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Available for opportunities

Harshana Bandara.

Software Engineer designing scalable applications
within fintech and trading domains.

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01

About

I'm a Software Engineer with experience designing and maintaining fault-tolerant applications and payment integration solutions.

My background spans working with distributed systems, integrating stock exchanges, and troubleshooting critical production issues to deliver scalable systems within fintech and trading domains.

I am driven to contribute to impactful projects while continuously growing technically and professionally, drawing from my strong foundation in Computer Engineering (GPA 3.9/4.0).

Technologies

Go Java C++ Python Kubernetes Docker Temporal MySQL

Education

Bachelor of the Science of Engineering
Specialized in Computer Engineering
University of Peradeniya

Location

Sri Lanka

02

Experience

Yaala Labs | AlpacaDB Inc.

Dec 2025 — Present
Held Positions

Specialist Software Engineer

Jul 2026 — Present

Senior Software Engineer

Dec 2025 — Jun 2026
Stuff I've Done
  • Integrated Tadawul stock exchange via Derayah to the Alpaca system which enabled access to the Saudi market.
  • Contributed to the fault tolerant, idempotent design of the trading and KYC flows.
  • Developed a market simulator to support development, testing, and validate trading flows with integration tests.
  • Implemented the KYC flow for client onboarding with Derayah while working closely with the Derayah team.
  • Managed deployments in staging and sandbox Kubernetes environments.

Enactor Limited

Apr 2023 — Dec 2025
Held Positions

Associate Technical & Team Lead

Aug 2025 — Dec 2025

Senior Software Engineer

Apr 2024 — Aug 2025

Software Engineer

Apr 2023 — Apr 2024
Stuff I've Done
  • Designed, developed, and managed payment integrations for multiple payment service providers including Adyen, Klarna, Nets, and Citcon, ensuring seamless payment processing.
  • Delivered end-to-end implementation of "Cookie", Leroy Merlin's in-house payment system.
  • Authored functional and technical specifications, and how-to guides for internal and external audiences.
  • Led a team of 5 developers to consistently deliver customer-specific enhancements on time.
  • Collaborated closely with major customers such as JYSK, Leroy Merlin, New Look, and Magasin to meet their requirements, ensuring satisfaction and long-term retention.
  • Developed a REST based centrally managed notification management system to display notifications across POS devices.
  • Diagnosed and resolved critical production issues protecting client’s revenue.
  • Spearheaded the separation of the payment integration projects from the platform, reducing release time to 10 minutes from 3 hours.
  • Dockerized the payment related servers to enhance system scalability.

Associate Software Engineer

Future Labs

Oct 2022 — Mar 2023

Designed and implemented a report generation feature and a licensing key generation software with license validation algorithm.

03

Academic & Achievements

University of Peradeniya

GPA: 3.9/4.0
Bachelor of the Sciences of Engineering Honours
  • Ranked among the top 2-5% of students in the Department of Computer Engineering.
  • Final year research project: Implementation of Plain Lattice Based Cryptographic Scheme.

Publications

2023
Literature review for lattice based cryptography schemes

On Advances of Lattice-Based Cryptographic Schemes and Their Implementations
Co-authored with Yasitha Herath, Thushara Weerasundara, Janaka Alawatugoda.
DOI: 10.3390/cryptography6040056

Teaching Experience

Aug 2024 — Dec 2024
Visiting Lecturer — Australian College of Business Technology
  • Taught Cryptography to second-year students as part of the advanced diploma program in Computer Science.
  • Course content covered the basics of cryptography and modern cryptographic schemes.
  • Designed and graded assessments, a mini project, and assignments to ensure student understanding of core cryptographic concepts.

Awards & Certifications
Achievements & Events
  • ACES ESCaPe 2023 — Best Presentation Award for final year research.
  • ACES Hackathon 2019 — Winners of the Agriculture Category.
  • 99x Hacktitude 2022 & Google Kick Start 2021 — Featured in competitive programming leaderboards among thousands of participants.
  • Certifications: Linux Systems Administration and DevOps (WSO2), Embedded Technology Engineer (AOTS Japan), Machine Learning (Duke), Game Theory (Tokyo).
04

Projects

Lattice-Based Cryptography

Implemented a plain lattice-based cryptographic scheme for encryption/decryption, optimizing security and performance parameters as a research project.

C++ ↗

Greenhouse SCADA System

A hardware and software system using ESP8266 and MQTT to monitor environmental variables and control greenhouses.

C / Hardware ↗

8-Bit Single Cycle CPU

Developed an 8-bit single cycle processor using Verilog HDL including ALU, registers, instruction memory, and cache.

Verilog HDL ↗
View More projects on GitHub ↗
05

Get in Touch

I'm always open to discussing new projects, creative ideas, or opportunities to be part of something great.

harshananbandara@gmail.com