C++ Software Engineer

Archit Raj Jain

I build software close to the machine.

C++ ·Systems ·Performance ·Windows ·Diagnostics

Currently building clinical imaging software at Siemens Healthineers. Previously worked on automotive diagnostic software at TCS/Nissan.

View Work ↓Resume (PDF) ↗Get in Touch
SYSTEM CONTEXTBengaluru, India
Current RoleSr. Software Engineer
OrganizationSiemens Healthineers
Primary StackC++14/17 · Win32 · MFC
DomainClinical Imaging Workstations
Past DomainAutomotive ECU Diagnostics
Focus AreaDeterministic & Low-Latency
75% Systems Engineering · 25% Human

Selected Work

Systems & Diagnostic Engineering

Production tools, systems experiments, and native desktop utilities.

01Active

SPECT Clinical Workstation Subsystems

Native C++ components supporting clinical imaging workflows in a SPECT workstation environment.

My current work sits close to the boundary between application behaviour, hardware interaction, Windows APIs and long-lived production code.

  • Maintain and stabilize core acquisition control and workstation workflow modules.
  • Investigate customer-reported issues using crash dump analysis and hardware simulator reproduction.
  • Work within long-lived Windows desktop codebases ensuring system stability and reliability.
C++MFCWin32Clinical Imaging
02Completed

Automotive ECU Diagnostic Engine

Diagnostic infrastructure developed during my work on automotive software at TCS/Nissan.

The work involved diagnostic protocols, OTX execution, ECU communication and tooling used in automotive testing workflows.

  • Engineered ePTI cryptographic validation utility using OpenSSL, reducing vehicle test turnaround time by 30% and increasing test coverage by 15%.
  • Implemented an extensible OTX sequence execution engine adhering to ASAM standards.
  • Delivered native Windows diagnostic tooling adopted across 5+ tier-1 OEM suppliers.
C++OTXUDSOpenSSL
03Experiment
GitHub ↗Notes →

Low-Latency Market Feed Simulator

A personal experiment exploring throughput, queuing, and latency constraints.

A personal experiment to understand what actually happens when throughput and latency start becoming first-class constraints. I'm using it to explore message parsing, queues, memory behaviour, concurrency and measurement rather than treating 'low latency' as a buzzword.

  • Generates synthetic event streams to observe queue depth and backpressure.
  • Compares lock-free queues with bounded ring buffers under concurrent producer/consumer loads.
  • Instruments latency distributions to inspect tail variance.
C++ZeroMQProtobufConcurrency
04Prototype
GitHub ↗Notes →

Real-Time Order Book Visualizer

Desktop visualization tool for inspecting order book dynamics frame by frame.

A small visualization project for exploring market-data processing and real-time rendering.

  • Replays recorded event streams with scrub and step-through controls.
  • Renders real-time depth curves and spread imbalances.
  • Built with Dear ImGui and OpenGL for responsive local visualization.
C++Dear ImGuiOpenGL

Career Timeline

Professional Experience

Work history across safety-critical medical devices and automotive diagnostics.

Aug 2025 — PresentBengaluru, India

Senior Software Engineer

Siemens Healthineers

Clinical Imaging · SPECT · C++ · MFC · Windows

  • Developing and maintaining native C++ components for clinical imaging workstations used in SPECT systems.
  • Working across acquisition control, workstation workflows, debugging, performance and long-lived Windows codebases.
  • Investigating customer-reported issues through crash dump analysis and hardware simulator reproductions.
C++ (14/17)MFCWin32Visual StudioMultithreadingClinical Imaging
Jan 2022 — July 2025Bengaluru, India

System Engineer — Nissan

Tata Consultancy Services (TCS)

Automotive Diagnostics · C++ · OTX · UDS · OpenSSL

  • Developed C++ diagnostic tooling and infrastructure for automotive testing and ECU diagnostics.
  • Worked with UDS, OTX and related diagnostic workflows, including development of an OTX engine and ePTI tooling.
  • Contributed to vehicle testing workflows, achieving a 30% reduction in test turnaround time and a 15% increase in test coverage.
  • Shipped the NRT Tool Windows application used across more than 5 tier-1 OEM suppliers including Bosch, Samsung, and Mitsubishi.
C++ (14/17)MFCDear ImGuiOpenSSLUDSOTXBoostCMake
July 2021 — Dec 2021Bengaluru, India

Assistant System Engineer — Nielsen

Tata Consultancy Services (TCS)

Data Pipelines & Python Automation

  • Refactored legacy Oracle PL/SQL analytical scripts to modular Python packages.
  • Developed Python orchestration packages to process derived telemetry streams.
  • Supported reporting data pipelines for customer reporting products.
PythonSQL / PL-SQLGitData Pipelines
2017 — 2021Bhopal, India

Bachelor of Technology (B.Tech)

University Institute of Technology, RGPV

Major in Electronics and Communication Engineering · Academic standing: GPA: 8.2 / 10. Focused on computer architecture, digital signal processing, microcontrollers, and low-level embedded communication protocols.

