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

New

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

Automotive Technician

Immediately hiring! We’re looking for responsible, detailed people who are ready...

Location

United States of America , Honolulu

Salary:

21.00 USD / Hour

avis budget group

Expiration Date

Until further notice

Requirements

Valid Driver’s License and good driving record
At least 2 years of auto repair experience or coursework with automotive certifications
1 ASE certification (ability to acquire 2 additional ASE certifications within first year)
Knowledgeable in areas covered by the ASE certification programs, including, but not limited to, Engine Repair, Drive Train/Axles, Suspension/Steering, Brakes, Electrical, Heating/Air Conditioning, Engine Performance and Light Vehicle/Diesel
Comfortable working in a mechanical shop with moderate or loud noise levels
Must have a complete set of tools required for auto repair and maintenance
Basic computer skills including typing, data entry
Must be able to lift up to 50 pounds, continuously stand, bend, reach, walk, sit and kneel frequently, enter, exit and drive vehicles
Must be 18 years of age and legally authorized to work in the United States

Job Responsibility

Conducting essential repairs on a diverse range of vehicle brands and models, requiring minimal technical oversight
Performing various maintenance activities such as oil changes, lubrication, tire repairs, and potentially warranty repairs based on proficiency level
Supporting skilled mechanics in handling intricate repair procedures

What we offer

Up to $3,500 Retention Bonus
Shift Premium may Apply
Bi-weekly hourly wage (New York and Puerto Rico: weekly wage)
On-the-job training to expand your automotive abilities and help to obtain ASE Certificates
Paid time off
Medical, dental and other insurance
Flexible spending account opportunity to contribute up to $270 as a tax-free benefit for public transportation or parking expenses
Retirement benefits (401k)
Employee discounts, including discounted car rental and discounted prices on the purchase of Avis/Budget cars

Fulltime

New

Senior Customer Service Representative

Under limited supervision, the Senior Customer Service Representative responds t...

Location

United States , Chicago

Salary:

Not provided

Alliance Automotive UK LV Ltd

Expiration Date

Until further notice

Requirements

Typically requires a high school diploma or GED
Five (5) or more years of related experience or an equivalent combination
Excellent communication skills including written, verbal, and listening
Ability to multi-task and time management skills required
Excellent computer skills
Excellent negotiation skills
Strong product knowledge
Reliability, organization, and attention to detail required

Job Responsibility

Places customer orders via telephone, fax, email, electronic methods, or walk in (counter sales)
Influences Motion Industries' gross profit through negotiating the sale price and purchase price, within certain parameters
May adjust non-contract customer pricing to meet the demands of the customer based on competition, while maximizing the profit for Motion Industries
Builds customer relationships to drive repeat business by relating to the customer and drive process improvements
Orders items to ensure appropriate inventory levels are maintained for customers
May place orders without approval for orders up to $5,000 per line and $10,000 per purchase order
Expedites backorders
May pull inventory and prepare order for shipment to customer
Responsible for sourcing products in branch inventory, distribution center inventory or supplier inventory
Determines the most cost effective shipping method for customer orders

What we offer

options for healthcare coverage
401(k)
tuition reimbursement
vacation
sick pay
holiday pay

Fulltime

New

Pharmacy Technician

We’re building a world of health around every individual — shaping a more connec...

Location

United States , Meriden

Salary:

18.94 - 28.94 USD / Hour

CVS Health

Expiration Date

April 02, 2026

Requirements

Must comply with any state board of pharmacy requirements or laws governing the practice of pharmacy, which includes but is not limited to, age, education, and licensure/certification
If the state board of pharmacy does not address or mandate a minimum age requirement, must be at least 16 years of age
If the state board of pharmacy does not address or mandate a minimum educational requirement, must have a high school diploma or equivalent, or be actively enrolled in high school or high school equivalency program
Regular and predictable attendance, including nights and weekends
Ability to complete required training within designated timeframe
Attention and Focus
Customer Service and Team Orientation
Communication Skills
Mathematical Reasoning
Problem Resolution

