CollaborationCommunicationProblem-Solving
Tools & Technologies
Vercel AI ElementsHonoDurable ObjectsD1R2GitPnpmVitestESLintPrettier
Industry Keywords
AI ApplicationsEnd-to-End SolutionsSecure AuthenticationRole-Based Access ControlData PrivacyOperational RequirementsPrompt DesignStreamingTool CallingContext Management

Tech Stack

Tools & technologies
JavaScriptPythonReactSQLSQLiteTypeScript

About the role

Key responsibilities & impact
  • Design and develop AI applications, assistants, and automations
  • Integrate LLMs, knowledge sources, and enterprise systems via APIs, SDKs, and MCP
  • Develop agents with tool access, context management, persistent state, and governed approval workflows
  • Connect backend services, data processing, and web interfaces into end-to-end solutions
  • Leverage prompting, structured outputs, tool calling, and RAG
  • Evaluate models and technical approaches based on quality, data privacy, cost, latency, and operational requirements
  • Secure applications through testing, LLM evaluations, monitoring, and traceable error handling
  • Shape architectural decisions, code reviews, and technical documentation with the team
  • Work with project leads, business stakeholders, and external developers from technical concept through prototyping and production deployment
  • Evaluate technical alternatives, respect existing architecture decisions, and develop maintainable solutions
  • Test assumptions early, deliver in manageable iterations, and communicate technical limitations
  • Use AI-assisted development tools while verifying output and taking responsibility for code quality, security, and functionality

Requirements

What you’ll need
  • Strong proficiency in TypeScript and JavaScript, including strict typing, asynchronous processing, and modular architecture
  • Practical experience with at least one additional language, such as Python
  • Hands-on experience with Vercel AI SDK and LLM APIs such as OpenAI API
  • Experience with streaming, tool calling, structured outputs, prompt and context design
  • Understanding of model limitations, token consumption, latency, and cost
  • Experience with Cloudflare Agents SDK, Project Think, and Model Context Protocol (MCP)
  • Understanding of stateful agents, orchestration, tool binding, and human approvals
  • Experience with Cloudflare Workers, Durable Objects, D1, and R2
  • Experience with serverless applications, persistent state, and separation of application data and file storage
  • Experience with Hono, HTTP/REST APIs, and Zod for runtime validation
  • Knowledge of secure authentication, role-based access control, and robust external-system integration
  • Experience with React, Vite, Tailwind CSS, shadcn/ui, and Vercel AI Elements
  • Experience developing chat and agent interfaces with streaming, status indicators, and approval workflows
  • Experience with SQL/SQLite, Prisma ORM, and database migrations
  • Knowledge of clean data models and strict separation of user and tenant data
  • Experience with Git, pnpm, Vitest, ESLint, Prettier, Wrangler, and CI/CD
  • Experience with automated testing, systematic error analysis, and traceable changes
  • Solid experience with TypeScript, React, LLM integrations, and the Cloudflare platform
  • Understanding of embeddings, semantic search, RAG, hallucinations, prompt injection, and unauthorized tool access

Benefits

Comp & perks
  • Benefits, plans, and administrative details discussed during the HR Call
  • Perks information available on the company website
  • 3D office tour available