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Backend Engineer

Backend Engineer

Staff Software Engineer (JAVA)

Conga

Sofia

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Описание вакансии

A career that’s the whole package!
At Conga, we’ve built a community where our colleagues can thrive. Here you’ll find opportunities to innovate and support growth through individual and team development, all within an environment where every voice is heard.

Conga
lines up commercial operations so companies run as connected, smarter businesses. By unifying the people and processes that drive commerce, Conga aligns pricing, quoting, contracting, rebates, and communications so teams stay in sync and buyers keep moving forward. The result is trusted decisions, consistent buyer experiences, and profitable growth. More than 10,000 customers worldwide, including over 50% of the Fortune 100®, trust Conga when commercial complexity is high and global impact is on the line.

Job Title:
Staff Software Engineer

Locations:
Sofia, Bulgaria

Reports to:
Manager, Product Development

A career that’s the whole package!
At Conga, we’ve built a community where our colleagues can thrive. Here you’ll find opportunities to innovate and support growth through individual and team development, all within an environment where every voice is heard.

Conga
accelerates the customer’s journey to becoming a more connected and intelligent business. The Conga Advantage Platform is recognized worldwide for enhancing this journey, bringing together Configure, Price, Quote, Contract Lifecycle Management, and Document Automation capabilities on a single open platform. It integrates seamlessly with any ERP, CRM, and Cloud. Powered by a unified data model and purpose-built AI, Conga helps companies achieve a unique advantage—one built on seamless connection, actionable intelligence, and scalable growth.

Our approach
is grounded in the Conga Way, a framework that encapsulates our values and drives everything we do as an organization—from hiring to decision-making and product development to colleague programs. Created with direct input from our colleagues, the Conga Way forms the foundation of our vibrant culture.

A quick snapshot
…
As a Staff Software Engineer at Conga, you'll help shape the architecture and technical direction of our cloud-native platform. You'll design and build highly scalable, resilient backend services that power mission-critical revenue operations for enterprise customers worldwide. Working closely with engineering leaders, architects, and product teams, you'll drive technical excellence, mentor engineers, and influence key architectural decisions across our distributed systems ecosystem.

Why it’s a big deal…
Conga's platform supports some of the most critical business processes for global organizations, including pricing, contracting, and revenue management. The systems you design and build must handle high volumes of data, deliver exceptional reliability, and scale as our customers grow. As a Staff Engineer, your impact extends beyond individual services. You'll help define engineering standards, shape platform architecture, and influence how our teams build secure, scalable, and high-performing solutions that power the future of Conga's products.

Here’s What We’re Looking For…

  • 5+ years of experience developing large-scale, complex applications with Java
  • Strong expertise in backend development, including multi-threading, messaging, streaming, performance optimization, and horizontal scalability
  • Solid experience building REST APIs and backend services
  • Hands-on experience with Cassandra and other NoSQL databases
  • Strong knowledge of Redis, including caching and stream-based workflows
  • Experience with cloud platforms, especially Microsoft Azure
  • Strong understanding of distributed systems, microservices architecture, and event-driven design
  • Solid understanding of OOP, design patterns, SOLID principles, and clean architecture
  • Awareness of algorithmic complexity and Java data structures
  • Experience with SQL and NoSQL databases
  • Familiarity with Agile methodologies such as Scrum or Kanban
  • Experience with BDD/TDD practices
  • Familiarity with CI/CD tools such as Jenkins, GitHub Actions, or similar
  • Working knowledge of Git, Jira, and Confluence
  • Experience with Docker and Kubernetes
  • Excellent analytical, problem-solving, and communication skills
  • A proactive mindset and willingness to learn and work across backend technologies

Nice To Have (Advantage)

  • Experience leveraging AI-assisted development tools (e.g., GitHub Copilot, ChatGPT, or similar) to improve productivity, code quality, or development workflows
  • Experience with Java 21 and/or Dropwizard
  • Familiarity with OpenSearch or Elasticsearch
  • Experience with Azure Service Bus, Redis Streams, or similar messaging technologies
  • Experience with AKS, Helm, or other Azure deployment tooling
  • University degree in Computer Science or a related field

