Kotlin Developer (API)

Location: Manila, Philippines

Remote work is possible, preferred time zones GMT+4 to GMT+10

We have many challenges that our team has to solve quickly and efficiently. It gives a huge room for development.There are many processes to create or improve, so we are looking for someone with a systems and analytical mindset, who can offer and argue their ideas.

Your Future Tasks

• Collaborate with cross-functional teams to design, develop, and evolve banking APIs used by mobile applications and internal/external services

• Utilize modern technologies — Ktor, jOOQ, coroutines, Arrow, and other Kotlin ecosystem tools — to build robust, scalable, and maintainable backend solutions

• Contribute to the development and continuous improvement of public APIs, internal SDKs, and shared frameworks, ensuring standardization, reusability, and high engineering quality across teams

• Design and implement high-performance integrations with external platforms and third-party services, focusing on scalability, resilience, and clear contract boundaries

• Participate in architecting and scaling core banking and partner platforms, ensuring reliability, observability, and smooth evolution of the system as the business grows.

What we expect from candidate

• 5+ years of professional software development experience within the JVM ecosystem, with deep familiarity with Kotlin and strong understanding of concurrency models any of following: coroutines, goroutines, actors, futures, async/await, green-threads, etc

• Committed to building high-quality, maintainable architectures. Hands-on experience applying architectural approaches such as event-driven, domain-driven design, and solid understanding of foundational engineering principles (OOP, SOLID, ACID, and related concepts)

• Solid understanding of distributed systems: CAP theorem trade-offs, eventual consistency, data replication, scalability patterns, and fault tolerance

• Practical experience with containerization and orchestration using Docker and Kubernetes, preferably in AWS environments. Ability to design, deploy, and maintain cloud-native applications

• Strong ownership mindset and willingness to continuously learn, mentor others, and contribute to knowledge-sharing and engineering excellence within the team

Additional Requirements/Preferences

• Strong interest in building platforms, not just features — designing reusable components, shared services, and internal developer tools that accelerate product teams and reduce long-term complexity

• Willingness to work close to business, proactively clarifying requirements, influencing decisions, and translating business needs into technical solutions with measurable impact

• Passion for solving complex engineering challenges: data consistency, distributed workflows, performance under load, reliability, observability, and fault tolerance

• Analytical mindset and ownership attitude — able to question assumptions, propose improvements, and drive initiatives end-to-end

Nice to have / Bonus

• Hands-on experience with database performance optimization (indexing strategies, query tuning, execution plans, partitioning, etc.)

• Interest or experience in Functional Programming concepts (immutability, pure functions, Arrow, or other FP libraries)

• Experience in designing and maintaining internal libraries, tooling, or SDKs to improve developer experience and eliminate repeated work across teams

Why would it be cool to work with us?

What we create

• Modern banking services for millions of Filipinos

• Cutting-edge solutions based on the best world practices and AI implementation

• Licensed neobank aiming to be a unicorn and leading fintech in the fast-growing region of Southeast Asia

• A business capable of raising over $200MM from the ADQ (the sovereign wealth fund of Abu Dhabi), World Bank Group and other investors despite the challenging market

• An environment that allows you to launch new products in 3-4 months

• A basis for expanding into new markets all over the world

What we offer

• Passionate international team spanning the globe

• Rapid professional growth. Merit (and merit only) rules the day

• Reward for performance and long-term success of Salmon

• Fast track to grow internationally

• New office in Manila, Philippines

• Relocation support for eligible candidates

• Remote and hybrid options

• Medical insurance, health and wellness benefits

• Program of events and activities both online and in person