Engineering Manager with 10+ years of experience spanning backend engineering, systems infrastructure, DevOps, and business operations.
About Me
Engineering Manager with 10+ years of experience spanning backend engineering, infrastructure, DevOps, and business operations. Led cross-functional teams across high-scale fintech (WePlus, ReliID), healthcare (Ananda & Aprillia Hospitals), and government platforms. Previously founded and operated F&B businesses, bringing rare commercial and technical hybrid perspective.
Build systems that are simple to understand, reliable under load, and maintainable by the next engineer. Engineering excellence is not about cleverness — it is about clarity, discipline, and commercial awareness.
Location: Banyumas, Central Java, Indonesia
Contact: daniel.wija.w@gmail.com
- Software Engineering
- Backend Engineering
- Infrastructure & DevOps
- Engineering Management
- Healthcare Systems
- Fintech & Payments
- GovTech Services
- F&B Business Operations
Professional Career Journey
Engineering Manager at WePlus
Aug 2025 – Apr 2026 | Jakarta, Indonesia
Domain: Fintech / Insurtech | Type: full-time
- Reduced deployment risk by implementing structured release processes, rollback strategies, and operational runbooks across >10 services and 3 environments.
- Built complete system and infrastructure inventory from previously undocumented environments, identifying operational inefficiencies and reducing cloud resource waste.
- Improved maintainability and delivery consistency by initiating consolidation into a unified React Native codebase.
- Established engineering standards including structured logging, configuration management, and health checks.
- Introduced lightweight governance (RFCs, technical reviews) to improve alignment across engineering, product, and business teams.
Key Metrics:
- 10+: Services Managed
- 3 Stable: Environments
- Unified RN: Codebase Status
Technologies: React Native, Infrastructure, Technical Governance, Release Management, Engineering Standards
Senior Engineer at ReliID (formerly Finsoft.id)
May 2023 – Jul 2025 | Jakarta, Indonesia
Domain: Fintech / Lending | Type: full-time
- Designed and implemented scalable backend systems supporting loan origination and loan management workflows.
- Built modular APIs using Node.js with PostgreSQL, MongoDB, Redis, and RabbitMQ.
- Improved system stability and performance through query optimization, indexing, and robust error handling.
- Introduced engineering best practices (code review, validation, structured logging) to improve maintainability.
- Collaborated closely with product and operations teams to streamline workflows and improve system usability.
- Supported high-volume B2B lending workflows through reliable and scalable backend architecture in production environments.
Key Metrics:
- Origination & Mgmt: Workflows Supported
- Modular B2B API: System Style
- Node & Go: Stack Coverage
Technologies: Node.js, PostgreSQL, MongoDB, Redis, RabbitMQ, B2B Lending
General Manager at Aprillia Hospital
Feb 2024 – Feb 2025 | Cilacap, Central Java, Indonesia
Domain: Healthcare Operations | Type: full-time
- Led cross-functional operations across IT, HR, procurement, and marketing functions in a high-stakes healthcare environment.
- Established structured payroll and shift systems, improving operational clarity and consistency across departments.
- Defined KPI frameworks and reporting dashboards to support data-driven decision-making.
- Standardized procurement processes and vendor management to ensure hospital service continuity.
- Strengthened governance, documentation, and operational controls across departments.
Key Metrics:
- Cross-Functional: Operational Control
- Payroll & Shifts: System Restructured
- IT, HR, Marketing: Management Scope
Technologies: Operations, Healthcare, KPI Frameworks, Procurement, Governance
Head of Information Technology at Ananda Hospital
Feb 2023 – Feb 2024 | Banyumas, Central Java, Indonesia
Domain: Healthcare IT | Type: full-time
- Restructured the IT organization and improved operational reliability across systems supporting hospital services.
- Reduced operational infrastructure and vendor-related costs by up to 60%, while improving IT service availability from 14/24 hours and 6/7 days to 22/24 hours and 7/7 days.
- Strengthened security, access control, and governance practices through tighter operational standards and audit controls.
- Built internal operational systems used across 3 main hospital departments (backoffice, services, corporation), improving workflow consistency and reducing repetitive cross-department administrative coordination.
Key Metrics:
- −60%: Infra Cost Reduction
- 14/6 → 22/7: Availability Jump
- 3 Departments: Internal Systems
Technologies: IT Leadership, Cost Reduction, Hospital Systems, Security Audit, Infrastructure
Backend Engineer at Selleri.id
Sep 2022 – Mar 2023 | Jakarta, Indonesia
Domain: E-Commerce / Social Commerce | Type: full-time
- Developed backend services and APIs for internal and customer-facing social commerce systems.
- Integrated payment gateways and logistics providers with highly reliable webhook handling.
- Improved system performance through caching, query optimization, and architectural improvements.
Key Metrics:
- Social Commerce: System Type
- Payment & Logistics: Gateways Added
Technologies: Node.js, Payment Integration, Logistics Webhooks, API Optimization
Backend Engineer at Ananda Hospital
Sep 2019 – Sep 2022 | Banyumas, Central Java, Indonesia
Domain: Healthcare Systems | Type: full-time
- Built robust backend systems and deep integrations (BPJS healthcare insurance, SIRS government portals, payment systems).
- Improved performance and reliability through background processing, caching, and database query tuning.
