Full-stack Engineer

• Own the architecture and technical roadmap of all Whizz systems.
• Review every pull request before merge and keep a clear review standard.
• Design and maintain the database architecture across MySQL and PostgreSQL.
• Own Docker images, deployments and environments.
• Drive AI-assisted development across the team: agent instructions, prompts, rules for reviewing AI-generated code.
• Turn product requirements into technical tasks and mentor backend, frontend and mobile developers.
• Lead incident response and ship root-cause fixes.

Tech Lead, Russian Speaker

• Work on meaningful projects and have real responsibilities, including interacting with clients or helping develop products.
• Participate in real-life product development supporting companies in the insurance industry.
• Implement digital business innovations and technologies to improve clients' speed, scalability, and cost efficiency.
• Learn Spring Boot, Kotlin, PostgreSQL, React and Redux from experts through a structured onboarding plan.
• Work in a real-life environment with clients or within product development.
• Develop productivity and value creation within three months through learning and development support.

Full Stack Developer – Insurance

• Build responsive, intuitive web applications for Vertrax, Acumatica’s fuel-industry ERP and logistics business unit
• Design, develop, test, and deploy responsive, accessible, and visually consistent user interfaces using React, TypeScript or JavaScript, HTML, and CSS
• Translate wireframes, mockups, and product requirements into reusable, maintainable front-end components
• Develop and maintain back-end APIs and services using Java and Spring Boot
• Integrate front-end applications with RESTful APIs or GraphQL services
• Write and optimize SQL queries for application functionality, performance, and data integrity
• Improve application speed, scalability, reliability, and usability through performance analysis and sound engineering practices
• Collaborate with product managers, designers, quality assurance professionals, and engineers throughout the software development lifecycle
• Write clean, testable, well-documented code and participate in code reviews
• Use Git, npm, and related development tools for code quality, version control, and build automation
• Troubleshoot defects, resolve production issues, and contribute to continuous product improvement
• Participate in Agile planning, estimation, reviews, and retrospectives
• Stay current with modern front-end, back-end, cloud, and user-experience practices

Full Stack Software Developer

• Own the technical architecture and core systems for GrowthBricks from the ground up
• Work directly with the product founder on architecture, core systems, integrations, and the agent layer
• Design architecture spanning business context, agents, memory, tools, integrations, and feedback loops
• Build agentic workflows that reason over company context and act across CRM, sales, marketing, and product systems
• Create context extractors for sales calls, emails, internal documents, CRM states, and campaign data
• Work on prompting, context management, memory, tool use, and orchestration
• Connect GrowthBricks to the existing GTM stack
• Decide when to use MCP, APIs, open-source frameworks, third-party tools, or custom solutions
• Prototype quickly, discard weak ideas, and turn effective ideas into production primitives
• Write much of the early code and make key technical decisions
• Build a functional product with core primitives for context extraction, memory, and orchestration within the first six months
• Establish a pragmatic codebase and validate that agent actions produce measurable business value

Founding Tech Lead – GrowthBricks

• Lead the technical direction of the team and own key architecture decisions.
• Design and develop scalable backend services and APIs using Go.
• Stay hands-on with production code and solve complex technical challenges.
• Design reliable, scalable, and maintainable distributed systems.
• Lead code reviews and maintain high engineering standards across the team.
• Improve system performance, reliability, observability, and scalability.
• Identify technical risks, bottlenecks, and areas for improvement.
• Mentor Software Engineers and support their technical growth.
• Help increase team productivity and improve engineering efficiency.
• Collaborate closely with Product, QA, and other engineering teams.
• Continuously improve development processes, engineering practices, and delivery quality.
• Actively use AI-powered development tools to accelerate engineering workflows and improve code quality.
• Lead a small cross-functional team of 3 Software Engineers and 2 QA Engineers.

Tech Lead – Go, Software Engineering

• Own the reasoning core of empower, sa.global's industry-specific agentic AI platform
• Design and implement multi-agent workflows and orchestration graphs using frameworks such as LangGraph
• Apply DSPy or comparable declarative prompt-programming approaches
• Build and maintain MLflow-tracked evaluation harnesses measuring accuracy, faithfulness/hallucination rate, latency, and instruction-following
• Architect agent memory, tool-calling, guardrails, and human-in-the-loop controls for production workflows
• Prototype retrieval architectures over the Neo4j-backed Business Knowledge Graph using GraphRAG, LlamaIndex, pgvector, and pg_search
• Collaborate with Level I engineers
• Decide when agentic patterns are warranted versus simpler deterministic approaches
• Use AI coding agents to prototype and stress-test agent architectures, generate evaluation scaffolding, and build custom skills and tooling

Senior AI Product Engineer

• Build pipelines that publish security advisories from vulnerability assessments and released fixes.
• Automate vulnerability assessment across large inventories of packages, versions, and dependencies across ecosystems.
• Integrate vulnerability discovery scanners, reconcile their findings, and connect results to assessment and patching workflows.
• Build and operate Python services, command-line tools, and internal interfaces for engineers assessing vulnerabilities, tracking patches, and managing releases.
• Work directly with stakeholders to clarify requirements, agree priorities, and define how results will be verified.
• Improve build and deployment automation, monitor production systems, and troubleshoot failures across services, containers, and data stores.
• Review code and improve automated testing, security, and maintainability.
• Use AI coding agents in day-to-day development, reviewing and testing the code they produce.

Python Software Engineer

• Design, build, and enhance features across the BlueCat Integrity ecosystem
• Develop and maintain backend and frontend components using Python, React, and PostgreSQL
• Design and implement reliable, maintainable, and scalable software solutions
• Collaborate with developers, QA, and product teams to deliver high-quality features and improvements
• Solve complex technical challenges with the team
• Contribute to code quality, testing, and continuous improvement of engineering practices
• Work with integrations and APIs across the Integrity ecosystem, including public cloud providers
• Participate in an initial screening call and, if shortlisted, on-site technical assessments and cultural interviews during the job fair from October 26th to 30th

Software Developer – Integrity Team

• Participate in the design and development of business applications and customizations
• Develop data access layers, business objects, and presentation layers
• Research and prototype ERP modules using new technologies
• Support existing code, including code optimization and refactoring
• Analyze code and find and correct errors in existing functionality
• Work with development partners on architecture and code reviews
• Provide guidance and support to developers in Acumatica’s development network
• Evangelize the Acumatica xRP framework
• Collaborate with developers to create large-scale, production-grade cloud-based ERP, CRM, and other web applications

Lead Software Developer – .NET, Construction Operations

• Design and develop highly configurable, extensible, and pluggable React Native applications
• Partner with Product Management and UX/UI Design to create clean, accessible, and intuitive mobile experiences
• Collaborate with server-side engineering teams to design and integrate RESTful APIs
• Drive architectural decisions with Enterprise Architects and engineering leads
• Provide development guidance, reusable code examples, technical documentation, and unit-test strategies
• Lead and participate in design reviews, code reviews, hands-on coding, troubleshooting, implementation support, and production support
• Optimize application performance through testing, analysis, and actionable improvement recommendations
• Build and maintain native integrations across iOS and Android
• Use AI-assisted engineering tools to improve developer productivity while maintaining quality, security, and engineering standards
• Mentor engineers, promote reusable patterns, and translate complex technical problems into clear, practical solutions
• Support mobile CI/CD, release management, and publishing processes across Apple and Google ecosystems

Full-stack Engineer jobs in Serbia