3,091 Senior Web Developers jobs in Singapore

1.Collaborate closely with front-end developers in a front-end/back-end separated architecture, following Scrum Agile processes.

2.Design, develop, and maintain back-end systems to ensure high availability, scalability, and security. Participate in requirements analysis, architecture design, and technical solution reviews, translating product needs into reliable back-end implementations.

3.Design and develop RESTful APIs or GraphQL services, ensuring seamless integration with front-end applications and third-party systems.

4.Optimize database structures and queries to ensure stable performance in high-concurrency scenarios.

5.Continuously improve back-end performance, code quality, and system monitoring, proactively identifying and resolving potential issues.

6.Write reusable, maintainable, and well-documented back-end code and unit tests. Conduct code reviews and uphold coding standards and best practices within the team.

Requirements

Bachelor's degree or above in Computer Science, Software Engineering, or a related field.

At least 2–3 years of experience in Java back-end development, preferably with project experience collaborating with React/Vue/Angular front-end teams.

Proficient in Java and familiar with mainstream frameworks such as Spring Boot/Spring Cloud.

Solid experience in designing and implementing RESTful APIs and integrating with front-end or mobile systems.

Familiar with relational databases (e.g., MySQL, PostgreSQL) and NoSQL databases (e.g., Redis, MongoDB), with strong SQL optimization skills.

Understanding of distributed system design, microservices architecture, and message queues (e.g., Kafka, RabbitMQ).

Experience working in Agile Scrum teams with a clear understanding of iterative development and continuous delivery.

Strong coding discipline, debugging skills, and problem-solving ability.

Good communication skills and ability to collaborate effectively across teams.

Proficient in Redis, with experience in caching strategies, distributed locks, and performance optimization.

We are hiring for BACK END Developeres for a client that is based in Marina Bay Singapore

This is a hybrid role that follows a Dayshift Schedule (9 AM)

Salary is up to 12K monthly based on experience

At least 6 years of solid hands on BackEnd Development Experience is required with the below:

• Must be based in Singapore or has Permanent Resident visa
• Java EE, Java SE, Spring MVC
• Strong SQL
• Microservices Architecture
• AWS
• CI/CD

Technical Skills

• 6+ years of Java backend development experience with focus on data processing applications
• 3+ years of advanced SQL experience with complex query optimization
• Deep understanding of parallel data processing frameworks and techniques
• Expertise in memory optimization and performance tuning for large datasets
• Strong experience with relational database integration (PostgreSQL, MS SQL Server preferred)
• Proficiency with cloud platforms (AWS, Google Cloud, or Azure required)
• Solid understanding of SDLC best practices, version control, and CI/CD pipelines
• Knowledge of data security principles and privacy protection measures

Mathematical & Analytical Skills

• Strong mathematical background with ability to work with complex formulas and algorithms
• Excellent analytical and problem-solving capabilities
• Experience with statistical analysis and data modeling concepts

Preferred Qualifications

• AWS certification or extensive AWS experience
• Python programming experience for data analysis and scripting
• Experience with MS SQL Server and/or PostgreSQL dialects
• Knowledge of data warehousing concepts and ETL processes
• Experience with containerization (Docker, Kubernetes)
• Familiarity with data visualization tools and techniques
• Experience with Agile/Scrum methodologies

Key Responsibilities

• Design, develop, and maintain high-performance Java backend systems for data processing and analytics
• Collaborate with cross-functional teams to translate business requirements into technical solutions
• Implement parallel data processing solutions to handle large-scale datasets efficiently
• Optimize memory usage and system performance for data-intensive applications
• Develop and maintain integrations with relational databases and data warehouses
• Create and optimize complex SQL queries for data extraction, transformation, and analysis
• Implement data security measures and ensure compliance with data protection regulations
• Participate in code reviews and maintain high code quality standards
• Design and implement CI/CD pipelines for data engineering workflows

Job Types: Full-time, Permanent

Pay: $8, $12,000.00 per month

Experience:

