Senior Full-Stack Engineer

Softvil Technologies; Singapore; On-site; SGD 120,000 - 180,000; Full time

Benefits offered by this job

On-site work environment

Opportunities for professional growth

Job summary

Softvil Technologies is seeking a Senior Full-Stack Engineer to design and build scalable web applications using Spring Boot, React.js, and modern architectures. You will own RESTful APIs, microservices, and AWS-based deployments.

Collaborate with product, QA, and DevOps, mentor juniors, and integrate AI/LLM tools such as OpenAI and LangChain. On-site work environment offers growth opportunities for a passionate engineer across frontend and backend tasks.

Qualifications

• REST APIs and Microservices
• Agile/Scrum
• Design Patterns

Responsibilities

• Design and develop robust, high-quality web applications using Spring Boot, React.js, and modern architectures.
• Work on RESTful APIs, microservices, and cloud-based deployments using AWS.
• Integrate AI/LLM tools (OpenAI, Gemini, LangChain) and implement AI-driven features.
• Optimize database performance with PostgreSQL, MySQL, Redis.
• Collaborate with product, QA and DevOps to deliver high-impact solutions.
• Mentor junior developers and promote clean code and continuous improvement.

Job description

Senior Full-Stack Engineer

Are you a passionate engineer who loves building scalable, high-performing systems? Do you thrive on tackling complex challenges across both frontend and backend technologies? If so, we’d love to meet you!

What You’ll Do:

• Design and develop robust, high-quality web applications using Spring Boot, React.js, and modern architectures.
• Work on RESTful APIs, microservices, and cloud-based deployments using AWS.
• Integrate advanced tools such as Stripe, Twilio, and AI/LLM APIs (OpenAI, Gemini, LangChain,etc.).
• Optimize database performance and scalability with PostgreSQL, MySQL, and Redis.
• Collaborate closely with product, QA, and DevOps teams to deliver seamless, high-impactsolutions.
• Mentor junior developers and contribute to a culture of clean code and continuous improvement.

Technical Skills:

• Languages: Java, Python, JavaScript, TypeScript
• Frameworks: Spring Boot, Flask, React.js, Redux
• Databases: MySQL, PostgreSQL, Redis
• Authentication: Keycloak, AWS Cognito
• AI & LLM Tools: OpenAI, Gemini, DeepSeek, LangChain, LlamaIndex, RAG Pipelines
• Integrations: Stripe, Authorize.net, SendGrid, Twilio
• DevOps: Docker, Git, AWS (EC2, S3, RDS), CI/CD
• Testing: JUnit, Postman, Mockito
• Other: REST APIs, Microservices, Agile/Scrum, Design Patterns

Why You’ll Love Working With Us:

• Work on cutting-edge projects integrating AI, cloud, and modern web stacks.
• Join a team that values innovation, mentorship, and quality engineering.
• On-site work environment with opportunities for professional growth.