Senior Software Engineer, Backend - Ecosystem Job at Airwallex (Singapore)

Scala Backend Software Engineer, Senior / Lead

To sustain the company's growth, Ledger is looking for new talents. You will sta...

Location

France , Paris

Salary:

Not provided

Ledger

Expiration Date

Until further notice

Requirements

Experienced engineer and continuous learner with 6+ years of relevant engineering experience
2+ years of technical leadership experience, including effective communication of complex concepts and cross-team coordination to ship critical products
Advanced Scala proficiency
expert-level proficiency, and advanced mastery of a second backend language (e.g., Rust, Java, Python, PHP) is a plus
Excellent collaboration and communication skills
Experience collaborating closely with QA, product management, and key stakeholders to develop and deliver on a shared vision
Led development of complex, high-performance interactive browser applications, including architecture, infrastructure, and optimization
Experience with various web architecture patterns (e.g., Microservices, Event-Driven, P2P)
Ability to apply and adapt software engineering best practices to the engineering environment
Experience in the Web3 ecosystem and in a project involving blockchain fundamentals

Job Responsibility

Develop and maintain high-performance, resilient microservices and APIs to power Ledger's products, including integrations with staking, yield, DeFi services, and blockchain explorers
Contribute to the architecture, design, and implementation of scalable solutions, proactively identifying and addressing technical challenges
Ensure software quality through testing, documentation, and performance optimization, including monitoring and alerting systems
Enhance and maintain CI/CD pipelines to secure and streamline deployment workflows
Provide technical leadership and mentorship, collaborating across teams to deliver impactful projects and improve engineering standards
Drive innovation by identifying opportunities for improvement, contributing to a shared knowledge base, and participating in technical outreach
Manage projects effectively, respecting deadlines, priorities, and deliverables.

What we offer

Equity: Employees are the foundation of our success, and we award stock options so you can share in that success as we grow
Flexibility: A hybrid work policy
Social: Annual company outing for Ledgerdary Days, plus frequent social events, snacks and drinks
Medical: Comprehensive health insurance policy offering extensive medical, dental and vision care coverage
Well-being: Personal development, coaching & fitness with our dedicated partners
Vacation: Five weeks of paid leave per year, in addition to national holidays and rest & relaxation (RTT) days
High tech: Access to high performance office equipment and gadgets
Transport: Ledger reimburses part of your preferred means of transportation
Discounts: Employee discount on all our products.

Fulltime

Senior Software Engineer, Front End

As a Senior Software Engineer, Front End at Kiddom, you will help design and del...

Location

United States , San Francisco Or New York

Salary:

150000.00 - 200000.00 USD / Year

Kiddom

Expiration Date

Until further notice

Requirements

5–8+ years of professional software engineering experience, with significant emphasis on modern front-end development
Strong proficiency with React (or similar frameworks such as Vue or Angular) and the surrounding ecosystem (state management, routing, build tools)
Solid understanding of frontend performance, responsive UI development, and accessibility best practices
Ability to design modular, scalable solutions that support long-term product evolution
Familiarity with backend fundamentals (REST APIs, microservices, data modeling) and experience collaborating closely with backend teams
Experience with cloud-based infrastructure (AWS, GCP, or similar)
Strong communication skills and the ability to collaborate across design, product, and engineering
Passion for building products that improve the lives of teachers and students

Job Responsibility

Lead the implementation of major product features and frontend initiatives across our web apps
Contribute to the evolution of Kiddom’s frontend architecture, focusing on performance, reliability, accessibility, and long-term maintainability
Collaborate deeply with designers and product managers to translate requirements into elegant user experiences
Partner with backend engineers to shape APIs, data models, and integration patterns for scalable front-end development
Participate in design reviews, code reviews, and architectural discussions
Mentor and support junior and mid-level engineers, fostering a culture of quality and continuous improvement
Identify technical debt and propose pragmatic solutions that align with product needs
Help drive improvements in testing, tooling, CI/CD, and overall developer experience

What we offer

Competitive salary
Meaningful equity
Health insurance benefits: medical (various PPO/HMO/HSA plans), dental, vision, disability and life insurance
One Medical membership (in participating locations)
Flexible vacation time policy (subject to internal approval). Average use 4 weeks off per year
10 paid sick days per year (pro rated depending on start date)
Paid holidays
Paid bereavement leave
Paid family leave after birth/adoption. Minimum of 16 paid weeks for birthing parents, 10 weeks for caretaker parents. Meant to supplement benefits offered by State
Commuter and FSA plans

Fulltime

Senior Scala Backend Engineer

To sustain the company's growth, Ledger is looking for new talents. You will sta...