• Back-end development: 6 years (Required)
• SQL: 3 years (Required)
• AWS: 3 years (Preferred)
• Azure: 3 years (Preferred)
• Google Cloud Platform: 3 years (Preferred)
• SDLC: 5 years (Required)

Location:

• Singapore (Required)

Work Location: In person

• Design and implement high-performance backend services and APIs in a cloud-native environment.
• Collaborate with product managers, business analysts, QA engineers, and DevOps teams to refine requirements and ensure quality delivery.
• Automate build, deployment, and monitoring pipelines using modern tooling.
• Apply software development practices including TDD, pair programming, CI/CD, and continuous refactoring.
• Conduct code reviews and enforce security and software craftsmanship standards.
• Maintain system architecture compliant with industry standards.
• Optimize backend systems for scalability, observability, and reliability.

• Bachelor's degree in Computer Science, Engineering, IT, or related fields.
• Proficiency in backend languages: Java, Kotlin, Python, Golang, Node.js, Ruby.
• Experience with Git workflows.
• Familiarity with cloud platforms: AWS, Azure, Google Cloud.
• Strong understanding of RESTful APIs, GraphQL, gRPC, WebSockets.
• Experience with microservices and event-driven architecture.
• Hands-on experience with Docker, Kubernetes, CI/CD tools.
• Knowledge of databases: PostgreSQL, MySQL, MongoDB, DynamoDB, Redis.
• Experience with observability tools: Prometheus, OpenTelemetry, Grafana, ELK stack.
• Infrastructure as Code (IaC) skills.

• Agile methodologies.
• Extreme Programming (XP): TDD, pair programming, continuous refactoring.
• Test automation frameworks.
• Commitment to clean, maintainable, and efficient code.

Key Deliverables

1. Collaborate with cross-functional teams on data migration and testing requirements.
2. Design, develop, and execute migration scripts for new systems.
3. Build automation tools/scripts for non-functional testing (performance, load, stress, scalability, reliability).
4. Automate test result collection and reporting.
5. Continuously improve automation processes and ensure adherence to standards.

Requirements

1. Bachelor's in Computer Science/Engineering/Mathematics.
2. 3+ years as a developer, able to work independently.
3. Proficient in Bash, Perl, or Python.
4. Experience with Selenium, JMeter, REST APIs, SQL/NoSQL, data transformation.
5. Strong UNIX/Linux experience (mandatory).
6. Good communication, collaboration, and problem-solving skills.
7. Financial industry experience preferred.

About the Role

Join T1's technology team and help build the digital infrastructure that makes trading fun. As a Back-End Developer, you'll design and maintain the server-side systems and APIs that power our trading platforms, connecting talented traders worldwide with institutional-grade trading infrastructure.

Key Responsibilities

Back-End Development

• Design, build and maintain scalable APIs and microservices using Golang and Python
• Develop and optimize database schemas and queries
• Implement real-time data processing systems and WebSocket connections
• Work closely with front-end developers and product owners to deliver robust solutions
• Participate in code reviews and contribute to technical architecture decisions
• Support the development of new features that enhance trader success and platform scalability
• Ensure system reliability, performance optimization, and security best practices

Requirements

Technical Skills

• Strong proficiency in Golang and Python
• Expert knowledge of databases e.g. MySQL, Supabase, Firebase, PostgreSQL
• Solid understanding of REST APIs and WebSocket protocols
• Experience with version control systems (Git)
• Deep understanding of security best practices and performance optimization
• Knowledge of caching strategies (Redis, Memcached)
• Experience with message queues and asynchronous processing

Preferred Experience

• 5+ years of back-end software development experience
• Experience with fintech, trading platforms, or financial applications
• Proven experience with real-time data handling and high-throughput systems
• Familiarity with cloud platforms (AWS, Azure, or GCP)
• Understanding of payment gateway integrations and secure financial transactions
• Experience with containerization (Docker) and orchestration (Kubernetes)
• Knowledge of CI/CD pipelines and automated testing frameworks

