Quantum Algorithm Engineer

Join the Frontier of Global Technology at Viettel Institute of Strategic Technology

Viettel Institute of Strategic Technology (VIST) | Where Science Serves the Nation.

VIST is the strategic R&D nucleus of Viettel Group — Vietnam's most powerful military-technology conglomerate. We don't build products. We build national capabilities.

Our researchers operate at the frontier of three technology domains critical to Vietnam's long-term sovereignty and technological independence:

⚛️ Quantum Technology — Advancing foundational quantum research to secure and future-proof Vietnam's most critical national systems.

⚡ New Energy — Developing next-generation energy solutions to power Vietnam's strategic platforms and infrastructure with full self-reliance.

🤖 Robotics & Autonomous Systems — Building intelligent autonomous systems that strengthen Vietnam's defense and industrial capabilities from the ground up.

If you are a researcher, engineer, or scientist ready to work on problems that matter at the highest level — we are looking for you.

At VIST, we're building Vietnam's first domestically developed superconducting quantum computer. If you live and breathe quantum information — from Hamiltonian simulation to variational algorithms to error correction — this is the role for you.

We're looking for a Quantum Algorithm Engineer to research, develop, and optimize the algorithms that turn real-world problems into computations our quantum hardware can run — accurately, efficiently, and reliably. Fresh graduates and experienced candidates are both welcome to apply.

📋 What You'll Do

• Research and develop quantum algorithms — Variational Quantum Eigensolver (VQE), Quantum Approximate Optimization Algorithm (QAOA), quantum machine learning, and amplitude estimation — for optimization, chemistry, and materials problems

• Formulate real-world problems as quantum problems: map optimization tasks (network planning, routing, scheduling, logistics) to QUBO/Ising Hamiltonians, and chemistry/materials tasks to second-quantized molecular Hamiltonians with active-space reduction and qubit mapping (Jordan-Wigner and beyond)

• Design and optimize variational quantum circuits: ansatz design, parameter optimization, gradient methods, and mitigation of trainability issues such as barren plateaus

• Research and implement quantum error correction and error mitigation — surface codes, syndrome decoding, zero-noise extrapolation — to improve result fidelity on near-term (NISQ) hardware

• Develop and extend the quantum software stack: build on open-source SDKs (Qiskit, PennyLane), and contribute to the compiler/transpiler pipeline — gate decomposition to native gates, qubit mapping/routing for the hardware topology, and circuit depth/gate-count optimization

• Integrate algorithms into the full quantum computing system in collaboration with cross-functional teams (QPU, QCU, firmware); optimize for execution on the real hardware platform

• Test and validate algorithms in simulation and on real quantum hardware (cloud platforms and the in-house VQC-36 system); analyze noise, fidelity, and runtime to evaluate performance; iterate and improve

• Perform resource estimation (logical qubits, gate and T-gate counts) to assess the feasibility of target applications on near- and long-term hardware

• Track emerging research and technology trends in quantum computing; apply state-of-the-art methods to advance the capability and performance of the system

✅ What We're Looking For

🎓 Fresh Graduates

• Bachelor's degree in Physics, Computer Science, Applied Mathematics, Electrical Engineering, or a related discipline

• Solid foundation in quantum mechanics and linear algebra; understanding of quantum computing fundamentals (qubits, gates, circuits, measurement); logical thinking and a strong learning mindset

• Programming proficiency (Python); familiarity with at least one quantum SDK (Qiskit, Cirq, or PennyLane) is a plus

• Proactive work attitude, sense of responsibility, and ability to work in a team

• English proficiency: TOEIC 550+ or equivalent (ability to read scientific literature and communicate in English)

• Candidates with experience in research projects, a relevant thesis, quantum/physics/coding clubs, or relevant internships are preferred

💼 Experienced Candidates (1–3 years)

• Bachelor's degree in Physics, Computer Science, Applied Mathematics, Electrical Engineering, or a related discipline

• 1–3+ years of hands-on experience in quantum algorithm development or a related field

• Ability to work independently and coordinate across algorithm, software/compiler, and hardware (QPU/QCU) teams

• Practical experience developing quantum algorithms — VQE, QAOA, QML, or quantum error correction — including testing and iterative improvement, is a strong plus

• Ability to map real-world problems to quantum formulations (QUBO/Ising, molecular Hamiltonians) and to benchmark algorithms on simulators and real hardware

🎁 What We Offer

• Competitive salary: negotiable based on experience; fresh graduates reviewed for salary increases every 3 months

• Meal and phone allowances, holiday gifts, performance bonuses, and vacation support

• 27 days of paid leave per year: 12 annual leave days + 11 public holidays + 3 personal days + 1 Innovation Day

• Full social, health, and unemployment insurance per Vietnamese regulations, plus additional Viettel Group insurance packages

• Direct involvement in researching, designing, and building Vietnam's first domestically developed quantum computer

• Opportunities to collaborate with international experts and attend global scientific conferences

• Sponsored training and professional development — domestically and abroad

• Potential pathway to become a professional officer/soldier under the Ministry of National Defense of Vietnam