Here’s What Will Give You An Edge…

  • Design and develop backend services in Java for a cloud-native, microservices-based platform with a strong focus on scalability, performance, resiliency, and maintainability
  • Build reusable backend services and distributed system capabilities that support real-time pricing and related business operations
  • Work with Cassandra, Redis, Azure, and event-driven patterns to deliver reliable, high-throughput backend solutions
  • Collaborate with a talented international team of engineers, product managers, and architects to define system functionality and plan future sprints
  • Partner with tech leads and architects to align implementations with industry best practices and company standards across the backend layer
  • Contribute to backend architecture decisions, service design, and data handling patterns
  • Participate in code reviews, pair programming, and knowledge sharing across the engineering team
  • Provide technical mentorship to junior engineers, guiding them in best practices, design decisions, and professional growth
  • Conduct technical research to solve complex problems and drive continuous improvement across backend technologies
  • Contribute to and maintain technical documentation
  • Develop unit, integration, and service-level tests, and collaborate with QA to ensure end-to-end quality
  • Work closely with the DevOps/Cloud Services team to support deployments and troubleshoot production issues
  • Help improve engineering processes, delivery practices, and operational reliability across the platform

Did we pique your interest?
If this sounds like the kind of job you would love in the kind of environment where you would thrive, please click apply. We'd love to hear from you!

Preferred Resume Format
We accept resumes in any format, we suggest using PDF or plain text. These formats help ensure that your resume’s formatting remains intact, making it easier for our recruiters to review your application promptly.

Don’t meet every requirement for the role?

Studies have shown that women and members of ethnic minorities are less likely to apply to jobs unless they meet every single qualification. At Conga we are dedicated to building a diverse, inclusive, and authentic workplace, so if you’re excited about this role but your experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply anyway. You just might be the right candidate for this or other roles.

Additional Information

Conga is proud to be an Equal Opportunity Employer and provides equal employment opportunities to all employees and applicants regardless of race, color, religion, gender, gender identity, age, national origin, disability, parental or pregnancy status, marriage and civil partnership, sexual orientation, veteran status, or any other characteristic protected by law. We understand interviewing can be stressful for those with disabilities. If reasonable accommodation is needed to allow you to show us your best self, please let your recruiter know as soon as possible. All your information will be kept confidential according to EEO guidelines. Conga is not open to third party solicitation or resumes for our posted FTE positions. Resumes received from third party agencies that are unsolicited will be considered complimentary.

Conga's Applicant Privacy Statement
The information you provide during the application process will be used in accordance with Conga’s Applicant Privacy Statement (https://conga.com/applicant\-privacy\-statement). By submitting your application, you acknowledge and agree to the terms outlined in this privacy statement.

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Backend Engineer

Data Engineer with Python

EPAM Systems

Sofia

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Описание вакансии

We are seeking an experienced and highly motivated
Data Engineer
to join our expanding Data Engineering practice.

This role will enhance one of our established Platform Teams, where you will design, construct, and scale data pipelines using Databricks with PySpark on Microsoft Azure, enabling our AI Factory teams to create and deploy advanced machine learning solutions.

This position offers a unique opportunity to work at the crossroads of big data, cloud frameworks, and MLOps, delivering durable, scalable, and efficient data platforms that promote innovation throughout the organization.

Responsibilities

  • Design analytical solutions using Cloud Native, Big Data, and NoSQL technologies
  • Build scalable data pipelines with Databricks and PySpark on Azure
  • Collaborate with MLOps and ML Engineering teams to deliver robust data platforms for AI model development and deployment
  • Work alongside architects, technical leads, and cross-functional teams to align solutions with business objectives
  • Assist the SAP Platform Team in utilizing SAP BTP and hyperscaler services for enterprise-grade data platforms
  • Conduct and participate in code reviews to ensure adherence to technical standards and best practices
  • Mentor junior engineers to cultivate an innovative and high-performance engineering culture
  • Implement CI/CD practices into data workflows using tools like Jenkins, GitLab CI/CD, and Concourse
  • Facilitate communication with stakeholders to understand business processes, model input data, and deliver aligned solutions

Requirements

  • Minimum of 2 years' experience in Software Engineering with a solid background in Data Engineering, Machine Learning Operations, or Machine Learning
  • Expertise in Python and PySpark
  • Familiarity with Databricks and Microsoft Azure cloud services
  • Strong knowledge of software version control tools like GitHub or Git
  • Background in CI/CD tools such as Jenkins, GitLab CI/CD, or Concourse
  • Proven capability to deliver scalable, robust, and highly available data solutions
  • Competency in problem-solving, analytical thinking, and managing stakeholder relationships

