Sendi Studio

Sendi Studio

Backend & Automation Studio

A Jakarta software studio building backends, AI automation, and web & mobile apps. Founded and led by Sendi Agustian.

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Thoughtful content about building software, working with clients, and shipping with clarity.

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WhatsApp+62 821-1870-4957Email[email protected]
LocationSouth Jakarta

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© 2026 Sendi Studio. Founded by Sendi Agustian.

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Sendi Agustian

About the Founder

Sendi Agustian

Founder & Lead Engineer, Sendi Studio · Tech Solutions Explorer

Software Engineer and experienced team lead with 7+ years in end-to-end web, mobile, and large-scale API development. Skilled in leading teams, optimizing system performance, and implementing AI and automation solutions for critical services to drive efficiency and innovation.

Years of experience
7+
Projects shipped
18
Professional roles
4
Discuss a ProjectDownload CV

Experience

A career path from enterprise to an own studio.

  1. PT Uniktif Media Indonesia

    Backend Engineer - Java Spring Boot

    Present

    PT Uniktif Media Indonesia•January 2026 - Present

    Backend Engineer focused on developing enterprise applications using Java and Spring Boot. Responsible not only for REST API development and business logic, but also for performance optimization, troubleshooting, deployment, database management, application security, and system reliability. Involved in developing and maintaining microservices-based systems, SSO integration, containerization, deployment, and application observability across staging and production environments. Hands-on development experience combined with involvement in technical architecture analysis provides a comprehensive view of the software development lifecycle, from implementation to running applications in production infrastructure.

    • Java
    • Spring Boot
    • Microservices
    • REST API
    • PostgreSQL
    • Docker
    • Kubernetes
    • Traefik
    • Keycloak
    • System Design
    • Performance Optimization
    • Git
    Expand detailsCollapse details

    Responsibilities

    • Develop and maintain Java Spring Boot backend services for enterprise applications with a focus on reliability, scalability, maintainability, and clean architecture.
    • Design and develop RESTful APIs and business logic consumed by Frontend, Mobile, and other services within a microservices architecture.
    • Perform code optimization, legacy system refactoring, and database query analysis to improve application performance and response time.
    • Perform troubleshooting and root cause analysis for critical issues across applications, databases, deployments, and inter-service communication.
    • Manage and troubleshoot Docker-based application deployments across staging and production environments using Coolify, Portainer, Docker Registry, and Traefik.
    • Monitor and troubleshoot Kubernetes workloads, including Pod lifecycle, Horizontal Pod Autoscaling (HPA), resource utilization, eviction, EmptyDir storage, and service reliability.
    • Analyze and configure application routing and reverse proxy using Traefik for domains, HTTPS redirection, middleware, and service routing.
    • Participate in the implementation and troubleshooting of authentication and authorization using SSO, JWT, Keycloak, RBAC, and application credential mechanisms.
    • Manage and troubleshoot PostgreSQL and MySQL databases, including query analysis, schemas, migrations, backup and restore processes, and database synchronization requirements.
    • Collaborate with Frontend, Mobile, DevOps, QA, and other engineering teams to integrate services and resolve cross-application technical issues.
    • Contribute to enterprise solution architecture covering application security, document security, audit trails, object storage, API security, and scalable system design.
    • Perform code reviews and contribute to code standardization to improve consistency, clean code practices, maintainability, and engineering collaboration.

    Achievements

    • Successfully completed technical onboarding quickly and resolved critical bugs on the first day of joining the BCA Young Community (BYC) project.
    • Initiated system performance analysis and identified optimization opportunities across controller structures, business logic, and database queries to improve application efficiency.
    • Contributed to codebase refactoring and code standardization to improve maintainability and simplify future feature development.
    • Successfully troubleshot technical issues across multiple layers, including Spring Boot applications, databases, containers, reverse proxies, and Kubernetes workloads.
    • Contributed to improving application deployment reliability through resource analysis, autoscaling evaluation, Pod lifecycle troubleshooting, container deployment, and service routing configuration.
    • Contributed to the design of technical solutions and enterprise application architecture with considerations for security, scalability, auditability, and maintainability.
  2. Sendi Studio

    Freelance Software Engineer

    Present

    Sendi Studio•2024 - Present

    Provides professional software development services for clients, focused on modern, efficient, and scalable web and mobile solutions.