Location

France , Paris

Salary:

Not provided

Ledger

Expiration Date

Until further notice

Requirements

Experienced engineer and continuous learner with 6+ years of relevant engineering experience
2+ years of technical leadership experience, including effective communication of complex concepts and cross-team coordination to ship critical products
Advanced Scala proficiency
expert-level proficiency, and advanced mastery of a second backend language (e.g., Rust, Java, Python, PHP) is a plus
Excellent collaboration and communication skills
Experience collaborating closely with QA, product management, and key stakeholders to develop and deliver on a shared vision
Led development of complex, high-performance interactive browser applications, including architecture, infrastructure, and optimization
Experience with various web architecture patterns (e.g., Microservices, Event-Driven, P2P)
Ability to apply and adapt software engineering best practices to the engineering environment
Experience in the Web3 ecosystem and in a project involving blockchain fundamentals

Job Responsibility

Develop and maintain high-performance, resilient microservices and APIs to power Ledger's products, including integrations with staking, yield, DeFi services, and blockchain explorers
Contribute to the architecture, design, and implementation of scalable solutions, proactively identifying and addressing technical challenges
Ensure software quality through testing, documentation, and performance optimization, including monitoring and alerting systems
Enhance and maintain CI/CD pipelines to secure and streamline deployment workflows
Provide technical leadership and mentorship, collaborating across teams to deliver impactful projects and improve engineering standards
Drive innovation by identifying opportunities for improvement, contributing to a shared knowledge base, and participating in technical outreach
Manage projects effectively, respecting deadlines, priorities, and deliverables

What we offer

Equity: Employees are the foundation of our success, and we award stock options so you can share in that success as we grow
Flexibility: A hybrid work policy
Social: Annual company outing for Ledgerdary Days, plus frequent social events, snacks and drinks
Medical: Comprehensive health insurance policy offering extensive medical, dental and vision care coverage
Well-being: Personal development, coaching & fitness with our dedicated partners
Vacation: Five weeks of paid leave per year, in addition to national holidays and rest & relaxation (RTT) days
High tech: Access to high performance office equipment and gadgets
Transport: Ledger reimburses part of your preferred means of transportation
Discounts: Employee discount on all our products

Fulltime

Senior Software Engineer - Knowledge Base

Join our Knowledge Base team and work alongside Security Engineers, Software Eng...

Location

Serbia , Belgrade

Salary:

Not provided

Azul Systems

Expiration Date

Until further notice

Requirements

7+ years of hands-on development experience with Java (Kotlin or strong interest in Kotlin is a plus)
Experience building backend services and working with modern JVM-based systems
Familiarity with AWS cloud services and cloud-native application development
Experience with relational databases, NoSQL stores, and messaging systems (Kafka, SNS/SQS, etc.)
Exposure to data pipelines, data ingestion, ETL/ELT, or data delivery systems is highly valued
Understanding of distributed systems fundamentals, service reliability, and performance considerations
Strong debugging and problem-solving skills
comfortable reading and improving existing codebases
Good communication skills and a collaborative mindset
Bachelor’s/Master’s degree in Computer Science or equivalent experience

Job Responsibility

Develop high-quality features and improvements in Java/Kotlin, with a strong focus on maintainability and readability
Participate in design discussions and contribute to technical decisions, without needing to drive long-term architecture alone
Help translate requirements into clear, practical designs and implementation steps
Contribute to small-scale proofs-of-concept and prototypes to validate ideas and explore alternatives
Evaluate trade-offs between solutions while keeping simplicity, cost, stability, and performance in mind
Collaborate closely with the team to break down work, estimate tasks, and deliver incrementally
Collaborate with other engineering teams, product managers, and data teams to ensure smooth integration of features and shared services
Recommend improvements to monitoring, metrics, performance, and reliability of cloud services (AWS preferred)
Engage actively in code reviews, sharing feedback and ensuring high-quality standards across the team
Build scalable, resilient backend services within our cloud environment and data pipeline ecosystem