Personal Qualities

• Strong problem-solving skills and attention to detail
• Ability to work in a fast-paced, growth environment
• Interest in financial markets and trading technology
• Excellent communication and collaboration skills
• Proactive approach to learning new technologies

What We Offer

Professional Growth

• Work with cutting-edge fintech technology and institutional-grade trading infrastructure
• Exposure to global financial markets and trading operations
• Stay at the forefront of software development in the fintech sector

Compensation & Benefits

• Competitive salary commensurate with experience
• Employee share option plan

Job Description

We are seeking a skilled Mid-Level Backend Developer to join our team and support the design, development, and migration of large-scale systems and applications. The ideal candidate will have strong backend development skills, proven experience in ETL processes and data migration, and the ability to ensure data integrity and minimal disruption during transitions. This role requires strong problem-solving, system integration, and analytical skills while collaborating across cross-functional teams under tight deadlines.

Key Responsibilities

Planning & Analysis: Assess existing data sources, data structures, and system dependencies. Gather and analyze business requirements to define migration scope. Collaborate with business and IT stakeholders to design migration strategies, timelines, cutover plans, and rollback procedures.

Data Extraction, Transformation & Loading (ETL): Design, develop, and execute data migration scripts. Map, transform, and cleanse data to align with target system requirements. Perform incremental and full data migrations with minimal downtime. Ensure data integrity, consistency, and accuracy throughout migration.

Testing & Validation: Conduct trial migrations and validate data completeness and accuracy. Investigate and resolve data issues and discrepancies. Implement error-handling, reconciliation processes, and rollback mechanisms.

Performance & Optimization: Optimize migration processes for handling large-scale data volumes. Monitor and troubleshoot migration performance bottlenecks. Ensure adherence to data security, compliance, and IT policies.

Required Skills & Qualifications

· Bachelor's degree in Computer Science, Information Technology, or related field.

· 3–8 years of backend development experience in large-scale systems and applications.

· Strong programming skills in Java, Python, JavaScript, .NET, C# (any combination).

· Proficient in Object-Oriented Programming, design patterns, concurrency, and software engineering techniques.

· Expertise in Web services, API development, and integration technologies (e.g., .NET Core, XML, HTML).

· Hands-on experience with ETL engineering, data migration, and validation processes.

· Strong SQL knowledge with relational databases (Oracle, MySQL, SQL Server, PostgreSQL).

· Experience in data reconciliation, monitoring, and automated testing.

· Familiar with development tools such as Git, Jenkins, JIRA.

· Understanding of SDLC methodologies (Agile/Waterfall).

· Excellent problem-solving, analytical, and communication skills.

· Ability to work collaboratively in cross-functional teams under tight deadlines.

Nice-to-Have

· Experience with cloud-based data platforms (AWS, Azure, GCP).

· Knowledge of containerization and orchestration (Docker, Kubernetes).

· Exposure to data governance and compliance frameworks (GDPR, HIPAA, etc.).

