Search Backend Infra Engineer Job at Perplexity (Belgrade)

Search Golang Engineer

Join Perplexity AI as a Search Golang Engineer and help architect the next gener...

Location

Belgrade, London, Berlin

Salary:

Not provided

Perplexity

Expiration Date

Until further notice

Requirements

Significant experience developing scalable Golang services for production environments
Deep understanding of distributed systems, microservices, and cloud infrastructure (AWS preferred)
Proven track record implementing systems that scale to millions of users
Strong background in Linux performance tuning, monitoring, and debugging
Experience with CI/CD pipelines, containerization, and automation
Ability to proactively tackle scaling challenges—anticipating bottlenecks before they arise
Passion for building backend solutions that power real-time, reliable search

Job Responsibility

Build highly scalable, distributed backend services using Golang
Design, develop, and maintain search infrastructure that supports exponential traffic growth
Engineer cloud-native solutions, optimizing for horizontal scale and rapid failover
Implement robust monitoring, autoscaling, and incident recovery strategies
Collaborate with product, infra, and devops teams to maximize throughput and resilience
Drive improvements in CI/CD, automation, and operational excellence for backend systems
Mentor peers and champion scalable design principles across the organization

Fulltime

Rag + Agentic Ai Lead

We are looking for a highly skilled RAG + LLM-based Agentic AI Engineer to build...

Location

Salary:

Not provided

Codvo AI

Expiration Date

Until further notice

Requirements

7+ Years
RAG Engineering
Agentic AI
Vector & Search
LLM Ops
Backend & Infra
Data Engineering
Security & Governance

Job Responsibility

Build end-to-end RAG pipelines: smart chunking, hybrid retrieval, reranking, query rewriting
Implement LangGraph-based agentic workflows with tools, planning, and self-healing behaviors
Develop and optimize vector search systems (Qdrant/Weaviate/OpenSearch)
Design multi-tenant, ontology-driven knowledge layers for enterprise data
Implement guardrails, hallucination reduction, and automated evals
Build and maintain document ingestion pipelines (PDF, DOCX, OCR, images)
Architect and deploy FastAPI-based AI microservices with caching and async execution
Integrate LLM systems with enterprise apps (SharePoint, CRM, databases, MCP tools)
Ensure security, PII safety, auditability, and governance requirements are met
Collaborate with solution architects and domain SMEs to translate use cases into working AI systems

What we offer

Work on cutting-edge agentic AI systems at production scale
Ownership over enterprise-grade architectures
Fast growth environment
Influence Codvo’s platform and accelerators

Fulltime

Senior AI Data Engineer

We are looking for a Senior AI Data Engineer to join a high-impact AI product in...

Location

United States

Salary:

Not provided

Velvetech

Expiration Date

Until further notice

Requirements

5+ years of experience in Data Engineering / ML Engineering / AI Engineering
Strong programming skills in Python
Hands-on experience with PyTorch (training and deploying deep learning models)
Experience working with Vertex AI or similar ML platforms (GCP preferred)
Proven experience with vector databases (Milvus, Pinecone, or similar)
Strong knowledge of: Feature engineering techniques, Model evaluation and validation frameworks, Predictive inference systems
Experience with multiple database paradigms: Relational (PostgreSQL), Time-series (InfluxDB), Graph (Neo4j)
Solid understanding of embeddings and semantic/vector search systems
Experience implementing model lifecycle management, including: Drift detection, Monitoring, Governance
Strong understanding of scalable system design and performance optimization

Job Responsibility

Own and develop the biometric extraction model lifecycle (training, validation, deployment)
Design and maintain a vector memory layer using tools such as Milvus or Pinecone
Build and optimize predictive inference services for real-time and batch use cases
Develop and maintain data pipelines for PFM (Personal Financial Management) data preparation
Implement advanced feature engineering frameworks and model evaluation pipelines
Work with Vertex AI for model training, deployment, and orchestration
Manage and integrate heterogeneous data storage systems: InfluxDB (time-series data), PostgreSQL (relational data), Neo4j (graph data)
Develop vector embeddings pipelines and similarity search logic
Implement model governance processes: Drift detection and monitoring, Shadow-mode validation, Performance tracking and reporting
Design and apply optimization policies for inference latency, cost, and accuracy

