Search Backend Infra Engineer Job at Perplexity (Belgrade)

Senior Machine Learning Engineering Manager, Gen AI

We're seeking a Senior Machine Learning Manager (M60) to lead a cross-functional...

Location

United States

Salary:

193500.00 - 303150.00 USD / Year

Atlassian

Expiration Date

Until further notice

Requirements

8+ years in ML, search, or backend engineering roles, with 3+ years leading teams
Strong track record of shipping ML-powered or LLM-integrated user-facing products
Experience with RAG systems (vector search, hybrid retrieval, LLM orchestration)
Deep experience in either modeling (e.g., LLMs, search, NLP) or engineering (e.g., backend infra, full-stack), with the ability to lead end-to-end
Deep understanding of LLM ecosystems (OpenAI, Claude, Mistral, OSS), orchestration frameworks (LangChain, LlamaIndex), and vector databases (Weaviate, Pinecone, FAISS, etc.)
Strong product intuition and ability to translate complex tech into valuable user features
Familiarity with GenAI evaluation methods: hallucination detection, groundedness scoring, and human-in-the-loop feedback loops
Master’s or PhD in Computer Science, Machine Learning, or related field preferred—or equivalent practical experience

Job Responsibility

Lead the vision, design, and execution of LLM-powered AI products, leveraging advance AI modeling (e.g. SLM post-training/fine-tuning), RAG architectures and hybrid ranking system
Define system architecture across retrievers, rankers, orchestration layers, prompt templates, and feedback mechanisms
Work closely with product and design teams to ensure delightful, fast, and grounded user experiences
Build and manage a cross-disciplinary team including ML engineers, backend/frontend engineers, and applied scientists
Foster a culture of E2E ownership — empowering the team to move from prototype to production quickly and iteratively
Mentor individuals to grow in both technical depth and product acumen
Shape the technical roadmap and long-term strategy for GenAI search across Atlassian’s product suite
Partner with platform and infra teams to scale inference, evaluate performance, and integrate usage signals for continuous improvement
Champion data quality, grounding, and responsible AI practices in all deployed features

What we offer

health and wellbeing resources
paid volunteer days

Fulltime

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

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

New

Senior Lecturer/Associate Professor in Literacy

As a Senior Lecturer / Associate Professor in Literacy, you will play a key role...

Location

Australia , Albury-Wodonga, Bathurst, Port Macquarie, Wagga Wagga

Salary:

Not provided

Charles Sturt University

Expiration Date

June 08, 2026

Requirements

A doctoral qualification relevant to literacy or education, with a recognised teaching qualification
A strong record of high-quality teaching and student-centred learning
An established or emerging research profile aligned to literacy, curriculum or pedagogy
The ability to build productive partnerships and contribute to academic leadership

Job Responsibility

Lead impactful literacy teaching and research
Teach across online and on-campus environments
Shape future teachers and education practice
Contribute to curriculum innovation
Build strong relationships with students and partners
Provide academic leadership in literacy education
Contribute to the School's research profile
Supervise higher degree research students
Actively engage with professional, community and government stakeholders
At Associate Professor level: significant academic leadership, research impact, and contribution to the broader discipline at national/international level

What we offer

17% superannuation

Fulltime

New

Program Manager - Controls and Avionics Solutions

This position is based in Endicott, New York. New York and on-site work will be ...

Location

United States , Endicott

Salary:

120874.00 - 205486.00 USD / Year

Baesystems

Expiration Date

Until further notice

Requirements

Bachelor’s degree in engineering, engineering or manufacturing management, or other discipline
Demonstrated ability for building strong customer/ stakeholder relationships
Strong communication, negotiation, and presentation skills
Ability to interpret data and make data-driven decisions
Highly adaptable with strong initiative
Demonstrated ability to lead and motivate cross-functional teams
Knowledge of the global aviation market and regulatory requirements and/ or military aviation market

Job Responsibility

Maintaining strong customer relationships and leading a multidisciplinary team to execute complex development programs within schedule and budget
Leadership and management oversight of a project team assuring that project’s financials, schedule, and technical objectives are met and that the highest level of customer satisfaction is achieved while meeting all contractual commitments
Work effectively and collaboratively with Engineering, Operations, and all Program Office functional leadership to assure deliveries continue to exceed customer commitments and achievement of financial commitments to the company
Manages, coordinates, plans, organizes, controls, integrates, and executes projects within the Military Aircraft Systems portfolio
Participates in the support of new business and in the development of proposals

What we offer

Health insurance
Dental insurance
Vision insurance
Health savings accounts
401(k) savings plan
Disability coverage
Life and accident insurance
Employee assistance program
Legal plan
Discounts on home, auto, and pet insurance

Fulltime

New

Finance Business Partner (Research)

Full Time, Fixed Term (12 months). Level 7 - $101,421 to $110,819 p.a. (plus 17%...

Location

Australia , Wagga Wagga

Salary:

101421.00 - 110819.00 AUD / Year

Charles Sturt University

Expiration Date

June 02, 2026

Requirements

A degree in Accounting or Finance (professional accounting body membership is desirable)
Experience in project budgeting, forecasting and financial analysis
Background in management accounting or business partnering within complex environments
exposure to government funding or higher education is advantageous
Excellent stakeholder engagement skills, with the ability to work effectively with academics and researchers
Familiarity with business intelligence systems and dashboard reporting

Job Responsibility

Partner with academics to deliver strategic financial insights that enable research success
Directly influence world-class projects and decisions shaping the future of education and innovation
Lead initiatives that enhance financial governance, deliver accurate and timely reporting, and support key projects such as cost-pricing systems and research budgeting
Help build financial capability across the University, fostering collaboration and continuous improvement

What we offer

Flexibility with a 35-hour work week
Access to hybrid work arrangements
17% superannuation

Fulltime

New

Associate Lecturer/ Lecturer in Oral Health

Make a real impact by educating future oral health professionals to serve the ur...

Location

Australia , Wagga Wagga

Salary:

80046.00 - 134965.00 AUD / Year

Charles Sturt University

Expiration Date

June 16, 2026

Requirements

A qualification relevant to the discipline and appropriate to the level being applied for
Full registration (for teaching/research) as a Dentist or Oral Health Therapist with the Australian Health Practitioner Regulation Agency (Ahpra)
Excellent understanding of the clinical practice of oral health therapy, supported by a record of teaching and subject coordination relevant to the discipline and appropriate to the level being applied for
Evidence of the delivery of high quality student-centred learning and teaching in oral health therapy and/or general dentistry
A record of research activity or capability relevant to the discipline and appropriate to the level being applied for, as outlined in the position descriptions, may facilitate the progression of research opportunities

Job Responsibility

deliver high-quality teaching, clinical supervision and learning experiences in Oral Health
work with students in both clinical and preclinical settings while contributing to curriculum development, industry engagement and community partnerships

What we offer

Generous support provided to assist with relocating to Riverina’s beautiful Wagga Wagga or surrounds
17% superannuation

Fulltime

Select Country

Search Backend Infra Engineer

Perplexity

Location:
Serbia , Belgrade

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
February 21, 2026

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