---
title: 'Staff Software Engineer, Backend (Cluj) at Cresta'
canonical: 'https://feeny.ai/job/staff-software-engineer-backend-cluj-cresta-cluj-be1y3va90vmq'
type: 'job'
last_seen: '2026-09-08'
---

# Staff Software Engineer, Backend (Cluj) at Cresta

- **Company:** Cresta
- **Location:** Cluj, Romania
- **Work type:** remote
- **Posted:** 2026-01-30
- **Last confirmed live:** 2026-09-08
- **Apply:** https://job-boards.greenhouse.io/cresta/jobs/5102480008

## Job description

Cresta unlocks the true potential of the customer experience, turning every conversation into a competitive advantage. Cresta’s unified AI platform combines conversational AI agents, real-time human agent augmentation, and comprehensive conversation intelligence to drive revenue and efficiency gains across every channel. The world’s leading companies, including United Airlines, Cox Communications, and Marriott, use Cresta to power world-class customer experiences every day.

Born from the Stanford AI Lab, Cresta has raised more than $270 million from the world’s leading investors, including a16z, Greylock, and Sequoia. Cresta’s leadership includes some of the leading minds in AI today. Our CEO, [Ping Wu](https://www.linkedin.com/in/pingwu/), founded and led Google's Contact Center AI and Vertex AI platforms before joining Cresta to build the future of AI-driven customer experiences.

Over the next few years, AI is going to redefine how people all over the world interact with businesses every day. Come build that future at Cresta.

Cresta is excited to expand our operations to Romania and build a tech hub in the region. These early joiners will play a key role in establishing our engineering team in Romania, helping to shape the future of the site. We are a remote-first environment, offering opportunities to work with a global team across Europe, the US, and Canada. Over time, we aim to create a co-working space in Romania, moving towards a hybrid environment.

About the role:

Cresta Insights: As a Staff full-stack engineer, with a backend focus, you will be at the forefront of shaping the future of customer engagement! As we work towards our vision, you'll be instrumental in delivering timely, actionable insights that drive business growth from day one. We're building a state-of-the-art Customer Data Platform, visualizing relevant insights for businesses post-onboarding and guiding customer engagement across all touch-points. Be part of the team that's redefining the way businesses connect with their customers!

Responsibilities:

- Design, implement, and maintain backend services and APIs to support applications.
- Build and optimize data storage solutions using Postgres, ClickHouse and Elasticsearch to ensure high performance and scalability.
- Collaborate with cross-functional teams, including frontend engineers, data scientists, and machine learning engineers, to deliver end-to-end solutions.
- Monitor and troubleshoot performance issues in distributed systems and databases.
- Write clean, maintainable, and efficient code following best practices for backend development.
- Participate in code reviews, testing, and continuous integration efforts.
- Ensure security, scalability, and reliability of backend services.
- Analyze and improve system architecture, focusing on performance bottlenecks, scaling, and security.

Qualifications We Value:

- Proven experience as a Backend Engineer with a focus on database design and system architecture.
- Strong expertise in ClickHouse or similar columnar databases for managing large-scale, real-time analytical queries.
- Hands-on experience with Elasticsearch for indexing and searching large datasets.
- Proficient in backend programming languages such as Python, Go.
- Experience with RESTful API design and development.
- Solid understanding of distributed systems, microservices architecture, and cloud infrastructure.
- Experience with performance tuning, data modeling, and query optimization.
- Strong problem-solving skills and attention to detail.
- Excellent communication and teamwork abilities.

