Senior Software Engineer Backend

Aera Technology

Aera Technology

Software Engineering

Cluj-Napoca, Romania

Posted on May 25, 2026
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Aera Technology is the Decision Intelligence company. We deliver innovation and services that enable enterprises to operate sustainably, intelligently, and efficiently. Our platform, Aera Decision Cloud™, integrates with your existing systems to digitize, augment, and automate decisions in real time. Aera helps enterprises around the world transform decision making – delivering millions of recommendations that have resulted in significant revenue gains and cost savings for some of the world’s best-known brands.
We’re looking for a talented Senior Software Engineer to join our world-class engineering team and become instrumental in the development and architecture of our enterprise cloud platform. As a Senior Software Engineer/Tech lead you will collaborate with other architects, designers, product managers and software developers to influence product direction and functional requirements, and deliver complex high performance, scalable software products and APIs.

Responsibities:

  • Design, build and maintain efficient, reusable, and reliable code and automation

  • Use AI-enabled engineering practices to enhance code quality, automate repetitive work, and accelerate development/testing/documentation.

  • Collaborate with cross-functional teams to influence product direction and define functional requirements.

  • Identify opportunities for technical and product innovation, and proactively design solutions that elevate system performance and user experience.

  • Gain in-depth knowledge of the owned modules and maintain a comprehensive understanding of the end-to-end flows and modules that interact with them from a business point of view.

  • Deliver highly scalable, robust, and performant APIs and software products.

  • Identify and resolve technical challenges to ensure high-quality software delivery.

  • Mentor junior team members and contribute to a culture of engineering excellence

  • Participate in design and code reviews

  • Identify bottlenecks and bugs in applications, and devise solutions to ensure the best possible performance, quality, and responsiveness of the applications

About you:

    • 8+ years of experience working in Java, server-side development, with a proven track record of delivering great software

    • Adopter of modern LLM tools for Java backend development

    • You can discuss design patterns, memory management and performance optimization.

    • Experience with working on Spring Boot, ORM Frameworks, Microservices and REST APIs, GIT, Gradle and Linux platforms

    • Experience with modern design approaches like Event Based Design, Component-Based Design, SOLID, KISS, DRY, YAGNI, Clean Code.

    • Experience with SQL development, data modeling, and complex data structures for high-volume and high-velocity data

    • Hands-on experience with frameworks such as JUnit, TestNG, Mockito

    • Experience with Docker and Kubernetes is a strong plus

    • Working knowledge in AWS, Kafka, Apache Spark, Elastic search, REDIS, ELK

    • Experience building secure, complex, and scalable APIs, from design through deployment

    • Solid understanding of writing and delivering testable quality code, from the ground up

    • Experience with streaming data and complex event processing systems

    • Have a positive energy and enthusiasm - cultural fit is a big deal for us, we’re looking for smart people who are excited about solving big problems and are self-motivated to get things done

    • Are organised and have a professional attitude to work - You’re a good communicator, you are pragmatic, and you know how to build trust

At Aera, our purpose is to enable a sustainable, efficient, and intelligent world with Cognitive automation. Our Decision Cloud is increasingly used by the world's largest companies to fundamentally transform their and how work is done.
If you share our passion for building a sustainable, intelligent, and efficient world, you’re in the right place. Established in 2017 and headquartered in Mountain View, California, we're a series D start-up, with teams in Mountain View, San Francisco (California), Bucharest and Cluj-Napoca (Romania), Paris (France), Munich (Germany), London (UK), Pune (India), and Sydney (Australia). So join us, and let’s build this!
Aera Technology is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender perception or identity, national origin, age, marital status, protected veteran status, or disability status.
Benefits Summary
At Aera Technology, we strive to support our Aeranauts and their loved ones through different stages of life with a variety of attractive benefits, and great perks. In addition to offering a competitive salary and company stock options, we have other great benefits available. You’ll find comprehensive medical coverage with a subscription to one of the main private healthcare clinic networks(Regina Maria), paid leave of 25 days/year, remote work reimbursement/ a monthly teleworking allowance, and much more. We offer access to online professional courses for both professional and personal development, via Udemy, coupled with people manager development programs. We believe in a flexible working environment, to allow our Aeranauts to perform at their best, ensuring a healthy work-life balance. When you’re working from the office, you’ll also have access to a fully-stocked kitchen with a selection of snacks and beverages.
Aera Technology respects the privacy of your data. Please take the time to read our European GDPR privacy candidate notice available here.
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