{"id":2816329,"url":"https://alion.io/job/mott-macdonald-singapore-principal-associate-process-engineer","title":"Principal / Associate Process Engineer","company":{"id":1797435,"name":"Mott MacDonald Singapore","domain":"mottmac.com","url":"https://alion.io/company/mottmac","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SuccessFactors","truth_index":{"grade":"A","score":100,"open_postings":3,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":12,"computed_at":"2026-10-22T06:10:10Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"junior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Croydon, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":45000,"max_usd":72000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":111},"experience_years_min":null,"visa_sponsorship":true,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":true}],"status":"live","first_seen_at":"2026-09-28T02:00:00Z","employer_posted_date":"2026-09-28","last_verified_at":"2026-10-22T03:32:00Z","board_verified":true,"closed_at":null,"days_open":24,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":24},"description":"Location/s: Cardiff, London, Cambridge, Croydon & Reading; UK\nRecruiter contact: Nicola Coyle\nMott MacDonald is a global engineering, management, and development consultancy with over 20,000 employees across more than 50 countries and 140+ offices.\nWe work across incredible global industries, delivering exciting work that is defining our future and making an important societal impact in the communities we serve. Our people power our performance - we succeed when they do. With countless opportunities to collaborate, learn, and grow, the possibilities for excellence are as varied as every individual.\nWhether you want to grow as a subject matter expert or broaden your experience with roles across our international community, you’re surrounded by global specialists who want to combine their expertise and champion you to be your best. As a proudly employee-owned business, we benefit our clients, our communities, and each other, investing in creating the right space for everyone to feel empowered, included, and valued. Whatever your ambition, Mott MacDonald is where people come to be brilliant.\nAbout the Division\nThe Water Utilities Division is Mott MacDonald’s centre of excellence for responding to the UK and Ireland's water and wastewater challenges. The work we do is at the forefront of ensuring safe water supplies for future generations, preventing urban flooding, and improving the health of our rivers and coastal environments. Our multi-disciplinary teams provide a variety of services throughout the full project life cycle, from advisory services and feasibility studies to outline and detailed design. Together, we deliver best-in-class solutions to our clients while offering diverse and technically stimulating opportunities to our people.\nOverview of the role\nWe have an exciting opportunity for a talented Principal/Associate Process Engineer to join our team supporting the delivery of Thames Water's wastewater treatment and sludge treatment programmes. The successful candidate will play a key role in developing process solutions across Thames Water's wastewater asset base and will work closely with client teams, building strong relationships through regular engagement within Thames Water's Reading offices.\nThis role provides an excellent opportunity to influence the planning, design and delivery of major wastewater investment programmes, working collaboratively with Thames Water, contractors and multidisciplinary design teams\n.Key responsibilities and duties include:\nLead process engineering input across feasibility, concept, outline, and detailed design stages for wastewater and sludge treatment projects.\nAct as a trusted technical advisor to Thames Water, supporting strategic discussions, project development and investment planning activities.\nDevelop and review process designs, including process flow diagrams (PFDs), P&IDs, mass balances, hydraulic calculations, and equipment sizing.\nApply expertise in wastewater treatment processes, possibly including biological nutrient removal, sludge treatment, digestion, dewatering, and emerging treatment technologies.\nAnalyse operational data from wastewater treatment works to identify optimisation opportunities and improve plant performance, resilience, efficiency and compliance.\nUndertake process modelling and simulation to support design development, operational improvement and investment planning.\nPrepare high-quality technical reports, design documentation, business cases, proposals and client presentations.\nReview and approve process engineering deliverables, ensuring technical excellence and compliance with relevant standards and Thames Water requirements.\nDevelop and maintain strong working relationships with Thames Water stakeholders through regular engagement, including working from the client's Reading offices as required.\nMentor and support junior engineers, fostering technical growth and sharing best practice across the business.\nCollaborate with resource coordinators and discipline leads to manage project resources and technical development initiatives.\nSupport business development activities, identifying opportunities for growth within the Thames Water framework and contributing to proposals, tenders and client account planning.\nCandidate specification\nWe are looking for an individual who is passionate about improving wastewater infrastructure, building long-term client relationships and delivering innovative solutions for one of the UK's largest water utilities.\nEssential\nDegree in Chemical Engineering or a related engineering discipline.Chartered Engineer (CEng) status with a recognised Professional Institution.\nSignificant experience in municipal wastewater treatment and/or sludge treatment process design.\nStrong understanding of wastewater treatment technologies, including activated sludge processes, nutrient removal, tertiary treatment and sludge processing.\nExperience delivering feasibility studies, outline designs and detailed designs for wastewater treatment schemes within the UK water sector.\nAbility to build and maintain strong client relationships and operate effectively within client organisations.Experience working within collaborative delivery models, frameworks or long-term water industry programmes.