What we offer

Equity Program - be part of the company success
Annual bonus based on company performance
Referral Program - bring your colleague we would all love to work with
IT Equipment - MacBook Pro or any other HW according to your preferences
Work-life balance - 5 weeks of holidays, 5 sick days, flexible working hours, 100% work from home also possible
Offices in Belgrade City Centre - if you prefer
work with top experts worldwide who contribute to the Java ecosystem

Fulltime

Senior Software Engineer - Knowledge Base

Join our Knowledge Base team and work alongside Security Engineers, Software Eng...

Location

Czech Republic , Prague

Salary:

Not provided

Azul Systems

Expiration Date

Until further notice

Requirements

7+ years of hands-on development experience with Java
Kotlin or strong interest in Kotlin is a plus
Experience building backend services and working with modern JVM-based systems
Familiarity with AWS cloud services and cloud-native application development
Experience with relational databases, NoSQL stores, and messaging systems (Kafka, SNS/SQS, etc.)
Exposure to data pipelines, data ingestion, ETL/ELT, or data delivery systems is highly valued
Understanding of distributed systems fundamentals, service reliability, and performance considerations
Familiarity with AI/LLM-based systems and how backend services interact with them (e.g., prompt orchestration, model APIs, embedding pipelines) is a plus
Comfortable participating in design discussions without needing to own architecture
Strong debugging and problem-solving skills

Job Responsibility

Develop high-quality features and improvements in Java/Kotlin, with a strong focus on maintainability and readability
Participate in design discussions and contribute to technical decisions, without needing to drive long-term architecture alone
Help translate requirements into clear, practical designs and implementation steps
Contribute to small-scale proofs-of-concept and prototypes to validate ideas and explore alternatives
Evaluate trade-offs between solutions while keeping simplicity, cost, stability, and performance in mind
Collaborate closely with the team to break down work, estimate tasks, and deliver incrementally
Collaborate with other engineering teams, product managers, and data teams to ensure smooth integration of features and shared services
Recommend improvements to monitoring, metrics, performance, and reliability of cloud services (AWS preferred)
Engage actively in code reviews, sharing feedback and ensuring high-quality standards across the team
Build scalable, resilient backend services within our cloud environment and data pipeline ecosystem

What we offer

Equity Program - be part of the company success
Annual bonus based on company performance
Referral Program - bring your colleague we would all love to work with
IT Equipment - MacBook Pro or any other HW according to your preferences
Work-life balance - 5 weeks of holidays, 5 sick days, flexible working hours, 100% work from home also possible
Offices in Prague City Centre - if you prefer
Most importantly you will work with top experts worldwide who contribute to the Java ecosystem

Fulltime

Senior Software Engineer - Knowledge Base

Join our Knowledge Base team and work alongside Security Engineers, Software Eng...

Location

Cyprus , Limassol

Salary:

Not provided

Azul Systems

Expiration Date

Until further notice

Requirements

7+ years of hands-on development experience with Java (Kotlin or strong interest in Kotlin is a plus)
Experience building backend services and working with modern JVM-based systems
Familiarity with AWS cloud services and cloud-native application development
Experience with relational databases, NoSQL stores, and messaging systems (Kafka, SNS/SQS, etc.)
Exposure to data pipelines, data ingestion, ETL/ELT, or data delivery systems is highly valued
Understanding of distributed systems fundamentals, service reliability, and performance considerations
Strong debugging and problem-solving skills
comfortable reading and improving existing codebases
Good communication skills and a collaborative mindset
Bachelor’s/Master’s degree in Computer Science or equivalent experience

Job Responsibility

Develop high-quality features and improvements in Java/Kotlin, with a strong focus on maintainability and readability
Participate in design discussions and contribute to technical decisions, without needing to drive long-term architecture alone
Help translate requirements into clear, practical designs and implementation steps
Contribute to small-scale proofs-of-concept and prototypes to validate ideas and explore alternatives
Evaluate trade-offs between solutions while keeping simplicity, cost, stability, and performance in mind
Collaborate closely with the team to break down work, estimate tasks, and deliver incrementally
Collaborate with other engineering teams, product managers, and data teams to ensure smooth integration of features and shared services
Recommend improvements to monitoring, metrics, performance, and reliability of cloud services (AWS preferred)
Engage actively in code reviews, sharing feedback and ensuring high-quality standards across the team
Build scalable, resilient backend services within our cloud environment and data pipeline ecosystem

