Trusting Social

Overview of job

We are seeking a highly skilled and motivated Senior Developer to join our growing team, responsible for building and maintaining our calling platform. This platform is a mission-critical service that manages the routing of phone calls, schedules, and relays messages, and handles payment processing, making debt recovery more efficient.
As a Senior Developer, you will play a vital role in designing, developing, deploying, and maintaining high-quality, scalable, and resilient systems. You will collaborate with a team of talented engineers to build and improve upon our existing microservices architecture, driving innovation and efficiency within our platform. Our current stack is heavily Python-based, utilizing frameworks like FastAPI and tools such as SQLAlchemy, Redis, Celery, and more. We are committed to expanding our technological horizons and are planning to incorporate more languages, particularly Golang, into our ecosystem to leverage its strengths in performance and concurrency, aligning with the practices of other teams within the company. In addition to backend services, we are also seeking engineers who can contribute to building dynamic and responsive user interfaces using modern front-end techniques.

• Competitive compensation package, including 13th-month salary and performance bonuses
• Comprehensive health care coverage for you and your dependents
• Generous leave policies, including annual leave, sick leave, and flexible work hours
• Convenient central district 1 office location, next to a future metro station
• Onsite lunch with multiple options, including vegetarian
• Grab for work allowance and fully equipped workstations
• Fun and engaging team building activities, sponsored sports clubs, and happy hour every Thursday
• Unlimited free coffee, tea, snacks, and fruit to keep you energized
• An opportunity to make a social impact by helping to democratize credit access in emerging markets.

• Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent experience.
• 5+ years of professional experience in software development, with a proven track record of building and deploying production-ready applications.
• Strong proficiency in either Python, Golang, Node.js or C# and their associated ecosystem.
• Willingness to move to another if required. 
• Experience with relational databases (e.g., PostgreSQL) and NoSQL databases (e.g., Redis).
• Solid understanding of software engineering principles, design patterns, and best practices.
• Experience building and consuming RESTful APIs.
• Familiarity with containerization (Docker) and orchestration (e.g., Kubernetes).
• Experience with version control systems (e.g., Git).
• Excellent problem-solving, analytical, and communication skills.

Domain Expertise (You’re likely to be using one or more of these concepts described here for your day-to-day)

• Experience in writing detailed technical specification and documentation. 
• Proven experience in optimizing database performance, including query optimization, indexing strategies, and schema design.
• Experience with database profiling tools and techniques to identify and resolve database bottlenecks
• Strong SQL skills, particularly with PostgreSQL (or similar).
• Experience with domain driven design and test driven development
• Familiarity with UDP, websockets, VoIP protocols (SIP, RTP, WebRTC) and their underlying mechanisms.
• Familiarity with telephony signaling and media processing.
• Familiarity with codecs, cloud telephony platforms, routing and their impact on call quality.
• Familiarity with call routing, IVR systems, and call queuing.
• Familiarity with concepts such as consistent hashing, lock free data structures and orchestration