Job Responsibility

Living our purpose by following all company SOPs at each workstation to help our Pharmacists manage and improve patient health
Following pharmacy workflow procedures at each pharmacy workstation (i.e., production, pick-up, drive-thru, and drop-off) for safe and accurate prescription fulfillment
Contributing to positive patient experiences by showing empathy and genuine care: creating heartfelt and personalized moments while serving patients at pick-up, drive-thru, and over the phone
keeping patients healthy by offering immunizations and other services at the register and over the phone
and demonstrating compassionate care by solving or escalating patient problems
Completing basic inventory activities, as permitted by law, and as directed by the pharmacy leadership team, such as accurately putting away medication deliveries and completing cycle counts, returns-to-stocks, waiting bin inventories, etc.
Contributing to a high-performing team, embracing a growth mindset, and being receptive to feedback
actively seeking opportunities to expand clinical and technical knowledge needed to better assist patients
Remaining flexible for both scheduling and business needs, while contributing to a safe, inclusive, and engaging team dynamic
voluntarily traveling to stores in the market to work shifts as needed by the business

What we offer

Affordable medical plan options
a 401(k) plan (including matching company contributions)
an employee stock purchase plan
No-cost programs for all colleagues including wellness screenings, tobacco cessation and weight management programs, confidential counseling and financial coaching
Benefit solutions that address the different needs and preferences of our colleagues including paid time off, flexible work schedules, family leave, dependent care resources, colleague assistance programs, tuition assistance, retiree medical access and many other benefits depending on eligibility

Parttime

New

Stationary Engineer II

Location

United States , Barrington

Salary:

30.15 - 45.25 USD / Hour

Advocate Health Care

Expiration Date

Until further notice

Requirements

Stationary Engineer license from the municipality of work location or Power Engineer certification (1st, 2nd, 3rd, 4th or 5th Class) from either the National Institute for the Uniform Licensing of Power Engineers (NIULPE) or the American Society of Power Engineers (ASOPE). Equivalent certifications from federal organizations such as the United States Navy will also be considered.
Advanced training beyond High School that includes the completion of technical training.
2-4 Years of Stationary Engineering
Moderate knowledge of applicable codes/regulations pertaining to assigned equipment and operations.
Proficient computer skills (e.g., software relating to CMMS, building automation, and Microsoft Office).
Good communication and interpersonal skills.
Must be able to sit, stand, walk, lift, squat, bend, crawl, reach above shoulders, and twist frequently throughout the workday.
Must be able to lift up to 15 lbs. from floor to overhead, lift up to 50 lbs. from floor to chest-level, lift and carry up to 50 lbs. at waist height a reasonable distance.
Must be able to push/pull with 50 lbs. of force.
Exposure to electrical and mechanical hazards and therefore knowledge of safety precautions.

Job Responsibility

Works within clearly defined standard operating procedures.
Operates all campus heating, ventilation and air conditioning (HVAC) equipment including boilers, steam absorption and centrifugal chillers, cooling towers, fans, pumps and systems in a manner that optimizes efficiency, safety, and occupant comfort per department policies and procedures with moderate level of guidance/assistance.
Maintains accurate records and reports on all equipment startup, failures, problems, work in progress and completed work through logbooks and computerized maintenance management system (CMMS) with moderate level of guidance/assistance.
Proficient level of skill to utilize BAS as a tool for both monitoring and controlling HVAC equipment. Responds to alarms in a timely and correct manner. Optimizes operation using trending reports as appropriate.
Proficient level of skill to perform preventive maintenance on HVAC and other equipment as assigned per established procedures including inspection, cleaning, lubrication, adjustment, testing, flushing, minor repairs, rebuilding and replacing parts/components to ensure that systems remain within the established operating parameters.
Proficient level of skill to troubleshoot issues with HVAC equipment determine the root cause in a timely manner. Executes repairs or installations with minimal impact to the hospital and patient care. Appropriately requests assistance as warranted by the situation.
Responds to building occupant complaints in a timely and professional manner and takes appropriate corrective action. Keeps requester appraised of the status of corrective action.
Maintains current daily logs, preventive maintenance records and equipment repair files to comply with local, state and federal regulatory requirements as directed.
Performs routine general maintenance including painting, plumbing, carpentry, equipment testing and repair, ventilation, lighting, electrical, grounds keeping and snow removal. Performs repairs on a large variety of facility systems such as mechanical, electrical, building systems and other critical systems with moderate level of guidance/supervision.
Provides timely and proper response to assigned service calls, work orders and preventative maintenance to maintain a safe and efficient environment. Documents all tasks and work time on the CMMS.

What we offer

Paid Time Off programs
Health and welfare benefits such as medical, dental, vision, life, and Short- and Long-Term Disability
Flexible Spending Accounts for eligible health care and dependent care expenses
Family benefits such as adoption assistance and paid parental leave
Defined contribution retirement plans with employer match and other financial wellness programs
Educational Assistance Program

Fulltime

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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