Senior Software Engineer

Bulgariasenior

Software EngineerSoftware Engineering

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Quick Summary

Key Responsibilities

Designing and implementing new functionalities while maintaining and optimizing existing ones. Ensuring high code quality through rigorous testing (unit, integration) and peer code reviews.

Technical Tools

Software EngineerSoftware Engineering

At Appfire, we believe that great work happens when people get to choose how they work. After 20 years of creating software that empowers teams to break silos and collaborate seamlessly, we've learned that one size does not fit all. We’re a team of 800+ employees, working remotely across 28 countries. Our flagship products include: Appfire Flow, JXL, Comala Document Management, 7Pace Time Tracker, Jira Misc Workflow Extensions, and BigPicture.

Here you can read some of our customer stories: https://appfire.com/resources/resource-library/customer-stories

About the Role

~1 min read

Appfire is looking for a Senior Java Software Engineer to help evolve a modern, cloud-based SaaS platform. You’ll design new backend functionality, optimize existing services, and support systems used by thousands of tenants. This role reports to the Senior Manager of Engineering and works cross-functionally with product, UX, and frontend partners to deliver reliable, well-tested SaaS solutions.

You can choose to work remotely from anywhere in Bulgaria.

Responsibilities

~2 min read

→Designing and implementing new functionalities while maintaining and optimizing existing ones.
→Ensuring high code quality through rigorous testing (unit, integration) and peer code reviews.
→Collaborating with Product Owners, UX/UI designers, and frontend teams.
→Solving performance-related challenges to ensure system stability and speed.
→Contributing to technical discussions and helping the team solve production issues.
→Actively utilizing AI-assisted developer tools (e.g., Cursor, Claude Code) to boost daily productivity and participating in the technical implementation of AI-driven product features.

Technical Highlights:

→Add your value to a complex yet well-designed application, having over 100 modules and fully-fledged Domain-Driven Design (ubiquitous language, aggregates, domain events etc.)
→Practice your craftsmanship in good design (clean code, SOLID, Inversion of Control) and in various architectures (hexagonal, event-driven, pipes&filters, modular monoliths, microservices and more)
→Thoroughly test what you build: with unit, integration and e2e tests (Spock, JUnit, Mockito, AssertJ, REST Assured, WireMock, Testcontainers, Cypress)
→Learn our advanced cloud (SaaS) architecture: serving thousands of tenants (multitenant architecture), continuously monitored and profiled (ELK, async-profiler), and with state of the art release process (feature flags, canary releases). We use AWS and GCP. Help us advance our cloud architecture further
→Practice other cool approaches and tools like reactive programming, Event Sourcing, Apache Kafka or Redis
→Enhance your engineering workflow by adopting state-of-the-art AI tools for code generation, refactoring, and debugging, while working on cutting-edge AI integrations
→Feel safe with our extensive CI process that automatically runs unit, integration, e2e, architecture, migration and performance tests on your commit

Solid Java Foundation: Strong practical knowledge of Java, Spring, Hibernate, and SQL.
Clean Code & Patterns: A good understanding of SOLID principles and common design patterns to keep the codebase maintainable.
AI & Modern Tooling: Hands-on experience working with AI coding assistants (like Cursor) and an eagerness to implement modern AI solutions (e.g., LLM integrations, RAG) into the product.
Testing & Tools: Proficiency in JUnit/Spock, Git, Maven, and Docker.
Production-Ready Mindset: Experience in evolving and scaling established systems (beyond just greenfield projects) and a focus on long-term code maintainability.
Performance Awareness: Ability to use profiling tools and a focus on writing efficient code that performs well under load.
Cloud Basics: Understanding of SaaS architecture and cloud environments (AWS or GCP).

You are dedicated to elevating client and co-worker experiences, knowing that exceptional work centers on serving others.
You adapt swiftly to new business demands, understanding that change fuels collective and individual growth.
You excel in communication, effectively connecting in remote/hybrid environments using tools like Slack, Zoom, and G Suite and through occasional in-person events.
You have exceptional coaching, mentoring, and people development skills.

What We Offer

~2 min read

✓Equity - Every Appfire team member is eligible for company equity, fostering a true sense of ownership and connection to our growth

✓Paid time off - 25 paid days off regardless of your years of tenure. Increases to 30 days of annual leave per year after 5 years of employment24 hours of paid volunteer time to engage in meaningful activities outside of work

✓Training and personal development - Grow with Appfire University — our custom, on-demand learning platform designed to support your continuous development

✓Health insurance - Private health insurance through UNIQA, fully paid by the company

✓Multisport Card - The card is fully covered by Appfire

✓Transport Card - Sofia City Transport Card, fully paid by Appfire, providing access to all modes of public transportation within the city

✓Food vouchers - Pre-paid Pluxee lunch card with a monthly budget of 102,26 EURO

✓Baby Bonus - To celebrate new additions to the family, employees receive a one-time net bonus of 511 EURO upon the birth of a child

✓Volunteering - 3 fully paid days each year to participate in Appfire Town, our Corporate Social Responsibility (CSR) program supporting local communities

✓Flexibility - The role is fully remote within Bulgaria, with the option to work from our Sofia office.

Appfire has been consistently recognized for company growth, culture, corporate social responsibility, and product excellence and has been included among the Deloitte Technology Fast 500, Inc. Best Workplaces, BuiltIn Best Places to Work, and Inc. 5000. Learn more about our accomplishments, which would not be possible without our team members, partners, and customers: https://appfire.com/awards.

Appfire is an equal opportunity employer and does not discriminate based on race, color, religion, sex (including pregnancy), sexual orientation, gender identity or expression, national origin, age, disability, genetic information, marital status, veteran status, or any other protected characteristic as defined by applicable law. Our commitment extends to all employment practices, including recruitment, hiring, training, promotion, compensation, benefits, and termination.