    • Dart
    • Flutter
    • PHP
    • Laravel
    • JavaScript/TypeScript
    • React
    • Node.js
    • Next.js
    • Tailwindcss
    • Bootstrap
    • MySQL
    • PostgreSQL
    • Docker
    • Git
    • API Integration
    • Java - Springboot
    • Bun - Elysia.js
    Expand detailsCollapse details

    Responsibilities

    • Collaborate directly with clients to analyze requirements and translate them into technical specifications.
    • Design and develop full-stack web applications from scratch to production readiness.
    • Manage projects independently while maintaining code quality and timely delivery.
    • Integrate third-party services and APIs to expand application functionality.

    Achievements

    • Completed multiple web and mobile projects for clients across various industries.
    • Improved client business process efficiency through internal management applications.
    • Built e-commerce platforms and maintained long-term collaboration with clients.
    • Consistently received positive feedback from clients.
  3. PT. Protonema

    Team Leader | Software Engineer

    PT. Protonema•October 2022 - December 2025

    Led the frontend team and AI automation implementation to improve customer survey applications and critical service monitoring at Telkomsel.

    • Team Leadership
    • Frontend Development
    • AI
    • Automation
    • System Integration
    • API Development
    • Mobile Development
    Expand detailsCollapse details

    Responsibilities

    • Led frontend teams in the development of critical mobile and web applications.
    • Contributed to the concept and implementation of AI automation solutions for large critical Telkomsel service monitoring.
    • Managed the application development lifecycle from concept to launch and maintenance.

    Achievements

    • Improved data collection efficiency and customer satisfaction through TNPS integrations with ByU and GraPARI Online.
    • Improved internal sales productivity, ordering efficiency, and operational management through developed applications.
    • Improved operational visibility, service performance, and issue prevention for critical Telkomsel infrastructure.
  4. Lontarlab (Software House)

    Software Engineer

    Lontarlab (Software House)•April 2019 - September 2022

    Led a six-person development team for web and mobile projects, ensuring timely delivery and effective resource optimization.

    • Project Management
    • Budget Management
    • Product Development
    • Web Development
    • Mobile Development
    • Leadership
    Expand detailsCollapse details

    Responsibilities

    • Led development teams for web and mobile projects.
    • Managed development division budgets to support smooth operations and project continuity.
    • Contributed as content PIC and led development of key modules for Thawaf.
    • Actively contributed to strategic company projects such as Kawan Haji, Thawaf, Dashboard Haji 1443, and 7in1.

    Achievements

    • Delivered projects on time and optimized resource allocation for successful outcomes.
    • Improved functionality and user experience significantly for Thawaf.
    • Contributed to successful launches and adoption of several important company products.

Expertise

Technologies and skills used in the field.

  • Java
  • Spring Boot
  • Microservices
  • REST API
  • PostgreSQL
  • Docker
  • Kubernetes
  • Traefik
  • Keycloak
  • System Design
  • Performance Optimization
  • Git
  • Dart
  • Flutter
  • PHP
  • Laravel
  • JavaScript/TypeScript
  • React
  • Node.js
  • Next.js
  • Tailwindcss
  • Bootstrap
  • MySQL
  • API Integration
  • Java - Springboot
  • Bun - Elysia.js
  • Team Leadership
  • Frontend Development
  • AI
  • Automation
  • System Integration
  • API Development
  • Mobile Development
  • Project Management
  • Budget Management
  • Product Development
  • Web Development
  • Leadership

Start a Project

Have a product idea or a process worth automating?

Tell us what you need over WhatsApp or email. We'll help map the scope, estimate, and the stack that makes the most sense for your team.

  • Scope & estimate discussion
  • Backend, automation, web & mobile
  • English & Bahasa Indonesia
  • Based in Jakarta, remote-friendly
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