Founded and based in Singapore, Agridence brings you the future of commodities trading. We are at the forefront of digitalising the agri-commodities supply chain across the globe to create a data-enriched and technology-powered ecosystem. This digital transformation enables deeper analysis of the supply chain to uncover environmental, social and financial risks allowing targeted interventions.
At Agridence, we use technology to enable data transparency and strengthen trust. We provide industry intelligence and insights to empower our customers to make smarter decisions. We strive to identify issues and deliver solutions that will redefine how commodities are produced and traded
Overview
We are looking for a collaborative Software Engineer to help us deliver our vision of a secure marketplace for natural rubber and other software products for the natural rubber supply chain. As part of the Engineering team, you'll enjoy this role if you like the opportunities and challenges of working in a growing business and building extensible, secure and performant systems using best practices across different devices such as web, mobile and IOT and different technologies. You will play a genuinely impactful part that makes a difference to our customers and the industry on our path towards sustainability and traceability. You'll collaborate daily with engineering, product and commercial colleagues and help to build an effective and creative working culture.
Responsibilities
Conduct research and development for the Agridence products
Deliver production quality code based using Java. Knowledge of Spring Boot framework is a must
Must have current working knowledge of Java >= 4 years
Understands concepts in programming patterns, code optimization and best practices
Must have worked on and understand concepts of micro-services and relevant architectural design patterns
Understands different communication frameworks such as gRPC, GCP pub/sub or GraphQL, pub/sub
Qualifications
Degree in Computer Science, Software Engineering, Information Technology or equivalent
At least 4 - 6 years of relevant experience. Those with more years of relevant experience will be considered as Senior role.
Proven work experience as Java Backend Developer >=4 years is a must
Good English communication skills and ability to collaborate across different teams
Manage individual project priorities, deadlines and deliverables
Ability to work effectively in a fast paced, technical environment with high adaptability and flexibility
Seniority level
Mid-Senior level
Employment type
Contract
Job function
Engineering and Information Technology
Industries
International Trade and Development
Software Development
IT Services and IT Consulting
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Overview
Back-end Software Engineer role focusing on building and maintaining backend services with Java Spring Boot, Kotlin, or C# (.NET Core). You will design and implement RESTful APIs and microservices, work with AWS services, and ensure scalable, secure solutions.
Responsibilities
Develop and maintain backend services using Java Spring Boot, Kotlin, or C# (.NET Core).
Design, implement, and document RESTful APIs and microservices architectures.
Collaborate with teams to integrate AWS services and manage data in relational and NoSQL databases.
Apply software design principles (SOLID, DRY) and best practices.
Participate in version control with Git and CI/CD workflows.
Write and execute tests using frameworks such as JUnit, Mockito, Test Containers, NUnit.
Work in an Agile development environment.
Qualifications
8+ years of professional software development experience.
Strong expertise in Java Spring Boot, Kotlin, or C# (.NET Core).
Extensive experience with RESTful APIs and microservices architecture.
Proven experience with AWS services.
Proficient in SQL with experience in relational and NoSQL databases.
Strong understanding of software design patterns and principles (SOLID, DRY, etc.).
Experience with version control systems (Git) and CI/CD practices.
Knowledge of testing methodologies and frameworks (JUnit, TestNG, NUnit).
Experience with agile development practices.
Strong analytical and problem-solving skills.
Technical Skills
Frameworks:
Spring Boot, Spring Cloud, .NET Core
Tools:
Maven/Gradle, Git, Jenkins/GitLab CI
Testing:
JUnit, Mockito, Test Containers
Job details
Seniority level:
Associate
Employment type:
Contract
Job function:
Design
Industries:
Government Relations Services
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Margin Wheeler is Singapore’s leading corporate service provider, delivering award-winning incorporation, corporate secretarial, and accounting/tax solutions. We are looking for a skilled and detail-oriented Back-End Developer to build, maintain, and optimise server-side applications, databases, and integrations that power our internal systems and client websites.
Key Responsibilities
Develop and maintain server-side logic, APIs, and databases.
Collaborate with front-end developers to integrate user-facing elements with back-end systems.
Ensure applications are secure, scalable, and high-performing.
Manage data storage solutions and implement best practices for database optimisation.
Troubleshoot and debug back-end issues, implementing fixes promptly.
Maintain documentation for code, APIs, and systems.
Stay up to date with emerging back-end technologies, frameworks, and security practices.
Requirements
Diploma/Degree in Computer Science, Information Technology, or related field.
2–3 years’ experience
in back-end development.
Proficiency in server-side languages like PHP, Python, or Node.js, and frameworks such as Laravel, Django, or Express.
Strong understanding of databases (MySQL, PostgreSQL, or similar).
Familiarity with version control tools (e.g., Git).
Knowledge of security principles and data protection best practices.
Good problem-solving skills and attention to detail.
Why Join Us
Work on diverse and technically challenging projects for multiple industries.
Collaborate with a skilled front-end and design team.
Supportive and growth-focused work environment.
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