What we offer

Equity Program - be part of the company success
Annual bonus based on company performance
Referral Program - bring your colleague we would all love to work with
IT Equipment - MacBook Pro or any other HW according to your preferences
Work-life balance - 5 weeks of holidays, 5 sick days, flexible working hours, 100% work from home also possible
Offices in Limassol City Centre - if you prefer
you will work with top experts worldwide who contribute to the Java ecosystem

Fulltime

Senior Backend Engineer

Come help us build the next generation platform that will power Highspot’s visio...

Location

Canada , Vancouver

Salary:

146000.00 - 220000.00 CAD / Year

Highspot

Expiration Date

Until further notice

Requirements

Have 8+ years of relevant industry experience
3+ years leading large-scale, complex projects or teams as an engineer or tech lead
Are obsessed with distributed systems at scale, infrastructure reliability, scalability, security, and continuous improvement
Strong problem-solving skills and the ability to work independently
Have a passion for supporting internal partners, like research, to understand their needs
Have excellent communication skills to build consensus with stakeholders, both internally and externally
Possess deep knowledge of modern cloud infrastructure, including Kubernetes, Kafka, AWS, and Azure

Job Responsibility

Develop product features and a platform with the highest quality
Define and meet scalability, uptime, performance, and security goals
Leads by example and mentors others to produce extensible and maintainable code used across products
Partner cross-functionally with UX and Product Management to create the best software possible
Take on the role of a technology leader in our most challenging cross-functional projects
Support the professional growth of others by actively mentoring individuals
Leverage your extensive knowledge and experience to exert technical influence over multiple teams, enhancing their productivity and effectiveness through sharing
Resolve major customer technical issues in production, and contribute to internal and external technical documentation
Set technical strategy and oversee the development of high-scale, reliable infrastructure systems
Work across many of Highspot partners and their EcoSystems

What we offer

Comprehensive medical, dental, vision, disability, and life benefits
Group Retirement Savings Plan (RRSP) and matching employer contributions (DPSP) with immediate vesting
Flexible PTO
Generous Holiday Schedule + 5 Days for Annual Holiday Week
Quarterly Recharge Fridays (paid days off for mental health recharge)
Flexible work schedules
Access to Coaches and Therapists through Modern Health
2 Volunteer days per year
Monthly transportation allowance for employees that work in our Vancouver Hub location
Employees are eligible to receive stock options

Fulltime

Senior Backend Engineer - Product & Dev Tooling

Endor Labs is building the Application Security platform for the software develo...

Location

India , Bengaluru

Salary:

Not provided

Endor Labs

Expiration Date

Until further notice

Requirements

Bachelor’s degree in Computer Science, Engineering, or a related field
5+ years of experience in software engineering, with a strong foundation in backend development
Proficiency in Golang, especially building APIs and tools in microservices architectures
Hands-on experience with observability ecosystems: Prometheus, Grafana, OpenTelemetry, etc.
A strong SRE mindset—understanding SLAs/SLOs, incident response, root cause analysis—but with a builder’s approach to creating software and automation
Familiarity with distributed systems, metrics pipelines, and scalable monitoring infrastructure
Proven ability to design and implement technical solutions from the ground up with minimal supervision
A passion for transforming complex data into actionable insights through intuitive dashboards
Excellent communication skills and a collaborative spirit

Job Responsibility

Build systems and dashboards that enable visibility into the health, performance, and usage of our SaaS platform
Automate troubleshooting by leveraging deep knowledge of the product to reduce time to repair and fix production issues
Build tooling and APIs in Golang to surface data insights via internal dashboards
Partner closely with architects, backend engineers, and product managers to define observability tooling and integrate them seamlessly into our platform
Drive instrumentation and metrics collection across distributed services using Prometheus, Grafana, and related technologies
Champion reliability, debuggability, and performance across the engineering organization

Fulltime

Senior Software Engineer, Backend - Ecosystem

Airwallex

Location:
Singapore , Singapore

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
February 21, 2026

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