What we offer

FLEXIBLE working conditions
COOPERATIVE environment
Competitive salary
Many CHALLENGING and exciting projects with new opportunities and learning
GROWTH opportunities, skills and competencies improvement, and professional certification
In-company TRAINING (English, Software / DevOps / Project management / Design / Business)

Fulltime

Senior AI Platform Engineer - Data and Knowledge

We’re hiring a Senior AI Platform Engineer (Knowledge & Data) to build and own t...

Location

Salary:

Not provided

MaintainX

Expiration Date

Until further notice

Requirements

5+ years of experience in Python backend engineering and systems design experience
Experience shipping AI-powered or LLM-integrated backend systems
Experience with vector DBs (Qdrant/Pinecone/Chroma/etc.)
Understanding of embeddings, chunking, and retrieval strategies
Experience building search or retrieval systems over unstructured data
Comfort working across multiple layers (services, data, infra, AI tooling)

Job Responsibility

Build scalable backend services and internal APIs for the AI platform
Integrate LLMs and retrieval into reliable, production-ready workflows
Build knowledge ingestion pipelines for LLMs (documents, APIs, semi-structured data)
Design chunking and embedding approaches together with vector DB data models and indexing strategies
Implement retrieval pipelines (semantic, keyword, hybrid) and caching
Contribute to shared infrastructure: CI/CD, observability, deployments

What we offer

Competitive salary and meaningful equity opportunities
Healthcare, dental, and vision coverage
401(k) / RRSP enrollment program
Take what you need PTO

Staff Software Engineer

The Discovery team sits at the core of Harmonic’s product and data engine. We ma...

Location

United States , New York

Salary:

210000.00 - 280000.00 USD / Year

Harmonic

Expiration Date

Until further notice

Requirements

7-8+ YoE building distributed systems or large scale backend architecture
Designed and scaled search, recommendation, or ranking systems that balance precision, recall, and performance
Led or heavily contributed to ML or LLM integrations in production
A track record of technical leadership mentoring others, introducing frameworks, and influencing technical direction
Strong experience with data-intensive systems, asynchronous processing, or event-driven architectures

Job Responsibility

Architect the core intelligence behind Scout
Own the end to end architecture of our sourcing engine from data ingestion, ranking, personalization, and model orchestration
Define scalable frameworks for retrieval, reranking, and LLM driven evaluation to ensure we deliver highly personalized and high quality results
Create architectural patterns that integrate Scout seamlessly with our existing products to power repeatable sourcing workflows
Lead agentic experimentation and evaluation
Drive technical discovery for emerging technologies (e.g. memory systems, schema, prompt libraries, embedding models, and agentic frameworks)
Improve and extend our evaluation pipelines to test new models and determine lifts in specific parts of our product
Build systems that allow fast iteration without compromising quality or reliability
Shape AI native product experiences
Partner with product and design to define patterns that make LLM powered sourcing intuitive and fast

What we offer

Top of the line health, dental and vision insurance, with 100% premium covered
401k matching
Free lunch in office
Monthly team dinner for each office
Commuter benefits

Progression And Destination Tutor

We are seeking a Progress and Destination Tutor to join our team. In this role y...