Conclusion:

Compensation for this position includes a base salary, equity, and a variety of benefits. Actual base salaries will be based on candidate-specific factors, including experience, skillset, and location, as well as applicable local pay requirements. We are actively hiring for this role in Romania, the US, and Canada. We have noticed a rise in recruiting impersonations across the industry, where scammers attempt to access candidates' personal and financial information through fake interviews and offers. All Cresta recruiting email communications will always come from the @cresta.ai domain. Any outreach claiming to be from Cresta via other sources should be ignored.  If you are uncertain whether you have been contacted by an official Cresta employee, reach out to recruiting@cresta.ai

## About Cresta

## Company Overview
- **One-liner**: Cresta is the generative AI platform for customer experience, unifying human and AI agents to drive measurable business outcomes for the world's largest enterprises.
- **Entity Type**: Private (Series D, $125M raised in 2024)
- **Headquarters**: Sunnyvale, California, USA (with additional offices in San Francisco, New York, Toronto, London, Berlin, Bucharest, Cluj-Napoca, Tokyo, Taipei, Melbourne)
- **Founded**: 2017
- **Founders**: Zayd Enam, Sebastian Thrun, Tim Shi

## Core Business
- **Primary industry**: Generative AI for Customer Experience (CX) / Contact Center AI
- **Target customers**: Enterprise (Fortune 500), B2B; verticals include customer service, sales, collections
- **Mission or purpose statement**: "Turn every conversation into a competitive advantage" by combining the best of human intelligence and AI.

## Products & Services
- **Cresta AI Agent**: Autonomous voice and digital agent that resolves customer conversations end-to-end (SaaS/AI agent).
- **Cresta Agent Assist**: Real-time AI guidance, suggestions, and knowledge for human agents during live conversations (SaaS).
- **Cresta Conversation Intelligence**: AI that analyzes 100% of conversations to surface insights, behaviors, and revenue opportunities (SaaS).
- **Cresta Knowledge Agent**: Proactive, real-time answers from enterprise knowledge bases delivered to agents (SaaS).
- **Cresta Quality Management**: Automated QA across 100% of contact center conversations (SaaS).

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed
- **Key Metric**: Total funding raised $270M+ (as of 2026)
- **Notable Investors**: Sequoia, Greylock, a16z, Tiger Global, World Innovation Lab (WiL)
- **Growth Signals**: 
  - 600+ employees across 10+ global hubs
  - Expanded into APAC and EMEA markets in 2025
  - Partnerships with TELUS Digital (June 2026) and New York Mets (June 2026)
  - Launched Conductor (AI agent development tool) in June 2026
  - Reported 20% higher revenue and 30pt NPS improvement for customers

## Competitive Advantages
- **Real-time transformer-based models** deployed at scale since 2018 (Intuit was first customer)
- **Patented conversational AI technology** (multiple patents secured)
- **Unified platform** that combines AI agents, human agent assist, and conversation intelligence
- **Human-centric AI approach** differentiating from pure automation players
- **Fortune 500 trust** and deep enterprise integrations

## Strategic Focus
- **Accelerate adoption of human-centric agentic AI** across global enterprises
- **Expand globally** with new hubs in APAC and EMEA
- **Continue product innovation** (e.g., Conductor for AI agent development, voice AI enhancements)
- **Deepen partnerships** with system integrators and telcos

## Why Work Here
- **Mission-driven culture**: "Mission is the boss" – decisions align with company goals, not hierarchy
- **Flexible work**: Hybrid model with many fully remote roles; offices in major cities worldwide
- **Global team**: 10+ hubs across North America, Europe, Asia, and Australia
- **Perks & benefits**: Multiple medical/dental/vision plans, inclusive parental leave, generous time-off policy, workspace support, learning opportunities (hackathons, guest speakers)
- **Growth mindset**: Autonomy, high-impact roles, and continuous learning encouraged
- **Engineering culture**: Strong emphasis on AI/ML, real-time systems, and building at scale

## Sources
1. [Cresta Careers Page](https://cresta.com/careers)
2. [Cresta About Page](https://cresta.com/about-us)
3. [Cresta Official Website](https://cresta.com/)
4. [Cresta Greenhouse Jobs](http://job-boards.greenhouse.io/cresta)

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