Capabilities

Technical Competencies

Languages, tools, and protocols I use regularly in production.

Core Systems

  • C++ (14/17/20)
  • Multithreading & Concurrency
  • Low-Latency Systems
  • Memory Profiling
  • Data Structures & Algorithms
  • C++ STL

Windows & Native Desktop

  • Win32 API
  • Microsoft Foundation Classes (MFC)
  • MSVC Compiler
  • Visual Studio
  • Dear ImGui
  • Crash Dump Analysis

Automotive & Protocols

  • UDS (ISO 14229)
  • OTX (ISO 13209)
  • ASAM Standards
  • OpenSSL / Cryptography
  • ECU Diagnostics
  • CAPL

Tools & Infrastructure

  • CMake
  • Git & SVN
  • Google Test (gTest)
  • SonarQube
  • Python Automation
  • Linux / Bash

Notes

Things I've learned, experiments I've run, and ideas I've found interesting.

Status·Notebook

I'm still building this section.

I occasionally write about C++, systems, things I'm learning, and whatever has caught my attention lately.

Beyond Engineering

Life Outside The Terminal

What keeps me curious, active, and grounded outside of work.

📺

The Office

My comfort show. I've watched it enough times that some episodes feel more like old memories than television.

Comfort Show
🏸

Badminton

My favourite way to spend time away from a screen.

Favourite Sport
✏️

Sketching

Something I enjoy when I want to make something without thinking about whether it compiles.

Pen & Paper
🌻

Sunflowers

My favourite flowers. I like how unapologetically bright they are.

Favourite Flower
🏋️

Gym

A useful counterbalance to spending most of the day sitting down.

Regular Routine
🎧

Music

Mostly post-rock, ambient and lo-fi when I'm working. The rest depends on the mood.

Post-Rock & Ambient
Reading

Books I'm Glad I Read

Usually a mix of software, systems, habits, fiction and whatever happens to catch my attention.

A Philosophy of Software Design

John Ousterhout

One of the books I'm currently reading and thinking about in the context of software design.

Effective Modern C++

Scott Meyers

A book I keep coming back to when I want to think more carefully about modern C++.

Atomic Habits

James Clear

A useful reminder that consistency usually matters more than occasional bursts of effort.

CURRENTLY

Live Context
Reading
A Philosophy of Software Design by John OusterhoutThinking about module boundaries and complexity.
Watching
The OfficeMy default comfort show.
Listening
Post-rock & Lo-Fi ElectronicaHeadphones on while working.
Learning
Lock-free programming, concurrency and cache behaviourExploring low-level memory and synchronization primitives.
Building
Small systems experiments and toolsTesting throughput and latency constraints.
Playing
BadmintonFavourite way to step away from the screen.
DISCOVERY

Random Archit Fact

"The Office is my comfort show."

01 / 08

About Me

The Engineer & The Craft

Most of my working days happen somewhere between C++, Windows, debugging sessions, performance profiles, and figuring out why something that worked perfectly yesterday has decided to throw an access violation today.

I'm currently a Senior Software Engineer at Siemens Healthineers, working on clinical imaging workstation software for SPECT systems. Before that, I spent several years at TCS working on automotive diagnostic software for Nissan.

I enjoy understanding how things work underneath the abstractions — from memory and concurrency to protocols and operating-system behaviour. A lot of my side projects come from that curiosity.

Outside software, I like badminton, going to the gym, sketching, reading, listening to music, and learning things that have nothing to do with my day job.

And yes, The Office is probably on the list.

Guiding Principles

Understand what the machine is doing

Abstractions are useful. Knowing what's underneath them is better.

Clarity beats cleverness

Code should be straightforward to read, maintain, and debug when things go wrong.

Measure before optimizing

Measure first with a profiler rather than guessing where bottlenecks are.

Don't take yourself too seriously

Take the craft seriously, but stay humble and keep a sense of perspective.

Contact

Get in Touch

Whether you want to discuss low-latency C++, medical imaging systems, automotive diagnostics, or just say hello—my inbox is open.

EMAIL ADDRESSiamarchitrajjain@gmail.comPrimary direct channel ↗GITHUBgithub.com/JainuineCode repositories & experiments ↗LINKEDINlinkedin.com/in/architrajProfessional network ↗CURRICULUM VITAEDownload Resume (PDF)Comprehensive work history ↗