- Implemented Role-Based Access Control (RBAC) and detailed audit logging for patient data security and compliance.
- Took on technical leadership responsibilities including mentoring junior developers and task coordination.
Key Metrics:
- BPJS & SIRS: Compliance Standard
- RBAC Audit Log: Security Model
Technologies: BPJS Integration, Database Tuning, RBAC, Audit Logging, Mentoring
Software Engineer at Dinas Komunikasi dan Informatika
Aug 2017 – Aug 2019 | Banyumas, Central Java, Indonesia
Domain: GovTech | Type: full-time
- Built public service systems supporting government and municipal operations.
- Improved system performance and availability for high-traffic public-facing services.
- Implemented database replication, caching, and comprehensive backup strategies.
Key Metrics:
- Public Citizens: Client Base
- DB Replication: Reliability Model
Technologies: GovTech, Database Replication, Backup Strategy, Public Service
Founder at Chicken Chunk
Jan 2024 – Jan 2026 | Banyumas, Central Java, Indonesia
Domain: F&B Business | Type: founder
- Designed detailed cost structure (COGS, margin strategy) and pricing models for retail and B2B channels, ensuring sustainable unit economics.
- Developed repeatable operational systems for production, preparation, and distribution workflows.
- Experimented with go-to-market strategies including offline stalls, frozen products, and partner cafés.
Key Metrics:
- COGS Managed: Unit Economics
- Retail & B2B: Channels
Technologies: Entrepreneurship, COGS Analysis, Operations System, Go-To-Market
Co-Founder & Manager at Mise (Coffee, Milk & Tea)
Apr 2021 – Mar 2023 | Banyumas, Central Java, Indonesia
Domain: F&B Business | Type: founder
- Co-built and operated a local F&B business focused on operational efficiency and profitability.
- Managed pricing, cost control, and comprehensive financial tracking (P&L).
- Built internal Point of Sale (POS), Content Management System (CMS), and operational tools.
- Executed highly effective local marketing strategies to drive recurring customer retention.
Key Metrics:
- P&L Sheets: Financial Tracking
- POS & CMS: Internal Software
Technologies: F&B Brand, POS System, CMS, Profitability Ops, Marketing
Technical & Architectural Projects
Finesse Coffee Shop — GTM (2024 – 2026)
Category: Business Ops
Designed comprehensive go-to-market (GTM) strategies and positioning frameworks for an early-stage specialty coffee brand concept.
Architecture: Designed pitch decks, formulated core brand guidelines, and engineered distribution messaging. Synthesized engineering methodologies with qualitative market research to establish feedback loops for concept validation and customer positioning.
Stack: Market Design, GTM Strategy, Visual Identity, Product Strategy, Audience Validation
- Designed go-to-market strategies and positioning frameworks for early-stage product concepts.
- Built pitch decks and marketing narratives to communicate value propositions clearly.
- Experimented with audience targeting, messaging, and distribution approaches.
- Bridged product thinking, engineering mindset, and marketing execution to validate ideas end-to-end.
Aiqqon.id Payment Ledger (2021)
Category: Fintech
Consulted on and built core transaction processing engines and RESTful payment APIs featuring native QRIS-compatible integrations.
Architecture: Built a highly resilient transactional backend with complete double-entry bookkeeping ledgers. Engineered a secure webhook notifications delivery subsystem implementing cryptographically signed payloads, signature validation, idempotency controls, and auto-retry reconciliation loops.
Stack: Node.js, Express, PostgreSQL, QRIS, ShopeePay, Netzme, Secure Webhooks
- Built payment systems and RESTful APIs with QRIS-compatible e-wallet integrations (ShopeePay, Netzme).
- Implemented secure webhooks, signature validation, idempotency handling, and reconciliation processes.
- Delivered multiple production-ready systems (CMS, payment backend, admin tools).
- Designed scalable data models and optimized database performance for transactional workloads.
ReliID Loan Management System (2023 – 2025)
Category: Fintech
Engineered the core B2B loan management and automated origination pipeline supporting high-volume credit evaluations.
Architecture: Designed microservices using Node.js decoupled via RabbitMQ message broker for asynchronous workflow progression. Implemented indexing, connection tuning, and caching policies across PostgreSQL, MongoDB, and Redis databases.
Stack: Node.js, PostgreSQL, MongoDB, Redis, RabbitMQ, B2B Lending
- Designed and implemented scalable backend systems supporting loan origination and loan management workflows.
- Improved system stability and performance through query optimization, indexing, and robust error handling.
- Supported high-volume B2B lending workflows in production environments.
Ananda Hospital IT Modernization (2023 – 2024)
Category: Healthcare
Restructured the entire municipal hospital IT framework and migrated critical database workflows.
Architecture: Architected central highly-available node cluster replicating patient metadata in real-time. Created unified internal custom backoffice and backplane dashboard coordinating Backoffice, Services, and Corporate departments.
Stack: IT Leadership, Cost Reduction, Hospital Systems, Security Audit, Infrastructure
- Reduced operational infrastructure and vendor-related costs by up to 60%.
- Improved IT service availability from 14/24 hours and 6/7 days to 22/24 hours and 7/7 days.
- Strengthened security, access control, and governance practices through tighter operational standards.
- Built internal operational systems used across 3 main hospital departments.