Nice to have

  • Skills in another programming language such as Java, SQL, or Scala
  • Understanding of SAP BTP or comparable enterprise data platforms
  • Background in agile development methodologies

We offer

  • Opportunity to Engineer your Future and to drive the world’s digital transformation with top industry clients
  • Personal development program that will allow you to be valued for your strengths
  • Wide range of professional trainings and workshops
  • Being part of a collaborative, fast-growing, and innovative design team
  • Established and accelerated growth toward different career paths, competencies, and roles
  • Broad projects variety and possible mobility between projects over the time
  • Collaboration in a multicultural environment and exchange of best practices with colleagues around the world
  • Varied social benefits, Sports, Transportation and Health programs
  • Work-life balance and flexible schedule, team buildings and sport opportunities
  • Modern office/collaboration spaces (incl. new Infinity Tower business center, Sofia)
  • Hybrid By Design - we provide you with the best productivity options from the 2 worlds. Meet, socialize and enjoy F2F time with your colleagues, while working from the modern EPAM's office for a few days per week and benefit from the EPAM's virtual working environment - making you able to be productive and work from remote for the rest of the week

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Backend Engineer

Java Developer (Mid/Senior)

Amusnet

Sofiasenior

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Описание вакансии

Software Engineer (Java)

Location:

Sofia, BG, 1766

Work Model: Hybrid

Amusnet is a leading provider recognized for offering the best-performing products and innovative solutions in gaming globally. With a portfolio of 300+ casino games, our company delivers engaging online entertainment across 2,000+ websites in 35+ markets. The dedication to innovation and technology also extends to the production of premium slot cabinets, where our games seamlessly integrate with cutting-edge hardware solutions. We continue to expand our network of offices, and our team now consists of 1,300+ industry professionals. As we grow, we're looking for Software Engineer (Java)!

Currently, we are looking for a Java Software Engineer to join our team! We need your bright mind and your experience to help us move our products forward, in our adventure of building the first Cloud-native system for delivering our gaming content, world-wide. The future of iGaming is here, and it's more exciting than ever!

The Perfect Team Member Is Inspired To

  • Designing, developing, and maintaining Java-based micro-services
  • Collaborating with cross-functional teams to define, design, and ship new features, as well as working with software architects to improve the performance and scalability of the software
  • Writing clean, efficient, and well-tested code
  • Participating in code reviews to ensure code quality
  • Identifying and troubleshooting bottlenecks and bugs in the software
  • Continuously discovering, evaluating, and implementing new technologies to maximize development efficiency
  • Mentoring and guiding other developers and architects on the team

The Skills That Will Grab Our Attention

  • A determined, focused team player who is able to communicate effectively with both technical and non-technical stakeholders
  • Must be self-motivated and flexible with a can-do attitude and capable of working under pressure and independently in a fast-paced and dynamic environment
  • Knowledge of agile software development methodologies, such as Scrum or Kanban
  • Experience with object-oriented programming, with a strong understanding of Java and related technologies (Gradle or Maven, Micronaut / Spring Boot)
  • Experience in API Design, including REST and GraphQL
  • Experience with relational databases (PostgreSQL or MySQL) as well as proficiency in SQL and Hibernate or JOOQ
  • Experience in developing and maintaining frontend components corresponding to the backend APIs
  • Familiar with containerized environments using technologies such as Docker and Kubernetes
  • Knowledge and/or experience in cloud platforms such as AWS or GCP is considered an asset
  • Appreciation of system performance and scalability
  • Basic knowledge of frontend technologies (HTML, Typescript, Angular or React) is considered an asset
  • Proficiency in English, both verbal and written

The Reasons To Join Our Team

  • Excellent remuneration package
  • Performance-based bonuses
  • Private health insurance
  • Card for Public Transportation
  • Multisport card
  • Corporate discounts
  • Parking – early bird option
  • 25 days of annual paid leave
  • Performance review process
  • Internal & external training programs
  • Team buildings & local company events
  • Work-life balance
  • Inspiring & supportive colleagues
  • Culture that encourages creativity & talent

If you are interested, please send us your CV.

