We are looking for a Senior 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.
Key Responsibilities:
- Design and build scalable, high-performance, and maintainable software solutions.
- Contribute to backend development, infrastructure automation (IaC), and CI/CD pipelines.
- Ensure code quality and reliability through testing, refactoring, and continuous improvement.
- Collaborate with stakeholders, product managers, designers, and engineers to define and deliver new features.
- Translate business requirements into effective technical solutions.
- Participate actively in agile planning and Scrum ceremonies.
- Mentor and support other developers, promoting best practices and technical excellence.
Requirements
- Strong experience in Java development, using modern frameworks such as Spring Boot; familiarity with older Java frameworks is a plus.
- Deep understanding of API design (REST, OpenAPI, GraphQL) and microservices architecture.
- Hands-on experience with message queuing systems such as AWS SQS/SNS and GCP Pub/Sub.
- Skilled in working with databases, including SQL (Oracle, PostgreSQL) and NoSQL solutions.
- Experience building and maintaining CI/CD pipelines using tools like GitLab, Jenkins, and bash scripting.
- Proficient with common development tools — Git, Maven, and IntelliJ IDEA.
- Practical knowledge of cloud platforms (AWS, GCP), Kubernetes, and serverless architectures.
- Strong experience with Infrastructure as Code tools such as Terraform, AWS CDK, Pulumi, Ansible, and Helm.
- Comfortable working in Agile environments with a DevOps mindset.
- Excellent communication and collaboration skills, with 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.