\nStrong understanding of wastewater treatment operational challenges and opportunities for process optimisation.Excellent technical report writing and communication skills.\nProven ability to review and assure technical calculations, reports and engineering deliverables.Ability to mentor and develop engineers and contribute positively to team growth.\nWillingness to travel regularly and work from Thames Water's Reading offices to support client engagement and programme delivery.\nDesirable\nExperience working on AMP programmes and wastewater capital delivery frameworks.\nDemonstrable experience of working collaboratively with UK water utility clients, preferably Thames Water.Familiarity with Thames Water standards, design procedures and governance processes.\nExperience supporting business development, account management and strategic client engagement activities.\nKnowledge of digital delivery tools, process modelling software and data-driven performance optimisation techniques.Commitment to continuous professional development and application of industry best practice. \nUK Immigration\nMott MacDonald Ltd. are not currently offering sponsorship to candidates under the Skilled Worker visa route in the UK. This decision is as a consequence of the changes made to the Skilled Worker route by the UK Government in April 2024. We continue to welcome applications from candidates who are eligible for alternative immigration routes in the UK, that do not require sponsorship as a Skilled Worker now or in future.\nAgile working\nAt Mott MacDonald, we believe it makes business sense for you and your manager to choose how you can work most effectively to meet your client, team, and personal commitments. We offer a hybrid working policy that embraces your well-being, flexibility, and trust.\nEquality, diversity, and inclusion\nWe put equality, diversity, and inclusion at the heart of our business, seeking to promote fair employment procedures and practices to ensure equal opportunities for all. We encourage individual expression in our workplace and are committed to creating an inclusive environment where everyone feels they can contribute.\nAccessibility\nWe want you to perform your best at every stage in the recruitment process. If you are disabled or need any support to enable you to apply or attend an interview, please contact us at  and we will talk to you about how we can support you.\nWe offer some fantastic benefits including:\nHealth and wellbeing\nPrivate medical insurance for all UK colleagues.\nHealth cash plan to support you with every day health costs and treatments.\nAccess to Peppy, providing free support from menopause experts for all UK colleagues.\nA variety of wellbeing support is available through our comprehensive wellbeing program, including access for you and your family.\nAbility to flex your salary to opt into a wide range of health benefits, many of which can be extended to your family too.\nFinancial wellbeing\nWe match employee pension contributions between 4.5% and 7%.\nLife assurance equal up to 4 x your basic salary, with an option to increase the level of cover to 6 x your salary.\nOur income protection scheme provides a financial benefit, as well as absence and return to work support due to long-term illness or injury.\nFlexible benefits, including increased life assurance cover, critical illness insurance, payroll saving and will writing.\nAs an independently owned business we share the financial success of the business with all our colleagues in various ways including annual bonus schemes.\nLifestyle\nA minimum of 33-35 days holiday each year, inclusive of public holidays and dependent on level, with the ability to buy or sell leave through our flexible benefits programme.\nHoliday entitlement increased to a minimum of 35 days after 5 years’ service.\nVariety of employee saving schemes and discounts from high-street retailers.\nEnhanced family and carers leave\nEnhanced family leave policies, including 26 weeks paid maternity and adoption leave, and two weeks paid paternity/partner leave.\nOur shared parental leave matches maternity leave meaning we pay up to 24 weeks at full pay.\nUp to five additional days leave are provided for those with significant caring responsibilities, two of which are paid.\nLearning and development\nPrimary annual professional institution subscription.\nA broad range of opportunities to enhance both technical and soft skills through mentoring, formal training, and self-development options.\nNetworks, communities, and social outcomes\nJoin a wide range of groups including our Advanced Employee Networks which support our LGBTQ+, gender, race and ethnicity, disability, and parents/carers communities.\nMake a difference within our communities through our social outcomes.\nApply now, or for more information about our application process, click here.","description_format":"text","description_chars":10144,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Health insurance","Hybrid work","Parental leave","Professional development"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Management Consulting","Engineering Services"],"lifecycle":[{"event":"open","at":"2026-10-18T13:31:54Z"}],"visa":[],"liveness":{"score":16,"band":"cold","label":"Long shot","p_open":1,"p_active":0.471,"p_room":0.35,"age_days":24,"expected_fill_days":12,"reasons":["conf:2","velocity","win:tail","comp:junior,brand"],"computed_at":"2026-10-22T06:10:10Z"},"pay":null,"html_url":"https://alion.io/job/mott-macdonald-singapore-principal-associate-process-engineer","json_url":"https://alion.io/job/mott-macdonald-singapore-principal-associate-process-engineer.json","meta":{"generated_at":"2026-10-22T07:04:53Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":2474,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-23T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":1797435},"rest":"https://alion.io/mcp/rest/get_company?id=1797435"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmott-macdonald-singapore-principal-associate-process-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fmott-macdonald-singapore-principal-associate-process-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fmott-macdonald-singapore-principal-associate-process-engineer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/mott-macdonald-singapore-principal-associate-process-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmott-macdonald-singapore-principal-associate-process-engineer"}]}