Location

United Kingdom , Colchester

Salary:

28686.84 - 31284.24 GBP / Year

360 Resourcing Solutions

Expiration Date

Until further notice

Requirements

Experience of working face to face with different age and client groups, but particularly with 16-19 year olds
Experience of supporting, motivating and mentoring individuals against goals
Experience of handling difficult situations, including confrontation, in a calm and effective way
Proven experience of working in a busy environment, managing conflicting priorities and meeting deadlines
Proven record of willingness to take initiative, adapt and being proactive
Proven record of working positively and collaboratively across internal teams, management, key stakeholders and colleagues developing and maintaining positive working relationships
Experience of working with various forms of communication including email, texting and telephone
Direct experience of inputting data into databases, accurately and with good use of English
Education to level 3 or above and/or a professional qualification in relevant subject area or equivalent
Minimum of Level 2 qualification in English and Mathematics GCSE 4+ or C and above / CSE Level 1 / O-Level C or above / Level 2 Adult Numeracy or Literacy or equivalent

Job Responsibility

Supporting students with their induction and orientation to the College
To have a particular focus in the first few weeks of the academic year on students who enrol late, or who show signs of disengagement or detachment
Reviewing students’ overall attendance, punctuality, behaviour, and attitudes to learning
To support the course team and students with to find, secure, record and complete, 30 hours of work-related experience placement
Delivery, developing and adapting Personal Development sessions and resources
Using relevant software such as Google classroom to deliver aspects of the Personal Development Programme
Developing a personal understanding of each tutee by holding regular one to one tutorials

Senior CRA

Location

Poland , Warsaw

Salary:

Not provided

iconplc

Expiration Date

Until further notice

Requirements

Bachelor's degree in a scientific or healthcare-related field
Minimum of 2 years of experience as a Clinical Research Associate
In-depth knowledge of clinical trial processes, regulations, and ICH-GCP guidelines
Strong organizational and communication skills, with attention to detail
Ability to work independently and collaboratively in a fast-paced environment
Willingness to travel as required (approximately 60%)

Job Responsibility

Conducting site qualification, initiation, monitoring, and close-out visits for clinical trials
Ensuring protocol compliance, data integrity, and patient safety throughout the trial process
Collaborating with investigators and site staff to facilitate smooth study conduct
Performing data review and resolution of queries to maintain high-quality clinical data
Contributing to the preparation and review of study documentation, including protocols and clinical study reports

What we offer

Various annual leave entitlements
A range of health insurance offerings to suit you and your family’s needs
Competitive retirement planning offerings to maximize savings and plan with confidence for the years ahead
Global Employee Assistance Programme, LifeWorks, offering 24-hour access to a global network of over 80,000 independent specialized professionals who are there to support you and your family’s well-being
Life assurance
Flexible country-specific optional benefits, including childcare vouchers, bike purchase schemes, discounted gym memberships, subsidized travel passes, health assessments, among others

Fulltime

Medical Records Clerk

We are looking for a detail-oriented Medical Records Clerk to support healthcare...

Location

United States , Falmouth

Salary:

Not provided

Robert Half

Expiration Date

Until further notice

Requirements

Experience handling medical records in a healthcare, clinic, or related administrative environment
Working knowledge of electronic medical record systems and patient documentation practices
Familiarity with platforms such as Allscripts, Cerner, or similar medical record technologies
Strong attention to detail with the ability to maintain accuracy when entering and reviewing information
Understanding of confidentiality standards and proper handling of sensitive patient data
Ability to manage multiple priorities, stay organized, and meet deadlines in a fast-paced setting
Effective communication skills and the ability to collaborate with clinical and administrative staff.

Job Responsibility

Maintain and update patient files in electronic medical record systems to ensure information remains accurate, complete, and properly documented
Review submitted data for accuracy, correct discrepancies, and verify that patient details are entered in accordance with healthcare documentation standards
Retrieve and provide medical records to authorized personnel in a timely manner while safeguarding confidentiality at all times
Process record requests and documentation inquiries in alignment with established compliance and privacy guidelines
Scan, index, and file incoming documents so records are organized and easy for staff to access when needed
Work closely with medical and administrative teams to identify missing information and help keep patient charts current
Respond to routine questions related to records management and support day-to-day administrative tasks within the department.

What we offer

medical
vision
dental
life and disability insurance
401(k) plan

Fulltime

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