We are looking for a Mid Software Engineer (Java) to join a project with one of our clients. The client has been established for over 10 years, is part of an international group, and develops its own product portfolio across several key areas, including Accounting, Compliance, Healthcare, among others.
You will work on an internal product (invoicing solution), enhancing its digital capabilities and integrating it with different standards.
This role involves full-stack development with end-to-end ownership — from product design and customer needs to cloud infrastructure and production operations — in a fast-paced, agile environment.
Responsibilities:
- Design and develop scalable and maintainable software solutions.
- Contribute to backend development using Java and modern frameworks.
- Ensure code quality through testing, refactoring, and adherence to best practices.
- Collaborate with product managers, designers, and engineers to define and deliver new features.
- Translate business requirements into effective and well-structured technical implementations.
- Participate actively in agile ceremonies and sprint planning.
- Contribute to documentation, troubleshooting, and continuous improvement of processes and systems.
Requirements
- 3+ years of experience in Java development, ideally with Spring Boot;
- Good understanding of API design (REST, OpenAPI);
- Experience working with microservices or modular distributed systems.
- Hands-on experience with message queuing systems such as AWS SQS/SNS or GCP Pub/Sub (knowledge of one is sufficient).
- Solid experience with relational databases (Oracle, PostgreSQL);
- Experience supporting or maintaining CI/CD pipelines, using tools like GitLab or Jenkins.
- Comfortable with common development tools — Git, Maven, IntelliJ IDEA.
- Working knowledge of cloud environments (AWS or GCP) and containerization (Docker/Kubernetes).
- Experience with Infrastructure as Code (Terraform, AWS CDK, Pulumi, Ansible, or Helm).
- Experience working in Agile teams with a collaborative.
- Excellent communication skills and fluency in English.
Benefits
- Employment Contract;
- Health Insurance;
- Meal Card;
- Gym Ticket;
- Hybrid Work (Porto - Portugal)
Top Skills
What We Do
Alongside | Build Great Products with Great Teams
Alongside helps VC-backed start-ups, scale-ups and digital-first enterprises accelerate their roadmaps by assembling elite, time-zone-aligned teams of software engineers, product managers and UX/UI designers, often in under 14 days. Our Porto HQ sits in Europe’s fastest-growing tech hub and taps a vetted global talent pool that lets you ship faster, reduce burn and stay laser-focused on product-market fit.
Why high-growth companies choose Alongside
• Top 1 % practitioners: rigorously screened full-stack, mobile, blockchain & AI/ML engineers, plus senior designers and product leaders. 
• Flexible engagement models: scale a single specialist, an entire squad, or an autonomous build-and-ship pod.
• End-to-end ownership: discovery → design → development → launch, with weekly velocity reports and transparent KPIs.
• Cost-efficient remote talent: New York, Porto, Pune & Hanoi offices give you round-the-clock progress without Silicon-Valley price tags. 
• Proven track record: core Alongside team took Arkive, the world’s first decentralised museum, from idea to funded product. We helped Circuit Security to secure 4.5M in funding and many other startups.
