Senior Backend and Infra Engineer



Senior Backend and Infra Engineer

RingCentral Bulgaria is a new European branch of an American company RingCentral.  JettyCloud is a software R&D center that works for RingCentral. Due to our long-term partnership, we help the company to find talented engineers who will work on #1 cloud communications solution.

RingCentral builds a high-available cloud-based contact center that combines all kinds of telephony features and many digital communication channels with customers (WhatsApp, Facebook, Twitter, email, SMS, etc.) into one service. We develop a modern and reliable product that helps companies be closer to their customers and respond to their requests as quickly and efficiently as possible. 

We are looking for a Senior Backend and Infra Engineer that will work on a variety of exciting projects with responsibility for designing and delivering secure, distributed, scalable and fault tolerant services, end-user applications and APIs.

In this role, you will have an opportunity to use your engineering expertise & leadership in the delivery of cloud-hosted (AWS) SaaS systems.

You will work on complex, event driven services adhering to agile engineering practices and processes with a strong focus on automation.
You should be motivated, organized, excited about technology and SaaS products, a thorough critical thinker, and relentless when it comes to code quality, scalability, latency, and platform stability. Our culture is motivational, constructive, and positive.

We value teamwork, camaraderie, and collaboration. If you’re up for a fun challenge, we want to hear from you!

What to do

  • Work with architects and other stakeholders on polishing requirements, suggest technical solutions, and provide feasible estimates. 

  • Transfer requirements into implementation that is focused on efficiency and quality. 

  • Be an owner of solutions implemented, actively support them from the proof of concept through production deployment.

  • Focus not only on development but on running software in production. Be proactive in defining monitoring/alerting specifications, enhancing observability and traceability of all production flows. 

  • Provide mentorship to junior team members, become a center of competence on every part of the product you contribute to.

  • Participate in code reviews and other efforts to maximize quality of Engage products.

  • Be ready to provide technical assistance and guidance to service engineering teams that answer customer requests.

  • Work in a distributed team spanning across multiple time zones.


  • Bachelor's degree in Computer Science, Engineering or a related field orequivalent, is required. 

  • 8+ years in an engineering software development role building backend services and APIs.  

  • Proven track record in delivery of event-driven, highly available, scalable,resilient enterprise grade commercial cloud services. 

  • Proficiency in developing Java applications. Advanced knowledge of Java Core, Collections, Multithreading & Java Memory Model, Garbage collection - Deep understanding of micro services architecture paradigm, event drivensystem design, distributed systems, eventual consistency principles.

  • Experience developing REST services: REST manifesto, stateful/statelessservices, load balancing strategies.

  • Strong RDBMS skills: writing advanced queries, designing table structure /indexes / triggers, query optimization / query plan analysis.

  • Experience with at least one public cloud platform, preferable with AWS.

  • Hands on experience in K8S: kubectl, K8S types, Helm.

  • Hands on experience with Jenkins pipeline.

  • Familiarity with Cloud based CI/CD methodologies. 

  • Hands on experience deploying applications using Kubernetes - Experience with at least one public cloud platform, preferable with AWS - Experience working with Kafka or other messaging queues.

Nice to have

  • Experience with internet telephony.

  • Experience with API-first driven development. 

  • Experience in Python or Golang programming. 

  • Experience with NoSQL. 

  • Experience with AWS-native technologies (S3, DynamoDB, Athena, EC2) is a plus.

We offer

  • Relocation to Bulgaria, Sofia.

  • Relocation bonus (tickets+accomodation).

  • Well-coordinated professional team.

  • Cutting edge technologies, interesting and challenging tasks, dynamic project, great opportunities for self-realization, professional and career growth.

  • Flexible working hours and opportunity for a hybrid work.

  • Job placement and payment of salary take place according to the labor code, as well as vacation and sick lists.

  • Competitive base salary and bonus paid quarterly.

  • Medical insurance.

  • 25 days’ vacation.

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