Company Description Paras Defence & Space Technologies Ltd. specializes in the design, development, manufacturing, testing, and commissioning of products, systems, and solutions for defence and space applications. The company is committed to the “Make in India” initiative and operates as an IDDM (Indigenously Designed, Developed and Manufactured) organization with multiple product lines under one roof.

Paras

Defence offers state-of-the-art manufacturing facilities, a highly skilled workforce, and a robust supply chain capable of supporting turnkey and large-scale projects. Its expertise spans ultra-precision optics, IR and multifold lenses, MIL-grade embedded electronic systems, EMP protection solutions, automated test equipment, defence automation, and heavy engineering solutions. The company serves critical strategic and defence projects, providing opportunities to work on advanced technologies with significant national impact.

Role Description

We are looking for an inventive chemical engineer who thinks like a chemist and builds like an engineer. You will own the design, scale-up and safe operation of reactive chemical supply systems handling basic hydrogen peroxide (BHP), chlorine and iodine, and take them from bench chemistry to qualified hardware.

Key responsibilities

Chemistry and process R&D;

- Lead R&D; on the preparation, stabilisation and characterisation of BHP (alkaline hydrogen peroxide) solutions, including concentration control, temperature management and decomposition behaviour.
- Design and optimise gas–liquid reaction systems involving chlorine, and storage, vaporisation and metered delivery systems for iodine.
- Develop reaction models, mass and energy balances, and kinetic and thermodynamic analyses to predict and improve system performance.
- Plan and run lab-scale experiments, then scale proven chemistry to pilot and full-scale hardware.
- Propose new approaches to raise yield, efficiency, stability and safety; document them as technical notes and, where suitable, patents.

System design and integration

- Own the chemical supply system end to end: P&IDs;, process flow diagrams, equipment sizing, line and valve specifications, and material selection.
- Select materials compatible with concentrated peroxide, wet and dry chlorine,



and iodine vapour at operating temperatures and pressures.
- Work with mechanical, controls and instrumentation teams on interlocks, sequencing, sensors and fail-safe states.
- Support assembly, integration and testing; troubleshoot process issues on the test bench.

Safety, testing and documentation

- Lead HAZOP, HAZID and risk assessments for chemical systems; define safe operating envelopes and emergency procedures.
- Write and execute test plans, Acceptance Test Procedures (ATPs), SOPs and test reports to customer and regulatory standards.
- Oversee safe handling, storage, neutralisation and disposal of hazardous chemicals, in line with PESO, Factories Act and MSIHC Rules.

Leadership

- Mentor junior engineers and chemists, and build lab and pilot-plant capability.
- Present technical progress and design reviews to senior management and government customers.
- Evaluate and manage vendors for chemicals, specialty materials and process equipment.

Required qualifications and experience

- B.E./B.Tech in Chemical Engineering; M.Tech or PhD in Chemical Engineering or Chemistry strongly preferred.
- 10–15 years in chemical process R&D;, pilot plants or specialty chemicals, with at least 5 years in a hands-on R&D; or development role.
- Direct experience handling and designing systems for hydrogen peroxide (including alkaline/basic peroxide), chlorine and iodine.
- Robust grounding in physical, inorganic and reaction chemistry: kinetics, thermodynamics, phase equilibria and gas–liquid mass transfer.
- Track record of taking a process from lab bench to pilot or production scale.
- Working knowledge of HAZOP, process safety management and Indian hazardous-chemical regulations.
- Proficiency in process simulation and calculation tools (Aspen Plus/HYSYS, MATLAB or Python, or equivalent).
- Clear technical writing: test procedures, design reports and reviews.





Technical competencies by chemical Candidates should show depth in at least two of these three areas and working familiarity with the third.

Chemical

What we expect the candidate to know

BHP (basic hydrogen peroxide)

Preparation from concentrated H2O2 and alkali (KOH/NaOH); exotherm and temperature control; peroxide stability and catalytic decomposition; metal-ion contamination; titration and concentration analysis; passivation of tanks and lines

Chlorine

Storage, vaporisation and flow metering; wet vs dry chlorine corrosion; compatible materials (e.g. Monel, Hastelloy, PTFE/PFA linings); leak detection and scrubbing; tonner and cylinder handling practice

Iodine

Sublimation and vapour delivery; heated lines and condensation control; corrosion behaviour of iodine on metals and polymers; flow measurement of condensable vapours; recovery and safe disposal

Experience with other reactive or oxidising chemicals (fluorine compounds, hydrazine, concentrated acids) is a plus.

Desirable experience

- Work on defence, aerospace, propulsion or high-energy systems, or with DRDO, ISRO or similar government labs.
- Experience with chlor-alkali, peroxide manufacturing or iodine processing plants.
- Patents, publications or a record of original process improvements.
- Exposure to PLC/SCADA-based process control and safety interlock design.
- Familiarity with spectroscopic or in-line analytical methods for gas and liquid streams.

The person we want

- Inventive: questions assumptions and proposes solutions that are not in the textbook.
- Chemist at heart: explains why a reaction behaves as it does, not only how to run it.
- R&D; mindset: comfortable with ambiguity, designs experiments to resolve it, and learns from failed runs.
- Safety-first: treats hazardous chemistry with discipline and builds that culture in the team.
- Owner: carries a system from concept to qualified hardware and stands behind the result.

What we offer

- A central technical role on nationally significant strategic programmes.
- Freedom to build lab and pilot capability, and to shape a new chemical-systems team.
- Competitive compensation aligned to experience.
- Work alongside physicists, systems engineers and defence scientists on first-of-their-kind hardware in India.

📌 Senior Chemical Engineer (Mumbai)
🏢 Paras Defence u0026 Space Technologies
📍 Mumbai