All applications will be treated strictly confidential.

Only short-listed candidates will be contacted.

Thank you for applying!

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Backend Engineer

Senior Backend Developer

Danfoss

Sofiasenior

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Описание вакансии

The Impact You'll Make
Danfoss Group IT is seeking an
experienced developer
to forefront our integration initiatives and drive the continued improvement of our application portfolio in
Azure cloud.
In this pivotal role, you will be responsible for designing, developing, and deploying robust and scalable enterprise-level integrations.

You will be part of the Digital Customer Experience (DCE) team, with more than 125 international colleagues, where we develop, support, and lead the digital customer experience in Danfoss. We connect business needs and IT into digital solutions.

If you are passionate about building innovative solutions on Azure and have a proven track record of delivering high-quality results, we encourage you to apply with your cv in the English language.
The position is open in our locations in Slovenia, Croatia, Poland and Romania.
The job shall be hybrid.
What You’ll Be Doing

  • Design and implement event-driven integrations (Azure Event Grid and Azure Service Bus) and serverless functions following MACH principles.
  • Utilizing Azure CDN to serve assets and ensure the best possible user experience.
  • Develop and maintain Infrastructure as Code (IaC) solutions using Bicep.
  • Ensure adherence to Microsoft Azure security best practices and industry standards including access controls, data encryption, and vulnerability management.
  • Establish and maintain a robust CI/CD pipeline using Azure DevOps to automate the build, test, and deployment processes.

What We're Looking For

  • Proven professional experience in Azure integration technologies, including Azure Functions, Azure Event Grid, Azure Service Bus, and Azure API Management.
  • Strong proficiency in .NET development and C#.
  • Solid understanding of serverless architectures and cloud-native principles.
  • Expertise in Infrastructure as Code (IaC) using Bicep or Terraform.
  • Experience with CI/CD pipelines and tools like Azure DevOps.
  • Deep knowledge of security best practices and compliance standards.
  • Strong communication and collaboration abilities.
  • Proficiency in spoken and written English.

What You'll Get From Us

  • We promote from within and support your learning with mentoring, training, and access to global opportunities.
  • You’ll have flexibility, autonomy, and support to do your best work while maintaining a healthy work-life balance. Your well-being matters to us.
  • We strive to create an inclusive work environment where people of all backgrounds are respected, and valued for who they are.
  • Together with your employment we provide non salary benefits that we share with your during the recruitment process.

Ready to Make a Difference?
If this role excites you, we’d love to hear from you! Apply now to start the conversation and learn more about where your career can go with us.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or other protected category

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Backend Engineer

Integration Engineer (AWS)

wherewework Jobs

Sofia

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Описание вакансии

wherewework.bg от името на:

Technology & Software Employers in Bulgaria
Interested in Integration Engineer (AWS) jobs in Bulgaria? You're in the right place.

Integration and release engineering are increasingly important in Bulgaria in 2026 as delivery pipelines grow more automated and interconnected. Sofia holds most openings, and the roles are common in companies running complex, multi system environments. Employers span consultancies and product engineering teams.

To move forward, simply upload your CV to wherewework, and we'll help connect you with real Integration Engineer (AWS) openings from real companies, including the position you're viewing right now.

Here's how it works:

  • Upload your CV once. Click "Apply" in this window. It only takes a moment, and allows us to match your profile with relevant Integration Engineer (AWS) opportunities.
  • We match you with real roles that fit your experience. When companies open Integration Engineer (AWS) positions aligned with your skills, we'll identify the best opportunities for you.
  • You stay fully in control. Before your CV is ever shared, we'll notify you with the exact job title and company name, and ask for your confirmation.
  • Only confirmed applications are sent to employers. Once you approve, the employer receives your application and may contact you directly.

For Integration Engineer (AWS) roles in Sofia, salaries typically range from 2,500 EUR to 4,000 EUR gross per month, with an average gross salary of around 3,250 EUR. Automation across CI and CD pipelines and experience integrating complex systems support the higher end.

While you're here, explore wherewework to discover what it's really like to work at Bulgaria's top technology companies, through interview experiences, employee reviews, and community feedback.

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Staff Software Engineer (JAVA)Conga · Bulgaria

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